基于近焦点非球面透镜的LED均匀照明设计

梁孙根; 胡淼; 张春洋; 胡晓粉; 毕洲洋; 李齐良; 卢旸; 毕美华; 杨国伟; 周雪芳

doi:10.11884/HPLPB201931.190019

基于近焦点非球面透镜的LED均匀照明设计

doi: 10.11884/HPLPB201931.190019

1.
杭州电子科技大学通信工程学院, 杭州 310018
2.
防化研究院, 北京 102205

基金项目:

国家自然科学基金项目 61705055

详细信息

作者简介:
梁孙根(1994-), 男, 硕士研究生, 从事LED光源均匀辐射模拟器等方面研究; 2350538245@qq.com

通讯作者:
胡淼(1982-), 男, 教授, 博士, 从事大功率LED技术、激光技术研究; miao_hu@foxmail.com

中图分类号: O432
计量
- 文章访问数: 1309
- HTML全文浏览量: 418
- PDF下载量: 63
- 被引次数: 0
出版历程
- 收稿日期: 2019-01-18
- 修回日期: 2019-06-03
- 刊出日期: 2019-09-15

Design of high power LED uniform illumination system based on near-focus aspheric lens

1.
College of Communication Engineering, Hangzhou Dianzi University, Hangzhou 310018, China
2.
Research Institute of Chemical Defense, Beijing 102205, China

摘要

摘要: 依据几何光学和非成像光学理论，提出了一种基于大尺寸近焦点非球面透镜的大功率LED均匀光源设计方法。在该方法中，首先根据选定参数的LED通过几何光学理论初步设计非球面透镜参数，然后在ZEMAX软件中对非球面透镜参数进行基于评价函数的优化，得到焦距76.79 mm、直径为200 mm的非球面透镜。将非球面透镜导入TRACEPRO软件建模并进行光线追迹仿真，根据仿真结果获得最优透镜参数进行加工和下一步实验。实验结果表明：均匀照明系统可以在60 cm处实现发散角±8.53°的均匀照明，光斑均匀性达到95.82%。
- 非球面透镜 /
- LED扩展光源 /
- 均匀度 /
- 光线追迹 /
- 非成像光学理论
Abstract: A high-power LED uniform light source with one large-size near-focus aspherical lens is designed based on the principles of geometric optics and non-imaging optics. First of all, the parameters of the aspherical lens are obtained according to the geometric optics theory. Then, the aspherical lens is optimized in ZEMAX according to the evaluation function to focal length of 76.79 mm and diameter of 200 mm. The aspherical lens is further imported into the software TracePro for ray tracing simulation. According to the simulated results, the aspherical lens is machined for the next experiment. The experimental results indicate that the uniform light source can reach the target with a divergence angle of ±8.53° at 60 cm and uniformity of 95.82%.
- aspheric lens /
- extended LED source /
- uniformity /
- trace rays /
- non-imaging optical theory

HTML全文

图 1 非球面透镜示意图

Figure 1. Schematic diagram of aspheric lens

下载: 全尺寸图片幻灯片

图 2 LED系统仿真示意图

Figure 2. Simulation diagram of LED system

下载: 全尺寸图片幻灯片

图 3 不同距离的仿真光度分布图

Figure 3. Simulated photometric profiles at different distances

下载: 全尺寸图片幻灯片

图 4 实验装置图

Figure 4. Experimental setup

下载: 全尺寸图片幻灯片

图 5 实例测量示意图

Figure 5. Example measurement schematic

下载: 全尺寸图片幻灯片

图 6 不同距离的实验光度分布图

Figure 6. Experimental photometric profiles at different distances

下载: 全尺寸图片幻灯片

参考文献(11)

