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Proceedings Paper

VLT primary mirrors: mirror production and measured performance
Author(s): Philippe Dierickx; Daniel Enard; Roland Geyl; Jacques Paseri; Marc Cayrel; P. Beraud
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Paper Abstract

The primary mirrors of the ESO 8-m class very large telescopes are actively supported, thin Zerodur menisci, 8 - .2-m diameter. The mirror blanks are produced by SCHOTT; the optical figuring, manufacturing and assembling of interfaces and auxiliary equipment are done by REOSC. Three mirror blanks have already been delivered by SCHOTT to REOSC. In November 1995 the project met a critical and very successful milestone, with the completion and testing of the first finished VLT primary mirror at REOSC. Specifications, manufacturing and above all testing methodology are addressed, and the final results are detailed. Optical performance at telescope level is assessed as well.

Paper Details

Date Published: 21 March 1997
PDF: 8 pages
Proc. SPIE 2871, Optical Telescopes of Today and Tomorrow, (21 March 1997); doi: 10.1117/12.269061
Show Author Affiliations
Philippe Dierickx, European Southern Observatory (Germany)
Daniel Enard, European Southern Observatory (Germany)
Roland Geyl, REOSC-Group SFIM (France)
Jacques Paseri, REOSC-Group SFIM (France)
Marc Cayrel, REOSC-Group SFIM (France)
P. Beraud, REOSC-Group SFIM (France)


Published in SPIE Proceedings Vol. 2871:
Optical Telescopes of Today and Tomorrow
Arne L. Ardeberg, Editor(s)

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