07.12.2008. M1 Secondary Mirror Manufacturing for VISTA Project JSC LZOS is carrying out work on the manufacturing of the M1 primary hyperbolic Mirror with the 4100 mm diameter for the VISTA project (Visible and Infrared Survey Telescope for Astronomy). Vertex radius of Mirror is 8094 mm (F/0.98), conic constant -1.129792 and asphericity about 880 microns. The current situation of the work carried out is presented in the manuscript. ... more details ...
		07.12.2008. M2 Secondary Mirror Manufacturing for VISTA Project “LZOS”, JSC has completed the fabrication of M2 Primary mirror for VISTA Project (Visible and  Infrared Survey Telescope for Astronomy). M2 Mirror has diameter 1241mm and hyperbolic figure surface. The Vertex Radius of the Mirror is 4018.81mm (F/0.96), the Conical constant is -5.548792, aspherical value is 306 μm. The Project works results are presented ... more details ...
		06.06.2004. Manufacturing of primary mirrors from Sitall CO-115M for European projects TTL, NOA and VST. JSC LZOS under the contract with Carl Zeiss Jena, Germany produced three 2050 mm primary hyperbolic mirrors for TTL project (Telescope Technologies Limited, Great Britain) during 1997-2001 ... 2280 mm primary mirror for NOA project (Astronomical Institute – National Observatory of Athens, Greece) was produced ... 2650 mm primary mirror for VST project (VLT Survey Telescope, Osservatorio Astronomico di Capodimonte Napoli) was produced ... more details ...
		10.06.2004. Manufacturing of secondary mirrors from Sitall CO-115M for European projects TTL, NOA and VST. JSC LZOS under the contract with Carl Zeiss Jena, Germany produced 645 mm secondary mirror for TTL project (Telescope Technologies Limited, Great Britain) during 1999-2001 ... 753 mm (F/2) secondary mirror for NOA project (Astronomical Institute – National Observatory of Athens, Greece) was produced ... 938 mm (F/2.3) secondary mirror for VST project (VLT Survey Telescope, Osservatorio Astronomico di Capodimonte Napoli) was produced ... more details ...
		15.10.2004. Fabrication of Blanks, Figuring, Polishing and Testing of Solid and Segmented Astronomical Mirrors. JSC "LZOS" production facilities allow manufacturing optics from casting and annealing of blanks of Sitall CO-115M to final figuring and polishing. LZOS's Sitall capacities allow to produce over 100 tons a year. At the resent time Sitall is widely used for manufacturing high-precision astronomical mirrors here at LZOS as well as at other companies ... more details ...
		9.11.2004. Interference Test Procedures for Telescopic Mirrors. Concave surfaces are tested with lens and lens-mirror wavefront correctors of special design. The Hindle test set-up is used for convex hyperbolic surfaces. For high-aperture hyperbolic surface, we use two Hindle spheres to test one mirror. At the present time, we have developed the test procedures for high-aperture surfaces of primary and secondary mirrors for the VISTA Project ... more details ...
		21.11.2004. Non-traditional technologies to fabricate lightweighted astronomical mirrors with high stability of surface shape. In the performance of tasks of the high-resolving optical systems manufacturing, the significant funds are required. This fact can be a reason limiting further development of astronomical research. The aim of this paper is demonstration of the ways to reduce the fabrication cost of astronomical instrument mirrors ... more details ...
		23.11.2004. Computer-controlled fabrication of large-size ground and space-based optics from glass ceramic Sitall CO-115M. To create ground and space-based telescope mirror systems JSC LZOS (Lytkarino Optical Glass Plant), Russia, when manufacturing mirrors, uses widely glass ceramic material Sitall C0-115M ... To solve successfully the task of complicated optical system fabrication, it is necessary to improve the manufacturing methods of the system components developing computer-controlled methods of surface polishing, which allow to run controlled processes of surface finishing up to the high quality ... more details ...

   27.06.2004. GRANTECAN Telescope M3 Mirror Manufacturing. ZIP-MSPowerPoint (1326k).
   27.06.2004. M1 and M2 Mirrors Manufacturing for VISTA Telescope. ZIP-MSPowerPoint (2585k).