Optomechanical design of the Discovery Channel Telescope prime focus assembly

Details Optomechanical design of the Discovery Channel Telescope prime focus assembly Optomechanical design of the Discovery Channel Telescope prime focus assembly

Sep 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004spie.5495..216d&link_type=abstract

Astronomical Structures and Mechanisms Technology. Edited by Antebi, Joseph; Lemke, Dietrich. Proceedings of the SPIE, Volume 54

Computer Science

Performance

2

Scientific paper

The Discovery Channel Telescope (DCT) is a 4.2m aperture telescope with a unique front end pod assembly that incorporates a secondary mirror assembly on one end, and a prime focus corrector group with focal plane instrument on the other. By flipping the pod end-for-end, the DCT is quickly converted from an f/6.13 Ritchey-Chrétien telescope with a 21 arcminute field of view, to an f/1.9 two degree wide field prime focus camera. This paper describes the conceptual opto-mechanical design and performance assessment of the Prime Focus Assembly (PFA), including the pod interfaces, structures, optic mounts and the functions and configurations of the various mechanisms within the pod.

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