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大面型LED紧凑型匀透镜优化设计

A Optimization Design of Compact Uniform Lens for Large-Size LED

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摘要

通常的商用和民用LED照明都期望照明器件小型化,同时具有高光通量和照明均匀度.近年市场出现的板上芯片(COB)-LED可以具有较高的光通量,但在有限的区域实现特定的照度分布就需要通过二次光学设计来实现.针对大面型COB-LED加紧凑型自由曲面透镜的小型照明器件,提出了一种在圆形照明区域内实现均匀照明的快速优化设计方法.优化设计时,以等弧长方法有效减少优化点的选取,提高优化效率.结合三次样条插值理论和自定义优化函数,在TracePro 软件二次开发环境中实现了目标区域的均匀照明,照明均匀性和光能利用率分别达到90%和95%以上.该方法还适用于COB-LED芯片一次封装匀透镜的设计.

Abstract

The miniaturization of LEDlamp with high luminous flux and light uniformity is the pursuit of LEDlighting,including commercial and civil lighting.The chips on board (COB)-LEDappeared recent years has high flux.However,special secondary optics still need to generate the required irradiance distribution.For small lighting device with compact freeform surface lens on large size COB-LED,a fast optimization design method to achieve the goal of uniform illumination in circular region is proposed.During the optimization,equal arc-length method is applied to reduce the number of optimization points,thus optimization efficiency is enhanced substantially.Combining the cubic spline interpolation and custom merit function,uniform illumination on the target area with light angle at range of 30° to 50° is realized in secondary development environment of TracePro software.The illumination uniformity and light energy utilization rate of the target plane reach more than 90% and 95% respectively.This method is also suitable for the design of uniform lens for COB-LEDpackage .

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中图分类号:O432

DOI:10.3788/lop52.042201

所属栏目:光学设计与制造

责任编辑:韩峰

基金项目:江苏省自然科学基金(BK2012548)

收稿日期:2014-09-29

修改稿日期:2014-11-19

网络出版日期:2015-02-10

作者单位    点击查看

徐超:江南大学理学院, 江苏 无锡 214000
高淑梅:江南大学理学院, 江苏 无锡 214000
钱维莹:江南大学理学院, 江苏 无锡 214000
刘诚:江南大学理学院, 江苏 无锡 214000
高培丽:江南大学理学院, 江苏 无锡 214000

联系人作者:徐超(xuchao198910@163.com)

备注:徐超(1989—),男,硕士研究生,主要从事光学设计方面的研究.

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引用该论文

Xu Chao,Gao Shumei,Qian Weiying,Liu Cheng,Gao Peili. A Optimization Design of Compact Uniform Lens for Large-Size LED[J]. Laser & Optoelectronics Progress, 2015, 52(4): 042201

徐超,高淑梅,钱维莹,刘诚,高培丽. 大面型LED紧凑型匀透镜优化设计[J]. 激光与光电子学进展, 2015, 52(4): 042201

被引情况

【1】李潇,高培丽,黄逸峰,钱维莹,苏宙平,刘诚,高淑梅. 基于序列光线追迹原理的快速优化照明设计. 应用光学, 2015, 36(6): 873-879

【2】潘浩,陈国庆,杜伯钧. 基于三次样条的双自由曲面LED 匀光透镜设计. 激光与光电子学进展, 2016, 53(3): 32201--1

【3】李 潇,黄逸峰,谭叶青,钱维莹,苏宙平,刘 诚,高淑梅. 基于SelPSO算法的紧凑型照明器件优化方法. 应用光学, 2016, 37(4): 595-601

【4】李远兴,梁文跃,叶湖贵,龙拥兵,申冬玲,严辉章,谭健华,叶嘉建. 基于COB LED的均匀光强分布可见光通信系统发射端的光学设计. 光学学报, 2016, 36(10): 1022002--1

【5】梁文跃,李远兴,龙拥兵,申冬玲,茹达兴,凡利娟,谢凯彬. 板上芯片型LED光源均匀照明自由曲面透镜设计. 激光与光电子学进展, 2017, 54(1): 12202--1

【6】祝振敏,罗慧. 漫反射自由曲面的设计方法. 激光与光电子学进展, 2017, 54(5): 52201--1

【7】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. 光学技术, 2018, 44(1): 123-128

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