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Proceedings Paper

Scatter Evaluation Of Supersmooth Surfaces
Author(s): Robert M. Silva; Fred D. Orazio Jr.; W. Kent Stowell
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Paper Abstract

The general term for optical surfaces better than the lowest level of the scratch-dig standards has become the word "supersmooth". It is seen in the technical literature as well as in advertising pieces. A performance number, such as BRDF, which can be measured from the uncoated optical surface by equipment such as the Variable Angle Scatterometer at the Air Force Wright Aeronautical Laboratories at Wright-Patterson Air Force Base is proposed as a method of generating better optical surface specifications. Data shows that surfaces of average BRDF near 10 parts per billion per steradian (0.010 PPM/Sr) are now possible and measurable.

Paper Details

Date Published: 5 April 1983
PDF: 7 pages
Proc. SPIE 0362, Scattering in Optical Materials II, (5 April 1983); doi: 10.1117/12.934135
Show Author Affiliations
Robert M. Silva, VTI, Inc. (United States)
Fred D. Orazio Jr., VTI, Inc. (United States)
W. Kent Stowell, AFWAL/AADO-2 (United States)

Published in SPIE Proceedings Vol. 0362:
Scattering in Optical Materials II
Solomon Musikant, Editor(s)

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