LED灯具光通量检测技术的分析研究

Research on luminous flux measurement technology for the LED luminaires

针对准确检测LED灯具光通量这一特殊问题,阐述了现有的三种光通量检测方法,包括积分球法,光强积分法、照度积分法。进一步分析了光通量测试设备——积分球法和分布光度计的测试原理,最后研究了基于照度积分法的分布光度计的5种结构形式,指出了不同类型的分布光度计的优缺点。研究结果对准确选择LED灯具光通量检测设备具有一定的指导意义。

With regard to measuring the total luminous flux of the LED tummatre plec,ac,~v, three kinds of luminous flux testing methods are put forward, including integrating sphere, light intensity integrating, illuminance integrating. Furthermore, the measuring principle of the integrating sphere and goniophotometer are analyzed. At last five different types of goniophotometer based on illuminance integrating principle are researched, and the advantages and disadvantages are pointed out. The research results provide direct guidance to select measuring devices for the total luminous flux of the LED luminaire.