光子学报, 2017, 46 (1): 0112004, 网络出版: 2017-02-09
基于光源近场模型的LED光学扩展量测量方法
Measurement Method of LED Etendue Based on Near-field Source Model
非成像光学 光学扩展量 光源近场 发光二极管 光学设计 Non-imaging optics Etendue Light source near-field Light-emitting diode Optical design
摘要
基于精确的LED光源近场模型, 提出了一种LED光学扩展量测量方法.通过追迹LED近场光源模型中的光线数据, 可获得LED光功率关于光学扩展量的关系曲线, 直观反映出LED光源的光学扩展量特性和光能利用率等信息.以紫外曝光系统中的UV-LED阵列面光源为例, 对三款不同型号的UV-LED进行了实际测量.通过测量得到的光学扩展量和光能利用率曲线, 可以对UV-LED的光束质量作出判断, 并为阵列面光源的优化设计提供帮助.
Abstract
A method for measuring the étendue of LED was proposed based on the near-field model of the LED source. The curve of luminous power on étendue can be obtained by tracing rays data in LED near-field moled, which can directly reflect the étendue characteristics and the energy efficieny of LED source. Taking the UV-LED array surface source in the exposure system as an example, the actual measurement of the three different models of UV-LED were carried out. The designer can make a judgment on the UV-LED beam quality by the étendue and energy efficiency curve, which can provide help for the optimization design of the UV-LED array surface source.
桂立, 尹韶云, 蔡文涛, 孙秀辉, 杜春雷, 丁学专. 基于光源近场模型的LED光学扩展量测量方法[J]. 光子学报, 2017, 46(1): 0112004. GUI Li, YIN Shao-yun, CAI Wen-tao, SUN Xiu-hui, DU Chun-lei, DING Xue-zhuan. Measurement Method of LED Etendue Based on Near-field Source Model[J]. ACTA PHOTONICA SINICA, 2017, 46(1): 0112004.
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