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Proceedings Paper

Infrared Space Observatory optical subsystem
Author(s): Christian Singer; Jean Alain Massoni; Bernard Mossbacher; Ciro Cinotti
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Paper Abstract

The paper discusses the Infrared Space Observatory (ISO) optical subsystem, a cryogenically cooled telescope featuring main baffle and sunshade. The telescope, a 60-cm Ritchey-Chretien type, focuses the beam to the four scientific instruments located in its focal plane. The extremely low temperature, 1.8 K, is provided by the payload module cryostat, filled with superfluid He. The design of these elements is supported by different mathematical models and by dedicated elementary tests linked to operation in the cryogenic environment. Tests performed at ambient and cryogenic temperatures demonstrate the good behavior of the optical subsystems for thermal, mechanical, and optical performance.

Paper Details

Date Published: 1 September 1991
PDF: 10 pages
Proc. SPIE 1494, Space Astronomical Telescopes and Instruments, (1 September 1991); doi: 10.1117/12.46729
Show Author Affiliations
Christian Singer, Aerospatiale (France)
Jean Alain Massoni, Aerospatiale (France)
Bernard Mossbacher, MBB Deutsche Aerospace (Germany)
Ciro Cinotti, European Space Agency (Netherlands)

Published in SPIE Proceedings Vol. 1494:
Space Astronomical Telescopes and Instruments
Pierre Y. Bely; James B. Breckinridge, Editor(s)

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