www.toptical.com.tw 02-2346-1510 [email protected]VIDEO CAMERA Photometer 12 4 - www.toptical.com.tw 02-2346-1510 [email protected]13 4 - Lasers · Light Sources Solar Cells · Lighting CCD Cameras · Imaging Spectroscopes Tests · Instruments Semiconductors · Communications Components · Mechanics · Positioning Detection · Sensors Components Lens SIGMA 18-50mm F2.8 EX DC Macro (incl. lens hood and dust cover) Transport Mobility case Samsonite + carrying strap Transport case TechnoTeam Wide strap [ EW-100DBII ] Power supply 2 Lithium-Ion accu [ LP-E5 ] Battery charger LC-E5 or E5E + power plug AC adapter kit [ ACK E5 ] Compact mains adapter [ CA-PS700 ] + power cord DC coupler [ DR-E5 ] Cable/Interface Video cable [ VC-100 ] USB Interface cable [ IFC-200U ] Memory card SDHC card 4GB Software EOS Digital Solution (CD ROM) LMK 2000 measuring software (CD ROM) Manual / Certification Manual Canon EOS 450D Manual LMK mobile advanced Manual LMK 2000 Software Software manual (PDF) Calibration certificate Optional additional SDHC card Remote control RC-5 Tripod CAMERA PHOTOMETER based on the Canon EOS 450D digital reflex camera Applications • Indoor measurements, for example in offices and desktop areas in offices. • Fast and easy determination of luminances in outdoor areas. For example the illumination of public squares and places in the urban surrounding. • Review the illumination on façades and of street lighting fixtures and other public traffic ways. camera Canon 450D (digital / reflex) lens Sigma 18-50mm F2.8 EX DC Macro Obtain the parameters for glare and daylight (luminance, vertical and cylindrical illuminances, UGR, DGI, daylight quotient D, uniformity). Glare rating on outdoor luminaires (luminance, vertical illuminance, veiling luminance, uniformity). Evaluate the illumination of streets considering valid standards (luminance, vertical illuminance, lengthwise uniformity, TI-value). Electronics Sensor / Resolution CMOS Canon APS-C with 4272(H) x 2848(V) File format 14 Bit RAW - data with Bayer structure uncompressed PC-Interface USB 2.0 Luminance resolution 2136(H) x 1424(V) Dynamic resolution Single measurement: 1:4000 High-Dyn measurement: 1:32000 (1/1250 s < ti < 8 s) Configuration Aperture values F4 - F11 (calibrated) in 1/3 steps Focus (measuring distance) > ca. 130mm (automatic focus/manual focus) Focal length / Viewing angle focal length 18mm: 65°(H) x 45°(V) focal length 50mm: 28°(H) x 19°(V) Light sensitivity (typical accuracy rating) Exposure time 30 sec. - 1/4000 sec. AEB +/- 2 EV in 1/3 steps (manual) Blende 4 4 11 ISO 100 1600 100 t i = 0,001 s 20 kcd/m² 1200 cd/m² 140 kcd/m² t i = 3,0 s 6 cd/m² 0,36 cd/m² 50 cd/m²
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Result data• luminancedistributionsinmeasuringimagesL(x,y)• derivedlighting-engineeringparameterssuchasilluminancedistributionE(x,y)andluminousintensitydistributionI(x,y)
Night designThecockpitandnightdesign (automobile industryanditssupply industry,avionics),offersmanifoldapplicationsof thespatiallyresolved luminanceandcolourmeasuringtechnology.• brightnessanduniformityofsymbolilluminations• colourrenderingofthefunctionalillumination• contrastdistributionondisplays
For thispurpose, theTechnoTeamcompanyhasdesignedspecialsoftwaresolutions for recordingandevaluatinglowluminancesofsmallestsymbols,forexamplewiththesymbolobjectformeasuringthemeanluminanceusingadaptivealgorithmstodetermineluminancethresholds,thusofferinganumberofadaptedsolutions.
