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Proceedings Paper

Manufacturing of a three mirror anastigmat telescope
Author(s): Xuejun Zhang; Jianlin Cao
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Paper Abstract

The Computer Controlled Optical Surfacing (CCOS) and testing procedures to make Three Mirror Anastigmat (TMA) telescope are presented in details. The difficulties in polishing and testing for both circular aperture and rectangular aperture mirrors are previewed, and a new fabrication method is proposed. The three mirrors have been polished by means of CCOS, the final accuracy is better than 13 nm rms. This result just meets the optical tolerances specified by the designer, and the manufacturing and testing method presented here could be an useful technology to make large off-axis aspherical mirrors.

Paper Details

Date Published: 19 November 2003
PDF: 2 pages
Proc. SPIE 4829, 19th Congress of the International Commission for Optics: Optics for the Quality of Life, (19 November 2003); doi: 10.1117/12.530941
Show Author Affiliations
Xuejun Zhang, Changchun Institute of Optics and Fine Mechanics (China)
Jianlin Cao, Changchun Institute of Optics and Fine Mechanics (China)


Published in SPIE Proceedings Vol. 4829:
19th Congress of the International Commission for Optics: Optics for the Quality of Life
Giancarlo C. Righini; Anna Consortini, Editor(s)

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