REOSC starts to work on the first VLT mirror

Jean Espiard; Roland Geyl

doi:10.1117/12.176171

1 June 1994 REOSC starts to work on the first VLT mirror

Jean Espiard, Roland Geyl

Proceedings Volume 2199, Advanced Technology Optical Telescopes V; (1994) https://doi.org/10.1117/12.176171
Event: 1994 Symposium on Astronomical Telescopes and Instrumentation for the 21st Century, 1994, Kailua, Kona, HI, United States

Abstract

REOSC has been awarded by the European Southern Observatory (E.S.O.), in July 1989, a contract to transport, grind, polish, figure and test the four 8.2m primary mirrors of the European Very Large Telescope (VLT). The following tasks are included in this contract: - the design and manufacture ofthe mirror handling tool and shipping container, the mirror blank transportation from SCHOTT plant in Mainz to REOSC optical shop, - the design, manufacture and bonding onto the mirror of the axial and lateral interfaces between the mirror and the actuators of the mirror cell lateral and axial supports, - the grinding, polishing, figuring and testing of the four mirrors, -the packing ofthe achieved mirror in the container. Furthermore, in the framework of this contract, a new optical shop specially adapted to mill, grind, polish and test 8m class mirrors has been designed and built. The first 8.2m mirror blank has been successfiuly transported last July from Mainz to REOSC's optical shop and the subject of this paper is to give a short description of this new plant and its equipment and the first results obtained by spherornetry after the first rough mirror grinding.

Citation Download Citation

Jean Espiard and Roland Geyl "REOSC starts to work on the first VLT mirror", Proc. SPIE 2199, Advanced Technology Optical Telescopes V, (1 June 1994); https://doi.org/10.1117/12.176171

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available