Measuring headlampsBeing the supplier ofmeasuring equipment for a bignumber ofmanufacturers of lighting and illuminationdevicesandmaintainingclosecontacts to itsscientificenvironment, theTechnoTeam company has gainedexperienceinhandlingbothlowestandhighestluminances,andisthusinapositiontooffersolutionsadaptedtoveryspecialapplications.• determinationof the illuminancedistributiononplanesurfaces
• calculationof the luminous intensitydistributionof theheadlamp
• measurementof thecolourscaleandcolourdeviations,e.g.onbrightanddarkedges in theprojectedimageofaheadlamp
• Determinationof the illuminancedistributionwithregard toergonomicandeconomicaspectsofworkplaces;evaluationofcircadianactionpotentialsofartificiallightingwithregardtothehealthandwell-beingofhumans
LMK modelsThecentrepieceof theLMK family is the luminancemeasuringcamera typeLMK98.TheyuseselectedCCDsensorsmadebySonyorKodak.ThecurrentmodelistheLMK98-4andtheLMK98-4color.
With the releaseof thesecamerasboth thedesignjustas theelectronicsystemof theLMKhavebeenmodified.Themeasurement system ismuchmorecompact.Furthermore,theoperationoftheLMKwithadesktopPCoranotebookispossible,nowasbefore.
Formobileapplications,however, theLMKmobileadvanced isavailable. It isbasedon thehigh-qualitydigitalcamerasoftheCanonEOSseries,whichhavebeenupgradedtosuitthisapplicationpurpose.Thus,theusershaveattheirdisposalaluminancemeasuringsystemwhich is easy tooperateandwhich canbeappliedforsolvingmobilemeasuringtasks.
The luminancemeasuring camera LMKHighRes,equippedwith5,11or16megapixelsensorresolution,representsasolution for fieldsofapplicationswhichrequireahigh2Dmeasurementresolution.
MODELSTheLMK98-4 isahigh-techdigitalCCDcamerasys tem equ ipped w i th a prec ise ana logueelectronic system for signal generation. Eachcameraisprovidedwithaespeciallycalculatedandmanufactured full filter inorder toachieveahigh-qualityV(l)-adaptationfordeterminingtheluminance.
LMK 98-4 and LMK HighResSensorCCDSony[ICX285AL(2/3")]effectivePixel[1380(H)x1030(V)]CCDSony[ICX655AL(2/3")]effectivePixel[2448(H)x2050(V)][12Bitdigital,progressivescan]
MODELSTheapplicationof high-quality digital cameras inthe LMKsystemallows an easy and fast captureof luminance imageswithout dependingon yourmeasuringcomputer.Forevaluating the images, thecompletefunctionalityoftheLMKLabSoftsoftwarecanalsobeutilized.
With thealreadyexistingsystems typeLMKmobileandLMKmobileadvanced,ofwhichmore than100havebeensoldso far, theTechnoTeamcompanycanrelyonexcellentknow-howandmanyyearsofexperiencein the fieldof luminancemeasuring technology.Thesecondgenerationofmobile luminancemeasuringcamerasrepresentedbytheLMKmobileadvancedsystemisbasedonmodelsoftheCanonEOSseries.
Ti\Av 4 5.6 8 11
0.25 ms 3.1 3.5 3.7 4.3
2.5 ms 1.5 1.8 2.0 2.7
25 ms 1.3 1.7 1.9 2.5
0.25 s 1.3 1.7 1.9 2.5
2.5 s 1.3 1.7 1.9 2.5
RepeatabilityaccuracyΔLin%
Ti\Av 4 5.6 8 11
0.25 ms 7.6 8.0 8.2 8.8
2.5 ms 6.0 6.3 6.5 7.2
25 ms 5.8 6.2 6.4 7.0
0.25 s 5.8 6.2 6.4 7.0
2.5 s 5.8 6.2 6.4 7.0
MeasuringaccuracyΔLin%(forstandardilluminantA)
LMK mobile advancedSensor CMOSCanonAPS-C4272(H)x2848(V) effectivepixel(resolutionoftheluminanceimage)2136(H)x1424(V) 14BitRAW-datawithBayerstructure,uncompressed
AdditionallytoallcamerasystemsoftheLMKfamily,theLMKLabSoftissupplied.Themeasuring softwareoffers a big number ofpossibleapplicationswhenusing the luminance
SinglePic-capture-permitsaluminanceimagetobetakenveryquickly.MultiPic-capture -permits the repeatedcaptureofseveralsingle imagessoas toeliminatestatisticalmeasuringerrorsthroughaveraging.HighDyn-algorithm-permits thecaptureofa luminance imagecomposedofsingle imagesatvariousintegrationtimessoastorealizeahigherdynamicrange.
