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Proceedings Paper

Manufacturing optics of a 2.5m telescope
Author(s): F. Poutriquet; P. Plainchamp; J. Billet; B. Pernet; T. Lagrange; C. Cavadore; JL Carel; H. Leplan; E. Ruch; R. Geyl; JC Jouve
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Paper Abstract

Over the past few years, Sagem REOSC has designed, manufactured and tested a 2.5m ALT/AZ telescope and its complete observatory. The next stage - integration - should occur in 2012. The aim of this paper is to develop the different stages of the project from technical and management's point of view. The telescope is a 2.5m-class telescope with an aperture of F/8. It is composed of a 2.5m primary mirror made of Zerodur©, a silica secondary mirror and a rotating tertiary mirror that allows pointing at Nasmyth foci. In addition, a wide field corrector can be adapted either at Cassegrain focus or at Nasmyth focus. Results achieved on the realization of such optics will be presented. An emphasis on the concurrent engineering and the problem solving approach will also be presented.

Paper Details

Date Published: 17 September 2012
PDF: 7 pages
Proc. SPIE 8444, Ground-based and Airborne Telescopes IV, 84441W (17 September 2012); doi: 10.1117/12.926106
Show Author Affiliations
F. Poutriquet, Sagem Défense Sécurité (France)
P. Plainchamp, Sagem Défense Sécurité (France)
J. Billet, Sagem Défense Sécurité (France)
B. Pernet, Sagem Défense Sécurité (France)
T. Lagrange, Sagem Défense Sécurité (France)
C. Cavadore, Sagem Défense Sécurité (France)
JL Carel, Sagem Défense Sécurité (France)
H. Leplan, Sagem Défense Sécurité (France)
E. Ruch, Sagem Défense Sécurité (France)
R. Geyl, Sagem Défense Sécurité (France)
JC Jouve, Sagem Défense Sécurité (France)


Published in SPIE Proceedings Vol. 8444:
Ground-based and Airborne Telescopes IV
Larry M. Stepp; Roberto Gilmozzi; Helen J. Hall, Editor(s)

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