leds201309--dl.pdf

+SIL 2013Conference report and market projections P.26 & P.35

Venting luminairesEqualization boosts reliability P.43

ThermalFocus on SIL products P.55

LEDsmagazine.com

MARCH 2013

TECHNOLOGY AND APPLICATIONS OF LIGHT EMITTING DIODES

Dynamic SSL presentationcelebrates the Bay Bridge P.33

Welcome to the Digital Edition of

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9 Easily browse all BACK ISSUES

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1 2 3 4 5 6

StdTransition_Template.indd 1 3/19/13 5:34 PM

+Conference reportThe LED Show P.27

Thermal

materials

AlN LED packages P.39

Automotive

LEDs

Cabin and exterior

lighting P.44

LEDsmagazine.com

SEPTEMBER 2013

TECHNOLOGY AND APPLICATIONS OF LIGHT EMITTING DIODES

Hollywood LightsSting set gets LED

makeover P.9

See pg. 3133 for more information

1309leds_C1 1 8/21/13 11:44 AM

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1309leds_2 2 8/21/13 11:55 AM

LEDsmagazine.com SEPTEMBER 2013 3

2013features

27 CONFERENCE REPORTPackaged LED discussion provides rousing start

at The LED Show

Maury Wright

31 CONFERENCE PREVIEWSIL Europe addresses the development of a

new lighting ecosystem

Bob Steele, Strategies Unlimited

35 STANDARDSIES moves to establish LED light-source ray

file standards

Jianzhong Jiao, Osram Opto Semiconductors

39 PACKAGINGCost-reduced AlN delivers thermals needed in

HB LED packages

Jonathan Harris, CMC Laboratories, Inc.

44 APPLICATIONSEurope adds driving force to LED market

Caroline Hayes

51 TESTINGLED system evaluation yields quality analysis

Richie Richards, Cree

59 DESIGN FORUMOptical touchscreens benefit from compact,

high-power infrared LEDs

Harry Feltges, Osram Opto Semiconductors

Cover Story

A number of LEDtronics lighting products

have enhanced the 97-year-old Santa

Monica Pier and Boardwalk, maintaining

the historical look of landmarks such

as the Looff Hippodrome (shown) while

modernizing in terms of energy efficiency,

cost reductions, and improved safety with

less light pollution for visitors (see page 9).

september

columns/departments

4 COMMENTARY Maury Wright

Electronics and lighting industries try to get in sync

9 NEWS+ANALYSIS

Iconic Santa Monica Pier gets LED facelift

Philips adds members to Hue family

SSL streetlights drop below $100

Seoul supplies China streetlights

Packaged LEDs: Seoul, Toshiba, Osram, Bridgelux, Cree, and Plessey

21 FUNDING + PROGRAMS

Gateway demonstration for MSSLC reveals LED advantages over HPS

DOE revises L Prize rules for PAR38 lamps

EPA proposes change to Energy Star verification

DOE publishes Snapshot Report on outdoor SSL

EPA marches toward finalizing Energy Star Lamps spec

DOE debunks claims of LED light hazard

DOE documents residential energy use for lighting

ISSUE 63

1309leds_3 3 8/21/13 11:55 AM

4 SEPTEMBER 2013 LEDsmagazine.com

commentary

The LED Show is ongoing in Las Vegas as I write this, and a session entitled The psychology of lighting prompted this col-

umn. Specifically, Kevin Willmorth, owner

of lighting consultancy Lumenique, made

some very interesting and humorous obser-

vations about the solid-state lighting (SSL)

industry. Much of his talk was focused on

the different cultures of the electronics and

lighting industries and the need for each to

better understand the other.

While Willmorth comes from the lighting

industry, he was a very early adopter of LEDs

in lighting applications. He was equally criti-

cal and appreciative of aspects of both of the

industries. But he said that there remains a

fundamental disconnect between the 9- to

18-month development cycle for lighting

products and what he described as a two-

month cycle for LEDs.

In describing the two mindsets, Will-

morth said, The lighting industry makes a

million different things one time. In con-

trast, he said the electronics industry wants

to make a million of one thing. An exagger-

ation for sure, but still his point hits home.

The transition to LEDs has clearly been

painful for the lighting industry. Early on,

the LED manufacturers over-promised

in terms of performance and lifetime and

under-delivered. Willmorth said, Some-

where around 2011 the products started per-

forming as promised.

Today, the LED industry regularly over-

delivers in terms of lumen output and effi-

cacy. That would on the surface seem to be

a good thing. But Willmorth says that it

can be a problem for lighting manufactur-

ers and designers who work based on a pub-

lished spec only to find out that the capa-

bilities of the light source have changed by

the time a product ships or an installation

is complete.

The electronics industry has also brought

along an overload of new standards that,

while in theory are both needed and good,

have overwhelmed the lighting industry.

Willmorth showed a complicated chart with

a complex stack of optical, electronic, safety,

form factor, networking, and other stan-

dards that he calls the SSL Dog Pile 2013

and said, This is suffocating.

He still reserved plenty of criticism for

the lighting industry, and especially its

affinity for the Edison socket and light

bulb. He said, We should have made the

Edison socket illegal rather than the incan-

descent lamp, referring to energy-effi-

ciency regulations on lightbulbs.

Willmorth described the Edison base as

dangerous and not capable itself of pass-

ing UL safety standards, whereas products

that are installed in the Edison socket are

held to stricter standards. He said Califor-

nia Title 24 is step in the right direction,

requiring GU10 and GU24 lamps in new

homes and offices.

The LED component industry has played

a part in the longevity of the Edison socket

as well. Willmorth roasted the US Depart-

ment of Energy L Prize for its part in the

process. He said, The real winner is the

Edison socket surviving another round of

advancing technology.

But the lighting industry is clinging to

the established technology as well. Will-

morth clearly thinks that retrofit lamps are

holding back real advancements in energy

savings, lighting design, and better light-

ing experiences for people. He concludes,

"The incandescent lamp is dead. Lets get

over it already.

Maury Wright, EDITOR

[email protected]

Electronics and lighting industries try to get in sync

SENIOR VICE PRESIDENT Christine Shaw

& PUBLISHING DIRECTOR [email protected]

EDITOR Maury Wright [email protected]

ASSOCIATE EDITOR Carrie Meadows

[email protected]

CONTRIBUTING EDITOR Julie MacShane

[email protected]

CONTRIBUTING EDITOR Caroline Hayes

[email protected]

ART DIRECTOR Kelli Mylchreest

PRODUCTION DIRECTOR Mari Rodriguez

SENIOR ILLUSTRATOR Christopher Hipp

AUDIENCE DEVELOPMENT Debbie Bouley

EDITORIAL OFFICES PennWell Corporation,

LEDs Magazine

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1309leds_4 4 8/21/13 11:55 AM

1309leds_5 5 8/21/13 11:55 AM


FEATURED events

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ADVERTISERS indexArgie Charmilles Management SA ................11

Ask SRL ......................................................34

Autec Power Systems ..................................33

Bayer Material Science, LLC ........................25

Cooledge Lighting .......................................17

Cree, Inc. ..................................................CV4

E-Lite OptoTech Co., Ltd. .............................41

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Edison Opto Corporation .............................23

