Manufacturing of a three mirror anastigmat telescope

Xuejun Zhang; Jianlin Cao

doi:10.1117/12.530941

19 November 2003 Manufacturing of a three mirror anastigmat telescope

Xuejun Zhang, Jianlin Cao

Proceedings Volume 4829, 19th Congress of the International Commission for Optics: Optics for the Quality of Life; (2003) https://doi.org/10.1117/12.530941
Event: 19th Congress of the International Commission for Optics: Optics for the Quality of Life, 2002, Florence, Italy

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.

Citation Download Citation

Xuejun Zhang and Jianlin Cao "Manufacturing of a three mirror anastigmat telescope", Proc. SPIE 4829, 19th Congress of the International Commission for Optics: Optics for the Quality of Life, (19 November 2003); https://doi.org/10.1117/12.530941

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