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Proceedings Paper

Primary mirror segment fabrication for CELT
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Paper Abstract

The primary mirror of the proposed California Extremely Large Telescope is a 30-meter diameter mosaic of hexagonal segments. An initial design calls for about a thousand segments with a hexagon side length of 0.5 meters, a primary-mirror focal ratio of 1.5, and a segment surface quality of about 20 nanometers rms. We describe concepts for fabricating these segments.

Paper Details

Date Published: 20 July 2000
PDF: 16 pages
Proc. SPIE 4003, Optical Design, Materials, Fabrication, and Maintenance, (20 July 2000); doi: 10.1117/12.391538
Show Author Affiliations
Terry S. Mast, UCO/Lick Observatory (United States)
Jerry E. Nelson, UCO/Lick Observatory (United States)
Gary E. Sommargren, Lawrence Livermore National Lab. (United States)

Published in SPIE Proceedings Vol. 4003:
Optical Design, Materials, Fabrication, and Maintenance
Philippe Dierickx, Editor(s)

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