Epistar ..........................................................1

Guangzhou Hongli

Opto-Electronic Co., Ltd ............................32

Hangzhou Everfine Photo-E-Info Co., Ltd. .......7

Helio Optoelectronics Corp. .........................56

Henkel ........................................................13

HKTDC Hong Kong International

Lighting Fair (Autumn Edition) ....................57

Indium Corporation .....................................40

Instruments Systems GmbH .......................20

International LED Core

Technology Seminar .................................50

Inventronics (Hangzhou), Inc. .......................47

Lambda Research .......................................14

Ledlink Optics Inc. .......................................29

Lextar Electronics Corp. ..............................49

Linear Technology .....................................CV3

Matrix Lighting Limited, Hong Kong ...........CV2

MBN GmbH .................................................18

Metal Coaters .............................................15

NMB Technologies Corporation ...................42

Optronic Laboratories, Inc. ..........................62

Orb Optronix................................................60

SIL Europe ..................................................54

SIL Japan ....................................................63

Philips Lumileds ............................................2

Proto Labs, Inc. ...........................................43

Recom Power Inc. ................................ 53, 55

Seoul Semiconductor Co., Ltd. ....................30

Shanxi Guangyu LED Lighting Co. Ltd. .........16

Shenzhen Crystal River Optoelectronic

Technologies Co., Ltd. ..............................12

Shenzhen OKT Electronics &

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Sichuan Jiuzhou Electric Group Co., Ltd. ......38

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The Korean Consulate General ....................36

Thomas Research Products ........................58

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+LEDsmagazine.com SEPTEMBER 2013 9

viewsnews

The 97-year-old Santa Monica Pier and Boardwalk, on the

Pacific coast in Santa Monica, California near Los Angeles,

has installed LED lighting on the outside of some struc-

tures and in post-top lighting along the pier and board-

walk. LEDtronics reports that the project is already deliver-

ing 30% energy savings and will

also reduce maintenance costs

and provide better lighting for

safety with less light pollution.

The project entailed a num-

ber of LEDtronics solid-state

lighting (SSL) products. For

example, 1.3W S14 retrof it

lamps were installed in place

of 11W incandescent lamps in

multiple layers ringing architec-

tural elements of the Looff Hip-

podrome. Named for designer

Charles Looff, the Hippodrome

houses the iconic wooden car-

ousel among other things.

Now that the necklace lights

on the carousel building have been replaced with LEDs,

there are no gaps, they give off a nice, bright glow, and

the colors really bring out the colors on the building,

said Jim Harris, deputy director of the Santa Monica Pier

Restoration Corporation. We wont need to

OUTDOOR LIGHTING

Iconic Santa Monica Pier gets LED facelift

COLOR TUNING

Philips adds members to Hue familyPhilips Lighting has introduced new mem-

bers of its LED-based, color-tunable Hue

lighting family with what the company

is now calling Friends of Hue products.

Philips also struck a recent deal with

Disney to sell Hue-based lamps for chil-

dren in combination with entertainment

products such as interactive story books.

The first two Friends of Hue are a 2m

LightStrip that can be installed under

furniture or in architectural room features,

and the LivingColors Bloom fixture (both

shown here) that sits on a table or other

f lat surface and projects much like a

f loodlight on an architectural faade

(illuminationinfocus.com/news/4/8/6).

The new Friends of Hue products are

designed to work seamlessly with the Zig-

Bee bridge supplied in the Hue Starter

Kit, and with Philips and third-party

applications developed for Apple and

Android smartphones. The new products

would be configured just as if they were

yet another Hue lamp connected to the

local ZigBee network.

Adding color to a home doesnt need to

just be about art and paint; the page 12

page 10

1309leds_9 9 8/21/13 11:55 AM


news+views

change these bulbs for

years, and the LED lamps added to the rest

area and boardwalk outside of the building

increase security and provide a well-lit area

for people to relax and enjoy the sights and

sounds of the pier.

The savings with the Hippodrome lights is

near 80%, although some of the other parts

of the retrofit delivered lesser savings. How-

ever, the pier and boardwalk upgrade comes

with much better lighting and better light

control as evidenced by Harris statement.

LEDtronics supplied two different pen-

dant-style retrofit luminaires that are

suspended on decorative posts. For seat-

ing areas, 20W LEDs replace 50W and

70W metal halide (MH) and high-pressure

sodium (HPS) lamps. Along the walkways,

27W LEDs replaced 150W MH lamps. The

project also included some LED A-lamps

installed in inaccessible locations as bea-

cons around the perimeter of the pier.

With the new LED lamps in place, main-

tenance is minimal, and we have already

reduced energy consumption by more

than 30%, said Matt Henigan, energy effi-

ciency engineer with the City of Santa Mon-

ica, Office of Sustainability and the Envi-

ronment. And because the LED lighting is

directional, it improves safety and enhances

the piers appearance without causing light

pollution for local residents.

MORE: illuminationinfocus.com/news/4/7/6

OUTDOOR LIGHTING

Seoul supplies China streetlights

Seoul Semiconductor has announced that

streetlights based on the companys AC-LED

Acrich2 modules have been successfully

installed on Weiyang Road in the Jiangsu

Province in China, saving 55% in energy rela-

tive to the typical high-pressure sodium (HPS)

lights used in such applications. The project

follows on the heels of a project in Yangzhou

City that was completed back in April.

The LED streetlights use the Acrich2 4040

LEDs that are based on what Seoul calls

multi-junction technology (MJT). Essen-

tially, MJT equates to what the industry at

large calls high-voltage LEDs that connect

multiple emitters in series within a sin-

gle package, thereby simplifying the driver

design. Seouls 4040 has a 64V forward volt-

age and is driven typically at 20 mA.

OUTDOOR PRODUCTS

SSL streetlights drop below $100While part of Seouls value proposition is

low cost (see below), AC-driver technol-

ogy clearly isnt the only avenue toward

that result. Cree took the unusual tac-

tic of leading a recent LED

streetlight announcement

with product pricing, with

the news being a product for

residential streets that broke

the $100 level.

The city of Raleigh, North

Carolina, adjacent to Crees

home base in Durham, has

been an early adopter of SSL

technology, especially in

outdoor applications. This

breakthrough technology

can change the total cost-of-

ownership equation, encouraging munic-

ipalities to transition sooner to LED with

less risk, and redirect resources to other

important community needs, said Dan

Howe, assistant city manager of Raleigh.

Streetlighting is our citys largest single

energy-related cost, and the XSPR street-

light appears to dramatically change the

economics of LED relative to traditional

lighting technologies.

The new XSPR series can deliver 2529

3819 lm and Cree says they achieve a typi-

cal 63% reduction in energy usage, replac-

ing 100W legacy lights. Cree says the

payback is one year.


Seoul takes the high-voltage approach a

step further with its Acrich AC-driver tech-

nology that has now been completely inte-

grated in a single IC that we covered back

in March (ledsmagazine.com/news/10/3/16).

The company says that you can replace the

typical AC/DC modular driver used in an

LED streetlight with the IC mounted on the

LED circuit board. Presumably, that config-

uration is representative of the lights used

in the China projects.

Seoul said the Acrich2 modules eliminate

a 2- to 4-kg driver module while also offering

inherent dimming support. The company

also stated that the space saved due to the

AC technology was utilized to add surge pro-

tection to handle over-current and -voltage

conditions, as well as lightning

strikes, while also enabling the

use of a smaller enclosure.

