Optical-digital joint design of refractive telescope using chromatic priors
Conventional optical system design employs combinations of different lenses to combat aberrations, which usually leads to considerable volume and weight. In this paper, 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, 1,400mm 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.
Vrije Univ Brussel
King Abdullah University of Science and Technology
The University of British Columbia
zhang jingang,Nie Yunfeng,Fu Q.,Peng Yifan,Xiang Libin. Optical-digital joint design of refractive telescope using chromatic priors[J].Chinese Optics Letters,2019,17(5):05.