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Proceedings Paper

Optimum selection of high performance mirror substrates for diamond finishing
Author(s): Kenneth S. Woodard; Lovell E. Comstock; Leonard Wamboldt; James S. Sutherland
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Paper Abstract

Due to advances in manufacturing processes, the substrate options for high performance diamond machined mirrors are expanding. Fewer compromises have to be made to achieve the needed weight, stiffness and finish while maintaining reasonable costs. In addition to the traditional mirror materials like aluminum and beryllium, there are some less common materials that can now be included in the trade space that fill the cost and performance continuum between wrought aluminum and beryllium mirrors. Aluminum and beryllium, respectively, had been the low cost/fair performance and very high cost/very high performance bounds for substrate selection. These additional substrates provide multiple near net shape blank options and processes, mostly within these bounds, that can be considered in a mirror cost versus performance trade analysis. This paper will include a summary of some advances in manufacturing processes that provide more substrate options for diamond machined mirrors with some sample performance analysis and data. This is merged with the traditional substrate options to illustrate the now larger mirror substrate trade space. Some benchmark structural analysis is provided to back up a generic mirror design trade study.

Paper Details

Date Published: 17 May 2016
PDF: 6 pages
Proc. SPIE 9822, Advanced Optics for Defense Applications: UV through LWIR, 98220C (17 May 2016); doi: 10.1117/12.2231326
Show Author Affiliations
Kenneth S. Woodard, Corning Inc. (United States)
Lovell E. Comstock, Corning Inc. (United States)
Leonard Wamboldt, Corning Inc. (United States)
James S. Sutherland, Corning Inc. (United States)

Published in SPIE Proceedings Vol. 9822:
Advanced Optics for Defense Applications: UV through LWIR
Jay N. Vizgaitis; Bjørn F. Andresen; Peter L. Marasco; Jasbinder S. Sanghera; Miguel P. Snyder, Editor(s)

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