Computer Science – Performance
Scientific paper
Oct 1982
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982spie..332..294k&link_type=abstract
IN: International Conference on Advanced Technology Optical Telescopes, Tucson, AZ, March 11-13, 1982, Proceedings (A83-30976 13
Computer Science
Performance
1
Aberration, Environmental Tests, Mirrors, Optical Correction Procedure, Performance Tests, Telescopes, Atmospheric Effects, Laser Interferometry, Reflecting Telescopes, Standard Deviation, Turbulence Effects, Wave Front Deformation
Scientific paper
Reference is made to the problems caused by local turbulence and nonuniformity in the layers of air in large test tunnels. In the case described here, the final tests are carried out in a vertical tunnel using a laser interferometer with a compensating medium. A special sequence of interferograms is employed to suppress the thermal, accidental, and environmental influences, and the wave front errors are evaluated accordingly. The results demonstrate that the standard deviation due to the mirror is 24 nm out of a total standard deviation of 49 nm taken as an average of 24 interferograms.
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