Optimization and integration of LED array for uniform illumination distribution

A design method for light-emitting diode （LED） array is proposed to achieve a good uniform illumination distribution on target plane. By using random walk algorithm, the basic LED array modules are optimized ftrstly. The optimized basic arrays can generate uniform illumination distribution on their...

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Bibliographic Details
Published inOptoelectronics letters Vol. 10; no. 5; pp. 335 - 339
Main Author 吴定会 王加文 苏宙平
Format Journal Article
LanguageEnglish
Published Heidelberg Tianjin University of Technology 01.09.2014
Subjects
Lasers
LED阵列
Optical Devices
Optics
Photonics
Physics
Physics and Astronomy
优化整合
发光二极管
均匀性
均匀照明
照度分布
设计方法
随机游走
Large Array
Sity Distribution
Optic Express
Uniform Illumination
General Array
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ISSN1673-1905
1993-5013
DOI10.1007/s11801-014-4096-5

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Summary:A design method for light-emitting diode （LED） array is proposed to achieve a good uniform illumination distribution on target plane. By using random walk algorithm, the basic LED array modules are optimized ftrstly. The optimized basic arrays can generate uniform illumination distribution on their target plane. The optimized basic LED array mod- ules can be integrated into a large LED array module with more than tens of LEDs. In the large array, we can select a sub-array with K LEDs （K〉7）, which can produce the good uniform illumination distribution. By this way, we design two LED arrays which consist of 21 and 25 LEDs, respectively. The 21-LED array and 25-LED array can generate uniform illumination distributions with the uniformities of 95% and 90%, respectively.
Bibliography:WU Ding-hui , WANG Jia-wen , and SU Zhou-ping （ 1. School of lnternet of Things Engineering, Jiangnan University, Wuxi 214122, China 2. School of Science, Jiangnan University, Wuxi 214122, China 3. Shanghai Key Laboratory of All Solid-State Laser and Applied Techniques, Shanghai 201800, China）
12-1370/TN
A design method for light-emitting diode （LED） array is proposed to achieve a good uniform illumination distribution on target plane. By using random walk algorithm, the basic LED array modules are optimized ftrstly. The optimized basic arrays can generate uniform illumination distribution on their target plane. The optimized basic LED array mod- ules can be integrated into a large LED array module with more than tens of LEDs. In the large array, we can select a sub-array with K LEDs （K〉7）, which can produce the good uniform illumination distribution. By this way, we design two LED arrays which consist of 21 and 25 LEDs, respectively. The 21-LED array and 25-LED array can generate uniform illumination distributions with the uniformities of 95% and 90%, respectively.
ISSN:1673-1905
1993-5013
DOI:10.1007/s11801-014-4096-5