Highly compact optical design of an off-axis three-mirror system with freeform surfaces

Sihao Pan; Zhifeng Pan; Jianfa Chen

doi:10.1117/12.2504809

11 January 2019 Highly compact optical design of an off-axis three-mirror system with freeform surfaces

Sihao Pan, Zhifeng Pan, Jianfa Chen

Proceedings Volume 10837, 9th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes; 1083715 (2019) https://doi.org/10.1117/12.2504809
Event: Ninth International Symposium on Advanced Optical Manufacturing and Testing Technologies (AOMATT2018), 2018, Chengdu, China

Abstract

With the development of optical machining and testing, the gap between freeform surface fabrication and design has been filled. Based on the freeform surfaces’ extraordinary feature for balancing asymmetric aberration and compressing system volume, an volume-compression optical design method for off-axis, three-mirror system is presented. Based on the guide of Nodal Aberration Theory for balancing asymmetric aberration, some optimization rules and tricks are shared during the optimization process. In the end, a highly-compact optical system with wide field of view, large entrance pupil and small F number is shown, the image quality is close to diffraction limit at Nyquist frequency.

Citation Download Citation

Sihao Pan, Zhifeng Pan, and Jianfa Chen "Highly compact optical design of an off-axis three-mirror system with freeform surfaces", Proc. SPIE 10837, 9th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes, 1083715 (11 January 2019); https://doi.org/10.1117/12.2504809

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