Physics – Optics
Scientific paper
Jun 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992spie.1762...33h&link_type=abstract
In: Infrared technology XVIII; Proceedings of the Meeting, San Diego, CA, July 19-22, 1992 (A93-32826 12-35), p. 33-38.
Physics
Optics
Geometrical Optics, Light Scattering, Mathematical Models, Mirrors, Reflecting Telescopes, Baffles, Finite Element Method, Metal Matrix Composites, Polarized Light, Scale Models
Scientific paper
Design approches to a space-based celestial telescope, called the Advanced Visible Telescope developed at the University of Arizona Optical Sciences Center, are reviewed with particular attention given to stray light reduction. The major design considerations intended to provide a stiff mounting structure for the optics and adjustments that simplify system alignment, and the introduction of baffles to provide stray-light rejection for off-axis sources are discussed. Two stray light rejection modeling methods are compared which were developed under SOAR (a program for rapid calculation of stray light on the IBM PC) and APART (a first order deterministic stray radiation analysis program). It is concluded that below the critical shading angle both programs show similar results but above critical shading angles there were discrepancies in results.
Hansen Eric
Wolfe William L.
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