Optical–digital joint design of refractive telescope using chromatic priors  

作　　者：Jingang Zhang Yunfeng Nie Qiang Fu Yifan Peng 张金刚;聂云峰;付强;彭祎帆(Key Laboratory of Computational Optics Imaging Technology,Chinese Academy of Sciences,Beijing 100094,China;University of Chinese Academy of Sciences,Beijing 100049,Beijing;Brussel Photonics,Department of Applied Physics and Photonics,Vrije Universiteit Brussel,1050 Ixelles,Belgium;King Abdullah University of Science and Technology,Thuwal 23955-6900,Saudi Arabia;The University of British Columbia,Vancouver V6T 1Z4,Canada)

机构地区：[1]Key Laboratory of Computational Optics Imaging Technology,Chinese Academy of Sciences,Beijing 100094,China [2]University of Chinese Academy of Sciences,Beijing 100049,Beijing [3]Brussel Photonics,Department of Applied Physics and Photonics,Vrije Universiteit Brussel,1050 Ixelles,Belgium [4]King Abdullah University of Science and Technology,Thuwal 23955-6900,Saudi Arabia [5]The University of British Columbia,Vancouver V6T 1Z4,Canada

出　　处：《Chinese Optics Letters》2019年第5期68-71,共4页中国光学快报（英文版）

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)

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-of-the-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.

关 键 词：Optical-digital joint design refractive TELESCOPE combat ABERRATIONS 

分 类 号：O3[理学—力学]