For thevisualizationof themeasuring results, theusercanchoose,amongother things, froma freelyscalablepseudocolouringaswellasseverallogarithmicrepresentations.Pre-madeandfreelyscalablepoint,line,circularandrectangularcursorspermitthemeasuringdatatobeaccessedinaquickandflexibleway.Thedefiningofmeasuringregionsbymeansofgeometricalbasicshapesfacilitatesevaluation.Inaddition,theyprovidemanyauxiliarymeans for thestatisticalevaluationof thedata (tables,sectionaldiagrams,histograms,andphotometricevaluationalgorithms).Furthermore, thesoftwareoffersa function foranautomaticaldetectionofregionsbymeansofluminances.Thisisbothusefulandadvantageousfordetectingcomplexgeometricalstructures.
The report function for anexport ofmeasurementdataandevaluation results toMSWord®andMSExcel® isasimpleandcomfortablepossibility for thecommunicationandthesharingofmeasurementdatawithothers.Furthermore, theyoffer theadvantageofastandardor individualprinting template tocreateaprintingreport.
TheLMKLabSoftsoftwareprovidesabigvarietyofdata formats for theexportand importof imageandmeasuringdata,forexampleforMatLAB®,LabVIEW®andSPEOS®.The data exchangewithMicrosoftOffice®products and other software programs isenabledbythefunctionsoftheWindows®clipboard.
Enhanced software package for colour captureWiththeLMKLabSoftcolorthecompletefunctionalityoftheluminancemeasuringsoftwareLMKLabSoftisavailablefortheassessmentofchromaticityvaluesoutofthreechannelcolourimages.ThemeasuredX,Y,Zcolourvaluescanbeconverted intodifferentcolourspaces(e.g.RGB,XYZ,sRGB,EBU-RGB,Lxy,Luv,L*a*b*,HIS,HSV). IncaseofmeasuringLEDsor lampsacolourspaceshowingthedominantwavelength, the colour saturation and thecorrelatedcolour temperature isavailable. It ispossibletocalculatecolourdistancesandcolourdifferences in several colour spaces.Amongto the standard graphical forms of showingmeasuredvalues ingraphsanddiagrams (inthreechannels) thechromaticity coordinatescanberepresented inacolourspacediagram(e.g.horseshoeview),whichshowsthecolourgradientandstatisticalaccumulationpoints.
LMK LabSoft simpleTheLMKsimplepackage isoffersameasurementsystemwhich includes theknowncamerahardwareincombinationwithonlyessentialsoftwarecomponentsata lowerprice.Therefore,allvideophotometersystemscanbeequippedwiththeLMKLabSoftsimplesoftware.Thissoftwareisreducedtoseveralselectedbasicfunctionalities.Basedonthestandardhardwareof theLMKvideophotometersystems,onefor theapplicationoptimizedlensismounted.ThepackageLMKsimplecomesinprinciplewithonlyonefreeconfigurablestandardlens.
LMK LabSoft extendedWiththisversionoftheLMKLabSoftsoftwarethepossibilitiesforaninteractionandautomationoftheimageprocessingprocedures is rapidly increased.ByusinganActiveXÒInterface theLMKLabSoftand theiressential functionalitiescanbecontrolledbyseveralothersoftwareapplications.Theassessementof theimageandmeasurementdatacanbedonedirectlyviathehostapplication.Therefore,theintegrationofthesoftwareintoanexistingworkflowisnoproblem.Furthermore,anewinterfaceprovidesthepossibility touseover200algorithmsespeciallydevelopedbyTechnoTeamfromthefieldofindustrialmachinevisionandimageprocessingintheLMKLabSoftsoftware.Thus it ispossible tosolvecomplex issues inuncommonandspecific fieldsofactionwithonespecificsoftwaresolutioninoneclick.SuchsoftwaresolutionswillbeprovidedbyTechnoTeamonrequest.