Acrich2 AC LED modules

are the optimized solution for

high reliability and remove the

difficulties of installing dim-

ming control systems using

drivers/ballasts for existing DC

LEDs, said Marten Willemsen,

vice president of marketing for

Seoul Semiconductor. Due to

the competitive price, there will

be continued success cases

These successful cases in China will lead to

more widespread adoption of Seoul Semicon-

ductor solutions in the global outdoor light-

ing market.

MORE: ledsmagazine.com/news/10/8/10

Pier from page 9

1309leds_10 10 8/21/13 11:55 AM

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news+views

f lexibility of smart LED

technology means light can play just as big

a part in creating a unique atmosphere in

the home that is f lexible and personalized

to you, and this is just the beginning, said

Sridhar Kumaraswamy, general manager of

Philips Consumer Luminaires EMEA. At

Philips our core focus has always been to

improve peoples lives through meaningful

innovation, and we believe we have done just

that by expanding the infinite possibilities

of hue through Friends of Hue.

Both new products can produce up to

16 million colors. The products can be

dimmed, tuned for color, and switched

on and off locally and remotely. The light-

ing products are already available in some

stores. Philips has repeatedly added either

new technology elements or products to the

Hue family this year. For example, back in

May the company enhanced the Hue app

(illuminationinfocus.com/news/4/5/9).

Now a partnership with Disney will bring

the technology to kids. The partners will

offer tunable Disney-character-themed

table lamps along with control apps that

can enhance reading activities, provide

soothing night-time environments, and

gently wake kids from sleep, among many

other potential uses.

The Philips Disney portfolio is due from

both companies existing retail channels

starting in September for the US and Europe,

and later in the year for Canada and Asia.

Apparently, the products will use Hue-like

lamps, although the partners did not detail

the technology.

The companies identified a number of

products in the portfolio, starting with the

StoryLight and Mickey starter kit. The kit

includes a table lamp with classic Mickey

Mouse shape that houses what appears to

be a Hue lamp. An app for an iPad or e-book

reader will dynamically change the lighting

as the child reads classic Disney stories.

We are proud to work with Philips to

help create positive and comforting read-

ing and bedtime environments for families,

said Simon Philips, executive vice president

and general manager at Disney Consumer

Products. This product range is a perfect

illustration of how Disney storytelling can

extend into childrens bedrooms through an

innovative and compelling consumer prod-

uct offering.

The portfolio will also include bedside

table lamps available in Mickey and Min-

nie Mouse versions that the companies call

SleepTime. The lamps are designed to pro-

vide a soothing environment during bedtime

and also to gently awaken kids in the morn-

ing. There will also be LED Candles prod-

ucts that mimic a warm flickering candle

and LivingColors products that produce a

dynamic light show.


Hue from page 9

1309leds_12 12 8/21/13 11:55 AM

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Except as otherwise noted, all marks used are trademarks and/or registered trademarks of Henkel and/or its afliates in the U.S. and elsewhere. = registered in the U.S. Patent and Trademark Ofce. 2013 Henkel Corporation. All rights reserved. 10799 (06/13)

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PACKAGED LEDS

Seoul mid-power LEDs attack efficacy and SSL cost

Seoul Semiconductor has announced

upgrades to its mid-power LED families

both pushing efficacy up and increasing

drive current to high-power LED levels. The

company believes that maximizing efficacy

and lumens per dollar (lm/$) are the key ave-

nues through which an LED vendor can help

broaden the deployment of SSL technology.

The new plastic-packaged 5630C LED

can deliver efficacy up to 180 lm/W. There

has been a race of late to new efficacy levels

in the mid-power space. Just before the

Lightfair International (LFI) show back

in April, Samsung announced 160-lm/W

efficacy (ledsmagazine.com/news/10/3/13)

in mid-power LEDs, claiming that as an

industry high. Then at LFI, LG Innotek

announced 170-lm/W efficacy in similar

products (ledsmagazine.com/news/10/5/4).

The Seoul LEDs deliver 180 lm/W efficacy

at 60mA of drive current. The touted maxi-

mum efficacy is for a 5000K LED. Maximum

current is 160 mA for 0.5W operation. The

company targets applications including ret-

rofit lamps and tubes, and panel-based fix-

tures with the 5630 LED family.

The company also said that it now offers

an LED in the 3030 plastic package that can

be driven at 1W. That would place the LED in

competition at the low end of the high-power

LED segment. Seoul said that getting the 3030

LEDs to that power level could reduce solid-

state lighting (SSL) product costs by 50%.


Mid-power GaN-on-Si LEDs

Toshiba has announced two mid-power

white LED families that are being manu-

factured using gallium-nitride-on-silicon

(GaN-on-Si) technology. The company said

that the LEDs offered in 33-mm 3030 and

31.4-mm 3014 packages specifically target

indoor general lighting applications retro-

fit lamps and tubes to linear/planar fixtures.

Both of the new LED families are avail-

able across a range of 2700K to 6500K CCTs

with a minimum CRI of 80. The 5000K LEDs

also can be specified in a 70 CRI version.

The TL3GA series (3030 package) can be

operated over a range of 0.60.9W while the

TL2FK series (3014 package) can be operated

over a range of 0.20.5W.

Toshiba touted a low forward voltage as

being important to low-power SSL prod-

ucts. The single-emitter TL2FK products

have a typical forward voltage of 2.85V

while the dual-emitter TL3GA products

have a typical forward voltage of 5.7V.

Still, the efficacy of the GaN-on-Si prod-

ucts trails the efficacy of sapphire-based

mid-power LEDs considerably. For exam-

ple, the LEDs substantially trail the mid-

power LEDs that Seoul Semiconductor just

announced.

The mid-power product launch marked

the second major announcement of GaN-

on-Si LEDs from Toshiba. Late last year the

company announced the 1W TL1F1 LED

1309leds_14 14 8/21/13 11:55 AM

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WATCH US IN ACTION


news+views

family (ledsmagazine.com/news/10/1/3).

While Toshiba has said that those products

are shipping in volume, we have yet to see a

prominent SSL product that uses the LEDs.


Osram announces COB and mid-power LEDs

Osram Opto Semiconductors has announced

the Soleriq S 13 family of chip-on-board

(COB) LEDs that delivers 1500 lm from a

light-emitting surface (LES) that measures

just 13.5 mm in diameter. The company also

announced new multi-emitter Duris LEDs,

and an RGB MultiLED family for automotive

applications.

Osram intends the Soleriq LEDs primarily

for use in SSL retrofit lamps and luminaires

designed to replace high-wattage halogen

spotlights (ledsmagazine.com/news/10/8/8).

The LEDs range in CCTs from 27006500K

with a 3000K version delivering typical effi-

cacy of 100 lm/W. The available warm-white

CCT and high CRI make the LEDs suitable

for target markets including retail, restau-

rant, and luxury residential where color

quality is extremely important.

The Soleriq S 13 is an ideal fit for the hos-

pitality and home lighting sector because,

in addition to its high brightness, it covers a

wide range of color temperatures, said Marc

Dyble, product marketing manager for SSL

at Osram. Additionally, the color rendering

index for all color temperatures is over 80.

As a result, the S 13 significantly expands

the application portfolio of the Soleriq LED

family, whose existing E 30 and E 45 versions

are designed for downlights.

