Uncertainty analysis in the spectroradiometric measurement for the color of LEDsPAN Jian-gen, YUE Hong-xuan, SHEN Hai-ping, WANG Wan-liang 1. EVERFINE PHOTOE-INFO CO. , LTD. , Hangzhou 310053, China; 2. College of Information Engineering, Zhejiang University of Technology, Hangzhou 310012 ,China; 3. State Key Lab of Modem Optical Instrumentation, Zhejiang University,Hangzhou 310027,ChinaAbstract:The measurement uncertainties in the color measurement of LEDs by spectroradiometric method are analysed,and the analysis focuses on the uncertainty contributions of spectral power distribution and wavelength uncertainty. Several typical results are given, The results show that 5% relative uncertainty of spectral power distribution and a 0.5 nm wavelength uncertainty are enough for the measurement for LED color with high accuracy of 0. 001.[著者文摘]