LSST telescope mount concept

Douglas R. Neill

doi:10.1117/12.672814

23 June 2006 LSST telescope mount concept

Douglas R. Neill

Proceedings Volume 6267, Ground-based and Airborne Telescopes; 62673O (2006) https://doi.org/10.1117/12.672814
Event: SPIE Astronomical Telescopes + Instrumentation, 2006, Orlando, Florida , United States

Abstract

The Large Synoptic Survey Telescope (LSST), ref 1, is a large (8.4M) wide-field (3.5 degree) survey telescope. The wide-field of view is accomplished by a three mirror system combined with a three lens camera. The tertiary mirror is inscribed in the primary mirror and the two will be fabricated as a single unit. The camera is located in front of the secondary mirror, which is in a conventional location. This configuration, along with the small f# of 1.23 produces a very compact system relative to similar aperture telescopes. The survey mission of the telescope requires a short slew and settling time of 5 seconds for a 3.5 degree slew. This is significantly faster than most similar aperture telescopes. Meeting this requirement is facilitated by the compact configuration which produces high natural frequencies and low moments of inertia. Maintainability also demands that the mount allow for the removal of all optical components for coating.

Citation Download Citation

Douglas R. Neill "LSST telescope mount concept", Proc. SPIE 6267, Ground-based and Airborne Telescopes, 62673O (23 June 2006); https://doi.org/10.1117/12.672814

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