Two-mirror telescope design for stray-light sensitive infrared applications

Details Two-mirror telescope design for stray-light sensitive infrared applications Two-mirror telescope design for stray-light sensitive infrared applications

Sep 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995spie.2553..416s&link_type=abstract

Proc. SPIE Vol. 2553, p. 416-424, Infrared Spaceborne Remote Sensing III, Marija S. Scholl; Bjorn F. Andresen; Eds.

Physics

Scientific paper

Established telescope design methods used in the infrared-wavelength region are not responsive to the specific imaging requirements of this wavelength interval. A Gregorian telescope using off-axis mirror segments, and a real focus for the cold stop placement is proposed for the detection of faint IR sources. Exact ray trace equations are given for a general ray propagating through two coupled confocal spheroids. Relationships between the spheroid mirror parameters, and the object and image distances are presented in a graphical form to facilitate the first order telescope design.

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