The lighting event for technologies of tomorrow · 130 NFC Current Conﬁguration and Constant Lumen Output Functions in LED Power Supplies by Qi ZHU, Dr., Inﬁneon Technologies

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The lighting event for technologies of tomorrow

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Lighting TechnologiesFor Lighting Industry and Lighting Design

Publisher: Luger Research e.U.

Lighting Technologies — For Lighting Industry and Lighting DesignLED professional Symposium +Expo 2019LpS 2019, Bregenz, 24-26 September, 2019

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SEPT 25, 2019 18.30 – 24.0018.30 Boarding at the Festspielhaus Bregenz19.00 Drinks reception on board the boat to Lindau19.30 Arrival in Lindau20.00 Dinner21.00 Pause in dinner for the ceremony21.45 Dessert course service23.30 Depart from Lindau24.00 Arrival back in Bregenz

Music by Peter Madson, New York

Get Together & Awards 2019LAKE CRUISE | DINNER | AWARDS | MUSIC

Get your tickets when you register for LpS or TiL.

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LightingTechnologies

For Lighting Industry andLighting Design

19 LpS LECTURES – LIGHTING INDUSTRY

177 TiL LECTURES – LIGHTING DESIGN

253 PANELS & WORKSHOPS

CONTENT 9

19 CHAPTER A: LpS LECTURES – LIGHTINGINDUSTRY

21 Standards Driving Business

22 When Circular Economy Meets the Lighting Industry (LCA)by Deidre WOLFF, MSc, Catalonia Institute for Energy Research (IREC)

24 Ecodesign Directive and Energy Labelling Regulation - A Detailed Impact Overviewby Elena SCARONI, LightingEurope

26 Latest Zhaga Updates - Interoperability, Smart Lightingby Dee DENTENEER, PhD, The Zhaga Consortium

29 Potentials of Digital Disruptions

30 Supply Chain Based Disruptive Business Revolutionby Stefan KREIDLER, Dr., Onlog

32 LiFi Technologyby Tomasz ZAREBA, Dr., Zumtobel Group Services

34 Collective Intelligence in Lighting Controlby Szymon SLUPIK, MSc, Silvair

37 User Centric Lighting – Studies & Surveys

38 A European Workplace Lighting Surveyby Ganix LASA, PhD, Mondragon University

40 An Interactive Approach to the Optimization of Public Space Lighting with Resident’sParticipationby Boris A. PORTNOV, PhD, DSc, Prof., University of Haifa

44 Dynamic LED Public Lighting Solutions: Citizen Perceptions and Evaluationsby Nicolas HOUEL, PhD Student, AAU Laboratory

47 Human Centric Lighting I–III

48 Critical Opinion on the Current Development Status of HCL Solutionsby Wilfried POHL, Mag, Bartenbach

50 Lighting Beyond Light - What Should We Expect from Light in the Future and What doWe Have to Trade in?by Alexander WILM, DI, OSRAM Opto Semiconductors

c© 2019 Luger Research e.U. LpS 2019

10 CONTENT

52 Impact of Solid-State Lighting on Health and Safetyby James Norman BARDSLEY, PhD, Bardsley Consulting

54 In Search of The Perfect Lightby Stephen MASON, Dr., Sustainable Eye Health Pty Ltd

56 Energy and Quality Metrics in Melanopic Stimulus Evaluation for HCLby Octavio Luis PEREZ, PhD, Icahn School of Medicine at Mount Sinai Hospital NYC

58 Current State of Knowledge and the Levels of Various Non-visual Lighting Effectsby Lisa POHL, Dr. med., Bartenbach

60 Critical Evaluation of Adverse Effects of LED Light Sourcesby Markus CANAZEI, PhD, Bartenbach

62 Photobiomodulation: A New Dimension to Human Centric Lightingby Martijn DEKKER, Dr., Seaborough

64 Human Centric Lighting for Top Performance – Learnings from Light Stimulation ofWorld Class Athletesby Andreas Wojtysiak, Dr., OSRAM

67 Innovation in Lighting – Process & Realization

68 Virtual Prototyping in the Lighting Product Developmentby Ervand KANDELAKI, Dr., CADFEM

70 Mass Personalization and Lightingby Daniel Neves PIMENTA, DI, Fraunhofer IBP

72 Complete Luminaire Development Workflow and Practical Results for Tunnel Lightingby Lorenzo TREVISANELLO, PhD, Arianna

75 Light Sources I–IV

76 LED Innovations for the Improvement of HCL Luminairesby Menno SCHAKEL, Nichia

78 Value and Opportunities from Integrated LED Matrix Solutionsby Ingolf SISCHKA, Lumileds

80 GaN-Substrate LEDs: Introduction nPolaby Hong Jae JUNG, Dr., Seoul Semiconductor

82 Towards New Generations of Lighting and Display: Micro-LEDsby Hani KANAAN, Dr., Cea Leti

84 Degradation of Green High-Power LEDs - Influence on Color Stability of Multi-ChannelLuminairesby Alexander HERZOG, MSc, TU Darmstadt

86 LED Spectrum Optimization for Improvement of Human Performances andPsychophysiological Responsesby Makoto OGAWARA, Nichia Europe B.V.

LpS 2019 c© 2019 Luger Research e.U.

CONTENT 11

88 Wafer Integrated Chip on PCBby Marc JUAREZ, Seoul Semiconductor

90 Synergy Between Display and Lighting Technologiesby James Norman BARDSLEY, Dr., Bardsley Consulting

92 Case Studies of Lighting Applications Implementing High Luminance Laser LightSourcesby Julian A. CAREY, SLD Laser

94 A New Method of Spectral Tuning LED With High Color Qualityby Daniel HAN, Beijing Yuji International

97 Internet of Things (IoT)

98 Monetizing the Cloud for Lighting Controlby Patrick DURAND, Future Electronics

100 IoT System Architecture Testing as Part of Continuous Integrationby Jürgen WÖLFLE, Tridonic

102 The Transformation from a Luminaire Manufacturer to a Smart Building Enablerby Fabian GERSCHWILER, Regent Lighting

105 Optics I–II

106 Micro-optics for Efficient LED Spotlights with Arbitrary Farfield Distributionsby Peter SCHREIBER, Dr., Fraunhofer IOF

108 Ultrathin Freeform Micro-optical Elements – The Potential of Tailor-made Light-directingStructures on Foilby Claude LEINER, Dr., Joanneum Research

110 Freeform Optical Structures: From Macro to Micro Scaleby Tamara ADERNEUER, MSc, CSEM

112 Rapid Optics Design and Manufacture for Future Proof Illumination Systems andCustomized Project Lightingby Marco de VISSER, Luximprint

114 Freeform Optics for Precise Non-uniform Illumination Patternsby Oscar FERNANDEZ, PhD, CSEM

116 Application of Diffraction-based Optical Components in Advanced Lighting Systemsby Marek SKEREN, Dr., IQ Structures


12 CONTENT

119 Controls I–III

120 80-20 Vision HCL: How to Conduct an Orchestra of Tunable White Lights to DeliverAffordable HCLby Patrick V. KELLY, PhD, ROBUS

122 Luminaires and the Internet of Things – A Feasible Approach for Retail Applicationsby Meike BARFUSS, Prof., FH Südwestfalen

124 Sensing Outside the Box – The Lighting and Building Automation Convergenceby Tom GRIFFITHS, ams

126 Data Analytics in Connected Lighting Systems – A Case Studyby Sebastian KNOCHE, Dr., ITZ / Trilux & Repro-Light

128 IP to the Node - An Upcoming Disruption in Lighting Controlsby Walter WERNER, Dr., Werner Management Services

130 NFC Current Configuration and Constant Lumen Output Functions in LED PowerSuppliesby Qi ZHU, Dr., Infineon Technologies

132 Clock-Driven Control in Combination with a Linear LED Strip for Human Centric Lightingby Roland MICHAL, Dr., BILTON

134 Miniaturization of LED Drivers and Integration of Connectivityby Laurent JENCK, MBA, ERP Power

137 Quality and Testing I–II

138 Software for Detection of Color Defects in Light Beamby Saitgalina Azaliya KAMILOVNA, MSc, LLC - Lighting Technologies

140 Challenges for Measuring Multichip LED Light Engines for Interior Lighting Applicationsby Mete MUSLU, BSc, Ozyegin University

142 Automatized Lighting Audit: Development of a Robotic Illuminance Meterby Péter CSUTI, PhD, University of Pannonia

144 Increase Product Quality with Reduced Effort: Best Practice in PhotometricMeasurement of LED Luminairesby Simon RANKEL, Dr., Ophir Spiricon Europe, MKS Instruments

146 New EU Energy Consumption Regulation and Their Impact on Testingby Fabian FLIGGE, DI, TÜV SÜD Product Service

149 Quality Engineering I–II

150 Analysis of Improved SAC+ Solders for CSP LEDs on Al-IMSby Gordon ELGER, Prof., Technische Hochschule Ingolstadt

152 Transient Infrared Thermography for Thermal Conduction Path Analysis of LED Modulesby Peter W. NOLTE, Dr., Fraunhofer Application Center for Inorganic Phosphors


CONTENT 13

154 Plasma-metalized Flexible PCBs for LEDs Applicationsby Yaser HAJ-HMEIDI, MSc, LUMITRONIX

156 An Evaluation Guide for Blue Light Hazardby Denan KONJHODZIC, Dr., Instrument Systems

158 Enhanced LED Lighting Modules Protection with New Silicone Encapsulantby Thierry COOREMANS, MSc, DOW SILICONES

160 Predicaments & Strategies in the Development of Intelligent Lightingby Sandy ZHONG, MSc, Lifud Technology

163 Light in Applications I–II

164 Are UV LEDs a Credible Alternative for Disinfection?by François MIRAND, Future Electronics

166 Real Environment Research Laboratory with Light Pollution Optimized Street LightLuminairesby Ferenc SZABÓ, PhD, LightingLab Calibration Laboratory

170 Aspects of Different LED Spectra for Street Lightingby Markus HOFMANN, DI, OSRAM Opto Semiconductors

172 How to Reduce Jetlag by Innovative Cabin Lightingby Achim LEDER, Dr., jetlite

174 UL 8800 Update and New Performance Label for Horticultural Lightingby Hans LASCHEFSKI, Dr., UL

177 CHAPTER B: TiL LECTURES – LIGHTING DESIGN

179 How Smart and Intelligent Can Lighting Be?

180 Innovative PC-App Optionally Combined with Camera for Adjusting the Perfect LightColour Fully Automaticby Peter HAUMER, Dipl.-HTL-Ing., LUMITECH

182 Smart Lights with Machine Learning for Truly Smart Livingby Harry EDELMAN, Dr. Arch., AIDOMUS

184 The Rise of Pixel Art: The Lasting Effects of Affordable Addressable LEDsby Stefan Yazzie HERBERT, The Paranormal Unicorn


14 CONTENT

187 New Lighting Design Approaches in Applications

188 Hospitality Lighting Designby Theodore D. KONTORIGAS, Theodore Kontorigas Lighting Design

190 Ambient Lighting Design for Persuasive Environments Using Social Media Databy Yasaman MAVVAJ, MSc, Koerner Design

192 Inside the Pyramids - Light Where There Should be Darknessby Ruairi O’BRIEN, Associate Professor, Ruairi O’Brien Lighting Design

197 The Light – The New Awareness

198 Light as Essential Part of the Conceptby Sergei TCHOBAN, Arch., TCHOBAN VOSS Architekten

200 Daylight and Light Design Intertwiningby Isabel VILLAR, MSC, White Arkitekter

202 Langsames Licht / Slow Light - From Theory Into Practice and From Art Into Functionby Siegrun APPELT, Siegrun APPELT

205 The Smartness of Buildings & Cities

206 Sensor Ready and MasterConnect: Simple, Scalable, Standardizedby Peter DUINE, PhD, Signify fka Philips Lighting

208 Intelligent Lighting for Smart Buildings and Smart Cities Enabled by Integrated SensingSolutionsby Richard FIX, Dr., Bosch Sensortec

211 Innovations in Lighting Design – Thinking Out of the Box

212 Lighting, Dynamic Urban Spatial Art and Teachingby Ruairi O’BRIEN, Associate Professor, Ruairi O’Brien Lighting Design

216 When Lighting Design Meets Design Thinking: Putting People Firstby Sabine DE SCHUTTER, M.A Architectural Lighting Design / M.A. InteriorArchitecture, Studio De Schutter

218 Evolution of Lighting Design Processes in Digital Timesby Bert JUNGHANS, DI, Zumtobel Lighting


CONTENT 15

221 Light and Lighting Design – Thinking Different

222 When Lighting Design Meets Design Thinking: Putting People Firstby Olga TUZOVA, MA, Politecnico di Milano

224 Illuminance, Apparent Brightness and Circadian Rhythms. A New Era in LightingDesign?by Alexandra KALIMERI, ME Engineers

226 Good Night = Good Light. New Ways to Reduce the Use of Artificial Lighting -Especially During Nightby Ofer KEREN, Keren Energy

229 The Process of Modern Lighting Designs

230 Stakeholders: How can They be Organized in Order to Achieve the Desired Quality ofPublic Lighting in 2030?by Iris DIJKATRA, MSc, Atelier LEK

234 Light Designer’s Role in Complex Projectsby Diana GALIC, M. Light Design, M. Econ., NOVA-LUX

237 Digitalization in Lighting – Impacts on Users and Usages

238 Light Connects – The Symbiosis of Light and Digital Content Creates New Levels ofCustomer Experienceby Andreas HENRICH, Diplom Designer, fh+p (faust henrich and partner ) / SchmitzWILA

240 Lighting Control - Truly Wirelessby Matthias KASSNER, DI, EnOcean

244 Best Practice in Wireless Lighting Controlsby Antonio ARTECHE, Casambi

247 Latest LED Technology Trends

248 Morning to Evening - Healthy Lightingby Sangwook JUNG, PhD, Seoul Semiconductor

250 Tunable Lighting Systems for Optimal Health in Humans and Plantsby Tom JORY, MBA/EE, Luminus Devices


16 CONTENT

253 CHAPTER C: PANELS & WORKSHOPS

255 Women in Light – The Digital Era

256 PANEL: Women in Lighting – The Digital Era, a Step Back a Step Forwardby Mahdis ALIASGARI, Barbara Rodriguez PANDO, LIGHTING DESIGN COLLECTIVE

259 Visual Perception and Health Demonstration

260 WORKSHOP: LED Lighting Concepts: Visual Perception and Health – Demonstrationsby Wilfried POHL, Mag., Bartenbach

263 Lighting Design in Digital Times

264 WORKSHOP: Evolution of Lighting Design Processes in Digital Timesby Holger LEIBMANN, DI Architect, Zumtobel

267 LED World Market Leader Showcases the Latest Trends

268 WORKSHOP: Experience How New LED Technologies Raise the Bar in Human CentricLightingby Giovanni Vecchio, Nichia

271 How to Install a Bluetooth Mesh Lighting Control System

272 WORKSHOP: Setting up a Robust Lighting Control System with Bluetooth Mesh - FromCommissioning Basics to Troubleshootingby Michal HOBOT, MSc, Silvair

275 Light-Guides and OLED Workshop

276 WORKSHOP: Next Generation Lightguides, OLED and R2R Manufacturingby Jose POZO, PhD, EPIC – European Photonics Industry Consortium


Keynote Speaker

Dietmar ZembrotCTOTrilux

CHAPTER A

LpS LECTURES – LIGHTINGINDUSTRY

21 Standards Driving Business

29 Potentials of Digital Disruptions

37 User Centric Lighting – Studies & Surveys

47 Human Centric Lighting I–III

67 Innovation in Lighting – Process & Realization

75 Light Sources I–IV

97 Internet of Things (IoT)

105 Optics I–II

119 Controls I–III

137 Quality and Testing I–II

149 Quality Engineering I–II

163 Light in Applications I–II

Standards Driving Business

22 When Circular Economy Meets the Lighting Industry (LCA)by Deidre WOLFF, MSc, Catalonia Institute for Energy Research (IREC)

24 Ecodesign Directive and Energy Labelling Regulation - A Detailed Impact Overviewby Elena SCARONI, LightingEurope

26 Latest Zhaga Updates - Interoperability, Smart Lightingby Dee DENTENEER, PhD, The Zhaga Consortium


When Circular Economy Meets theLighting Industry (LCA)

Deidre WOLFF, MScProject EngineerCatalonia Institute for Energy Research (IREC)Jardins de les Dones de Negre, 1, 2a pl., Sant Adrià de Besòs08930Barcelona, Spain

Co-Author(s): Gabriela Benveniste, Cristina Corchero García

AbstractThe Repro-light (“Re-usable and re-configurableparts for sustainable LED-based lightingsystems”) is a European research project thataspires to successfully initiate a transformation inthe European LED lighting industry by the year2020. This project harnesses innovativeproduction technologies (industry 4.0) andmaterials to design a modular luminairearchitecture with a smart production scheme aspart of a circular economy, a reconfigurablecustomised LED luminaire, the ‘Luminaire of theFuture’. When dealing with lightings, it isimportant to remark that great efforts have beendone in the past to reduce the energyconsumption during their use phase. However,because LED lightings have a specific materialcomposition, with electronic boards and LEDspots, their environmental benefit should becarefully considered. The Circular Economyapproach seems to be more adequate to providea complete view of the environmental burdenscaused by electric and electronic devices startingwith identifying and improving the materials usedfor manufacturing these products, anddetermining their failure rates and potentialreplaceability to elongate their useful life. For thispurpose, this research includes an assessment ofthe lighting components using Life CycleAssessment (LCA) methodology as per the ISO14044 standard, paying special attention to bothClimate Change and Resource Depletion impactcategories. The objective of this LCA is two-fold.On one side, determining which components of a

specific linear LED lighting contribute the most tothe selected environmental impacts and on theother side, determining how the design of thelighting can be improved by using a modulardesign that reduces the overall environmentalimpact across all lifecycle stages. Results haveshown how the electronic components, controland electronic boards contribute the most to allthe selected impact categories. Furthermore, thisstudy has included a review of potential polymersthat can be 3D printed and may replace PMMA forthe optical element in the linear lighting. Thischange is expected to bring environmentalbenefits in the overall environmental profile of thelighting and the objective is to introduce additivemanufacturing technology into the productionlines. In addition to this LCA, a more exhaustiveanalysis has been carried out with the aim ofdetermining the most suitable configurations tomeet industry lighting regulations with a reducedenvironmental impact. The LCA has exploreddifferent scenarios combining number of linearlightings, number of LED modules, durability,power consumption combining natural light indifferent geographic scenarios, dimensions of thecontrol gear, and the possibility of removinginternal wirings. A dimmable and modular lightingproduct with innovative manufacturing techniquesfollowing Industry 4.0 guidelines has beenassessed. This project has received funding fromthe European Union’s Horizon 2020 research andinnovation programme under grant agreement No768780. More information on www.repro-light.eu.


Standards Driving Business 23

Author’s CVDeidre WOLFF, MSc

Deidre Wolff is working as part of the EnergySystems Analytics team at Catalonia Institute forEnergy Research (IREC) as a Project Engineer.She is currently in the final stage of her PhDresearch at Technological University Dublin in LifeCycle Assessment (LCA) with a focus onuncertainty analysis. She further has a Bachelorof Science in Chemistry from Simon FraserUniversity in Canada and a Master of Science inSustainable Energy and Green Technologies fromUniversity College Dublin.

OrganisationThe Catalonia Institute for Energy Research(IREC)

The Catalonia Institute for Energy Research(IREC) was founded to contribute to moresustainable energy use and consumption in thefuture. Economic competitiveness and maximumenergy security are both taken into consideration.

The IREC makes its contribution throughadvances in science and technology. Theresearch requires a long-term vision to identifyfuture energy challenges. However, the Institutealso develops technology that enables companiesto implement immediate innovative solutions.

The project is closely linked to the Catalan,Spanish and international economic system.Therefore, its institutional and business sponsorshave joined forces to a singular and significantextent to attain a common objective: the creationof value by boosting scientific knowledge andtechnology development in the energy sector; asector that has global consequences. As a result,IREC works in an international arena and hasbecome a leading institute in several areas.



Ecodesign Directive and EnergyLabelling Regulation - A DetailedImpact Overview

Elena SCARONIPolicy DirectorLightingEuropeBoulevard Auguste Reyers 801030 BrusselsBelgium

AbstractNew EU rules on ecodesign and energy labellingfor lighting products will probably be published inSummer 2019 and introduce significant changesfor the lighting industry, from the phase out ofconventional technologies to increasedperformance and environmental requirements forlighting products. With increasing world-widedemand for more efficient products to reduceenergy and resource consumption, the EcodesignDirective has a been a major driving force behindthe transition to LEDs over the past years. Morerecently EU Ecodesign policy has steered awayfrom purely energy-efficiency to address the widerenvironmental impact of a product, and nowincludes requirements such as materialsefficiency, reparability and replaceability ofcomponents and the product’s end of life.LightingEurope will provide guidance to themarket to understand and apply the requirementsto their products as of September 2021 and theactions to be taken to strengthen the enforcementof these rules. The presentation will detail themain requirements of the new ecodesign andenergy labelling laws, including what productsaffected, removability requirements, timelines,exemptions, tolerances, endurance testing,information and reporting requirements. It will alsohighlight some pending issues that will need to beaddressed once the final law is published.

Author’s CVElena SCARONI

Elena Scaroni joined LightingEurope as PolicyDirector in September 2016 and is responsible forpolicies related to Circular Economy and thetransition to LED. She has led the advocacy workon behalf of the European Lighting Industry in thelegislative debate between the EuropeanCommission, the Member States and theEuropean Parliament on the latest EcodesignRegulation for light sources. Prior toLightingEurope, Elena worked for 8-years at theEuropean Institutional Affairs of Enel, amultinational energy company for electricity andgas. She was responsible for the relations withthe European Parliament on policies related toenvironment, climate, energy, consumers andCorporate Social Responsibility. Elena started hercareer as an Advisor on International Cooperationfor Development, at the Italian Red Cross inRome and in Kenya for the NGO “Ibo Italia” (theItalian branch of the International BuildingOrganization). Elena studied in Rome and Paris,holds a master’s degree in law and is specialisedin European Affairs.



OrganisationLightingEurope

LightingEurope is the industry association thatrepresents the lighting industry in Europe. We arethe voice of more than 1000 lighting companieswho employ more than 100000 people overEurope. Our daily mission is to advocate anddefend the lighting industry in Brussels whilereconciling it with ongoing EU policy aims. Indoing so, we are dedicated to promoting efficientlighting practices for the benefit of the globalenvironment, human comfort and the health andsafety of consumers. Our unique strength residesin bringing together leading industry actors withlocal and European policy experts in so calledWorking Groups (WG). These WGs are essentialin our mission as they crystalize and often mergedifferent viewpoints on burning lighting industryissues, hence paving the way for concrete policysteps. Their output allows us to operate at thefrontline of EU policy-making. Our WGs arenothing short of real entry points to the Brusselsarena and merit your full participation!



Latest Zhaga Updates -Interoperability, Smart Lighting

Dee DENTENEER, PhDSecretary GeneralThe Zhaga Consortium445 Hoes LanePiscataway, NJ 08854USA

AbstractZhaga is an open, global, industry consortium thatstandardizes the interfaces of components of LEDluminaires, including LED light engines, LEDmodules, LED arrays, holders, electronic controlgear (LED drivers) and sensor and connectivitymodules. It does so to drive out unnecessaryinterface variations and to provide properseparation of concerns to facilitate the interactionbetween different (branches of) industries. In2018, Zhaga has started operating under awidened scope. This allows the organization toaddress all interfaces, explicitly including those forsmart components, such as sensors andcommunication modules. Next, the new missionfocuses on interoperability to allow the upgradingand servicing of LED luminaires. Interoperabilityis a step up in ambition for Zhaga and requiresthat all aspects of the interface are included, notmechanical aspects only. These renewedprinciples will bring Zhaga closer to a new set ofstakeholders from sensor, communication toservices industries. In this paper, we review theZhaga progress since the 2018 LpS. Next tocovering all that happens between writing thisabstract and the 2019 LpS, we will at least coverthe following topics: Book 18 ed. 2, which willspecify a smart luminaire interface between theluminaire and its driver to an external sensor orconnectivity module. This interface simplifies theaddition of communication/sensor nodes to LEDluminaires with plug-and play interoperability. Themechanical aspect of the connectivity interface, toposition the module on the luminaire, was alreadyspecified in Book 18 ed.1. In Book 18 ed.2 alsothe power and control aspects will be specified,referencing new specifications from the Digital

Illumination Interface Alliance (DiiA). Thespecification will be accompanied by acertification program which is currently indevelopment by Zhaga and the Digital IlluminationInterface Alliance (DiiA). This joint program willcertify luminaires and components andguarantees interoperability to the market. ZhagaBook 20; which follows up Book 18 for indoor andwhich will enable similar capabilities forfuture-proofed indoor luminaires for smartbuildings. There are many uses supported by theintroduction of a standard for smart andserviceable indoor luminaires which include, theability to save energy through occupancy sensingand timings, ambient light level detection, wirelesscommissioning, lux level management, assetmanagement via people tracking, secure localwireless data networks and lighting control andprogramming drivers. These benefits will be wellreceived in public environments such as retail andhospitality application areas. Book 21, whichbrings the successful linear modules described inBook 7 to a higher level of interoperability, a.o. viathe specification of a connector.



Author’s CVDee DENTENEER, PhD

Dee Denteneer is Secretary General of the ZhagaConsortium. Dee has held positions at theUniversity of Utrecht, the Statistical Office of theNetherlands, and Philips Research. He has aPhD in mathematics, and a background inwireless connectivity, lighting, project andprogram management, and finance. Currently, heis Director of Standards at Philips Lighting,focussing on strategy and governance in industryalliances. Alongside of his position in the ZhagaConsortium, Dee is a member of the executiveteam, treasurer and chair of the FinanceCommittee of the ZigBee Alliance; TechnicalWorking Group Chair of the Fairhair Alliance; andnon-executive member of the Board of the PhilipsPension Fund.

OrganisationThe Zhaga Consortium

We are a global lighting-industry organization thataims to standardize components of LEDluminaires, including LED light engines, LEDmodules, LED arrays, holders, electronic controlgear (LED drivers) and connectivity fit systems.

Use of Zhaga specifications can provide benefitssuch as the ability to keep pace with rapid LEDtechnology evolution, flexibility to respond tocustomer/market requirements, and improvedsupply-chain management. Zhaga is creating aset of Interface Specifications, known as Books,which define the conditions necessary forinterchangeability. Each Book defines one ormore components of an LED luminaire by meansof the mechanical, photometric, electrical,thermal, and control interfaces of the componentto its environment. Products based on several ofthe Zhaga Books are already in common use inthe global lighting market. Zhaga continues todevelop new specifications that reflect the needsof luminaire makers and other stakeholders.Zhaga members share their technical expertise inan open, cooperative manner. The consortium ismarket-oriented and works in the best interests oflighting-industry stakeholders.


Potentials of Digital Disruptions

30 Supply Chain Based Disruptive Business Revolutionby Stefan KREIDLER, Dr., Onlog

32 LiFi Technologyby Tomasz ZAREBA, Dr., Zumtobel Group Services

34 Collective Intelligence in Lighting Controlby Szymon SLUPIK, MSc, Silvair


Supply Chain Based DisruptiveBusiness Revolution

Stefan KREIDLER, Dr.Network & Innovation-ManagerOnlogVia Sta. Maria 686596 GordolaSwitzerland

AbstractAmazon, Zalando and Alibaba are impressivelyshowing how Supply Chain driven BusinessModels are rapidly changing the game inCommerce of consumer goods. As soon as aGTIN (EAN) is known, the internet is likely to bethe place to find the best offer in terms of supply.

High complexity in the ’engineered’ LightingBusiness was so far preventing similar competitionlevels and disruptions in the concerned industries.According to the author of this paper, EngineeringBusinesses and lighting Business in particular arethe next field for disruptive developments in theirbusiness structures - and this not because of theLED-Technology driven disruption but because ofa completely different setup of competingstructures in the markets.

Swift Supply Chain Engineers are couplingTechnical and Lighting Know-how withCompetitive Sourcing, Project-, Data-, LeanSupply Chain- and Logistics Management andExecution. As a result the Quality and Reliabilityof Lighting and Engineering Projects will increasewhile the cost is reduced drastically. Technicalcharacteristics and differences in LED-Productswill definitely loose importance as they arebecoming ’standard’ for lighting. The customersimply will not take notice of the technical detailsbut put focus on the ’orderly fulfilment’ of theprojects at minimal cost and risk exposure. Fromthe customer point of view - with typically riskadverse behaviour - novelty in technology is evenperceived as a hindering factor, while proven trackof success with proven technology is wanted.With the entrance to the phase of ’post-peak-LED’

project-management will outdo technologicalinnovation by far.

This presentation will show how theComuLux-Program was taking impact to thelighting market where traditional structures arebreaking up and roles are redefined even in thepublic sector. ComuLux was nominated for theSwiss Logistics Award in 2018 and is being rolledout internationally in 2019. The next level ofglobalization starts now in spite of increasingefforts to hinder international competition withpolitical and technical barriers to trade. The newcompetition will be even increasingly driven andaccelerated by professional management ofglobalization issues in complex environment.Further concentration and even harshercompetition will be the outcome for the lightingbranch that will no longer control the markets withits traditional distribution pattern.


Potentials of Digital Disruptions 31

Author’s CVStefan KREIDLER, Dr.

Awarded for „Advanced Economic Thinking“,„Innovative Supply Chains“ and for „BestProducts“. Stefan Kreidler develops andintegrates Economic Theories withManagement-Techniques, Products and Logistics.Based on profound theoretical and practicalKnowledge and vast Experience he is masteringthe Global Economy with all its aspects along withCompetences in Supply-Chain, Technology- andProduction-Management. A dense internationalNetwork and excellent Communication skills arecompleting his personality. * University of Zurich –Dr. oec. publ. (PhD), 1999 Supply Chain &Technology Management, Production,Behavioural Economy, Accounting & ControllingDoctoral Thesis: Economics of industrialProcessing * University of Zurich – lic. oec. publ.(MA/MBA), 1995 Business Management,Economics & organizational PsychologyMaster-Thesis: „Euro-Logistics“ (basis for the2001 award) * College / Kantonsschule im Lee,Winterthur – High-school diploma Type C(Math./Science.), 1989

OrganisationOnlog

The onlog-Value-Chain will not just boost yourinternational Sourcing and Distribution but also itwill help you closing up new Resources andMarkets and it will improve your Supply Chain’sTransparency, Quality and Reliability. onlogprovides your Enterprise with Professional SupplyChain Services and enables OutsourcingCorporate Supply Chain and Logistics Functionswith fully integrated Processes and Structures.



LiFi TechnologyTomasz ZAREBA, Dr.Director Digital ServicesZumtobel Group ServicesSchweizerstrasse 306850 DornbirnAustria

AbstractLiFi-Technology allows the the usage of lightingspectrum for high bandwidth data transfer. Thetechnology will not replace 5G or WiFi but rathersmartly complement available solutions bothbusiness and technology wise. LiFi will enable thelighting industry both to play a new, disruptive rolein communications as well as towards enterprises,covering vertical-specific end-to-end use cases.In order to achieve that, the lighting industry willneed to evolve from hardware-attached businessto service centric models and engage deeper intocooperation models with the broad IT, IoT &telecom industry.

Author’s CVTomasz ZAREBA, Dr.

LinkedIn Profile

OrganisationZumtobel Group Services

Zumtobel Group Services (ZGS) offers a serviceportfolio for the entire lighting sector. ZGS bringsall the services of the Zumtobel Group togetherunder one roof, helping us to redefine theconnected lighting and services market. TheZumtobel Group is an international lighting groupand a leading player in the lighting industry. Withits internationally established Thorn, Tridonic andZumtobel brands, as well as acdc and ZumtobelGroup Services, the Zumtobel Group offerscustomers all around the world a full range ofproducts and services.


https://www.linkedin.com/in/tomaszzareba/




Collective Intelligence in LightingControl

Szymon SLUPIK, MScCTOSilvair717 Market Street, Suite 100CA 94103, San FranciscoUSA

AbstractWith the adoption of the Bluetooth mesh standard,the lighting industry was introduced to the conceptof decentralized lighting control. While notpreviously seen in lighting, technology-drivendecentralization is already happening acrossmultiple industries, transforming businesses andredefining the way we use services. Fromtransportation and power generation to media andbanking, we can see centralized structureschallenged and gradually replaced bydecentralized solutions. It has become clear thatdecentralized systems are more resilient andadaptive. By eliminating middlemen, they simplifyprocesses and reduce inefficiencies.Decentralization is increasingly being perceivedas an inevitable milestone in the technologicalevolution of our society. And lighting controls needit, too. The traditional approach to lighting controlinvolves sensors and fixtures reporting to acentral controller. That controller is nothing but acomputer running lighting control software. Thesoftware takes input signals from sensors andswitches, adds local "logic" (schedules, setpoints,scenarios), and computes output signals that tellluminaires what lumen output they should begenerating. But Bluetooth mesh puts a softwarecontroller into each luminaire. The luminairesthemselves become intelligent and form acomplete control system without the need for acentral control box. The efficiencies of thisarchitecture are intuitively obvious andmathematically provable, leading to increasedreliability and better scalability. The systemarchitecture is simplified, the single point of failureis gone, and the network load is much lower.Instead of waiting for commands from the centralcontrol unit, each luminaire carefully watches its

environment, figuring out by itself how tocontribute to one common goal - to provideoptimal lighting conditions under the givencircumstances. With such a decentralizedauthority structure, a lighting system starts actinglike a single body driven by collective intelligence.Thousands of tiny interactions betweencomponents result in collective intelligence at themacroscopic level. This allows for achievingresults that can’t be achieved when thesecomponents are considered individually. Thereare countless examples of collectively intelligentsystems in nature. By analyzing them, we canunderstand the advantages of decentralizationeven better. Colonies of ants work collectively,finding near-optimal paths to food sources despitethe lack of a central authority. Considering theirsizes, a central authority would be inefficient, andthe transfer of information to and from thedecision-maker would become a lengthy andsensitive process. Driven by collectiveintelligence, ant colonies are resilient, adaptiveand can scale to impressive sizes. All of this istrue for collectively intelligent mesh lightingnetworks. Also here, a central controller onlygenerates problems. Removing it is a step forwardin the evolution of lighting control. The concept ofcollective intelligence provides us with newinsights for understanding how communication inwireless systems should be organized. But as weembrace it in lighting, we need to tailor it to ourneeds. I will discuss the enormous potential ofcollectively intelligent control systems, whileexploring how we can deal with specificchallenges that need to be addressed in thedemanding lighting environment - such as thepotential desynchronization of controller states.



Author’s CVSzymon SLUPIK, MSc

Serial entrepreneur with a strong engineeringbackground. Today, he is a CTO and co-founderof Silvair, a company which enablesmanufacturers of LEDs, drivers, switches andsensors to make a smooth transition into theInternet of Things. As the CTO, Szymon is takingcare of the product roadmap, as well as shapingthe long-term technology strategy. He drove thedevelopment of Silvair Mesh, one of the firstproprietary mesh solutions based on BluetoothSmart, and soon became one of the leadingcontributors to the Bluetooth SIG’s Mesh WorkingGroup. Since 2016 Szymon has been chairing theBluetooth Mesh Working Group.

OrganisationSilvair

Silvair is an American company with Polish rootsthat builds software solutions for the Internet ofThings (IoT). Operating on the global market,Silvair is pursuing its strategic goal of becoming aleading supplier of modern technological tools forIoT applications. Currently, the company isfocusing on developing a technology for lightingmanufacturers and providers of intelligent buildingmanagement systems. It offers the Silvair LightingFirmware, as well as digital tools based on theBluetooth mesh standard that allow for buildingthe Silvair Platform.

Silvair’s product range includes firmware for smartlighting components manufactured by third-partycompanies. In addition, the company providestools for configuring, controlling and managing thelighting infrastructure, as well as tools foranalyzing and using the data collected by sensorsinstalled as part of lighting systems:

Silvair Firmware is software that can be installedby lighting manufacturers in their components. Itallows devices to wirelessly communicate witheach other. This in turn enables autonomouscontrol over the intensity and color temperature oflight, while also making it possible to collect dataon the ways the space and devices themselvesare used. Silvair’s firmware is offered tomanufacturers of lighting components, includingdrivers, sensors, fixture controllers, switches, etc.

Silvair Platform is a technology and service

platform developed by the company. It includesdigital tools for commissioning, configuring andmanaging smart lighting networks, as well as aninfrastructure enabling the company to provide arange of innovative services, e.g. the ones relatedto property management. These services will beassociated with the collection, processing andvisualization of data generated by sensor-drivensmart lighting networks. They will be providedremotely through a dedicated website andcloud-based solutions.


User Centric Lighting – Studies & Surveys

38 A European Workplace Lighting Surveyby Ganix LASA, PhD, Mondragon University

40 An Interactive Approach to the Optimization of Public Space Lighting with Resident’s Participationby Boris A. PORTNOV, PhD, DSc, Prof., University of Haifa

44 Dynamic LED Public Lighting Solutions: Citizen Perceptions and Evaluationsby Nicolas HOUEL, PhD Student, AAU Laboratory


A European Workplace LightingSurvey

Ganix LASA, PhDResearcherMondragon UniversityLoramendi Kalea, 420500 Arrasate - MondragónSpain

Co-Author(s): Maitane Mazmela, Markus Canazei, Siegmund Staggl, Katrin Tanzer and Wilfried Pohl

AbstractEuropean lighting industry is moving towards amore sustainable and competitive future.Companies are harnessing innovativetechnologies and new materials to design newsolutions, trying to improve human’s everyday lifeand wellbeing. However, one of the key aspectsinto this new context is to integrate the UserCentred Design approach into the designprocesses. Including the user perspective into thedesign process, will ensure that innovative lightingdesigns fulfil the real needs of users. As part ofthe European Commission’s Horizon 2020 workprogramme, the REPRO-LIGHT project(Re-usable and re-configurable parts forsustainable LED based lighting systems) aspiresto successfully initiate a transformation in theEuropean LED lighting industry, by creating the‘Luminaire of the Future’. In this Europeanproject, a specific step-by-step design process isfollowed, providing a different set of tools for eachdesign phase that enable user participation duringthe whole process. The lecture presents how theREPRO-LIGHT project is taking into account theuser needs and requirements to set the future ofluminaire. On the one hand, how the project hasimplemented a co-creation strategy is shown,based on 5 different user workshops with differentstakeholders. On other hand, the results of alighting related questionnaire are presented.REPRO-LIGHT has carried out a survey wheremore than 1100 people across Europe rated theirwork lighting environment and were asked toconsider their working environment’s lighting andwhat changes they would like to see that could

improve their productivity, mood, andperformance. The obtained result from thequestionnaire clearly indicated that lighting inworking environments, both industrial spaces andin offices, should be changed and that people arenow ready for the next large steps in lightingtransformation, i.e. personalized lighting.

Author’s CVGanix LASA, PhD

Ganix Lasa is a lecturer and researcher in theDesign Innovation Center (DBZ) of MondragonUniversity (Spain). He obtained his first degree inIndustrial Design and Product DevelopmentEngineering at Mondragon University. He hold anMSc in Design Engineering from PolytechnicUniversity of Valencia (UPV) and PhD degree inUser Experience Evaluation at MondragonUniversity in 2015. Since then, Dr. Lasa iscarrying out several research projects with a UserCentred Design approach, mainly related tointeraction design and product development. Heis author of several scientific articles referringtechnology of interaction design, user experienceand product development.


User Centric Lighting – Studies & Surveys 39

OrganisationMondragon University

Mondragon University (officially in Basque:Mondragon Unibertsitatea, MU) is a non-profitcooperative private university in the BasqueCountry, officially established and recognised in1997, whose primary aim is the transformation ofsociety through the comprehensive education ofpersons and the generation and transfer ofknowledge. It is part of Mondragon Corporationwith whom it shares the values and principleswhich have made it possible to be active agents inthe development of a more just and sustainablesociety. Its main campus is in Mondragón,Gipuzkoa.

Now a days, it has 5500 students, studdingdegrees , master’s and doctoral programs, inaddition, around 6500 professionals update theirknowledge through courses, advanced courses...



An Interactive Approach to theOptimization of Public SpaceLighting with Resident’sParticipation

Boris A. PORTNOV, PhD, DSc, Prof.ProfessorUniversity of HaifaMt.Carmel3498838Israel

Co-Author(s): Inna Nissenbaum, PhD, E&E (Eng) IBN labs ltd CO., Chairman of the Israel Lighting Association) andTammy Trop (PhD, University of Haifa)

AbstractPublic space lighting (PSL) plays a vital role inpromoting wellbeing and personal safety in urbanareas. If insufficient, PSL may adversely affect theperception of comfort and personal safety inurban areas, while, if excessive and misdirected, itmay lead to unnecessary energy waste, increasegreenhouse gas emissions, and posenon-negligible threats to the nocturnalenvironment and human health. At present, PSLis designed according to universal technicalstandards. As a result, little is known whether theoutcome, albeit technically efficient, fully reflectsthe perceptions of illumination quality and comfortby different groups of users in different temporaland urban settings. The main goals of the study,which methodology and preliminary results arediscussed in this paper, are: (1) to develop andtest an interactive user-oriented approach,according to which urban observers use aspecially designed smartphone application toreport their perceptions of PSL attributes; (2) toreveal users’ perceptions of PSL’s quality andcomfort in different urban settings; (3) to identifyhow locational, temporal, and individual factorsinfluence users’ PSL perceptions; (4) to compareusers’ perceptions of PSL quality and comfort with

objective field measurements of light attributes,and (5) to develop an empirical model, linkingmeasured PSL’s attributes with its perceivedquality and comfort. The study, jointly funded byIsrael Science Foundation, Israel Ministry ofScience and Technology and Ministry of Scienceand Technology of the PR of China, is carried outin four phases: 1) identification of suitable surveysites, using night-time satellite images, localdetailed planning schemes and field observations;2) in-situ instrumental measurements of PSLattributes in the selected sites; 3) structuredassessments of different parameters of PSL byspecially trained groups of observers usinginteractive internet technologies; and, 4)conjoining field measurements and users’evaluations into an empirical model, linking themeasured and perceived attributes of PSL. Theproject aims to contribute to better understandingof the way in which PSL attributes translate intousers’ perceptions of illumination quality andcomfort, and the factors influencing theseperceptions. The empirical model of the perceivedPSL quality, which the study aims to develop, canbe instrumental in redesigning PSL in a smart andsustainable manner, which would tailor outdoor



lighting design to users’ needs, while improvingservice quality and urban residents’ satisfactions.

Author’s CVProf. Portnov holds PhD (1st Russian DoctoralDegree) in Urban and Regional Planning from theCentral Research Institute of Town planning(1987; Moscow, USSR) and D.Sc. (2nd Russiandoctoral degree) in Urban and Regional Planningfrom the Moscow Architectural Institute (1994).Since 2012, he holds the position of a FullProfessor at the Department of NaturalResources and Environmental Management,University of Haifa (tenured). Prof. Portnov chairsthe Departmental PhD Committee. Researchinterest of Prof. Portnov include GeographicInformation Systems (GIS); Urban and RegionalPlanning; Real Estate Valuation andManagement; Spatial data analysis, PopulationGeography, and Environmental Epidemiology.Prof. Portnov authored or edited (alone and withothers) 7 books and 160+ refereed articles andbook chapters.

Research Interests

Geographic information systems, Urban Planning,Population Geography, Real estate valuation andmanagement

Research topics

Environmental risk assessment Geographicinformation systems in environmental studiesGreen building Modifying behavior for energysaving Environmental and health effects of lightpollution

Teaching

Geographic information systems (GIS) inenvironmental research 3-Dimentionalenvironmental modelling Geo-statistical analysisUrban environment Sustainable developmentRegional and business location

Research in progress

2018-2021 Modelling the Perceived Quality ofPublic Space Lighting: An InteractiveUser-Oriented Approach (PI) – Funded by IsraelScience Foundation (ISF) (with T. Trop)

2019-2020, Optimizing Public Space Lighting inCities with Residents’ Participation :A Steptowards Smart and Sustainable Urban Areas inChina and Israel – Funded jointly by IsraelMinistry of Science and Technology and Ministryof Science and Technology of PR of China, PI(Co-PIs: T.Trop (UoH), Prof. Ming Liu (DalianUniversity of Technology, PRC) and Prof. WeiliJiao, Institute of Remote Sensing and DigitalEarth, Chinese Academy of Sciences, PRC) .

OrganisationUniversity of Haifa

Over 18,000 students from a wide range of ethnicand socio-economic backgrounds are enrolled atthe University of Haifa, the largest comprehensiveresearch university in northern Israel, and themost pluralistic institution of higher education inthe country. Founded in 1963, the University ofHaifa received full academic accreditation in 1972and, since then, has created and developed aworld-class academic institution that is dedicatedto academic and research excellence. Through anaccelerated growth strategy, the University hasestablished Israel’s first “Multiversity” – amulti-campus institution that promotes extensiveinterdisciplinary studies and partnerships. TheMultiversity is designed improve access to highereducation in the North, better prepare students fora dynamic job market and serve as a catalyst foreconomic expansion and strengthening Israel’snorthern region.

As a thriving academic center, the Universitycomprises six faculties, 56 departments, eightschools and 69 research centers and institutes.The University has gained an internationalreputation in a variety of fields, including publichealth, security studies, holocaust research,cancer research, neurosciences, bioinformatics,marine sciences, education and epigenetics. TheUniversity also offers 16 international graduateprograms taught in English language and a StudyAbroad program.

The University’s distinctive mission is to fosteracademic excellence in an atmosphere oftolerance and multiculturalism. Our faculty andstudent population is unique in its composition.Here, Jews, Arabs, Druze, Haredi and secularstudents, new immigrants, and military andsecurity personnel come together to study, teachand learn.



Driven by unusual crossings between fields ofresearch and social responsibility we create anew environment, a better community, and abetter Israeli society.





