半导体光电, 2012, 33 (3): 334, 网络出版: 2012-06-25
实现大范围均匀照明的LED透镜二次光学设计
Secondary Optical Design for Light Emitting Diodes Lens with Wide Range and High Uniformity Illumination
摘要
提出了一种新的、利于实施计算的实现大范围均匀照明的LED灯具透镜设计方法。基于能量守恒定理和光线折射Snell定理,通过Matlab编程计算出自由曲面透镜坐标点。借助CAD软件和光学模拟软件Tracepro,模拟了自由曲面透镜的具体应用,在光源高为3m,接收面直径为10m的圆形照明区域,得到了均匀度达80%以上的照度分布,该设计可以应用在商场、工厂等室内照明灯具上。
Abstract
Proposed is a new and accessible method to design LED free-form lens with wide range and high uniformity illumination. Based on the energy conservation law and light refraction Snell's law, free-form lens are calculated by the Matlab programming. CAD software is used to compose the solid model of free-form lens. With optical simulation software Tracepro, ray tracing is used to verify the secondary optical design with the height of lighting source as 3m and the diameter of circular receiving surface as 10m. The illumination uniformity higher than 80% is realized.
芦佳宁, 余杰, 童玉珍, 张国义. 实现大范围均匀照明的LED透镜二次光学设计[J]. 半导体光电, 2012, 33(3): 334. LU Jianing, YU Jie, TONG Yuzhen, ZHANG Guoyi. Secondary Optical Design for Light Emitting Diodes Lens with Wide Range and High Uniformity Illumination[J]. Semiconductor Optoelectronics, 2012, 33(3): 334.