封装透镜尺寸对直插型LED光强分布的影响  

Effect of Dimensions and Geometry of Packaging Lens on LED Luminescence Intensity Distribution

作　　者：周凯宁[1] 周海燕[1] 周贤菊[1] 李登峰[1] 

机构地区：[1]重庆邮电大学数理学院,重庆400065

出　　处：《重庆与世界（学术版）》2013年第8期101-104,共4页THE WORLD & CHONG QING

基　　金：重庆高等教育教学改革研究项目(09-3-091);重庆邮电大学教改项目(XJG1209)

摘　　要：研究了封装透镜的几何尺寸对LED灯发光强度及分布的影响。实验采用同种芯片和封装胶作为材质,制作了两种不同几何尺寸封装透镜的直插型LED灯。使用光强分布测试系统和0.3m积分球,对两种灯珠的发光强度、光强分布角、光强空间分布和光通量进行了测试。对于两种封装透镜,给出了两种配光模型,解释了不同尺寸透镜对LED配光性能的影响。This paper mainly researches the influence of the geometric dimensions of the lens on the LED light intensity and distribution. LED of 2 different package models are prepared with same LED chips and package resin. Under the same electrical parameters,the light intensity distribution and luminous flux of two models are detected respectively,using luminescence intensity distribution measurement equipment and 0. 3m integrating sphere. The reasons of the different luminescence intensity distribution are discussed. The work provides information for future work of second design of luminescence intensity distribution.

关 键 词：直插型LED 封装透镜 几何形状 光强分布 光通量 

分 类 号：TN312.8[电子电信—物理电子学]