Dynamic LED Public LightingSolutions: Citizen Perceptions andEvaluations

Nicolas HOUEL, PhD StudentArchitect and Lighting DesignerAAU Laboratory6, quai François Mitterrand44000 NantesFrance

AbstractThe recent arrival of LED lighting technology onthe public lighting market, linked withdevelopments in built-in digital innovations,presents solutions to the current questions askedby managers of street lighting systems about theoperation and renewal of the equipment: in whatway(s) can the energy bill be reduced? Can thelighting system become a way to collect data frompublic space? How can the new lightingtechnologies be perceived by individuals?Simultaneously, some manufacturers aredeveloping products to vary the light intensity inreal-time or in a scheduled way, which isconsidered as relevant to better regulate theenergy consumption. However, within the currentparadigm of static public lighting equipment, thedynamic public lighting technologies raise twoquestions: what perceptions do they trigger in theusers of nocturnal public spaces (Haans & deKort, 2012, Boomsma & Steg, 2014), and, interms of uses and time (Gwiazdzinski, 2014), howcan the relevant territories be identified toimplement this type of technology? In Nantes, theInteractive Data Light experiment tackles thesequestions with an experimental system of tenlights set up under real conditions in public space.Equipped with air-quality, decibel, temperature,humidity, electricity consumption and motionsensors, they aim to study the technical andtechnological ability of a lamp post to captureenvironmental data and measure real energysavings between a traditional light, identified hereas a 150W high pressure sodium lamp, and a

LED light with intensity variation, calibrated in ourcase between 15W (standby mode) and 45W(active mode). Lastly, this project intends to studythe acceptability of dynamic public lighting by theusers, thanks to a series of surveys carried out onthe field. With a questionnaire, the users will givetheir opinion on two aspects: intensity levels(standby and active modes) and variation speedbetween the two intensities (quick or slowincrease, dimming after a long or short time).Technologically, the results of this experimentallowed to identify a series of obstacles on theintegration of sensors in a lamp post: whatsystems to transfer data, what storage, how torepresent the data, for what? Ultimately, theevaluation protocol with citizens allowed to noteperceptions of nocturnal ambiance that arerelative to the different parameters of the light(visibility, feeling of comfort, of safety) andenabled exchanges with them on nocturnalterritories where dynamic systems could berelevant. Furthermore, this allowed for theintegration of the citizen as a proper contributor tothe public lighting renovation process, with hisability to provide data on the uses andtemporalities of the territories he visits. With thiscollaboration, we note the prospect of involvingcitizens in the processes of adapting lightingequipment to real situated nocturnal needs, andwe open the discussion on the repetition of thisevaluation form on a bigger scale.



Author’s CVNicolas HOUEL, PhD Student

Nicolas Houel is an architect and a lightingdesigner. He is currently a researcher innight-time urban studies at CRENAU, whichbelongs to the AAU Laboratory (UMR CNRS1563, Nantes). Since 2014, he has been leadingSkedanoz, a nocturnal cultural mediation project,and has accompanied public and private projectsregarding the study of architectural, urban andlandscape lighting. He also carries outexperiments and evaluation projects in terms ofpublic lighting (Interactive Data Light, 2016 –2018). After assuming the position of teacher instudio and in digital representation tools (ESMANantes, 2014 – 2017), he is now involved in theMaster’s curriculum at the Graduate School ofArchitecture of Nantes, where he is in charge ofclasses on lighting culture. He has been workingalong with the city of Nantes since 2017, to helpthem with the implementation of their Publiclighting equipment scheme, considered as amanagement and renovation tool for the lightingstock of the metropolis’ 24 municipalities.

OrganisationAAU Laboratory

The Urban Architecture Nantes Research Centre(CRENAU) is the AAU Laboratory’s team based inNantes. CRENAU was created in January 2015from the merger of two laboratories at ENSANantes:

CERMA, Research methodology in ArchitectureCentre, created in 1971 and specialised in thebuilt environment’s methodological and numericalapproaches. LAUA, Languages, Urban Actions,Alterities laboratory, founded in 1991 andspecialised in the urban building and forms ofurbanities’ socio-ethnographic approaches.Members of GERSA, (Stage Design inArchitecture Research and Study Group), alsojoined CRENAU.

Research at CRENAU is part of the AAULaboratory’s scientific mission. In this context, itincludes numerous themes related to architecturaland urban ambiances, models, public territorialaction instruments and policies, virtual andenhanced reality, maps and sensitiverepresentations of the built environment, cities’adaptability to climate change, etc.

Through its history and composition, CRENAUhas deployed expertise in a wide range of fields:architecture, urban planning and urbanism,sociology, anthropology, computer science,physics, history and arts. It welcomes numerousPhD students in these fields of study.

CRENAU members belong to the institutionssupervising the AAU Laboratory i.e. ENSANantes, Centrale Nantes, CNRS as well as ENSAParis-Malaquais and Nantes School of Art inagreement with ENSA Nantes.


Human Centric Lighting I–III

48 Critical Opinion on the Current Development Status of HCL Solutionsby Wilfried POHL, Mag, Bartenbach

50 Lighting Beyond Light - What Should We Expect from Light in the Future and What do We Have toTrade in?by Alexander WILM, DI, OSRAM Opto Semiconductors

52 Impact of Solid-State Lighting on Health and Safetyby James Norman BARDSLEY, PhD, Bardsley Consulting

54 In Search of The Perfect Lightby Stephen MASON, Dr., Sustainable Eye Health Pty Ltd

56 Energy and Quality Metrics in Melanopic Stimulus Evaluation for HCLby Octavio Luis PEREZ, PhD, Icahn School of Medicine at Mount Sinai Hospital NYC

58 Current State of Knowledge and the Levels of Various Non-visual Lighting Effectsby Lisa POHL, Dr. med., Bartenbach

60 Critical Evaluation of Adverse Effects of LED Light Sourcesby Markus CANAZEI, PhD, Bartenbach

62 Photobiomodulation: A New Dimension to Human Centric Lightingby Martijn DEKKER, Dr., Seaborough

64 Human Centric Lighting for Top Performance – Learnings from Light Stimulation of World ClassAthletesby Andreas Wojtysiak, Dr., OSRAM


Critical Opinion on the CurrentDevelopment Status of HCLSolutions

Wilfried POHL, MagDirector ResearchBartenbachRinner Strasse 146071 AldransAustria

AbstractThe digital light source LED allows the efficientgeneration of dynamic light spectra and luminousintensity distributions and the implementation ofnew lighting designs for special visual, biologicaland emotional needs. The integration of additionalsensor-technologies and the implementation ofcomplex control algorithms will support thetransformation of current lighting systems intosmart and adaptive lighting solutions that willinstantaneously react to environmental alterationsand individual desires (personalized lighting).

Bartenbach is designing and realizing HCLinstallations for different applications in his dailybusiness, thus gaining a lot of practicalexperience. But Bartenbach is also involved inresearch projects where the psychophysiologicaland health effects of such illuminations areinvestigated with scientific methods. Aninterdisciplinary team in the fields of medicine,perceptional psychology, physics and techniquesis dealing with the basics of HCL (e.g. melatoninsuppression, etc.) and is evaluating the scientificresilience.

On the basis of these many years of experience, acritical opinion on the current development statusof HCL lighting solutions will be presented,covering scientific, photometric and lightingdesign aspects.

Answers to the following questions will be

presented: • Who needs HCL lighting solutions?• Which non-visual effects are scientificallyproven today? • How well can non-visual effectsbe predicted? • Which lighting designs representHCL lighting solutions today? • Whatrecommendations can we make today for anevidence-based HCL lighting solution?

Author’s CVWilfried POHL, Mag

Studied mathematics and physics, started 1985 atBartenbach, since 1998 Member of ManagingBoard and Director Research, dealing withartificial lighting, daylighting and building physics,visual perception and light and health. Leader ofvarious international planning and R&D-projectsin these fields. Lecturer at different universities,university teaching position at the LightingAcademy Bartenbach (a branch of the Universityof Innsbruck), several scientific papers andpresentations, participation in internationaladvisory boards.

Papers/Presentations: • Spectral Quality -Einfluss des Spektrums auf den Menschen;LICHT 2014, Den Haag • From Digital Lighting toSmart Lighting Smart Lighting; Smart LightingConference, Barcelona 2014 • Lighting with LEDs– More than just Illuminating Objects; LpR50, July


Human Centric Lighting I–III 49

2015 • Licht und Technologie: Licht im Wandel;Architekturjournal wettbewerbe, Juli 2015 • Lightand Health – newest research findings and itsapplications; LpS 2016 Bregenz •Energieeffizienz und Helligkeitseindruck imVerkauf; Licht 2016 Karlsruhe • BiodynamischeBeleuchtung – Anwendungen undwissenschaftlicher Hintergrund; Licht 2016Karlsruhe • HCL – Just a phrase?; Tagung SmartLighting 2017, Hamburg • New daylight solutionsfor energy and health; Tagung Luxeuropa 2017Ljubljana • LED-Beleuchtung – Demonstrationder Chancen und Risiken; Kongress lightingtechnology, Essen 2017 • Trends in Lighting –Demo Quality; Kongress LpS 2017 Bregenz

OrganisationBartenbach

"Not from the luminaire to the overall ambiencebut from the desired effect to the lighting conceptusing the findings in perception psychology. Andthen applying physics and photometry to arrive atthe optimal luminaire type respectively lightingsystem." Prof. Dr. h.c. Ing. Christian Bartenbach



Lighting Beyond Light - WhatShould We Expect from Light in theFuture and What do We Have toTrade in?

Alexander WILM, DISenior Key ExpertOSRAM Opto SemiconductorsLeibnizstrasse 493055 RegensburgGermany

AbstractAround 10 years ago the LED as a standard lightsource for general lighting application was stillquestionable. During the last decade, the strongfocus on efficacy increase and cost reduction, ledto a status where all new developments are basedon the semiconductor light sources. The highefficacies and low cost position opened thediscussions of light quality: The color renderinghas been improved significantly, we have humancentric lighting and LEDs with light similar tosunlight are available. So what should we expectnext from light for lighting? Very similar to thecolor rendering discussion, the scientific world isalready very active for decades to study theimpact of the spectral composition of light onhuman beings. There are undesirable but alsobeneficial effects known and documented. Now isthe time to evaluate these findings, understandthe impact on important metrics of the generallighting market: Efficacy and Cost and developnew systems based on the latest technologies oflight generation with the target of providing abetter light with less unwanted side effects. Thispaper will summarize and discuss several positiveand negative effects of certain spectralcompositions in respect to human beings. It willdescribe possible technological solutions andprovide a comparison in respect of efficacy andeffort. This could form a basis for further

discussions on better light with additionalconsiderations and aspects beyond the knownlight quality parameters.

LESSONS LEARNED • Learn about the impact ofdifferent spectral regions for human beings •Understand the possible positive and negativeinfluence caused by different spectralcompositions • Learn about the technologies tocreate and provide radiation in the respectivewavelength ranges • Understand the potentialsand challenges for different spectral compositionsin their generation and combination



Author’s CVAlexander WILM, DI

Alexander Wilm is Senior Key Expert forillumination in the GL application engineeringdepartment at OSRAM Opto Semiconductors inRegensburg. He joined OSRAM OS in 2004 aftergraduating from the University of AppliedSciences in Regensburg with a diploma inMechatronic Engineering. In his career he startedwith optics and system design for LEDheadlamps, flash lights and projectors. After beingstationed in Singapore for 2 years he works asApplication Engineer and Key Expert for SSLproducts and light quality. He is active in severalexpert associations for general lighting and drivingthe innovation in solid state lighting.

OrganisationOSRAM Opto Semiconductors

Osram Opto Semiconductors is one of the guidinglights both in technological development and inthe manufacture of high-quality products. Fornearly four decades, the high-tech company hasbeen investing in research and developing newproducts on the technological cutting edge -enabling Osram Opto Semiconductors to setinternational standards in the fields of illumination,visualization and sensor technology. Theexpertise of Osram Opto Semiconductors extendsfrom basic semiconductor technologies toindividual customer applications. The companyproduces top-quality solutions in various fieldssuch as sensor technology and laser systems.The product portfolio comprises high-performancelight-emitting diodes (LEDs) – e.g. for automotiveand general lighting applications – miniature LEDsfor mobile devices, as well as infrared diodes(IRED), semiconductor lasers and detectors. Theglobal player accords top priority to offering itscustomers professional and comprehensivesupport based on many years of well-foundedexpertise. With a focus on promoting futuredevelopment, the company has been involved inhigh-caliber technology partnerships for manyyears, collaborating closely with partners from thecommercial sector as well as with universities andcolleges. Additionally, the high priority attached toongoing internal development has spawned manyinnovations and optimized the product portfolio.All this makes Osram Opto Semiconductors oneof the key players in the global opto-electronicsemiconductor market today.



Impact of Solid-State Lighting onHealth and Safety

James Norman BARDSLEY, PhDPresidentBardsley ConsultingSan Francisco BayCaliforniaUSA

AbstractDiscussions of the impact of SSL on humanhealth have often been focused on the IntrinsicallyPhotoreceptive Retinal Ganglion Cells and theimpact of blue light on the circadian system.Although many papers and articles have beenpublished on these effects, there is still a need formore research to guide the development of SSLsystems. The difficulty of performing andinterpreting experiments will be illustrated. Itseems likely that premature recommendationsbased on incomplete analyses by prestigiousbodies have led to loss of life. This presentationwill discuss the potential positive effects that couldaccrue from improved lighting and will focus onissues other than the circadian rhythm. Topicscould include: • Eye fatigue and recommendedamelioration o Case studies on myopia fromChina, Australia and elsewhere o Eye fatiguefollowing brain damage • Seasonal AffectiveDisorder • Age-related Macular Degeneration oPhoto-oxidative damage • Accident reduction onstreets and roads o Influence of intensity, colorand contrast • Fall reduction for the elderly oCase studies in senior care facilities • Improvedlighting in underground mines o New lamps fromUS • Optimum lighting for medical diagnostics oSkin conditions o Medical displays • Surgicallighting o Theater lighting o Endoscopy •Disinfection using visible light and near UV oPreventing hospital acquired infections • Reducedair pollution – indoors and outdoors o Eliminationof kerosene stoves • Wound healing o OLED andQLED patches • Treatment of neurologicaldysfunction. The choice of topics and the divisionof time will be designed to avoid duplication withother presentations.

Author’s CVJames Norman BARDSLEY, PhD

As President of Bardsley Consulting, Dr. Bardsleyadvises industry, government and academia onflat panel displays, solid-state lighting and energyefficiency, with special emphasis on diffuselighting and organic electronics.

Norman’s current activities are focused upondiffuse lighting applications of OLEDs and LEDs,flexible substrates and printed electronics. Heserves as a technical consultant for the USDepartment of Energy’s Solid State LightingProgram. In this role he is a co-editor of their“R&D Program Plan”, facilitates the OLEDdiscussions at their technical workshops, and actsas an external monitor for R&D projects.

Dr, Bardsley also serves as Chief Analyst for theInternational Solid State Lighting Alliance (ISA),based in Beijing. Between 2013 and 2016, he wasa keynote speaker at the China OLED Summit,the China International Summit on Smart Lightingand at the LED Forum of the Chinese Associationfor the Lighting Industry in Shanghai. His otherinvitations in this period included majorconferences in Austria, Brazil, Germany, India,Korea, Netherlands, the UK and the US. Hiswritten contributions included the technicalsections to the IDTechEx Reports on LED andOLED Lighting in 2013 and 2014.

Until 2006, Norman served as the Director ofDisplay Technology for DisplaySearch. Hisresponsibilities for DisplaySearch included



analysis of all technology aspects of the flat panelindustry, including display design, manufacturingand performance. He wrote monthly reports onflat panel display (FPD) technology in the OLEDEmitter and DisplaySearch Monitor, quarterlyreviews of FPD technology development andannual reports on FPD technology andperformance. More recently, Norman made majorcontributions to the Flexible Display Reports forDisplaySearch and the Flextech Alliance.

Dr. Bardsley was the Director of Roadmaps andStandards at the US Display Consortium (USDC)for ten years. In this capacity, he was responsiblefor monitoring trends, identifying technicalchallenges and uncovering business opportunitiesin the manufacture and application of electronicdisplay technology. The focus of these activitieswas in emerging technologies, such as OLED andelectronic paper displays. As part of his duties,Norman worked with the Electronic DisplayIndustry Research of Korea in the development ofan early version of the Korean National Roadmapfor Flat Panel Displays.

OrganisationBardsley Consulting

To support the development of solid state lightingas a prime example of increased energy efficiencyand to help harness solar power and associatedtechnologies in revitalizing the economies of ruralcommunities in Malawi and elsewhere.



In Search of The Perfect LightStephen MASON, Dr.Managing DirectorSustainable Eye Health Pty Ltd508/437 Bourke St, Surry Hills,NSW 2010Australia

AbstractThe discovery of passing an electric currentthrough a semi-conductor and observing it to emitlight in the early 20th Century began a journey ofdiscovery in physics and engineering to thepresent day where highly efficientlight-emitting-diodes can be processor-controlledand programmed to vary radiance andwavelengths as a function of time. This paperexplores the parameters when considering theoptimal light to support visual and systemichealth, comfort and human performance.

Author’s CVStephen MASON, Dr.

Dr. Mason graduated in Optometry from theUniversity of New South Wales (UNSW) Australiain 1978. In private practice for more than thirtyyears, for the past decade, Dr Mason hasconcentrated his interests on the development ofLED light that offers beneficial effects for healthand visual performance for the human eye andvisuo-sensory system. Dr. Mason has been avisiting lecturer at University of New South Wales,Sydney, Australia, and became a Fellow of theAmerican Academy of Optometry in 1984. DrMason spends the greater part of his time instudying and conferring with colleagues in theLED lighting community to raise awareness of theimportance to the eye health that we adopt bestdesign attributes to illuminate the builtenvironment.

OrganisationSustainable Eye Health Pty Ltd

Sustainable Eye Health Pty Ltd is an Australiancompany committed to the development of newtechnology for the support of eye-health boththroughout life and throughout the world. In thedeveloped and developing world, as populationsbecome more urbanised, our eyes are exposed tonew and emerging threats to long term health. Animmediate threat to our vision globally and amanifestation of this ’urbanisation’, is that over thepast 30-40 years, myopia (’near-sightedness’) hasincreased 300% country to country on average. Insome eastern Asian countries, 80% of high schoolgraduates are myopic along with 95% of universitygraduates. Research conducted by the BrienHolden Vision Institute at the University of NewSouth Wales in Sydney, Australia (2015) revealedthat as current trending stands, by 2050, half theworld’s population will be myopic. For some, thiscan mean blindness in later years of life.Sustainable Eye Health has developed a solution:Lightsafe (patent pending) is a novel form ofprocessor controlled LED illumination, offering asignificant reduction to the risk of myopia bystrategic choices of wavelength, brightness andduration of exposure. Sustainable Eye Health hasalso developed innovative modifications to LEDlighting that removes the risk of potentially longterm retinal damage from ‘high-energy-visible’light (HEV) incorporated in to its Lightsafeproducts. This addresses the so-called ‘blue-lighthazard’ now more commonly being referred to inthe literature as of potential long-term concern foreye health as we switch to LED lighting to saveenergy. HEV is typically found in LED lighting butcan be safely removed to provide the same ‘white



light’ experience we enjoy for indoor illuminationbut without hazardous HEV.



Energy and Quality Metrics inMelanopic Stimulus Evaluation forHCL

Octavio Luis PEREZ, PhDHCL Researcher/ConsultantIcahn School of Medicine at Mount Sinai Hospital NYCOne Gustave L. Levy PlaceBox 1077 NYCUSA

Co-Author(s): Justiniano Aporta, Applied Physics, University of Zaragoza, Spain; Ana Sanchez-Cano, Applied Physics,University of Zaragoza, Spain

AbstractThe estimation of the potential impact of generallighting in human health and wellbeing is achallenging field of science. A great progress hasbeen done in the last 20 years with the discoveryof the ipRGC (intrinsically photosensitive retinalganglion cells), and the proposal of differentfunctions of merit for their action spectra (such asthe WELL Building Standard and the CIES026:2018). These functions are focused on themelanopic stimulus of light sources/fixtures, ratherthan providing an indication of this stimulus in realenvironments. This is the main differencebetween light and lighting, that remains blurred formany stakeholders of the lighting industry. InLpS2017, we proposed a model for the estimationof the melanopic potential of lighting setups, thatwe refined in LpS2018. Our proposal was toevaluate the melanopic potential for lightingconditions at real environments such as theoffice/school workspace (that can be extended forother human environments such as the patientroom at hospitals). We proposed a performancemetric that considers the relationship between thephotopic requirements and the melanopic impactat the eye. We have a dataset for this metric forconventional light sources (such as incandescent,fluorescent and blue pumped LEDs) together withthe stimulus of full spectrum LED sources. We goone step further in our approach taking intoconsideration two relevant factors. The first one is

the energy impact of the melanopic stimulus andhow new approaches have to be considered tobalance, during a whole temporal window (day,week, year), energy consumption against propermelanopic stimulus. It is not anymore aboutlumen/watt, it is about proper lighting for humanhealth and wellbeing, without the constraint ofcurrent energy metrics. Our second contribution isa quality metric for the melanopic stimulus.Having a peak around 480nm, the expectedcontribution of the functions of merit of the ipRGCmight be the same for different spectral powerdistributions (SPD). Together with thequantification of the stimulus, a measure of qualityis critical. These two contributions will provide abroader perspective of real applications of lightingsystems for HCL.



Author’s CVOctavio Luis PEREZ, PhD

Dr. Octavio L. Perez is a passionate professional,researcher and scholar who contributes toexploring, developing and bringing to the realworld the benefits of light and lighting for humanwellbeing and wellness, and ultimately health. Heworks internationally as an independentconsultant, focused in translational research inhuman centric lighting (HCL), more precisely“affective lighting”. Currently developing the HCLbusiness intelligence for LLEDO Lighting inMadrid, Spain, he is also an adjunct researcher atMount Sinai Hospital in NYC, NY, USA. Dr. Perezserves in several international technicalcommittees and he is a WELL Building StandardAccredited Professional.

OrganisationIcahn School of Medicine at Mount SinaiHospital NYC

The Icahn School of Medicine at Mount Sinai is aninternational leader in medical and scientifictraining, biomedical research, and patient care. Itis the medical school for the Mount Sinai HealthSystem, which includes eight hospital campuses,and has more than 5,000 faculty and nearly 2,000students, residents and fellows. Our unwaveringpursuit of intellectual exchange, breakthroughresearch, and multidisciplinary teamwork propelsus ever forward in biomedical discoveries andadvances. We pursue ideas that often challengeconventional wisdom to revolutionize the practiceof medicine and produce dramatically betteroutcomes for patients. We make big, bold bets byinvesting in radical free thinkers and technology atthe cutting edge.



Current State of Knowledge and theLevels of Various Non-visualLighting Effects

Lisa POHL, Dr. med.ResearcherBartenbachRinner Strasse 146071 AldransAustria

AbstractWithout the most original form of light, sunlight,there would be no life on this earth as we know it.The human body has synchronized its functionswith sunlight for thousands of years and used itsenergy; light became a livelihood. Through ourskin as well as via the retina, light acts on ourbody. Light provides visual information andcontributes the synthesis of essential vitamins andmessengers that control and influence numerousorganic systems. Our metabolism and our skeletalsystem are dependent on sufficient sun exposure.Our neuropsychological abilities such asattention, concentration, and alertness adapt tocurrent light exposure. Duration, intensity andspectral composition of our ambient light controlour sleep-wake cycle, mood, and other bodyfunctions.

Light has already conquered several therapeuticdomains. For example, people with skin diseases,newborns with icterus neonatorum as well aspeople with seasonal affective disorder (SAD) arenow benefiting from special light therapies. So, bydeveloping and installing room and ambientlighting, attention must not be paid exclusively tovisual needs. Because of its biologicaleffectiveness, light systems can have bothbeneficial and deleterious effects on humanhealth. With Human Centric Lighting, the industrymeets the growing awareness and knowledge ofnon-visual lighting effects and meets therequirements of a health-promoting room lighting.

In which form can this knowledge on Non ImageForming Light Effects (NIF) be incorporated intothe lighting industry? Which generalrecommendations can be made and whichsubgroups can be classified that benefitparticularly from HCL? The appropriate lightingscheme depends on the time of day and year aswell as the social and individual needs of theindividual or subgroup. Lighting solutions areincreasingly being adapted individually andtailored to subgroups (e.g. shift workers).

This paper aims to provide a deeper insight intothe current state of knowledge and the levels ofvarious non-visual lighting effects as well as theconclusions derived therefrom for lightingconcepts.



Author’s CVLisa POHL, Dr. med.

Post-Graduate Training: 2013- present: In trainingfor specialist doctor in psychiatric medicine. Intraining for professional psychotherapist inpsychoanalytic therapy.

Education: 2013: Graduation as Dr. med. univ.;2012: Final thesis at the Department ofNeurobiology (Neurodegenerative Disease):“Multiple system atrophy in monocygotic twins - acase study”; 2007 – 2013: Medical University ofInnsbruck; 1999 – 2007: GymnasiumMeinhardinum Stams (grammar school); 1996 –1999: VS Silz (elementary school).

Professional Experience: Since 2017: BartenbachResearch: Non-Image-Forming Light Effects;2013 – 2015: Clinic for Psychiatry andPsychotherapy Hall; 2015: University Hospital forInternal Medicine.





Critical Evaluation of AdverseEffects of LED Light Sources

Markus CANAZEI, PhDResearcherBartenbachRinnerstrasse 146071 AldransAustria

Co-Author(s): Pohl Lisa, Pohl Wilfried

AbstractThe discussion about increased adverse effects ofLED light sources occurs today both, in the lightindustry and in the general public. Emotionalreporting in public press contributes significantlyto this broad discourse. The purpose of thepresentation is to give an objective,comprehensive evaluation of adverse light effects,especially LED light.

It is undisputed today that sunlight potentially hasthe greatest risk to human skin and eyes. Inaddition, increased risks result from artificial lightsources with increased ultraviolet and infraredradiation. Such light sources are not used today ingeneral lighting due to their potential photichazards. Light sources, however, that mainly emitvisible radiation and are widely used for lightingmay also have negative effects on humans,especially if they generate high retinal radiationover an extended period of time.

In principle, it is known today that the amount oflight, as well as its rapid temporal variation and thespectral composition of the light, are the decisivephotometric causes for adverse light effects.

To estimate these adverse effects, various hazardmodels are used today. These models have thelight spectrum, light intensity, exposure duration,the distribution of light in the visual field, and thetemporal variation of the light intensity as inputparameters. Furthermore, it is known that thedaytime of light exposure plays a decisive role inthe area of non-visual light effects.

All hazard models have in common that theymake short-term effects predictable. Long-termadverse effects have so far been studiedinsufficiently and are thus largely unknown. Ingeneral, many models assume that naturalavoidance behavior (e.g., blinking, gaze, wearingsunglasses) ensures that potentially dangerouslight sources do not exhibit their potential forlong-term harm. Furthermore, it is known thatspecific groups are at increased risks (e.g.,people with a lack of avoidance behavior, withincreased photosensitivity or with damaged orimmature ocular medium) and therefore needspecial protection.

What special risks do LED bulbs generate?Basically, it can be stated that there is noincreased risk due to the light spectrum of theLED alone. On the other hand, LED light sourcestoday are ubiquitously applied due to their energyefficiency, longevity, good controllability, and smallform factor (see, e.g., displays, children’s toys),but the emitted radiation is often less wellcontrolled (see, e.g., light pollution in nocturnalurban space). Especially with a direct view intothe LED light source (due to its high luminance) orwith a very short distance between the humaneyes and the light source, hazardous effects aremore likely. Finally, it should be noted that thedriving of LEDs (i.e., the rapid temporal variationof the light intensity) may cause negative effects.Currently, apart from directly and immediatelyperceptible effects, hardly any attention is paid to



other, longer-term adverse effects of temporarilymodulated lights.

Author’s CVMarkus CANAZEI, PhD

Dipl.-Ing. MMag. Markus Canazei, MSc., PhD.studied Mathematics, Psychology, Philosophy andEducational Science at the University ofKlagenfurt (Carinthia) and Psychotherapy Scienceat the Donau University in Krems (Lower Austria).He worked as a university lecturer at theUniversity of Klagenfurt, as a family psychologistand psychotherapist with adolescents and drugaddicts and as a biostatistician in the field ofcochlea implant research. Since 2004 he headsthe psychology of perception department atBartenbach and investigates visual, emotionaland health-related effects of light and lighting. In2018, he completed his doctoral studies dealingwith applied non-visual light impact research atthe Department of Psychology, University ofInnsbruck (Austria).





Photobiomodulation: A NewDimension to Human CentricLighting

Martijn DEKKER, Dr.CEOSeaboroughMatrix VII Innovation Center, 3rd Floor, Science Park 1061098 XG AmsterdamThe Netherlands

Co-Author(s): Jürgen Honold

AbstractHuman Centric Lighting is an established directionin General lighting, and many companies buildproducts and services around it. It makes use ofthe interaction between light and photoreceptorsin the retina to ultimately improve humanwellbeing and productivity. The presence in themarket of HCL has encouraged us to look foradditional area’s where human wellbeing can beimproved by light. A scientific field calledPhotobiomodulation (PBM) emerged the lastdecades in medical science and goes by, so far,mostly unnoted by the General Lightingcommunity. It has developed a detailedunderstanding of the interaction between light inthe visible and near-IR spectral range and cells inand below the skin. This presentation aims tobridge this gap between science and lightingcommunity and to show the very interestingpossibilities that emerge to create new value addofferings in General Lighting based on the insightsgenerated in the field of PBM for humanwellbeing. First we summarize the insights andpresent applications of PBM with a focus on themechanisms at the level of the individual cells andtheir “energy” factories, the mitochondria. Thenwe build a central hypothesis on how PBMthrough (selected parts of) the skin, by makinguse of the blood stream, can give rise to (positive)systemic effects in the human body as a whole.From the available literature of the effectiveness of

PBM at the level of the individual cell we deriverequired dosimetry in the context of GeneralLighting and will discuss possible embodiments.

Author’s CVMartijn DEKKER, Dr.

After a PhD in theoretical physics, the author hasjoined Philips in 1993 and contributed to severaldifferent fields such as electron optics,micromagnetism, optical recording, lithographyand personal care products. In 2007 he joined asCTO Lemnis Lighting, a pioneering company forretrofit LED lighting solutions. Between 2013 and2017 he was MD of Carus, a fully automatedGerman manufacturer of LED retrofit lamps. Atpresent he is CEO and CTO of Seaborough, aDutch R&D company that specializes inbreakthrough technology developments inelectronics, materials and applications for LED.

Jürgen Honold

Jürgen feeds as Technical Fellow Seaboroughsadvanced lighting research and development.With an entrepreneurial focus and interdisciplinaryapproach he detects and starts research inseveral fields of interest, such as luminescent



materials and advanced designs and systems. Asrenowned developer of lighting concepts,electronics researcher, and award winningdesigner, Jürgen is considered one of the LEDdesign pioneers par excellence in professionalcircles.

Since 1999 he has lived for the vision of bringingLED light to life, adding numerous inventions tohis name since. He invented the world’s firstminiature torch with white LEDs (1999),fundamental concepts of LED lighting systems forbig brands and as the Founder of the LEDOcompany produced the "bulled", an innovativefamily of designer lamps.

OrganisationSeaborough

Seaborough invents, develops andcommercializes groundbreaking innovations forthe lighting industry. Based in Amsterdam,Seaborough employs an expert team of electricaland lighting engineers, industrial designers,physicists and chemical engineers, and works inclose collaboration with external specialists, eachof them prominent in their field. In addition, thecompany runs a number of long-term researchand development projects in collaboration withworld leading research institutes and universities.

Seaborough develops for its own accountintellectual property rights (IP)-specifically in LEDsystems- that are commercialized throughlicensing, outright sale or contracts with strategicpartners. Some of the concepts and IP aredeveloped in-house through to finished productsand commercialized through dedicated,group-owned, companies. Seaborough ismajority-owned by Momentum Capital, aspecialized private equity firm; is fully financed byshareholder funds, and completely free of bankdebt.



Human Centric Lighting for TopPerformance – Learnings from LightStimulation of World Class Athletes

Andreas Wojtysiak, Dr.Senior Key Expert Light & HealthOSRAMParkring 3385748 GarchingGermany

AbstractProfessional athletes work hard to improve theirphysical and mental and skills. However, when itcomes to competition, they often have to facelocations and timing that have not been chosenbecause of optimum performance conditions, butmore according to e.g. broadcasting needs orglobal partition. The Athletes and their teamspermanently look for strategies to minimize risksof impact on their results and nowadays look veryinterested into the effects of light on humanrhythms and cognition. Osram started tocooperate with the German Ski Team end of 2014in order to find practical solutions for thissomewhat special application, but also in order togain valuable experience for broader applicationin human centric lighting (HCL). Mainly threechallenges in professional sports were tested totackle with light strategies. First use case is theincreasing number of so called night races inalpine skiing. These late evening competitionspose a clear challenge with respect toconcentration and alertness and may result in ahigher risk of accidents. The second use case isthe travel jetlag application. In many world-classsports, intercontinental travel is frequent and thesequence of competitions may well overburdenthe ability of the internal clock to follow thelocation changes without strategic support. And inthe meantime, the well-known jetlag symptomsimpair the athlete’s abilities to perform in trainingand competition. The third application is related tomood impairments in longer training periods innorthern countries with low daylight availabilities.

Even subsyndromal winter blues effects interferewith the motivation needs in the season’spreparation phase and reduce training outcomes.Specific light interventions with mobilesupplemental lighting turned out to be a valuablecountermeasure against these three threats forathlete’s performance. For Osram, the long-termpartnership helped to improve human centriclighting solutions and led to the development ofproducts for individual light exposure. How tobalance between state of the art HCL solutions forgeneral lighting of spaces and individual lightsolutions like innovative light glasses will bediscussed in the presentation.

Author’s CVAndreas Wojtysiak, Dr.

Dr. Andreas Wojtysiak is a Business InnovationManager in INO Lighting Services at OSRAMGmbH. He studied biology and holds a PhD innatural science. He worked in medical andtechnical departments in universities, researchinstitutes, and industry and established as anexpert in effects of new technologies on healthand well-being. He is Osram’s key expert forScience & Applications in Light + Health. He isConvenor of CEN/TC 169/WG 13 and contributesto international and national committees (e.g.ISO, CIE, CEN, DIN, ZVEI, LiTG, VDE).



OrganisationOSRAM

Mobility, Safety & Security, Connection as well asWell-being & Health: these are the central areasin which we tirelessly search for the answers tothe big questions of the 21st century. How are weto feed around 10 billion people on the planet in2050? How does urban living and traffic work if 70percent of people live in cities? How can we saveour vital resources? And how can we ensure dataprotection and access security in a digital world?OSRAM makes a key contribution to resolving theproblems of today. Our products and services willhelp people to see better, communicate better,move better, work and live better, now and in thefuture.

TheNewOSRAM: Our vision is Light for a BetterWorld. To accomplish this, we are embracing ournew mission: OSRAM unlocks the potentials oflight to improve people’s lives. We primarilyperform this in four areas of expertise: Mobility:With light, we make driving easier and safer.Safety & Security: With light, we protect peopleand their data, both online and offline.Connection: With light, we connect people andtechnology to their environments. Health &Well-being: With light, we help improve the healthand well-being of a growing population.


Innovation in Lighting – Process & Realization

68 Virtual Prototyping in the Lighting Product Developmentby Ervand KANDELAKI, Dr., CADFEM

70 Mass Personalization and Lightingby Daniel Neves PIMENTA, DI, Fraunhofer IBP

72 Complete Luminaire Development Workflow and Practical Results for Tunnel Lightingby Lorenzo TREVISANELLO, PhD, Arianna


Virtual Prototyping in the LightingProduct Development

Ervand KANDELAKI, Dr.Business Development ManagerCADFEMMarktplatz 285567 GrafingGermany

AbstractProduct development in the area of optics is oftenbound to manifold requirements and detailedvalidation. Multiple iterations in the productrefinement loop lead to increasing cost andduration on the way to the desired solution.However, optical simulation allows for overcomingthis hurdle by the means of virtual prototyping. Inthis presentation, I will illustrate this concept withthe specific focus on lighting applications.

The workflow starts with the light design. Aparticular choice of the spatial light distributionimplies specific luminous flux values. Those aretranslated into the setup of luminaires, with theluminaires’ positioning and number beingevaluated using the simulation software.

Subsequently, the desired setup is engineereddown to the level of the required optical shapegeometry (such as reflectors and lenses), e.g.using CAD tools. This step can be highlyautomated using the parametric features of thecorresponding geometry software. Thephotometry data obtained thereafter is evaluatedwith respect to the initial target values as well asthe industry standards. In some cases, it may beimportant to perform additional analysis stepsspecific to human vision. Those can include glareor color uniformity analysis.

Remarkably, the virtual analysis of the lightingsetup attains its striking significance by the virtueof consistent use of accurate optical description ofall relevant materials. This includes both the bulkand the surface properties and complements thedetailed physical modeling of the sources.Eventually, this also enables the physics-based

rendering of the lighting design, a shortcut toprovide an insight to the customer, with no realprototype required.

Author’s CVErvand KANDELAKI, Dr.

Since 12/2018

Business Development Manager, CADFEMGmbH, Grafing, Germany

11/2015 - 11/2018, Postdoctoral Researcher,Niels Bohr Institute, University of Copenhagen

04/2009 - 10/2015, Research Assistant,Ruhr-Universität Bochum, Germany

04/2009 - 11/2014, Ruhr-Universität Bochum,Theoretical Condensed Matter Physics, PhD

10/2003 - 11/2008,Friedrich-Alexander-UniversitätErlangen-Nürnberg, Theoretical CondensedMatter Physics, Diploma


Innovation in Lighting – Process & Realization 69

OrganisationCADFEM

CADFEM offers a complete range of CAEsoftware and hardware from leading suppliers -from individual components to customized andcomplete solutions, ready for immediate use.

Engineering Simulation opens up a huge range ofpossibilities. Since CAE-simulation requires morethan just software, CADFEM supplies all the toolswhich are critical for success in simulation fromone source. Leading software and IT-solutions,support, consultancy as well as Transfer ofknow-how.

Founded in 1985, CADFEM is one of the pioneersof numerical simulation based on the FiniteElement Method (FEM). CADFEM is one of thelargest European suppliers of Computer-AidedEngineering (CAE). We work closely with ANSYS,Inc., a worldwide leading provider ofCAE-software. CADFEM is the ANSYS EliteChannel Partner in Germany, Austria andSwitzerland.

Through CADFEM International, our Products,Services, and Know-how are also provided bylocal CADFEM companies worldwide: the CzechRepublic, Slovakia, Poland, Great Britain, Ireland,Russia, India, China, the United States and NorthAfrica. This helps us supporting our globalcustomers with local companies and expertise.



Mass Personalization and Lighting

Daniel Neves PIMENTA, DIResearcherFraunhofer IBPNobelstraße 1270569 StuttgartGermany

Abstract»Mass Personalization« involves thecomprehensive reorientation of product creation,from building a holistic understanding of the userto seamless implementation in personalizedproduct and service innovation at a cost close tomass production.

Health, housing and mobility are basic humanneeds. Satisfying these needs with personalized,customized products opens up a great futurepotential for the manufacturing industries andcompletely new, closely interlinked opportunitiesfor the entire society. Starting with the user and itsreal needs, thinking of potentials for marketing,sales, planning, production, distribution, logisticsand product development, and including politicsand regulation there are many fields to beobserved and implemented to create value for theindustry, but also for small and mediumentrepreneurs. Against this background, theFraunhofer-Gesellschaft launched the "MassPersonalization" performance center in Stuttgart(Fraunhofer-IAO, IBP, IGB, IPA) in May 2018 incollaboration with the University of Stuttgart andwith the support of the state ofBaden-Württemberg. The contribution to the LPS2019 in Bregenz focuses on user-centereddevelopment of lighting solutions and services. Itwill show how the industry and manufacturers cansucceed with the support of new technologieswhen it comes to user integration, usingAugmented Reality (VR, AR, MR), user profilesand artificial intelligence. Innovative productionmethods, like additives, lasers and new innovationmodels and services (organization, processes,IoT, SmartHome ...) to focus the entire valuechain on people and individual user’s needs. Theconstraints that have grown over the decades andhave been imposed by industrial mass production

and ERP systems should be reduced or servepeople rather than the other way round. Thedigital transformation is not at the beginninganymore, we want to contribute that the lightingindustry makes use of the potential in the contextof personalization in order to continue with abright future.

Author’s CVDaniel Neves PIMENTA, DI

After studying carpentry and interior design,Daniel Neves Pimenta gained experience atBehnisch Architekten with sophisticatedarchitectural projects, including the "Haus imHaus", the world’s first LED illuminated officebuilding.

Fascinated by the potential of LED, he worked forNimbus as a developer, and subsequently asdevelopment manager, until he took overdevelopment management at XAL in Graz. After abrief stop at Georg Bechter Licht in Vorarlberg,the Stuttgart born Portuguese returned to hisSwabian roots to research the future of thelighting industry and Mass Personalization at theFraunhofer Institute for Building Physics IBP(Stuttgart).



OrganisationFraunhofer IBP

The application of building physics principles isthe foundation of the research and developmentwork of the Fraunhofer Institute for BuildingPhysics IBP. In addition to classical buildingphysics topics such as acoustics, energyefficiency, indoor climate, hygiene and sensortechnology, recycling of building materials andhygrothermics, the institute also conductsresearch on a wide range of projects of high socialrelevance. For example, it is a matter of integrallydesigning schools or workspaces, making flyingmore environmentally friendly or sounding out theenergy potential of entire cities. Further focalpoints are the analysis of products, processes andservices from an ecological, economic, social andtechnical point of view and their holistic balancing.

Efficient laboratories and testing facilities as wellas the largest known open-air test site at theHolzkirchen site make complex building physicsinvestigations possible. Modern laboratorymeasurement technology and calculationmethods optimize building products for practicaluse. Investigations in model rooms, in the testfield and at the completed object serve thebuilding physics testing of components andcomplete systems for the new building as well asfor the renovation case.

Building physics findings are not only incorporatedinto buildings and construction elements; theyalso inspire developments in plant engineeringand extend the application of building physicscompetences to neighbouring fields of theautomotive and aviation industries. At the sametime the connection to the regional industry offersa maximum of presence of the respectiveprofessional competence.

The Fraunhofer IBP is a "building authorityrecognized body" for testing, monitoring andcertification of construction products and types inGermany and Europe. Four testing laboratories ofthe institute have the flexible accreditationaccording to DIN EN/ISO/IEC 17025 of theDeutsche Akkreditierungsstelle GmbH (DAkkS).This entitles them to develop new test methods orto modify existing ones. The accreditedcertification body is an independent unit within theFraunhofer IBP and carries out monitoring andcertification activities for various constructionproducts within the framework of the state buildingregulations and the Construction Products Act or

the Construction Products Ordinance. Thisapplies to products in the fields of windows,thermal insulation, fireplaces and exhaustsystems.



Complete Luminaire DevelopmentWorkflow and Practical Results forTunnel Lighting

Lorenzo TREVISANELLO, PhDHead of R&DAriannaVia dell’industria 1435020 - BrugineItaly

AbstractSolid State Lighting already made his debut invehicular tunnel application since some years.The replacement of older light sourcetechnologies like HPS or MH lamps with LED isattractive due to its lower Total Cost of Ownership(TCO), related to higher efficacy and reliability.Focusing on the European market, while wealready attended to a massive replacement of thenight-time lighting (the inner zone of the tunnel),the day-time lighting (or entrance zone) made byLEDs has been starting only in recent times. Thereason of this slower adoption process can bemainly ascribed to the complexity of designinghigh power LED luminaire with better performanceand lower costs than a traditional luminaire. Onthe other hand, improving the performance forentrance lighting luminaire can be really a benefitfor the stakeholders and the end user. From aTCO point of view, it is important to underline thatthe power consumption for entrance lighting in anaverage 1km long tunnel is up to 82% on the totalpower consumption of the tunnel. On theend-user side, it is widely recognized that asmooth luminance variation entering the tunnel,together with a good uniformity and precise glarecontrol can only enhance the perceived andeffective safety of the driver. The only way to winthis challenge was to completely change theapproach of day-time lighting, thanks to theleverages that the new technology gave us. Thefocus of this proceeding is to show which is theimpact of a complete luminaire developmentworkflow on the TCO and safety side, both

working on optical components and on systemdesign, and to demonstrate that the synergybetween these two parts of the design processcan enhance the result. Starting from acomponent prospective, we investigated thebenefits of having a small light source combinedwith a reflector-based optics. Given a typicaltunnel scenario, we found out the best trade-offbetween the different requirements of theapplication (illuminance, uniformity and glare) bymeans of parametric ray-tracing simulation,always targeting the higher optical efficacy of theluminaire. Then, from the application stand point,the light distribution obtained by tailored opticaldesign is used in lighting design, targeting theentrance luminance curve and acting on luminaireflux, position and tilting/rotation. An additionaliteration through the development chain is thanperformed in case some room of improvement ofthe results can be achieved. Finally, in order tovalidate the model, we made luminancemeasurement of the installation, before and afterthe relamping, comparing the results. The casestudies are discussed, giving evidence to thedevelopment process proposed.



Author’s CVLorenzo TREVISANELLO, PhD

Lorenzo Trevisanello received his Ph.D. inElectronics and Telecommunication at the Univ.Of Padova (Italy) in 2009, working on reliability ofGaN LEDs. Then he has been working in theR&D Dept. of a big lighting multinational. Since2014 he’s the head of R&D dept. of ARIANNASPA, an Italian company specialized in design ofluminaires for road, tunnel and sport lighting.

OrganisationArianna

Arianna S.p.A. is a company specialising in thedesign and manufacture of LED lighting systemsthat feature an international patent on totalreflection. Founded in 2009 by Alberto GiovanniGerli, the company’s CEO, Arianna joined theCarel Group in 2012. In 2014 Arianna wasrecognised as an innovative start-up. Theinternational patent on total reflection hasrevolutionised the optical principle of diffusion intraditional lighting. This system consists of aninternal reflector that collects and combines thelight emissions, and then casts them uniformlyonto the ground. Tangible results are obtained interms of energy savings and visual comfort. Thetotal reflection patent has been recognised by theUnited States Patent and Trademark Office,making it applicable also in the United States.Technology, innovation and energy savings arethe guidelines that underlie Arianna’s operationsand growth. The company’s research is the basisfor the development of products that increasinglymeet customer demands, following an approachfocused on continual improvement. Certificationsand awards received guarantee the quality of thecompany’s work and the reliability of the productsdeveloped for public and industrial LED lighting.The first products developed by Arianna weredesigned for public lighting. Patented andinnovative streetlights for country and city roads,bike paths, parks and gardens, and car parks. Aswell as floodlights for roundabouts and tunnels,which maximise efficiency and energy savings.Following Carel’s acquisition of a stake in thecompany, Arianna has designed a line of productsfor professional indoor lighting: large retail areas,stores, background and accent lighting forsupermarkets.


