Design of a free-form lens for LED light with high efficiency and uniform illumination

被引：16

作者：

Anh, Nguyen Doan Quoc ^{[1
]}

Lai, Min-Feng ^{[1
]}

Ma, Hsin-Yi ^{[2
]}

Lee, Hsiao-Yi ^{[1
]}

机构：

[1] Natl Kaohsiung Univ Appl Sci, Dept Elect Engn, Kaohsiung 80778, Taiwan

[2] Minghsin Univ Sci & Technol, Dept Ind Engn & Management, Hsinchu 30401, Taiwan

来源：

APPLIED OPTICS | 2014年 / 53卷 / 29期

关键词：

OPTICS;

D O I：

10.1364/AO.53.00H140

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A free-form secondary lens is proposed to optimize an LED light. Based on Snell's law, energy conservation law, and a Monte Carlo ray-tracing algorithm, the surface contour of the free-form lens can be determined according to the requirements of an LED light. Optical experimental results show that an optical efficiency of 95.69% can be achieved by the lens, of which the illumination uniformity 0.317 is higher than the commercial illumination uniformity 0.259. The lens does not need the help of a white ring holder, so the cost of the LED light can become effective. (C) 2014 Optical Society of America

引用

页码：H140 / H145

页数：6

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