Primary chromatic aberration elimination via optimization work with genetic algorithm

Bo-Wen Wu; Tung-Kuan Liu; Yi-Chin Fang; Jyh-Horng Chou; Hsien-Lin Tsai; En-Hao Chang

doi:10.1117/12.793735

27 September 2008 Primary chromatic aberration elimination via optimization work with genetic algorithm

Bo-Wen Wu, Tung-Kuan Liu, Yi-Chin Fang, Jyh-Horng Chou, Hsien-Lin Tsai, En-Hao Chang

Proceedings Volume 7100, Optical Design and Engineering III; 71000J (2008) https://doi.org/10.1117/12.793735
Event: Optical Systems Design, 2008, Glasgow, Scotland, United Kingdom

Abstract

Chromatic Aberration plays a part in modern optical systems, especially in digitalized and smart optical systems. Much effort has been devoted to eliminating specific chromatic aberration in order to match the demand for advanced digitalized optical products. Basically, the elimination of axial chromatic and lateral color aberration of an optical lens and system depends on the selection of optical glass. According to reports from glass companies all over the world, the number of various newly developed optical glasses in the market exceeds three hundred. However, due to the complexity of a practical optical system, optical designers have so far had difficulty in finding the right solution to eliminate small axial and lateral chromatic aberration except by the Damped Least Squares (DLS) method, which is limited in so far as the DLS method has not yet managed to find a better optical system configuration. In the present research, genetic algorithms are used to replace traditional DLS so as to eliminate axial and lateral chromatic, by combining the theories of geometric optics in Tessar type lenses and a technique involving Binary/Real Encoding, Multiple Dynamic Crossover and Random Gene Mutation to find a much better configuration for optical glasses. By implementing the algorithms outlined in this paper, satisfactory results can be achieved in eliminating axial and lateral color aberration.

Citation Download Citation

Bo-Wen Wu, Tung-Kuan Liu, Yi-Chin Fang, Jyh-Horng Chou, Hsien-Lin Tsai, and En-Hao Chang "Primary chromatic aberration elimination via optimization work with genetic algorithm", Proc. SPIE 7100, Optical Design and Engineering III, 71000J (27 September 2008); https://doi.org/10.1117/12.793735

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