| 采用多种群遗传算法的全景成像系统非球面设计 |
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| 引用本文： | 王丽萍,张立超,何锋谮,金春水.采用多种群遗传算法的全景成像系统非球面设计[J].光学精密工程,2009,17(5). |
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| 作者姓名： | 王丽萍 张立超 何锋谮 金春水 |
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| 作者单位： | 1. 中国科学院,长春光学精密机械与物理研究所,吉林,长春,130033;中国科学院,研究生院,北京,100039
2. 中国科学院,长春光学精密机械与物理研究所,吉林,长春,130033 |
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| 基金项目： | 吉林省科技厅资助项目 |
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| 摘 要： | 提出了一种基于多种群遗传算法(MPGA)的折反射全景成像系统非球面元件的设计方法.结合广义科丁顿公式及几何光学原理,推导出非球面两镜系统像散表达式.在此基础上,利用MPGA,以像散作为非球面两镜系统像差评价参数,求解出满足消像散及指定透视投影关系的非球面面形方程.给出MPGA求解非球面面形的实现过程,并用遗传算法最小二乘混合优化算法得到了便于实现光线追迹和像差计算的非球面多项式.研制了一个焦距为-1.2 mm,F数为1.5 ,视场为360°×(35～90°)的折反射全景成像系统,给出了实验图像,获得了较好的成像质量.
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| 关 键 词： | 全景成像系统 非球面 多种群遗传算法 光学设计 |
Design of aspheric mirror for panoramic imaging system using multi-population genetic algorithm |
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| WANG Li-ping,ZHANG Li-chao,HE Feng-yun,JIN Chun-shui.Design of aspheric mirror for panoramic imaging system using multi-population genetic algorithm[J].Optics and Precision Engineering,2009,17(5). |
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| Authors: | WANG Li-ping ZHANG Li-chao HE Feng-yun JIN Chun-shui |
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| Affiliation: | 1.State Key Laboratory of Applied Optics;Changchun Institute of Optics;Fine Mechanics and Physics;Chinese Academy of Sciences;Changchun 130033;China;2.Graduate University of Chinese Academy of Sciences;Beijing 100039;China |
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| Abstract: | A design method of aspherical surface for a panoramic imaging system with two mirrors was proposed based on Multi-population Genetic Algorithms(MPGA).To eliminate the astigmatisms induced by mirrors and to improve the image resolution,an algebraic expression of astigmatism for panoramic imagers was induced based on the generalized Coddington equation and the theory of geometric optics.Then,an optimization process for mirror profile design was proposed to eliminate the astigmatism and to provide a purposely-... |
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