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11 January 2019 A study on analysis and control for eccentric error of common path optical system
Xiaozhou Zuo, Yan Zhang, Haicheng Yang, Gangyang Hui, Xin Liu, Zhangli Wang, Feng Jiang, Hongjun Zhao, Weiguang Liu, Xiaobin Zhou
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Proceedings Volume 10837, 9th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes; 1083718 (2019) https://doi.org/10.1117/12.2504848
Event: Ninth International Symposium on Advanced Optical Manufacturing and Testing Technologies (AOMATT2018), 2018, Chengdu, China
Abstract
An centering alignment technique of collimation lens group based on the optical axis of primary mirror is introduced in this paper, so as to meet up with the deviation requirements in the assembly of high-quality Common Path Optical system. A non-aberration system is designed in the first place in order to analyse the conjunction between the Wave-front aberration and eccentric error,then construct the simulation model of cassegrain system and collimation lens group based on test result,formed the eccentric error mapping relationship between the two variables. The collimation lens group is then assembied and aligned on the basis of the axis of the aspheric primary mirror. The technique has been verified through both simulative tests and actual measurements, and the results suggest the eccentric error is less than 0.04mm, and the Common Path Optical system Wave-front aberration RMS less than 0.03um.
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Xiaozhou Zuo, Yan Zhang, Haicheng Yang, Gangyang Hui, Xin Liu, Zhangli Wang, Feng Jiang, Hongjun Zhao, Weiguang Liu, and Xiaobin Zhou "A study on analysis and control for eccentric error of common path optical system", Proc. SPIE 10837, 9th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes, 1083718 (11 January 2019); https://doi.org/10.1117/12.2504848
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KEYWORDS
Error analysis
Mirrors
Imaging systems
Mathematical modeling
Optical design
Optical alignment
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