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Proceedings Paper

Simulation Of A Moving Atmosphere By A Rotating Phase Plate
Author(s): S. R. Lange; R. W. Knowlden,; T. S. Turner Jr.; W. W. Metheny
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Paper Abstract

To simulate the wavefront perturbations produced when an optical system moves or scans through a static atmosphere, a rotating phase plate was situated in the vicinity of a focus in a collimator. The phase plate is a mirror with statistically defined deviations from flatness etched into the surface. Its diameter is considerably larger than the collimator clear aperture at that location. The collimator beam is decentered from the rotation axis such that the mirror rotates past the beam and presents a changing wavefront whose appearance to the test optical system resembles atmosphere streaming past the aperture. The computer simulation of the statistical perturbations, fabrication method, interference testing, and computerized reduction of the results to compare with the experimentally observed five-thirds law are discussed.

Paper Details

Date Published: 29 November 1979
PDF: 8 pages
Proc. SPIE 0193, Optical Systems in Engineering I, (29 November 1979); doi: 10.1117/12.957895
Show Author Affiliations
S. R. Lange, University of Arizona (United States)
R. W. Knowlden,, University of Arizona (United States)
T. S. Turner Jr., University of Arizona (United States)
W. W. Metheny, University of Arizona (United States)

Published in SPIE Proceedings Vol. 0193:
Optical Systems in Engineering I
Paul R. Yoder Jr., Editor(s)

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