The Soleriq S 13 is indicative of a growing

trend toward COB LEDs with smaller LES

diameter and smaller packages that enable

use in lamps and compact luminaires.

For example, Cree recently added COB

LEDs with 6- and 12-mm LES diameters

(see p. 16). The smaller LES enables tighter

beams while efficacy gains still enable

high-lumen designs.

The new S 8 multi-emitter, high-power

member of the Duris series closely groups

the LED chips to deliver very good color

consistency in combination with a high

luminous flux. Designed for directional and

omnidirectional retrofit lamps and indoor

spot lighting, the LEDs are particularly suit-

able for directional lighting in office and

business settings.

In terms of color rendering, the Duris

S 8 has a CRI of more than 80, said Janick

Ihringer, product manager at Osram. An

even higher CRI will be the next step. The

LEDs also deliver high f lux from a small

LES, enabling a simpler interface to opti-

cal elements in an SSL system. Essentially,

the product brings the advantage of simpler

drivers for high-voltage LEDs to the mid-

power space.

Automobile manufacturers, meanwhile,

will have more options in using color

lighting for both function and style with the

MultiLED RGB (red, green, blue) LED from

Osram. The company says that the multi-

emitter LED is useful in lighting instrument

1309leds_15 15 8/21/13 11:55 AM

news+views

clusters, backlighting graphics displays,

and in implementing accent, ambient, and

trim lighting.

The packaged LED includes three indi-

vidually controllable emitters. Osram said

the differentiator in the new RGB LED is

the blue emitter both because of the broad

color spectrum and the f lux output of the

blue emitter. The blue emitter produces

energy over the range of 447476 nm. More-

over, Osram said the blue output of 370 mcd

is much brighter than the blue output in

other RGB LEDs on the market. Brighter blue

is important because the color falls at the

edge of the human visual sensitivity range

and humans perceive blue light as darker

than the measured flux level would indicate.

The new LED can offset this darker per-

ception so that customer brightness require-

ments can be met for all color ranges, said

David Rousseau, LED product marketing

manager at Osram Opto Semiconductors.

Whats more, a short-wave blue color has

a pleasant saturated appearance. We have

now succeeded in implementing this color

range in an RGB LED version.


Bridgelux enhances Vero performance

Bridgelux has announced that the Vero COB

LEDs launched last December are now avail-

able with higher efficacy and tighter color

bins. The company also said that the LEDs

can now be driven at twice the rated current

level, and that the family achieved LM-80

characterization at the end of July.

Bridgelux boasted in the news release of

efficacy as high as 122 lm/W and character-

ized that performance as industry leading.

In reality, those figures were at 25C whereas

many companies now characterize their

LEDs fully at 85C. At the higher tempera-

ture, the tables that Bridgelux distributed

would place the LEDs close to 100 lm/W and

in the same range as products from Cree,

Philips Lumileds, and others. Still, the Vero

product has matched the industry leaders.

The company is also now offering the

LEDs in a choice of 2- or 3-step MacAdam

Ellipse bins. Aaron Merrill, director of prod-

uct line management, acknowledged that

others offer 2-step bins but said Bridgelux

is first to also offer customers 3-step bins.

The question remains as to whether there is

a customer base for a bin between the more

typical 2- and 4-step bins offered by other

companies.

Bridgelux also offers the LEDs in high-

CRI options including the 97-CRI Dcor fam-

ily. Moreover, the Vero LEDs can meet the

requirements of the California Energy Com-

mission (CEC) for CRI R9 scores greater than

50 for the saturated red color sample.


Cree launches smaller COBsCree has announced two new members of

its CXA family of COB LED arrays including

the CXA1304 with a 6-mm light LES and the

12-mm CXA1816. Moreover, the entire CXA

family is now available in a 95 CRI option.

1309leds_16 16 8/21/13 11:55 AM

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The new COB LEDs broaden the span of

products that can be addressed with the

CXA family. The family of CXA LED arrays

appeals to us because of the wide range of

lumen options available, all at very high effi-

cacy levels, said Michael Lin, CEO of Buck-

ingham Industrial Group. Regardless of the

lighting application that we want to address,

there is a CXA LED array offered that is opti-

mized for it.

The CXA1304 LEDs deliver up to 1034

lm with typical efficacy of 102 lm/W at an

85C operating temperature. The LED tar-

gets luminaires such as small track heads

and downlights, or retrofit lamps such as

small ref lector bulbs. The CXA1861 can

enable replacements for 70W ceramic metal

halide (CMH) spotlights as well as smaller

luminaires and retrofit lamps. The LEDs can

deliver up to 3000 lm.

The entire CXA family is LM-80 tested

and offered across the range of 27005000K

CCTs. The new High CRI CXA versions fea-

ture both the 95 CRI and a typical R9 value

of 85 at 3000K. Cree offers the LEDs in 2- and

4-step MacAdam Ellipse bins.


Plessey announces silicon-based blue LED

Plessey Semiconductors has announced the

PLB010350 LED that is manufactured on its

GaN-on-Si manufacturing platform. The

22-mm blue LEDs deliver 350 mW of radio-

metric power when driven at 420 mA a

significant jump from the companys previ-

ously announced Si-based LEDs and a prod-

uct that can serve in some general solid-

state lighting (SSL) applications.

Back in April, Plessey had announced

availability of the PL111010 LEDs that were

more of a proof-of-concept for the GaN-on-

Si technology, delivering only a few lumens

from very low drive currents and maxing out

at 25 mA (ledsmagazine.com/news/10/4/2).

These new LEDs can be driven at up to 1A

continuously and 2A pulsed.

Its not clear why Plessey only announced

a blue version of the new LED design. Cer-

tainly the LEDs could be used in remote phos-

phor applications. The 435460-nm dominant

wavelength range is similar to the royal-blue

LEDs from major LED manufacturers that are

targeted at remote-phosphor SSL products.

The company has not said if it will offer a white

phosphor-converted version of the new LED.

In terms of efficiency, the new LEDs are

markedly improved from the earlier product

but still well behind sapphire-based LEDs.

For example, Cree announced the 2.52.5mm

XLamp XB-D LEDs in January 2012 (ledsmag

azine.com/news/9/1/16). The company offers

a royal-blue version of the LED that delivers

450550 mW at 350 mA of drive current.

Plessey said that the new LEDs can be

used in applications including entertain-

ment and decorative lighting as well as in

wall-washing and -grazing applications.

Moreover, the company said the LEDs are

especially suited to any SSL applications

that require pulsed lighting.


1309leds_18 18 8/21/13 11:55 AM

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+programs funding

DOE revises L Prize

rules for PAR38 lamps

The US Department of Energy (DOE)

has again revised the requirements

for the PAR38 LED lamp competition

within the Bright Tomorrow Lighting

Prize (L Prize) program. Lamps can

now have a slightly wider beam pattern

and the agency reduced some other

burdens on manufacturers.

The PAR38 L Prize competition was

inaugurated in 2008 along-

side the competition

for a 60W-equiv-

alent A-lamp that Phil-

ips won in 2011 (ledsmaga

zine.com/news/8/8/7). The PAR38

competition seeks a replacement for

halogen incandescent lamps. The DOE

had identif ied the A-lamp and the

PAR38 as among the most broadly used

lamps and therefore focused the L Prize

on those products for sockets where

LEDs could deliver the most energy

savings. The nearby photo of an Acu-

ity Brands PAR38 LED lamp is typical

of the product category.

