通用照明白光LED器件显色性分析  

Investigation of Color Rendering of White LEDs in General Lighting Systems

作　　者：张国芳 蔡连章 ZHANG Guofang;CAI Lianzhang(Foshan Nationstar Optoelectronics Co.,Ltd.,Foshan 528000,China)

机构地区：[1]佛山市国星光电股份有限公司,广东佛山528000

出　　处：《中国照明电器》2020年第9期6-11,共6页China Light & Lighting

基　　金：佛山市核心技术攻关项目(1920001000724)。

摘　　要：基于通用照明领域常用的LED器件光谱数据,通过显色指数(Ra)和IES TM-30色保真指数(Rf)和色域指数(Rg)计算方法,详细分析了三大系列(R70、R80、R90)典型相关色温器件光源的色保真指数、色域指数及色矢量图。研究发现:各系列光源色保真指数与显色指数对比有一定的稳定性差值;R80系列比R70和R90系列相差小。通过色域指数和颜色矢量图分析,R70、R80两大系列对较多颜色显色性能较差;而R90系列光源色域指数相对较高,在100左右,且对较多颜色显色性能较强,特别是红、黄绿、蓝色等。以上结果对于照明灯具设计和器件选型具有一定的参考意义。In this study,based on the spectral data of LED devices commonly used in the general lighting,a detailed calculation and analysis of the color rendering of the spectral colors of the three series(R70,R80,R90)of typical correlated color temperature(CCT)devices are made,in accordance with the color rendering index(CRI)calculation method and the IES TM-30 standard.The research found that the difference between the color fidelity index and the CRI of each series of light sources has a certain stability,and that the difference of R80 series are smaller than the R70 and R90 series.The analysis of color gamut index and color vector diagram shows that the R70 and R80 series have poor color rendering performance for many colors;while the R90 series has a relatively high color gamut index of about 100,and has strong color rendering performance for many colors,especially red,yellow-green,and blue.The above results are useful for LED lighting design and the selection of devices.

关 键 词：LED器件 光谱 显色指数 色保真指数 色域指数 相关色温 

分 类 号：TM923.0[电气工程—电力电子与电力传动]