Light Sources I–IV

76 LED Innovations for the Improvement of HCL Luminairesby Menno SCHAKEL, Nichia

78 Value and Opportunities from Integrated LED Matrix Solutionsby Ingolf SISCHKA, Lumileds

80 GaN-Substrate LEDs: Introduction nPolaby Hong Jae JUNG, Dr., Seoul Semiconductor

82 Towards New Generations of Lighting and Display: Micro-LEDsby Hani KANAAN, Dr., Cea Leti

84 Degradation of Green High-Power LEDs - Influence on Color Stability of Multi-Channel Luminairesby Alexander HERZOG, MSc, TU Darmstadt

86 LED Spectrum Optimization for Improvement of Human Performances and PsychophysiologicalResponsesby Makoto OGAWARA, Nichia Europe B.V.

88 Wafer Integrated Chip on PCBby Marc JUAREZ, Seoul Semiconductor

90 Synergy Between Display and Lighting Technologiesby James Norman BARDSLEY, Dr., Bardsley Consulting

92 Case Studies of Lighting Applications Implementing High Luminance Laser Light Sourcesby Julian A. CAREY, SLD Laser

94 A New Method of Spectral Tuning LED With High Color Qualityby Daniel HAN, Beijing Yuji International


LED Innovations for theImprovement of HCL Luminaires

Menno SCHAKELTechnical Marketing EngineerNichiaWesterbachstrasse 2861476 KronbergGermany

Co-Author(s): Xavier Denis, Noichi Takuya

AbstractHuman Centric Lighting (HCL) is currently one ofthe primary drivers of lighting innovations.Tuneable (white) solutions play a major role in thisinnovation. Whether it is to simulate the changingcolour temperature of sunlight during the day, orto let the user pick their own preferred light, thecolour changing aspect of the light is at the heartof it. The conventional way to achieve a tuneablewhite solution is to use separate light sources ofdifferent colour-temperatures. In this paper we willintroduce new innovations which support HCLluminaire design by having the tuneable whitesolution in one light emitting surface (LES).Having one LES, but still two separate controllablechannels, allows for freedom of design ofluminaires previously difficult to achieve withtuneable white. For example, having a single LESreduces the need for additional optics or diffuserswhile still maintaining a good (colour-)homogeneity. We have achieved single LEStuneable white LED’s. The (Chip-on-Board) CoBstyle package enables tuneable white spotsolutions which before were only realisable usingDMC (Direct Mountable Chip) or CSP (Chip StylePackage) solutions. Having a small tuneable LESavailable in a ready-made solution, without havingto make a peak-design PCB, will enable luminairemanufacturers to much easier expand theirtuneable white portfolio and hopefully inspiremany new designs.

Author’s CVMenno SCHAKEL

As a Technical Marketing Engineer for Nichia,Menno Schakel focuses on customer’s technicalrequirements, bridging the gap between thecustomer and Nichia’s product research anddevelopment. Menno has worked as an opticalmeasurement specialist at Philips Lighting and aBritish measurement laboratory in his earliercareer. He is also a member of several CIEDivision 2 technical committees and currentlyholds the committee chair of TC2-89, developinga measurement method for Temporal LightModulation.

OrganisationNichia

Having "Ever Researching for a Brighter World"as our motto, Nichia has grown in the field ofdevelopment, manufacturing and sales of finechemicals, particularly inorganic luminescentmaterials (phosphors). In the process of thechallenging pursuit of brighter luminescent andlight-emitting materials, we succeeded indeveloping and commercializing the super highbrightness Blue LED in 1993, which greatlyimpressed the world. Since the first introduction ofthe Blue LED in 1993, we succeeded indeveloping the world’s first white LED by


Light Sources I–IV 77

combining yellow phosphor and blue LED,followed by the successful development ofpractical level of blue-violet semiconductor laserfor the first time in the world. The invention ofthese Nitride-based LED and laser diodes causesthe technological innovation of light source in thefield of display, general lighting, automotive,industrial equipment, and medical care &measurement. We hope that Nichia will continueto be a company that will contributes to the worldby evolving its original and unique technologies inthe field of manufacturing.



Value and Opportunities fromIntegrated LED Matrix Solutions

Ingolf SISCHKABusiness Development ManagerLumiledsPhilipsstrasse 852068 AachenGermany

Co-Author(s): Shih Shun Chang, PhD

AbstractThis paper discusses the value and opportunitiesthat integrated LED Matrix solutions can provideto Lighting Manufacturers.

In the past years, LEDs have become morepowerful, and cheaper. Level-1 LED componentsstill require some work to be designed into finalsolutions. Lighting Manufacturers often are caughtin significant work when designing their solutions,means costs and valuable time.

Lumileds has introduced its Matrix program thatprovides solutions for this challenge. IntegratedLED module solutions may consist not only of theLED and the PC board, but also ofdriver-on-board solutions, or connectivity andcontrol blocks, or also integrated optical elements,such as like lens or lens plates, or even integratedLight Guide Plates (LGP).

While driver-on-board solutions or connectivityconsiderations are widely known today, morefreedom in design becomes possible by LGPs.Originally used display technologies now evolvedfurther and optical system efficiencies havereached levels of 80

Powerful in applications, todays ink technologiesenable not only typical lambertian lightdistributions, but also batwing distributions foroutdoor applications. Smart designs can beoptimized towards custom specific Light intensitydistributions/beam patterns. Furthermore, alsothe mechanical interface of LGPs can be

designed to custom needs, from low level partialmodules, all the way up to e.g. IP67 solutions.Most importantly, the number of LEDs is relativelyfree in LGP products, basically is limited by theoverall dimensions for the module. That meansthat more LEDs can be used, driven at lowercurrents, leading not only to easier thermaldesigns, and also to surprisingly high efficacylevels. Dim-to-warm is needed in your solution?That already is a ready-made building block, too.

The presentation will show several Light GuidePlates demonstrators will discuss the benefitstowards quality of light and improvedcharacteristics and leave room to look into thefuture of integrated solutions.



Author’s CVIngolf SISCHKA (Author)

Study: • 1991 – 1996, Technical University ofIlmenau, Mechanical Engineering, specialized inLighting Technology and Mechatronics (Dipl.-Ing.)

Professional Carrier: • 1996 – 2001, ApplicationEngineer Philips Business Center AutomotiveLighting, Aachen, Germany; • 2001 – 2004,Product Manager, Philips Business CenterAutomotive Lighting Plauen, Germany; • 2004 –2009, Product Manager/Marketing Manager/DataManager, Philips Automotive Lighting NorthAmerica, Farmington Hills/Detroit, Michigan, USA;• 2009 – 2014, Business CreationManager/Product and Marketing Manager OLED,Philips Business Center OLED Lighting, Aachen,Germany; • 2015 – today, Technical SolutionsManager EMEA and Business DevelopmentManager Matrix Lumileds, Germany

Shih Shun Chang, Ph.D. (Co-Author)

Study: • 1991 – 1996, Ph.D. University ofColorado Boulder, Electrical Engineering, Thesis:High-temperature GaN/SiC heterojunction bipolartransistor;

Professional Carrier: • 2012 - 2013, Director,Segment Marketing Standards and RetrofitLumileds, USA; • 2013 - 2014, Director, Marketingfor 3535 Mid Power Lumileds, USA; • 2014 -today Director, Global TSM Team Lumileds, USA.

OrganisationLumileds

Technology advancements in lighting, especiallyLED, are creating tremendous opportunities in thefield of light. Lighting solutions today not onlyneed to work and to last, they need to givecustomers a competitive edge. Companiesdeveloping automotive, mobile, IoT andillumination lighting applications require a partnerwho can collaborate with them to push theboundaries of light. With more than 100 years ofinventions and industry firsts, Lumileds is a globallighting solutions company that helps customersaround the world deliver differentiated solutions togain and maintain a competitive edge.

As the inventor of Xenon technology, a pioneer inhalogen lighting and the leader in high

performance LEDs, Lumileds builds innovationinto everything it does. What’s more, quality andreliability are guiding principles for Lumileds. Thecompany demonstrates this by maintaining controlover materials, processes and technologies andby helping customers engineer the best quality oflight for their application to achieve the highestlevels of performance.

The best innovation happens when great mindswork together. Lumileds acts with integrity as atrusted partner to its customers, honoringcommitments, offering deep expertise, and goingthe extra mile — making the world better, safer,more beautiful — with light.



GaN-Substrate LEDs: IntroductionnPola

Hong Jae JUNG, Dr.Field Application EngineerSeoul SemiconductorClaudius-Keller-Strasse 3b81669 MunichGermany

AbstractSeoul Semiconductor’s patented nPolatechnology increases brightness levels 5 timesover existing LEDs. This technology took morethan 10 years to develop and is set torevolutionise the LED lighting industry. nPolastands for Numerous polarities and is related tothe substrate in which the LED is grown. nPola isgrown on a GaN (Gallium nitride) substrate,whereas conventional LEDs use Sapphire orSilicone substrate in which most of the energy isconverted to heat instead of light due to a defectcaused by lattice mismatch. nPola, however, doesnot have the lattice mismatch issue likeconventional LEDs because the GaN epitaxy hasthe same crystalline structure as the GaN growthsubstrate. Furthermore, nPola technologyinvolves the utilization of the one of the nPolanon-polar planes in the GaN crystal, either thea-plane or m-plane, whereas traditional LEDscurrently utilize the polar c-plane GaN epitaxy onSapphire or Silicon. nPola LEDs offer reducedelectrical resistance, increased electricalefficiency, reduction in colour shift with varyingoperating current and smaller device size.

With nPola, Seoul Semiconductor has alreadyimproved the lumen density of LEDs by 5 timesover the conventional LEDs based on equivalentdie surface area and it expects to further improvethis margin to 10 times in future.

Author’s CVHong Jae JUNG, Dr.

OrganisationSeoul Semiconductor

Seoul Semiconductor develops andcommercializes light emitting diodes (LEDs) forautomotive, general illumination, specialty lighting,and backlighting markets. As the fourth-largestLED manufacturer globally, Seoul Semiconductorholds more than 12,000 patents, offers a widerange of technologies, and mass-producesinnovative LED products such as Wicop – asimpler structured package-free LED whichprovides market leading color uniformity, costsavings at the fixture level with high lumen densityand allows design flexibility; Acrich, the world’sfirst high-voltage AC-driven LED technologydeveloped in 2005, includes all AC LED-relatedtechnologies from chip to module and circuitfabrication, as well as multi-junction technology(MJT); and nPola, a new LED product based onGaN-substrate technology that achieves over tentimes the output of conventional LEDs.

CEO Statement: "Life is a drawing which cannotbe erased and redrawn Thank you for yourinterest in Seoul Semiconductor. I believe acompany should help the world, create value forits customers, let employees have pride andensure the stability for its shareholders SeoulSemiconductor started in 1992 with around 30employees in a small space of a commercialbuilding in Bongchen-dong, Seoul. We havegrown exponentially over the years creating manysuccess stories With a dream that we would makeour LEDs lit up even a space station, we built ourcompany Logo and CI(Corporate Identity) in 1994



and have invested in R&D for the last twodecades. Consequently, we also invented theworld’s first AC driven LED technology, “Acrich”,10 times brighter LED “nPola” and package-freeLED technology “WICOP” With thesetechnologies, not forgetting our original intention,we would like to build a clean, healthy andbeautiful world! Moreover, we will do our best tomeet stakeholders’ expectations andrequirements with our products and service andwill abide by national and international standards.Lastly, I want to make a new history of light andwish to be a hope for young generation." CEO,Chung H. Lee



Towards New Generations ofLighting and Display: Micro-LEDs

Hani KANAAN, Dr.Business Development & Lighting Program ManagerCea Leti17 Avenue des Martyrs38054 GrenobleFrance

AbstractIn preparation.

Author’s CVHani KANAAN, Dr.

In preparation.

OrganisationCea Leti

Leti, a technology research institute at CEA Tech,pioneers micro and nanotechnologies, tailoringdifferentiating applicative solutions that ensurecompetitiveness in a wide range of markets. Theinstitute tackles critical challenges such ashealthcare, energy, transport and ICTs. Itsmultidisciplinary teams deliver solid expertise forapplications ranging from sensors to dataprocessing and computing solutions, leveragingworld-class pre-industrialization facilities.

Leti builds long-term relationships with itsindustrial partners - global companies, SMEs andstartups – and actively supports the launch oftechnology startups. Leti is a member of theCarnot Institutes network.

Leti’s main divisions: Architecture and IC design,embedded software, Silicon components, Silicontechnologies, Optics and Photonics, Technologiesfor Biology and Health, Systems and solutionsintegration.

CEA Tech is the technology research branch ofthe French Alternative Energies and AtomicEnergy Commission (CEA), a key player inresearch, development and innovation in defense& security, nuclear energy, technological researchfor industry and fundamental physical and lifesciences. In 2015, Thomson Reuters identifiedCEA as the most innovative research organizationin the world.





Degradation of Green High-PowerLEDs - Influence on Color Stabilityof Multi-Channel Luminaires

Alexander HERZOG, MScResearch AssistantTU DarmstadtKarolinenplatz 564289 DarmstadtGermany

AbstractIn the field of interior lighting, multi-channelluminaires are increasingly being used to presentdaylight-like lighting situations. Depending on theapplication, RGB or RGBW solutions can beapplied. In order to evaluate the color stability ofmulti-channel luminaires, commercially availablered, green, blue and white high-power LEDs weresubmitted to various stress levels. Due to the lowefficiency and the material composition of greenGaN-LEDs, an increased degradation can beobserved. In order to describe the degradationbehavior of green LEDs, the LEDs were aged at 4different junction temperatures. In addition, bydetermining the thermal resistances, aging at 4different currents with a constant junctiontemperature was performed.

Due to the strong efficiency droop of greenGaN-LEDs, the droop was measured over theaging period in order to separate agingmechanisms. The measurement of the spectraldistribution as well as the measurement of the I-Vcharacteristics provide additional informationabout the degradation mechanisms.

The results show a significant degradation of theLEDs with respect to their optical and electricalproperties, which varies depending on the appliedcurrent and selected junction temperature. Usingthe measured efficiency droop and the I-Vcharacteristics, an increase in the non-radiativerecombination can be observed, which initially

mainly affects the range of low operating currents100 uA - 10 mA. As the number of defectsincreases, the range of practice-relevant operatingcurrents is increasingly influenced by degradation,which could be visualized using a semi-logefficiency droop plot. Furthermore, there is nocolor shift of the LEDs during the degradation,only an absolute degradation of the spectrum canbe observed in pulsed measurement. Due to thelatter, a differently pronounced color shift of thesystem can be expected in RGB or RGBWsystems. RGB systems have significantly lowerdegradation tolerances with regard to green LEDsthan RGBW systems in order to guarantee colorstability along the Planckian locus. The ageingresults of the LEDs in combination with asimulation of multi-channel luminaires show that,depending on the operating conditions, visibleshifts in the color coordinates can occur incomparison to the initial state due to thedegradation of green LEDs.



Author’s CVAlexander HERZOG, MSc

Alexander Herzog studied electrical engineeringat TU Darmstadt and received his M.Sc. degree in2015. Since April 2015 he is working as aresearch assistant at the Laboratory of LightingTechnology of the Technische UniversitätDarmstadt finishing his graduation in 2019. Themain research interests are the investigation ofLED degradation and thermal analysis of LEDs.

OrganisationTU Darmstadt

Since its foundation in 1877, the TU Darmstadthas been characterized by a special pioneeringspirit. It is part of our self-image to continuouslycontinue this tradition of innovation. Throughoutstanding achievements in research, teachingand transfer, we open up important scientific fieldsof the future and continually open up newopportunities for shaping society. This makes theTU Darmstadt one of the leading technicaluniversities in Germany with high internationalvisibility and reputation.



LED Spectrum Optimization forImprovement of HumanPerformances andPsychophysiological Responses

Makoto OGAWARASales Assistant ManagerNichia Europe B.V.Thomas R. Malthusstraat 1-3,1066 JR AmsterdamThe Netehrland

Co-Author(s): Kazushige Fujio(Nichia Cooperation, 491 Oka, Kaminaka-Cho, Anan-Shi, TOKUSHIMA 774-8601,JAPAN), Xavier Denis(Nichia Europe B.V.), Ayako Utsumi, Masayoshi Kamijo(Faculty of Textile Scienceand Technology, Shinshu University, Ueda 386-8567, Japan)

AbstractIn recent years, LED luminaires are replacingconventional light sources (e.g. fluorescentlamps) for office and school indoor lighting, wherethe time exposure to LED light is increasing. Ingeneral lighting market, LEDs with color renderingindex (CRI) 80 have been widely adopted.However, to bring solutions for further marketgrowth, LED manufacturers must focus on newlight sources added-values and benefits withcontinuous process of improving LEDperformances such as luminous efficacy. HumanCentric Lighting (HCL) for living and workingneeds new development of LED lighting toimprove human work efficiency without harmingindividual health conditions. By applying its 50+years of advanced phosphor technology, Nichiahas developed an innovative LED which canprovide positive effect on psychophysiologicalresponses, for visibility, workability and eyefatigue, of working individuals. In this paper, wediscuss about the effect of LED light source withdifferent spectral distributions on visual workabilityand eye fatigue based on the results ofpsychophysiological response measurement. Thisachievement would be the first step to propose an

optimal LED light source for commercialization tooffices and educational facilities.

Author’s CVMakoto OGAWARA

Makoto Ogawara is currently Assistant Managerof the technical marketing division at NichiaEurope. He is focusing on connecting customers’technical requirements into Nichia’s productfeatures. Since he joined Nichia Corporation inJapan from 2013, he has worked in productionengineering and LED product planning for generallighting. Makoto holds a master’s degree inMaterial Science and Engineering from TsukubaUniversity in Japan.



OrganisationNichia

Nichia Corporation (Nichia Kagaku KogyoKabushiki-gaisha) is a Japanese chemicalengineering and manufacturing companyheadquartered in Anan, Japan with globalsubsidiaries. It specializes in the manufacturingand distribution of phosphors, includinglight-emitting diodes (LEDs), laser diodes, batterymaterials, and calcium chloride.

The Nichia Corporation comprises two divisions— Division 1, responsible for phosphors and otherchemicals, and Division 2, responsible for LEDs.In the field of phosphors the company has 50% ofthe Japanese market and 25% of the worldmarket.

Nichia is the world’s largest supplier of LEDs. Itdesigns, manufactures, and markets LEDs fordisplay, LCD backlighting, automotive and generallighting applications with the many different ledsacross the entire visible spectrum. Nichia’sinvention and development of white LEDs havespanned several accomplishments throughout thehistory of the company.



Wafer Integrated Chip on PCBMarc JUAREZTechnical Director EuropeSeoul SemiconductorClaudius Keller Strasse 3 B81669 MunichGermany

AbstractDuring the last years the pressure in the LEDmakers for producing cheaper, more efficient andmore reliable products have only increased andpush their R&D teams to bring new solutions tothe table. As it’s well know the CSPs are startingto take the lighting market and partially is becausethey’re cost, reliability and efficacy. They are alsosome of the smallest products in lighting thatresults in smaller lenses and smaller systems withall the benefits this bring to luminaire makers andlighting designers. They have been used sinceyears in tablets, phones, cars and recently ingeneral lighting after the challenges of a highlifetime at high temperatures and high efficacylevels have been achieved. The technology isevolving fast and we can find CSPs in all kind ofLED solutions from a mid-power LED to asuper-high power array of LEDs with theadvantage of a very high lumen package densityand a new way for mixing colors and spectrums.We will show in this paper how the WICOPtechnology behaves and bring new solutions tothe luminaire makers in different fields. Fromindoor lighting where the tunable white and smallcomponents are the key for the smart light andHCL revolution to the outdoor streetlights, tunnellights and architectural lights where the reliability,lm/w and cost are the key for success whilemaking smaller luminaires that require less metalmaterials and less space while bringing newdesign possibilities and more integrated solutionswith the construction blocks. One of the keys forthe success will be the cost that CSPs canachieve in the future. Some of the experts in theindustry sees the WICOP as the only way toreduce cost from a ceramic package with a typicalsilicone dome or a plastic packaged LED. In thecase of WICOP, the LEDs are completelymanufactured at a wafer level that makes it muchmore economic and easy to produce than a

packaged LED that involve many operations likedie attach, bonding, curing, silicone molding,sorting, testing. . . We see a bright future for LEDsbased on wafer integrated manufacturingprocesses as today the cost and the performanceare key and the integration at a module level ofthis components is more and more commonamong the CMs.

Author’s CVMarc JUAREZ

2014-Actually – Seoul Semiconductor – Technicaldirector Europe, 2012-2014 – Lucibel – R&DProject manager for luminaires, 2010-2012 –Founder of LEDsPRO – Lighting company,2007-2010 – Xavier Alsina SA – Constructionproject manager, Master in project managementby the University of Barcelona, Industrial Engineer, Member of IES and APDI associations.


Seoul Semiconductor develops andcommercializes light emitting diodes (LEDs) forautomotive, general illumination, specialty lighting,and backlighting markets. As the fourth-largestLED manufacturer globally, Seoul Semiconductorholds more than 12,000 patents, offers a widerange of technologies, and mass-producesinnovative LED products such as Wicop – asimpler structured package-free LED whichprovides market leading color uniformity, costsavings at the fixture level with high lumen densityand allows design flexibility; Acrich, the world’sfirst high-voltage AC-driven LED technology



developed in 2005, includes all AC LED-relatedtechnologies from chip to module and circuitfabrication, as well as multi-junction technology(MJT); and nPola, a new LED product based onGaN-substrate technology that achieves over tentimes the output of conventional LEDs.

CEO Statement: "Life is a drawing which cannotbe erased and redrawn Thank you for yourinterest in Seoul Semiconductor. I believe acompany should help the world, create value forits customers, let employees have pride andensure the stability for its shareholders SeoulSemiconductor started in 1992 with around 30employees in a small space of a commercialbuilding in Bongchen-dong, Seoul. We havegrown exponentially over the years creating manysuccess stories With a dream that we would makeour LEDs lit up even a space station, we built ourcompany Logo and CI(Corporate Identity) in 1994and have invested in R&D for the last twodecades. Consequently, we also invented theworld’s first AC driven LED technology, “Acrich”,10 times brighter LED “nPola” and package-freeLED technology “WICOP” With thesetechnologies, not forgetting our original intention,we would like to build a clean, healthy andbeautiful world! Moreover, we will do our best tomeet stakeholders’ expectations andrequirements with our products and service andwill abide by national and international standards.Lastly, I want to make a new history of light andwish to be a hope for young generation." CEO,Chung H. Lee



Synergy Between Display andLighting Technologies

James Norman BARDSLEY, Dr.PresidentBardsley Consulting321 Century CircleDanville, CA 94526USA

AbstractDuring the last two decades, the development ofnew technologies for flat panel displays andgeneral lighting have become intertwined.Replacement of fluorescent tubes with LEDs indisplay backlights led to substantial increases inmanufacturing capacity for LEDs, resulting indramatic cost reductions. Efficiency and colorquality have been raised in both applications.However, the contrasting demands in the twofields have led to different priorities in technologydevelopment. For example, the competitionbetween inorganic LEDs, OLEDs and quantumdots has progressed very differently in the twoapplications. Nevertheless, advances in one fieldalmost always lead to improvements in the other.OLEDs have demonstrated superiority in bothsmall and large display screens. Some of thereasons, such as fast response, ultra-highresolution and contrast are of less value in generallighting. Substantial cost reduction has beenachieved in OLED TV and is being transferred toOLED lighting panels, but further advances will becritical to broad adoption. In particular, methodsare needed to increase the throughput of panelproduction without necessitating the investment ofmulti-billion dollars in manufacturing facilities. Theemphasis needs to change from increasingsubstrate area to reducing process time. Theimportance of roll-to-roll processing in achievingthis objective will be assessed. The developmentof OLEDs and ultra-thin backlights has led tosubstantial reductions in the weight and thicknessof displays and the emergence of flexible panels.These advances are being translated into somelighting applications, particularly in transportation.Research on electroluminescence in quantum

dots has been underway for around 30 years, withonly limited success. However, the need for moreprecise color control in displays has led to thelarge volume use of QDs in down-conversion,which may soon have a substantial impact inlighting. The manufacturing cost reductions andtechnology improvements have led to accelerateddevelopment of electroluminescence. The pasttwo years have seen substantial investment in thedevelopment of mini- and micro-LEDs for displayapplications. This could lead to substantialincreases in efficiency as well as in picture quality.The current value of these devices in generallighting is relatively low, but the technicaladvances and processing techniques could havelong-term impact on all areas of lighting. Thestatus of research into micro-LEDs andimplementation of mini-LEDs will be reviewed andthe implications for lighting applications assessed.Even with the introduction of miniature lightsources with digital controls, most luminairesprovide static sources of light. This is changing.As display and lighting technologies merge,dynamic control of light intensity and colorbalance will be followed by adjustable beamshape and beam direction. Remarkable progressalready been made in automobile headlights andin spot lights for museums and theatres. Thepresentation will include highlights from over 100papers on lighting topics that will be presentedduring the SID Display Week in May 2019. Thedivision of time between these various topics willbe designed to avoid duplications with otherpresentations at the Symposium.



Author’s CVJames Norman BARDSLEY, Dr.

As President of Bardsley Consulting, Normanadvises industry, government and academia onsolid-state lighting, flat panel displays and energyefficiency, with special emphasis on diffuselighting, organic electronics and smart lightingnetworks. He is a member of the TechnicalAdvisory Team for the Solid-State LightingProgram of the US Department of Energy. Dr.Bardsley also acts as Chief Analyst for theInternational Solid-State Lighting Alliance (ISA)and is a member of the UNEP Expert Task Forceon LED Lighting and Controls.

OrganisationBardsley Consulting

To support the development of solid state lightingas a prime example of increased energy efficiencyand to help harness solar power and associatedtechnologies in revitalizing the economies of ruralcommunities in Malawi and elsewhere.



Case Studies of LightingApplications Implementing HighLuminance Laser Light Sources

Julian A. CAREYDirector of Product MarketingSLD Laser485 Pine Avenue, GoletaCA 93117USA

AbstractWith white laser light products and systems inproduction and implemented in the field,applications are highlighted and theirperformances and reliabilities are described. Inthe automotive lighting application arena, laserlighting systems have played instrumental roles inthe winning course times of racing vehicles in thefamous Baja 1000 off-road race. The candlepowerand beam angle performances of these systemsare showcased and their implementation designsare outlined to exhibit how these cases can applydirectly to safety design in conventional roadvehicles. Application examples in specialtylighting are also highlighted in the areas of searchand rescue, architectural and other outdoorapplication. These cases describe long throwdistances of light for extended visibility and whichsecondary optical solutions are implemented.Finally, high luminance laser light sources areparticularly well suited to coupling with fiberoptics. Solution cases are described that transmitlaser light through fiber optics to unique specialtylighting applications that implement optics at thelow temperature and highly reliable distal end ofthe fiber while the laser light sources aremaintained for optimal thermal management andserviceability.

Author’s CVJulian A. CAREY

Julian Carey is the Director of Product Marketingat SLD Laser, a leader in the commercialization oflaser light sources for automotive and specialtylighting applications. At SLD Laser, Julianoversees product strategy and marketing for newlaser based light sources. In his prior role, Julianacted as head of marketing at Intematix, a leadinginnovator of phosphors and remote phosphorcomponents for high-quality LED lighting. Hisprevious roles were marketing and developingscanning laser based display systems at Prysmand LED based lighting components and systemsat Philips, Lumileds and Agilent. He holds a BSdegree in Mechanical Engineering from StanfordUniversity and an MBA from MIT Sloan.



OrganisationSLD Laser

SLD Laser is where the future of lighting is beingbuilt. New ideas are being harnessed to realizetomorrow’s product innovations. We arepioneering new ways to generate light that weren’tthought possible – until now. The next generationin lighting has arrived, shining brighter and fartherthan ever before. In the last decade, LED enableda new generation of lighting that changedeverything. Now, LaserLight outshines the limitsof LED to deliver safe, high luminance white lightfrom an incredibly small point source. LaserLightdoesn’t just offer superior technology, it’s enablingentirely new opportunities. We arecommercializing revolutionary semi-polar GaNLaserLight for the next generation of display,automotive, and specialty applications. LaserLightsources are used directly in single color andR-G-B applications, or integrated into laserpumped phosphor architectures.

As an independent spin-off from Soraa Inc, SLDLaser was founded in 2013 by several leadingglobal pioneers in solid state lighting, including Dr.Shuji Nakamura, a 2014 Nobel Laureate inPhysics for his groundbreaking work with LEDs,Dr. Steve Denbaars, Dr. James Raring, and Dr.Paul Rudy. Our laser technology incorporates arobust intellectual property portfolio of over 500patents.



A New Method of Spectral TuningLED With High Color Quality

Daniel HANBusiness Development DirectorBeijing Yuji InternationalRoom 1502, Building No.6, Jia No.2 North Xisanhuan Road100081China

AbstractCurrently it is possible to find different methods ofspectral tuning LEDs on the market, likesemiconductor LED chip of red, green and blue tocombine for white light, or with additionalphosphor converted white light base for theconsideration of better color rendition, or mixingtwo phosphor converted white light LEDs of lowand high correlated color temperature (CCT) toget a flat spectrum during the tuning process.However, there are always color quality andaccuracy issues, or photobiological safetyconcern due to the blue light output when tuningto high CCTs in conventional methods.

This report introduces a new method of tunablespectrum LED developed by YUJILEDS, namedas Spectrum X system, aiming to solve theproblems above by utilizing and integratingsemiconductor chip and LED phosphoradequately. Different from general white lightspectrum, regardless high color rendition featureor not, Spectrum X separates different butnecessary parts from a full white light spectruminto individual channels or packages, combiningthe parts and adjusting each channel by electricalcircuit to achieve dynamic and broad spectra tomaintain high color quality at all CCTs essentially.In this report, we will also introduce the tuningtheory and data, and convert the spectral powerdistributions to Color Rendering Index (CIE) andTM-30-18 (IES) to present the color renditionperformance which will also be compared toconventional methods as mentioned.

This new method is ideal for optimizinghuman-centric lighting (HCL) solution, as widely

recognized, HCL is not just CCT tuning but isabout the essence of a spectrum. Comparing toconventional methods, the Spectrum X matchescircadian rhythms better and the broader spectraavoid spiculate peaks especially on blue lightrange, which means it mimics natural light frommorning to night to a greater extent, providingcomfort light on both visual and biological levels.Furthermore, it is not only suitable for HCL, allapplications that demand dynamic and flatspectrum will prefer this method. For example, itcould simulate standard illuminants of A / B / C /D50 / D55 / D65 / D75 to an ideal degree.Considering the flexibility of the use ofsemiconductor LED chip and phosphor, themethod of Spectrum X can also be extended tomore spectral elements to match more differentand specific lighting applications.

Author’s CVDaniel HAN

With a technical background in photoelectricity,Daniel is currently the business developmentdirector at Beijing Yuji International. He is focusedon market research, R&D of innovated LEDtechnologies and products, as well as globalbusiness strategies implementation. Withprofound understanding of the LED technologyand extensive experience in different LEDindustries, Daniel leads a business departmentmainly concentrating on utilizing and optimizing itsexpertise and resources to providecomprehensive solutions for various applicationsand markets.



OrganisationBeijing Yuji International

Yuji began as a chemical company focusing onthe development of the highest quality phosphormaterials. When we began producing LEDphosphor material in 2006, white LEDs were stillin their infancy, and the industry’s focus was onimproving device brightness and efficiency viayellow phosphor development. Recognizing this,we took a slightly different approach and focusedon red phosphor technology, a necessary additionto any LED phosphor recipe for high CRI and/orlow CCT, which at the time represented a small,yet rapidly growing market opportunity.

Today, we are known for our red LED phosphormaterials with superior brightness and stability,having established key partnerships around theglobe, including Mitsubishi Chemical Corporation.In order to build upon our phosphor expertise andaddress the higher-end lighting markets requiringthe highest color quality white LED devices, webegan offering our own line of packaged LEDsand solutions, with CRI levels reaching 98. Wemanufacture LED products for specialtyapplications demanding full or specializedspectrum coverage.

Our turnkey product lines include high CRI SMDand COB LEDs, flexible strips, PCB modules andlamps. We welcome custom designs ranging fromspecialized spectral requirements to complexPCB designs, and have knowledgeable sales andengineering staff who will gladly help with anykind of project.


Internet of Things (IoT)

98 Monetizing the Cloud for Lighting Controlby Patrick DURAND, Future Electronics

100 IoT System Architecture Testing as Part of Continuous Integrationby Jürgen WÖLFLE, Tridonic

102 The Transformation from a Luminaire Manufacturer to a Smart Building Enablerby Fabian GERSCHWILER, Regent Lighting


Monetizing the Cloud for LightingControl

Patrick DURANDWorldwide Technical DirectorFuture Electronics237 Hymus Boulevard Pointe ClaireQuebec, H9R 5C7Canada

AbstractIoT and lighting as a service have been discussedand written about for years. However, other than afew exceptions, the power of the Cloud has notyet made its way into mainstream lightingprojects. They main 3 obstacles for massadoption of the Cloud have historically been cost,complexity, and perceived value of the Cloud.

The Qualified Bluetooth mesh interoperablestandard is addressing the first 2 obstacles withlow-cost simple sensors and controllers that don’trequire gateways to setup or to operate. As aresult, low-cost simple gateways that act as aprotocol translator between the QualifiedBluetooth mesh nodes and the Cloud can beadded to the network. Various examples of howthe Cloud can be leveraged will be explored inorder to estimate the value of the services thatleverage data from a variety of sources such asoccupancy sensors and power monitoring LEDdrivers. Only by understanding the value of theservices can we truly start monetizing the Cloudfor lighting control.

Author’s CVPatrick DURAND

Patrick Durand is the Worldwide TechnicalDirector at Future Lighting Solutions (FLS) withover 15 years of experience in the solid statelighting industry. Patrick leads the FLS TechnicalMarketing teams and FLS laboratory teamslocated in multiple regions around the world withthe objective of providing world-class support tolighting OEMs in developing luminaires with thelatest SSL technology from the light source to thecomplete system incorporating the LED driver,optic, thermal management and intelligent controlsolutions. Patrick also works with vendors ofemerging technologies where he develops theecosystem necessary to enable and acceleratebroad adoption in the lighting market. He hasdeveloped a suite of award winning online designtools to help lighting OEMs make informed designdecision at both the LED and the luminaire level toreduce time and cost to market. He is also theinventor of a patent related to optimized LED colormixing for generating high CRI white. Patrick hasreceived a Bachelor of Electrical Engineering fromCarleton University as well as a Bachelor ofCommerce and an MBA from the University ofOttawa. He can be reached [email protected].


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OrganisationFuture Electronics

Future Electronics Inc. is a distributor of electronicand electro-mechanical componentsheadquartered in Pointe-Claire, Quebec. Foundedin 1968 by Canadian Entrepreneur Robert Miller,the company is one of Quebec’s largest privatelyowned companies and is currently the fourthlargest electronics distributor in the world. Itoperates in 169 locations in 44 countriesWorldwide. Since 15 years Future LightingSolutions is the dedicated lighting business unitdelivering solutions enabling customers andsuppliers to generate new revenue out of photons.FLS leverages Future Electronics‘ broader set ofinnovative products and advanced services tounlock the growth potential of the lightingcustomers‘ footprint.



IoT System Architecture Testing asPart of Continuous Integration

Jürgen WÖLFLEHead of Embedded Software IoTTridonicFärbergasse 156850 DornbirnAustria

AbstractUtilising light as a form of infrastructure to createa scalable and open IoT system architecture isthe concept behind Tridonic’s net4more.Organising the Internet of Things via an Internetof Light offers a huge amount of possibilities andTridonic, a leading global provider of lightingtechnology, has developed net4more on the basisof this concept. net4more offers a scalable andopen form of IoT system architecture that can beupdated and provides the basis for futureapplications with IPv6 connectivity right up to theend node (individual luminaires).

The net4more toolbox comprises of a range ofdifferent modular hardware components withembedded software applications, such asluminaire fixture devices and independent devicesthat incorporate wall switch or sensor informationinto the network. The app and server side of thesystem involves pure software including appsrequired to plan, commission or switch and dimthe lighting solution. Together with the link serverand the software suite, they form the heart of thelighting system. Alongside this, there is a cloudserver for saving data and a management portalfor visualising data.

In order to ensure the toolbox is of a high level ofquality, software testing forms an integralcomponent of product development at Tridonic inaddition to testing the hardware components. Thewide range of components and level of innovationin the project means there is a high degree ofcomplexity that can present some risks during thetesting phase. Taking this into consideration,

Tridonic has taken a new testing approach whendeveloping the software for net4more. Thepresentation will explain the reasons behind thisdecision, the technical challenges involved andthe innovative testing approach implemented forthe testing of net4more.

Author’s CVJürgen WÖLFLE

As Head of Embedded Software IoT at Tridonic,Jürgen Wölfle is responsible for the developmentand testing of software solutions for field leveldevices deployed in smart lighting systems aspart of the Internet of Things. Jürgen has over 17years’ experience in research and development ofelectronic controls in the automotive and lightingindustries. His expert knowledge is combined withpractical know-how which was obtained early inhis career as a testing engineer along with 15years’ experience as a team leader of softwaredevelopers, engineers and testers. Jürgen Wölfleholds a diploma in Electronics from the Universityof Applied Sciences Ravensburg-Weingarten.



OrganisationTridonic

Tridonic is a world-leading supplier of lightingtechnology, supporting its customers withintelligent hardware and software and offering thehighest level of quality, reliability and energysavings. As a global driver of innovation in thefield of lighting-based network technology,Tridonic develops scalable, future-orientedsolutions that enable new business models forlighting manufacturers, building managers,systems integrators, planners and many othertypes of customers.

To promote the vision of the “Internet of Light”,Tridonic relies on partnerships with otherspecialists. The goal is the joint development ofinnovative technological solutions that convertlighting systems into intelligent networks andthereby enable associated services. Its profound,technical industry expertise makes Tridonic anideal partner for established brands and fornewcomers to the market.

Tridonic is the technology company of theZumtobel Group and is headquartered inDornbirn, Austria. In the 2017/18 tax year,Tridonic generated sales of e352.7 million. 1,690highly skilled employees and a worldwide salespresence in over 50 countries reflect thecompany’s commitment to the development anddeployment of new, smart and connected lightingsystems.



The Transformation from aLuminaire Manufacturer to a SmartBuilding Enabler

Fabian GERSCHWILERProduct Manager Connected LightingRegent LightingDornacherstrasse 390Postfach 139, CH 4018 BaselSwitzerland

AbstractThe influence of disruptive technologies as in thefield of IoT is accelerating the paradigm shift in awide variety of industries, also in lighting. Radicalinnovations usually result in new business models.Product development, sales channels andservices are radically changing. CommercializedIoT product solutions in lighting just started, butwhere is the journey taking us? The meshnetwork of luminaires and the collection of dataprovides new, previously unknown informationabout a building and its use. With the added valuefor the customer comes the uncertainty from themanufacturer. Which services must be offered bya luminaire manufacturer? What know-how willemployees need in the future? What doesdigitalization mean for a luminaire manufacturer?Which customer value will come up in the future?Regent Lighting has recognized the potential ofIoT in Lighting. Over the last few years, Regenthas devoted itself intensively to the developmentof Connected Lighting solutions, which has beenused by various customers already. Instead oftalking about the opportunities and technologiesof IoT, which has been known for a long time,Regent now presents the first IoT solutions fromcustomer projects. Chances but also challengesare pointed out and valuable insights are sharedwith the audience. How did everything start? Howcan a "waste product" like data satisfy a customerneed? Why do we believe that we as a luminairemanufacturer can participate in the market ofSmart Buildings? What are the challenges inproject implementation? In this speech, Fabian

Gerschwiler, Product Manager ConnectedLighting, talks about the lessons Regent learned.What motivated, what defocused Regent? Andwhich tasks are still time consuming today - whycould that be? Looking into the future tells us, whywe remain motivated despite many obstacles.

Author’s CVFabian GERSCHWILER

Fabian Gerschwiler is working as a ProductManager Connected Lighting for Regent,headquartered in Basel. He has worked in thelighting industry for several years in variouspositions in Switzerland and Middle East. Witheducation in electrical engineering, businessadministration and product management, hisresponsibilities consist the development of an IoT-product roadmap including new revenue modelsand services.



OrganisationREGENT

Proud though we are of our hundred-year-oldtradition, we do not regard that as a reason for usto stand still. We are always on the lookout for thelatest technologies, materials and designs to beable to offer our end customers lighting solutionsthat will also be ahead of their time tomorrow.Which is why we are committed to “Lightuition”.Our ethos is based on the combination of theterms “lighting” and “intuition”, wherby the focus ofour work is on the individual needs of ourcustomers and how our luminaires and systemscan be intuitively operated. We create lightingsolutions to improve and enhance workplaces,control functions and the quality of life. RegentBeleuchtungskörper AG, with their headquartersin Basel, have approximately 600 employees insix countries, are a market leader in Switzerlandand one of the leading manufacturers in Europe.Our products are sold internationally through ourdistribution partners in 35 countries around theworld. Thanks to our extensive expertise andknow-how, we are able to provide advice andguidance in a market that, thanks to LEDs and theuse of ground-breaking digital technologies, nowoffers enhanced design scope. We develophigh-quality conventional orsemiconductor-based, optoelectronic lightingsystems. We explore digital innovations in orderto be able to provide smart connected lightingsolutions. Our products today already featuretechnologies of tomorrow. Our Executive Board,headed by our new CEO Christoph Platzer, isresponsible for the operational management andsustainable development of the company. Onlythose who are in a position to make fast decisionsin a focussed, differentiated manner are able tomeet the challenges of tomorrow today. Besidesthe CEO, the Executive Board comprises theHeads of our Sales, Operations, Finances, IT andInnovations.


Optics I–II

106 Micro-optics for Efficient LED Spotlights with Arbitrary Farfield Distributionsby Peter SCHREIBER, Dr., Fraunhofer IOF

108 Ultrathin Freeform Micro-optical Elements – The Potential of Tailor-made Light-directingStructures on Foilby Claude LEINER, Dr., Joanneum Research

110 Freeform Optical Structures: From Macro to Micro Scaleby Tamara ADERNEUER, MSc, CSEM

112 Rapid Optics Design and Manufacture for Future Proof Illumination Systems and CustomizedProject Lightingby Marco de VISSER, Luximprint

114 Freeform Optics for Precise Non-uniform Illumination Patternsby Oscar FERNANDEZ, PhD, CSEM

116 Application of Diffraction-based Optical Components in Advanced Lighting Systemsby Marek SKEREN, Dr., IQ Structures


Micro-optics for Efficient LEDSpotlights with Arbitrary FarfieldDistributions

Peter SCHREIBER, Dr.Senior ScientistFraunhofer IOFAlbert-Einstein-Strasse 707745 JenaGermany

AbstractUsual tertiary optics for collimated LED lightsources are diffusers for simple rectangular orelliptic farfield distributions which result inenlarged etendue and thus increased lamp sizefor a given beam divergence. Replacing diffusersby aligned double-sided microlens arrays withburied slide structures enables realization ofetendue conserving spotlights for arbitrarilyshaped and structured illumination – but this hasto paid by decreased system transmission. A firstcommercial application of this design, referred toas arrayed projector, is the exterior luminaire ofthe BMW “Welcome light carpet“, presented atIAA 2015. We present a further development ofthis design approach for spotlights which employsirregular, aligned double-sided microlens arrays ina fly’s eye condenser arrangement omitting theburied slides. This allows for arbitrary intensitydistributions, etendue conservation – and thusminimum system size – together with hightransmission. Optionally variable farfielddistributions can be realized by switchingindiviudal LEDs, which leads either to controlledarray cross-talk and/or to adressing of differentarray areas generating different farfields.Realization of the irregular lens arrays starts withdesign by raytracing, which has to deal with alarge number of individual lenslet sizes anddecentrations relating to the respective apertures.In the next step lenslet data are transferred to themastering process. This is carried out bygreyscale lithography. From the master profiles

tandem lens arrays are replicated by UV reactionmolding. The aligned, double-sidedpolymer-on-glass optics wafers are then diced, toobtain the optics chips with typical sizes betweenabout one and hundred cm2. This process isavailable from different commercial suppliers. Thepotential of this spotlight technology isdemonstrated by different samples, which e.g.realize an automotive headlight with a passingbeam and a segmented driving beam. Otherapplications for pattern projection and signalingare discussed. Important advantages of thepresented design approach are high transmission,smallest unit sizes because of entendueconserving design and system length shorteningby multi-channel architecture, variable switch- anddimmable farfields and design freedom forrealization of nearly arbitrary spotlight exitaperture shapes.


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Author’s CVPeter SCHREIBER, Dr.

Dr. Peter Schreiber is head of the illumination andprojection group at the micro-optical systemsdepartment of Fraunhofer IOF. He is withFraunhofer for 24 years working in the field ofdesign and application of micro-optics. After studyof physics he received a PhD on light scattering inoptical glasses at Friedrich-Schiller UniversityJena in 1988. Current work is devoted tomulti-aperture micro-projectors for LED lightsources. Development and application of thisoptics architecture were awarded the RudolphKingslake price 2014 by the SPIE and the JosephFraunhofer price by the Fraunhofer Society 2016.

OrganisationFraunhofer IOF

The Fraunhofer Institute for Applied Optics andPrecision Engineering IOF in Jena conductsapplied research in the field of photonics anddevelops innovative optical systems to controllight - from the generation and manipulation to itsapplication. The services offered by the Institutecovers the entire photonic process chain fromopto-mechanical and opto-electronic systemdesign to manufacturing of custom-specificsolutions and prototypes. Current focuses of ourresearch activities include freeform technologies,micro- and nanotechnologies, fiber laser systemsand optical technologies for safe human-machineinteraction or quantum technologies. The Instituteis active in its business fields Optical Componentsand Systems, Precision Engineering Componentsand Systems, Functional Optical Surfaces andLayers, Photonic Sensors and MeasuringSystems, and Lasers.

The competence portfolio encompasses: Designand Simulation, Micro and Nano-structuring,Optics and Photonics Materials, Coating andSurface Functionalization, Diamond-BasedUltra-Precision Processing, Materials ProcessingUsing Ultrashort Laser Pulses, Micro-Assemblyand System Integration, Laser Development andNon-Linear Optics, Measurement Methods andCharacterization.



