19 May 2003 Fabrication of blanks, figuring, polishing and testing of astronomical mirrors for SALT, VST, LAMOST and other projects
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Abstract
During 1997-2002 JSC "LZOS" has fabricated a number of astronomical mirrors under the contracts with Carl Zeiss Jena, Germany such as four primary mirrors with hyperbolic figure of 2050mm (F/3) in diameter and two secondary mirrors of 645mm (F/2.5) in diameter for Telescope Technologies Ltd, UK, primary mirror of 2280mm(F/2.3) and secondary mirror of 753mm (F/2) for NOA telescope (Astronomical Institute - National Observatory of Athens, Greece), primary mirror of 2650mm (F/1.8) and secondary mirror of 938mm (F/2.3) with an asphericity of 1001.tm for the VST telescope (VLT Survey Telescope). We have completed a number of astronomical mirrors with diameters up to 1300mm for some European countries and the USA. The rms surface quality of all of the mirrors was in the range from 9 to l2nm. We used computer controlled figuring, polishing and testing. All mirrors were made of Sitall CO-115M, producing by LZOS, some of them were of Zerodur. Our current projects are manufacturing primary mirror segment blanks for SALT project, figuring and polishing of the LAMOST Mb submirrors.
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Magomed A. Abdulkadyrov, Magomed A. Abdulkadyrov, } "Fabrication of blanks, figuring, polishing and testing of astronomical mirrors for SALT, VST, LAMOST and other projects", Proc. SPIE 10314, Optifab 2003: Technical Digest, 103140K (19 May 2003); doi: 10.1117/12.2284009; https://doi.org/10.1117/12.2284009
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