[1]	Hu R, Luo X, Zheng H, et al. Design of a novel freeform lens for LED uniform illumination and conformal phosphor coating[J]. Optics Express, 2012, 20(13): 13727-13737. doi: 10.1364/OE.20.013727
[2]	Luo X, LiuH, Lu Z, et al. Automated optimization of an aspheric light-emitting diode lens for uniform illumination[J]. Applied Optics, 2011, 50(20): 3412-3418. doi: 10.1364/AO.50.003412
[3]	聂佳林, 胡淼, 阮泽辉, 等. 基于菲涅尔透镜的大功率LED均匀照明系统设计[J]. 光通信技术, 2018, 42(1): 46-49. https://www.cnki.com.cn/Article/CJFDTOTAL-GTXS201801012.htm Nie Jialin, Hu Miao, Ruan Zehui, et al. Design of high power LED uniform illumination system based on Fresnel lens. Optical Communication Technology, 2018, 42(1): 46-49 https://www.cnki.com.cn/Article/CJFDTOTAL-GTXS201801012.htm
[4]	李鹏, 郑毅, 范江兵, 等. 基于大功率LED扩展光源的均匀光斑光辐射模拟器设计[J]. 光子学报, 2015, 44(2): 163-168. https://www.cnki.com.cn/Article/CJFDTOTAL-GZXB201502030.htm Li Peng, Zheng Yi, Fan Jiangbing, et al. Design of squared uniform illumination based on high power LED extended objects. Acta Photonica Sinica, 2015, 44(2): 163-168 https://www.cnki.com.cn/Article/CJFDTOTAL-GZXB201502030.htm
[5]	肖韶荣, 李曼. 一种LED照明光源均匀度设计[J]. 应用光学, 2015, 36(4): 112-117. https://www.cnki.com.cn/Article/CJFDTOTAL-YYGX201504019.htm Xiao Shaorong, Li Man. Design of uniform LED light source. Journal of Applied Optics, 2015, 36(4): 112-117 https://www.cnki.com.cn/Article/CJFDTOTAL-YYGX201504019.htm
[6]	荆雷, 王尧, 赵会富, 等. 实现均匀照度光伏聚光镜设计[J]. 光学学报, 2014, 34(2): 80-85. https://www.cnki.com.cn/Article/CJFDTOTAL-GXXB201402014.htm Jing Lei, Wang Yao, Zhao Huifu, et al. Design of uniform-irradiance concentrator for concentration photo voltaics system. Acta Optica Sinica, 2014, 34(2): 80-85 https://www.cnki.com.cn/Article/CJFDTOTAL-GXXB201402014.htm
[7]	郝剑, 刘华, 孙强, 等. LED自由曲面准直透镜的优化设计方法[J]. 激光与光电子学进展, 2014, 51(3): 175-180. https://www.cnki.com.cn/Article/CJFDTOTAL-JGDJ201403027.htm Hao Jian, Liu Hua, Sun Qiang, et al. Optimization of freeform surface lens for collimating illumination of LED. Laser & Optoelectronics Progress, 2014, 51(3): 175-180 https://www.cnki.com.cn/Article/CJFDTOTAL-JGDJ201403027.htm
[8]	刘百芬, 金小龙, 祝振敏. 基于LED阵列与漫反射自由曲面的均匀照明光源设计[J]. 应用光学, 2014, 35(4): 50-54. https://www.cnki.com.cn/Article/CJFDTOTAL-YYGX201404009.htm Liu Baifen, Jin Xiaolong, Zhu Zhenmin. Uniform illumination design based on LED array and diffuse reflection freeform surface. Journal of Applied Optics, 2014, 35(4): 50-54 https://www.cnki.com.cn/Article/CJFDTOTAL-YYGX201404009.htm
[9]	徐超, 高淑梅, 苏宙平, 等. 一种基于LED扩展光源的均匀照明设计新方法[J]. 激光与光电子学进展, 2014, 51(2): 165-170. https://www.cnki.com.cn/Article/CJFDTOTAL-JGDJ201402024.htm Xu Chao, Gao Shumei, Su Zhouping, et al. A new optical design method of uniform illumination based on extended LED source. Laser & Optoelectronics Progress, 2014, 51(2): 165-170 https://www.cnki.com.cn/Article/CJFDTOTAL-JGDJ201402024.htm
[10]	乔庆飞, 林峰. LED路灯的自由曲面二次透镜设计[J]. 应用光学, 2012, 33(4): 35-39. https://www.cnki.com.cn/Article/CJFDTOTAL-YYGX201204008.htm Qiao Qingfei, Lin Feng. Freeform surface secondary lens for LED streetlight. Journal of Applied Optics, 2012, 33(4): 35-39 https://www.cnki.com.cn/Article/CJFDTOTAL-YYGX201204008.htm
[11]	余桂英, 金骥, 倪晓武, 等. 基于光学扩展量的LED均匀照明反射器的设计[J]. 光学学报, 2009, 29(8): 273-277. https://www.cnki.com.cn/Article/CJFDTOTAL-GXXB200908052.htm Yu Guiying, Jin Ji, Ni Xiaowu, et al. Design for LED uniform illumination reflector based on etendue. Acta Optica Sinica, 2009, 29(8): 273-277 https://www.cnki.com.cn/Article/CJFDTOTAL-GXXB200908052.htm