Ultrathin Freeform Micro-opticalElements – The Potential ofTailor-made Light-directingStructures on Foil

Claude LEINER, Dr.Key ResearcherJoanneum ResearchLeonhardstrasse 598010 GrazAustria

Co-Author(s): Wolfgang Nemitz, Ladislav Kuna, and Christian Sommer

AbstractThe research of the past years showed thatfreeform optics offers new opportunities to opticaldesigners in many different fields because of theirunique ability for creating tailor made radiantintensity or irradiance distributions which cannotbe achieved using conventional optical lenses.However suchlike lenses are very challenging forproduction and replication, as techniques likediamond turning, milling, grinding and polishingare used in general for the manufacturing of therequired tools for injection molding. In contrast,the possibility of imprinting optical elements inroll-to-roll processes like roll-to-roll UVnanoimprint lithography or the roll-to-roll extrusionprocess promises a cost-effective production witha very high throughput of tailor-made opticalelements in a mass production process. However,in order to be able to produce free-form opticsusing such effective manufacturing methods, themaximum height of the optics must be limited. Inthe current contribution we will present the design(calculation) process of so called freeformmicro-optical elements (FF-MOEs), where themaximum height of the resulting structures can beconfined to several 10 microns and will discusstheir advantages in different lighting applications.A direct-lit luminaire, where an array of LED light

sources is generating a homogeneous irradiancedistribution on the exit surface of the luminaire, isin this context an example of special interest. Keyparameters of a suchlike luminaire are thehomogeneity of the irradiance distribution, a lowheight of the luminaire for design reasons as wellas a high DHR ratio, which is the ratio of thedistance between the LED light sources and theheight of the luminaire. By using FF-MOEs on foil,the DHR value can be significantly increased (bya factor of 3) with comparable homogeneity ofirradiance distribution. Furthermore, the thindesign of the FF-MOEs allows a thin design of theluminaire. A wall-wash application, where an LEDlight source located on the blanket of a roomshould homogenously illuminate a target surfaceon an adjacent wall, is another interestingexample. A suchlike luminaire has high demandson the optical system because it requires a stronglight-direction to produce an asymmetric radiationpattern. In this context, we present the potential ofFF-MOEs on foil to fulfill these requirements.


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Author’s CVClaude LEINER, Dr.

Dr. Claude Leiner (male) studied physics at theKarl-Franzens-University Graz, where hegraduated with a PhD degree in 2015. Since 2014he is scientist at JR mainly active in the field ofoptical simulation with different simulationtechniques like classical Ray-Tracing, the finitedifference time domain method or combinedapproaches for multiscale optical simulations. Aspecial focus here is on the design, simulationand further development of ultrathin freeformmicro-optical elements (FF-MOEs) on foils.

OrganisationJoanneum Research

JOANNEUM RESEARCH ForschungsgesellschaftmbH (JOANNEUM RESEARCH) is a businessoriented leader of innovation and technologyproviders. It is linked to a worldwide network andhas been providing leading research according tothe highest international standard since the1960s. With focusing on applied research andtechnology development, the INNOVATIONCOMPANY plays a key role in transferringtechnology and know-how in Styria.

To benefit the region, JOANNEUM RESEARCHperforms the following key tasks: INNOVATIONJOANNEUM RESEARCH actively cooperateswith business, industry and the public sector togenerate innovations. We focus onapplication-oriented research and developmentprojects to promote technology transfer into theeconomy. KNOWLEDGE NETWORKJOANNEUM RESEARCH forges organisationallinks between national and international researchnetworks. It acts as a customer interface,providing advice and facilitating contact betweenresearch, business, industry and the public sector.KNOWLEDGE TRANSFER JOANNEUMRESEARCH provides access to new science andtechnology for the benefit of the region. We set ahigh value of targeted programs to foster careerdevelopment of our employees and theadvancement of women in our staff. ShareholderThe shareholders of JOANNEUM RESEARCHare represented by the Province of Styria (80,75%of the shares), the BABEG - KärntnerBetriebsansiedlungs- & Beteiligungsgesellschaft(14,25%) an the Landesholding Burgenland (5%).

Research Units MATERIALS – Institute forSurface Technologies and Photonics HEALTH –Institute for Biomedicine and Health SciencesDIGITAL – Institute for Information andCommunication Technolgies POLICIES – Institutefor Economic and Innovation ResearchROBOTICS – Institute for Robotics andMechatronics LIFE – Centre für Climate, Energyand Society COREMED - Cooperative Centre forRegenerative Medicine

LOCATIONS More than 440 employees carry outresearch work at the main location in Graz and atthe other locations in Hartberg, Niklasdorf, Weiz,Pinkafeld, Klagenfurt and Vienna.

Holdings under corporate law JOANNEUMRESEARCH has holdings in 17 enterprises undercorporate law. These corporate holdings supportthe key thematic priorities and the achievement ofcorporate objectives in many different ways.Close cooperation among shareholders in each ofthe involved enterprises translated to a highlysignificant added value for the research portfolioof JOANNEUM RESEARCH.



Freeform Optical Structures: FromMacro to Micro Scale

Tamara ADERNEUER, MScPhD StudentCSEMTramstrasse 994132 MuttenzSwitzerland

AbstractThe interest in freeform optical components hasincreased rapidly in the last years. Theirnon-symmetrical shape enables illuminationpatterns impossible with standard components,the design of complex, albeit compact, opticalarrangements and enhances device performance.Design methods have been developed for imagingand non-imaging applications that have led toconception of better or even innovative devices.Accordingly, most efforts are committed today tothe high-quality manufacturing of thesecomponents. Freeform microlens arrays, FMLAs,are, in addition, compatible to large-area and/orflexible devices and can couple light effectivelyinto arrays of electronic (e.g. CCD sensors orLCD pixels) and optical (e.g. waveguides andfibers) microscopic components. Theirmicroscopic nature carries specific designchallenges which currently limit FMLA applicationto for example collimated sources and relativesimple optical effects such as square/rectangularuniform illuminance distributions. Here we reporton CSEM latest achievements in the design ofFMLAs.

Author’s CVTamara ADERNEUER, MSc

Tamara Aderneuer studied physics in which shereceived her BSc from the Technische UniversitätMünchen, Germany in 2014 and her MSc fromEidgenössische Technische Hochschule Zürich,Switzerland in 2016. She conducted her masterthesis in the “Photonics” Group at IBM ResearchRüschlikon, Switzerland. Her internationalexperience include a year at the Robert ServiceHigh School in Alaska, USA and a semester atthe Universidade Federal do Rio Grande do Sul,Brazil. During the studies she got awarded withthe scholarship “Deutschlandstipendium” and onefrom the “Bayerische EliteAkademie”. InSeptember 2017, she started her PhD in the“Micro- Nano Optics & Photonics” Group at CSEMin Muttenz, Switzerland in cooperation with Prof.Cajochen, head of the Centre for Chronobiologyat the University of Basel, Switzerland.


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OrganisationCSEM

Mission—Ensuring competitiveness throughinnovation CSEM’s mission is to develop andtransfer world-class (micro) technologies to theindustrial sector—Switzerland being ourpriority—in order to reinforce the sector’scompetitive advantage. We do this by:

Making cooperation agreements with establishedcompanies Encouraging the creation of start-ups.Vision—Technologies that make the differenceCSEM strives to be the Swiss cornerstone ofinnovation and technology transfer inmicro-engineering and digital deep tech.

Maintaining industrial (manufacturing) activity inSwitzerland is essential to the country’s futureprosperity and stability. But Swiss labor costs arecomparatively high. Innovation is the only provenpath to successfully managing these overallsituation. Innovation, however, suffers from abottleneck: technology transfer. And this isparticularly true in an SME-driven economy. Thisis why we strive to facilitate and even to acceleratethe technology transfer process, employingoutstanding CSEM technologies that make thedifference in the digital world. Strategy—Makingthe difference We position CSEM as the foremostnational player in the field of technology transfer.In this way, we explore new means ofcollaborating with academia and the economy,creating conditions favorable for the technologytransfer required by the industries of tomorrow:

Leveraging our excellence in integration andmultidisciplinary research in the broad field ofmicrotechnology in order to strengthen ourdifferentiation. Intensifying our collaboration withSwiss academia and Swiss research andtechnology organizations (RTOs). Encouragingmore entrepreneurs to create start-ups.Strengthening our position at the European level,with the Heterogeneous Technology Alliance(HTA) as our preferred tool. The disruptivemicrotechnology platforms we developtoday—strengthening the "Swissness" of productsand processes—will, tomorrow, help Swissindustry maintain its leadership, creating wealthand jobs in the process, said Mario El-Khoury,CEO.



Rapid Optics Design andManufacture for Future ProofIllumination Systems andCustomized Project Lighting

Marco de VISSERCo-Founder, Director of Marketing & SalesLuximprintKorte Eeweg 1P4424 NA WemeldingeThe Netherland

AbstractAdditive fabrication of custom LED optics is afuture proof methodology of rapid prototypingoptical parts by means of digital 3D printingtechnologies. The lecture ‘Custom Optics Designand Digital 3D Fabrication’ teaches practicalapproaches on how to design for additive opticsmanufacturing by using state-of-the-art‘target-to-source’ optics design software, aimingto overcome the challenges in todays landscapeof lighting system design and project application.

Additive Optics Fabrication encompasses a 3Dprinting technology utilized to produce customoptics directly from a CAD file. In sharp contrastto conventional subtractive processes of milling,turning, grinding and polishing, additivemanufacturing creates parts by building them upwith progressive computer controlled deposition ofmaterial, in a process that resembles printing, butwith multiple passes until the desired 3D shape isachieved. How this works in detail and howoptimized design software minimizes effort, whileproviding outstanding results is demonstrated.

Intelligent Optics Design Meets 3D PrintingTechnology Fortunately, there are also some veryinteresting developments underway that enrichtoday’s optics and system design landscape.Where additive optics fabrication technology

breaks down the barriers of manufacture andaddresses the “pain points” in today’s lensfabrication processes, conventional optics designsoftware still needs a high level of expertise andtime to get to a solution, mainly a compromisebetween the design software and the fabricationprocess. The answer to overcoming thebottlenecks in conventional optics designmethodologies is to apply modern mathematicalmethods from physics and computerprogramming to generate the required optics,leading the focus away from how to achieve ittowards where the light is desired. Paving thePath for Novel Optics Solutions and ApplicationsNew opportunities in custom optics design anddevelopment appear for the lighting industry when“smart optics design” and “additive manufacturingof custom LED optics” get together. Acombination of those two emerging technologiesis extremely powerful, as the intelligent piece ofdesign software incorporates and considers theoptical 3D printing platform capabilities whengenerating designs for manufacture. Productdevelopers, on the one hand, can now benefitfrom the ‘printing-on-demand’ of custom designedLED optics, with no costly commitments to toolingand inventory, while creative lighting specifierscan get uncompromised lighting solutions,


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meeting the exact quantities and needs for theircustom project.

Lecture attendees will gain deeper insights in thesoftware and fabrication capabilities, while theyget educated and challenged accordingly toopenly share their ultimate design challenges andfrustrations. Finally, they will be provided with atoolkit including novel methodologies in designand fabrication to ease future lighting system andproject design and overcome the currentconstraints and bottlenecks.

Kick-Out: Raising awareness for reduction of ‘lightpollution’ and ‘light nuisance’ (glare, blinding) is a‘take-away-message’ that will enable the audienceto rethink their current lighting design approachesusing the new tools as offered.

Author’s CVMarco de VISSER

Marco de Visser is a Dutch self-proclaimed 3DPrinting and Lighting enthusiast. Marco isFounder and Editor in Chief for3DPrinting.Lighting and Inspiration.Lighting and isactively involved and engaged with the globallighting, optics and maker movements. De Visseris Co-Founder of ‘Luximprint‘, a multi-marketservice provider in 3D printed optics andOptographix for illumination system engineeringand project design applications. In parallel, heruns Luminous Concepts, a creative lightingdesign and consulting practice that is activelypromoting integrated lighting solutions forbranding and interior design, using (andmis-using) state-of-the art interactive and lightingtechnologies.

OrganisationLuximprint

Luximprint is a globally operating additivemanufacturing firm offering its novel additiveoptics fabrication technology as a service torapidly create functional prototypes and signatureprojects in illumination engineering and design,temporary events and interior spaces. Luximprint,based in Wemeldinge, Netherlands, introduces anovel additive manufacturing technology thatenables the creation of ‘Optographix’: a uniquecombination of transparent and graphicalelements applied onto technical plastics.Combined with day or artificial light, the structurescome to life and create stunning luminous objectsthat can be used for functional or decorativeapplication in illumination projects.

With the introduction of ‘Optographix’, Luximprintopens up a new market space for the design-,artist and engineering community to make uniqueprojects come to life in a fast, effective andaffordable way.



Freeform Optics for PreciseNon-uniform Illumination Patterns

Oscar FERNANDEZ, PhDProject ManagerCSEMTramstrasse 994132 MuttenzSwitzerland

Co-Author(s): Tamara Aderneuer and Rolando Ferrini

AbstractFreeform optical components, lacking symmetryconstrains, have the potential to re-distribute lightextremely precisely since their surface can beoptimize for nearly all incident rays. This propertyhas been exploited to create uniform illuminationof non-symmetric shapes. However, freeformoptical design can be exploited further to achieveoff-axis, asymmetric and precisely non-uniformlight distributions which are impossible withstandard, axially invariant components. Here wepresent several of such cases and discuss howfreeforms help achieving such demanding targets.Furthermore, we also report on potentialstrategies to transform freeform components byfreeform microlens arrays hence exploiting theflexibility and large-area compatibility they offer.

Author’s CVOscar FERNANDEZ, PhD

Oscar Fernandez, male received his MSc andPhD degrees in Physics from the University ofValladolid (Spain) in 2000, and the University ofNorth Wales, Bangor (UK) in 2004, respectively.After his PhD Oscar investigated the interfacialorigins of threshold voltage instabilities in organicthin-film transistors (OTFT) as a post-doctoralresearcher the Molecular Electronics Group inBangor. In 2006 he joined Cambridge DisplayTechnology (CDT) where he led the devicephysics activities in the lighting program. In 2011he joined Polymer Vision BV in Eindhoven

(Netherlands) where he worked on thedevelopment of OLED processing andcharacterization for oxide TFT-based rollableOLED displays. Since May 2012 Oscar is part ofthe Micro/nano optics and photonics Group atCSEM in Muttenz (Switzerland).

OrganisationCSEM

Mission—Ensuring competitiveness throughinnovation CSEM’s mission is to develop andtransfer world-class (micro) technologies to theindustrial sector—Switzerland being ourpriority—in order to reinforce the sector’scompetitive advantage. We do this by:

Making cooperation agreements with establishedcompanies Encouraging the creation of start-ups.Vision—Technologies that make the differenceCSEM strives to be the Swiss cornerstone ofinnovation and technology transfer inmicro-engineering and digital deep tech.

Maintaining industrial (manufacturing) activity inSwitzerland is essential to the country’s futureprosperity and stability. But Swiss labor costs arecomparatively high. Innovation is the only provenpath to successfully managing these overallsituation. Innovation, however, suffers from abottleneck: technology transfer. And this isparticularly true in an SME-driven economy. Thisis why we strive to facilitate and even to accelerate


Optics I–II 115

the technology transfer process, employingoutstanding CSEM technologies that make thedifference in the digital world. Strategy—Makingthe difference We position CSEM as the foremostnational player in the field of technology transfer.In this way, we explore new means ofcollaborating with academia and the economy,creating conditions favorable for the technologytransfer required by the industries of tomorrow:

Leveraging our excellence in integration andmultidisciplinary research in the broad field ofmicrotechnology in order to strengthen ourdifferentiation. Intensifying our collaboration withSwiss academia and Swiss research andtechnology organizations (RTOs). Encouragingmore entrepreneurs to create start-ups.Strengthening our position at the European level,with the Heterogeneous Technology Alliance(HTA) as our preferred tool. The disruptivemicrotechnology platforms we developtoday—strengthening the "Swissness" of productsand processes—will, tomorrow, help Swissindustry maintain its leadership, creating wealthand jobs in the process, said Mario El-Khoury,CEO.



Application of Diffraction-basedOptical Components in AdvancedLighting Systems

Marek SKEREN, Dr.Chief Technology OfficerIQ StructuresHlavni 130250 68 Husinec-RezCzech Republic

AbstractIn this paper novel approaches to optical beamshaping for lighting applications are discussed.The invention of LED sources into the lightingindustry initiated new requirements on opticalcomponents used for beam management.Besides the application of refractive and reflectiveelements, some luminaire manufacturers startedto use optical components based on diffraction oflight in their products. The simplest example ofsuch an element is a diffuser based on randommicro-structure which scatters the light andsoftens the light distribution. Such elements areused either separately or in combination withother conventional optical components (typicallylenses or reflectors). In addition to well-knownconventional optical diffusers (usuallymanufactured using grinding or etchingtechniques) also synthetic diffusers weredeveloped based on point-by-point calculation anddirect writing of the micro-structure. As aconsequence of this approach variousasymmetric light distributions can be createdwhich are difficult to achieve with conventionaldiffusers. However, the direct approach to thedesign and manufacturing of micro-structures (oreven nano-structures) can result in much moresophisticated optical elements (or even wholeoptical systems) which can hardly be calleddiffusers. Although these components can lookvery similar to conventional diffusers (from amacroscopic point of view), in optical function theyare much closer to optical elements. They can

also work in imaging regime as conventionallenses or even as holographic imaging systems.This contribution analyzes various approaches tothe design and manufacturing of generalizeddiffusers and new complex micro- andnano-optical components. Besides the relief-typemodulation a volume modulation of opticalproperties can be used for manipulation of light ona basis of diffraction. Volume elements canfurther improve general properties of the productsand their resistance against variousenvironmental influences. Applicability of volumestructures in lighting applications have beenanalyzed in detail also with regard tomass-production processes. Volume gratings (orgeneral volume diffractive elements) are usuallyrecorded inside a plan-parallel layer and thus theyare well protected against most environmentalconditions. Moreover, in some cases, thediffraction efficiency of volume structures can besignificantly higher than the efficiency ofrelief-type elements. This paper analyzes theapplication of volume elements for managingwhite light beams from LED sources. Dispersionof light, angular and spectral selectivity and othereffects are discussed. Volume diffractive elementshave also significantly different requirements onmastering and mass-replication technology.Innovative approaches to manufacturing ofvolume structures will be presented includingoptical recording processes and mechanicalreplication techniques. IQ Structures developed a


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general approach to design and manufacturing ofoptical systems for lighting applications whichapplies mentioned elements in complex systems.Combination of conventional components withoptical micro- and nano-structures gives us anability to achieve interesting light distributionstogether with new visual design of luminaires.Simultaneous use of volume and relief elementsensures high performance and robustness of theoptical systems integrated under the trade nameNanoptiqs.

Author’s CVMarek SKEREN, Dr.

Marek Škeren received his master degree inphysical electronics (2000) and PhD. degree inoptical physics (2006) from Faculty of NuclearSciences and Physical Engineering of CzechTechnical University in Prague. His fields ofinterest are computer generated optical diffractivestructures, optical holography, design andmanufacturing of optical nano-structures andapplication of nano-structured materials inadvanced light management systems. He is anauthor of numerous scientific papers from field ofsynthetic holography. In 2010 he co-foundedHoloPlus company oriented on diffractive optics.Until 2015 he was also a head of Optical PhysicsGroup at Czech Technical University in Prague.Currently, he holds the position ofchief-technology-officer in IQ Structures s.r.o.

OrganisationIQ Structures

We use state of the art technology andinterdisciplinary expertise to form micro- andnanostructures of materials and their surfaces toenhance products with new functions andproperties.


Controls I–III

120 80-20 Vision HCL: How to Conduct an Orchestra of Tunable White Lights to Deliver AffordableHCLby Patrick V. KELLY, PhD, ROBUS

122 Luminaires and the Internet of Things – A Feasible Approach for Retail Applicationsby Meike BARFUSS, Prof., FH Südwestfalen

124 Sensing Outside the Box – The Lighting and Building Automation Convergenceby Tom GRIFFITHS, ams

126 Data Analytics in Connected Lighting Systems – A Case Studyby Sebastian KNOCHE, Dr., ITZ / Trilux & Repro-Light

128 IP to the Node - An Upcoming Disruption in Lighting Controlsby Walter WERNER, Dr., Werner Management Services

130 NFC Current Configuration and Constant Lumen Output Functions in LED Power Suppliesby Qi ZHU, Dr., Infineon Technologies

132 Clock-Driven Control in Combination with a Linear LED Strip for Human Centric Lightingby Roland MICHAL, Dr., BILTON

134 Miniaturization of LED Drivers and Integration of Connectivityby Laurent JENCK, MBA, ERP Power


80-20 Vision HCL: How to Conductan Orchestra of Tunable WhiteLights to Deliver Affordable HCL

Patrick V. KELLY, PhDResearch, Development and Innovation DirectorROBUSNangor Road, D12 E7VPDublin 12Ireland

AbstractHuman centric lighting is a broad conceptencompassing the promotion of circadian rhythmentrainment, the delivery of good visual acuity,and the avoidance of glare and flicker. In thispaper, we draw upon headline scientific and fieldstudy results on these aspects of human centriclighting, to inform the development of a highperformance human centric lighting system,deliberately limited to dual channel 2700K and6500K tunable mixed white, and capable ofdelivering these lighting results on a multiplicity offitting formats. The headline results to which weare developing are that: (i) we must take care todeliver melanopic (blue) content when it is healthyfor us, and to reduce it at night; (ii) beyond neutralwhite (c. 4000K), visual acuity is primarilypromoted by delivering higher illuminance; (iii)glare and flicker must be mitigated. We explore“Edison’s Cave” and the socio-economicrevolution wrought by incandescent light, and thelegacy chains from which we can now escapewith LED. Too many pre-LED legacy factorscontinue to condition lighting standards. Wedemonstrate the key objectives of human centric“lightswitch” type and app control, from the enduser’s point of view. Our objective is to create anaffordable, mass market, form of human centriclighting, pitching beyond the innovator and earlyadapter markets (16%) to the mainstreamcommercial and residential market. We thendiscuss the comparative merits of dual channeltunable white compared to more advancedsystems (RBW, RGB, RGBW, RGBWW,

RGBW&CO, and multichannel systems using anapproximate sun spectrum white light at high CRIas white channel). Complexity costs more – sowhat are the benefits? We explore the “do noharm” ethical principle, and why, in the context ofhuman centric lighting, doing nothing is harmful,and doing something without all the bells andwhistles delivers benefits. Finally, a roadmaptowards the future convergence of intelligentcontrols, sensor networks, and complex spectralhuman centric lighting is charted, pointing to apersonalised light experience.

Author’s CVPatrick V. KELLY, PhD

Dr. Pat Kelly is Research, Development andInnovation Director at the ROBUS Innovation Hub,LED Group, Dublin, Ireland. He is the company’stechnology pathfinder. Since 2014, he hasintroduced Driver-On-Board technology atROBUS. He leads the company’s development ofHuman Centric Lighting, and related wirelesscontrols.

A physicist, he graduated from the University ofDublin (Trinity College) with a B.A. (Mod.) inexperimental physics in 1986, and a Ph.D. inPhysics in 1992. He worked for ten years atNMRC (now Tyndall National Institute), UniversityCollege Cork, where he became Group Director –


Controls I–III 121

Photonics in 1999. He was Founding Director andChief Technology Officer of Optical MetrologyInnovations Ltd from 2002 to 2007. He worked asa Commercialisation Executive at the NationalUniversity of Ireland, Galway, Ignite TechnologyTransfer Office from 2007 to 2011, before joiningAdelaide Research & Innovation Pty Ltd,Australia, as Deputy Director from 2011 to 2013.He is a named inventor on seven patents, authorof some 60 papers, and is also a self-publishedtravel author.

OrganisationROBUS

As a market leading brand, the ROBUS range oflighting solutions are proven and trusted by over3,000 stockists and thousands of installersinternationally. Since its introduction the ROBUSbrand of lighting solutions has becomesynonymous with innovation, quality and value formoney. Simple installation, significant energysavings and ‘fit and forget’ solutions are keyhallmarks of the range. All new productintroductions to the ROBUS range are advancedLED solutions to replace traditional light sourcesfor both commercial and residential applications.Over 1,100 product lines are held at our CentralDistribution Centres in Dublin and Australia.

Customers: ROBUS products are sold throughelectrical wholesalers and we pride ourselves onthe partnerships created to service all who orderthrough the wholesaler with the right productrange, stock availability, fast service and technicaland marketing support.

Quality: ROBUS products are designed to complywith EN 60598 and the Lighting Association Codeof Practice. All products are rigorously tested withfull serial number traceability. LED products in theROBUS range use high-bin LEDs in partnershipwith manufacturers who have complete and testedproduct performance data.

Technical Support: All ROBUS products aresupplied with installation instructions. TheROBUS technical support team are available totake any queries or referral to installationinstructions and diagrams.



Luminaires and the Internet ofThings – A Feasible Approach forRetail Applications

Meike BARFUSS, Prof.ProfessorFH SüdwestfalenHaldener Straße 18258095 HagenGermany

Co-Author(s): Miesner, C.; Thiemann, L.

AbstractAdvances in technology led to connecting manysmall devices to the Internet, forming the Internetof Things. This approach enabled us to developretail lighting with not only superior lighting qualitybut also additional sensing functionalities leadingto valuable additional features at only slightlyincreased costs.

Modern fixtures for retail lighting may providemultiple spectra to intensify the colorcharacteristics of several specific products. Tocontrol various parameters such as brightness,color temperature or said spectrum a digitalinterface is needed. As a consequence,luminaires are usually networked, thus connectedto a wired bus system like DALI. Luminaires arepowered by mains, digitally networked and have aknown physical location. They therefore constitutean excellent base for the Internet of Things (IoT)as they are already forming the digitalinfrastructure of a building.

Equipped with sensors for people counting, retailluminaires can provide information that can beused for marketing purposes like heat mapping orcustomer footfall analytics, asset tracking, facilitymanagement or simply observing waiting queuesand providing service personnel before theyexceed a given length.

Since DALI is simple and commonly used ininterior lighting our approach for connecting theluminaires is using this existing DALIinfrastructure bidirectionally for lighting control aswell as for the transfer of sensor data. Besides thecommon DALI components the resulting systemconsists of a cloud and interfaces for mobiledevices. Well-known DALI is thereby getting intocompetition to wireless systems like Bluetooth orZigbee.

As a sensor for our application we chose thePanasonic GridEye. It presents a convincingsolution not only in functional terms, but alsoregarding its price-performance ratio. This sensorincludes an 8 by 8 pixel array of thermocouplesmeasuring the infrared radiation emitted byobjects and persons underneath. The sensor datais processed inside the luminaire and compressedto the information necessary and valuable for thespecified application thus coping with the limitedbandwidth of the DALI system. This is managedby averaging over one or more seconds, wherebythe averaged data is still absolutely sufficient forall given applications. The resulting thermalimage can be analyzed to detect persons andtheir movements.

After being transmitted to a central embedded



light controller, the data is written to a database.Cloud-based services using the aforementioneddatabase can be accessed worldwide and provideuseful features. Moreover, now that luminaires areequipped with sensors, the commissioningprocess can be sped up drastically.

In summary it can be said that the Internet ofThings offers a great potential for retail lighting.The concept introduced shows that implementingsensing features in addition to lighting is feasibleand generates added value by enablingshopkeepers to carry out helpful analytics.

Author’s CVMeike BARFUSS, Prof.

Meike Barfuss is professor of Electronics andLED-Systems in Hagen, Germany atFachhochschule Suedwestfalen, University ofApplied Sciences. In bachelor and master thesesas well as in R&D projects she works on intelligentconnected lighting systems and electronic circuitdesign -often for lighting applications- with a focuson cost optimization and energy efficiency. She isa member of the managing board of LiTG, theGerman society of lighting technology.

Christian MIESNER

Christian Miesner is CTO at BÄRO GmbH & CO.KG. and in charge of innovation and development,laboratory’s and quality management for RetailLighting and Clean Air Technologies.

OrganisationFH Südwestfalen

The South Westphalia University of AppliedSciences [German : FachhochschuleSüdwestfalen] is a high-ranked researchinstitution located in the state of NorthRhine-Westphalia, Germany. With more than14,000 students, it is one of the largest of its kindin North Rhine-Westphalia. It has five campuseslocated in Hagen, Iserlohn, Lüdenscheid,Meschede and Soest. It offers a total of about 52bachelor and master courses in the fields ofEngineering, Natural Sciences, InformationTechnology, Business management andAgriculture. The university is known for itsinnovative, future-oriented study programmes and

good student-faculty ratio. It offers courses forboth full-time students and for those inemployment. It also accommodates those whowish to combine vocational training with studies.



Sensing Outside the Box – TheLighting and Building AutomationConvergence

Tom GRIFFITHSSr. Marketing Managerams1604 Potomac Cir Cedar ParkTX 78613USA

AbstractAdoption of optical sensor-in-the-looptechnologies has not only simplified and optimizedtunable white luminaires, it has also provided abusiness case to embed intelligence andimplement basic connectivity. While this task hasonly just begun, we can now expect to see a rapidincrease the range and ease of use for connectedsolutions, which will further drive demand forsmarter lights. We’re only a few short years awayfrom a majority of new lighting installations to takefor granted that all lights are connected endpoints.Once smart and connected, the next wave will beto add additional sensing features and value thatdrive lighting to its proper leadership position inbuilding automation. This crown is not to be wornlightly, and most luminaire manufacturers have noidea how to implement this, and more importantly,how to get paid for it!

In this talk and paper, we will examine ways inwhich lighting will bring value-add outside thelight. Areas to be examined include: • Enhancedspectral sensing technologies, hosted by ourlighting, and potential use cases in buildingautomation • Ripping the thermostat off the wall –how lights become our HVAC eyes and ears • Therole presence and activity monitoring will play inbuilding automation • Key technologies that willenable outside-the-box sensing • The soon-to-besimple keys that will enable the business case

We will also address the breadth of sensingtechnologies that could find their way into the

lights, including a discussion of how differenttypes of evolving technologies will compete forcertain sensing functions, while othertechnologies may provide multiple functions froma single type of sensor.

Author’s CVTom GRIFFITHS

Tom Griffiths is Senior Marketing Manager forIndustrial Spectral Sensing Segments at ams AG.He has spent the last 20 years as a strategicconsultant, communicator and evangelistimmersed in LEDs, LED lighting, and theassociated markets, including his roles as thefounder and publisher of several well-recognizedindustry publications. Tom’s background prior tothose successful endeavors included 15 years ofstaff-level marketing and sales managementwithin the board-level embedded computerindustry. He holds bachelors and masters degreesin economics from the University of California.



Organisationams

Leading manufacturers around the globe rely onams’ sensing know-how for advanced systemsdesign. For ams, “Sensing is Life” and ourpassion is in creating the sensor solutions thatmake devices smarter, safer, convenient andmore environment-friendly. ams’ sensor solutionsare at the heart of the products and technologiesthat define our world today – from smartphonesand mobile devices to smart homes and buildings,industrial automation, medical technology, andconnected vehicles. Our products driveapplications requiring small form factor, lowpower, highest sensitivity and multi-sensorintegration. We offer sensors (including opticalsensors), interfaces and related software forconsumer, communications, industrial, medical,and automotive markets.



Data Analytics in ConnectedLighting Systems – A Case Study

Sebastian KNOCHE, Dr.ResearcherITZ / Trilux & Repro-LightHeidestraße 4D-59759 ArnsbergGermany

AbstractToday’s lighting systems offer the opportunity togather large amounts of data on their usage,operating conditions and readings from multiplesensors. In systems with advanced features likedaylight control, presence control and circadianlighting, the observed data is complex enough topose interesting research subjects. Analysis ofthese datasets yields insights that are valuable forfuture developments of luminaires and lightingsystems. This talk will start off with an exploratoryanalysis of real-life data collected from aninstallation in Arnsberg, Germany. After touchingsome of the most intriguing findings andcorrelations, we will concentrate on the analysis ofenergy savings offered by systems that includedaylight control. A simple model for the energysavings over the days of a year and over the timesof a day is presented, which is in good agreementwith the measurement data and can easily begeneralised to different geographic locations.Moreover, it is shown that daylight control systemssignificantly elongate the lifecycle of LEDcomponents and thus generate an additionalbenefit regarding the environmental impact oflighting systems. The research presented here ispart of an in-depth Life Cycle Analysis of lightingsystems conducted within the European researchproject Repro-light. This project aims to supportthe European lighting industry in moving towardsa more sustainable and competitive future. It hasreceived funding from the European Union’sHorizon 2020 research and innovation program.

Author’s CVSebastian KNOCHE, Dr.

Sebastian Knoche studied physics and obtained adoctoral degree in the field of theoretical softmatter physics from TU Dortmund university. In2015, he changed from academia to industry andstarted working for the Innovation and TechnologyCenter of the TRILUX Group. Since 2017, he is inlead of the lighting research team.

OrganisationITZ / Trilux

The Innovation and Technology Center (ITZ)operates as an independent company and is acentral link between the single business units ofthe TRILUX Group, without having an influence onthe independence of the brands. The combiningof core expertise from the technology sectors ofelectronics, photometrics and mechanics enablesthe utilisation of greater synergies for optimal,application-oriented system solutions.Components developed are made available toindividual companies of the TRILUX Group fortheir applications and marketing.

With the setting up of a strategic technologymanagement system within the ITZ, trends in themarket and future technology are identified ingood time and integrated into future productconcepts. The basis for successfulimplementation includes cooperation in



international networks, partnerships, associationsand standardisation organisations, as well asactive participation in research projects. Inaddition to technology and information topics, theITZ provides central services for the completeTRILUX Group such as project management,laboratories and patent information.

Repro-Light

Repro-light is a European research project thataims to support the European lighting industry inmoving towards a more sustainable andcompetitive future.

The Repro-light project will harness innovativetechnologies and materials to design a modularluminaire architecture with a smart productionscheme as part of the circular economy, areconfigurable customised LED luminaire, the‘Luminaire of the Future’.



IP to the Node - An UpcomingDisruption in Lighting Controls

Walter WERNER, Dr.CEOWerner Management ServicesJosef-Anton-Herrburgerstraße 106850 DornbirnAustria

AbstractBacnet, Zigbee, KNX, DALI, BLE-mesh, LON,Z-Wave, and many many more private systems:Who is going to finally win the lighting controlsprotocol race? Surprisingly this question can beclearly answered today, and the answer is „noneof the above“: it will be CoAP based IP (internetprotocol) based systems that directly address theluminaires and sensors. My lecture will show whythis is going to happen, and what the associatedbenefits are. Moreover, I will address how this willaffect the lighting controls (and -possibly later-also the building controls) market and the lightingsupply chain structures. I will finish motivatingsome steps that can be taken by companiesoperating in this field to avoid hazardous impactfrom this disruption by picking up its momentum.

Author’s CVWalter WERNER, Dr.

Dr. Walter Werner is head of the WernerManagement Services, a consultancy company inthe field of innovation, lighting controls and theInternet of Things. He worked as Head of SystemArchitecture at the Austrian lighting enterpriseZumtobel Group from 2011 until 2014. From 2009to 2011 he worked as an Innovation Consulterand parallel to that taught at the Institution forHigher Education in Rankweil, Austria. From 2006to 2008 he was the Managing Director of a Swisssoftware startup company called mivune, situatedin Zurich. He was employed at Moeller ofGermany as Technical Manager Switchgear from2004 – 2006 and prior to that, formed the smartlighting agenda of Zumtobel in the years 1985 to

2004. Dr. Werner completed his studies atInnsbruck University in Experimental Physics witha PhD.

OrganisationWerner Management Services

Werner Management Services e.U. is aconsultancy, that focuses on InnovationManagement and provides related services. Wellmanaged innovation is a core success factor.However, it is often a major challenge to identifywhat innovation fits best, and to drive a successportfolio. That’s where Werner ManagementServices offers a helping hand: Implementingsuccessful and tailor made systematics into theinnovation process, unchaining the flow ofvaluable ideas, and guiding processes to achieveself guidance to the point. In addition we areprepared to bridge missing expertise incommunication and controls if required, both asreporting external experts, as team challengers orworkshop organizers that help to come to a soundconclusion.





NFC Current Configuration andConstant Lumen Output Functionsin LED Power Supplies

Qi ZHU, Dr.Senior Business Development ManagerInfineon TechnologiesAm Campeon 1-1585579 NeubibergGermany

Co-Author(s): Doris Keitel-Schulz

AbstractIn the LED market, more and more high-end LEDpower supplies offer two novel functions: NFCcurrent configuration and Constant Lumen Output(CLO). The NFC current configuration functionhelps LED driver maker and luminairemanufactures to waive the inflexible andlabor-intensive current configuration method usingplugin resistor or DIP switches. It cuts the totalproduct ownership cost by reducing the inventoryand improves operational efficiency. Another veryimportant function is the Constant Lumen Output(CLO) function that compensates the luminousflux drop (aging effect) of the LED module byadjusting the LED current according to the totaloperation time. This function is beneficial for bothend customer and environment since it reducesthe total energy consumption and improves theproduct quality and lifetime. Since the NFCcurrent configuration and CLO are digitalfunctions, as of today, they are only implementedin highend LED power supply products where aMicro-Computer is available. In high volume,middle- and low-end LED power supply market,there is no solution available for easyimplementation of those functions. With a newconcept to integrate smart logic functions into theNFC IC and using PWM signal to control analogdriver IC, both NFC current configuration and CLOfunctions can be enabled in analog systemswithout a need of Micro-Computer. This solution

is compliant with most analog LED driver ICs andin align with the specification from MD-SIG aboutthe common approach to wireless andmainvoltagefree programming of LED driversusing nearfield communication (NFC).

Author’s CVQi ZHU, Dr.

Dr. Zhu joined Infineon Technologies AG in 2002.He is working in PMM division as a seniorbusiness development manager. One of his focusarea is developing smart NFC solutions forlighting and industrial applications. With morethan 15 years professional working experience insemiconductor industry, Dr. Zhu has solidexperiences in business development, innovationmanagement and management of complexproduct development projects. Dr. Zhu owns MBAdegree from Collége des Ingénieurs (CDI), Paris,France and Ph.D. of Optical Engineering fromZhejiang University, China.



OrganisationInfineon Technologies

Infineon Technologies AG is a Germansemiconductor manufacturer founded on 1 April1999, when the semiconductor operations of theparent company Siemens AG were spun off toform a separate legal entity. As of 30 September2018, Infineon had 40,100 employees worldwide.In fiscal year 2018, the company achieved salesof e7.599 billion.

On 1 May 2006, Infineon’s Memory Productsdivision was carved out as a distinct companycalled Qimonda AG, which at its height employedabout 13,500 people worldwide. Qimonda waslisted on the New York Stock Exchange until 2009.



Clock-Driven Control inCombination with a Linear LEDStrip for Human Centric Lighting

Roland MICHAL, Dr.CTOBILTONIndustriestraße 35760 SaalfeldenAustria

Co-Author(s): Franz Witthalm

AbstractHuman Centric Lighting is a break-thru technologyin General Lighting where two color temperaturesare tuned in accordance to the natural day lightcycle. The physiological impact on the well-beingof humans is very well know. However most of thelighting applications are still not using HumanCentric Lighting mainly because of cost reasons.

In this paper we are presenting an interface forhuman centric lighting which is an integrated partof a linear LED luminair. This interface isclock-driven and also adjusted to an internalcalendar. Therefore, it follows automatically thenatural day light cycle without the need of anyexternal control. In combination with an integratedlight sensor also geographical impacts on thenatural day light cycle can be recognized andcompensated. The function of this interface istransparent for any external lighting control. Thismeans dimming is still determined by anone-channel controller.

With the combination of such a clock-drivencontrol and an advanced linear LED strip wepresent a new technical approach how HumanCentric Lighting can become an integrated part forillumination under special consideration of totalcosts. We also discuss some extensions of thisinternal controller which makes a luminair tobecome a smart illumination device.

Author’s CVRoland MICHAL, Dr.

Roland Michal has 20 years’ experience in thelighting industry. His responsibilities in the lightingindustry were leading positions operation andtechnology. He was working with light sources,control gears, luminairs and light application.During all this time his focus was close to the LEDtechnology for general lighting. Currently RolandMichal is CTO of Bilton International, an Austriancompany developing and manufacturing linearLED lighting. The core products of the companyare flexible linear LED-tapes.

OrganisationBILTON

BILTON International is the full-range supplier ofhigh-quality and durable linear LED solutions withintelligent lighting management systems. Thecompany was founded in 2009 by Patrick Müller inSaalfelden, Salzburg. Today BILTON is aninnovation leader on the market and producesand develops LED modules in Austria. BILTONsees itself as a project and system partner forarchitecture, trade and industry.





Miniaturization of LED Drivers andIntegration of Connectivity

Laurent JENCK, MBAVice President Marketing and Business DevelopmentERP Power490 S Price Road, Suite 302Chandler AZ 85286USA

AbstractThe efficacy of mid power LEDs is driving indoorlighting solutions power consumption down to anarea where the driver either dominates the size orthe mains performance is not standardized. Theupcoming standards in the US and in Europe willstart to end the lively discussion about PF andTHD sub 25W.

In 2018 ERP has started to introduce first highdensity constant voltage LED driver. In this lectureERP will Introduce a new technology for constantcurrent application, how new standards for LEDdrivers and downsizing can be amalgamated withby keeping the key attributes of a highperformance LED solution.

Beyond downsizing there also is a need to enablehigher functionality and connectivity mirrored bynew specifications for wired and wirelesscommunication. During the second part of thislecture ERP will discuss the impact of newstandards and how such complexity of thedesigns can be integrated into the same highdensity driver in order to enable communicationtechnologies such as DALi2 or Bluetooth mesh.

Author’s CVLaurent JENCK, MBA

Laurent has 28 years of experience in productmarketing, business and operations management.He is currently the Vice-President of businessdevelopment and marketing at ERP Power, wherehe drives the expansion of customers and theproduct roadmap definition for ERP’s portfolio ofLED drivers and power supplies. Previously,Laurent held a variety of business managementand marketing positions in the areas of greenenergy, AC-DC power supplies, web-based circuitmodeling, DC-DC power conversion, portablesand wireless. Laurent has extensive workingexperience in the USA, Asia (China, Korea,Japan, Taiwan, etc. . . ) and Europe. Laurentreceived his MSEE degree from INSA inLyon-France and his MBA from the W.P. Careyschool of business at the Arizona State Universityin Phoenix, Arizona, U.S.A.



OrganisationERP Power

ERP designs and manufactures small, smart andconnected LED drivers. Established in 2004, andheadquartered in Moorpark, CA, ERP owns andoperates its own ISO 9001 certified manufacturingfacility to ensure quality of design, sourcing,production and testing. ERP brings smart,connected and secure lighting to the world sopeople can enjoy engaging, interactiveexperiences with light. Research shows LEDlighting is the most commercially-viable approachto reducing energy consumption and utility costsnationally and globally. Our industry-leadingdrivers and power supplies are compact, offerextensive dimmer capability, wireless controls,programmable output and high efficiency–all at acompetitive cost. Our products are rooted in theexpertise of ERP co-founder and CTO MichaelArcher, who changed the computing industry bydesigning ever-smaller power electronics fornotebooks, desktops and servers from companieslike Apple, Dell, HP and IBM. Now, we’re focusedon powering what we call the Internet of Lights.


Quality and Testing I–II

138 Software for Detection of Color Defects in Light Beamby Saitgalina Azaliya KAMILOVNA, MSc, LLC - Lighting Technologies

140 Challenges for Measuring Multichip LED Light Engines for Interior Lighting Applicationsby Mete MUSLU, BSc, Ozyegin University

142 Automatized Lighting Audit: Development of a Robotic Illuminance Meterby Péter CSUTI, PhD, University of Pannonia

144 Increase Product Quality with Reduced Effort: Best Practice in Photometric Measurement of LEDLuminairesby Simon RANKEL, Dr., Ophir Spiricon Europe, MKS Instruments

146 New EU Energy Consumption Regulation and Their Impact on Testingby Fabian FLIGGE, DI, TÜV SÜD Product Service


Software for Detection of ColorDefects in Light Beam

Saitgalina Azaliya KAMILOVNA, MScIllumination Optics Design EngineerLLC - Lighting Technologies2B, Otradnaya Street127273, MoscowRussia

Co-Author(s): Dmitrii S. Leskin, Daniil A. Drygin

AbstractMost of the presented LED sources have angularand spatial non-uniformity of correlated colortemperature (CCT). Therefore LED andsecondary optics combination may lead tofollowing problems on illuminated area: colornon-uniformity, ‘yellow rings’, chip image, spilledlight, unwanted patterns. Engineer must chooseproper secondary optics to reduce these defectsduring optical design process. Today it is possibleto use professional simulation software to controland calculate color when creating customizedoptics. However, there is no such option forchoosing optics from catalogues from variety ofthe suppliers of optical components. Comparingdozens of combinations by eye bringsnon-objective conclusions. Moreover, there is nostandard methodology or instrument for thequality evaluation of illumination spot. Definitecriteria and digital instrument are required.Developed image processing software works withhigh definition images, which allows preciseanalysis of the illumination spot. Images can betaken by simple camera or even from a web-site.The software allows analyzing luminaire colorperformance, comparing multiple images at onceand forming photo-bank of solutions. Thisinstrument is developed to help controllingluminaire quality before bringing to a customerand to reduce time of the design process. Thepaper demonstrates this technique’s potential forevaluating illuminated surface quality inapplication area such as museum, architecturaland accent lighting.

Author’s CVSaitgalina Azaliya KAMILOVNA, MSc

2018 – till now Optical engineer – Optics for LEDlighting, LLC “Lighting Technologies IGC”; 2015–2017 Master’s degree in Optical Engineering,ITMO University, Russia; 2016 –2017 AcademicExchange Program Institut d’Optique GraduateSchool, Palaiseau, France; 2011 –2015Bachelor’s degree in Optical Engineering, ITMOUniversity, Russia.

Dmitrii S. LESKIN

2013 – till now Optical engineer – Optics for LEDlighting, LLC “Lighting Technologies IGC”; 2010 –2013 “SUKHOI Design Bureau” Optical engineer– aircraft optical-electronic systems; 2010National Research University "Moscow PowerEngineering Institute", Radio Engineering andElectronics, Engineer on specialty: Quantum andOptical Electronics.

DANIIL A. DRYGIN

2016 – 2020 Dept. of Applied Optics, NationalResearch University ITMO


Quality and Testing I–II 139

OrganisationLLC - Lighting Technologies

Lighting Technologies is an InternationalManufacturer, Supplier and Designer ofinnovative, energy-efficient lighting solutions withSales Offices and Production facilities acrossEurope, Russia, the Middle East and Asia.

