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基于BreedPSO算法及交叠法的紧凑型大角度双自由曲面透镜设计

Optimization of double freeform-surface lens with large view angle based on BreedPSO algorithm and overlapping method

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摘要

为了获得LED扩展光源大角度均匀照明, 采用双自由曲面, 设计了大角度紧凑型透镜。利用角度扩大函数使内自由曲面对光线发散 , 根据矢量Snell定律确定点源透镜的外自由曲面。采用交叠法优化双自由曲面扩展光源透镜模型, 通过BreedPSO算法进一步优化。对于h/d=2.5的紧凑型系统, 均匀度和光效分别为88.12%和84.54%, 照明均匀度明显提高。照明系统横向安装位移误差在[0, 0.3mm]内, 均匀度及光效分别在85%及84%以上, 纵向安装位移误差在[-0.04mm, 0.05mm], 均匀度及光效均在82%以上。

Abstract

A compact double freeform-surface lens with large view angle is designed to make a uniform illumination for LED extended source with double free-form surfaces. The angle magnification function is proposed to make rays diverge from the inner surface. The outer freeform-surface of the lens for a dot light source is achieved according to Snell’s law in vector form. The overlapping method is used to optimize the double freeform lens with extended source. The lens is further optimized by BreedPSO algorithm. For a compact system with h/d=2.5, the uniformity and luminous efficiency are 88.12% and 84.54% respectively, and the uniformity is significantly improved. The uniformity and luminous efficiency are more than 85% and 84% respectively when the displacement error in the horizontal direction is within [-0.04mm, 0.05mm]. The uniformity and luminous efficiency are both over 82% when the displacement error in the longitudinal direction is within [-0.04mm, 0.05mm].

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中图分类号:TN312.8;O439

所属栏目:光学仪器与光学设计

收稿日期:2016-12-17

修改稿日期:2017-02-28

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谭叶青:江南大学 理学院 江苏省轻工光电工程技术研究中心, 江苏 无锡 214122
李萍:江南大学 理学院 江苏省轻工光电工程技术研究中心, 江苏 无锡 214122
李潇:江南大学 理学院 江苏省轻工光电工程技术研究中心, 江苏 无锡 214122
曹明:江南大学 理学院 江苏省轻工光电工程技术研究中心, 江苏 无锡 214122
曹建军:江南大学 理学院 江苏省轻工光电工程技术研究中心, 江苏 无锡 214122
钱维莹:江南大学 理学院 江苏省轻工光电工程技术研究中心, 江苏 无锡 214122
高淑梅:江南大学 理学院 江苏省轻工光电工程技术研究中心, 江苏 无锡 214122

联系人作者:谭叶青(tyqinujn@outlook.com)

备注:谭叶青(1993-), 男, 硕士研究生, 从事光电器件与系统研究。

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引用该论文

TAN Yeqing,LI Ping,LI Xiao,CAO Ming,CAO Jianjun,QIAN Weiying,GAO Shumei. Optimization of double freeform-surface lens with large view angle based on BreedPSO algorithm and overlapping method[J]. Optical Technique, 2018, 44(1): 123-128

谭叶青,李萍,李潇,曹明,曹建军,钱维莹,高淑梅. 基于BreedPSO算法及交叠法的紧凑型大角度双自由曲面透镜设计[J]. 光学技术, 2018, 44(1): 123-128

被引情况

【1】王德宇,王雪琨,于文文,曹建军,钱维莹,高淑梅. 面向皮革缺陷检测的离轴LED曲面阵列照明设计. 激光与光电子学进展, 2019, 56(8): 82202--1

【2】王德宇,王雪琨,于文文,曹建军,钱维莹,高淑梅. 面向皮革缺陷检测的离轴LED曲面阵列照明设计. 激光与光电子学进展, 2019, 56(8): 82202--1

【3】王福斌,刘贺飞,霍晓彤,李占贤,刘同乐,徐傲. 基于图像矩特征的工件摆放类型Parzen窗估计. 光学技术, 2019, 45(4): 404-411

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