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Proceedings Paper

Manufacture of an 8-meter-class primary mirror
Author(s): W. Scott Smith
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Paper Abstract

Contraves Inc. is currently under contract to develop the facility and tooling for processing the Subaru 8.3-meter primary mirror. The optical polishing of an 8-meter class astronomical mirror presents several challenges. Simply the size of the substrate makes all handling and transportation difficult. The mirror substrate is presently being manufactured by Corning Incorporated in Canton, New York. The project includes the transportation from Canton to Wampum, Pennsylvania, the optical processing, and the final delivery to Mauna Kea, Hawaii. This program is based on existing technology. The polishing machine, optical test equipment, and support fixtures are proven equipment. The processes, equipment, and facilities required for the production of the Subaru 8.3-meter monolithic, concave, hyperbolic, thin meniscus mirror are presented here.

Paper Details

Date Published: 1 February 1994
PDF: 10 pages
Proc. SPIE 1994, Advanced Optical Manufacturing and Testing IV, (1 February 1994); doi: 10.1117/12.167970
Show Author Affiliations
W. Scott Smith, Contraves Inc. (United States)


Published in SPIE Proceedings Vol. 1994:
Advanced Optical Manufacturing and Testing IV
Victor J. Doherty, Editor(s)

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