Company Facts and Figures: Range of Products9,000 luminaires; Production Space – 84,000sq.m.

International Sales with local Presence Our Salesoffices are located across Europe, Russia, theCIS countries, and India with salesrepresentatives available in your region or throughour Export Sales Team based in Moscow. The LTProduction network includes facilities in Spain,Ukraine, Russia, and India. Working closely withIndustry stakeholders; Architects, Designers,Builders, and Influencers, our products are idealfor Projects. Additionally, we work closely withDistributors and Dealers.

Innovative and diverse Portfolio for every LightingSolution Lighting Technologies’ product portfolioincludes over 9,000 different luminaires designedto optimally meet your lighting requirementsacross a range of applications including: Indoor,Outdoor, Commercial Office and Trade, Industrial,Residential, and Sports facilities.

Best in Class Manufacturing using Tier 1Components and Equipment Research andDevelopment, translated into innovative, efficientand price competitive Designs, and brought to lifein Modern Production facilities, enables LightingTechnologies to lead the Industry’s evolution toadvanced luminaires and solutions. Our in-houseIndustrial Design Bureau, in cooperation withleading European designers and consultancies,continuously studies the markets, materials,methods and applications to deliver the luminairesour customers envision. General andspecial-purpose luminaires are manufactured bythe company’s facilities in Ryazan (Russia),Slavutich (Ukraine), Vinaros (Spain) andBangalore (India). Our production facilities havestate-of-the-art equipment including Surfacemounting (SMD) an aluminum foundry, 3Dprinting, and an advanced Design / Testlaboratory. Finished products undergo stringentquality testing.

A Commitment to high Quality and Sustainable

Development Lighting Technologies understandsthe paramount importance of Quality to ourCustomers and Partners. We actively embracethis commitment through active participation inkey Industry Quality Standards.

Additionally, we also understand the value ofsustainable development for our Partners andalso as a member of the world community. Thismeans the introduction of “green” technologiesthat enable higher energy efficiency, wastereduction, and environment-friendly productfeatures. Our Design Teams are experienced andaccomplished using LEED and BREEAM projectdesign methods and criteria.



Challenges for Measuring MultichipLED Light Engines for InteriorLighting Applications

Mete MUSLU, BScStudentOzyegin UniversityOrman Street, Çekmeköy Campus Nisantepe District34794 Çekmeköy - IstanbulTurkey

Co-Author(s): Onuralp Isil, Mehmet Arik

AbstractAs LED systems have been evolving today in agreat number of niche applications includingautomotive lighting, water purification, and skinimaging etc., extensive studies of scientists andengineers in the field have been constantlylooking for ways to reduce generated heat loadsand maximize the light output to reach the highestefficiency ratios. While the current systemsdeveloped over the last years achieved to reacheven a 40% LED light efficiency, a higher portionof the electrical input energy of LEDs is stillproduced as heat and it hinders their developmentpotential. In addition, the compact size of the LEDsystems poses some challenges to the reliablecharacterization of their performance at lowuncertainties. Especially, the performanceconsiderations associated with the thermal loadsover a limited size of LED chips require theeffective characterization of these systems forvarious operational conditions. One of thetechniques used for this purpose is that an LEDpackage is characterized by a decrease in forwardvoltage with increasing junction temperature. AsLEDs are operated at higher junctiontemperatures, the amount and quality of the lightdeteriorates significantly, and the less efficient useof the LEDs results in additional operating costsand reduced lifetime of LEDs. In fact, accurateidentification of thermal behavior of multichip LEDlight engines is one of the essential tasks towards

improving the design of LED systems. If thermalcharacterization of LEDs is accurately done,performance parameters of each LED package ismore reliably optimized to yield the highestpossible performance ratios. Thus, this studyintroduces a novel, highly sensitive junctiontemperature measurement system for thermalcharacterization of LEDs. The proposed system isused for both single LED characterization as wellas a multichip LED characterization. The resultsof white light LED engines are demonstrated overthree different product lines and the measurementcapability of the system is discussed.



Author’s CVMete MUSLU, BSc

M. Muslu received the B.Sc. degree in mechanicalengineering from Ozyegin University, Istanbul. Heis currently pursuing his M.Sc. Degree inmechanical engineering in Ozyegin University. Mr.Muslu was a member of a competition team whoreceived the “Best Commercial Potential Award” indeveloping a novel thermal connector designsponsored by U.S. Defense Advanced ResearchProjects Agency (DARPA) in 2015. From 2014 topresent, he is a research assistant in EVATEG(Energy Efficient Lighting Technologies Research,Development, Education and DemonstrationCenter). His research interests includeoptoelectronics and thermal management ofelectronics.

Onuralp ISIL

Onuralp Isil was born in Istanbul (Turkey) in 1994.He completed his undergraduate education atOzyegin University, Department of MechanicalEngineering (2017). He continued his graduatestudies at Ozyegin University, Department ofMechanical Engineering. His current study field isin the alternative cooling, specifically cooling withsynthetic jet actuators. Along with the GraduateProgram working in heat transfer studies, heworks at Rota Teknik, an engineering company inhydraulic, pneumatics and automation sector, as amechanical design engineer and project manager.

Mehmet ARIK, Prof. Dr.

Dr. Arik received the B.Sc. degree in mechanicalengineering from Istanbul Technical University, theMSc degree in mechanical engineering fromUniversity of Miami, and the PhD degree inmechanical engineering from the University ofMinnesota in 2011. He has worked at the GeneralElectric Global Research Center in Niskayuna,NY, on thermal management of electronics as asenior research scientist and program leaderbetween 2000 and 2011. Dr. Arik is currentlyProfessor of Mechanical Engineering at OzyeginUniversity. He is also the independent member ofthe board of directors at ASELSAN (TurkishMilitary Electronics Industry).

OrganisationOzyegin University

The university was founded by the Hüsnü M.Özyegin Foundation, and its establishment wasapproved by Foundation Act No. 5656, publishedin the Official Gazette No. 26526 on May 18,2007.

Özyegin University admitted its first class ofstudents to the department of BusinessAdministration and started its education inSeptember, 2008.

According to the "Most Popular Universities"survey conducted by Bloomberg Business Weekin 2014, Özyegin ranked 3rd among foundationuniversities, following Sabancı and Koçuniversities, respectively. Özyegin University wasalso placed 4th among all universities in the onlinesurvey conducted with 15.700 students from 89universities between January and May 2014.

Özyegin University ranked 6th among the MostEntrepreneurial and Innovative Universities ofTurkey and rose in the ranking compared to 2013.



Automatized Lighting Audit:Development of a RoboticIlluminance Meter

Péter CSUTI, PhDResearch FellowUniversity of PannoniaEgyetem u. 10Veszprém 8200Hungary

Co-Author(s): Dávid Noel Tóth, Róbert Nagy, Ferenc Szabó

AbstractLight and Colour Research Laboratory, Universityof Pannonia, Veszprem, Hungary The illuminationmeasurement tasks of today didn’t changecompared to decades earlier. A well workingilluminance meter developed in the lastmillennium can still be used and also according tothe trend of recent years, more and moremeasuring devices do capture other measures(i.e. spectral power distribution, flicker) of themeasured light. The illumination measurementtask rarely occurs as a single point measurement,but rather the measurement of a whole grid has tobe done and has to be logged in the same time.To achieve this in an automated way we’vedeveloped an illuminance meter robot which findsthe given measurement positions both indoor andoutdoor environments for itself. . In addition, amore difficult task arise when measuring theillumination not only in the horizontal plane, butwith photometer in the vertical direction of thesensor of the measuring instrumentperpendicularly in four or more directions like inpedestrian crossings or camera directionalilluminance measurements in case of stadiuminstallations. This can be done in our case by atwo axis goniometer installed on the robot. Byusing today’s technical capabilities it is possible tomeasure the illumination of a room or even awhole outdoor area in a fully automated way.Therefore, our aim was to develop a roboticilluminance meter that moves independently

between two measurement points by positioningitself and arrives at the predeterminedmeasurement spots to perform the requirednumber of illuminance measurements withpractically any photometer direction. In addition tothe measurement results, it stores the positioncoordinates, the precise two-axis orientation ofthe photometer sensor, the inclination andgeographical direction of the robot and themeasurable environmental parameters. In thepresentation the stages of the whole developmentprocess will be introduced, highlighting thespecific goals and presenting the most interestingengineering challenges that have been arisenduring the development.



Author’s CVPéter CSUTI, PhD

Dr. Péter Csuti is working as a research fellow atthe Light and Colour Science ResearchLaboratory at University of Pannonia. He isdealing with the problems and solutions ofphotometry and colorimetry for more than 15years. His field of expertise is goniophotometry,spectroradiometry and the questions of the colourperception of the human visual system especiallywhen using LEDs as sources of light. He ismember and secretary of the Hungarian NationalCommittee of the CIE and member of the LightingSociety of Hungary.

OrganisationUniversity of Pannonia

The University of Pannonia (University ofVeszprém until March 1, 2006; Hungarian PannonEgyetem, formerly known as Veszprémi Egyetem)is a university located in Veszprém, Hungary. Itwas founded in 1949 and is organized in fivefaculties: Arts and Humanities, Engineering,Agriculture, Economics and InformationTechnology. The university was founded in 1949.In the beginning it worked as a regional faculty ofthe Technical University of Budapest. In 1951, itbecame independent under the name ofVeszprém University of Chemical Engineering.From 1991, the university has been called theUniversity of Veszprém.

The university first offered courses in four areas ofChemical Technology: Oil and Coal Technology,Electrochemical Industry, Inorganic ChemicalTechnology, Silicate Chemistry. From themid-1960s two courses — Nuclear Chemistry andTechnology, Process Control and SystemEngineering — became part of the ChemicalEngineering education in Veszprém. Thechanging and increasing requirements set for thegraduates persuaded the university to continuallyreform and restructure its education activity. As aresult, new courses were introduced:agrochemistry in 1970, Chemical EngineeringManagement in 1973, higher level foreignlanguage teaching in 1983 and Instrumentationand Measurement Techniques in 1984.

The restructuring process accelerated in the pastfew years and this resulted in the renewal andexpansion of the university’s education profile. To

respond to the society’s growing demand forcomputer professionals, with the help of externalfinancial support and the university’s scientificexpertise, the education infrastructure of theInformation Technology and Automation courseshas been created.

As a result of the increasing openness ofHungary, the need for teachers of foreignlanguages increased considerably. Havingrecognized this, the university introduced TeacherTraining courses for teachers of English and thenfor teachers of German and French and theeducation of philologists in specialties: Hungarianlanguage and literature, theatre sciences. etc. Inthe meantime, the education of Catholictheologists started in the form of a regional facultyof the Theologic College. Simultaneously, theFaculty of Teacher Training (now: Faculty of Arts)and the Faculty of Engineering were establishedand the name of the university was changed toUniversity of Veszprém. The centre of scientificand cultural life, the University of Veszprém withthe 200-year-old Georgikon Faculty of Agricultureturned into a three-faculty university on 1 January2000. On 1 September 2003, two new facultieswere created: the Faculty of Economics and theFaculty of Information Technology. Every year theUniversity of Pannonia hosts national andinternational research conferences, whichstrengthen its international reputation. In the nearfuture, the offer will include new faculties and newschools. The leaders of the institution strive toturn the university into the educational,intellectual, and research centre of theTransdanubian region and to help find its place inEurope.



Increase Product Quality withReduced Effort: Best Practice inPhotometric Measurement of LEDLuminaires

Simon RANKEL, Dr.LED Business Development ManagerOphir Spiricon Europe, MKS InstrumentsGuerickeweg 764291 DarmstadtGermany

AbstractProcess efficiency plays a key role in thedevelopment of new LED luminaires as well as inproduction environments. Due to the vast amountof options the LED technology offers to designers,fast and accurate measurement of thephotometric quantities is gaining more and moreattention. A novel photometric measurementsystem using solar panels is breaking the groundin the manner on how we can measure keylighting parameters in one step.

Since the first announcement of this innovativetechnology the product portfolio has broadened.The number of applications we can address hasthus increased and initial hurdles in accepting thesystem have been overcome by the lightingmanufacturers. In the article, best practice - whichpaved the way for the establishment of thisphotometric praxis - will be shown by introducingseveral case studies. The comparison with someof the long recognized photometric methods isshowing the maturity of the system and itsusability.

Futhermore, the possibility of the system to beadequately integrated into automated productionprocess and its future development challenges(e.g. further hybrid combination developments for

the rising lighting applications) are defined anddiscussed.

Author’s CVSimon RANKEL, Dr.

Simon Rankel studied physics and holds a Ph.D.from the University of Ljubljana on the topic ofLED and OLED lighting in urban lighting design.He has more than ten years of experience in theLED lighting industry. After his studies in Ljubljanaand Stockholm he started his career as R&Dengineer and lighting designer and has beensince then involved in international lightingbusiness. Today, his focus is on future-orientedtechnologies for the photometric measurement ofSSL lighting. Simon is LED business developmentmanager at laser and light measurementspecialist company Ophir MKS Instruments.



OrganisationOphir Spiricon Europe, MKS Instruments

Established in 1976, Ophir Optronics is a globalleader in precision infrared optics, photonicsinstrumentation and 3D non-contact measurementequipment. The company develops, manufacturesand markets top quality products that are basedon the most advanced technologies and arerenowned for their quality and reliability. OphirOptronics is headquartered in Jerusalem, withaffiliates in the US (Massachusetts and Utah) andIsrael, and sales offices in the US, Japan andEurope, and is part of MKS Instruments.

MKS Instruments, Inc. is a global provider ofinstruments, subsystems and process controlsolutions that measure, monitor, deliver, analyze,power and control critical parameters of advancedmanufacturing processes to improve processperformance and productivity for our customers.Our products are derived from our corecompetencies in pressure measurement andcontrol, flow measurement and control, gas andvapor delivery, gas composition analysis, residualgas analysis, leak detection, control technology,ozone generation and delivery, power, reactivegas generation, vacuum technology, lasers,photonics, sub-micron positioning, vibrationcontrol, optics and laser-based manufacturingsolutions. We also provide services relating to themaintenance and repair of our products,installation services and training. Our primaryserved markets include semiconductor, industrialtechnologies, life and health sciences, researchand defense.



New EU Energy ConsumptionRegulation and Their Impact onTesting

Fabian FLIGGE, DIProduct SpecialistTÜV SÜD Product ServiceDaimlerstrasse 1185748 GarchingGermany

AbstractBeginning of 2019 the European database for ErPrelevant products started and will be publicavailable from April 2019 on. First we will have alook to this database and the responsibilities forsuppliers and retailers. Then we will continue andanalyse new regulations of the EU. Not onlyrepairing is now a topic within new regulations in2019, a few new regulations is set out and willchange a lot in the market. We will show anoverview of new regulations of the EU, e.g. withexternal power supplies and will then focus on thecoming changes in the lighting sector. Most visiblewill be the change in the energy label design andalso the changes of the energy classes, probablyin Sept 2021. Also, there are new parameters tobe shown (like R9) and computations of theenergy efficiency index will change. We will focusnot only on the new parameters to be measuredbut we will also show the challenges formanufacturers that are coming by switching theinformation and documentation requirements fromEcodesign regulation to Energy Label regulation.Additionally, we will finally show an automatedway of getting the lifetime view for light sources atour lab in Garching.

Author’s CVFabian FLIGGE, DI

2010-now: TÜV SÜD PRODUCT SERVICEGMBH; 2007-2010: DELOINDUSTRIEKLEBSTOFFE GMBH & CO KGAA;2001-2007: Technische Universität München

OrganisationTÜV SÜD Product Service

Everyday around the world, customers come toTÜV SÜD with questions. “Can we make it better,more efficient, secure and sustainable? How dowe strike the balance between quality, profitabilityand sustainability?”

Beyond solving problems, TÜV SÜD is dedicatedto adding tangible economic value to ourcustomers. Through our portfolio, we optimise ourcustomers’ operations, managing risks whileenabling them to access global markets. Wepartner our customers with early consultation andcontinuous guidance to make sustainableprogress a reality.

Headquartered in Munich, Germany and foundedin 1866, TÜV SÜD is one of the world’s leadingtechnical service provider of testing and product



certification, inspection, auditing and systemcertification as well as training solutions.

Today, we are represented by about 24,000employees across more than 1,000 locations,partnering clients wherever they are in the world.Our community of experts is passionate abouttechnology and is inspired by the possibilities ofyour business. United by the belief thattechnology should better people’s lives, we workalongside our customers to anticipate andcapitalise on technological developments,enabling progress for businesses and the society.


Quality Engineering I–II

150 Analysis of Improved SAC+ Solders for CSP LEDs on Al-IMSby Gordon ELGER, Prof., Technische Hochschule Ingolstadt

152 Transient Infrared Thermography for Thermal Conduction Path Analysis of LED Modulesby Peter W. NOLTE, Dr., Fraunhofer Application Center for Inorganic Phosphors

154 Plasma-metalized Flexible PCBs for LEDs Applicationsby Yaser HAJ-HMEIDI, MSc, LUMITRONIX

156 An Evaluation Guide for Blue Light Hazardby Denan KONJHODZIC, Dr., Instrument Systems

158 Enhanced LED Lighting Modules Protection with New Silicone Encapsulantby Thierry COOREMANS, MSc, DOW SILICONES

160 Predicaments & Strategies in the Development of Intelligent Lightingby Sandy ZHONG, MSc, Lifud Technology


Analysis of Improved SAC+ Soldersfor CSP LEDs on Al-IMS

Gordon ELGER, Prof.ProfessorTechnische Hochschule IngolstadtEsplanade 1085049 IngolstadtGermany

Co-Author(s): Alexander Hanss

AbstractReliability remain a serious concern whensoldering modern Chip Size Package LED(CSP-LEDs) on Al- IMS in especially forautomotive applications. Due to the mismatch ofthe coefficient of thermal expansion between theAl metal core and the semiconductor materialsused in most of the CSP packages (AlN, Al2O3,silicon and GaN) large cyclic thermomechanicalstress is generated. This stress is causing cracksin the solder joint by thermomechanical fatiguewhich are the most common failure mode. Thisfailure mode is reduced when using improved tinsilver copper solders, so called SAC+ solders, forwhich the yield strength and thethermomechanical fatigue resistance of thesolders are improved by additives. However, independence of the CSP design a second failuremode on the CSP package can be observed likedelamination or cracks using those solders. In thispaper standard ceramic based CSP and new CSPtechnologies were the LED chip is mounteddirectly onto the Al-IMS are investigated. Thedifferent CSP technologies are analyzed. TheCSP are soldered on Al-IMS using different SAC+solders from different suppliers. Hard and ductileSAC+ solders are selected. Also soft pure Indiumsolder and classic eutectic PbSn solder is usedfor benchmark. Temperature shock test areperformed. The crack formation is observed byautomatic transient thermal impedancemeasurements. As failure criterion on the oneside a 20% increase of the thermal resistance ofthe LED in the module and on the other side thedetection resolution of 0,1K/W of the transient

impedance measurement of the LEDs wasapplied. It could be revealed that in dependenceof the CSP design and the solder already a chipsize package size of approx. 1mm x 1mm can becritical following the challenging test requirementfor automotive AECQ101. Figure 1 Weibull plot ofa 1mm x 1mm CSP on Al-IMS using differentsolders in a temperature shock test (-10◦C /125◦C)

Author’s CVGordon ELGER, Prof.

Professor at University of Applied ScienceIngolstadt (Technische Hochschule Ingolstadt),Germany Gordon Elger is a research professor atthe university of Applied Science in Ingolstadt formicroelectronic packaging and manufacturingtechnologies. His research team is focusing onLED and high power electronic packaging forautomotive application and development ofmeasurement and test methods for reliability andquality insurance. In especially one focus istransient thermal testing and heat management.Gordon Elger made his PhD at the Free Universityof Berlin and worked afterwards at differentcompanies and institutes in the field ofoptoelectronic, MEMS, HF and LED packaging(Royal Philips, Hymite GmbH, Fraunhofer IZM).


Quality Engineering I–II 151

OrganisationTechnische Hochschule Ingolstadt

Our institution is a dynamic and highly committeduniversity of applied sciences. Since itsfoundation in 1994, THI offers a wide range ofprograms that prepare students to use scientificmethods in their professional career. Excellentlearning and working conditions create thenecessary framework for a short period of studyand a high level of success.

The impressive campus, completed in 1999, isdefined by its glass architecture, large greenspaces and the functionality of the buildings. Theexpansion of the campus was inaugurated in 2014to provide more space for our increasing numberof students. The first construction phase includedtwo buildings for lecture and seminar rooms,laboratories and offices, as well as a spaciousbistro-café.



Transient Infrared Thermographyfor Thermal Conduction PathAnalysis of LED Modules

Peter W. NOLTE, Dr.Team LeaderFraunhofer Application Center for Inorganic PhosphorsLübecker Ring 259494 SoestGermany

AbstractIn the past years, LEDs have undergone asignificant increase in performance and efficacy.Though modern white LEDs are highly efficient ingenerating illumination, a significant part of theelectrical energy is converted to heat. A properthermal management is thus one of the keyissues. It is of great importance to consider thethermal losses in the design of cost efficient anddurable luminaires, in particular in thedimensioning of appropriate heat sinks ifnecessary. (Note that the lamp housing oftenserves as a heat sink.) The thermal load is often alimiting factor in the performance of such aluminaire. As the LED manufacturer alreadyoptimizes the inner structure of the LEDs, theluminaire manufacturer is responsible for thechoice of a suitable printed circuit board (PCB) aswell as a proper thermal contact between allcomponents.

A common way to qualify the thermal conductionpath of LED modules is to measure theoperational temperature of the LEDs at specificreference points. While thermocouples are widelyused for this purpose, infrared thermographyoffers a contact-free and efficient method toobtain the required temperature information. Incontrast to thermocouples, thermographicimaging allows to measure the temperaturedistribution over a relatively large area. Thoughthe static thermographic images are used todetect hotspots and temperature gradients, theyare less helpful for the analysis of the thermal

conduction path between LED and the heat sink(or the lamp housing).

In this work, the potential of transient temperaturemeasurements by infrared thermography isevaluated. For illustration, different sets of LEDmodules are investigated. The modules areoperated on a temperature controlled heat sink.After the thermal equilibrium is reached, thepower supply is switched off and the cooling curveis recorded by a high-speed thermographycamera. Subsequently, these images arenumerically analyzed to reveal the singlecomponents of the thermal conduction path. Thistechnique allows the analysis of slight changeswithin the LED-solder-PCB stack. Hence,inhomogeneous or defective soldering that leadsto insufficient thermal contact between the LEDand the board can be identified.



Author’s CVPeter W. NOLTE, Dr.

Peter W. Nolte obtained his master of science inphysics from the University of Paderborn,Germany, in 2007. Subsequently, he started towork in the field of photonic crystals and siliconphotonics at the Martin Luther University ofHalle-Wittenberg, Germany, where he defendedhis PhD thesis in 2015. In 2014, he moved to theFraunhofer Application Center for InorganicPhosphors in Soest, which is a branch lab of theFraunhofer Institute for Microstructure of Materialsand Systems IMWS in Halle (Saale). Here, heleads a research team working on the reliability oflight emitting diodes and phosphors.

OrganisationFraunhofer Application Center for InorganicPhosphors

Light emitting diodes (LEDs) are the future oflighting technology. Modern high-power LEDsoffer numerous advantages in terms of efficiency,compactness, lifetime and environmentalprotection as compared to conventionalincandescent and energy-saving lamps. Newchallenges not only consist of improving the LEDchips, but also in the phosphors andencapsulation materials. In addition to theefficiency of the LEDs and the phosphor, reliabilityand colour stability are also important aspects.The thermal management in LEDs and LEDmodules is of crucial importance. Rising demandsin intelligent lighting systems, especially thosewhich are particularly adapted to the respectiveneeds of the user or application, are triggeringgreat amount of interest in starting new researchprojects. In the field of phosphors, our range ofservices consists of the evaluation, design, anddevelopment of phosphors and phosphor systemswith the aim of improving their efficiency, reliability,and colour stability. In order to do so, we applycomprehensive optical and spectroscopicanalyses, thermal and microstructuralcharacterizations at the Fraunhofer ApplicationCenter in Soest as well as investigations into thelong-term stability of light-emitting diodes andlighting elements. The output of our researchactivities have led to phosphor-doped glasses andglass ceramics for lighting and lighting technologyas well as medical diagnostics. Further researchfields include the characterization of optics for

light-emitting diodes as well as themicrostructuring of optics and phosphors.

Range of services: The Fraunhofer ApplicationCenter in Soest provides tailor-made services asper customer requirements. The aim is to supportthe competitiveness and the future of the lightingand its associated industry as well as relatedareas. The optimization of materials, components,and systems are aimed to contribute to thesuccess of the project partners. The focusremains the collaboration of both parties in theconcept and applications.



Plasma-metalized Flexible PCBs forLEDs Applications

Yaser HAJ-HMEIDI, MScDevelopment EngineerLUMITRONIXBrunnen Strasse 1472379 HechingenGermany

AbstractLumitronix in collaboration with theirhigh-technology oriented partners havesuccessfully achieved the implementation of aserial production line of metalized flexible printedcircuit boards (PCBs) for LEDs applications. Thepioneer technique is based on the latest state ofthe art in the field of plasma metallization atatmospheric pressure. It required an adhesivelayer on the substrate e.g. silver on the paperrolls, this fabrication step is optimized to achieve avery rapid rotation rate with the maintenance of areliable coated layer. Such a method enablesdeposition of circuits on almost any flexiblesurface for a subsequent soldering of electroniccomponents. Particularly, soldering the LEDs onflexible PCBs opens a wide range of promisingapplications at large scale of production. Thechallenges of the transformation of thisarchitectural engineering process have beenovercome in the Hechingen-based LED CompanyLumitronix.

Over one decade of work on the research anddevelopment has been invested for achieving thisunique technology by an Austrian company. Thepioneering process was initially applied in themedical field. The implant parts or prostheseswere coated with bone powder for predefined timeaccording to the required thickness of the coatedlayer. This method is very beneficial in order toreduce the likelihood of the rejection of implantsby the human body. This high technology wastransferred to the electronics industry and wasfurther developed with digital direct metallization.

In this distinguished type of metallization, aconductive metal (most common copper) in

powder form is transported through hightemperature plasma nozzle usually in the range of10 000–50 000 ◦C. This temperature is sufficientto melt the metal and subsequently enables thedeposition of conductive layer on almost anysubstrate. The temperature of the metal particlesis reduced gradually in cascade steps to asuitable value before reaching the substrate. Thismetallization process makes the base materialconductive. Furthermore, electronic surfacemounted devices (SMD) will be soldered on thetop layer of the flexible substrate.

The pioneer technique is very beneficial forassembling electronic SMD e.g. LEDs on thesurface of variety of material. An example is anilluminated wallpaper, which are only oneutilization of this innovative invention. Furtherpossible application is the use of inexpensiveplastic as a base material coated with a wafer-thinlayer of aluminum. Large area for a certainapplication can be envisaged, such as metalizedpaper equipped with LEDs in order to producehuge backlit posters or banners for exhibitionstands that can be conveniently removable andeventually reusable. Moreover, textiles can beprovided with a conductive surface and thenindividually fitted with LEDs and other electroniccomponents. The applications of such a hightechnology are quite distinctive and are almostinexhaustible. This paper will cover the latestresults of the evaluation of the new LED productsobtained by the new assembly line. Furthermore,the new features will be also investigated andcovered in the final paper.



Author’s CVYaser HAJ-HMEIDI, MSc

The passion for optoelectronic and electronicaccompanied me throughout my carrier. I amalways curious about electronic devices, and howthey function. Therefore, I studied physic ofsemiconductor, and finished successfully mydiploma in physic in 2006. Furthermore, Icompleted my master’s degree in electricalengineering (micro and optoelectronic) in 2010,with special focus on the manufacturingprocesses of light emitting devices,complementary metal–oxide–semiconductordevices and micro-electro-mechanical systems. Ihad also the privilege to do research onnanotechnology for optoelectronic applications,and some of the obtained results are alreadypublished. Currently I continue my researchactivity at LUMITRONIX R© LED-Technik GmbH inthe development and research department.

OrganisationLUMITRONIX c©

LUMITRONIX is the specialist for LED lightsolutions. We were a part of the early success ofLEDs and have extensive application knowledgefrom a wide range of sectors. As a competentpartner of LED technology, LUMITRONIX becamethe official distributor of Japanese world LEDmarket leader Nichia for Germany and since 2016for all of Europe. As a result, LUMITRONIX hasone the widest available LED assortments amongall leading manufacturers for your special lightsolution. Since 2010, LUMITRONIX has producedLED modules developed in-house in astate-of-the-art production facility. These moduleshave been used successfully in a wide range ofapplication and developed specifically to meetcustomer specifications. Regardless of which lightsolution you have your eye on – we implementyour requirements in high-efficiency LED lightsolutions with our extensive expertise and assistevery step of the way from the initial planning tothe serial production.



An Evaluation Guide for Blue LightHazard

Denan KONJHODZIC, Dr.Product ManagerInstrument SystemsKastenbauerstrasse 281667 MunichGermany

AbstractThe rapidly growing significance of modern solidstate lighting (SSL) technology in our dailyworking and living environment raises importantsafety issues, such as the photobiological safetyand the blue light hazard (BLH) in particular. Theoriginal International Standard IEC 62471 wasprepared as a Standard CIE S 009 and givesguidance for evaluating the photobiological safetyof lamps and lamp systems including luminaires.It assigns high demands to measurementequipment and procedures to ensure a reliableevaluation of photobiological hazards and inparticular the assessment of the BLH risk classesof light sources. Blue light can causephotochemical damages of the retina and possiblyleads to a degeneration of the macula. Thecorresponding weighting function covers thewavelength region between 300 nm and 700 nmand has its maximum around 435–440 nm.Considering the distinctive blue peak of whiteLEDs, the question of the hazardousness of SSLsources arises. Depending on the radiance levels,the BLH sensitivity, and the exposure times theIEC 62471 assigns light sources to four riskgroups from 0 (exempt) to 3 (high risk).

Additionally, the IEC Technical Report 62778explains how to apply the IEC 62741 for simpleassessment of the BLH of lamps and luminaireswith visible radiation. However, this has not yetbecome a standard. Currently, worldwide effortsare underway to elevate this report to a newstandard and add more detailed measurementprocedures for BLH assessment that areaccessible to a broader community.

A correct risk assessment is a challenging task for

the experimenter as one has to decide on thesuitable test equipment. Today, the measurementinstrument of choice is often an arrayspectrometer instead of the hard-to-handle doublemonochromator suggested by the standard IEC62471. But even high-end array spectrometersmust have advanced stray light correctionmethods to achieve the required high dynamicmeasuring range especially in the less sensitiveblue region.

Two main measurement procedures for BLHassessment were proposed in the IEC 62471, thedirect spectral radiance measurement with anoptical system and an alternative method as anirradiance measurement performed with awell-defined field of view. Here, the measuredirradiance value is divided by the measurementfield of view to obtain the final radiance value. Thedirect spectral radiance measurement has beenrealized with a telescopic optic in combinationwith an array spectrometer calibrated on spectralradiance. Our alternative method consists of astray light corrected array spectrometer with anintegrating sphere calibrated on irradiance and atube which contains apertures necessary for thecalculation of radiance.

Both procedures have been realized, themeasurements on several samples have been(and will be) performed, and the risk groupsassigned and discussed. Additionally, someconsiderations about the risk group classificationbased on CCT (correlated color temperature) andluminance of the source, as proposed in TR62778 and further developed in the emergingStandard, will be discussed.



Author’s CVDenan KONJHODZIC, Dr.

Biography:

• Born in 1976 in Mostar, Bosnia andHerzegovina

• 1997–2003: physics studies in Duisburg,Germany

• 2003–2007: PhD thesis in the department“Optical Materials and Nanostructures” atthe Max Planck Institute in Mülheim an derRuhr, Germany

• 2007: doctoral examination at the FreeUniversity Berlin

• Since 2008: applications engineer atInstrument Systems GmbH, Munich

• Currently: product manager at InstrumentSystems GmbH, Munich

Main topics:

• LED and SSL (solid state lighting) metrology• Product management for calibrations in

photometry• Participation in the standardization bodies

of CIE, DKE and DIN

OrganisationInstrument Systems

Founded by Richard Distl in Munich in 1986,Instrument Systems is today one of the world’sleading manufacturers of high-precision arrayspectrometers as well as complex lightmeasurement systems. Our name stands forpremium class, innovative products andoutstanding expert knowledge in opticalmeasurement technology. Specialized salesengineers can be relied on to provide a solutionfor even the most demanding measurement tasks,exactly tailored to the needs of our customers.

For many years Instruments Systems has beenestablishing global standards forspectroradiometric measurement in the LEDindustry. It is involved in standardizationcommittees and associations such as DIN andCIE, and cooperates with the leading metrologicalinstitutes. Virtually all renowned companies in theautomotive and aviation industry place their trustin our measurement systems for the qualificationof lighting components and displays in the vehicleinterior or cockpit. We place the focus of our

product development on the use of our systemsnot only in lab but also in fast production tests.

More than 80% of our sales revenue is generatedabroad. Since 2012 we have been a member ofthe Konica Minolta group and benefit from aninternational network, supplemented by ourexperienced representatives. As a continuouslygrowing, medium-sized technology company westand for customer proximity and the highest levelof reliability in product quality, service andsupport.



Enhanced LED Lighting ModulesProtection with New SiliconeEncapsulant

Thierry COOREMANS, MScTS&D SpecialistDOW SILICONESParc Indstriel Zone , Rue Jules Bordet7180 SeneffeBelgium

AbstractLED luminaries in harsh environments needprotective materials that are reliable, easy toapply, and that provide robustness of cure.Professional luminaires makers were constantlylooking for solutions that help to eliminatetime-consuming processing steps and reducewaste that can occur if curing is compromised bysurface contaminants or moisture.

In response to those needs, DOWSILTM EI-2888Primerless Silicone Encapsulant, anoptically-clear silicone for professional LEDlighting that cures at room temperature, has beenlaunched in 2019. This advanced siliconetechnology provides superb optical performancewithout compromise and offers unique rheologicalproperties for use with lighting fixtures in a varietyof shapes and forms. Designed for explosionproof and high ingress protection rated luminaries,this encapsulant is a patented composition thatdoes not contain platinum– unlike other siliconesolutions currently available on the market. Thelow-viscosity silicone also dispenses readily andadheres reliably on a large range of substrateswithout sacrificing optical properties. This novelsilicone technology is an excellent choice formany professional applications, includingexplosion proof lighting, outdoor displays, andflexible and rigid LED strips.

This two-part protective material with a 1:1 mixratio cures at room temperature with optional heatacceleration. This UL 94 compliant, 100%

polydimethylsiloxane (PDMS) silicone provideseven curing and is less sensitive to inhibition, atypical issue for platinum catalysts; and materialreversion, a traditional problem in enclosedspaces at high temperatures. Furthermore, thismaterial keeps his high reliability against heat andsunlight UV exposition where typical organicencapsulant could show high degree ofdegradation. DOWSILTM EI-2888 PrimerlessSilicone Encapsulant can be applied withautomated static or dynamic metered mixing,manual mixing, or with flow, pour or needledispensing equipment.

Author’s CVThierry COOREMANS, MSc

Thierry Cooremans received his MSc in IndustrialChemistry Engineering from University ofCharleroi, Belgium (2015). He joined DowCorning Europe in 2011 and worked on varioussilicone based materials development andapplications, such as, e.g., silicone sealant &adhesives, Photovoltaïc applications beforejoining the Dow Silicones Belgium AdvancedAssembly Solution TS&D team back in 2013,helping lighting and optical companies usingsilicone in their LED lamps and luminairesdesigns, with products such as, e.g., opticalmoldable silicones, thermal interface materials,



encapsulants, adhesives and coatings for lightingfixtures protection and assembly.

OrganisationDOW SILICONES

For more than 120 years, Dow has strived tocreate value through its diversified, market-drivenportfolio of specialty chemicals, advancedmaterials, agrosciences and plastics businesses.Dow is committed to advancing science andinnovation in response to the world’s mostpressing challenges – enhancing the quality of lifefor current and future generations, while creatinglong-term sustainable value for the Company, itscustomers and its shareholders. Dow deliversdifferentiated solutions that address thesechallenges and unmet market needs byleveraging cost advantage, scale and geographicpresence, customer collaboration andindustry-leading R&D expertise.



Predicaments & Strategies in theDevelopment of Intelligent Lighting

Sandy ZHONG, MScChief Engineer of R&DLifud TechnologyBuilding F, Kutto Industrial Park, No.26 Xinhe Road, Xinqiao StreetBao’an District, Shenzhen 518104China

AbstractWith the advancement of science and technology,the quality of human life has increased. Thedemand for intelligent lighting has become evermore urgent. It has the characteristics of lowpower consumption, flexible use, convenientoperation and easy to personalize, and has greatpotential for development. However, intelligentlighting technology is still in the early stage, andthere are some problems in its development.

1. Poor interoperability: interoperability is thebasis of intelligent lighting. However, informationproduced from various devices have difficulty insharing with each other, and interoperabilitystandards of various industries are not uniform,which makes interoperability difficult and cannotfully utilize the advantages of intelligent lighting.

2. There is no unified interface standard: thephysical interface and software interface of smartproducts made by various manufacturers are notunified, limiting intelligent lighting technology frombeen mass adopted;

3. Product’s functions are not tailored to actualrequirements: At present, there are various kindsof intelligent lighting products, with huge variety offunctions, but whether it satisfy the needs ofconsumers is debatable;

4. Investment can not produce profit as it shouldhave: While the investment in R&D, production,sales and maintenance of intelligent lighting isrelatively large, profits are getting smaller. Hugeinvestment struggles to obtain profit it deserves;

5. Lack of quality assurance: intelligent lightingbrings users better experience, it require moreadvanced technology to provide this effect.However, intelligent lighting technology is still in itsearly stage, quality usually can not be guaranteed.

Measures: 1. Cross-industry cooperation is thetrend, breaking the industry barriers andestablishing unified interoperability standards arethe right way forward; 2. Compile unifiedproduction standards and enhance theinterchangeability of intelligent lighting parts; 3.Strengthen the application oriented mindset,providing users with the products they needs; 4.Reasonably plan products range to increase theproportion of service in total revenue; 5.Increasing technology investment is vital inguaranteeing good quality.



Author’s CVSandy ZHONG, MSc

1. Studied in Nanchang University from 2005 to2009. Full-time undergraduate. Majored inelectronic information engineering. Won severalscholarships during that period.

2. Studied in Nanchang Hangkong University from2009-2012. Master’s degree. Majored in testingand automation equipment. Research direction:uninterruptible power supply control algorithm.Published the paper Research on UPS inverterbased on repeated control and deadbeat control.The model was established by matlab-simulinkand M file, preliminarily verifying hardwareparameters and algorithms. Built a UPS of 1KWoutput power with the TMS320F2812 of TIcompany. Tested and verified the feasibility,superiority and rationality of the algorithm.Participated in several national fund projectsduring the period.

3. Worked in the Advanced Research Departmentof MORNSUN in Guangzhou from 2012 to 2013.Cooperated with Zhejiang University to study andresearch on synchronous rectification andisolated drive during the period. Applied for andlater obtained a patent for invention.

4. Have been working for Lifud Technology Co.,Ltd. since 2013. In charge of developing highpower LED driver for street lighting from 2013 to2015. Have become chief engineer since 2017 forresearching and product upgrading. Applied forand later obtained 6 patents for invention.

OrganisationLifud Technology

Established in 2007, Lifud, as a global registeredbrand, has been working on building a century-oldbrand so that users around the world can alwaysget LED lighting products of reliable quality andenjoy timely service. Sticking to business spirits ofIntegrity, Responsibility, Dedication, Lifud hasearned faithful trust and continuous support fromour clients and end users at home and abroad. Inorder to offer more timely support to overseaclients and end users, Lifud has establishedsubsidiary companies in CA, USA in January2018 and Düsseldorf, Germany in December2018. Besides, our increasing overseas

distributors also make Lifud have better globalpresence.

In Shenzhen headquarters, Lifud has anauthorized UL WTDP laboratory, and in SichuanProvince, we have a factory covering 40,000 m2,with ISO9001: 2015 certificate. Positioning as aglobal brand “Leading the LED Drivers’ Standard”,Lifud keeps developing and upgrading moreproducts to meet various demands and evenexceed their expectation. We have beenspecialized in developing constant current LEDdrivers but now we will start extending our productlines to more constant voltage LED drivers as wellas some industrial-application LED drivers.

We dedicate ourselves to technology innovation,shouldering the mission of improving humanbeings’ living environment. Our vision is to makethe utilization of energy resources more efficientand cleaner.


Light in Applications I–II

164 Are UV LEDs a Credible Alternative for Disinfection?by François MIRAND, Future Electronics

166 Real Environment Research Laboratory with Light Pollution Optimized Street Light Luminairesby Ferenc SZABÓ, PhD, LightingLab Calibration Laboratory

170 Aspects of Different LED Spectra for Street Lightingby Markus HOFMANN, DI, OSRAM Opto Semiconductors

172 How to Reduce Jetlag by Innovative Cabin Lightingby Achim LEDER, Dr., jetlite

174 UL 8800 Update and New Performance Label for Horticultural Lightingby Hans LASCHEFSKI, Dr., UL


Are UV LEDs a Credible Alternativefor Disinfection?

François MIRANDTechnical Director EMEA - Future Lighting SolutionsFuture Electronics4 rue Edison69500 Bron CedexFrance

AbstractMillions of people do not have access to drinkablewater. Hospital-acquired infection, also known asa nosocomial infection, is a growing concern whilebacteria develop antibiotic resistance. Thegermicidal properties of UV light have beenknown and used for decades however traditionalUV lamps have limitations. How can the rapidlydeveloping UV LED technology become a crediblealternative? Can we apply the lessons learnt fromthe LED adoption by the lighting industry?

Author’s CVFrançois MIRAND

Coming from the “dark side” of electronics,François Mirand has been involved in supportingthe first adopters of LUXEON High Power LEDtechnology in the early 2000’s. He participated inthe foundation of Future Lighting Solutions and inthe development of its unique solid state lightingexpertise, advanced design tools and one stopshop offering of SSL system solutions.

OrganisationFuture Electronics

Future Electronics Inc. is a distributor of electronicand electro-mechanical componentsheadquartered in Pointe-Claire, Quebec. Foundedin 1968 by Canadian Entrepreneur Robert Miller,the company is one of Quebec’s largest privatelyowned companies and is currently the fourthlargest electronics distributor in the world. Itoperates in 169 locations in 44 countriesWorldwide. Since 15 years Future LightingSolutions is the dedicated lighting business unitdelivering solutions enabling customers andsuppliers to generate new revenue out of photons.FLS leverages Future Electronics‘ broader set ofinnovative products and advanced services tounlock the growth potential of the lightingcustomers‘ footprint.


Light in Applications I–II 165



Real Environment ResearchLaboratory with Light PollutionOptimized Street Light Luminaires

Ferenc SZABÓ, PhDHead of LaboratoryLightingLab Calibration LaboratoryCholnoky J. Street 11H-8200Hungary

Co-Author(s): Péter Csuti, Zoltán Kolláth

Abstract1. Motivation, specific objective

Light pollution is a growing problem for the naturalenvironment, but also for human health. More andmore international surveys show that blueradiation content of certain (mostly cool white)LED lighting increases the risk of some illnesscompared to earlier orange-yellow sodium lamps.This is one of the reasons why some of today’slaptops and mobile phones are already set todecrease CCT (and blue content of the radiation)after sunset. Lighting trends of the last decadehave been favoured by LED technology based onphosphor converting technology, which meanssignificant emission in the 430 nm – 480 nmwavelength range, where ipRGCs are mostsensitive. As a consequence of Rayleighscattering, short wavelength photons are the mostefficiently scattering photons, 9.4 times moreefficient as scattering of 700 nm photons. As anexperience of LED public lighting projects of thelast decade, public lighting strategy is movingnowadays to warm white LEDs and Amber LEDbased solutions.

2. Methods

As a strong cooperation of astronomy,photometric laboratory and luminaire

manufacturer, a real environment researchlaboratory has been realized at two venues inHungary, by total reconstruction of the wholepublic lighting system of Répáshuta andBárdudvarnok villages in Hungary. Two aspectswere considered during the design: Recentresearch has shown that cool white light isharmful to the environment and to the humanhealth and species of fauna and flora. Therefore,in designing the new public lighting, the primaryconsideration was to emit only warm white lightwith minimal blue radiation. In addition, on theside streets after 10 pm, the lights of the publiclighting are weakened (according to the reducedtraffic) and then only the biologically optimumamber yellow light illuminates. This capability isrealized by specially developed spectrallytuneable LED public lighting luminaires. Furtherinnovative content of the system is that thedifferent LED channels have different lens opticsas well. Thanks to that, spatial distribution of lightoutput can be optimized as well for different needsof public lighting at night hours. An innovativecontrol system translates the given schemes intoLED current values at the luminaires. Thissolution is a novelty in the world as well. Anotheraspect was to totally exclude any light output at90◦ and above (ULOR=0). This also helps toimprove and maintain the status of the sky in two



Starry Sky Parks in Central Europe affected bysettlements and gives a liveable environment forvillage residents at the same time.

3. Results

Development of luminaires has been a multiplestep process with continuous laboratory controland feedback. Market survey revealed the mostsuitable LEDs to be applied in the luminaires.Photometric and electrical parameters ofprototype luminaires have been tested. In order tocompare the before-after state, illuminancemeasurements on the roads and sky luminancemeasurements had been done. After theinstallation of the developed luminaires, a publicsurvey has been started and opinions of residentshave been collected at both venues.

4. Conclusions

One of the most important conclusions, that it ispossible to create minimal light pollution publiclighting compared to traditional high pressuresodium public lighting installations, which providessafe and liveable environment of residents at thesame time. These two real environmentlaboratories will host more scientific investigationsin the future. With the improvement of phosphoramber LED technology, further advantages onenergy efficiency can be reached.

Author’s CVFerenc SZABÓ, PhD

In preparation.

OrganisationLightingLab Calibration Laboratory

The University of Pannonia (University ofVeszprém until March 1, 2006; Hungarian PannonEgyetem, formerly known as Veszprémi Egyetem)is a university located in Veszprém, Hungary. Itwas founded in 1949 and is organized in fivefaculties: Arts and Humanities, Engineering,Agriculture, Economics and InformationTechnology. The university was founded in 1949.In the beginning it worked as a regional faculty ofthe Technical University of Budapest. In 1951, itbecame independent under the name ofVeszprém University of Chemical Engineering.From 1991, the university has been called theUniversity of Veszprém.

