Computer Science – Performance
Scientific paper
Jan 1981
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981spie..310...77w&link_type=abstract
In: Image quality; Proceedings of the Seminar, San Diego, CA, August 27, 28, 1981. (A83-22890 08-35) Bellingham, WA, SPIE - The
Computer Science
Performance
Mirrors, Optical Reflection, Point Spread Functions, Reflecting Telescopes, Spaceborne Telescopes, Surface Distortion, Computerized Simulation, Image Resolution, Ripples, Ultraviolet Telescopes, Wave Fronts
Scientific paper
Mirror surface ripple acts as a phase grating to diffract light out of the central maximum of the point spread function (PSF), reducing image quality. The effects of ripple on image quality are examined with the aid of computer simulations using rotationally symmetric wavefront error models, and through interferometric measurements of a mirror known to have significant surface ripple. Image quality is evaluated in terms related to the performance requirements of large orbital astronomical telescopes that must perform in both ultraviolet and visible light. Techniques for measuring and specifying ripple are discussed.
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