投射式LED前照灯色度不均匀性分析  

Analysis of Spatial Chromaticity Unevenness of Projection of LED Automotive Headlights

作　　者：康乐 李海涛 Kang Le;Li Haitao(CCIC WEST Testing Co.,Ltd.)

机构地区：[1]中检西部检测有限公司

出　　处：《摩托车技术》2021年第2期48-51,共4页Motorcycle Technology

摘　　要：按GB 25991—2010标准对投射式LED汽车前照灯进行实验,发现标准要求测试点的色坐标值与平均值差异大于10%,测试点的红光成分与平均值差异大于15%,存在着严重的色空间分布不一致性。研究表明产生这种现象的原因在于LED光源体积小、光谱成分单调两方面,解决这一问题可以从光源或者配光方式着手。According to the GB25991-2010,Experimental results show that color coordinate values of test points differ by more than 10%of the mean,and the proportion of red light of test points differ by more than 15%of the mean.There is a serious problem of uneven spatial distribution of color LED headlamp.Studies have shown that this phenomenon occurs because the LED light source is small and monotonous spectral components,to solve this problem can begin from light sources or light distribution type.

关 键 词：LED前照灯 投射式系统 显色性 红光成分 色坐标 

分 类 号：U463.651[机械工程—车辆工程]