Optical configurations for very large telescopes - The TEMOS concept

Details Optical configurations for very large telescopes - The TEMOS concept Optical configurations for very large telescopes - The TEMOS concept

Jul 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987crasb.305..445b&link_type=abstract

Academie des Sciences (Paris), Comptes Rendus, Serie II - Mecanique, Physique, Chimie, Sciences de l'Univers, Sciences de la Ter

Physics

Optics

2

Cassegrain Optics, Mounting, Tandem Mirrors, Telescopes, Electro-Optics, Mosaics, Optical Properties, Phased Arrays

Scientific paper

An optical design concept for very large telescopes, TEMOS, is proposed which takes advantage of a newly discovered optomechanical property of distortion. This property makes possible an increase in the collecting area of a previously described telescope with a 'vase-bottom' secondary (Baranne and Lemaitre, 1980) to a size corresponding to a classical telescope of more than 8 m diameter without optical modifications. With the TEMOS concept, the usual parasitic light is avoided by using a tubular baffle in the telescope to completely isolate the rays. Furthermore, noise due to distortion by the optical surfaces is minimized, and the noise due to diffracted light is eliminated.

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