光电技术应用, 2016, 31 (3): 13, 网络出版: 2016-08-29  

实现小发散角圆形照明的TIR透镜设计

TIR Lens Design for Circular Illumination with Small Divergence Angle
作者单位
海军工程大学 兵器工程系,武汉 430033
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 mm LED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。
Abstract
LED light source can be collimated by total internal reflection (TIR) structure which is widely used in LED secondary optic system design. By adjusting the total reflection surface of TIR structure, the circular illumination with small divergence angle is realized. The lenses with 5° and 10° half divergence angle are designed and the simulation experiments are performed. Simulation results show that the expectation requirements can be met and half divergence angle is 5° and 10° respectively with a point source or a 1 mm×1 mm LED source. This method can also be applied to design the lens with small divergence angle.

刘典宏, 张晓晖. 实现小发散角圆形照明的TIR透镜设计[J]. 光电技术应用, 2016, 31(3): 13. LIU Dian-hong, ZHANG Xiao-hui. TIR Lens Design for Circular Illumination with Small Divergence Angle[J]. Electro-Optic Technology Application, 2016, 31(3): 13.

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