RGB-LED光源的峰值波长对其显色性的影响  

Effect of Peak Wavelengths of RGB-LED Light Source on Its Color Rendering Property

作　　者：马瑞青 Ma Ruiqing(College of Information and Computer,Taiyuan University of Technology,Taiyuan,Shanxi 030024,China)

机构地区：[1]太原理工大学信息与计算机学院,山西太原030024

出　　处：《激光与光电子学进展》2021年第23期395-402,共8页Laser & Optoelectronics Progress

基　　金：国家自然科学基金(61705011);山西省应用基础研究计划青年基金(201901D211068)。

摘　　要：RGB-LED光源的显色质量主要通过显色指数、色域、观察者的颜色辨别能力和物体颜色的饱和度等指标来评价,然而从标准照明体D65变化到一个真实RGB-LED光源(色温为6500 K),某一Munsell色卡所对应的色度不匹配区域还未得到深入研究。首先分别改变蓝、绿、红色LED光源的峰值波长,通过高斯分布函数来生成模拟的RGB-LED光源光谱;然后计算从标准照明体D65变化到一个真实RGB-LED光源(色温为6500 K),12个Munsell色卡所对应的色度不匹配区域;最后分析5个真实的RGB-LED光源上的数据。研究结果表明,色卡所对应的色度不匹配区域与RGB-LED光源的一般显色指数呈负相关,即RGB-LED光源的一般显色指数越大,色卡所对应的色度不匹配区域越小。The color rendering quality of RGB-LED light source is mainly evaluated by color rendering index,gamut,color discrimination ability of observer and object color saturation.However,the possible chromaticity mismatch range that all spectral reflectances metameric to one surface under standard illuminant D65 would form under a RGB-LED light source with correlated color temperature 6500 K has not been thoroughly studied.First,the peak wavelengths of blue,green,and red LED light source were changed respectively,and the simulated RGBLED light source spectrum was generated by Gaussian distribution function.Then,chromaticity mismatch areas under RGB-LED light source formed by all spectral reflectances metameric to 12 Munsell surfaces under standard illuminant D65 were calculated.Finally,the data of five real RGB-LED light sources were analyzed.The results show that the chromaticity mismatch region corresponding to the Munsell color card was negatively correlated with the general color rendering index of RGB-LED light source,that is,the larger the general color rendering index of RGB-LED light source,the smaller the chromaticity mismatch region corresponding to the Munsell color card.

关 键 词：视觉光学 RGB-LED光源 一般显色指数 同色异谱体体积 峰值波长 

分 类 号：O432[机械工程—光学工程]