Frontiers of Optoelectronics, 2016, 9 (2): 330, 网络出版: 2016-10-21  

Simple dynamic energy core equivalent rays method to design freeform surface for extended source

Simple dynamic energy core equivalent rays method to design freeform surface for extended source
作者单位
Tsinghua National Lab on Information Science and Technology, Department of Electronic Engineering, Tsinghua University, Beijing 100084, China
摘要
A simple method is proposed to design freeform surface for Lambertian extended source. In this method, it can take advantage of the designing method for point source via substituting each incident ray with a dynamically calculated equivalent ray. For each facet on the freeform surface, the equivalent ray emits from the energy weighted average-emitting-position for the corresponding incident beam, and redirects into the direction which is determined by a source-to-target mapping. The results of the designing examples show that the light distributions’ uniformities can be improved by this method, e.g., even the improvement of 59% can be achieved.
Abstract
A simple method is proposed to design freeform surface for Lambertian extended source. In this method, it can take advantage of the designing method for point source via substituting each incident ray with a dynamically calculated equivalent ray. For each facet on the freeform surface, the equivalent ray emits from the energy weighted average-emitting-position for the corresponding incident beam, and redirects into the direction which is determined by a source-to-target mapping. The results of the designing examples show that the light distributions’ uniformities can be improved by this method, e.g., even the improvement of 59% can be achieved.

Kun WANG, Yanjun HAN, Hongtao LI, Yi LUO, Zhibiao HAO, Lai WANG, Changzheng SU, Bing XIONG, Jian WANG. Simple dynamic energy core equivalent rays method to design freeform surface for extended source[J]. Frontiers of Optoelectronics, 2016, 9(2): 330. Kun WANG, Yanjun HAN, Hongtao LI, Yi LUO, Zhibiao HAO, Lai WANG, Changzheng SUN, Bing XIONG, Jian WANG. Simple dynamic energy core equivalent rays method to design freeform surface for extended source[J]. Frontiers of Optoelectronics, 2016, 9(2): 330.

关于本站 Cookie 的使用提示

中国光学期刊网使用基于 cookie 的技术来更好地为您提供各项服务,点击此处了解我们的隐私策略。 如您需继续使用本网站,请您授权我们使用本地 cookie 来保存部分信息。
全站搜索
您最值得信赖的光电行业旗舰网络服务平台!