The university first offered courses in four areas ofChemical Technology: Oil and Coal Technology,Electrochemical Industry, Inorganic ChemicalTechnology, Silicate Chemistry. From themid-1960s two courses — Nuclear Chemistry andTechnology, Process Control and SystemEngineering — became part of the ChemicalEngineering education in Veszprém. Thechanging and increasing requirements set for thegraduates persuaded the university to continuallyreform and restructure its education activity. As aresult, new courses were introduced:agrochemistry in 1970, Chemical EngineeringManagement in 1973, higher level foreignlanguage teaching in 1983 and Instrumentationand Measurement Techniques in 1984.

The restructuring process accelerated in the pastfew years and this resulted in the renewal andexpansion of the university’s education profile. Torespond to the society’s growing demand forcomputer professionals, with the help of externalfinancial support and the university’s scientificexpertise, the education infrastructure of theInformation Technology and Automation courseshas been created.

As a result of the increasing openness ofHungary, the need for teachers of foreignlanguages increased considerably. Havingrecognized this, the university introduced TeacherTraining courses for teachers of English and thenfor teachers of German and French and theeducation of philologists in specialties: Hungarianlanguage and literature, theatre sciences. etc. Inthe meantime, the education of Catholictheologists started in the form of a regional facultyof the Theologic College. Simultaneously, the



Faculty of Teacher Training (now: Faculty of Arts)and the Faculty of Engineering were establishedand the name of the university was changed toUniversity of Veszprém. The centre of scientificand cultural life, the University of Veszprém withthe 200-year-old Georgikon Faculty of Agricultureturned into a three-faculty university on 1 January2000. On 1 September 2003, two new facultieswere created: the Faculty of Economics and theFaculty of Information Technology. Every year theUniversity of Pannonia hosts national andinternational research conferences, whichstrengthen its international reputation. In the nearfuture, the offer will include new faculties and newschools. The leaders of the institution strive toturn the university into the educational,intellectual, and research centre of theTransdanubian region and to help find its place inEurope.





Aspects of Different LED Spectrafor Street Lighting

Markus HOFMANN, DISenior Key ExpertOSRAM Opto SemiconductorsLeibnizstrasse 493055 RegensburgGermany

AbstractIn the last years the increase of efficacy androbustness in LED technology has enabled thepenetration of LEDs in street lighting. The newLED street lights could be noticed visually due tothe different light color which they emit. In contrastto the widely spread sodium discharge lamps,which give an orange – yellowish light, the LEDstreetlights were designed typically with a colortemperature of 4000K and a CRI of 70. HoweverLED technology offers the possibility to adjust thespectra of LEDs and thus to provide a variety ofcolor temperatures, color points and CRIs due tothe method of light generation. The light of whiteLEDs is generated by mixing the blue light of theLED chip and the yellow light of the converter,which covers the chip. In this way even“saturated” colors like yellow or red can begenerated. In addition there is the possibility togenerate narrow spectrum saturated colors simplyby using a different chip technology, which emitsthe yellow or red light directly without anyconverter. Currently there is a trend towards LEDstreetlights with warmer CCTs, which even couldgo down to a color temperature of 2200K.Especially in residential or urban areas there is ademand for warmer and cozier light. This trend issupported by other factors, like the requirement tominimize light pollution or the need to provide lightwhich has less effect on animals or does notattract insects. Using the right combination of thewavelength of the LED chip and the materialmixture of the converter, the various demands fordifferent CCTs can be fulfilled. In this papervarious LED spectra will be introduced and theimpact on LED efficacy will be shown.

Lessons Learned: - Insights in LED Chip andconversion technology - Comparison of differentLED spectra for street lighting - Impact of warmerCCTs on LED efficacy - Optional: Demonstrator tovisualize the appearance of different spectra.

Author’s CVMarkus HOFMANN, DI

Markus Hofmann is Senior Key Expert for Systemdesign in the GL application engineeringdepartment at OSRAM Opto Semiconductors inRegensburg. After graduating from the Universityof Applied Sciences in Regensburg with a diplomain Electrical Engineering, he joined OSRAM OptoSemiconductors in 2000. At this time he workedon LED technology and applications forautomotive interior and exterior lighting. In 2008he started to work for OSRAM GmbH as atechnical project leader for LED retrofit lamps.Since 2015 he is at OSRAM OptoSemiconductors and works as ApplicationEngineer for general lighting LEDs.



OrganisationOSRAM Opto Semiconductors

Osram Opto Semiconductors is one of the guidinglights both in technological development and inthe manufacture of high-quality products. Fornearly four decades, the high-tech company hasbeen investing in research and developing newproducts on the technological cutting edge -enabling Osram Opto Semiconductors to setinternational standards in the fields of illumination,visualization and sensor technology. Theexpertise of Osram Opto Semiconductors extendsfrom basic semiconductor technologies toindividual customer applications. The companyproduces top-quality solutions in various fieldssuch as sensor technology and laser systems.The product portfolio comprises high-performancelight-emitting diodes (LEDs) – e.g. for automotiveand general lighting applications – miniature LEDsfor mobile devices, as well as infrared diodes(IRED), semiconductor lasers and detectors. Theglobal player accords top priority to offering itscustomers professional and comprehensivesupport based on many years of well-foundedexpertise. With a focus on promoting futuredevelopment, the company has been involved inhigh-caliber technology partnerships for manyyears, collaborating closely with partners from thecommercial sector as well as with universities andcolleges. Additionally, the high priority attached toongoing internal development has spawned manyinnovations and optimized the product portfolio.All this makes Osram Opto Semiconductors oneof the key players in the global opto-electronicsemiconductor market today.



How to Reduce Jetlag by InnovativeCabin Lighting

Achim LEDER, Dr.Founder and CEOjetliteHein-Saß-Weg 22D-21129 HamburgGermany

AbstractFirst study: The purpose of this paper is toexamine how chronobiologically effective cabinlighting increases comfort and well-being forpassengers on long-haul flights. The experienceof comfort and positive emotions during along-haul flight depends on many factors. Inaddition to seats, cabin climate, vibrations,turbulences and external influences on the flight,light in the aircraft cabin plays another importantrole. Chronobiologically improved cabin lightingconcepts by new LED-luminaires may enhancepassenger-comfort on long-haul flights byincreasing in-flight relaxation and activation levelsat the destination. The conducted experimentalstudy compares conventional cabin lighting withnew modified LED-technology. In the context ofsix simulated long-haul flights(within-subject-design; 21:00 - 07:00 h; n = 32)comfort and emotions are measured bysaliva-melatonin, ECG and self-reports. Theresults show higher comfort and positive valencein the warm white LED condition and the circadianeffectiveness of blue light within a daily routinebuilding the foundation for future related studieson behalf of preventive Jetlag-reduction.

Second study: In order to prove the effect ofchronobiologically improved cabin lighting inreal-life environment, a second study has beencarried out together with Lufthansa, the institute ofexperimental psychophysiology and the LudwigMaximilian University of Munich. The aim of thestudy was to analyse the relationship betweenchronobiologically modified cabin lighting andindicators of well-being and jetlag symptoms onboard long-haul flights. For this purpose, 77

business class passengers were accompanied onvarious Airbus A350 flights from Boston toMunich. Subjective and objective indicators ofemotional, cognitive and sleep-related symptomswere collected during the flight and in a four-dayfollow-up survey. Based on the extensive researchliterature and the previously conducted study, itwas expected that adapted lighting scenarioscould contribute to an improvement of well-beingand a reduction of jetlag symptoms. The results ofthe subjective and objective indicators recordedcorrespond to the anticipated changes. Insummary, the findings obtained here support theinitial hypothesis of the effectiveness andacceptance of chronobiologically adapted cabinlighting.

Author’s CVAchim LEDER, Dr.

Achim Leder is founder and CEO of jetlite. Lederstudied Economics & Management at FreeUniversity of Bolzano. After his graduation hecompleted his studies with a Master in Business &Engineering at Steinbeis University Berlin. Sincethen Leder worked in the aviation sector indifferent positions at EADS/Eurojet and DortmundAirport. From 2011-2014 Leder studied for hisPhD the effects of cabin lighting on passengers.Based on his PhD-Thesis and diverse surveysfrom all over the world, Leder defined thejetlite-algorithm that regulates the light on board inrespect to different flight parameters to reduce theeffects of jetlag.



Organisationjetlite

More than 60% of all passengers on long haulflights suffer from jetlag. This is not only aproblem for passengers themselves but alsocauses billions of dollars losses for economy.Besides, airlines aim for differentiation andperfectly satisfied guests. jetlite’s mission is toreduce jetlag, increase passenger-comfort andsatisfy airlines & aerospace needs regarding theneeded knowledge of the real impact of lightingand food over the whole passenger journey. jetliteoffers a holistic algorithm-based approach toincrease the comfort of passengers (pre-, in-, andpost-flight) by reducing jetlag on long-distanceflights. jetlite mainly focusses on (1)chronobiologically improved lighting for aircraft,airports and even personalized for passengersbefore and after the flight, (2) customized nutritionconcepts for airline-catering and airport-services,as well as (3) personalized suggestions forpassengers via an app regarding sleep-, light- andnutrition-impact, which together form thebackbone of this scientifically proven solution.jetlite can increase the comfort and satisfaction ofpassengers while reducing fuel consumption andthe workload for the crew on board.



UL 8800 Update and NewPerformance Label for HorticulturalLighting

Hans LASCHEFSKI, Dr.EU Lighting Business Development ManagerULAdmiral-Rosendahl-Str. 963263 Neu-IsenburgGermany

Co-Author(s): Name Surname, Name Surname

AbstractIn 2017, according to a market study provided byCSIL the Centre for Industrial Studies, theEuropean Market for horticultural lighting jumpedto 350 million Euro and worldwide to about 850 –900 million Euro. The main segment isrepresented by commercial greenhouses (around50%); a bit smaller the segment of indoor andvertical farming (around 45%) and a minor butsignificative slice is hold by R&D/universities.Horticultural lighting is one of the fastest growingsegments in the lighting market. UL already helpsmanufacturers bring horticultural lightingequipment to the market while ensuring thehighest levels of safety by certifying products andwriting standards the industry has come to trust.

About UL 8800: Unlike UL 1598, Standard forSafety of Luminaires, UL 8800, Outline ofInvestigation for Horticultural Lighting Equipment,is intended to address the unique safety issuesapplicable to horticultural luminaires, lightingcomponents and grow systems, and representsthe first set of standardized requirementsspecifically designed for horticultural lightingequipment. As a result, UL is currently using therequirements of UL 8800 to evaluate horticulturallighting equipment from manufacturers seekingthe UL safety mark for their equipment anddevices. Introduced in 2017, UL 8800 provides apublished set of safety for lighting equipment and

grow systems intended for use in a horticulturalenvironment, and installed in accordance with theNational Electrical Code. Lighting equipmentcovered under the scope of this Outline ofInvestigation include luminaires and, when ahorticultural system is employed, can also includean assessment of lampholders, wire harnesses,plugs and connectors, light-emitting diode (LED)packages, ballasts/LED drivers, lamps, andhardware and structures (also known as systems)specifically designed or intended for use inoptimizing plant growth. In March/April 2019 thefinal version of this standard will be published andthe presentation will refer to it. In November 2018UL introduce a new label available to horticulturalluminaire manufacturers as part of the ULHorticultural Performance Report. Manufacturerscan now use this special label to provideindependent, third-party confirmation of theirluminaire performance and help differentiate theirproducts from the competition. This new UL Labeloffers a quick and easy way for buyers andconsumers to understand the vitalplant-growth-based performance aspects of ahorticultural luminaire and is an exciting way formanufacturers to demonstrate performance.



Author’s CVHans LASCHEFSKI, Dr.

06/2018 - UL International Germany GmbH EULighting Business Development Manager

12/2010 – 05/2018 Alanod GmbH & Co. KGBusiness Development Manager

2010 Schnick-Schnack-Systems GmbH, DMXcontrolled LED Stage lighting Member of theManagement Board

04/1994 - 12/2009 Oktalite Lichttechnik GmbH,Trilux Group Retail lighting

since 01/1995 Member of the leading committee„Lichttechnischen Gesellschaft (LiTG)“, section“Rheinland“, Leader of the “interior lighting” team,Head of the Support Center Gummersbach

OrganisationUL

As a global company with more than 120 years ofexpertise, UL works with customers andstakeholders to help them navigate marketcomplexity. UL brings clarity and empowers trustto support the responsible development,production, marketing and purchase of the goods,solutions, and innovations of today and tomorrow.We connect people to safer, more secure, moresustainable products, services, experiences andenvironments – enabling smarter choices andbetter lives.


CHAPTER B

TiL LECTURES – LIGHTINGDESIGN

179 How Smart and Intelligent Can Lighting Be?

187 New Lighting Design Approaches in Applications

197 The Light – The New Awareness

205 The Smartness of Buildings & Cities

211 Innovations in Lighting Design – Thinking Out of the Box

221 Light and Lighting Design – Thinking Different

229 The Process of Modern Lighting Designs

237 Digitalization in Lighting – Impacts on Users and Usages

247 Latest LED Technology Trends

How Smart and Intelligent Can Lighting Be?

180 Innovative PC-App Optionally Combined with Camera for Adjusting the Perfect Light Colour FullyAutomaticby Peter HAUMER, Dipl.-HTL-Ing., LUMITECH

182 Smart Lights with Machine Learning for Truly Smart Livingby Harry EDELMAN, Dr. Arch., AIDOMUS

184 The Rise of Pixel Art: The Lasting Effects of Affordable Addressable LEDsby Stefan Yazzie HERBERT, The Paranormal Unicorn


Innovative PC-App OptionallyCombined with Camera forAdjusting the Perfect Light ColourFully Automatic

Peter HAUMER, Dipl.-HTL-Ing.Head of Technical SalesLUMITECHTechnologiepark 10A-8380 JennersdorfAustria

AbstractThe intelligent PC-APP myPI-LED combinesluminaires using PI-LED technology with camerasand / or sensors and thus enables a lightingsystem that can respond quickly and personalizedto a variety of requirements. Fully automatic orinteractive - myPI-LED supports users intuitivelyand ensures optimal lighting conditions. Theaward-winning and patented PI-LED technologycombines white light and RGB colors in a singlelight source and stays for the highest level ofhuman centric lighting since over 10 years. WithmyPI-LED LUMITECH wants to make the accessto professional lighting solutions easier foreveryone. The functionality is very easy: theproduct or the room is photographed, a dot orarea is marked in the photo and myPI-LED setsthe optimal lighting conditions with the ideal whitelight for exactly this situation (RGB is alsopossible, if needed) – fully automatic andcomfortable. MyPI-LED is an enormousadvantage, especially for shop applications: Eachproduct is set in perfect lighting at all times andimpresses with its colors, material and haptics.

Control device for NeoLink Air luminaires

• Easy initial operation/installation of the

NeoLink Air USB Stick on every WindowsPC

• Communication between NeoLink Air USBStick and luminaires via NeoLink Air (radiotechnology based on ZigBee)

• Automatic NeoLink Air networkconfiguration (automatic registration ofNeoLink Air luminaires in the network)

• NeoLink Air network reset via "myPI-LED"software (automatic de-registration ofNeoLink Air luminaires from the network)

• Configuration of luminaire groups,brightness- and colour control of the groupsvia "myPI-LED" software

• Programming and calling various moodlights, daylight sequences and dynamicsequences via "myPI-LED"

• Integration of up to thirty WALLY in theNeoLink Air network of the Stick


How Smart and Intelligent Can Lighting Be? 181

Author’s CVPeter HAUMER, Dipl.-HTL-Ing.

Education 1983-1985: Electrical engineering, TUVienna; 1996: Diploma examination (Electronics);1998: Entrepreneur Examination; 2007:Diplom-HTL-Ingenieur (diploma thesis: electricallyconductive plastics); 2009: Contribution toEuropean Patent EP 2 088 369 A1(Beleuchtungskörper).

Several speeches & lectures (e.g. Swiss LightingForum, LICHT2018 Davos).

At Lumitech since October, 2012 as BusinessDevelopment Manager, since November 2017 asHead of Technical Sales.

OrganisationLUMITECH

This has been LUMITECH’s commitment eversince its founding in 1997. Acknowledged asexperts in the LED lighting field, we support, firstand foremost, companies in the lighting and foodindustries, but we are also a partner of choice forhighly-specialized special LED solutions in otherapplication fields.

LUMITECH has extensive expertise in the field ofLED technology right down the value-addingchain and was awarded the Austrian State Prizefor Innovation in 2007 for its development of PILED technology.

Our core competencies lie in a perfectlycoordinated combination of various special fieldsof technology, such as electronics,semiconductors, lighting engineering, softwareand metrology, and in the ability to providesolutions to our customers’ needs and demandsand implement these in attractive and long-lastinglighting systems. The high quality of our colourrendering and the adjustability of colourtemperature set industry benchmarks worldwide.

LUMITECH’s headquarters have been located inJennersdorf, Austria since the company wasfounded in 1997. We also have an office inVienna. The company is owned by LUMITECHHolding and the Burgenland Athena/BRB Fond.

LUMITECH is certified according to ISO9001:2008.



Smart Lights with MachineLearning for Truly Smart Living

Harry EDELMAN, Dr. Arch.Co-Founder, Design and Business DevelopmentAIDOMUSAIDOMUS c/o Tampereen yliopisto, Harry Edelman33014 Tampereen yliopistoFinland

AbstractAIDOMUS is an integrated internet of things (IoT)smart lighting fixture for delivering various livingservices. The technology of AIDOMUS enablesservices, for example, automated heating andcooling control, safety and well-being, andsupervision of in-home deliveries to emptyapartments while residents are away. Integrationof machine learning capability to the lightingopens up an opportunity to deliver smart interiordesign solutions through lighting withoutintroducing additional smart devices, or extraeye-sore sensor fixtures to the surfaces ofarchitectural spaces. The technology can beadopted to a variety of lighting designs.AIDOMUS is the first easy-to-use and"interfaceless" approach to manage living servicesin all kinds of apartments based on the demand,behavioural data, and real-time occupancyinformation. The current smart home solutionssuffer from complicated user-interfaces that callfor active attention from the users. Instead, asolution based on a lightning fixture offers anatural point of connection for intelligent servicesmaking everyday life easier, safer, cost-efficient,and mitigating the climate change. The machinelearning system of AIDOMUS enables theprediction of occupancy and the use of spacethrough non-intrusive sensor data. AIDOMUSconnects the physical space and the useinformation of a space for enabling the services,such as controlling the indoor air conditions, orother services benefiting from the sensor basedbehaviour information in the spatial context.Currently, the system is under prototyping andcommercialisation. The accuracy of the temporalbehaviour detection in spatial context (entries and

exists to a particular space) is over 90The systemwill be piloted in a residential development inFinland in the city of Tampere in 2019, by a rentalhousing company VTS with a total stock of over9,000 apartments. As an example of the skills, thepilot will focus initially on energy management:setting the temperatures based on the occupancy(lowered temperatures) and desired predefinedprofiles that for example lower the night timetemperature. Further skills of the system will beinvestigated, such as supervising trusted in-homedeliveries, such as groceries, with the sensordata. The solution will solve the so called "LastMile" problem in e-commerce logistics. Further,the AIDOMUS aims at providing hardware forsecurity and health related services.

Author’s CVHarry EDELMAN, Dr. Arch.

Harry Edelman is Co-Founder (Design andBusiness Development) at AIDOMUS, a start-upfor architecture, automation and artificialintelligence for doing good for people and thePlanet. Smart lighting lies at the core ofAIDOMUS solutions for truly easy-to-use smartliving solutions. Dr. Edelman is an enthusiast anda tenacious doer in strategic design, innovations,and design on sustainable built environment, citydevelopment, and new business development. Heconducted his doctoral research at theMassachusetts Institute of Technology, and hasserved as the Professor of Sustainable Designand Development at the University of Tampere inaddition to kick-starting his first company.



OrganisationAIDOMUS

AIDOMUS was born out of academic researchand multidisciplinary design studios. In 2014professors and senior researchers from the fieldsof architecture, automation, and artificialintelligence initiated a data-driven design studiofor sustainable design for the built environment. Acouple of years later we had over 100 alumnaeand a pool of ideas. We ended up with newtechnologies for understanding qualitative andquantitative data on cities and architecturalspaces. The AI based technologies help us tosave energy, deliver logistic solutions, providesecurity and well-being, and much more. This ishow the journey of AIDOMUS got started.

Figure 1: New Innovation - AIDOMUS is a smartlighting fixture located in the entrance room of anapartment. It has the capacity to collect informationabout the use of space for controlling the indoorclimate based on occupancy and use. It supervisesalso services with multimodal sensor data, such asin-home deliveries solving the Last Mile problem.AIDOMUS gathers non-intrusive sensor data on theuse of architectural space for automated AI basedservices, such as heating and cooling control,security and in-home delivery services whennobody is at home. It may be integrated to anylighting design. AIDOMUS fits for both new and oldbuildings.



The Rise of Pixel Art: The LastingEffects of Affordable AddressableLEDs

Stefan Yazzie HERBERTFounder, CEOThe Paranormal UnicornKauergasse 10 / 61150 ViennaAustria

AbstractLight based art has seen a recent surge, withmany artists gaining widesperead accliam andrecognition with art pieces featuring addressableRGB LEDs. So what are the reasons for thissudden change in medium?

The explanation can be split into three mainpillars: the sinking cost and proliferation of certaintechnologies, the ease of sharing knowledge oninternet blogs and forums, as well as a much lessobvious reason: the rise of the DJ as a musicalact.

Many years ago, the only musical acts on stagewere musicians, bands and performers. However,as music producers and DJs became more andmore common on large stages, lighting and stagedesigners realized that they had a problem: DJ’sare boring on stage. And so began an arms racefor the biggest and most intricate stage. As thearchitecture of these stages became morecomplex, lighting these complicated 3D shapesbecame difficult with standard industry equipmentand so many designers reached to a tool that hadlargely only been used for home and retaildecoration: the LED strip. The flexibilitiy, low costand ease of use made it an incredibly popular toolover the years.

As the LED strip became a mainstay on the stage,many hobbyists saw it as an affordable way topractice their craft. Many who had started as VJ’snow had a new weapon at their disposal, a newway to experiment with architecture and 3D

space. As this market became more robust,software and hardware were developed to fit theneeds of the their users in a price range thatmade it affordable to the masses.

From the early days of so-called „dumb“ LEDs tomodern addressable, self-reporting LEDs, therehave been many iterations, but none as importantas the introduction of the WS2812 LED series.While not the first addressable LED chip, theWS2812 chip (along with it’s brethren WS2811,WS2812b, etc), drastically sank the cost ofpowering and controlling thousands of LEDs.

Hardware to control these strips also becameincredibly affordable, with boards like the Arduinoand the Teensy, which also had plenty of onlinelearning resources for their hobbyist communities.Pair this with the fact that the control protocolArtnet now allowed hundreds of thousands ofpixels to be controlled with simple computersoftware and cheap ethernet cables, and youhave a recipe for creating a rich, creativelandscape of light art.



Author’s CVStefan Yazzie HERBERT

Stefan Yazzie Herbert is a dynamic speaker,entrepreneur and designer. With incrediblydiverse influences coming from a variety ofindustries throughout his life, Stefan brings insightto a wide range of topics: design, science, culture,leadership and social entrepreneurship. Hisunique ability to create an air of curiosity andwonder in his audiences no matter the topic,makes him a perfect fit for any stage or event.Stefan’s professional work focuses on usingtechnology in innovative and creative ways. Hisphilosophy is based around “recombinatorialcreativity”: bringing many different fields togetherto create new ideas. Over the past years, his workhas expanded to include the educational, culturaland social aspects of the creative field.

"If you’re the stupidest person in the room,you’re doing something right." Stefan

OrganisationThe Paranormal Unicorn

Founded in 2011 by Austrian-American artstudent Stefan Yazzie Herbert, The ParanormalUnicorn describes itself as an ‘audio-visual artistcollective’ that specialises in stage and lightingdesign. Based in Vienna, Austria, the firmoriginally began as a platform for Herbert and twofriends, carpenter Benni Frener and PhilippGantioler to launch a prospective music career.

Figure 1: Stage Lighting


New Lighting Design Approaches in Applications

188 Hospitality Lighting Designby Theodore D. KONTORIGAS, Theodore Kontorigas Lighting Design

190 Ambient Lighting Design for Persuasive Environments Using Social Media Databy Yasaman MAVVAJ, MSc, Koerner Design

192 Inside the Pyramids - Light Where There Should be Darknessby Ruairi O’BRIEN, Associate Professor, Ruairi O’Brien Lighting Design


Hospitality Lighting DesignTheodore D. KONTORIGASArchitectural Lighting DesignerTheodore Kontorigas Lighting Design79 E. Pissa Street, Neos Kosmos117 44 AthensGreece

AbstractThe lecture provides insight into the essentialfactors for creating successful lighting schemesfor hospitality projects. Specific examples in theform of in-depth case studies are used to illustratehow lighting is creatively designed to transformthe hospitality experience. The impact of recentadvances in technology and particularly thedevelopment of LED technology to architecturallighting design will be also analyzed along with apresentation of the vast new opportunities forinspirational, innovative hospitality lightingscemes.

The lecture explores three main topics:

1. Human Centric Lighting and itspsychobiological influence on hotel customers;Human centric lighting is not a new concept for thedesign of architectural lighting. The biological andemotional human needs beyond illumination forthe visual system, were always to the core of theprofessional lighting design process. The benefitsof designing human centric lighting schemes in ahotel environment are: visual comfort, safety andease of orientation (visual), concentration andcognitive performance (biological), uplifting andpositive mood (emotional). Human centric lightinginstallations require intelligent lighting solutions(sensors, controls), tunable white, personalisedguest control and integration of daylight.

2. Internet of Things (Iot) and the design ofconnected and digitized lighting; Through digitalinfrastructure and sensorized luminaries the“Internet of Light” would be presented through itsessentials: lighting quality, control andcommunications, awareness and sensing. Newpotential quests / customers (target group)experiences and services can be envisioned in

order to open up possible future scenarios and toshape the adaptive rhythm of hospitable light.

3. Lighting as an iarchitectural material and theapplication of integrated, customized, controllable,miniaturized lighting systems. This is defining newcreative possibilities for architects, lighting andinterior designers. LEDs allow forflexibility—dynamic lighting with colour-changingelements is now within the source. LED lightingcan be easily controlled through a smartphone,unlike other light source. As guests become morefamiliar with the power of smart LED lighting,lighting designers will become able to designdynamic ways to customise solutions that answerthe wants and needs of the industry. The future oflighting and its responsive and organic ways willsoon benefit the lives of quests active in a hotelspace.

Light fundamentals, units of measure andperception, techniques like layering light, controlprotocols, families, principles, examples andapplications, specialized products for hotels alongwith lighting design examples and case studies,will also be presented.


New Lighting Design Approaches in Applications 189

Author’s CVTheodore D. KONTORIGAS

Theodore Kontorigas is an independent lightingdesigner who works as a lighting consultant inGreece and abroad. He has an architecturalbackground and a Master degree in ArchitecturalLighting from the Bartlett School of Architecture,UCL in London. In the past he was employed bythe award winning lighting design practiseMaurice Brill Lighting Design in London. In 2002,he set up his own independent lighting designstudio in Athens, Greece. In the following years,he designed the lighting for high profile exhibitionand conference spaces, luxurious hotels,monuments and historical places, office buildings,restaurants and shoping malls. He regularlylectures at universities, trade fairs andprofessional conferences about lighting design forthe built environment.

"We create comfortable and inspiring visualenvironments where light is integral toarchitecture and responds efficiently to userneeds, functional and technical requirements,energy savings and aesthetics." Theodore

OrganisationTheodore Kontorigas Lighting Design

Theodore Kontorigas Lighting Design is one of theleading lighting design consultancies in Greeceand Cyprus. Its aim is to maximise the impact ofthe space around us, whether in hotels, shoppingcentres, museums or outdoor environments. TheTKLD team strive to achieve their aestheticobjectives and fulfil the design requirements of thebrief with a high degree of technical competenceand imagination. With this background, the teamhas always been aware of the psychologicaleffects of lighting in its approach to design. Lightis used to enhance space: to define its authorityand to evoke the right mood for people in andaround the building. With over fifteen years ofexperience in lighting design, TKLD candramatically transform the experience of space inresponse to the business needs of its clients.



Ambient Lighting Design forPersuasive Environments UsingSocial Media Data

Yasaman MAVVAJ, MScProduct DesignerKoerner DesignBarnsteenhorst 742592EL, Den HaagThe Netherlands

AbstractData is the driver of the digital world, and with thedigital world playing an increasingly important rolein our lives; I think designers ought to make moreof an effort to consciously include it in productsand built environments. People spend a significantpart of their lives on the social media platforms;the average person spends more than two hourson social media every day, which translates to atotal of 5 years and 4 months over a lifetime. Thisamount is only expected to increase as platformsdevelop. The world where we live in, is the contextwe use to produce social media feed; like postingthe food we eat on the Instagram. As a result, thephysical world plays a vital role in shaping thesocial media. However, there is no trace of thesocial media or its impact on the physical world; ofcourse, it indirectly influences our mentality butnothing more tangible happens. Now the questionis: “Would the digital world be able to influencethe physical one as well? and therefore create anon-ending cycle which connects both worlds andresults in having one big world instead of twoseparated ones?” If so, what would be the resultand how can we contribute as designers? One ofthe tools used to communicate with the world andimpact on architectural environments is light.Preset scene systems inside Architectural spacesare no longer capable of expanding to meetmodern media demands. Architectural spacesneed to responsively generate live content to trulyexploit the potential of spaces filled with digitalambient media systems. During the presentation,

I am going to explain how it would be possible tocommunicate the happenings inside the socialmedia using light visualizations and further argueif these visualizations can become a tool to impactpeople’s behavior and decisions. Lastly, I willshare the other opportunities and possibilitiesusing this data translation as well as the ways wecan enrich and develop it for the future needs. Bycategorizing the social media data and linkingthem to light visualizations, a light language iscreated. In the next step, after doing a fieldexploration and testing "ambient communications"concepts using a real live prototype, its influenceson human behavior and actions will be evaluated.The test will be done in the lobby of the IndustrialDesign faculty of TU Delft. The light visualizationswill be mapped on a 2.5x1.2m Philips textile panelusing POET software by SKANDAL and PharosArchitectural Controls, and Advertima ArtificialIntelligence as a measurement system to evaluatethe impact of the visualizations on people’sattention and reactions. The project is agraduation thesis done at Delft Universitytechnology for Koerner design under thesupervision of Brad Koerner and two of theuniversity’s professors, Dr.Sylvia Pont, and Dr.Gerd Kortuem to tackle these questions and findout how we can connect these two worlds andenhance people’s lives.



Author’s CVYasaman MAVVAJ, MSc

Yasaman (born, 1989) is a young productdesigner based in the Netherlands. Shesimultaneously graduated from Bachelor ofArchitecture and Bachelor of Industrial Designand continued her studies in the field ofArchitecture. After receiving the Master ofArchitecture and working for two years at thecountry of her origin, Iran, she moved to theNetherlands searching for new challenges.Yasaman is currently a Master student at TUDelft, soon to be graduated as an IntegratedProduct Designer.

OrganisationKoerner Design

Koerner Design helps our clients developinnovative new products, experiences andenvironments. We are specialized in theintersection of architectural lighting and digitalmedia systems and provide a range of services,including lighting design, product design, productmarketing and business development.



Inside the Pyramids - Light WhereThere Should be Darkness

Ruairi O’BRIEN, Associate ProfessorArchitect and Lighting DesignerRuairi O’Brien Lighting DesignAntonstrasse 101097 DresdenGermany

AbstractThe pyramids do not need an explanation.Practically everyone has heard about thepyramids and he or she who travels to Cairo hasto visit the great pyramids of Giza. The Pyramid ofKhufu also known as the Pyramid of Cheops isthe oldest and largest of the three pyramids in ElGiza, situated on the outskirts of Cairo. It is theoldest of the Seven Wonders of the AncientWorld, and the only one to remain largely intact.

Figure 1: Inside the pyramid of Cheops, existinglighting situation

Modern day tourism is an important source ofincome for countries as rich in culture andheritage as Egypt, the cradle of civilization andthe Pyramids are one of the country’s greatestattractions. Tourism can also play a great role inintercultural exchange, understanding andeducation and every child who is privilegedenough to go to school encounter the Pyramids intheir school books as do all architectural studentsin their first semester history lessons.

I remember well the wonder I felt during my firsttime visiting the Pyramids. It started with theapproach though the streets of Giza and suddenlybeing aware of their presence as I spotted themtowering up behind between the gaps in the rowsof the houses on route. Their purist formsabsorbed the heat of the sun and stood firm in thewind and cutting sand. Observing how thepyramids in the strong Cairo daylight express theirgravity and their eternity one is aware of the hardshadows, the clarity and the timelessness of lightplaying with one of its most perfect partners in theworld of architecture.

Heritage buildings are extremely difficulty to lightand thankfully the pyramids are as yet not lit atnight so they can still master the dusk and thecoming of darkness as they have done forthousands of years. There are of course lightshows offered as a tourist attraction, my personalopinion is that the pyramids are so powerful in thesunset and in the darkness of the nightaccompanied by the moon and the stars that onedoes not need a light show to appreciate theimportance of what one is privileged to see and Iwould definitely prefer to sit a stare and wonder in



silence without any special effects to distract mythoughts. Nevertheless, in my lecture I will beconcentrating on another aspect of the Pyramidsat Giza, the Inside. For thousands of years theinterior space was in complete darkness, after allit was conceived to be a burial chamber. Todaytourists’ queue to enter this special unique space,a space that was not conceived to be entered everagain once the stones were closed. How do welight such a space? Once you have decided that itis morally acceptable to allow strangers enter thesecret and private world of the burial chamber of apharaoh, who is not around to ask if he wouldhave a problem with his resting place beingdisturbed in such a manner, one gets on with thejob as a professional and starts to analyze thesituation. There is no daylight obviously and thelighting of the interior needs to provide safety forhundreds of visitors a day in high season whomake the strenuous climb through the narrowpassages to the burial chamber in the depths ofthe man-made mountain of stone. Should thelighting be purely technical or can it be designedto support not just seeing your way but alsomanipulating your emotions on route? Should oneheighten the drama of the experience or just hopethat no one has an accident.

This semester at the German University in Cairo Ihave worked with a group of students on ananalysis of the present lighting situation anddeveloped with them concepts on how one couldimprove the interior lighting of such an importantexample of cultural heritage. In the lecture I willtell the story of the project and I will present someof the results of the lighting design solutions. Thelecture will also discuss in general the difficultylighting designers face with heritage buildings ofsuch importance.

Author’s CVRuairi O’BRIEN, Associate Professor

Ruairi O’Brien was born in Dublin, Ireland, he iscurrently an associate professor and head of theArchitecture and Visual design department at theGerman University in Cairo.

With his architectural practice, Ruairi O’Brien.Architektur. Licht. Raumkunst. and his lightingdesign studio, Ruairi O’Brien Lighting Design,O’Brien has executed a large and diverse portfolioof work which includes urban design, marketsquares, innovative and custom-built streetlighting, public and private buildings, hospitals,schools, residential buildings, museums,memorials, exhibitions and interiors. O’Brienrecently completed an “architectural design guide”and lighting masterplan for the central shoppingarea of Lichtenrade in Berlin.

O’Brien has also worked on theatre and danceprojects, created a series of sculptures,installations and performances with light andexhibited his drawings, light sculptures andpaintings in London, Berlin, Frankfurt (Luminale),Leipzig and Dresden. In 2003 he initiated theLight Poetry Festival LIGHT and WORD as apartner festival to the International Poetry FestivalBARDINALE in Dresden, Germany and curatedthe festival until 2006. In 2014 he was one of 12lighting designers who founded the Federation ofInternational Lighting Designers and served onthe board as Vice President until the end of 2018.O’Brien’s international teaching experienceincludes contracts undertaken for universities inGermany, Czech Republic, Russia and Syria.During his time as a visiting professor at theUniversity of Wismar in Germany (2001-2005)O’Brien helped initiate the international master’scourse in Architectural Lighting Design and wasresponsible for the programs design studios.O’Brien has given lectures, supervised workshopsand organized exhibitions on architecture andlighting design in Japan, the Netherlands, Greece,England, Ireland, Sweden, Finland, Austria, Italy,Latvia and in the USA.

O’Brien studied architecture in London at theUniversity of Greenwich and at the University ofEdinburgh. During his time at Edinburgh hereceived a “Visiting Scholarship” to ColumbiaUniversity in New York. O’Brien’s researchinterests are an extension of the topics he hasdeveloped as an interdisciplinary practicingarchitect and lighting designer: Lighting and the



built environment, the development of old and newtowns, the architecture of museums, memory andheritage, Human Centric Lighting Design.

www.ruairiobrien-international.com,www.ruairiobrien-lightingdesign.com,www.ruairiobrien-artworks.com

OrganisationRuairi O’Brien Lighting Design

RUAIRÍ O’BRIEN. LIGHTING DESIGN. offersinnovative high quality individual solutions in lightfrom the first idea through to site supervision: Cityarchitecture, urban space, public and privateparks, museums, exhibitions, lighting fixtures,installations and sculptures. RUAIRÍ O’BRIEN.LIGHTING DESIGN. deals with both daylight andartificial light and offers especially concepts forlight and color. The work undertaken covers allaspects from the conception and design of lightingproposals through to their technical realization.RUAIRÍ O’BRIEN. LIGHTING DESIGN. also offersprofessional consulting service for investors,architects, landscape architects, engineers andalso for providers and manufacturers of lighting.

The expertise offered in our design studio canplay a major role in the further development ofintelligent energy saving buildings, save costs forthe client and the design team and ensure abeautiful sustainable built environment for futuregenerations to come. Light is an integralcomponent of urban planning, architecture andinterior design and demands both technicalexpertise and aesthetic awareness on the part ofthe designer. Light should allow us to experienceour environment, establish an appropriateatmosphere in a room or outdoor space andcreate comfortable and healthy living and workingconditions. The architectural lighting designerRuairí O’Brien and his interdisciplinary teamoffers you a comprehensive holistic approach tothe implementation of your projects which willensure that they will be as near to perfect as ishumanly possible.




The Light – The New Awareness

198 Light as Essential Part of the Conceptby Sergei TCHOBAN, Arch., TCHOBAN VOSS Architekten

200 Daylight and Light Design Intertwiningby Isabel VILLAR, MSC, White Arkitekter

202 Langsames Licht / Slow Light - From Theory Into Practice and From Art Into Functionby Siegrun APPELT, Siegrun APPELT


Light as Essential Part of theConcept

Sergei TCHOBAN, Arch.ArchitectTCHOBAN VOSS ArchitektenRosenthaler Straße 40/4110178 BerlinGermany

AbstractLight forms and gives more importance toordinary details, emphasizes façades andsurfaces, sets accents, smoothes and conceals,enhances the understanding of buildings andurban spaces and so much more. Therefore it isof great importance for me to take lighting intoaccount from the beginning of every project. Indoing so I consider not only light design but alsothe use of natural light conditions, which influencespaces and buildings as well as their perceptionto a great extend. Working on a particular project Ialways try to respond to the given location. It canbe a strong and colorful accent as it was the casewith Cubix cinema on Alexanderplatz in Berlin, avivid place which never sleeps. Light can act asmarketing instrument, when thinking of retail. Itcan become an art concept when taking museumsor other cultural institutions into consideration. Aspecial interest for me is working on exhibitions orinstallations, as for example my latest ones, RomaAeterna in Moscows Tretyakov Gallery or itsresumption, Pilgrimage of Russian Art at theVatican Museums in Rome. One of the highlightswas the work on the stage design The BrightWay.1917 for the Moscow Art Theatre (MXT) inMoscow. Besides of playing a particular role forthe stage construction, light was a strong meansof expression for the whole content of the play.

Author’s CVSergei TCHOBAN, Arch.

Sergei Tchoban (born 1962 in Saint-Petersburg)is a Russian and German architect. He ismanaging partner of the Berlin office TCHOBANVOSS Architekten and director of the architecturaloffice SPEECH in Moscow. He designed and builtseveral internationally known buildings andensembles in Germany and Russia, such as theFederation Complex in Moscow or the Museum forArchitectural Drawing in Berlin. Tchoban curatedtwice the Russian Pavilion for the ArchitecturalBiennale in Venice and in 2015 he was thearchitect of the Russian Pavilion for the EXPO inMilan. He is the founder of the first Biennale foryoung architects in Russia and jury chairman aswell as jury member of several internationalarchitecture and drawing competitions. 2018Sergei Tchoban received the European Prize forArchitecture by Chicago Athenaeum Museum ofArchitecture and Design.


The Light – The New Awareness 199

OrganisationTCHOBAN VOSS Architekten

“Before embarking on a new construction project,we always approach the specific urban situationas something unique and valuable in itself. This iswhat produces unique architectural solutions. Thesurrounding urban context guides us to the bestpossible result, which may be contrasting ordiscreet, massive or light and delicate. It isimportant for us to design our buildings in theirentirety, down to the door handles, since only aninteraction of exterior and inner structure, ofdetails and the whole can make a building or agroup of buildings a credible and characterful partof its surroundings. In a world which is becomingincreasingly transient it is only enduringarchitecture which can meet the ever-changingrequirements. Architecture which is valuable,aesthetic, and user-friendly can age gracefullyand contribute to an authentic and livableenvironment. To this end, we place greatimportance on innovative and precise solutions ateach step of the planning and constructionprocess.” Sergei Tchoban, Ekkehard Voss

Figure 1: Project - VTB Ice Palace, Moscow 2015



Daylight and Light DesignIntertwining

Isabel VILLAR, MSCLighting DesignerWhite ArkitekterÖstgötagatan 100116 64 StockholmSweden

Co-Author(s): Maha SHALABY, MSC (Sustainability Specialist)

AbstractLight, both natural and artificial, plays a crucialrole in the creation of sustainable builtenvironments and democratic architecture withpeople in focus. Light affects our body, physicallyand psychologically, and has a direct impact onour health and well-being.

White Arkitekter works with lighting strategies thatintegrate daylight and electric light, taking intoconsideration the person, the task and the contextin the best possible way. In the building designindustry daylight and electric lighting planning areoften treated separately. However, bothdisciplines address the same questions albeitthrough different means. As such, there is greatpotential for them to complement, rather thanoverride, each other.

The integration of daylight and electric lightsimulations and analyses are, therefore, essentialthroughout the design process when taking ahuman centric approach, meeting newcertifications but primarily optimizing theend-result by creating better spaces for people towork and live in.

The integration of the two disciplines is alsoimportant when considering the building’s energy

efficiency and environmental impact. Optimizingdaylight in a building can significantly reduce theenergy used for electricity and cooling.

To inform the building design process Whitestrives to integrate the two disciplines in thepractice. This presentation will focus on some ofthe challenges the architecture industry is facingto achieve people-focused lighting strategies. Itwill also illustrate some of the methods White hasdeveloped to tackle these challenges based onpractical and research experiences. Case studieswhere this approach has been implemented willbe presented to illustrate the benefits ofintegrating both disciplines and how it can affectthe different design decisions and factors linked toroom size and layout, spatial qualities, controlsystems and energy efficiency.



Author’s CVIsabel VILLAR, MSC

Isabel holds a Master’s degree in architecturallighting design from KTH, Sweden. In 2017 Isabeljoined White Arkitekter as Lighting Designer withthe vision of working both with daylight andelectric lighting at early stages of the designprocess. With over ten years of experience, Isabeldesigned the lighting for a wide range of nationaland international projects. In 2014 Isabel won theSwedish Lighting Design Prize for the Annexet atThe National Library. She lectured at the LightFair in Las Vegas, and PLDC in Rome. In 2018Isabel was given international recognitionreceiving the 40under40 Lighting DesignersAward.

Maha SHALABY, MSC

Maha has more than two years of experience inenergy efficiency in Buildings and applyingsustainability on the building level, specificallyworking with daylight in buildings, simulatingenergy need and thermal comfort, and windsimulations. She has six years of experience ofworking, scripting and carrying out differentsimulations in Grasshopper. She is verypassionate about the impact of buildings onhuman beings and has extensive knowledge ofthe WELL certification system. She has excellentresearch skills, extensive tool development skillsand led multiple R&D projects. She was alsoresponsible and coordinating different projectsand methods development at White.

OrganisationWhite Arkitekter

White Arkitekter is an interdisciplinary practice forarchitecture, urban design, landscape architectureand interior design. Embedded in our work is acommitment to sustainability in all its forms,underpinned by practice-based research. As acollective of 900 employees organised in networksacross 13 offices in Sweden, Denmark, Norwayand the United Kingdom, we work with clients,communities and consultants to create inclusive,resilient architecture that inspires sustainableways of life.

Figure 1: White Arkitekter Proposes Transparent"Lantern" Design for Akershus Art Center

White Arkitekter is Scandinavia’s leadingarchitectural practice and the third largest inEurope, with projects across Europe, America andAfrica. As an employee-owned company, we liveby our values of sustainability and innovation; theypermeate our entire organisation and everyassignment we pursue. Exploring the field ofarchitecture with dedicated applied research, andchallenging ourselves to improve the ways inwhich we practice, are two key factors that help usto create engaging, lasting architecture.

The power of the collective: In 1951, WhiteArkitekter was founded in Göteborg by SidneyWhite with the aim to improve society througharchitecture. His legacy lives on in our ambition tocontribute towards a more sustainable world. Theideals of collective thinking and employeeownership are as strong as ever today. We arecollectively owned by 616 staff members, 122 ofwhom are partners; working together to benefitsociety as a whole.



Langsames Licht / Slow Light -From Theory Into Practice andFrom Art Into Function

Siegrun APPELTArtistSiegrun APPELTWestbahnstrasse 27-291070 ViennaAustria

AbstractLangsames Licht / Slow Light: From theoryinto practice and from art into function

The concept Langsames Licht / Slow Light islinked to an interdisciplinary exchange ofexperiences and knowledge, which deals with theimpact and effects of light on people, nature andthe environment. Artistic experiences andtheoretical knowledge from technical, scientificand creative fields flow into the overall structure oflighting projects. These include public and privatespaces, both indoor and outdoor. Artificial light,daylight and darkness play just as important a roleas technological innovations and systems that aredocked to various other systems in addition topure lighting. Electrical lighting is part of anever-increasing networked system. Theconception and implementation of lighting inpublic as well as private areas takes place fromthe very beginning in close exchange with theclients and users on site. The aim is to sensitizethe population to the use of light.

