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

doi:10.13741/j.cnki.11-1879/o4.2018.01.022

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

更新时间：2025-09-01

- Optimization of double freeform-surface lens with large view angle based on BreedPSO algorithm and overlapping method
- Vol. 44, Issue 1, Pages: 123-128(2018)
- 作者机构：
  
  1:江南大学理学院江苏省轻工光电工程技术研究中心
- 作者简介：
- 基金信息：
- DOI：10.13741/j.cnki.11-1879/o4.2018.01.022
  CLC：
- Published：2018
- 稿件说明：
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Optimization of double freeform-surface lens with large view angle based on BreedPSO algorithm and overlapping method[J]. 2018, 44(1): 123-128.
DOI：

Optimization of double freeform-surface lens with large view angle based on BreedPSO algorithm and overlapping method[J]. 2018, 44(1): 123-128. DOI： 10.13741/j.cnki.11-1879/o4.2018.01.022.

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。

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