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Proceedings Paper

The field stabilization and adaptive optics mirrors for the European Extremely Large Telescope
Author(s): Elise Vernet; Lieselotte Jochum; Paolo La Penna; Norbert Hubin; Riccardo Muradore; Joan Manel Casalta; Ivar Kjelberg; Jean-Christophe Sinquin; Frédéric Locre; Pierre Morin; Raphaël Cousty; Jean-Marie Lurçon; Jean-Jacques Roland; Bruno Crepy; Eric Gabriel; Roberto Biasi; Mario Andrighettoni; Gerald Angerer; Daniele Gallieni; Marco Mantegazza; Matteo Tintori; Emilio Molinari; Daniela Tresoldi; Giorgio Toso; Paolo Spanó; Marco Riva; Giuseppe Crimi; Armando Riccardi; Gilles Marque; Jean-Louis Carel; Eric Ruch
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Paper Abstract

A 42 meters telescope does require adaptive optics to provide few milli arcseconds resolution images. In the current design of the E-ELT, M4 provides adaptive correction while M5 is the field stabilization mirror. Both mirrors have an essential role in the E-ELT telescope strategy since they do not only correct for atmospheric turbulence but have also to cancel part of telescope wind shaking and static aberrations. Both mirrors specifications have been defined to avoid requesting over constrained requirements in term of stroke, speed and guide stars magnitude. Technical specifications and technological issues are discussed in this article. Critical aspects and roadmap to assess the feasibility of such mirrors are outlined.

Paper Details

Date Published: 10 July 2008
PDF: 12 pages
Proc. SPIE 7015, Adaptive Optics Systems, 70150S (10 July 2008); doi: 10.1117/12.787855
Show Author Affiliations
Elise Vernet, European Southern Observatory (Germany)
Lieselotte Jochum, European Southern Observatory (Germany)
Paolo La Penna, European Southern Observatory (Germany)
Norbert Hubin, European Southern Observatory (Germany)
Riccardo Muradore, European Southern Observatory (Germany)
Joan Manel Casalta, NTE S.A. (Spain)
Ivar Kjelberg, CSEM (Switzerland)
Jean-Christophe Sinquin, CILAS (France)
Frédéric Locre, CILAS (France)
Pierre Morin, CILAS (France)
Raphaël Cousty, CILAS (France)
Jean-Marie Lurçon, CILAS (France)
Jean-Jacques Roland, CILAS (France)
Bruno Crepy, CILAS (France)
Eric Gabriel, AMOS (Belgium)
Roberto Biasi, Microgate (Italy)
Mario Andrighettoni, Microgate (Italy)
Gerald Angerer, Microgate (Italy)
Daniele Gallieni, A.D.S. International (Italy)
Marco Mantegazza, A.D.S. International (Italy)
Matteo Tintori, A.D.S. International (Italy)
Emilio Molinari, INAF Osservatorio Astrofisico di Brera (Italy)
Daniela Tresoldi, INAF Osservatorio Astrofisico di Brera (Italy)
Giorgio Toso, INAF Osservatorio Astrofisico di Brera (Italy)
Paolo Spanó, INAF Osservatorio Astrofisico di Brera (Italy)
Marco Riva, INAF Osservatorio Astrofisico di Brera (Italy)
Giuseppe Crimi, INAF Osservatorio Astrofisico di Brera (Italy)
Armando Riccardi, INAF Osservatorio Astrofisico di Arcetri (Italy)
Gilles Marque, Sagem Défense Sécurité (France)
Jean-Louis Carel, Sagem Défense Sécurité (France)
Eric Ruch, Sagem Défense Sécurité (France)

Published in SPIE Proceedings Vol. 7015:
Adaptive Optics Systems
Norbert Hubin; Claire E. Max; Peter L. Wizinowich, Editor(s)

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