[1]陈俄振,郭震宁,智佳军.LED扩展光源均匀照明的透镜设计[J].华侨大学学报(自然科学版),2013,34(6):632-635.[doi:10.11830/ISSN.1000-5013.2013.06.0632]
 CHEN E-zhen,GUO Zhen-ning,ZHI Jia-jun.Lens Design with Uniform Illumination of the LED Extended Sources[J].Journal of Huaqiao University(Natural Science),2013,34(6):632-635.[doi:10.11830/ISSN.1000-5013.2013.06.0632]
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LED扩展光源均匀照明的透镜设计()
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《华侨大学学报(自然科学版)》[ISSN:1000-5013/CN:35-1079/N]

卷:
第34卷
期数:
2013年第6期
页码:
632-635
栏目:
出版日期:
2013-11-20

文章信息/Info

Title:
Lens Design with Uniform Illumination of the LED Extended Sources
文章编号:
1000-5013(2013)06-0632-04
作者:
陈俄振 郭震宁 智佳军
华侨大学 信息科学与工程学院, 福建 厦门 361021
Author(s):
CHEN E-zhen GUO Zhen-ning ZHI Jia-jun
College of Information Science and Engineering, Huaqiao University, Xiamen 361021, China
关键词:
光学设计 发光二极管 扩展光源 透镜 边缘光线原理
Keywords:
optical design light-emitting diode extended source lens edge-ray theory
分类号:
TN312.8;O439
DOI:
10.11830/ISSN.1000-5013.2013.06.0632
文献标志码:
A
摘要:
提出一种用发光二极管(LED)扩展光源设计旋转对称透镜的简易方法,并建立旋转对称的光学模型.根据边缘光线原理,反向延长扩展光源边缘与透镜边缘的光线交于一点,定义该点作为点光源,并结合Snell折射定律矢量形式和逐次逼近法,建立光源与接收面的对应关系.设定透镜自由曲面的初始点坐标,用Matlab软件逐一算出其余各个点坐标,最后连接各个点成为透镜的自由曲面,通过Light Tools光学软件建模与蒙特卡罗光线追击.结果表明:此方法设计出的旋转对称透镜可在1 m距离处,实现半径为578 mm的均匀圆形光斑.
Abstract:
This paper propose a simple design method for rotationally symmetric lens which use light-emitting diode(LED)extended sources and establish the rotationally symmetric optical model. According to the edge-ray theory,reversedly extend the ray lines of the surce edge and the lens edge to intersect at one point,then define this point as point source. Combining with the snell law of refraction in vector form and the successive approximation method, establish the corresponding relation between the light source and the receiving surface, then set the initial point position of the lens free-form surface,and calculate out the other points position by matlab software,at last, connect all the points in turn and form the lens free-form surface. Through the Light Tools software modeling and ray tracing by monte carlo theory, the results show that the method of designing the rotationally symmetric lens can realize a uniform circular facula which redius is 578 mm in the 1 m distance to the lens.

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备注/Memo

备注/Memo:
收稿日期: 2012-12-15
通信作者: 郭震宁(1958-),男,教授,主要从事半导体发光器件及光学设计的研究.E-mail:znguo2003@yahoo.com.cn.
基金项目: 福建省自然科学基金资助项目(2010J01338); 福建省科技计划重点项目(2009H0034); 福建省厦门市科技计划重点项目(3502Z20093033)
更新日期/Last Update: 2013-11-20