While the A-lamp drew Philips as

an entrant early on and later GE Light-

ing (ledsmagazine.com/news/8/7/1)

and Lighting Science Group (ledsmaga

zine.com/news/8/3/7) each announced

their intention to enter, the PAR38

competition has yet to draw an entry.

The DOE temporarily suspended the

PAR38 competition (ledsmagazine.

com/news/8/1/6) in mid-2011, and then

relaunched it in March 2012 with the

most significant change

The US Department of Energy (DOE) has

published a report on a Gateway demon-

stration of LED streetlights in support of

the Municipal Solid-State Streetlighting

Consortium (MSSLC) that documents tests of

nine LED-based luminaires relative to high-

pressure-sodium (HPS) lights. The Kansas

City, MO trial began in 2011, and reveals that

the LED lights didnt universally best the HPS

incumbents in terms of lumen output or effi-

cacy, but the solid-state lighting (SSL) prod-

ucts did generally deliver more lumens to the

roadway surface and less light spill (ledsmag

azine.com/news/10/8/7). Realize also that the

LED products were installed in February 2011

and therefore use technology that is relatively

outdated at this point.

The project included LED lights installed

in place of 100W, 150W, 250W, and 400W

HPS fixtures. The SSL products ranged from

a 63W fixture used in place of a 100W HPS

lamp to a 291W fixture used in place of a

400W HPS lamp. The measured reduction

in energy varied from 3151% with a mean

of 39%. But the LED lights also emitted 31%

fewer lumens on average.

The LEDs delivered a 15% increase in

mean efficacy although two of the LED prod-

ucts had lower efficacy than the HPS prod-

ucts to which they were compared. Applica-

tion efficacy was more revealing, comparing

the lumens delivered to the target area to

input electrical power. There were still two

SSL products that trailed the incumbents,

although one of the two was not the same one

that trailed in laboratory measured efficacy.

But the advantage for the LED lights was

truly significant in some cases. For exam-

ple, a 130W LED fixture that replaced a

150W HPS f ixture had an

Gateway demonstration for MSSLC reveals LED advantages over HPS

page 22

page 22

1309leds_21 21 8/21/13 11:56 AM


+programs funding

appl ication ef f i-

cacy advantage of 83 lm/W compared to

45.1 lm/W. The report noted that both the

LED and incumbent fixtures were in a set-

ting with some spill light from an adjacent

source. But in a 250W comparison with no

spill light, an LED fixture delivered 47 lm/W

compared to 33.6 lm/W for an HPS fixture.

The report also contemplated the impact of

the LED products on maintenance cost. Kan-

sas City has a program in place to monitor

illuminance levels and to replace lighting that

falls below documented design criteria even

if the light in question hasnt failed outright.

The study included an evaluation of lumen

maintenance based on calculated light loss

factors. That projection revealed that two of

the HPS fixtures would require lamp replace-

ment prior to expiration of the expected lamp

life. The same statement is generally true of

some of the LED products, but that replace-

ment is as much as 30 years down the road.

The study did not project actual maintenance

costs, but clearly the SSL products will deliver

a significant advantage.

DOE publishes Snapshot

Report on outdoor SSL

Separately, the DOE has published what it

calls a Snapshot Report on outdoor area

lighting that is collectively based on Caliper

research into LED parking-garage, can-

opy, and roadway-and-area luminaires. The

snapshot highlights include a comparison

of efficacy of the various products that have

been evaluated in the Caliper program. The

bulk of the products have ranged between

7090 lm/W, although there have been

extremes with products coming in under 50

lm/W or over 100 lm/W. But generally LED-

based luminaires are performing better than

legacy alternatives including HPS lighting.

Just two years ago, HPS was viewed as supe-

rior in efficacy to LEDs, although there were

even then factors, such as broader-spectrum

light, that made SSL a superior light source.

Now the DOE has said that the best of the LED

products in terms of efficacy are substantially

higher than alternatives such as HPS.

The report does note that there are areas in

which HPS lighting is still the predominant

choice. The Caliper program has revealed

few choices among LED luminaires that can

replace the 400W HPS lighting used on major

roadways. The research only considers lumi-

naires that include photometric documenta-

tion under the DOE Lighting Facts program.

The report revealed that there are more

canopy luminaires besting 100 lm/W than

such products in the other categories. But

the canopy fixtures generally have higher

CCTs, and cooler color temperature is

directly related to higher efficacy.

Perhaps surprisingly, the report notes

little correlation between color quality or

CRI and efficacy. High CRI is often achieved

through a broader power spectrum, which

can lead to lower efficacy. But evidently the

various approaches taken by manufactur-

ers to boost CRI have at least made any such

relationship invisible.

The agency has tested luminaires with CRI

between 60 and 80, and products with suitable

color rendering for outdoor applications are

plentiful. Indeed, the SSL products generally

render color far better than HPS sources and

that can make objects more detectable from a

distance. The CCT of the tested fixtures typi-

cally falls in the 40006000K range.


being the number of sample lamps

needed for a manufacturer to enter

the competition (ledsmagazine.com/

news/9/3/5).

The PAR38 L Prize remains a $5 mil-

lion opportunity for a lamp manufac-

turer along with assurances that the

United States government will buy and

utilize the winning lamp. Philips won

$10 million for the A-lamp competition

but may have spent far more on R&D.

Still, the effort left Philips Lighting at

or near the top of the LED retrofit lamp

technology space.

The latest revisions were made based

on realities of the market, according to

the DOE. The luminous intensity dis-

tribution spec has been expanded to a

maximum allowable beam pattern of

15 from the prior 12 requirement.

The bigger changes may be in eligibil-

ity requirements. The rules had required

usage of LEDs made in the United

States. The DOE will still require that

final assembly of the lamp happens in

the US and that entrants have a business

presence in the US.

A change has also been made in

regard to production requirements dur-

ing the first year of lamp manufactur-

ing. The DOE will no longer require an

entrant to commit to producing 250,000

lamps in the first year after receiving

the L Prize award.


Gateway from page 21

L Prize from page 21EPA proposes change to Energy Star verification testingThe US Environmental Protection Agency

(EPA) has proposed changes in the annu-

ally required verification testing of lumi-

naires, simplifying the process when a num-

ber of luminaires use the same lamp or light

engine. The changes are especially applicable

to luminaires that use self-ballasted lamps,

such as LED GU24 products that are used in

many products from multiple manufacturers.

There are separate certification and ver-

ification testing programs for Energy Star.

In the case of the luminaires specification, a

certification body (CB) must perform the cer-

tification testing up front before a lighting

manufacturer can use the Energy Star label.

Subsequently, the EPA requires each CB to

perform annual verification testing on 10% of

the base-model luminaires (the base unit in a

family, for instance) for which the CB has per-

formed certification testing. The CB randomly

selects products for verification, although the

EPA as well as other Energy Star partners can

nominate products for verification testing.

A luminaire that uses a replaceable lamp

or light engine must be tested with a spe-

cific lamp when undergoing Energy Star

testing, and the certification only applies to

the luminaire and lamp combination. Manu-

facturers that ship such a product as Energy

Star qualified must ship the lamp and lumi-

naire together.

