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4 October 1983 Scatter Evaluation Of Supersmooth Surface
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Proceedings Volume 0384, Generation, Measurement and Control of Stray Radiation III; (1983) https://doi.org/10.1117/12.934931
Event: 1983 Los Angeles Technical Symposium, 1983, Los Angeles, United States
Abstract
The general term for optical surfaces better than the lowest level of the scratch-dig standards has become "supersmooth", and is seen in 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 Laborataories at Wright-Patterson Air Force Base is proposed as a method of generating better optical surface specifications. Data show that surfaces of average BRDF values near 10 parts per billion per steradian (0.010 PPM/Sr) for β-βo = 0.5, are now possible and measurable.
© (1983) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Robert M. Silva, Fred D. Orazio Jr., and W. Kent Stowell "Scatter Evaluation Of Supersmooth Surface", Proc. SPIE 0384, Generation, Measurement and Control of Stray Radiation III, (4 October 1983); https://doi.org/10.1117/12.934931
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