光電應用高效率擴散板設計(下)

1、271 2009/07134 The Study of High Efficiency Diffuser: Design, Fabrication and Measure (II)( )J. S. Lin1 C. S. Cheng2 C. L. Lai3 Y. C. Peng2 (MSL/ITRI) 1 2 3 LED 1. 2. TIR (Total Internal Reflector) (1) LED 2545 LED LED LED (Lambertian) LED TIR 90% 6 LEDTIRLED271 2009/07(2)PLPL 30 30 50 60 69.11% 81.

2、2% 50%580nm580nm.tw1120mm1120mm.tw(3)LEDLED Lambertian LED LED3M PL135271 2009/07136Calla LED (11) LED LED 50° 3. LED Calla LED Total-Illuminance Map for Incident FluxPolar Candela Distribution PlotOB Surface 1 Global CoordinatesUsing Missed Rayslux250250200150100500-50-100-150-200-250250900900

3、85015016017018017016015045.00.0cd850800200200800140750130130135.090.0750700150150700120120650650100100600110110600)s550re5050550100100t50090500emi0045090450lli40080400M(-50-5035080 350Y3007070300-100-10025060250-150-15020050602001504050150-200-2001003010050203040100102050-250250200150100500-50-100-1

4、50-200-250-25000-300-200-2000100200300X (Millimeters)Min: 9.0123e-014 cd, Max: 158.88 cd, Total Flux: 315.73 lmEfficiency: 0.58253-89373 RaysIlluminance Min: 75.756 lux, Max: 892.73 lux, Ave: 463.98 lux,HarizontalVarticalRMS: 118.96, Total Flux: 115.99 lm 27894 Incident Rays LED .tw271 2009/07LED IS

5、-LI TE(12) FPMS(12) Camera/Mirror 12 30 60Combination ViewsEntire Inner Surfaceof Sphere0°Photo Detector-90°90°RotateControllerMechanismRadiant Imaging IS-LI TERadiant Imaging FPMS .tw137271 2009/07138(13) 12LED (1) LED LEDLEDLED FPMS LEDLED FPMS 3D Candela Plot .tw271 2009/07(2)PL 70%FPMS (3)LEDLED 50 LED 50