基于发光二极管配光曲线设计自由曲面透镜

冯奇斌; 李亚妮; 李其功; 吕国强

doi:10.3788/OPE.20162408.1884

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基于发光二极管配光曲线设计自由曲面透镜

现代应用光学 | 更新时间：2020-07-07

- 基于发光二极管配光曲线设计自由曲面透镜
- Design of double freeform surface lens based on LED radiation characteristics
- Editorial Office of Optics and Precision Engineeri 2016年24卷第8期页码：1884-1893
- 作者机构：
  
  合肥工业大学特种显示技术教育部重点实验室特种显示技术国家工程实验室现代显示技术省部共建国家重点实验室光电技术研究院, 安徽合肥 230009
- 作者简介：
  
  [ "冯奇斌(1970-)，女，天津人，博士，副教授，1995于华东工业大学获得硕士学位，2006年于维也纳工业大学获得博士学位，主要从事立体显示、LED背光等方面的研究。E-mail：fengqibin@hfut.edu.cn" ]
  吕国强(1962-)，男，浙江新昌人，教授，1983年、1986年于浙江大学分别获得学士、硕士学位，现为合肥工业大学光电技术研究院常务副院长，主要从事立体显示、液晶显示等方面的研究。E-mail：guoqianglv@hfut.edu.cn E-mail：guoqianglv@hfut.edu.cn
- 基金信息：
  
  安徽省科技攻关项目(No.1501021043)
- DOI：10.3788/OPE.20162408.1884
  中图分类号： TN141.9;TN312.8
- 收稿日期：2016-03-07，
  
  录用日期：2016-5-3，
  
  纸质出版日期：2016-08-25
- 稿件说明：
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冯奇斌, 李亚妮, 李其功, 等. 基于发光二极管配光曲线设计自由曲面透镜[J]. Editorial Office of Optics and Precision Engineeri, 2016,24(8):1884-1893.

Qi-bin FENG, Ya-ni LI, Qi-gong LI, et al. Design of double freeform surface lens based on LED radiation characteristics[J]. Optics and precision engineering, 2016, 24(8): 1884-1893.
冯奇斌, 李亚妮, 李其功, 等. 基于发光二极管配光曲线设计自由曲面透镜[J]. Editorial Office of Optics and Precision Engineeri, 2016,24(8):1884-1893. DOI： 10.3788/OPE.20162408.1884.

Qi-bin FENG, Ya-ni LI, Qi-gong LI, et al. Design of double freeform surface lens based on LED radiation characteristics[J]. Optics and precision engineering, 2016, 24(8): 1884-1893. DOI： 10.3788/OPE.20162408.1884.

摘要

针对头盔显示器(HMD)液晶像源的特殊要求，选择了一款小尺寸、高光效的发光二极管(LED)作为背光光源。基于此LED的光强分布曲线，利用非成像光学理论设计了双自由曲面透镜阵列，以期进一步提高背光光效。首先对单个LED设计了3款不同半径的双自由曲面透镜，形成了亮度均匀的圆形光斑。然后对单个透镜进行切割，形成矩形光斑，并用4个矩形透镜拼接成透镜阵列。选择了效果最优的透镜进行了加工和测试。结果表明：与传统的采用两层扩散膜的背光结构相比，采用透镜阵列和两层扩散膜后的背光的光能利用率提高了13.94%，背光亮度提高了96.4%，非均匀性由23.8%略提高到23.1%，半亮度视角由37°降低到19°。用设计的透镜及其阵列对LED光源发出的光线进行准直，易形成高亮度的均匀矩形光斑，满足头盔显示器液晶像源背光的要求。

Abstract

For the special requirements of the liquid crystal image source of a Helmet-Mounted Display(HMD)

this paper chooses a smaller size and higher effective Light Emitting Diode(LED) as the backlight source. On the light intensity distribution curve of the LED

a double-freeform-surface lens array was designed based on the no-imaging optical theory to improve the backlight efficiency of the source. Three lens arrays with different radii were firstly designed to form a round light spot with uniform lightness. Then single round lens was cut to become a rectangular light spot and 4 lenses were combined to become a lens array. One lens with the best simulation results was selected to be fabricated and the backlight unit with such lens array was tested. The measurement results show that compared with the common backlight source

the luminous efficiency of the backlight source with 2 diffusers and the lens array increases by 13.94%

the luminance increases by 96.4%

the non-uniformity is slightly improved from 23.8% to 23.1%

and the viewing angle of full width of half maximum decreases from 37 degree to 19 degree. The designed lens array was used to collimate the light from LED sources

satisfying the requirements of the LED backlight in LC imaging engine of the HMD.

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references

Daniel D E, 童林夙. 背光源的发展趋势[J]. 光电子技术, 2006, 26(2): 74-80.

