Specifications and design of the E-ELT M4 adaptive unit

Elise Vernet; Marc Cayrel; Norbert Hubin; Michael Mueller; Roberto Biasi; Daniele Gallieni; Matteo Tintori

doi:10.1117/12.925133

13 September 2012 Specifications and design of the E-ELT M4 adaptive unit

Elise Vernet, Marc Cayrel, Norbert Hubin, Michael Mueller, Roberto Biasi, Daniele Gallieni, Matteo Tintori

Proceedings Volume 8447, Adaptive Optics Systems III; 844761 (2012) https://doi.org/10.1117/12.925133
Event: SPIE Astronomical Telescopes + Instrumentation, 2012, Amsterdam, Netherlands

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.

Citation Download Citation

Elise Vernet, Marc Cayrel, Norbert Hubin, Michael Mueller, Roberto Biasi, Daniele Gallieni, and Matteo Tintori "Specifications and design of the E-ELT M4 adaptive unit", Proc. SPIE 8447, Adaptive Optics Systems III, 844761 (13 September 2012); https://doi.org/10.1117/12.925133

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