Software functionalityLMK
LabSoft simple
LMK LabSoft
Liveimage X XExposureadjustment X X
Image capture'SinglePic'-image X X'MultiPic'-image X X'HighDyn'-image X XColor'HighDyn'-image X XCapturingmodulatedlight X XLiveLuminanceandLiveHighDyn XCapturingmeasurementseries(manual,timecontrolled,mechanicalcontrolled) XRepresentationofimages(Pseudo-colours,ISOcolours,scaling) XWorkingwithimages(load,save,delete,copy,print) XDisplayingmeasuringvaluesbymeansofcursors(standard,rectangle,circle,line,circularring,cross,zoom) X
Measurementregions(load,save,copy,paste,group,print) X
Measuring value indication using inspectorsStandardstatistics(standardevaluation,histogram,sectionalview,timestatistics,luminanceobject,integralobject,symbolobject,arcobject,filamentobject) X
Reportfunction(create,load,save,print) X
Evaluation images and image processingAdditionalevaluationimages 1 NPhysicalparametersandunits X XAssigninglistofregions XAssigningimagetabwindows XImagearithmetics XCoordinatetransformation XProjectiverectification-orthophotographs X XISOlinesinluminanceimages X X
Colour images and colour metricsColourspaceandmeasuringvalues X XCalculationofcolourdifferences X XDecompositionofcolourimagesintocolourextractimages XCompositionofcolourextractimagesintocolourimages XTestcolourimages XMeasurementprotocols(create,load,save,comments) X X
Automation via TCL-Macro and Active XRecordingofTCL-Macros XRunningofTCL-Macros X XActiveXprogramminginterface X X
Extrasmotorcontrol,photometercontrol,conoscopiclens,LVKmeasurementandmanymore X
Anumber of specific features of the LMKLabSoft softwarehavebeendeveloped tosatisfy customerwishes. So for specificmeasuring tasks, a number of var iousadditionalmodules for the LMK LabSoftsoftwareareavailable.On the basis of its technical know-how,the TechnoTeam company wi l l providecustomerspecificsolutionsinthefuture.
• LMK LabSoft Headlamps means anextendedversion (oradditionalmodule)wh i c h pe rm i t s t h e c o r r e spond i ngi l luminance image and also the LiD(luminous intensitydistributioncurve) tobecalculated fromtheoriginal luminanceimage captured bymeans of the LMKcamera.Here, the illuminance can bedeterminedeitheronaplane (e.g.onaprojectionwall locatedatadistanceof10m)oronahemisphere(e.g.25mradiusforECE).Furthermore,theconversionintothe illuminancesprevailingon theroad isprovidedasanadditionaloptionparticularlyfortheautomobilesector.Headlamps emit light over very largeangles, sometimesevenover theentirehalf-space. Inmost cases, onlymuchsmaller angles canbe captured in oneimage.So,severalpartialimagescapturedat different angular ranges can be puttogethertoformonecompleteimage.
• LMKLabSoftRoadsand tunnels, is anadditionalpackagesuppliedbymeansofwhichstreet lightingscanbemeasured ina fastandeasyway.Theuser isable toacquireallparametersnecessary for theDINEN13201standardbyonesinglecapture.Themeasuredluminancevalueswillthenbeprocessedbythesoftwareforfurtheruse.
ACCESSOIRESLensesVarious focusable standard lenseswith a fixedaperture fordifferent focal lengths f´=8mm,16mm,25mm,50mmand75mmareonoffer.Theselensesarenearly flarefree.Theyaresetandoptimizedbyus for theconcreteapplication.Foran integrationtimeof3sec., thesensitivityof these lenses isupto1cd/m²measurementrangeendvalue.Furthermore,all those lensescanbeorderedwitha fix focus forfixedmeasurementdistances.Forsmallobject fieldsa telecentricmacroscopic lens (Macro) isavailable.Furthermore, this lens can be adapted to themeasuringfieldviavariousdistancerings.
