位置和角度对积分球测量LED成品灯的影响

摘要

Due to the non-uniformity of the LED light source, there still isn ’ t any available measuring method of colorimetric characteristics of LEDs and finished product lamps. In this paper, the LED’ s colori⁃metric characteristics was measured by integrating sphere, and the LED was placed in different positions and different angles at the central position. Next, one and the same LED’ s colorimetric characteristics was meas⁃ured by distribution photometer. Through comparative analysis of measuring results by two methods, it turned out that it’ s viable that measure colorimetric characteristics of LEDs by integrating sphere efficiently after ef⁃fective compensation, and relevant suggestions on measuring methods were put forward.%由于LED光源发光的不均匀性，目前对LED及其成品灯的光色特性测量，仍没有有效的测试方法。文中将LED放在不同位置和中心不同朝向角度，采用积分球进行光色特性测量。然后采用分布光度计对同一LED／COB 天花灯的相关光色特性进行测量。两种测试系统的测量结果表明，通过有效补偿，使用积分球快速测量LED成品灯的光色参数是可行的，并为其测试方法提出相关建议。