DANIEL D E, TONG L S. Trends of backlights [J]. Optoelectronic Technology, 2006, 26 (2): 74-80.(in Chinese)

常锋, 孙志远, 王瑞光, 等. LED显示图像的非均匀度校正改进方法[J]. 光学精密工程, 2011, 19(4): 929-937.

CHANG F, SUN ZH Y, WANG R G, et al. Improvement of non-uniformity correction of LED display images[J]. Opt. Precision Eng., 2011, 19(4): 929-937.(in Chinese)

SHIN-T W. Next generation LCD technology[J]. Journal of Information Display, 2010, 26(1): 3.

刘玉.透视型液晶头盔显示器应用研究[D]. 杭州: 浙江大学, 2001: 6-20.

LIU Y. Application Study of Transitive LC Head-mounted Display [D]. Hangzhou: Zhejiang University, 2001: 6-20. (in Chinese)

孙远航. 基于LCoS的头盔显示系统的研究[D]. 南京: 东南大学, 2008: 5-18.

SUN Y H. LCoS-based Heat-Mounted Display System [D]. Nanjing: South-East University, 2008: 5-18.(in Chinese)

刘涛, 赵国荣, 陈穆清. 一种新的头盔显示器光学系统设计方案[J]. 光电技术应用, 2005, 20(6): 14-17.

LIU T, ZHAO G R, CHEN M Q. A new design of optical system of helmet-mounted display[J]. Electro-Optic Technology Application, 2005, 20(6): 14-17.(in Chinese)

赵国荣, 刘涛, 李冀鑫. 头盔显示器图像源技术研究[J]. 光电子技术与信息, 2006, 19(2): 64-68.

ZHAO G R, LIU T, LI J X.Research on the image source technology of HMD[J]. Optoelectronic Technology & Information, 2006, 19(2): 64-68.(in Chinese)

罗毅, 张贤鹏, 王霖, 等. 半导体照明中的非成像光学及其应用[J]. 中国激光, 2008, 35(7): 963-971.

LUO Y, ZHANG X P, WANG L, et al. Non-imaging optics and its application in solid state lighting[J].Chinese Journal of Laser, 2008, 35(7): 963-971.(in Chinese)

黄锦胜. 通过自由曲面设计实现LED路灯特定形状光斑的研究[D]. 广州: 华南理工大学, 2013: 34-47. http://cdmd.cnki.com.cn/Article/CDMD-10561-1013318738.htm

HUANG J SH. Free-form Surface Design for LED Street light's Uniform Illumination of Special Area [D]. Guangzhou: South China University of Technology, 2013: 34-47.(in Chinese)

ANNE T, KRISTER B. Color uniformity in spotlights optimized with reflectors and TIR lenses [J]. Optics Express, 2015, 3(23): 118-123.

冯奇斌, 杨光磊, 井长龙, 等 .固态体积式真三维立体显示发光二极管投影光源[J]. 光学精密工程, 2014, 22(5): 1113-1119.

FENG Q B, YANG G L, JING CH L, et al. LED-based projection light source for solid-state volumetric true-3D display[J]. Opt. Precision Eng. , 2014, 22(5): 1113-1119.(in Chinese)

肖一胜, 张继勇. 复眼透镜阵列在LED透镜设计中的应用研究[J]. 照明工程学报, 2010(21): 33-37.

XIAO Y SH, ZHANG J Y.Research on application of compound eyes display to design of LED lenses[J].Chinese Illuminating Engineering Journal, 2010(21): 33-37.(in Chinese)

芦佳宁, 余杰, 童玉珍, 等. 实现大范围均匀照明LED透镜二次光学设计[J]. 半导体光电, 2012(3): 334-337.

LU J N, YU J, TONG Y ZH, et al. Secondary optical design for light emitting diodes lens with wide range and high uniformity illumination [J].Semiconductor Optoelectronics, 2012(3): 334-337.(in Chinese)

闫国栋. 大功率LED集成光源的二次光学系统设计方法研究[D]. 广州: 广东工业大学, 2013: 22-36. http://cdmd.cnki.com.cn/Article/CDMD-11845-1013215251.htm

YAN G D. Study on Secondary Optical System Design for High-power LED Integrated Source [D]. Guangzhou: Guangdong University of Technology, 2013: 22-36.(in Chinese)

LI H T, CHEN SH C, HAN Y J, et al. A fast feedback method to design easy-molding freeform optical system with uniform illuminance and high light control efficiency[J]. Optical Express, 2013, 21(1): 1258-1268.

国军标GJB 5435-2005. 机载有源矩阵液晶显示器光度和色度测量方法[S]. 北京: 中国标准出版社, 2006.

National military standard GJB 5435-2005. The photometric and colorimetric measurement method for active matrix liquid crystal display in aircraft cockpit [S]. Beijing: China Standard Press, 2006.(in Chinese)

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