发光二极管峰值波长偏移对色度的影响  

Experimental design of measuring the effect of peak wavelength shift of LED on chrominance

作　　者：王瑗[1] 潘葳[1] 徐如凤[1] 周红[1] 王锦辉[1] 

机构地区：[1]上海交通大学物理与天文系,上海200240

出　　处：《物理实验》2015年第2期8-11,共4页Physics Experimentation

摘　　要：利用可调恒流源控制彩色LED发光,采用多道光谱仪测量LED的光谱特性,得到峰值波长随工作电流的变化产生的偏移,并计算了由此而引起的色度值变化.LED＇s lighting was controlled by adjustable constant current source. The LED＇s spec tra were measured by multichannel spectrometer. by the normal working current was obtained, and calculated. The peak wavelength shift of colored LED induced the corresponding variation of the chrominance was

关 键 词：发光二极管 峰值波长偏移 色度学 

分 类 号：O433.1[机械工程—光学工程] O432.3[理学—光学]