The Optical and Mechanical Design of the LSST Camera

Details The Optical and Mechanical Design of the LSST Camera The Optical and Mechanical Design of the LSST Camera

Dec 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004aas...20510805h&link_type=abstract

American Astronomical Society Meeting 205, #108.05; Bulletin of the American Astronomical Society, Vol. 36, p.1528

Physics

Optics

Scientific paper

The LSST Camera requires: three large (1.6 m, 1.1 m and 0.73 m) refractive optics; five 0.78 m auto-changing color filters; a mechanical shutter with 0.76 m aperture; a tiled sensor array at focus spanning 0.64 m with 3.2e9 pixels and their associated electrical devices with many thousands of interconnections; and various other items too numerous to mention. The optical elements require precise alignment and in some cases actuation such as focus adjustment. For example, the focal plane array, which operates at 180 K, must be flat to 10 μm P-V for any orientation of the telescope. Work has been underway to allocate space and package these items, devise workable concepts for the mechanisms, and design structural elements (e.g., optic mounts and housings) that can be manufactured precisely and adjusted as necessary to meet alignment and stability requirements. This poster presents work to date relating to the optical and mechanical design of the LSST camera.

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