Special imaging systemsThesemisphericallensallowsthecaptureofanobjectfieldatafieldangleof±92°.Thislenscanbeusedforcapturingcomplex illuminationsituations, forexample inthecaseoftheevaluationof interiors.Fordetermining the radiationcharacteristicsofsmallfields, forexamplefordeterminingtheangle-dependentcontrastofdisplays,aconoscopiclensisofferedwhichcanbeusedtorecordtheluminancewithinanangularrangeof±60°.
Neutral density filtersND-filterswithdifferenttransmissionsrangingfrom0.5…0.00001enhancethemeasurementrangeoftheCCDcameratobeincreasedforthemeasurementofveryhighluminances.
aperture (f=mm)
min. measuring distance1
(mm)
least field of view (circa)
least field of view
(mm x mm)
field of view with a distance of
500 mm
field of view with a distance of 1000 mm
8 500 60°(H)x56°(V) 520x390 520x390 1125x845
16 185 30°(H)x22°(V) 85x64 270x203 540x407
25 220 20°(H)x15°(V) 58x44 160x120 360x275
50 280 10°(H)x7°(V) 32x23 75x56 160x120
75 565 6°(H)x5°(V) 52x39 - 105x78
telecentric macro lens with distance ring
measuring distance1 (mm)
field of view (mm x mm) depth of focus (mm)
0mm 160 14x10 ±0.3
+10mm 160 10x8 ±0.2
+20mm 160 7x6 ±0.15
+30mm 164 6,5x5 ±0.15
+40mm 169 5x4 ±0.1
Further lens solutions with other viewing types can be realized on request.
LED normalWiththeLEDnormal theTechnoTeamcompanyofferscoloured luminancestandardsbasedonLED.Thestabilityoftheluminanceisrealizedthroughthecontrolledconstantcurrentoperationofselected5mmLEDs.Here,theclosed-loopsystemiscontrolledbyaspectrallymatchedphotodiode,withtheLEDsbeingthermallystabilizedbyaPeltierdevice.
SymbolcheckerTheSymbolchecker isasemi-automaticstand-alonesystem for qualitymanagement in the productionof backlit symbols (e.g.switches and dashboardinstruments).
• Structurewidth:meansageometricalmeasurementofsymbolsegmentswithparallelouter lines.Withthecalculateddistancesoveraniterativecalculatedaverage value (eliminating the valueswith thelargestdifference fromthecurrentaveragevalue)thestructurewidthofthesymbolisdetermined.
All this informationcanbedeterminedbymeansofan imagingphotometeror imagingcolorimeterwithinfractionsofasecond. Inaddition, thereare image-processingoperationsspeciallyadapted to theseproblems.Forexample(O-)LEDsinthepicturecanbedetectedandseparatedautomatically.
Result dataLuminousintensitydistributions(LID)Raydataavailableinvariousformats(e.g.ASAP,SPEOS,RWR,Lucid-Shape,LightTools,Zemax)ProcessingandarchivingoftheLVKdatainaphotometricdatabase(LumCAT)
Measurement of photometric objectsThemeasurement of photometric objects turns out to benecessaryforvarioustasks:• With respect to developmental aspects, the influenceofmodificationsmustbedetermined.Theaimistooptimizethephotometricparameters.
Its place in photometryThephotometricdataofluminaires/lampsaremeasuredbydifferenttypesofmeasuringdevices.Indoingso,theradiationoflightofluminariesisrecordedonthebasisofanevaluationfromdifferentobservationdirections.
