6 December 1993 Manufacture and finishing of lightweight silicon carbide mirrors
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Abstract
The requirement for lightweight mirrors for spaceborne application has often been met through the use of beryllium or low-expansion glass-like materials. The current availability of silicon carbide substrates and the development of suitable manufacturing and finishing process, however, provide an alternative material for such uses. This paper describes the manufacture of a series of lightweight silicon carbide scan mirrors intended for satellite installation. The finishing procedures employed and the test results obtained while establishing surface accuracies on the order of one millionth of an inch are presented and discussed.
© (1993) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Jonathan W. Bender, Donald G. Ewing, "Manufacture and finishing of lightweight silicon carbide mirrors", Proc. SPIE 2018, Passive Materials for Optical Elements II, (6 December 1993); doi: 10.1117/12.165234; https://doi.org/10.1117/12.165234
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