LED 光学设计与应用ppt课件.ppt

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1、LED的光學設計與應用AgendaClassificationofopticsOpticalSoftwareHowtobuildlightsourceLEDapplicationClassificationofOpticsClassificationofOpticsRayOptics---*thedirectionandlocationoflightrays*imageformationWaveOptics---*thepositionandtimedependentlightwaves*scalartheoremElectrom

2、agneticOptics---*mostcompleteinclassicalopticsQuantumOptics*interactionbetweenlightandmediumRayOptics-ApplicationImageformation–camera、projector、eyeglasses、telescope…etc.Opticalcomponent–lens、mirror、prism…etc.Illuminationsystem–lamp、lightpipe、backlight…etc.WaveOptics-

3、ApplicationHolographyopticsDiffractionopticalcomponentInterferometerThinfilmtechniqueFourieropticsElectromagneticOptics-ApplicationFiberopticsPolarizationcontrolDetectsystemOpticalstorageQuantumOptics-ApplicationLasersystemModulationSignalprocessing&analysisBiotechnol

4、ogyOpticalSoftwareOpticalSoftwareSequentialRay-tracingOSLOZEMAXCodeVNon-SequentialRay-tracingASAPLight-ToolsTrace-ProSequentialraytracingRaysaretracedfromtheobjectsurfacetoeachsurfaceinaspecificsequentialorder.Opticalsystemssuchascameralenses,telescopes,andmicroscopes

5、arewelldescribedbythismodel.SequentialraytracingNon-sequentialraytracingManyimportantopticalsystemscannotbewelldescribedbythesequentialraytracemodel,suchascomplexprisms,lightpipes,illuminationsystems,facetedreflectors,orobjectsofarbitraryshape.Also,scatteringandstrayl

6、ightcannotusuallybemodeledwithsequentialanalysis.Non-sequentialraytracingBeforestartLightcharacteristicGlasspropertyRadiometryandphotometryColorimetrySpecificationandPerformanceLightcharacteristicReflect/Transit/RefractScatteringPolarizationCoherenceReflect/Transit/Re

7、fractScatteringScatteringsbyparticles–Rayleighscattering–Miescattering•Scatteringbysurface•Nonlineareffects–Raman–…Polarization&CoherenceCoherenceInthecaseofillumination,itisnotsoworriedaboutthesourcecoherenceSourceisusuallyincoherent,partiallycoherent,orcoherent,ifus

8、inglasersThecoherencewillinfluenceresolutioncapability,ifyouareconsideringadiffraction-limitsystemTheissuebelongstothesubjec