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Proceedings Paper

Comparison of materials for use in the precision grinding of optical components
Author(s): Boyd M. Evans; Arthur C. Miller; Charles M. Egert
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Paper Abstract

Precision grinding of optical components is becoming an accepted practice for rapidly and deterministically fabrication optical surface to final or near-final surface finish and figure. In this paper, a comparison of grinding techniques and materials is performed. Flat and spherical surfaces were ground in three different substrate materials: BK7 glass, chemical vapor deposited silicon carbide ceramic, and sapphire. Spherical surfaces were used to determine the contouring capacity of the process, and flat surfaces were used for surfaces finish measurements. The recently developed Precitech Optimum 2800 diamond turning and grinding platform was used to grind surfaces in 40mm diameter substrates sapphire and silicon carbide substrates and 200 mm BK7 glass substrates using diamond grinding wheels. The results of this study compare the surface finish and figure for the three materials.

Paper Details

Date Published: 1 November 1997
PDF: 8 pages
Proc. SPIE 3134, Optical Manufacturing and Testing II, (1 November 1997); doi: 10.1117/12.295127
Show Author Affiliations
Boyd M. Evans, Oak Ridge National Lab. (United States)
Arthur C. Miller, Oak Ridge National Lab. (United States)
Charles M. Egert, Oak Ridge National Lab. (United States)


Published in SPIE Proceedings Vol. 3134:
Optical Manufacturing and Testing II
H. Philip Stahl, Editor(s)

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