The certification and verification testing

processes include tests performed separately

on both the lamp and the luminaire with the

lamp installed. But presently this means that

a CB must test identical lamps multiple times

each year in the process of verifying a lumi-

naire. The EPA is now proposing that that a

CB can test a light source once annually and

apply that test data anytime a luminaire is

verified within a 12-month window.


1309leds_22 22 8/21/13 11:56 AM

1309leds_23 23 8/21/13 11:56 AM

+programs funding

EPA marches toward finalizing Energy Star Lamps specBack in mid-July, the EPA released the final draft of the Energy Star

Lamps V1.0 specification that has been under development for more

than two years. The changes from draft 4 that had been published this

spring are fairly minor; the new spec is slated to take effect Sept. 1,

2014. The agency stated an intent to publish the final spec in August,

although that had not happened when we went to press. There were

significant additional comments on the final draft with changes

requested from six companies and two industry associations.

The final Lamps draft is available on the EPA Energy Star Lamps

web page (http://1.usa.gov/164LERy). The specification will ulti-

mately replace the existing Compact fluorescent lamps and inte-

gral LED lamps specification.

The final draft included minor clarifications to draft 4, although

there were significant changes in the dimming requirements sec-

tion. The easiest way to see the changes is to review the actual spec;

the EPA inserted note boxes that concisely explain the changes where

they were made.

In the dimming area, the EPA relaxed the requirements allowing

lamp makers to test their products with as few as five dimmers, and

allowing lamp makers to specify the dimmers with which their prod-

ucts are guaranteed to work. The final draft also removes require-

ments that tried to segment dimmers by circuit topology for gener-

alization of compatibility ratings; the agency noted that its nearly

impossible to identify dimmers by this topology.

The agency added specific language clarifying that the percentage

of light output relative to a dimmer setting is to be stated relative to

a lamp operated at full brightness on a circuit with no dimmer. As we

have covered previously, many lamps on dimmer circuits dont pro-

vide the same maximum flux with a dimmer set to full brightness

compared to the same lamp on a simple switched circuit.

It appears the EPA will leave the existing A-lamp luminous dis-

tribution requirements in place and will not act on the request by

the Soraa-led coalition asking for a two-stage efficacy spec based on

lamp CRI. We covered both of those issues in our article on draft 4 of

the specification (ledsmagazine.com/features/10/5/8).

Earlier drafts had more stringent requirements for omnidirec-

tional lamps than what will be in the final document. The EPA said

in a cover letter that it would further examine distribution require-

ments after publication of Lamps V1.0. But the tone of the state-

ment implied a further loosening of requirements, perhaps based on

intended applications.

The final draft did not acknowledge Soraas latest request for a

change in efficacy requirements (ledsmagazine.com/news/10/6/3).

Draft 4 had noted the coalitions initial request and that there were

sufficient 90-CRI lamps on the market delivering the existing effi-

cacy requirements, thereby making any change unwarranted.

1309leds_24 24 8/21/13 11:56 AM

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DOE debunks claims of LED light hazardThe DOE has issued a fact sheet that refutes claims regarding inher-

ent dangers of LED-based lighting due to an excess of energy in the

blue end of the human visual sensitivity spectrum, and concludes that

white LED light is no more hazardous than light from other sources.

The presumed problem is founded on the fact that phosphor-con-

verted white LEDs are based on a blue LED, with the phosphor pro-

ducing the white light. Some of the blue photons pass through the

phosphor; there is research documenting that excessive blue light can

disturb our circadian rhythm and cause other maladies. Others have

claimed that excessive blue light may damage eye cells.

The DOE fact sheet, however, explains that all light sources have

energy in the blue area of the spectrum. Blue energy is necessary for

proper color rendering, and blue light is proven to be beneficial for

alertness when experienced in the morning.

The DOE goes on to say that LED lighting has no more blue energy

than lights of the same CCT based on other types of sources. If there

were an excess of blue energy in an LED light, it would impact the

CCT. The fact sheet also explains that, even with excessively bright

lighting, human response mechanisms such as blinking or looking

away typically protect the eye from damage.

The DOE concluded that lighting products should meet photobio-

logical safety standards including CIE S009-2002, ANSI/IES RP27,

and IEC/EN 62471. We ran a three-part series of articles on the topic

last year (ledsmagazine.com/features/9/2/9).

DOE documents residential

energy use for lighting

The DOE has published research conducted by the Pacific Northwest

National Laboratory (PNNL) that documents residential lighting

consumption across the nation. The report entitled Residential

lighting end-use consumption study: Estimation framework and

initial estimates is accompanied by spreadsheets that allow data

filtering and an interactive US map (http://1.usa.gov/13eQG01).

The report details lighting use by lamp characteristics, house-

hold characteristics, and where lamps are used within a home.

The results include hours of use statistics, along with energy used

broken down by geography.

Massachusetts, New York, and California were identified as

using the least power for lighting, with the states averaging less

than 1500 kWh/year in each home. In contrast, Idaho, Montana,

Utah, Wyoming, Missouri, and Arizona average more than 2100

kWh/year. The national average is just over 1700 kWh/year.

The PNNL gathered data from recent regional and national

studies including end-use metering studies correlated with

household characteristic and lighting product inventory data.

Extrapolations were necessary in some regions where complete

data wasnt available. But researchers verified the accuracy of

estimates for California, lending credibility to the entire data-

set. The methodology will enable simple updates as more regional

research becomes available.

1309leds_25 25 8/21/13 11:56 AM

1309leds_26 26 8/21/13 11:56 AM


conference report | THE LED SHOW

The LED Show got off to a quick start

on August 14, with the first session

asking the question, Can LEDs

really continue to improve at the rate they

are now? Ultimately the speakers from

Philips Lumileds, Nichia, and Cree focused

more on how to meet solid-state lighting

(SSL) system quality and cost goals with dif-

ferent LED technologies. The discussion was

certainly spirited as the competitors clearly

see different component paths that will lead

to broader SSL deployment.

The 2013 rendition of The LED Show

topped all previous shows with more than

2,600 attendees and an exhibit hall with

more than 100 booths. The conference pro-

gram included 35 industry experts and the

attendees added to the learning experience

with outstanding comments and questions

following each session. The September issue

of LEDs Magazine went to press right as the

show ended so we will have limited coverage

here, but the opening session on packaged

LEDs was extremely compelling.

Efficacy roadmaps

Chad Stalker, regional marketing manager

for the Americas at Lumileds, led off and

said up front that future efficacy advance-

ments will come more at the system level

than the component level. He said that LEDs

will continue to improve but at a slower rate.

He added, LED systems will continue to

drive the improvement.

Stalker showed the US Department of

Energy (DOE) roadmap for SSL and how the

agency adjusted the efficacy plateau in 2012,

extending the potential for more energy sav-

ings. Stalker said, System integration is

what is driving those curves back up.

Still, its advancements at the component

level outside of efficacy in many cases

that can improve system efficacy and deliver

better quality light. Indeed, Stalker said the

industry needs efficacy balanced with func-

tionality and good light quality, and of course

cost comes into play.

He said better red LEDs

mixed with phosphor-con-

verted white LEDs are crit-

ical to good color rendering

at warm CCTs. The white

LEDs need to be very high

in efficacy and can be off

the blackbody curve as long

as you have good red LEDs,

and Stalker noted that those

products are available. More-

over, he said that you can cre-

ate cost-effective fixed-CCT

designs with a simple driver

or add complexity for incan-

descent-like dimming.