Langsames Licht / Slow Light: Von der Theoriein die Praxis und von der Kunst in die Funktion

Mit dem Konzept Langsames Licht / Slow Light istein interdisziplinärer Austausch an Erfahrungenund Erkenntnissen verbunden, bei dem es um dieBedeutung und die Auswirkungen von Licht aufMensch, Natur und Umgebung geht.Künstlerische Erfahrungen und theoretischesWissen aus technischen, wissenschaftlichen und

planerischen Bereichen fließen in dieGesamtstruktur von Beleuchtungsprojekten ein.Diese umfassen öffentliche wie private Räume,sowohl Innen- wie auch Außenbereiche.Kunstlicht, Tageslicht und Dunkelheit spielen eineebenso wichtige Rolle wie technologischeNeuerungen und Systeme, die über die reineBeleuchtung hinaus an diverse andere Systemeangedockt sind. Die elektrische Beleuchtung istTeil eines immer größer werdenden vernetztenSystems. Die Konzeption und Umsetzung vonBeleuchtungen in öffentlichen wie auch privatenBereichen finden von Beginn an im engenAustausch mit den Auftraggebern und Nutzern vorOrt statt. Ziel ist eine Sensibilisierung derBevölkerung in Bezug auf den Umgang mit Licht.



Author’s CVSiegrun APPELT

Siegrun Appelt is an artist based in Vienna,Austria; in 2010 she launched the projectLangsames Licht / Slow Light, that aims for anenergy-efficient and aesthetically sustainableapproach to light and darkness. Light is alwayspart of her exhibition projects, e.g. 288 kW at theKunsthaus Bregenz, 114 kW, Kunsthalle Schirn,Frankfurt, 64 kW at Updating Germany in theGerman pavilion at the 11th Architecture Biennalein Venice; 2010 - 2015 the light project in theWachau, a first practice-oriented project,Langsames Licht / Slow Light, was implemented.

Siegrun Appelt ist Künstlerin und hat 2010 dasProjekt Langsames Licht / Slow Light ins Lebengerufen, das einen energieeffizienten undästhetisch nachhaltigen Umgang mit Licht zumZiel hat. Licht ist immer wieder auch Bestandteilihrer Ausstellungsprojekte, wie z.B bei 288 kW imKunsthaus Bregenz, bei 114 kW in der FrankfurterKunsthalle Schirn oder bei 64 kW anlässlichUpdating Germany bei der Architekturbiennale inVenedig. 2010 – 2015 wurde das Lichtprojekt inder Wachau, ein erstes praxisorientiertes Projektvon Langsames Licht / Slow Light umgesetzt.

OrganisationSiegrun APPELT - Projects

1996 Raum für aktuelle Kunst – Prosart, Luzern(E); Coming up, Museum Moderner Kunst, 20erHaus Wien *; cartografia, Galerie Museum, Bozen*; 1997 it always jumps back / and finds its way,DE APPEL, Amsterdam *; UnbeschreiblichWeiblich, Kunstmuseum St. Gallen; Alpenblick,Kunsthalle Wien *; 1998 Reservate derSehnsucht, hARTware projekte, Dortmunder U *;Stretch, Galerie Index at Tensta Konsthall,Stockholm *; 1999 Raumvorstellungen,Künstlerwerkstatt Lothringerstraße 13, München*; 2001 Mailand – Europa 2000, Padiglione d’ArteContemporanea, Mailand *; Videos, Pavillon,Wels (E) Detourism, Rennaissance Society at theUniversity of Chicago, Chicago *; 2002Kunstverein Friedrichshafen (E); non-places,Frankfurter Kunstverein; Urbane Sequenzen,Kunsthalle Erfurt; Reale Fotografie, KunstraumDornbirn; Nachtschicht, Kunsthalle Faust,Hannover und Künstlerhaus Bethanien, Berlin;2003 LokoMotive, Graz; Je veux, Palais de Tokio,Paris; kunst-en-passant, Basis und Kunsthalle

Wien; 16.777.216, permanente Lichinstallation,Bludenz (E); Skating Cinepolis, Hamburg;hotel/hotel, Landesmuseum Linz*;38.028.797.018.963.968 Lichtinstallation im MaagAreal, Zürich; 2004 Moderato cantabile,Landesgalerie /Landesmuseum Linz (E)*;Einleuchten, Museum Moderner Kunst, Salzburg*;72 KW, a9 forum transeuropa, Museumsquartier;Moderato cantabile, KulturwissenschaftlichesInstitut Essen; 68.719.476.736 Lichtinstallation imMuseumsquartier Wien, MUMOK, Wien; 2005288 KW, Kunsthaus Bregenz (E); Lichtkunst ausKunstlicht, Zentrum für Medienkunst, Karlsruhe *;2006 116 KW, Luminale, Kunsthalle Schirn,Frankfurt; Tunnels, Medienturm Grazon tunnelsand corridors, Medienturm Graz; 2007 ReduzierteAussagen, Kunsthaus Mürz; HOME, Voorkamer,Belgien; Lichtberlin, Tiergarten Berlin; LichttageWinterthur; 2008 Twilight Zone, Mühlheim an derRuhr; Updating Germany, ArchitekturbiennaleVenedig*; 2009 Stark bewölkt, MUSA, Wien*;Entwurfsausstellung für LichtparcoursBraunschweig 2010, Kunstverein Braunschweig;Glow, Eindhoven

Figure 1: Slowlight Lichtprojekt Wachau


The Smartness of Buildings & Cities

206 Sensor Ready and MasterConnect: Simple, Scalable, Standardizedby Peter DUINE, PhD, Signify fka Philips Lighting

208 Intelligent Lighting for Smart Buildings and Smart Cities Enabled by Integrated Sensing Solutionsby Richard FIX, Dr., Bosch Sensortec


Sensor Ready and MasterConnect:Simple, Scalable, Standardized

Peter DUINE, PhDGlobal Product Marketing ManagerSignify fka Philips LightingHigh Tech Campus 485656 AE EindhovenThe Netherlands

AbstractThe lighting industry benefits from properinterface standards and building blocks to makefixtures cost effective, reliable, and versatile. TheXitanium SR product line was instrumental toestablish fixture based control in outdoor andindoor lighting, and through properstandardization in DiiA can now carry the D4Ilogo. The next frontier for interop is the wirelessprotocol standard, that is needed as lighting willbe the last mile in the smart building looking to getorganized through a low latency, cost effective,low power wireless connectivity. We have definedthe use case to drive such standardization, andhave a broad portfolio of products that benefitfrom a standardized approach. The vertical link isprovided by BLE, w meshing orchestrated on lowlatency cost effective Zigbee standard. This willdrive connectivity for indoor applications tomainstream.

Author’s CVPeter DUINE, PhD

Peter Duine is Global Product Marketing Managerfor LED Electronics. Based in Eindhoven, NL, hejoined Philips 25 years ago as an engineer in theResearch Laboratories. He joined the Lightingdivision 15 years ago as an optical engineer, andwas a pioneer in developing LED light enginesand drivers as systems for general lightingapplications. He then moved to productmanagement and is now responsible to develop aproduct line of OEM components for connectedlighting. Peter holds Masters and PhD degrees inSolid State Physics from Delft University ofTechnology. In his spare time he enjoys runningmarathons and biking the tallest mountains allover the world.

OrganisationSignify fka Philips Lighting

Signify is the world leader in lighting forprofessionals, consumers and lighting for theInternet of Things. Our energy efficient lightingproducts, systems and services enable ourcustomers to enjoy a superior quality of light, andmake people’s lives safer and more comfortable,businesses more productive and cities morelivable.

With 2018 sales of EUR 6.4 billion, approximately29,000 employees and a presence in over 70countries, we’re unlocking the extraordinary


The Smartness of Buildings & Cities 207

potential of light for brighter lives and a betterworld.

A company with a purpose

Our purpose is to unlock the extraordinarypotential of light for brighter lives and a betterworld. We achieve this through living our values,innovation, passion for sustainability and desire totransform people’s lives.

Innovators today and tomorrow

For more than 125 years we have pioneeredbreakthroughs in lighting and been the drivingforce for many innovations. Our track record ininnovation is strong and we invest heavily in R&Dto stay at the forefront of technologicaldevelopments.

Signify continues to innovate in LED lighting andis leading the industry’s expansion to lightingsystems in both the professional and consumermarkets. Our position as the industry leader inconnected lighting, makes Signify the lightingcompany for the Internet of Things (IoT).

Lighting knowledge for you

Lighting University offers a comprehensive rangeof educational resources for people who want toexpand their lighting knowledge. With a richhistory in lighting, Philips is uniquely qualified tobridge the gap between cutting edge lightinginnovation and the real-world solutions requiredby professionals.



Intelligent Lighting for SmartBuildings and Smart Cities Enabledby Integrated Sensing Solutions

Richard FIX, Dr.Senior Product ManagerBosch SensortecGerhard-Kindler-Straße 972770 ReutlingenGermany

AbstractSince 2017, there are digital sensors on themarket which allow for simultaneously measuringbarometric pressure, temperature, relativehumidity and air quality on a few mm2. Lightingsystems equipped with those sensors can detectfor instance volatile organic compounds (“VOCs”)in the home or office air and quietly inform theresidents. Long-term studies clearly show theimportance of low VOC levels for well-being. Inthe near future, miniaturized sensors can be usedfor dense sensor networks as well, e.g. for airquality mapping in cities.

Author’s CVRichard FIX, Dr.

Richard Fix was born 1978 in Nürnberg. Hestudied mathematics & physics and finished hisPh.D. 2009 at the Robert Bosch GmbH and theMax-Planck Institute Erlangen. Within the Boschgroup, Dr. Fix was leading innovation studies,research and development projects for productswith chemical sensors for automotive, building,medical and consumer applications. Since 2017,he is senior product manager for environmentalsensors of Bosch Sensortec GmbH.

OrganisationBosch Sensortec

Bosch Sensortec GmbH, a fully owned subsidiaryof Robert Bosch GmbH, develops and markets awide portfolio of microelectromechanical systems(MEMS) sensors and solutions tailored forsmartphones, tablets, wearable devices and IoT(Internet of Things) applications. The productportfolio includes 3-axis acceleration, gyroscopeand geomagnetic sensors, integrated 6- and9-axis sensors, environmental sensors, opticalmicrosystems and a comprehensive softwareportfolio. Since its foundation in 2005, BoschSensortec has emerged as the MEMS technologyleader in the markets it addresses. Bosch hasbeen both a pioneer and a global market leader inthe MEMS sensor segment since 1995 and has,to date, sold more than 10 billion MEMS sensors.More than every second smartphone worldwideuses a Bosch Sensortec sensor.

For more information, please visitwww.bosch-sensortec.com,www.twitter.com/boschMEMS.

The Bosch Group is a leading global supplier oftechnology and services. It employs roughly402,000 associates worldwide (as of December31, 2017). The company generated sales of 78.1billion euros in 2017. Its operations are dividedinto four business sectors: Mobility Solutions,


The Smartness of Buildings & Cities 209

Industrial Technology, Consumer Goods, andEnergy and Building Technology. As a leading IoTcompany, Bosch offers innovative solutions forsmart homes, smart cities, connected mobility,and connected manufacturing. It uses itsexpertise in sensor technology, software, andservices, as well as its own IoT cloud, to offer itscustomers connected, cross-domain solutionsfrom a single source. The Bosch Group’s strategicobjective is to deliver innovations for a connectedlife. Bosch improves quality of life worldwide withproducts and services that are innovative andspark enthusiasm. In short, Bosch createstechnology that is “Invented for life.” The BoschGroup comprises Robert Bosch GmbH and itsroughly 440 subsidiary and regional companies in60 countries. Including sales and servicepartners, Bosch’s global manufacturing,engineering, and sales network covers nearlyevery country in the world. The basis for thecompany’s future growth is its innovative strength.At 125 locations across the globe, Bosch employssome 64,500 associates in research anddevelopment.

Additional information is available online atwww.bosch.com, www.iot.bosch.com,www.bosch-press.com,www.twitter.com/BoschPresse.


Innovations in Lighting Design – Thinking Out of the Box

212 Lighting, Dynamic Urban Spatial Art and Teachingby Ruairi O’BRIEN, Associate Professor, Ruairi O’Brien Lighting Design

216 When Lighting Design Meets Design Thinking: Putting People Firstby Sabine DE SCHUTTER, M.A Architectural Lighting Design / M.A. Interior Architecture, StudioDe Schutter

218 Evolution of Lighting Design Processes in Digital Timesby Bert JUNGHANS, DI, Zumtobel Lighting


Lighting, Dynamic Urban SpatialArt and Teaching

Ruairi O’BRIEN, Associate ProfessorArchitect and Lighting DesignerRuairi O’Brien Lighting DesignAntonstrasse 101097 DresdenGermany

AbstractIn the lecture I will discuss the growingimportance of light in public space and the howdynamic-light spatial artworks could be used tolight public spaces. The basis for my thesis is thepractical work I have done over the years in thedevelopment of a series of micro-light-sculptures.The idea that fascinates me is how a lightingobject such as a “Dynamic Light Spatial Artwork”can create its own magnetic like universe, onecan get lost in the details of such an objectobserving how the light changes depending onthe time of day, the materials used and theposition of the viewer. The sculptures are often litfrom within and can be enjoyed from the distance,but they also pull the viewer in to undertake acloser inspection and the closer you get the morethere is to see in the micro world of the object.The macro context is the city, the market square,the streets or the surrounding buildings at thechosen locations where I installed the works.

The macro context of course is also the universaldimension, the sun, the moving clouds, the moonand the stars, the darkness, all of which are bereflected in mirrored surfaces which are part ofthe objects. The interaction between the bigoutside world and the object’s inside world, createdynamic shadows or moments of light that flashacross the construction, surrounding buildings,upon the pavements or across the faces ofpedestrians in the immediate space. They can bemobile works or they can be installed on apermanent basis as part of the city fabric. Theyare also of course learning vehicles with which itis possible to experiment and test ideas about,light and materials, or on how urban space can be

changed through small implantations and howpassersby react to the irritation of dynamic lightingsituations in such a concentrated form.

Figure 1: Laszlo Moholy Nagy’s Light Modulatorfrom 1930

I am also presently working on a “Light Machine”project with the students in my lighting designcourse at the German University in Cairo thissemester. I will include this in the lecture as aninteresting excursion into the history and theimportance of the Bauhaus regarding lighting and


Innovations in Lighting Design – Thinking Out of the Box 213

to set this into the context of dynamic light withLaszlo Moholy Nagy’s Light Modulator from 1930.I told my students that Moholy Nagy’s lightmodulator was not just a beautiful object thatdemonstrated countless optical effects andlighting scenarios but that it was also a child of itstime and was inspired by the technologicaldevelopments of a world in dramatic change. Inthis context I also understand it to besub-consciously a homage to the changing citylandscapes of Moholy Nagy’s everyday/ night life.In the early part of the twentieth century thedarkness of city life started to disappear at anincreased pace as electrical light lit streets,squares, office buildings, the facades of theatersand cinemas. Lighting advertising signs blinkedand shone, it was a fast- dynamic time and itproduced a dynamic nightlife in light. Theincreased use of large glass fronts in cafes andshops mirroring passersby and the resultingmerging and layering of inside with outside did notescape the photographer’s eye of Moholy Nagy.The movement of cars and trams and peopleprovided the artist with the largest human-madekinetic work of art of all, the modern city.

Today the explosive potential of the presentlyongoing digital revolution is far from being fullyunderstood, but in the bigger picture of things it isclear that the “Times are a changing” again. Whatthis could mean for Lighting and Urban Spatial Artand the teaching of Lighting Design and Urbanplanning will be developed and presented in thelecture with the support of contemporary worksexecuted by myself, examples of projectsdeveloped by my students and some examples ofMoholy Nagy’s exciting work.

Author’s CVRuairi O’BRIEN, Associate Professor

Ruairi O’Brien was born in Dublin, Ireland, he iscurrently an associate professor and head of theArchitecture and Visual design department at theGerman University in Cairo.

With his architectural practice, Ruairi O’Brien.Architektur. Licht. Raumkunst. and his lightingdesign studio, Ruairi O’Brien Lighting Design,O’Brien has executed a large and diverse portfolioof work which includes urban design, marketsquares, innovative and custom-built streetlighting, public and private buildings, hospitals,schools, residential buildings, museums,

memorials, exhibitions and interiors. O’Brienrecently completed an “architectural design guide”and lighting masterplan for the central shoppingarea of Lichtenrade in Berlin.

O’Brien has also worked on theatre and danceprojects, created a series of sculptures,installations and performances with light andexhibited his drawings, light sculptures andpaintings in London, Berlin, Frankfurt (Luminale),Leipzig and Dresden. In 2003 he initiated theLight Poetry Festival LIGHT and WORD as apartner festival to the International Poetry FestivalBARDINALE in Dresden, Germany and curatedthe festival until 2006. In 2014 he was one of 12lighting designers who founded the Federation ofInternational Lighting Designers and served onthe board as Vice President until the end of 2018.O’Brien’s international teaching experienceincludes contracts undertaken for universities inGermany, Czech Republic, Russia and Syria.During his time as a visiting professor at theUniversity of Wismar in Germany (2001-2005)O’Brien helped initiate the international master’scourse in Architectural Lighting Design and wasresponsible for the programs design studios.O’Brien has given lectures, supervised workshopsand organized exhibitions on architecture andlighting design in Japan, the Netherlands, Greece,England, Ireland, Sweden, Finland, Austria, Italy,Latvia and in the USA.

O’Brien studied architecture in London at theUniversity of Greenwich and at the University ofEdinburgh. During his time at Edinburgh hereceived a “Visiting Scholarship” to ColumbiaUniversity in New York. O’Brien’s researchinterests are an extension of the topics he hasdeveloped as an interdisciplinary practicingarchitect and lighting designer: Lighting and thebuilt environment, the development of old and newtowns, the architecture of museums, memory andheritage, Human Centric Lighting Design.

www.ruairiobrien-international.com,www.ruairiobrien-lightingdesign.com,www.ruairiobrien-artworks.com



OrganisationRuairi O’Brien Lighting Design

RUAIRÍ O’BRIEN. LIGHTING DESIGN. offersinnovative high quality individual solutions in lightfrom the first idea through to site supervision: Cityarchitecture, urban space, public and privateparks, museums, exhibitions, lighting fixtures,installations and sculptures. RUAIRÍ O’BRIEN.LIGHTING DESIGN. deals with both daylight andartificial light and offers especially concepts forlight and color. The work undertaken covers allaspects from the conception and design of lightingproposals through to their technical realization.RUAIRÍ O’BRIEN. LIGHTING DESIGN. also offersprofessional consulting service for investors,architects, landscape architects, engineers andalso for providers and manufacturers of lighting.

The expertise offered in our design studio canplay a major role in the further development ofintelligent energy saving buildings, save costs forthe client and the design team and ensure abeautiful sustainable built environment for futuregenerations to come. Light is an integralcomponent of urban planning, architecture andinterior design and demands both technicalexpertise and aesthetic awareness on the part ofthe designer. Light should allow us to experienceour environment, establish an appropriateatmosphere in a room or outdoor space andcreate comfortable and healthy living and workingconditions. The architectural lighting designerRuairí O’Brien and his interdisciplinary teamoffers you a comprehensive holistic approach tothe implementation of your projects which willensure that they will be as near to perfect as ishumanly possible.





When Lighting Design MeetsDesign Thinking: Putting PeopleFirst

Sabine DE SCHUTTER, M.A Architectural Lighting Design / M.A. Interior ArchitectureLighting Designer, DirectorStudio De SchutterHasenheide 9, Hof 2, Aufgang 110967 BerlinGermany

AbstractLighting designers are architects of atmosphereand the visual experience. They can influencetechnology, sustainability and even future trends.In this role, how does one put people first whendesigning for the built environment? How canuser-centred design lead to new insights andinnovations? How does one identify andunderstand the core needs of their users, evenwhen the problem is not clearly defined? DesignThinking is a design methodology that combineslean an agile practices in an iterative designprocess to tackling challenges. It’s extremelyuseful when it comes to complex problems thatare ill-defined or unknown, by understanding thehuman needs and the core values of yourcustomer and stakeholders involved.

In her talk, Sabine De Schutter will illustrate withexamples from their projects, how her studio hasbeen working to integrate the users’ needs andhow the design thinking methodology and processforms a crucial part of their working process withinher team and with their collaborators. Sabine is alecturer at the HPI school of design thinking inPotsdam where she coaches in the professionaleducation as well as the basic and advanced trackfor students. She has worked on many spatialchallenges combining her knowledge as lightingdesigner and interior architect to guide teamsthrough various space-related problems usingdesign thinking tools. In this talk, she will give anintroduction to design thinking, explaining the link

to the Bauhaus movement and illustrate howdesign thinking is more than just a toolbox, it is amethod to innovate and a mindset.

Learning Objective 1: Understanding what designthinking is and what it is about

Learning Objective 2: Gaining insight in how touse this as a method, tool and mindset for yourwork and business

Learning Objective 3: Be able to describe designthinking and the link to other design methods

Learning Objective 4: Gaining an understandingof how this can be used in our industry, and howto tackle spatial issues with design thinking



Author’s CVSabine DE SCHUTTER, M.A ArchitecturalLighting Design / M.A. Interior Architecture

Sabine De Schutter is a Berlin-based lightingdesigner and runs her own architectural lightingdesign practice – Studio De Schutter. She hasworked on projects ranging from creative lightingfor working environments, to museum lighting andinstallations for public spaces. With herhuman-centred approach to design, she strives toblend this mindset into all her projects andcollaborations. As a multifaceted entrepreneur,she also works at the HPI School of DesignThinking. For her research and design, she hasbeen awarded prizes such as "Young Lighter ofthe Year” 2013, and a place in the "40under40" asaspiring lighting designer.

OrganisationStudio De Schutter

Our projects range from museum lighting throughto office lighting and installations for publicspaces. Sabine De Schutter is a lighting designer,design thinker and educator, with a background ininterior architecture. Simultaneously, her passionfor working with people led her to study designthinking, which trained her in different pedagogicalmethods and techniques to createhuman-centered design. Besides working ondifferent lighting design projects, Sabine teachesat the HPI d.school, Hochschule Wismar and is anIALD Educator.

Isabella Mordeglia, Lighting architect and has anadditional degree in Management of Artistic andCultural Heritage.

Shintaro Ueno, Lighting designer.

Figure 1: Team, Studio De Schutter



Evolution of Lighting DesignProcesses in Digital Times

Bert JUNGHANS, DIHead of Lighting Solutions & Concepts and Atelier of Light (AoL)Zumtobel LightingSchweizerstrasse 306850 DornbirnAustria

AbstractCurrent Status: Today our clients live and work ina world where information is shared in highfrequency and data is exchanged at high speedvia networks like Facebook or WhatsApp. At thesame time they are immersing into distant worldswith the help of VR Headset systems.

The processing of digital content throughgateways and interfaces is improving and handlingdata is becoming more and more intuitive. Forexample: goods ordered online are oftendelivered within twenty four hours. How does thisapply to the lighting world, is there an analogy”?

At the moment the lighting world consists ofcomplex and singular offline solutions, combinedwith lengthy and faulty, ineffective processes.

The challenges for improvement are:

How can we communicate specific properties andUSPs of different products, systems and solutionsin a short lived world with tight product and projectcycles where there is no time to wait for productsamples?

Solution proposals:

- Mobile devices (Smartphones, Tablets) with livedatabase access - Augmented reality with virtualluminaires in real surroundings - Virtual RealitySolutions for marketing purposes and projectwork. (cardboard panorama tour, VIVALDI, onlineplayer)

Desired Result: Creating a strong impact and alasting impression on the client by implementing

simple and easy to use tools and methods directlyat the point of sales, and thus improving thespeed of the decision making process.

How are complex system solutions such ascontrols, sensor technology, IOT, modularsystems, et cetera, planned and handledefficiently?

Solution approach:

- Efficient 2D/3D planning tools with gateways toBOM / BIM / Quotations systems, e-Commerce -Graphically based configurators for products,lighting solutions and system solutions, focusingon the application and user instead of atechnological focus and implementing gateways toplanning-, quotation- and e-commerce systems.

How to provide planning and product data for acontinuous planning process with interfaces toother trades?

Solution approach:

- Focus on flexible “open-source” backbonetechnology, e.g. Eastergraphics pCon-Technology- Cloud based services with cross-tradefunctionality (e.g. DALEC - Daylight and ArtificialLight with Energy calculation including heating,cooling, air conditioning, facade systems, lightingcontrols)

How to convince customers of the value asophisticated and high standard lighting solution?

Solution approach:



- Increase of interactive lighting design processes(e.g. Hilite) and easy to use and understandpresentation tools at the point of sales. (VR-ARApplications, VIVALDI-Online Player, OnlineCardboard Panorama Tours How to use thenecessary data for the design process easily?

Solution approach:

- Online created Data packages with on demandaccessibility

Conclusion:

The contribution shows examples andexperiences for the above shown aspects andlinks them to a solution approach. The main focusis to transfer the importance of high lightingquality and innovative system solutions as asignificant added value for customers and partnernetworks in the context of a digitized world.

The emphasis is on simplifying complex systemsand speeding up planning and optimizing projectprocesses in conception, calculation, optimization,visualization, quotation, commissioning andlifecycle management.

During a workshop some of these aspects can betested and experienced in real time.

Author’s CVBert JUNGHANS, DI

Education: Technical University Ilmenau –Lighting Engineering

Research Areas

* Lighting Application (Indoor+Outdoorapplication) * Virtual Reality (Terminal V –Lauterach, VRVIS Vienna) * Augmented Reality(Lighting application focus with Hololens / mobiledevices) * Interactive Dynamic LightingVisualisation (Software) * Stochastic Ray LightingDesign (Software) * Realtime Raytracing andAnalysis (Software) * Daylight / ArtificialSimulation * Building Energy Performance

OrganisationZumtobel Group

The Zumtobel Group is an international lightinggroup and a leading supplier of innovative lightingsolutions, lighting components and associatedservices. With its core brands, Zumtobel, Thornand Tridonic, the Group offers its customersaround the world a comprehensive portfolio ofproducts and services. In the lighting business,the Group with its Thorn and Zumtobel brands isone of the European market leaders. Through itslighting components brand, Tridonic, the ZumtobelGroup plays a leading role worldwide in themanufacture of hardware and software for lightingsystems (LED light sources and LED drivers,sensors and lighting management). The ZumtobelGroup’s service offering is one of the mostcomprehensive service offerings in the entirelighting industry, including consultation on smartlighting controls and emergency lighting systems,light contracting, design services and projectmanagement of turnkey lighting solutions, as wellas new, data-based services focused ondelivering connectivity for buildings andmunicipalities via the lighting infrastructure.

The Group is listed on the Vienna StockExchange (ATX Prime) and currently holdsaround 5,900 employees. In the 2017/18 financialyear, the Group posted revenues of EUR 1,196.5million. The Zumtobel Group is based in Dornbirnin the Vorarlberg region of Austria.


Light and Lighting Design – Thinking Different

222 When Lighting Design Meets Design Thinking: Putting People Firstby Olga TUZOVA, MA, Politecnico di Milano

224 Illuminance, Apparent Brightness and Circadian Rhythms. A New Era in Lighting Design?by Alexandra KALIMERI, ME Engineers

226 Good Night = Good Light. New Ways to Reduce the Use of Artificial Lighting - Especially DuringNightby Ofer KEREN, Keren Energy


When Lighting Design MeetsDesign Thinking: Putting PeopleFirst

Olga TUZOVA, MALighting DesignerPolitecnico di MilanoVia Privata Flumendosa, 1020131 MilanItaly

AbstractThe progress can’t be stopped. Its influence can’tbe reduced for the future generations. However,it’s up to us to decide how to use the newopportunities. Possibilities of our brains can beresearched and developed today. On one hand,people can be nursed more efficient, taking theirfeelings and emotions into account. In contrast,life itself can be destroyed by playing with it atsame time. One thing can be proclaimed: with thedevelopment of Neurotechnology we have a verypowerful instrument in our hands today. It is notstill well tested and used. But we already can seethat the world of artificial intelligence and horrormovies about robots and machines are becomingcloser to us. The research during Summer SchoolNeurotheatre, organized by Tallinn University andtaking place in St. Petersburg (Russia) in 2018,was intended to identify how far we came withartificial world today. We got used to create alighting design for performances and shows tolead observer’s emotions, to create their moodand have special feelings the stage can give to aperson. During CUCO performance this habit waschanged completely. The audience was the oneuniform organism who created the lighting designon stage itself with the help of mood andemotions. This collaboration between human,computer and perception was all the moreinteresting to see in the result of a newinterpretation of this relationship. We got used touse music to help dancers on stage to present theidea and mood. The point was to break this rulecompletely, moreover to provide a competition

between human creation and human being itself.Before the performance, there were 5 paintingsselected, different emotional effects causing.Feedback they gave was tested by Muse — BCIdevice. Help of artists in choosing the colors aspart of emotional perception was used. All thecolors were added to AI. With these colorsaudience was able to perform colors with theiremotions, drawing specific lighting projection onthe screen. The second part was surrendered tosound. The question was if it can move attentionof audience to a different mood. The melody waschanging at some point completely from the wholescene line. Emotions of observers could stay onthe same level or follow the music itself. Alldifferences were projected immediately on thescreen. The third part presented as human beingitself presenting by sight of actor. The power ofperson in comparison with all the techniques inthe world was tested the same moment. At somepoint the actor had to change the mood of thescene against the mood of sound and lightworking together. With this connection andinteraction between different elements ofperformance: lighting, music, actor and audience,in the way has never existed before, a colorfulresult in form of lighting projection on screen wasachieved.

KEYWORDS: Neurotechnology, performance,experimental methods, theater, comparison, colorappearance, techniques, painting, actor work,show, neurotheatre


Light and Lighting Design – Thinking Different 223

Author’s CVOlga TUZOVA, MA

Shortly about me: • Neurotechnology theaterperformance with Tallinn University (Russia) •Charity performance participation (Ireland) • 3lighting design projects realized for theatres withPaolo Calafiore (Italy) • More than 10implemented projects in lighting design (Russia) •Interactive installation "So different light" (Russia)• Online Lighting Design School foundation(Russia) • 3 years "LIDS" conference speaker(Russia) • Master degree in lighting design andLED technology (Italy) • Product design degree(Italy)

Certifications: • the 1st level University Master inLighting Design and LED Technology

Figure 1: Komsomolskiy avenue night view

OrganisationPolitecnico di Milano

Politecnico Milano is a scientific-technologicaluniversity which trains engineers, architects andindustrial designers.

The University has always focused on the qualityand innovation of its teaching and research,developing a fruitful relationship with businessand productive world by means of experimentalresearch and technological transfer.

Research has always been linked to didactics andit is a priority commitment which has allowedPolitecnico Milano to achieve high quality resultsat an international level as to join the university tothe business world. Research constitutes aparallel path to that formed by cooperation andalliances with the industrial system.

Knowing the world in which you are going to workis a vital requirement for training students. Byreferring back to the needs of the industrial worldand public administration, research is facilitated infollowing new paths and dealing with the need forconstant and rapid innovation. The alliance withthe industrial world, in many cases favored byFondazione Politecnico and by consortiums towhich Politecnico belong, allows the university tofollow the vocation of the territories in which itoperates and to be a stimulus for theirdevelopment.

The challenge which is being met today projectsthis tradition which is strongly rooted in theterritory beyond the borders of the country, in arelationship which is developing first of all at theEuropean level with the objective of contributing tothe creation of a single professional trainingmarket. Politecnico takes part in several research,sites and training projects collaborating with themost qualified European universities. Politecnico’scontribution is increasingly being extended toother countries: from North America to SoutheastAsia to Eastern Europe. Today the drive tointernationalization sees Politecnico Milano takingpart into the European and world network ofleading technical universities and it offers severalcourses beside many which are entirely taught inEnglish.



Illuminance, Apparent Brightnessand Circadian Rhythms. A New Erain Lighting Design?

Alexandra KALIMERILighting EngineerME Engineers57 Great Suffolk StLondon, SE1 0BBUK

AbstractThe two basic factors of lighting standards aroundthe world are the average illuminance and theuniformity of the workplane. Today, it becomesevident that visual performance alone is not asimportant for interior and exterior architecturallighting. Illuminated screens and automation haveshifted dramatically the way we work, live andexperience our environment. Research provesthat the appearance of vertical and near verticalsurfaces is what affects our perception of spaces.Additionally, over the past two decades we havewitnessed significant scientific breakthroughsregarding the function of our circadian system andits connection to light. The question that arises iswhether illuminance should continue to be themain quantitative value mentioned in our lightingstandards and guide the lighting practice. Thispaper provides an overview of research related tothe fields of apparent brightness and circadianregulation and examines whether these criteriacould be incorporated in the interior lightingdesign practice.

Despite being a characteristic of the humans’visual sensation, brightness can be expressedwith quantitative terms. From Waldram to Cuttle,researchers have stated that apparent brightnesscan be quantified as a function of luminance andthe adaptation level of the viewer. Although withsome limitations, Hopkinson’s diagram, Waldram’s Design appearance method and Cuttle’ sapproach provide ways of designing based onluminance. Additionally, research proves a strong

correlation between light spectrum and apparentbrightness. For a range of colour temperatures,the gain in perceived brightness increases linearlywith the increase of colour temperature.

The spectral power distribution of a light source,its intensity as well as the timing and duration ofthe available light are some of the qualities thatcan impact the function of our circadian system. Itis possible to optimize the light spectrum of lampsby taking into account the circadian actionfunction which should be higher in the morningand lower in the evening. Also, althoughmelatonin suppression occurs in relative highilluminance measured on the eye and appears tosaturate above 1000lx, activating circadianrhythms can be effectively controlled in lowerilluminance with the introduction of cooler lightsources. Regarding the timing, exposure to highlevel of illuminance in the early or late hours of thenight results to phase delay and phase advance ofthe circadian system respectively depending onbody core temperature. Finally, melatonin’ ssuppression in humans starts around 10 minutesafter the eyes have been exposed to light andceases 15 minutes after return to darkness.

The lighting design of the building interior requiresa new approach. It is possible to design based onapparent brightness and not illumination. Slightlydeveloping the available tools will allow us tofollow a more human centric design process. Onthe other hand, although circadian regulation can



be promoted with selective use of artificiallighting, the complexity of the circadian systemdictates careful use of lighting techniques that caneffectively entrain our day night circle.

Author’s CVAlexandra KALIMERI

Alexandra Kalimeri studied Electrical Engineeringin Athens. She was introduced to the fascinatingworld of lighting through the PhotometricLaboratory in NTUA and decided to continue herstudies with the MSc Light and Lighting at UCL.

Alexandra has been involved in various differentprojects, from rail stations with rigid LightingStandards to extremely creative high-end retaillighting installations. This has spiked her interestto research the variables of a holistic LightingDesign approach.

Currently, she continues her studies in InteriorDesign and tries to inspire the next generations ofengineers through STEM activities.

OrganisationME Engineers

OUR VISION: We shape buildings into placeswhere people have unforgettable experiences. Wedesign environments to live, work, and perform in,led by technical expertise and inspired by genuineinnovation. We do it through talent andtechnology, hiring the best engineers who can getthe most out of our state-of-the-art systems.

Working in a design-led, creative environment, wecollaborate openly with the world’s top architectsand builders to develop responsive, cutting-edgeengineering. It’s not about doing what’s beendone before – it is about creating a new possible.

WHO WE ARE: We combine exceptional talentand creativity with a real understanding of whatpeople need from their environment. Our teamsare made up of hard-working, uniquelyexperienced engineers who have completecommand over the sophisticated technologyessential for modern design.

Figure 1: GRIFFITH PARK OBSERVATORY, LOSANGELES, CA, UNITED STATES. Completerenovation of iconic landmark.

Yet advanced systems and the smartest minds willonly get you so far – the only way to make a realimpact is to cultivate a culture of service, to ourclients, to our buildings, and to our communities.Our engineers are licensed throughout the UnitedStates as well as internationally.

HUMANIZING BUILDINGS: How do people feelinside a building? Are they thriving? Are theyrelaxed? Are they productive? Architects designfor people, yet the work of engineers can alsoaffect experience in just as powerful a way.Everyone needs an engaging environment.

A place that responds to their needs so they canmake a strong emotional connection to wherethey spend their most important moments. Weturn square footage into human experience.



Good Night = Good Light. NewWays to Reduce the Use of ArtificialLighting - Especially During Night

Ofer KERENCTOKeren EnergyHaala 5, PO Box 214Shave ZionIsrael

AbstractWe are addicted to artificial light.

The main goal of artificial Lighting developmentwas clear: Extend the hours of “day light”

Today we use to shine every office and our ownhome during the day.

The goal of my workshop will by regarding 10responses that can help us reduce artificiallighting during the day.

Completely stop lighting when there is enoughnatural light – Each room or space need at leastfive levels of lighting:

Daylight: – 1/3 of the install lighting - 2/3 of thelighting - All lighting on - And all lightingcompletely off

Night fell - at the base - the same feeling that wehave on the sea sure the night is falling, isnecessary to any human being every day in everybuilding. Without the daily feeling of sunset, weare challenged by the lighting and it is not reallysafe for our health. At our home - when there isno feeling that the sun set - the situation is worse -the lighting threatens our security and ourmind-set. Avoid light Invading - Invasive light iscaused by light fixtures that allow us to read anewspaper ad outside the building - Invasive lightblock our option to see from our window and actlike blinding Our own security damage it is worse

than any reasonable logic - the “enemy” can seeus and our actions. Our goal is exactly theopposite. As kids we learn that no one can sailagainst the wind and fight against the sun.Lighting at a constant tiring intensity - at nightbeing inside a structure with constant intensity - isreally unhealthy. It can be easily solved by cleveruse of varying intensity. It is unnatural andinhuman to be in the light with a constant intensityfor a whole night.

The purpose of the workshop is to find new waysby using the power of consultants andprofessionals to reduce the use of artificial lightingduring the evening and night hours. The goal ofour workshop to identify smart solutions andbetter use of environmental resources. Inconclusion, it is clear to us that more accidentsare caused at home during the night. The childrenwho are playing in the living room and do not seethe sun set do not feel the fatigue and at one pointthey crash on one of the furniture. Together in theworkshop we will find a way to prevent theaccident. and on the road we will improve thequality of life for all of us/ Rules of thumb – noteverything that shine is gold it can be just lightpollution that costs us energy - and not reallyhealthy.



Author’s CVOfer KEREN

Ofer Keren founded Keren Energy a leadingcompany in changing the culture of energyconsumption:

Ofer brings over 30 years of experience in theEnergy Efficiency field, Ofer is an expert inutilizing knowledge, experience and a great dealof creative thinking in finding diverse solutions andtailor making them for each organization. Ofer hasdeveloped a clear systematic methodology for thereduction of energy use and has proven over theyears that every organization can reduce a third ofthe energy consumption by means of simpletechnology and behavior change. Ofer isconsidered an expert in methodological creativethinking.

OrganisationKeren Energy

Ofer founded Keren Energy Ltd. as a leadingcompany in changing the culture of energyconsumption, and management of energyresources. Keren Energy Ltd. is working withinthe R&D framework of the Ministry of NationalInfrastructures, Energy and Water Resources,Strategy Fund, Office of the Chief Scientist. Oferbrings more than 25 years of experience in theEnergy Efficiency field, in industry and in manydifferent organizations throughout Israel. Ofer isan expert in utilizes knowledge, experience and agreat deal of creative thinking in finding diversesolutions and tailor making them for eachorganization. He has developed “Nidan’ssystematic methodology for the reduction ofenergy use” and has proven over the years thatevery organization can reduce a third of theenergy consumption by means of "goodbehavior”. In the past, Ofer founded andco-partnered for over 10 years "Nidan" company,working in diverse positions in the industry field inIsrael (automation and robotics, managementdevelopment and integrations, managingelectricity and more). Ofer is considered an expertin methodological creative thinking (SIT – Tel-AvivUni.), a certified electrician licensed for highvoltage, has degrees in Business Administration(Israeli institute of Technology – Technion), andMechanical and Electronics practical engineering(Ruppin). Ofer served in the IDF Armored Corps

as a commander’s trainer and instructor. Ofer ismarried and a father of three.

Yet advanced systems and the smartest minds willonly get you so far – the only way to make a realimpact is to cultivate a culture of service, to ourclients, to our buildings, and to our communities.Our engineers are licensed throughout the UnitedStates as well as internationally.

HUMANIZING BUILDINGS: How do people feelinside a building? Are they thriving? Are theyrelaxed? Are they productive? Architects designfor people, yet the work of engineers can alsoaffect experience in just as powerful a way.Everyone needs an engaging environment.

A place that responds to their needs so they canmake a strong emotional connection to wherethey spend their most important moments. Weturn square footage into human experience.


The Process of Modern Lighting Designs

230 Stakeholders: How can They be Organized in Order to Achieve the Desired Quality of PublicLighting in 2030?by Iris DIJKATRA, MSc, Atelier LEK

234 Light Designer’s Role in Complex Projectsby Diana GALIC, M. Light Design, M. Econ., NOVA-LUX


Stakeholders: How can They beOrganized in Order to Achieve theDesired Quality of Public Lighting in2030?

Iris DIJKATRA, MScCEOAtelier LEKMathenesserdijk 418E3026 GV RotterdamThe Netherlands

AbstractHigh complexity in the ’engineered’ LightingBusiness was so far preventing similar competitionlevels and disruptions in the concerned industries.According to the author of this paper, EngineeringBusinesses and lighting Business in particular arethe next field for disruptive developments in theirbusiness structures - and this not because of theLED-Technology driven disruption but because ofa completely different setup of competingstructures in the markets.

“HOW DO STAKEHOLDERS WORK TOGETHERAND HOW CAN THEY BE ORGANISED INORDER TO ACHIEVE THE DESIRED QUALITYOF PUBLIC LIGHTING IN 2030?”

Frogs have the peculiar characteristic that they donot perceive subtle changes in the temperature:they will forget to jump out if you slowly bringwater to boiling point. This “Boiled Frogsyndrome” is also happening within the field ofpublic lighting; subtle risks and changes are notnoticed; it is more comfortable to keep the statusquo.

It is important to periodically evaluate and monitordevelopments and trends, as these will affect thequality of public lighting in the future ahead. The‘Roadmap Public lighting 2030’ provides a basisfor working on specific situations: to be able to

ask the right questions and to anticipate choices.Only municipalities and companies thatunderstand future scenarios will understand howto act now and in the future.

This process was led by Iris Dijkstra (Atelier LEK)and Kirsten van Dam (Out Of Office). Both arequalified industrial design engineers, nowspecialised in lighting design and trend analysis.This combination connects the developmentsoutside with the needs within the field of publiclighting. Together with a team of differentdisciplines platform-meetings were organizedwhere consultants, contractors, designers,municipalities and participants from outside thefield of Public Lighting discussed different relevanttopics. At the moment several spin-off projects areunderway, which go deeper into the specificsubjects.

FROM TRENDS TO TRANSITIONS:RE-DEFINING THE QUALITY OF URBANLIGHTING

The market is changing on many fronts: theadvancement of LED technology, telematicmonitoring, the growing demand for safety inurban environments, intelligent controls and theintegration of light with monitoring. Furthermore,there is a call for less light pollution and


The Process of Modern Lighting Designs 231

municipalities want to achieve the integratedmanagement of other lighting qualities. Thisamounts to cooperation with new players.Companies and governments no longer decidewhat is good for the citizen; new values such assharing, locality, solidarity, sustainability andhuman scale are becoming more central.

The investment climate and the financialcapabilities of the parties that traditionally playeda major role in the development of public spaceare under pressure. The government takes a stepback and in this context other financial modelsand methods arise.

It is important to find a new balance and movecloser to the “new advisors” and designers ofpublic spaces. There are many opportunities,provided that all parties are familiar with termssuch as social capital, smart grids, crowdfunding,sharing-economics, I-beacons, Internet of Things(IoT), 3D printers, and pop-up public values.

Summarizing the trends leads to four futurescenarios in the field of public lighting. Here wesee that not only the definition of traffic safetychanges (imagine the city full of intelligent,self-driving cars), but also other issues andthemes emerge. There is confusion aboutfrequently used terms such as participation,innovation, social safety, ecological demands and(local) energy-grids. More content and nuanceneeds to be created that will lead to a betterunderstanding of these terms. The values andinterests of citizens, private parties andgovernment play an important role in this process.

RE-DEFINING THE WAY PUBLIC LIGHTING ISORGANISED

Every municipality is organised differently when itcomes to the design, management andmaintenance of public lighting. Self-knowledge ispower: by understanding their own organisationand their context, they will be better prepared toforesee what the impact of the trends will be.

Experts in the field of governance, have giventheir view on the changes taking place in the rolesof the government, the private sector and society,respectively. They foresee a rapid development ofcitizen participation in government throughinteraction, co-creation, and in many cases evenby taking initiative. Also new ways of organisationare emerging, like the experiments undertaken inEindhoven and other cities in Europe. They

approach the market with a long-term vision,looking for a way to outsource the content to themarket. It is then up to the market to translate thevision into requirements and substantive choices.

But all forms of government organisation shouldtake into account the issues of 1. Lawfulness, 2.Efficient use of all resources and 3. Legitimacy. Ifthese issues are not balanced, there is theinevitable risk of developing the ’principal - agentproblem’ – when municipalities have too littleknowledge compared to the contractor. Anotherrisk is limited scope for other creative andinnovative companies, other interests, whenmunicipalities enter into long-term contracts withlarge all-in-one consortia.

The teams of professionals who ask the rightquestions and make the right choices comprisepeople and knowledge from the social, creativeand technical fields. They connect industry,municipalities / developers, architects and usersand combine knowledge of (light) technology andcreativity to create practical manageable lightingapplications. Furthermore, they know how to starta dialogue with users through a process, byapproaching light not as a goal but as a means forcreating an experience for the users. And finally,their choices are made independent ofcommercial interests or arguments, and therebycan achieve maximum results with minimumresources.

Team members will find each other throughplatforms and networks. More and more peoplefrom different backgrounds will participate in theteam of public lighting professionals, andguidelines should therefore be made accessible toa wider and different audience.

CONCLUSIONS:

This process started with the question: How dothe stakeholders work together and how are theyorganised in order to achieve the quality laid downfor public lighting systems in the Netherlands by2030? During the process a number ofopportunities have emerged to link new andexisting parties and to ensure the quality of publiclighting in the future. The three main opportunitiesare: A. Platform for inspiration: exchangingexperiences, inspiration, trends and best-practiceexamples B. Professionalisation of the disciplineof public lighting by: 1. Creating a faculty to trainlighting professionals, and 2. Ensuring“independent lighting professional” is a protected



title C. Creating flexible management teams forpublic lighting in the future, teams who areflexible, open and critical, understand theirposition and context, and know when and who toinvolve. They also remain updated on theknow-how required for good quality lighting, andthey use the choice-making matrix forparticipation and the five other new definitionsbefore embarking on a project.

