5 August 1980 Cleaning, Coating And Bidirectional Reflectance Distribution Function (BR DF) Measurements Of A Two-Meter Low-Scatter Mirror
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Proceedings Volume 0216, Optics in Adverse Environments II; (1980) https://doi.org/10.1117/12.958442
Event: 1980 Los Angeles Technical Symposium, 1980, Los Angeles, United States
Abstract
In order to understand how to achieve a low scatter coating on an 82" diameter mirror, three different coatings, several cleaning processes, and four different coating chambers were utilized. Microphotographs documented many phases of the analysis, including some taken with an electron microscope at 15000X. Xray analysis of the surface particulates were also made. The results of the many experiments led to the careful cleaning of the 82" mirror surface before aluminizing the surface. The post-coating cleaning process used compensated for the inevitable degradation in the surface scattering characteristics due to shipping and storage. The desired mirror Bidirectional Reflectance Distribution Function was achieved with all the measured values being below 5x10-5 sr-1.
© (1980) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Robert P. Breault, Robert P. Breault, Steven R. Lange, Steven R. Lange, Bill B. Fannin, Bill B. Fannin, } "Cleaning, Coating And Bidirectional Reflectance Distribution Function (BR DF) Measurements Of A Two-Meter Low-Scatter Mirror", Proc. SPIE 0216, Optics in Adverse Environments II, (5 August 1980); doi: 10.1117/12.958442; https://doi.org/10.1117/12.958442
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