The followingconventional typesofmeasuringdevices fordeterminingphotometricparameterscanbeclassified:AGoniophotometerwithrotatingmirrorBGoniophotometerbasedonluminancemeasuringcamerasCGoniophotometerwithlongmeasuringarmDLuminairerotatorOnlytypeB,goniophotometerbasedonluminancemeasuringcameras,isabletogeneratemeasuringdatafortheradiationcharacteristicsofgeometricallyexpandedmeasuringobjectsforthecalculationinthenearfieldjustasfortheevaluationofluminancedistributionsonobjects.Themeasuringdataof the luminous intensitydistributions(LIDs)canbesaved inallcommonfileformats(EULUM-DAT,TM14,IES,Calculux)usingthephotometricdatabaseLumCAT.RaydataaremadeavailableintheformatsofthesimulationtoolsASAP,SPEOS,LightTools,Lucid-ShapeandZemax.Inaddition,alsocustomer-specificformatscanberealized
Ray model basic data of the RIGO 801Forluminairesimulations(e.g.calculationofreflectorsinheadlamps),fortheplanningofilluminationsystemsorforraytracingmethods(computersimulationoflivingspacesandthingslikethat),thedataoftheradiating/luminousobjectsarenecessary.The fulldescriptionof the radiationconditionsofasurfacerequires toindicatetheluminancedistributionLx,y,z,λ(ϑ,ϕ)inallsurfacepoints(x,y,z)Surfaceoftheobject.(Differingspectraldistributionsonthesurfaceitselfarenotconsideredhere.)Asasurfacecanbedescribedbytwoparametersz=f(x,y)-a4D-datafieldresultsL(ϑ,ϕ,x,y).
Thedata records thusobtainedpermit theuser todescribeobjectsusing raymodels.Raymodelsarealreadyused inmanysimulationprograms.However, theyareoftenbasedonsynthetic,mathematicallydefinedmodelsfortheluminousobjects(e.g.descriptionofafilament).
Application of the measuring dataThemeasurementof the4D-luminancedistributionofmeasuringobjects opensupnewpossibilities of describingphotometricobjects, integrating themintosimulationprograms,andobtainingdata fordocumentationandplanning.On thebasisof the raymodel,abignumberofphotometricparametersof luminaires/lampscanbedeterminedusingtheRIGO801device.• Conventionalplanningdata(LID)forlightplanning• Datafornear-fieldapplications(NearfieldLID)• Luminancedistributions• Data for programs for the computerassisted simulationofcomplexphotometricassemblies
Planning of illumination systemsThenear-fieldgoniophotometertypeRIGO801makesconventionalluminous intensitydistribution fittings (LID)of luminaires/ lampsavailable.
Atpresent, standardprograms for theplanningof illuminationsystemsmostly use the luminous intensity fittings (LID) ofluminairesasstartingdata.However, in theevaluationusingLID,theluminaires/lampsareregardedonlyaspointmeasuringobjects,whichisfullysufficientformanycasesofapplication.
Full description of the luminous objectsForallthosetaskswherethedataobtainedasmentionedabovearenotsufficient,thecompletemeasuringdatacanbeused.Thisconcerns,forexample,theraytracingmethodsforreflectorcalculationsondownlightsorheadlamps, theraycalculationofcomplex illuminationsystems(e.g.projec tors)andothers.Thedatarecordsavailableaftermeasurementcanbeconvertedintothoseformatsusedbythefollowingsimulationorevaluationprograms.
Thecomponentsmentioned in thisdocumentsuchasa.c.voltagestabilizer, laboratorypowersupply,multipurposemeterandcontrolpanelcanbe installed in thegoniometerswitchcubicleandcableduponcustomer’srequest.
Working principleThestabilityoftheluminanceisrealizedthroughatemperaturecontrolwithaPeltierelementandaintensitycontrolwithaspectralmatchedphotoelement.OnlyselectedLED'sin5mmhousingsareapplied.
Fields of applicationCCFmeasurementsForthedeterminationofacolourcorrectionfactor(CCF)foraspecificspectralpowerdistribution(SPD)youhavetomeasureataknownluminanceLforthisSPD.ThequotientofthemeasuredluminancevalueandtheknownluminancevalueoftheLEDlightsourceiscalledCCFandcanbeusedasacorrectionfactorforallfurthermeasurementsatthisandsimilarSPD's.
SystemadjustmentandcalibrationCapturingof10-15differentLEDlightsourceswithacolourcamera.Calculating a transformationmatrixfor the colour camerawith the helpof a balanced calculation (e.g.GLS)andusing themeasureddataand thecalibrateddataoftheLEDlightsources.