Design of TIR optics generating the prescribed irradiance distribution in the circle region

被引：41
作者：
Moiseev, Mikhail A. [1 ,2 ,3 ]
Doskolovich, Leonid L. [1 ,2 ,3 ]
机构：
[1] Russian Acad Sci, Image Proc Syst Inst, Samara 443001, Russia
[2] Samara State Aerosp Univ, Samara 443086, Russia
[3] LED Opt Design LLC, Samara 443001, Russia
来源：
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION | 2012年 / 29卷 / 09期
基金：
俄罗斯基础研究基金会;
关键词：
LENS;
D O I：
10.1364/JOSAA.29.001758
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We present the method for computation of highly effective total internal reflection (TIR) optics for LED-based illumination systems. The computation problem is reduced to the integration of several explicit independent first-order differential equations. Two designs of TIR optics are considered and compared: with flat and with aspherical upper surface. The dependence of nonuniformity of generated irradiance distribution on the size of the light source is studied for both designs numerically. It is shown that point source approximation is acceptable in cases when the size of the light source is 5 (or more) times less than the distance to the inner surface of the optical element. (C) 2012 Optical Society of America
引用
收藏
页码：1758 / 1763
页数：6
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