Passive primary mirror concept for SOFIA

Peter A. Jones; David F. House; Victor L. Genberg

doi:10.1117/12.210924

2 June 1995 Passive primary mirror concept for SOFIA

Peter A. Jones, David F. House, Victor L. Genberg

Proceedings Volume 2478, Space Telescopes and Instruments; (1995) https://doi.org/10.1117/12.210924
Event: SPIE's 1995 Symposium on OE/Aerospace Sensing and Dual Use Photonics, 1995, Orlando, FL, United States

Abstract

The Stratospheric Observatory for Infrared Astronomy is a planned 2.5 meter telescope that will be installed in a modified Boeing 747 aircraft and operated at altitudes above 40,000 feet. The telescope requires a primary mirror with an areal density of less than 70 kg/m² which can operate at elevations from 15 degrees to 70 degrees, and reach thermal equilibrium at -40 degrees C in less than 2 hours. A passive lightweighted monolithic primary mirror design with no active figure control has been shown to be a key element in meeting these requirements. A comparison of mirror designs using alternate mirror materials will be described.

Citation Download Citation

Peter A. Jones, David F. House, and Victor L. Genberg "Passive primary mirror concept for SOFIA", Proc. SPIE 2478, Space Telescopes and Instruments, (2 June 1995); https://doi.org/10.1117/12.210924

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