摘要
基于多通道LED光源以及CIE评价日光模拟器光谱质量的标准,提出了一种适用于CIE日光照明体D50、D55、D65和D75的光谱匹配方法。针对实际难以获得精确的光谱匹配问题,本方法可兼顾光谱匹配精度和同色异谱性能。实验结果表明,4种匹配光谱的CIE 1976 UCS色品差均小于CIE标准规定的0.015;与仅以光谱匹配精度为目标的技术相比,该方法显著改善了匹配光谱的同色异谱指数质量等级以及显色性能。同色异谱质量等级由C级甚至D级均提高到了B级,CIE一般显色指数高达98,而特殊显色指数R9则更加显著地改善至优于94。
A spectral matching method for CIE daylight illuminants D50,D55,D65,and D75 was proposed based on the multichannel LED light sources along with the CIE standard for evaluating the spectral quality of a daylight simulator. In view of the fact that it is hard to realize accurate spectral matching, this method can consider spectral matching accuracy as well as metamerism degree simultaneously. The experimental results indicate that the CIE 1976 UCS chromaticity differences of the four matched spectra are less than 0. 015 as specified by CIE,and that this method can significantly improve the metamerism index quality grades and the color rendering properties of the matched spectra with comparison to the technique based only on spectral matching accuracy. The quality grades can be improved from the original C or even D grade to the present B level,meanwhile the CIE general color rendering indexes reach up to 98,and the special color rendering indexes R9 are more significantly upgraded to 94 or above.
作者
章夫正
徐海松
丰恒
ZHANG Fuzheng XU Haisong FENG Heng(State Key Laboratory of Modern Optical Instrumentation, College of Optical Science and Engineering, Zhejiang University, Hangzhou 310027, China)
出处
《照明工程学报》
2017年第2期23-27,共5页
China Illuminating Engineering Journal
基金
国家973计划(2013CB328802)
