Physics – Optics
Scientific paper
May 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991spie.1522..103s&link_type=abstract
In: Optical space communication II; Proceedings of the Meeting, Munich, Germany, June 10, 11, 1991 (A93-32077 12-17), p. 103-110
Physics
Optics
Cassegrain Optics, Field Of View, Mirrors, Optical Communication, Telescopes, Image Processing, Space Communication
Scientific paper
The eccentric three-mirror telescope presently proposed for free space optical communications exhibits diffraction-limited image performance for a relatively large field of view, allowing the design of a simpler coarse-pointing mechanism and a wider range for a fine-pointing mechanism without associated losses of antenna gain. Light baffling in this telescope design is excellent, and allows a reduction of stray light to a minimum; its system parameters are less sensitive than those of two-mirror telescopes, allowing looser tolerances and simplifying structural design.
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