摘要
TIR结构可准直LED光,因此被广泛应用于LED二次光学系统设计。通过调整TIR结构的全反射面,可以实现不同小发散角的圆形照明。设计了半发散角为5°和10°的透镜并进行了仿真验证。仿真结果表明,当采用点光源或者1 mm×1 mmLED光源时,半发散角都分别能满足预期为5°和10°。此方法同样适用其他小发散角透镜的设计。
LED light source can be collimated by total internal reflection（TIR） structure which is widely usedin LED secondary optic system design. By adjusting the total reflection surface of TIR structure, the circular illumi-nation with small divergence angle is realized. The lenses with 5° and 10° half divergence angle are designed andthe simulation experiments are performed. Simulation results show that the expectation requirements can be met andhalf divergence angle is 5° and 10° respectively with a point source or a 1 mm×1 mm LED source. This method canalso be applied to design the lens with small divergence angle.
出处
《光电技术应用》
2016年第3期13-16,共4页
Electro-Optic Technology Application
关键词
非成像光学
照明光学
几何光学
发散角
non-imaging optics
illumination optics
geometric optics
divergence angle