Of course, Philips has also

invested heavily into tunable

color with its Hue lamps that

rely on a lime-green LED, and

Stalker said that green LED

advancements are critical

for quality and cost-effective

tunable products. When ques-

tioned about the Lumileds

lime-green LED, Stalker

said the company had made

material advancements to

achieve high-efficiency green,

whereas other manufacturers

are using phosphor to try and

deliver efficient green LEDs.

One other questioner brought to light

an issue that exists for documenting and

projecting quality in color SSL products. The

LM-80 test standard is specific to white LEDs.

For now, Stalker said there is no standard way

to document LED performance for color-

Packaged LED discussion provides

rousing start at The LED Show

Cree, Philips Lumileds, and Nichia presented conflicting views on the future of packaged LEDs,

although all agree that the components will continue to advance, and SSL system design is the key

to better lighting products, reports MAURY WRIGHT.

The LED Show 2013 topped all previous shows with

more than 2,600 attendees and an exhibit hall with

more than 100 booths.

1309leds_27 27 8/21/13 11:56 AM


conference report | THE LED SHOW

tunable products, but he expects future work

on the problem to focus at the subsystem level

rather than on LEDs.

Mid-power LEDs

Erik Swenson, manager of LED sales at Nichia,

took the stage next and focused almost exclu-

sively on mid-power LEDs. He said that those

components are improving more rapidly than

high-power devices in terms of efficacy and

offer better quality and aesthetics that better

match many application requirements.

Nichia remains the largest LED manu-

facturer in the world. Swenson said that

the company is making 3 billion packaged

LEDs monthly, and that is three times the

volume of the nearest competitor. In look-

ing at future advancements, Swenson said

that the LED component industry is at the

maturity level of a college student, indicat-

ing significant headroom for improvement.

Pushing the mid-power theme, Swenson

also said the devices offer an economy-of-

scale advantage that high-power devices can

never match. He said that the Nichia 757 LED

is used in applications ranging from street-

lights to retrofit lamps to display backlights

to automotive applications. That broad appli-

cability will presumably deliver an increasing

cost advantage as Nichia manufactures more

of the same product.

Without question, high volumes are the

key to low-cost manufacturing in the semi-

conductor world. But what weve seen in LEDs

in recent years are components optimized for

specific applications, especially from Cree

and Lumileds. Those companies try to max-

imize volumes of the same wafers through

the epitaxial process and then deliver many

different products, for example, with multi-

ple emitters or specialized optics, in the back

end of the manufacturing process.

Swenson said mid-power LEDs also offer a

yield advantage in manufacturing. His rea-

soning was that if you have the same num-

ber of bad die on mid-power and high-power

wafers, with far more mid-power LEDs per

wafer, then the mid-power yield is bet-

ter. That argument rang hollow, however,

because a bad area of a wafer could easily

impact multiple mid-power die. Still, the

fact that Nichia focuses on making higher

volumes of a single product would improve

yield throughout the manufacturing process

including packaging.

High-voltage LEDs

Paul Scheidt, product marketing manager

at Cree, was last up in the LED session, and

that provided him some leeway to state a case

that couldnt be immediately refuted. He also

began focused on the system-level problem to

make the point that LEDs are a decreasing

cost factor in SSL products relative to other

things such as drivers, thermals, and optics.

To frame a system-level discussion,

Scheidt presented a reference case of a 400-

lm, 40W equivalent retrofit lamp with a

3000K CCT and 80 CRI. He went through dif-

ferent product design scenarios that might

be used to realize such a lamp.

The AC-LED approach is one possibility

Scheidt considered, because that technol-

ogy presumably eliminates the driver part

of the cost equation. But Scheidt said AC-

driven designs require more LEDs because

not all of the LEDs are driven at any point in

time. He said even the latest AC technology

only achieves 70% LED utilization.

Moreover, Scheidt said AC systems have

flicker problems that simply cant be solved

because all of the LEDs are turned off at

times. Switching them on and off a lot cre-

ates the worst flicker possible, said Scheidt;

he added that the designs cant pass Energy

Star certification requirements. He further

said that EMI problems require extra cir-

cuitry or essentially a driver IC.

Seoul Semiconductor was exhibiting at

the show and asked to respond to Scheidts

comments. Seoul director of marketing

Theron Makley said that the latest AC-LED

modules such as Acrich2 use a combina-

tion of technologies to overcome the issues

associated with earlier products. He said,

These advanced AC-LED modules are used

in many applications, such as replacement

lamps, downlights, streetlights, and flush-

mount fixtures.

Crees Scheidt also addressed mid-power

LEDs, saying that in many cases the LEDs

will shift in color with

unacceptable results in

as little as two years.

He said the problem is

especially significant

as you drive the LEDs

harder and try to limit

the number of LEDs in

the system.

Most of Scheidts com-

ments on mid-power

devices were directed at

LEDs in plastic pack-

ages. Its worth noting

that Nichia has said its

757 LED actually uti-

lizes a ceramic-com-

posite package. The

c omp a n y h a s not

revealed details of the formulation, but

Swenson has previously said that the

package delivers lumen and color mainte-

nance that can match high-power LEDs.

Scheidt concluded that in many appli-

cations, such as retrofit lamps, high-volt-

age, high-power LEDs offer the best system-

level approach. He said such components

simplify the driver design and also match

the application requirements of light dis-

tribution and quality. In fact, Scheidt said

that SSL products such as streetlights and

ceiling troffers, which use large numbers

of single-emitter LEDs, have always been

high-voltage designs at the driver level.

And those products are broadly success-

ful and feature SSL-industry-leading sys-

tem efficacy.

Clearly the session provided food for

thought and left questions unanswered,

although its also obvious that the compo-

nents will continue to improve and product

developers face a complex set of choices. The

remainder of the conference offered many

more insights and we will provide more cov-

erage in the fall edition of our Illumination

in Focus publication.

Chad Stalker of Philips Lumileds, among several presenters

in the opening session at The LED Show, discussed how to

address future solid-state lighting quality and cost goals.

1309leds_28 28 8/21/13 11:56 AM

1309leds_29 29 8/21/13 11:56 AM

1309leds_30 30 8/21/13 11:56 AM


conferences | SIL EUROPE PREVIEW

Sponsored by PennWell Corporation

and organized by its subsidiary

Strategies Unlimited, the 4th annual

Strategies in Light (SIL) Europe confer-

ence will be held in Munich, Germany from

November 1921, 2013. Set to a theme of

Developing the new ecosystem of lighting,

the conference program will feature presen-

tations on the challenges and opportunities

facing the European lighting industry as it

makes the transition to solid-state lighting

(SSL). Conference presentations will be made

by representatives from all segments of the

LED vertical supply chain, from component

suppliers to lighting designers and retailers.

Although still in the early stages of market

penetration, the adoption of LEDs in a vari-

ety of lighting applications is on a dramatic

growth path that is apparently irreversible

(ledsmagazine.com/features/9/12/6). Still,

there are many challenges, both techni-

cal and market related, that must be over-

come before LED lighting achieves adop-

tion on a large scale. SIL Europe will address

these challenges from multiple perspectives.

