Optical–digital joint design of refractive telescope using chromatic priors

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英文篇名：Optical–digital joint design of refractive telescope using chromatic priors 作者：张金刚 ; 聂云峰 ; 付强 ; 彭祎帆 英文作者：Jingang Zhang;Yunfeng Nie;Qiang Fu;Yifan Peng;Key Laboratory of Computational Optics Imaging Technology, Chinese Academy of Sciences;University of Chinese Academy of Sciences;Brussel Photonics, Department of Applied Physics and Photonics, Vrije Universiteit Brussel;King Abdullah University of Science and Technology;The University of British Columbia; 中文刊名：GXKB 英文刊名：中国光学快报(英文版) 机构：Key Laboratory of Computational Optics Imaging Technology, Chinese Academy of Sciences;University of Chinese Academy of Sciences;Brussel Photonics, Department of Applied Physics and Photonics, Vrije Universiteit Brussel;King Abdullah University of Science and Technology;The University of British Columbia; 出版日期：2019-05-25 出版单位：Chinese Optics Letters 年：2019 期：v.17 基金：supported by the Joint Foundation Program of the Chinese Academy of Sciences for Equipment Pre-Feasibility Study(No.6141A01011601);; the National Natural Science Foundation of China(Nos.61775219 and61640422);; the Equipment Research Program of the Chinese Academy of Sciences(No.Y70X25A1HY) 语种：英文; 页：GXKB201905015 页数：4 CN：05 ISSN：31-1890/O4 分类号：72-75

摘要

The conventional optical system design employs combinations of different lenses to combat aberrations, which usually leads to considerable volume and weight. In this Letter, a tailored design scheme that exploits state-ofthe-art digital aberration correction algorithms in addition to traditional optics design is investigated. In particular, the proposed method is applied to the design of refractive telescopes by shifting the burden of correcting chromatic aberrations to software. By enforcing cross-channel information transfer in a post-processing step, the uncorrected chromatic aberrations are well-mitigated. Accordingly, a telescope of F-8, 1400 mm focal length,and 0.14° field of view is designed with only two lens elements. The image quality of the designed telescope is evaluated by comparing it to the equivalent designs with multiple lenses in a traditional optical design manner,which validates the effectiveness of our design scheme.
        The conventional optical system design employs combinations of different lenses to combat aberrations, which usually leads to considerable volume and weight. In this Letter, a tailored design scheme that exploits state-ofthe-art digital aberration correction algorithms in addition to traditional optics design is investigated. In particular, the proposed method is applied to the design of refractive telescopes by shifting the burden of correcting chromatic aberrations to software. By enforcing cross-channel information transfer in a post-processing step, the uncorrected chromatic aberrations are well-mitigated. Accordingly, a telescope of F-8, 1400 mm focal length,and 0.14° field of view is designed with only two lens elements. The image quality of the designed telescope is evaluated by comparing it to the equivalent designs with multiple lenses in a traditional optical design manner,which validates the effectiveness of our design scheme.

引文

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