拼接误差对拼接镜成像质量的影响

下一代大口径望远镜有两个特点，一是主镜通过拼接而成，且是通过主动光学来控制它们之间的平移、倾斜误差；二是采用自适应光学来校正大气湍流。因此分析拼接误差对拼接镜像质的影响，对下一代望远镜发展有重要意义。通过理论及数值仿真分析了拼接式主镜中平移、倾斜误差以及边缘误差对拼接镜成像质量的影响，通过理论与仿真分析可知拼接镜平移误差与倾斜误差对拼接镜成像质量的影响是相互独立的，边缘误差对拼接镜像质的影响较小。

Abstract

Large-aperture optical telescope of next generation has two features. One is that the primary telescope is segmented, and the piston and tilt/tip errors of sub-mirrors are controlled by active optics. Another is that the adaptive optics is used to eliminate the influence of atmospheric turbulence. So it is very important to analyze the effect of segmented errors on image quality of segmented telescope for the development of next generation telescope. The effects of piston, tilt/tip and edge errors of segmented primary telescope on image quality of segmented telescope are analyzed by using the theory and numerical simulation. The results of theory and simulation indicate that the effects of piston error and tilt/tip error on image quality of segmented telescope are mutual independent, and the effect of edge error on image quality of segmented telescope is little.

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李斌, 唐金龙, 于文豪, 陈莫, 鲜浩. 拼接误差对拼接镜成像质量的影响[J]. 激光与光电子学进展, 2017, 54(7): 071202. Li Bin, Tang Jinlong, Yu Wenhao, Chen Mo, Xian Hao. Effect of Segmented Errors on Image Quality of Segmented Telescope[J]. Laser & Optoelectronics Progress, 2017, 54(7): 071202.

拼接误差对拼接镜成像质量的影响

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