›› 2016, Vol. 29 ›› Issue (1): 5-.

• 论文 • 上一篇    下一篇

基于TIR结构LED准直透镜的设计与实现

王未未   

  1. (江苏大学 机械工程学院,江苏 镇江 212013)
  • 出版日期:2016-01-15 发布日期:2016-02-25
  • 作者简介:王未未(1989—),女,硕士研究生。研究方向:光学系统设计。
  • 基金资助:

    国家自然科学基金资助项目(11204107)

Design and Application of LED Collimating Lens Based on TIR

WANG Weiwei   

  1. (School of Mechanical Engineering,Jiangsu University,Zhenjiang 212013,China)
  • Online:2016-01-15 Published:2016-02-25

摘要:

介绍了一种LED自由曲面准直透镜的设计方法,并运用该方法设计了一款基于全内反射,结构的准直透镜。对初始结构不断进行逼近,最终得到准直透镜的模型。透镜外径为35 mm,总高为21.5 mm。透镜匹配Cree公司XPE光源进行计算机模拟,效率高达84.8%,K值高达125.8 cd/lm。模拟应用于35 W的探照灯时,在100 m远处形成一个直径为8 m的圆形光斑,光斑中心照度高达60 lux。透镜实际样品被制作出后,经过测试,实际透镜的光束角为3.2°。此款透镜被用于实际探照灯灯具中。

关键词: TIR准直透镜, 光学设计, 自由曲面, TracePro

Abstract:

A design method for collimating LED lens with free surface is introduced and a practical collimating lens with the method based on TIR (Total Internal Reflection) is designed by approximating for the final 3D model successfully.The maximum diameter of the lens is 1 mm with a height of 2 mm.Computer simulation with the lens matched with CREE -XPE shows an efficiency of 84.8% and a K value of 125.8 cd/lm.With the lens applied to 35 W searchlight,a spot of a diameter of 8 m results with the spot center illumination up to 60 lux 100 m away 3.2°.Tests on the fabricated collimation lens show a beam angle of.The lens is used in the actual searchlights.

Key words: TIR collimating lens;optical design;freeform surface;TracePro

中图分类号: 

  • TN312+.8