实现均匀照明的LED系统设计方法

针对医用无影灯的应用要求，提出了一种利用非球面透镜实现对目标平面均匀照明的方法。基于能量守恒定律得到光源出射角与目标面之间的关系，利用Zemax的宏语言编写优化操作数使透镜优化满足上述关系，在非序列模式中对结果进行模拟和优化，并分别对透镜的前表面三种情况进行模拟，提出并模拟了LED球面阵列，并分析了角度及距离的偏移对照明均匀度的影响。结果表明，1 m距离处实现了直径为25 cm的平面内的均匀照明，均匀度（平均照度/最大照度）达到96%以上；球面阵列的设计可以满足无影灯的光分布要求，照明深度达到1 m。

Abstract

A new method that the target plance is uniformly illuminated with aspheric lens is proposed. Based on the energy conservation law, it can be figured out the angle between the light source and the target surface, and the macro language of Zemax is used to make the lens meet the above mentioned relation, simulating and optimizing the result in the non-sequential mode and respectively simulating the three cases of the front surface. It is proposed and simulated a spherical LED array, and analysised the effect of the illumination uniformity of the angle and distance offsets . The result shows that the uniform illumination in a distance of 1 m and 0.25 m in diameter of the plane is achieved, with the uniformity of 96% or more. The spherical array meets the application requirements of shadowless lighting and the depth of illumination up to 1 m.

参考文献

[1] 吴仍茂, 屠大维, 黄志华等. LED照明系统的光照均匀性设计［J］. 光学技术, 2009, 35(1): 74～76

Wu Rengmao, Tu Dawei, Huang Zhihua et al.. Illuminative uniformity design of a LED illumination system ［J］. Optical Technique, 2009, 35(1): 74～76

[2] 卓金寨, 王敏, 庄振锋. 小角度高校配光镜组及阵列设计［J］. 激光与光电子学进展, 2010, 47(11): 112202

Zhuo Jinzhai, Wang Min, Zhuang Zhenfeng. Design of efficient matched mirrors and arrays for small angle LED［J］. Laser & Optoelectronics Progress, 2010, 47(11): 112202

[3] 朱根娣, 刘敏娟. 新型LED手术无影灯的光照度特性的研究［J］. 中国医疗器械杂志, 2009, 33(3): 183～187

Zhu Gendi, Liu Minjuan. Research on the illuminance characteristics of LED surguical luminaire［J］. Chinese J. Medical Instrumentation, 2009, 33(3): 183～187

[4] 余桂英, 金骥, 倪晓武等. 基于光学扩展量得LED均匀照明反射器的设计［J］. 光学学报, 2009, 29(8): 2297～2301

Yu Guiying, Jin Ji, Ni Xiaowu et al.. Dsign for LED uniform illumination reflector based on etendue ［J］. Acta Optica Sinica, 2009, 29(8): 2297～2301

[5] 丁毅, 郑臻荣, 顾培夫. 实现LED照明的自由曲面透镜设计［J］. 光子学报, 2009, 38(6): 1486～1486

Ding Yi, Zheng Zhenrong, Gu Peifu. Freeform lens design for LED illmination［J］. Acta Photonica Sinica, 2009, 38（6）: 1486～1486

[6] Yi Ding, Xu Liu, Zhenrong Zheng et al.. Freeform LED lens for uniform illumination［J］. Opt. Express, 2008, 16(17): 12958～12966

[7] 李竟. 实现LED矩形均匀照明的透镜设计［J］. 应用光学, 2011, 32(2): 211～214

Li Jing. Lens design for uniform illumination of rectangle area with LED［J］. J. Appl. Opt., 2011, 32(2): 211～214

[8] Yi Luo, Zexin Feng, Yanjun Han et al.. Design of compact and smooth free-form optical system with uniform illuminance fo LED source［J］. Opt. Express, 2010, 18(9): 9055～9063

[9] 李澄, 李农. 一种用于均匀照明的LED透镜设计方法［J］. 照明工程学, 2010, 21(3): 46～49

Li Cheng, Li Nong. A LED lens design method for uniform illumination［J］. China Illuminating Engineering Journal, 2010, 21(3): 46～49

[10] 丁毅, 顾培夫. 实现均匀照明的自由曲面反射器［J］. 光学学报, 2007, 27(3): 540～544

Ding Yi, Gu Peifu. Freeform reflector for uniform illumination［J］ . Acta Optica Sinica, 2007, 27( 3): 540～544

[11] 梁程远. LED的二次配光设计[D]. 浙江大学, 2008, 14～20

Liang Chengyuan. The Secondary Optic Design of LED［D］. Zhejiang University,2008,14～20

[12] 黄启禄, 吴逢铁. 基于近场均匀照明的LED二次曲线阵列的研究［J］. 光学学报, 2010, 30(10): 3039～3043

Huang Qilu, Wu Fengtie. Investigation of uniform illumination of near-field targets using a conic light-emitting diode array［J］. Acta Optica Sinica, 2010, 30(10): 3039～3043

[13] Particular Requirements for the Safety of Surgical Luminaries and Luminaries for Diagnosis. YY 0627-2008［S］. Beijing: China Standard Press,2008

李林, 王光珍, 王丽莉, 孔德鹏, 姬江军, 张亚军. 实现均匀照明的LED系统设计方法[J]. 光学学报, 2012, 32(2): 0222002. Li Lin, Wang Guangzhen, Wang Lili, Kong Depeng, Ji Jiangjun, Zhang Yajun. Lens Design for Uniform llIumination with LED[J]. Acta Optica Sinica, 2012, 32(2): 0222002.

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