Rectangular illumination using a secondary optics with cylindrical lens for LED street light

被引：42

作者：

Chen, Hsi-Chao ^{[1
,2
]}

Lin, Jun-Yu ^{[2
]}

Chiu, Hsuan-Yi ^{[2
]}

机构：

[1] Natl Yunlin Univ Sci & Technol, Dept Elect Engn, Yunlin 64002, Taiwan

[2] Natl Yunlin Univ Sci & Technol, Grad Sch Optoelect, Yunlin 640, Taiwan

来源：

OPTICS EXPRESS | 2013年 / 21卷 / 03期

关键词：

DESIGN; PHOTOTHERAPY; COMPACT;

D O I：

10.1364/OE.21.003201

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The illumination pattern of an LED street light is required to have a rectangular distribution at a divergence-angle ratio of 7:3 for economical illumination. Hence, research supplying a secondary optics with two cylindrical lenses was different from free-form curvature for rectangular illumination. The analytical solution for curvatures with different ratio rectangles solved this detail by light tracing and boundary conditions. Similarities between the experiments and the simulation for a single LED and a 9-LED module were analyzed by Normalized Cross Correlation (NCC), and the error rate was studied by the Root Mean Square (RMS). The tolerance of position must be kept under +/- 0.2 mm in the x, y and z directions to ensure that the relative illumination is over 99%. (C) 2013 Optical Society of America

引用

页码：3201 / 3212

页数：12

共 20 条

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[Anonymous], AM NAT STAND PRACT R

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