Physics – Optics
Scientific paper
Jan 1979
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979spie..193..229l&link_type=abstract
In: Optical systems engineering; Proceedings of the Seminar, San Diego, Calif., August 27, 28, 1979. (A80-39451 16-35) Bellingha
Physics
Optics
Atmospheric Optics, Atmospheric Turbulence, Collimators, Computerized Simulation, Optical Equipment, Rotating Bodies, Algorithms, Computer Programs, Plates, Statistical Analysis, Structural Design, Wave Fronts
Scientific paper
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 the 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.
Knowlden R. W.
Lange S. R.
Metheny W. W.
Turner S. Jr. T.
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