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Proceedings Paper

Suitability of igneous rock for precision tooling
Author(s): Martin J. Valente; James H. Burge; R. DiCenso; Abdel A. Abusafieh; Dan R. Federico
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Paper Abstract

Surface plates and blocking tools are commonly made of granite because of its good stability. But how stable is the granite, and which type of material is optimal? We have explored several materials and manufacturing processes for a 4-m aspheric reference surface that would serve as a tool for laying up composite optics. In this paper, we discuss the materials selection, stability to thermal and moisture effects, and parameters for processing the surface to give sub-micron accuracy and stability.

Paper Details

Date Published: 27 December 2001
PDF: 7 pages
Proc. SPIE 4451, Optical Manufacturing and Testing IV, (27 December 2001); doi: 10.1117/12.453617
Show Author Affiliations
Martin J. Valente, Optical Sciences Ctr./Univ. of Arizona (United States)
James H. Burge, Optical Sciences Ctr./Univ. of Arizona (United States)
R. DiCenso, Composite Optics, Inc. (United States)
Abdel A. Abusafieh, Composite Optics, Inc. (United States)
Dan R. Federico, Composite Optics, Inc. (United States)

Published in SPIE Proceedings Vol. 4451:
Optical Manufacturing and Testing IV
H. Philip Stahl, Editor(s)

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