Existing and new market opportunities will

also be explored, with a focus on the driv-

ing factors of the applications for which LED

lighting is best suited.

SSL strategies and speakers

SIL Europe 2013 will offer three full days of

conference activities. The first day is devoted

to workshops and the SSL Investor Forum.

This years workshops will address two top-

ics of key interest to the LED lighting com-

munity: Beyond photonics Quality met-

rics for solid-state lighting, presented by

Cree, and Solid-state lighting measure-

ments From basics to recent develop-

ments, presented by Instrument Systems.

The SSL Investor Forum, sponsored by

Berenberg, is being expanded to a full day

to provide presentations by exciting new

SSL startups as well as large, publicly-traded

lighting companies.

The second day begins with the Keynote

and Plenary Sessions, discussed in more

detail further on. For 1-1/2 days following

the Keynote and Plenary Sessions, the con-

ference will be divided into two parallel

tracks: Market and Technology. The Mar-

ket Track is discussed in this article, while

the Technology Track will be addressed

in a subsequent article. For the first time,

several of the conference sessions will fea-

ture panel discussions that allow speakers

to communicate with delegates in a more

interactive manner.

Another first at the 2013 event is the

introduction of various free presentations

offered on the exhibit f loor. Tailored to

the interests of exhibit-only visitors, these

presentations will range from new product

introductions by manufacturers to sem-

inars on the latest developments in stan-

dards, programs, and supporting activities

for the European SSL industry.

SIL Europe 2013 will feature high-level

speakers from well-known European light-

ing companies. Keynote speakers will

include Peter Laier, chief technology offi-

cer, Osram GmbH, and Jeffrey Cassis, SVP

and general manager, Global Lighting Sys-

tems, Philips Lighting. Continuing the tra-

dition established at the inaugural event

in 2010, Strategies Unlimited will provide

its most recent market review and fore-

cast of the global LED lighting market.

Plenary speakers will include Klaus Vam-

berszky, EVP technology, Zumtobel Group,

and Zoltan Koltai, EMEA technology direc-

tor, GE Lighting. In addition, Marc Led-

better, manager of advanced lighting at

the Pacific Northwest National Laborato-

ries, will give a plenary address on the US

Department of Energys role in the devel-

opment of SSL in America.

SIL Europe addresses the development

of a new lighting ecosystem

The adoption of LED lighting brings numerous challenges and opportunities to light, as

the market track at the 2013 Strategies in Light Europe event will demonstrate, reports

BOB STEELE.

BOB STEELE is a Consultant, LED Practice

with Strategies Unlimited.

At SIL Europe, representatives from the LED vertical supply chain as well as market

analysts will focus on the challenges and opportunities facing the lighting industry.

1309leds_31 31 8/21/13 11:56 AM



Market track: Drivers,

development, and design

The market track will begin with a session

that addresses some of the key issues asso-

ciated with pushing LED lighting into the

marketplace. Anna Weiner Jiffer, business

area manager for global lighting at IKEA,

will discuss the companys transition into

one of the leading worldwide retailers for

LED lighting products. Brad Koerner of

Philips Lighting will address the paradox

of standardization LED light engines

and mass customization. Kasper Kofod

of Energy Plano will review some of the

major EU initiatives for SSL, including

the Ecolabel program and Green Public

Procurement criteria.

Following a successful workshop address-

ing the biological effects of lighting in 2012,

SIL Europe will offer an entire session on

this topic for the first time. The featured

SIL Europe 2013 will feature high-level speakers from well-known European lighting companies.

1309leds_32 32 8/21/13 11:56 AM


5 - Y E A R W A R R A N T Y

1 0 - 3 0 0 W A T T M O D E L S

4 8 0 V I N P U T M O D E L S

C U S T O M D E S I G N &

M O D I F I C A T I O N S

D I M M I N G O P T I O N S

L E D

D R I V E R S

R E L I A B L E

E C O N O M I C A L

I N N O V A T I V E

A D A P T A B L E

D C I N P U T M O D E L S

E X T R E M E

C O N D I T I O N S &

T E M P E R A T U R E S

C O M P A C T D E S I G N S

U S E N G I N E E R I N G

S U P P O R T

AU T E C . C OM


speaker in the session will be the world-renowned expert on chro-

nobiology, Professor Till Roenneberg, vice-chair of the Institute of

Medical Psychology at Ludwig-Maximillian University, whose pre-

sentation is entitled Lighting for life. Other speakers in the ses-

sion include Volker Lindenau of A. T. Kearney, who will speak on the

market potential of biologically efficient lighting, and Dieter Lang of

Osram, who will address the benefits and challenges of biologically

efficient lighting applications.

As always, market development will be a major focus of the con-

ference. In the Market Development session, Annetta Kelso of Philips

Lighting will provide insight on managing the second phase of the

SSL market transformation (for insight into the initial transforma-

tion phase, see Kelsos November/December 2012 article on Europes

LED lighting market at ledsmagazine.com/features/9/12/12). Leonid

Moiseev of Optogan will provide a perspective on how LED lighting

selection criteria vary in different European regions, and Juergen

Waldorf of ZVEI will discuss

the successful implementa-

tion of an LED market initia-

tive in Germany.

As an important and

growing application of LED

lighting, outdoor will be a

featured topic for SIL Europe

2013. Koen Van Winkel of

Schreder will provide an

overview of some of the key

emerging technology trends

in roadway and street light-

ing. Evgeny Dolin of the LEDs

and LED-Based Systems Rus-

sian Manufacturers Non-

profit Partnership will shine

a light on the emerging market for LED outdoor lighting in Russia.

Marc Guiraud of LightingEurope will provide an update on the ESOLI

project to demonstrate energy-saving outdoor lighting in Europe.

The market track will also have a session that will focus on LED

lighting projects and experience from the end user side, rather than

the supplier side, as has been the customary approach in previous

conferences. Florian Felsch, of lighting design company Livebau

Solutions, will give a presentation on enhancing value through the

right illumination, targeting the premium automotive industry.

Franois Seguineau of Toshiba Europe will discuss smart lighting

from the perspective of increasing the market opportunities for SSL

by enhancing the end users experience.

Although reliability does not at first appear to be a market-related

issue, in fact it has a strong impact on market acceptance of a new

technology such as SSL. In this regard, Michael Schremp of Munich

Re will present some new ideas for risk management solutions that

can protect SSL manufacturers against warranty claims. Looking

more at the component level, Matteo del Lago of the University of

Padova will provide insight on the characterization and reliability

of high-power LEDs for indoor lighting.

More information on Strategies in Light Europe 2013 can be found

on the conference website at sileurope.com.

Attendees will learn what's driving

LED lighting applications.

1309leds_33 33 8/21/13 11:56 AM

1309leds_34 34 8/21/13 11:56 AM


Computer-aided design (CAD) technol-

ogy has been applied in many tech-

nology segments and is increasingly

important in the optical space. Optical sim-

ulation can speed product development and

ensure that new products provide optimal

illumination. However, the available opti-

cal CAD software tools are largely proprie-

tary, including the file formats used to store

light-source ray files. An ongoing Illuminating

Engineering Society (IES) effort is seeking to

standardize ray files to ease the burden on

light-source suppliers, including LED manu-

facturers, and make optical CAD tools more

broadly applicable.

leds201309--dl.pdf

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