Author’s CVIris DIJKATRA, MSc

Profession: Industrial Designer, Lighting Designer

Current position: owner Atelier LEK, ind. lightingdes., Member of PLD-A 2006-2012 (end ofPLD-A)

Years of professional experience: 12

Qualifications: TU Delft, industrial designengineering, 1995-2003 (MSc), Specialisation:Design for Sustainability (DfS), Lower dauphinHighschool, PA (USA) 1992-1993,

Career: Atelier LEK, 2004-now, Alfa Romeouniversity design intern-ship, 2001

Specialitions: Design and realization of complexassignments in public space, exterior and interiorof buildings, working in co-creation with amulti-disciplinary team of architects and engineersand focussing at all times on the demands of theend-user and sustainable parameters.

OrganisationAtelier LEK

Iris Dijkstra finished her Masters degree inIndustrial Design Engi- neering at the TechnicalUniversity of Delft ( “Design for Sustain- ability”)and since has specialized in lighting design. In2004 she founded Atelier LEK (Light & Color) awidely-oriented, independent lighting designcompany that focusses on the quality of lightingexperience: in public spaces, exterior and interiorof buildings.

Atelier LEK works at a variety of levels: masterplans (Arnhem City Centre), illuminatingarchitecture and art (Janskerk in Utrecht, Witte deWith, Rotterdam) and interior lighting. (Headoffice

Rands- tad, Theatre LantarenVenster, LibraryRotterdam). But also corporate identity andproduct-design are part of the palette of skills ofour Atelier, such as the design of the BicycleChain for the 11 km cycling route on theRijnWaalpad and the award winning Central PlazaRotterdam. Our Atelier is furthermore specializedin working with a range of different disciplines inan integrated design process. Light represent- edmany values and is part of a larger whole. Wetherefore believe it is very important to worktogether with all involved disciplines andstakeholders to achieve the best quality andsustainability in the lighting plans.

Figure 1: Atelier LEK Project





Light Designer’s Role in ComplexProjects

Diana GALIC, M. Light Design, M. Econ.Principal Light DesignerNOVA-LUXGunduliceva 36b31000 OsijekCroatia

AbstractSpace is defined by light. An atmosphere iscreated by light. Therefore, the deepunderstanding of the architectural content of thespace, the purpose and the integrative complexityof the project is the focal point from where lightdesign should be created.

Multilateral cooperation with the Client, Investor,Architects, Interior Designers, Architecturalconservators, Engineers, the final users of thespace and other subjects, makes the final resultswell-balanced and successful, adding the users’comfort all together.

Light concept as the most creative phase isdeveloped by combining experience andopen-minded approach to each project. In orderto explain the initial light concept, a high qualitylighting visualizations on 3D model of object maybe created in order to show realistic future effectof the light. How to use this method and haveeven more powerful tool? This paper will show aspecific method in the form of a special software,which include interactive elements i.e. possibilityof changing various lighting scenes by the user inreal time.

A lighting concept is afterwards crystallizedthrough the analytic approach into drawings,schematic design, electrical design, specificationsetc. But, during that process, from the designphase until implementation, it is necessary tohave a good coordination with architects, interiordesigners, city government and city authorities,UNESCO, architectural conservators, sometimeseven hundreds of subjects involved in projectdesigning process. How to find the best solution

for all if interests of various subjects are incontradiction? How to deal with endless changesin design inputs? How to insist on some greatideas when there is no understanding for yourpoints? Some interesting examples from ourpractice will show how this problems can beresolved, sometimes by using a special tactics,sometimes with a simple humor.

Finally, we light designers, are just a smallparticles in a bigger, complex system in a giventime. But, only if we create a great light designsolution, than the work of all other subjects will bevisible. If we don’t lit a clock hands and all 12numbers, than even the best clock will notaccomplish its purpose to show the time whendaylight disappear.

Author’s CVDiana GALIC, M. Light Design, M. Econ.

Diana Galic holds a Diploma in Master studies ofLight design gained at Istituto Europeo del Designin Milan, as well as Diploma in Master study inEconomics in the filed of Cybernetics. She is aprincipal light designer and co-owner of acompany Nova-lux founded before 16 years withher husband Zlatko, Master in Electrical andElectronics Engineering. Their team of 16 peopleare working internationally on mega projects inQatar, Oman, Kazakhstan, Turkey, Belgium,Austria and other European countries, they arespecialized in architectural light design ofstadiums, shopping malls, hotels, bridges andancient city cores.



OrganisationNOVA-LUX

Creative and unique solutions

If you search for better and different light designand/or electrical design solutions, as a result ofreally creative approach.

Top quality

If you want a top service in light design and/orelectrical engineering, without being worriedabout the final result.

A complete service

Our multidisciplinary team can take care of anytask and problem in the area of light design andelectrical design.

Figure 1: City of Crikvenica, Croatia. Light designof this walking area near center of Crikvenica citytransform it to a romantic oasis for walking. Today,this area is a tipical street with parking slots whichis not attractive during night, and the area that issupposed to be walking paths, today nobody isusing. The investor wish to revive this area, tocreate an invitational atmophere to attract people towalk here in evening hours. By this project, theywant to create a huge central area for eveningwalking, since between the city center and this areaonly a green park is situated. With the newarchitecture redesign made by Rechner Architects,a soul is given to this space.Our light design simplefollows a story of the architects, with creating acosy space for resting and enjoying in the view.Therefore, a simple and sophisticated architecturallighting is created for two bridges, an old one andnewer walking bridge. No glare was an imperativehere. Just an atmosphere.


Digitalization in Lighting – Impacts on Users and Usages

238 Light Connects – The Symbiosis of Light and Digital Content Creates New Levels of CustomerExperienceby Andreas HENRICH, Diplom Designer, fh+p (faust henrich and partner ) / Schmitz WILA

240 Lighting Control - Truly Wirelessby Matthias KASSNER, DI, EnOcean

244 Best Practice in Wireless Lighting Controlsby Antonio ARTECHE, Casambi


Light Connects – The Symbiosis ofLight and Digital Content CreatesNew Levels of CustomerExperience

Andreas HENRICH, Diplom DesignerStrategic Innovation and Marketing Consultantfh+p (faust henrich and partner ) / Schmitz WILAKlosterstraße 4659227 AhlenGermany

AbstractLight is a transmitter of information. Initiallycarrying virtually no information it receives itsinformational content not before it reflects frommaterial surfaces. The informative picture of ourenvironment is generated through theinterpretation of countless data received byreflected light. Neutral or uncoded light was usedin the beginning of the communication betweenships through using the morse alphabet in the wayof short or long light signals to exchangemessages on the oceans. Light as language so tospeak.

Today light can offer extended informationalpossibilities especially in retail environments.Light directs people, i.e. through the navigationwith Visual Light Communication (VLC). Incomparison VLC driven navigation in interiorspace gives the same orientation as GPS drivennavigation systems in the exterior environment.The satellites in interior space are alreadyexistent: luminaires. VLC enabled luminaires aresending out light with modulated digital signals viathe LED modules. Beside those signals additionalparameters are detected and adjusted withpreviously stored cloud data by smartphones. Theidentification of the position occurs with apreciseness of up to 20 centimeters. To use thissystem a VLC conform lighting scheme is

required finalized by an on sight venueenablement. As a result a Software DevelopmentKit (SDK) is generated as a precondition forfurther software extensions.

This second software component can createdigital functions which lead to an enhancedcustomer experience. As the SDK is integratedinto the customer addressing App of the retailer,additional functions can be added to the purenavigation functionality. Product search, product-and price information, shopping lists, advertisingor incentive and loyalty systems with coupons cancomplete this kind of connected full service.

Through the optional recording of customermovements in the form of heatmaps or viewingdirections operators can grasp streams ofcustomers or goods as well as customerbehaviours. Beside individualized offerings theamount of data can be used to optimizeplacements of goods or store layouts. In additiona targeted timing of offers can be set as well asthe specific operational planning of staff.Furthermore deeper product information could bemade available such as nutrition details, rawmaterial content, or certificates of origin.Personalized offers are generating a satisfactoryuser experience and bonding.


Digitalization in Lighting – Impacts on Users and Usages 239

The options of indoor navigation accompanied bydigital services are not limited to retail at all.Applications in large infrastructure projects likeairports of educational facilities as universities canbe enriched by better orientation through indoornavigation as well as through extendedinformation and communication proposals. Besideits basic function to allow a functional andemotional perception of space light can be used inthe digital age to guide precisely and to connectpeople better. The presentation will show howVLC will work in conjunction with digital servicesand functionalities and will point out futureapplications.

Author’s CVAndreas HENRICH, Diplom Designer

Andreas Henrich has operated over ten years inthe areas of product management, innovation,design and marketing in leading positions, mainlyfor the lighting manufacturer WILA. After takingover the company together with two partners in2005 he lead the german entity as ManagingDirector until the beginning of 2017. After WILAbecame part of the Nordeon Group he wasresponsible for strategic innovation and marketingprojects for the brands Nordeon, Schmitz andWILA. Furthermore he works as consultant forfh+p (Faust Henrich and Partner), a brand andinnovation agency.

Organisationfh+p (faust henrich and partner ) / SchmitzWILA

fh+p is a creative office for brand architecture.That includes the development of distinctivecompany profiles, coherent brand strategies,innovative product-, design- and service conceptsas well as marketing communications. To shapemeaningful and relevant brand identities. Theteam works cooperatively together with amultidisciplinary network of specialists.



Lighting Control - Truly Wireless

Matthias KASSNER, DIVP Product MarketingEnOceanKolpingring 18a82041 OberhachingGermany

AbstractWireless lighting systems based on acceptedopen standards have the potential to bridge thegap between lighting control and buildingautomation. They can collect, use and forwarddata from connected sensors making it usable fora wide variety of applications. The promise ofwireless flexibility is especially attractive in officeenvironments where changing usage modelsbecome increasingly common. Today, theconstruction of shared office spaces hassurpassed that of traditional, fixed-tenantconstructions in many markets. The dynamicusage model of such flexible office spaces placeshigh demands on the flexibility of the underlyingbuilding infrastructure as the boundaries betweenthe different areas – individual offices, sharedoffices, common spaces – are constantlychanging. Simplified speaking, the floor and theceiling are the only constant in such environmentsand infrastructure deployed there is an obviouscandidate to provide automation networkfunctionality. Wireless lighting control systems –where switches and sensors communicated withdedicated controllers connected to a number oflights are increasingly replaced by wirelesslighting systems where the only connection to thelight is the power supply. This naturally creates ahigh density wireless network. Both Zigbee and –increasingly – Bluetooth Mesh based solutionsare positioning themselves to take this crucial roleby advertising their credentials to be thebackbone of building automation.

Wireless communication versus wireless product

Many crucial factors exist for the success of suchlighting as low power wireless network. An oftenoverlooked issue is that most wireless solutions infact require wires. This is both expected and

accepted for the case of wireless lighting wherewiring is required to provide power to the light inthe ceiling. For the case of the connected sensorsand input devices - often located on the walls –there is however limited benefit in wirelesscommunication if the device still requires wires tosupply power. Such devices fail to fully addressthe specific needs of flexible and adaptable officespaces. Only truly wireless devices would do so.

Impact of batteries

Many devices that communicate without wires canbe truly wireless devices. To do so, supplyingpower via batteries seems to be an obviouschoice. The increasing adoption of operatormodels such as Lighting as a Service (LaaS)however shifts operational responsibility from thebuilding owner to the company installing andoperating the lighting network. Total cost ofownership and maintenance cost thereby becomecritical factors for profitability. Maintenance events– especially in conjunction with unplanneddowntime due to battery failure - typically result insignificant cost for maintenance personal andpossibly tenant compensation. Battery-poweredsystems therefore resolve the issue of flexibilitybut have an impact at operational cost.

Truly wireless, truly maintenance-free

Energy harvesting wireless devices generate allenergy required for their operation from theirenvironment. The most obvious example is theenergy harvesting wireless switch that generatesits energy from the kinetic movement of beingpressed. Energy harvesting devices by theirnature do not require maintenance and cantherefore have a positive impact on total cost even



though they are typically more expensive thantheir battery-powered counter parts. In the talk,we will present specific examples how energyharvesting sensors can meet both well-known usecases but also support new applications – such asdemand-based services based on the existinglighting infrastructure.

Author’s CVMatthias KASSNER, DI

Matthias Kassner is in his role as Vice PresidentProduct Marketing at EnOcean GmbH responsiblefor leading the product management team,defining new products and coordinating theproduct marketing activities for the existingportfolio. In this function he directly wasresponsible for defining the new EnOcean 2.4GHz zigbee and Bluetooth product portfolio, theEnOcean LED lighting product family and the nextgeneration of EnOcean radio products for buildingautomation. Prior to joining EnOcean GmbH in2013, Matthias worked for 12 years at TexasInstruments in various positions from WirelessField Application Engineer to Product MarketingManager. Matthias Kassner holds the degree ofmaster in electrical engineering (Diplomingenieur)from Technical University of Ilmenau with aspecialization in high frequency radio electronics.

OrganisationEnOcean

EnOcean - the originator of the patented energyharvesting wireless technology

EnOcean GmbH is the developer of the patentedenergy harvesting wireless technology marketedunder the brands Dolphin and Easyfit.Headquartered in Oberhaching, near Munich, thecompany produces and markets self-poweredwireless sensor solutions for batterylessapplications in the Internet of Things, which areused for building and industrial automation, smarthomes, LED lighting control and outdoorenvironmental monitoring. The EnOcean productsare based on miniaturized energy converters,ultra-low power electronics and robust radiotechnology in open standards like EnOcean,Zigbee and Bluetooth R©. Leading productmanufacturers have been relying on EnOceanwireless modules for their system solutions for the

past 15 years and have installed the products inseveral hundreds of thousands of buildingsaround the world.

The self-powered Internet of Things

The Dolphin modules and Easyfit products usethe energy harvesting principle, in which energy isobtained from the surroundings, to supplyself-powered wireless sensor networks. Themodules are based on miniaturized energyconverters that convert motion, light ortemperature differences into electrical energy.Together with an efficient energy managementsystem, the energy harvesting technologyfacilitates communication betweenmaintenance-free IoT devices based on openwireless standards, such as EnOcean, Zigbeeand Bluetooth. The solutions are used in buildingautomation, smart homes, LED lighting controlsystems as well as industrial applications.

Networked devices form the basis of the Internetof Things. They process large volumes of sensordata to make our everyday lives easier, safer andmore comfortable. EnOcean’s Dolphin modulesare a key component of this extensive network:self-powered, wireless sensors that providereliable sensor data for IoT systems.

The Dolphin portfolio – energy harvesting wirelessmodules for maintenance-free sensor solutionsThe product lines "868 MHz EnOcean" forEurope, "902 MHz EnOcean" for North Americaand "928 MHz EnOcean" for Japan consist ofbatteryless, radio-based switch, sensor andreceiver modules as well as various tools. Theyare based on the EnOcean wireless standardintroduced by the EnOcean Alliance (ISO/IEC14543-3-1X) on the sub 1 GHz band, which hasproven to be a resounding success in buildingautomation and smart homes, due to its highreliability and a radio range of up to 30 meters.Standardized sensor profiles help ensure theinteroperability of more than 1,500 products fromthe EnOcean ecosystem, which makes it possibleto develop interoperable system solutions.

The Dolphin portfolio also includes the "2.4 GHzzigbee" product line with energy harvestingwireless switch modules as well as a wirelessreceiver for zigbee systems in the 2.4 GHz band,which can be used in smart home applications allover the world. Moreover, the "2.4 GHz BLE"portfolio includes a wireless switch module forBluetooth R© systems for modern lighting control.



Radio-based 2.4 GHz Bluetooth R© Low Energy(BLE)-based sensors will follow in 2017.





Best Practice in Wireless LightingControls

Antonio ARTECHEBusiness Development DirectorCasambiAlberga Business Park, Bertel Jungin Aukio 1 E82041 02600 EspooFinland

AbstractAntonio Arteche of Casambi will explain howmany different lighting design projects have beenimplemented using a new advanced wirelesscontrol system. The lighting controls market isexperiencing a boom, thanks to the demand tosave energy, and the exciting new controlcapabilities on offer. But controls can still becomplicated to design, difficult to install andfraught with compatibility issues. In many cases,controls never quite meet the user’s needs orexpectations.

Now, a new generation of wireless controls ischanging all that. It has long been possible to dimand switch lights from portable controllers, buttoday’s controls are wireless from end-to-end, andare compatible with the mobile devices includingsmartphones, tablets and smart watches. Thismakes it possible to bring seamless, user-friendlywireless control to an ever greater variety ofprojects. The rise of Bluetooth Low Energy (BLE)– which comes as standard on most mobiledevices today – provides an ideal basis forwireless lighting control. Casambi’s controlsystem, developed by a Finnish company whosefounders cut their teeth at Nokia, is based onBLE. This presentation will outline the keyadvantages of wireless control, arguing thatwireless represents a paradigm shift in lightingcontrol and will soon be deployed everywhere.The presentation will refer to high-profile real-lifeinternational installations and provide a plannedlive remote-control demonstration.

Easier to set up and use

Wireless light fittings and control devices with

connectivity built-in are easy to install, with noextra wiring, planning or special instructionsrequired. The days of clunky dedicated controllersare gone - user-friendly apps on modern smartdevices mean commissioning and controlling thelights is easy too – and end users can easily makechanges themselves. Commissioning can even bedone remotely.

More cost effective

On top of the energy savings made possible byoccupancy and daylight controls, wirelesssolutions unlock major cost efficiencies byeliminating the need for new cabling or specialisthelp with commissioning.

More flexible

Because no new cabling is needed, wirelesssolutions are particularly attractive for retrofitapplications, sensitive buildings and installationsthat change regularly. But users are now wakingup to the wider benefits for all kinds ofapplications. Wireless controls are simple toreconfigure at any time, so installations can easilybe tweaked as areas are repurposed or businessneeds change. And switches and sensors can beplaced wherever you like, allowing users to makethe most of a space. More robust Today’s wirelesscontrols are robust by design. Casambi, forexample, creates a self-organising andself-healing mesh network of luminaires andcontrol devices. It does not rely on a gateway orrouter to communicate, so there’s no single pointof failure, and your lights do not need to beconnected to the internet. The free Casambi



mobile app is regularly updated, and firmware canbe updated wirelessly.

New capabilities

Wireless controls open up the possibility for moreusers to take advantage of the internet of things(IoT) and to benefit from features such astuneable white lighting and dynamic beamshaping.

Author’s CVAntonio ARTECHE

Antonio Arteche is the Business DevelopmentDirector at Casambi spearheading specificationpromotional activities around the world. Based inMadrid, he also has direct sales responsibility forArgentina, Chile, Spain and Portugal.

With over 25 years’ experience of developingbusiness for leading global brands within thebuilding management systems (BMS) sectorincluding Honeywell and Johnson Controls,Antonio joined Casambi having served asManaging Director of Zumtobel Group Spain andPortugal, focusing on the sales of lighting controlsystems.

OrganisationCasambi

Background

Casambi was founded in summer 2011 by TimoPakkala, CEO, and Elena Lehtimäki, CTO, withthe belief that smartphones and wirelesstechnologies can fundamentally change the waywe interface with everyday objects around us.Timo and Elena have a long history of creatinginnovative software solutions both in Nokia as wellas in start-ups.

Bluetooth Low Energy

The Casambi solution is based on Bluetooth LowEnergy, the state-of-the-art wireless technologyand the only low power wireless technology in allmodern smartphones, tablets and even smartwatches, making it the only mainstream andfuture proof low power radio technology in theworld. Bluetooth Low Energy was developed atNokia Research Center where both Timo and

Elena worked. That’s why Casambi has had theunique advantage in realising the potential ofBluetooth Low Energy early on. Casambi startedthe development of the solution before there wereany Bluetooth Low Energy devices on the market.

Market leader

Today Casambi is the clear leader in modernwireless lighting control solutions based onBluetooth Low Energy. Key aspects of theCasambi solution are great user experience, highperformance and scalability from basic individualfixture controls to industrial scale solutions withcloud based remote control, monitoring and datalogging.

Business Model

Casambi’s business model is to be a technologyand solution provider for our partners. Casambitechnology can be integrated into fixtures,LED-drivers and even with the LED-modules,creating an optimal solution in terms of ease ofinstallation and functionality with minimaladditional hardware and deployment costs.


Latest LED Technology Trends

248 Morning to Evening - Healthy Lightingby Sangwook JUNG, PhD, Seoul Semiconductor

250 Tunable Lighting Systems for Optimal Health in Humans and Plantsby Tom JORY, MBA/EE, Luminus Devices


Morning to Evening - HealthyLighting

Sangwook JUNG, PhDPrincipal Research InvestigatorSeoul SemiconductorClaudius Keller Strasse 3B81669 MunichGermany

AbstractThe light is the most important modulator toregulate human circadian rhythm. The change ofexposure to lighting would affect the intrinsichuman circadian rhythm. The changed circadianrhythm over time can be associated with healthproblem such less sleep or reduced cognitiveperformance. Light detection plays an importantrole in being involved in both image andnon-image forming functions. Among retinalganglion cells, intrinsically photoreceptive retinalganglion cells (ipRGCs), are known to integrateboth photo-entrainment and reflexive responsesto the brightness of light. Specially, it should benoted that ipRGCs play a major role in regulatingcircadian rhythms such as 24-hour light/dark cycleto transduce a light stimulation directly to thesuprachiasmatic nucleus (SCN) of thehypothalamus, the circadian pacemaker of thebrain. The ipRGCs have a specific photoreceptorpigment, which is a melanopsin. The melanopsinwith an unique action spectrum is known to beexcited by mainly the blue part (460nm 500nm)of the visible light (absorption peaks at 480 nm).The control of circadian rhythm through ipRGCshas been shown to be tightly associated withsleep, alertness, and cognitive performance.

It is interesting that the blue light in natural lightspectrum is clearly changing over time for a day.The blue light part begins to increase in themorning right after sunrise, and it goes and keepsits high level for the whole afternoon, thendecreases rapidly in the evening after sunset.Therefore, ipRGCs detect these changes in bluepart over time from natural light, and sendbiological signals to SCN, the circadian

pacemaker of the brain. This signal transductionwould directly associated with the regulation ofcircadian rhythm.

Here, it should be noted that these days most ofpeople spend their time indoor such as office andclassroom during day and night under the artificiallighting. SunLike light is close to the spectrum ofnatural sunlight to the greatest extent. Further, itsblue part is also similar to natural sunlight. Thusthe SunLike lighting system with dynamic andcontinuous CCT simulating a natural light frommorning to evening might contribute to keeping anatural circadian rhythm in human and finallypositive effects on human health.

Author’s CVSangwook JUNG, PhD

2014. 07 – Current Principal ResearchInvestigator, SeoulViosys Co. (SVC), Ansan, S.Korea

2013. 08 – 2014. 06 Research Fellow, SeattleChildrens Hospital Research Institute, Seattle,USA

2005. 09 – 2013. 08 Senior Fellow/ ActingInstructor (Faculty level), Neurology, University ofWashington, Seattle, USA

2000. 08 – 2005. 08 Ph.D. Molecular BiologyProgram, University of Texas at Austin, USA


Latest LED Technology Trends 249


Seoul Semiconductor develops andcommercializes light emitting diodes (LEDs) forautomotive, general illumination, specialty lighting,and backlighting markets. As the fourth-largestLED manufacturer globally, Seoul Semiconductorholds more than 12,000 patents, offers a widerange of technologies, and mass-producesinnovative LED products such as Wicop – asimpler structured package-free LED whichprovides market leading color uniformity, costsavings at the fixture level with high lumen densityand allows design flexibility; Acrich, the world’sfirst high-voltage AC-driven LED technologydeveloped in 2005, includes all AC LED-relatedtechnologies from chip to module and circuitfabrication, as well as multi-junction technology(MJT); and nPola, a new LED product based onGaN-substrate technology that achieves over tentimes the output of conventional LEDs.



Tunable Lighting Systems forOptimal Health in Humans andPlants

Tom JORY, MBA/EEVP of Illumination MarketingLuminus Devices1145 Sonora CourtSunnyvale, CA 94086USA

AbstractOne of the emerging benefits of LED lighting isthat the technology can be leveraged to createtunable light sources, thus enabling luminairemanufacturers to deliver human centric lightingand horticulture lighting systems which can betuned for optimal spectral benefits during a dailyor seasonal cycle. This workshop will demonstratebest practices involved in designing such systemsfrom the optimal choices in LEDs, power supplies,optics, thermal management, control systems,and user interfaces. The workshop is acollaboration involving subject matter experts ineach of these areas. Come and enjoy aninteractive workshop where teams will collaborateon the design of a horticultural lighting systemdelivering the full range of visible wavelengths andeven UV and infrared. Another team will focus onhuman centric lighting, where we’ll go beyondCCT and CRI by creating a luminaire with highand low melanopic over photopic ratios enablinghealth, well-being, alertness, and preparation forsleep. Attendees will be given a brief presentationfrom the subject matter experts, and then teamswill enjoy a plug-and-play workshop where varioussystem options can be assembled and tested in ahands-on environment.

Led by Tom Jory with other partners to beconfirmed, such as Opulent, Cuvee Systems,Casambi, Ledil, and Versalux.

Author’s CVTom JORY, MBA/EE

Tom Jory has 25+ years of experience in the LEDindustry, and he manages the team responsiblefor Luminus’ general illumination business. Hisprior roles have included: VP of Marketing atSwarco Traffic Americas, several key roles atPhilips Lumileds Lighting, VP of Marketing andSales at BridgeLux, and VP of LITE-ON’sOptoelectronics Division in the US. In these roles,Mr. Jory has built a consistent track record ofcreating profitable business and winning majorsupply contracts with large customers. Hereceived his BS in Electrical and ComputerEngineering from UC Santa Barbara his MBAfrom Santa Clara University.


Latest LED Technology Trends 251

OrganisationLuminus Devices

For almost two decades, Luminus has workedwith the community of light to solve its mostchallenging problems. For much of its first decadeLuminus focused on improving energy efficiency,light output, the quality of light, and longevity, anddeveloping new form factors to address the needsin many different application areas includingarchitectural and urban, displays and projection,horticulture and illumination.

Over the last several years, having successfullyaddressed technology challenges, Luminus hasbeen working with lighting designers to make surethat our LED technology can replace CDM,halogen and other conventional technologieswithout sacrificing color quality, center beampunch, sparkle, and dimming capability andquality.

We have worked with farmers and growers torefine our LED technologies so that ourhorticulture LEDs can enable optimum growth andcrop yields for a variety of agricultural productsincluding livestock and plants.

Industrial, medical and entertainment companiesthat are advancing diagnostic, healthcare, infraredand automated systems and have uniquerequirements for both form factor and lightspecifications and Luminus deploys specialistswho understand the challenges and needs ofthese markets so that our products solveproblems.

Our teams are working hand-in-hand with theautomotive, display and projection industries mostinnovative companies to illuminate everythingfrom heads-up displays to projection systems forthe next generation of vehicles and consumertechnologies.

While on first glance, Luminus may look like aLED company, we’re really a company that’sfocused on solving lighting problems inside,outside, for living and for working.


CHAPTER C

PANELS & WORKSHOPS

255 Women in Light – The Digital Era

259 Visual Perception and Health Demonstration

263 Lighting Design in Digital Times

267 LED World Market Leader Showcases the Latest Trends

271 How to Install a Bluetooth Mesh Lighting Control System

275 Light-Guides and OLED Workshop

Women in Light – The Digital Era

256 PANEL: Women in Lighting – The Digital Era, a Step Back a Step Forwardby Mahdis ALIASGARI, Barbara Rodriguez PANDO, LIGHTING DESIGN COLLECTIVE


PANEL: Women in Lighting – TheDigital Era, a Step Back a StepForward

Mahdis ALIASGARI, Barbara Rodriguez PANDOLighting DesignerLIGHTING DESIGN COLLECTIVECalle Invencibles 8, local28019 MadridSpain

AbstractThis panel seeks to explore the means and waysof meaningful lighting design proposals in thedigital era. The topics cover the full designprocess from the very early phases of the designtill the technicalities and realization of a project.

1. What are your incentives when it comes tochoose between an ‘analog’ vs. digitallighting design concept?

2. In case, you need to convince your client,what’s your argument?

3. Have you ever had a project where you werenot convinced a digital approach would be ameaningful solution for a certain project?

4. Can you unfold the conceptual designprocess within your design practice?

5. When it comes to apply new technologies,where is your source of inspiration?

6. What kind of technical challenges have youfaced within the digital lighting proposals?

7. How have you overcome these challenges?8. What is your experience in establishing a

link between digital and physical worlds inyour designs?

9. What would you share with the audienceabout your most valuable learning indesigning digital lighting?

Author’s CVMahdis ALIASGARI

Lighting Designer

Masters degree in Architectural Lighting Design;KTH, Sweden; 2013

Masters degree in Architecture; Art & ArchitectureUniversity, Tehran; 2010

2015 to present: Lighting Design Collective,Madrid, Spain; Lighting Designer/Researcher

2013 - 2015: Interactive Institute of Sweden(RISE), Madrid Spain; Design Researcher

2009-2010: Abmis Pars Architects, Tehran, Iran;Architect

2008-2009: Farbod Consultants, Tehran, Iran;Assistant Architect

2005-2008: DTO, Tehran, Iran; ResearchAssistant

Barbara Rodriguez PANDO

Lighting Designer

Masters degree in Architectural Lighting Design;Technical University, Madrid; 2013


Women in Light – The Digital Era 257

Masters degree in Architecture; TechnicalUniversity, Madrid; 2010

2014 to present: Lighting Design Collective,Madrid, Spain; Senior Lighting Designer

2013 - 2014: Vbo Spagna, Madrid Spain; LightingDesigner

2013: Amid Cero9, Madrid, Spain; Architect

2010-2012: Suma Arquitectura, Madrid, Spain;Assistant Architect

2005: Solid Arquitectura, Madrid, Spain; ArchitectInternship

OrganisationLIGHTING DESIGN COLLECTIVE

Lighting Design Collective (LDC) specializes incustomized architectural lighting solutions andapplications with a uniquely integrated portfoliocovering cutting-edge services such as digitalcontent creation, software development andinnovative design strategies.

We create imaginative, state-of-the-art lightingschemes for architecture and built environmentsusing design research based on high techapplications, digital content and artistic assets.Our multicultural team of lighting designers,software coders and digital artists has createdworld-class projects in more than 20 countries.Our professional and artistic experience coverscultural, hospitality, retail, office, and mixed-useschemes as well as residential, landscape andinfrastructure developments. As a complementaryservice, we design contemporary luminaires thatcapture the essence of our design philosophy.Based in three studios in Europe, we operateglobally with a network of collaborators stretchingfrom Madrid to Miami, London to Mexico andHong Kong to Helsinki.

LIGHTING DESIGN: We strive to achieve asophisticated dialogue between light, space andtime. We combine observation and study ofnatural light with cutting-edge insights into thelatest technical possibilities of artificial lighting.Our work showcases how light can take on amultitude of roles in architecture, builtenvironments and cities through innovativecombinations of art and commerce.

This ranges from improving functionality andaiding orientation for increased usability, to theexperiential reinvention of visual space forrevenue, and from the improved recall to strategicvalue of creating identity.

DIGITAL CONTENT: Media, screens andprojections are the facades of this century. Ourdedicated visual professionals, software codersand artists have the talent and flair to meet projectneeds from custom software development togenerative visual code, from interactive lightinstallations to brand-related content libraries anddigital art collections. We create time-baseddesign interventions through skillful integrationand sophisticated scenography that only trulymultidisciplinary teams can achieve. We havewritten over 20 custom software packages forinteractive lighting control.

LIGHT ART: Rooted in a fascination with naturallight in movement and the infinite ways lightrelates to time, space and context, our designwork extends into explorations of lighting as aform of art.

Our site-specific light art has been recognized bynumerous international awards and included inpublic, private and museum collections.

RESEARCH: We engage in international researchand professional debate about the role of lightingdesign, digital content and light-art in builtenvironments. We lead our own research programbased on yearly learning cycles combininghumanities, high tech and designexperimentation. This varies from multidisciplinarydialogs with thought leaders to the prototyping ofadvanced solutions that embody our future visionsin our customer projects.

www.ldcol.com


Visual Perception and Health Demonstration

260 WORKSHOP: LED Lighting Concepts: Visual Perception and Health – Demonstrationsby Wilfried POHL, Mag., Bartenbach


WORKSHOP: LED LightingConcepts: Visual Perception andHealth – Demonstrations

Wilfried POHL, Mag.Head of R&DBartenbachRinner Strasse 14A- 6071 AldransAustria

Co-Author(s): Siegmund Staggl

AbstractWorkshop Description

The knowledge about light impacts on human andabout human needs has increased significantlyover the last two decades, but recommendationsand guidelines for lighting design are missing. Inthis workshop practical recommendations forplanners and the most important featuresregarding visual perception and non-visual effectswhich have to be respected for LED applicationsare demonstrated. Answers to the questions“which lighting designs represent HCL lightingsolutions today” should be given. In a 1:1demo-booth different lighting scenarios withdiffuse panels, accent light, direct (task) light andwallwashers can be shown. The retinalillumination (one of the parameters for non-visuallight effects) can be measured and compared(e.g. the difference between vertical illuminationat eye level and retinal illumination can bedemonstrated).

Other photometric parameters and their influenceon humans are also considered:

- Glare, discomfort, light pressure

- Spectral quality (color rendering, fidelity, andpreference; whiteness, color mixing white – whiteand black body line, etc.)

- Light directness and shadowness (radiation field)

- Flicker and stroboscopic effects

Recommendations will be given to quantify theseeffects.

Lessons Learned

Awareness for the critical features of LEDapplications will be increased, and (some new)quality criteria (measures) with value ranges willbe given. Proposals for solutions will be made.


Visual Perception and Health Demonstration 261

Author’s CVWilfried POHL, Mag.

Studied mathematics and physics, started 1985 atBartenbach, since 1998 Member of ManagingBoard and Director Research, dealing withartificial lighting, daylighting and building physics,visual perception and light and health. Leader ofvarious international planning and R&D-projectsin these fields. Lecturer at different universities,university teaching position at the LightingAcademy Bartenbach (a branch of the Universityof Innsbruck), several scientific papers andpresentations, participation in internationaladvisory boards.

Papers/Presentations: • Spectral Quality -Einfluss des Spektrums auf den Menschen;LICHT 2014, Den Haag • From Digital Lighting toSmart Lighting Smart Lighting; Smart LightingConference, Barcelona 2014 • Lighting with LEDs– More than just Illuminating Objects; LpR50, July2015 • Licht und Technologie: Licht im Wandel;Architekturjournal wettbewerbe, Juli 2015 • Lightand Health – newest research findings and itsapplications; LpS 2016 Bregenz •Energieeffizienz und Helligkeitseindruck imVerkauf; Licht 2016 Karlsruhe • BiodynamischeBeleuchtung – Anwendungen undwissenschaftlicher Hintergrund; Licht 2016Karlsruhe • HCL – Just a phrase?; Tagung SmartLighting 2017, Hamburg • New daylight solutionsfor energy and health; Tagung Luxeuropa 2017Ljubljana • LED-Beleuchtung – Demonstrationder Chancen und Risiken; Kongress lightingtechnology, Essen 2017 • Trends in Lighting –Demo Quality; Kongress LpS 2017 Bregenz




Lighting Design in Digital Times

264 WORKSHOP: Evolution of Lighting Design Processes in Digital Timesby Holger LEIBMANN, DI Architect, Zumtobel


WORKSHOP: Evolution of LightingDesign Processes in Digital Times

Holger LEIBMANN, DI ArchitectDI ArchitectZumtobelSchweizerstrasse 30A-6850 DornbirnAustria


Due to the digitalization of building design process3D geometry is available for an increasing numberof projects. The purpose of this geometry is notpredominantly the visualization of spaces but forthe generation of 3Dimensional Database(Building Information Modelling). Neverthelessthis information is also used to evaluate thequality of the spaces.

There are software solutions to visualize BIMmodels in real time and even allow thepresentation with high end VR Devices, but theydo focus on the presentation of the architecturalspaces and are optimized for visual quality ratherthan for the evaluation of the lighting concept.

HILITE is a lighting simulation technology thatwas developed in a research project together withVRVIS in Vienna and it offers a simulationtechnology with the main focus on lightingsimulation while still using elements that arebases on visualization technology initiallydeveloped for video games.

It is possible to place and manipulate luminaires,objects and materials whilst seeing instantly howthis affects the lighting situation in the space. Dueto the instant feedback, the lighting designprocess becomes less iterative but more intuitive.

We developed a workflow that allows the efficientgeneration of 360 degree panorama images fordifferent locations and for different lightingscenarios and to combine the different panoramasinto a virtual tour. The result can be uploaded to a

web server and therefore viewed via webbrowsers but of course the tours are optimized formobile devices that can also be inserted intobasic VR devices (Cardboard Type).

In the workshop the participants will have theopportunity to use HILITE on training laptops andto create their own lighting solutions for a smalllighting project. Once the lighting design isfinished they can generate a 360 degreepanorama tour which we will make availableonline so that it can be viewed on mobile devicesafter scanning a QR code. Basic Cardboarddevices will also be available for the participants.

Due to the interactive nature of the workshop andthe necessary hardware the maximum number ofparticipants should be limited to 15 – 20 who willwork together in groups of 2-3 participants.

Author’s CVHolger LEIBMANN, DI Architect

Holger Leibmann studied architecture at theTechnical University Darmstadt in Germany until2005 subsequently working as an architect inLondon and Berlin. He joined Zumtobel Group in2011 focusing on explaining the advantages ofgood lighting solutions. This happens on the onehand supporting lighting projects and on the otherhand supporting the development and training oflighting design tools and methods.


Lighting Design in Digital Times 265

OrganisationZumtobel

Zumtobel Group Services (ZGS) offers a serviceportfolio for the entire lighting sector. ZGS bringsall the services of the Zumtobel Group togetherunder one roof, helping us to redefine theconnected lighting and services market. TheZumtobel Group is an international lighting groupand a leading player in the lighting industry. Withits internationally established Thorn, Tridonic andZumtobel brands, as well as acdc and ZumtobelGroup Services, the Zumtobel Group offerscustomers all around the world a full range ofproducts and services.


LED World Market Leader Showcases the Latest Trends

268 WORKSHOP: Experience How New LED Technologies Raise the Bar in Human Centric Lightingby Giovanni Vecchio, Nichia


WORKSHOP: Experience HowNew LED Technologies Raise theBar in Human Centric Lighting

Giovanni VecchioHead of Sales & MarketingNichiaWesterbachstrasse 2861476 KronbergGermany


In this workshop the audience will experience lightbased on optimized spectrum and other LEDinnovation. This interactive session lets theaudience “see, touch and feel” the newtechnologies discussed in the LpS lectures; “LEDSpectrum Optimization for Improvement ofHuman Performances and PsychophysiologicalResponses” and “LED Innovations for theImprovement of HCL Luminaires”.

Author’s CVGiovanni Vecchio

Giovanni Vecchio is Head of Sales and Marketingfor General Lighting, Nichia Chemical EuropeGmbH. Mr. Giovanni Vecchio has 20 years’experience in the semiconductor industry and hasbeen with Nichia for 7 years. He took the positionof Head of Sales and Marketing for GeneralLighting, in March 2018.

OrganisationNichia

Nichia Corporation (Nichia Kagaku KogyoKabushiki-gaisha) is a Japanese chemicalengineering and manufacturing companyheadquartered in Anan, Japan with globalsubsidiaries. It specializes in the manufacturingand distribution of phosphors, includinglight-emitting diodes (LEDs), laser diodes, batterymaterials, and calcium chloride. The NichiaCorporation comprises two divisions — Division 1,responsible for phosphors and other chemicals,and Division 2, responsible for LEDs. In the fieldof phosphors the company has 50% of theJapanese market and 25% of the world market.Nichia is the world’s largest supplier of LEDs. Itdesigns, manufactures, and markets LEDs fordisplay, LCD backlighting, automotive and generallighting applications with the many different ledsacross the entire visible spectrum. Nichia’sinvention and development of white LEDs havespanned several accomplishments throughout thehistory of the company.


LED World Market Leader Showcases the Latest Trends 269


How to Install a Bluetooth Mesh Lighting Control System

272 WORKSHOP: Setting up a Robust Lighting Control System with Bluetooth Mesh - FromCommissioning Basics to Troubleshootingby Michal HOBOT, MSc, Silvair


WORKSHOP: Setting up a RobustLighting Control System withBluetooth Mesh - FromCommissioning Basics toTroubleshooting

Michal HOBOT, MScVP of ProductSilvairJasnogorska 44Krakow 31-358Poland


Since its adoption in 2017, the Bluetooth meshstandard continues to gain momentum inprofessional lighting applications. Gearing up for awidespread rollout of Bluetooth mesh lightingnetworks, we will have a hands-on workshop onsetting up such wireless lighting control systems.From commissiong basics, through best practices,to troubleshooting - we will cover all relevantareas to make sure attendees leave with practicalknowledge that can be applied to real-worldexperiences.

Lessons learned:

1. What components are needed to set up aBluetooth mesh lighting network? What arethe possible integration options for luminairemanufacturers?

2. How to commission a mesh lightingnetwork? What tools are needed? What theentire process looks like step-by-step?

3. How to add a gateway to a Bluetooth meshnetwork? What maintenance anddiagnostics data can be obtained through

it? How to manage that data to generatevalue?

4. What are the lessons learned from the firstreal-life implementations at office,warehouse and school environments?

5. Bluetooth mesh troubleshooting: how toavoid potential difficulties and how tooptimize network performance inradio-dense environments?

Author’s CVMichal HOBOT, MSc

VP of Product at Silvair, member of the MeshWorking Group at Bluetooth SIG.At Silvair, Michalhas been defining smart lighting controlplatform-as-a-service based on the interoperableBluetooth mesh networking standard. He hasbeen involved in a number of product and projectmanagement roles for both cloud and mobilesoftware.


How to Install a Bluetooth Mesh Lighting Control System 273

OrganisationSilvair

Silvair is an American company with Polish rootsthat builds software solutions for the Internet ofThings (IoT). Operating on the global market,Silvair is pursuing its strategic goal of becoming aleading supplier of modern technological tools forIoT applications. Currently, the company isfocusing on developing a technology for lightingmanufacturers and providers of intelligent buildingmanagement systems. It offers the Silvair LightingFirmware, as well as digital tools based on theBluetooth mesh standard that allow for buildingthe Silvair Platform.

Silvair’s product range includes firmware for smartlighting components manufactured by third-partycompanies. In addition, the company providestools for configuring, controlling and managing thelighting infrastructure, as well as tools foranalyzing and using the data collected by sensorsinstalled as part of lighting systems: SilvairFirmware is software that can be installed bylighting manufacturers in their components. Itallows devices to wirelessly communicate witheach other. This in turn enables autonomouscontrol over the intensity and color temperature oflight, while also making it possible to collect dataon the ways the space and devices themselvesare used. Silvair’s firmware is offered tomanufacturers of lighting components, includingdrivers, sensors, fixture controllers, switches, etc.platform developed by the company. It includesdigital tools for commissioning, configuring andmanaging smart lighting networks, as well as aninfrastructure enabling the company to provide arange of innovative services, e.g. the ones relatedto property management. These services will beassociated with the collection, processing andvisualization of data generated by sensor-drivensmart lighting networks. They will be providedremotely through a dedicated website andcloud-based solutions.

Silvair Platform is a technology and serviceplatform developed by the company. It includesdigital tools for commissioning, configuring andmanaging smart lighting networks, as well as aninfrastructure enabling the company to provide arange of innovative services, e.g. the ones relatedto property management. These services will beassociated with the collection, processing andvisualization of data generated by sensor-drivensmart lighting networks. They will be provided

remotely through a dedicated website andcloud-based solutions.


Light-Guides and OLED Workshop

276 WORKSHOP: Next Generation Lightguides, OLED and R2R Manufacturingby Jose POZO, PhD, EPIC – European Photonics Industry Consortium


WORKSHOP: Next GenerationLightguides, OLED and R2RManufacturing

Jose POZO, PhDDirector of Technology and InnovationEPIC – European Photonics Industry Consortium17 Rue Hamelin75016 ParisFrance


This meeting addresses both manufacturingachievements around roll-to-roll production offlexible optoelectronic products, such as OLEDsfor lighting and displays, next generation lightguides and light panels. Until very recently, theseapplications have had as common drivers thattheir markets were very large (requiring severalmillions of square meter/year) and that theyneeded to be produced very cost-efficiently.However, new market demands go beyond thehigh luminance uniformity, and claim customizedfeatures such as colors, shapes, lightweight,wearability,. . . . The purpose of this workshop is tostudy what are the key markets and applicationsthat demand R2R and R2S manufacturing forcustomized lighting solutions.

Author’s CVJose POZO, PhD

Dr. Jose Pozo is Director of Technology andInnovation at EPIC (European Photonics IndustryConsortium). As EPIC’s CTO, he represents 350companies active in the field of Photonics. His jobconsists on actively engaging with them andprovide them with tools to strengthen theirposition in the supply chain; such tools are theorganization of 20 technology workshops peryear, provision of market intelligence and findingB2B leads. He has the vision that the future ofoptoelectronic manufacturing can take place inEurope to a large extent, and as part of that visionhe is actively involved in the EU-funded pilot lines.He has 20 years’ background in photonicstechnology, market knowledge, and a largenetwork within the industrial and academicphotonics landscape. Dr. Pozo holds a Ph.D. inelectrical engineering from the University ofBristol, U.K., and a M.Sc. and B.Eng. in telecomengineering from UPNA (Spain) / VUB (Belgium).In addition, Dr. Jose Pozo has worked aspost-doctoral researcher at the EindhovenUniversity of Technology (The Netherlands), EUproposal coordinator at TNO (The Netherlands),and Sr. Photonics Technology Consultant at PNOConsultants.


Light-Guides and OLED Workshop 277

OrganisationEPIC – European Photonics IndustryConsortium

EPIC is the industry association that promotes thesustainable development of organisations workingin the field of photonics in Europe.

Our members encompass the entire value chainfrom LED lighting, Photovoltaic solar energy,Photonics Integrated Circuits, Opticalcomponents, Lasers, Sensors, Imaging, Displays,Projectors, Optic fiber, and other photonic relatedtechnologies.


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