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Proceedings Paper

Specifications and design of the E-ELT M4 adaptive unit
Author(s): Elise Vernet; Marc Cayrel; Norbert Hubin; Michael Mueller; Roberto Biasi; Daniele Gallieni; Matteo Tintori
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Paper Abstract

A 40 meters class telescope does require adaptive optics to provide few milli arcseconds resolution images. In the current design of the E-ELT, M4 provides adaptive correction and has also to cancel part of telescope wind shaking and static aberrations. The 2.4 meters adaptive mirror will provide as well Nasmyth focus selection. We will present the main design drivers and the main specifications quaternary mirror will have to meet. We will discuss what the challenges are in term of stability and performance of the associated key technologies. We will finally describe the current baseline design and the required schedule and work plan to adequately manufacture the E-ELT quartenary mirror.

Paper Details

Date Published: 13 September 2012
PDF: 8 pages
Proc. SPIE 8447, Adaptive Optics Systems III, 844761 (13 September 2012); doi: 10.1117/12.925133
Show Author Affiliations
Elise Vernet, European Southern Observatory (Germany)
Marc Cayrel, European Southern Observatory (Germany)
Norbert Hubin, European Southern Observatory (Germany)
Michael Mueller, European Southern Observatory (Germany)
Roberto Biasi, Microgate S.r.l. (Italy)
Daniele Gallieni, A.D.S. International S.r.l. (Italy)
Matteo Tintori, A.D.S. International S.r.l. (Italy)

Published in SPIE Proceedings Vol. 8447:
Adaptive Optics Systems III
Brent L. Ellerbroek; Enrico Marchetti; Jean-Pierre Véran, Editor(s)

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