Physics – Optics
Scientific paper
Jan 1987
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987spie..751...96d&link_type=abstract
IN: Reflective optics; Proceedings of the Meeting, Los Angeles, CA, Jan. 15, 16, 1987 (A88-34536 13-74). Bellingham, WA, Society
Physics
Optics
Infrared Interferometers, Mirrors, Alignment, Optical Equipment, Tests
Scientific paper
Rapid, quantitative, optical-interferometric measurements in the visible and IR ranges have been devised for the testing of large, single-point diamond-turned telescope mirrors and other reflective optics. A significant difference is noted between interferometric data taken in an ordinary laboratory environment and that obtained in a superstable environment, at the 0.6328-micron visible wavelength. IR phase-measuring interferometry virtually eliminates this problem, in any optical testing that does not require the extreme resolution of visible phase-measuring interferometry.
Casstevens John M.
Dickert Ronald P.
Stahl Philip H.
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