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20 May 2009 Design of aspherical surfaces for panoramic imagers using multi-populations genetic algorithm
Li-Ping Wang, Zhong-zhu Liang, Chun-Shui Jin
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Proceedings Volume 7282, 4th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies; 72820N (2009) https://doi.org/10.1117/12.830805
Event: AOMATT 2008 - 4th International Symposium on Advanced Optical Manufacturing, 2008, Chengdu, Chengdu, China
Abstract
A design method of aspherical surface for panoramic imaging system with two mirrors using multi-populations genetic algorithms is proposed. Astigmatism induced by mirrors may significantly compromise image resolution. To solve this problem, we induced algebraic expression of astigmatism in panoramic imager based on generalized Coddington equation and theory of geometric optics. Then, we propose an optimization process for mirror profile design to eliminate astigmatism and provide purposely-designed projection formula with aid of MPGA. A series of polynomial expressions of aspherical surfaces are obtained and procedures of the design are presented. In order to facilitate ray tracing and aberration calculation, even asphere surface model is obtained by using of hybrid schemes combining MPGA and damped least squares. Finally, a prototype of the catadioptric panoramic imager has been developed and panoramic ring image is obtained.
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Li-Ping Wang, Zhong-zhu Liang, and Chun-Shui Jin "Design of aspherical surfaces for panoramic imagers using multi-populations genetic algorithm", Proc. SPIE 7282, 4th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies, 72820N (20 May 2009); https://doi.org/10.1117/12.830805
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KEYWORDS
Mirrors
Panoramic photography
Imaging systems
Monochromatic aberrations
Genetic algorithms
Combined lens-mirror systems
Image resolution
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