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Proceedings Paper

Fabrication and metrology study for M3MP of TMT
Author(s): Xiao Luo; Erhui Qi; Haixiang Hu; Haifei Hu; Virginia G. Ford; Glen Cole
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Paper Abstract

M3M (Mirror 3 Mirror) of TMT (Thirty Meter Telescope) project is a 3.5m×2.5m×0.1m solid flat elliptical mirror. M3MP is a 1/4 prototype of M3M serving as a pathfinder for M3M. Fabrication and testing of M3MP were carried out based on planned sketch for M3M established in the past 2 years. Technology including polishing strategy, on site vertical Fizeau sub-aperture interfere test, scanning pentaprism system and dual-supporting system were tested in the fabrication of M3MP. This paper give a brief introduction of the work on M3MP and some of results.

Paper Details

Date Published: 24 October 2016
PDF: 9 pages
Proc. SPIE 9682, 8th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes, 968209 (24 October 2016); doi: 10.1117/12.2245801
Show Author Affiliations
Xiao Luo, Changchun Institute of Optics (China)
Erhui Qi, Changchun Institute of Optics (China)
Haixiang Hu, Changchun Institute of Optics (China)
Univ. of Chinese Academy of Sciences (China)
Haifei Hu, Changchun Institute of Optics (China)
Virginia G. Ford, TMT Observatory Corp. (United States)
Glen Cole, TMT Observatory Corp. (United States)


Published in SPIE Proceedings Vol. 9682:
8th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes
Myung K. Cho; Bin Fan, Editor(s)

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