Fabrication of blanks, figuring, polishing and testing of astronomical mirrors for SALT, VST, LAMOST and other projects

Magomed A. Abdulkadyrov

doi:10.1117/12.2284009

19 May 2003 Fabrication of blanks, figuring, polishing and testing of astronomical mirrors for SALT, VST, LAMOST and other projects

Magomed A. Abdulkadyrov

Author Affiliations +

Proceedings Volume 10314, Optifab 2003: Technical Digest; 103140K (2003) https://doi.org/10.1117/12.2284009
Event: OptiFab 2003, 2003, Rochester, NY, United States

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.

Citation Download Citation

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); https://doi.org/10.1117/12.2284009

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