Optical design of color light-emitting diode ring light for machine vision inspection
Optical design of color light-emitting diode ring light for machine vision inspection
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DOI：
10.1117/1.3567053
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发表时间：
2011-04-01
影响因子：
1.3
通讯作者：
Xu, Yan
中科院分区：
文献类型：
--
作者：
Dong, Jing-tao;Lu, Rong-sheng;Xu, Yan
均匀的辐照度和颜色可调性是机器视觉检测系统照明设计的关键特征。通过引入一个简单的模型来简化倾斜发光二极管（LED）非旋转对称辐照度分布的复杂性，提出了一种简单实用的倾斜LED环形阵列近场均匀辐照度设计工具。基于混色分析模型，分析了RGB LED环形阵列的颜色分布和颜色均匀性。根据理论分析、模拟结果和设计示例，实用设计工具提供了一种简单的方法来估计RGB LED环形阵列的性能，并且可以被认为是一个起点，以减少必须使用现实LED模型的精确设计的计算时间。(C)2011年，美国光电仪器工程师学会（SPIE）。[DOI 10.1117/1.3567053]
Uniform irradiance and color adjustability are the key features in the design of lighting for machine vision inspection systems. A simple and practical design tool of angled light-emitting-diode (LED) ring arrays for uniform near-field irradiance has been developed by introducing a simple model to simplify the complexity of nonrotational symmetric irradiance distribution of angled LEDs. The color distribution and color uniformity of the ring array assembled with RGB LEDs are analyzed based on the analytical model of color mixing. According to the theoretical analysis, the simulated results, and the design exemplifications, the practical design tool offers an easy way to estimate the performance of an RGB LED ring array and can be considered as a starting point to reduce the computation time for exact designs that must use a realistic LED model. (C) 2011 Society of Photo-Optical Instrumentation Engineers (SPIE). [DOI:10.1117/1.3567053]