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Proceedings Paper

Study on the optical manufacture and testing methods of a refractive-reflective meniscus primary mirror
Author(s): Jian Kang; Bin Xuan; Jingjiang Xie
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Paper Abstract

Manufacture and testing research on a refractive-reflective meniscus primary mirror with a central obscuration is presented. The two surfaces of the primary are both designed as spheres. Because of the index homogeneity, one of them has to be a free-form surface relied on the distribution of homogeneity. The primary is tested with a compensator. There is a difference between the optical paths of the primary of working status and testing status. The tolerance of mid-frequency error of the concave surface ranged from spatial period of 1.82mm to 0.39mm is tight so that the testing result can represent the performance of the primary. The core cut from the primary was cemented and manufactured together with the primary. The concave surface was manufactured to be a sphere. The system error caused by mid-frequency error of the concave sphere has reached to 10.3nm (PV). The wavefront aberration of the primary has reached to 126nm (PV).

Paper Details

Date Published: 16 October 2012
PDF: 7 pages
Proc. SPIE 8416, 6th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies, 841618 (16 October 2012); doi: 10.1117/12.977603
Show Author Affiliations
Jian Kang, Changchun Institute of Optics, Fine Mechanics and Physics (China)
Graduate Univ. of Chinese Academy of Sciences (China)
Bin Xuan, Changchun Institute of Optics, Fine Mechanics and Physics (China)
Jingjiang Xie, Graduate Univ. of Chinese Academy of Sciences (China)


Published in SPIE Proceedings Vol. 8416:
6th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies
Li Yang; Eric Ruch; Shengyi Li, Editor(s)

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