1 June 1994 REOSC starts to work on the first VLT mirror
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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.
© (1994) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Jean Espiard, Jean Espiard, Roland Geyl, Roland Geyl, } "REOSC starts to work on the first VLT mirror", Proc. SPIE 2199, Advanced Technology Optical Telescopes V, (1 June 1994); doi: 10.1117/12.176171; https://doi.org/10.1117/12.176171
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