The Optical System of the SOFIA Telescope

Details The Optical System of the SOFIA Telescope The Optical System of the SOFIA Telescope

Jan 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999aas...19312102b&link_type=abstract

American Astronomical Society, 193rd AAS Meeting, #121.02; Bulletin of the American Astronomical Society, Vol. 31, p.663

Physics

Optics

Scientific paper

The optical system of the SOFIA telescope consists of a Cassegrain telescope with an aperture of 2.5 m and a Nasmyth focus. The central optical part of the telescope is the monolithic 2.7-m Zerodur primary mirror. The lightweighting factor is 80 The primary mirror is supported by a very stiff CFRP structure. The secondary mirror is a lightweighted SiC mirror and has a chopping mechanism. The telescope has three built-in imagers for acquisition and tracking, one main-optics sharing focal plane imager and two boresighted imagers with a wide and a fine field of view. The poster presents the current status of the development.

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