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Mal'kin A.A.,Lytkarino Optical Glass Factory
Journal of Optical Technology (A Translation of Opticheskii Zhurnal) | Year: 2016

A set of macros written in the internal programming language of ZEMAX is proposed, the use of which makes it possible to significantly reduce the time to perform calculations and to qualitatively evaluate centered optical systems. © 2016 Optical Society of America.


Abdulkadyrov M.A.,Lytkarino Optical Glass Factory | Vladimirov N.M.,Lytkarino Optical Glass Factory | Dobrikov N.S.,Lytkarino Optical Glass Factory | Patrikeev V.E.,Lytkarino Optical Glass Factory | Semenov A.P.,Lytkarino Optical Glass Factory
Journal of Optical Technology (A Translation of Opticheskii Zhurnal) | Year: 2016

The following are the most important phases in the development and optimization of ultralightweight mirrors: materials selection, determination of the type of cells to be used in the weight-reduction structure, and determining the parameters of these cells. Optimizing the mirror design via a calculation using the finite-element method enables us to optimize the parameters of the cells used in the weight-reduction structure in order to achieve maximum structural rigidity at minimum mass. The variable parameters are as follows: Thickness of working surface, size and shape of cells in the weight-reduction structure, and rib thickness. © 2016 Optical Society of America.


Abdulkadyrov M.A.,Lytkarino Optical Glass Factory | Patrikeev V.E.,Lytkarino Optical Glass Factory | Semenov A.P.,Lytkarino Optical Glass Factory
Journal of Optical Technology (A Translation of Opticheskii Zhurnal) | Year: 2014

This paper describes a method for determining the absolute profile of the ground aspheric surface of large astronomical mirrors, using a linear three-point spherometer successively displaced perpendicular to the direction from the center to the edge of the item, as well as a method for determining the vertex radius. Examples are given of the successful use of these methods. © 2015 Optical Society of America.


Ignatov A.N.,Lytkarino Optical Glass Factory | Lebedeva V.A.,Lytkarino Optical Glass Factory | Pozdnyakov A.E.,Lytkarino Optical Glass Factory | Surkova V.F.,Lytkarino Optical Glass Factory
Journal of Optical Technology (A Translation of Opticheskii Zhurnal) | Year: 2013

A small-capacity technology for producing various types of electrovacuum glasses has been developed. The manufacture of S48-3 high-temperature glass involved the most complex technology. After investigating various methods of decolorizing this type of glass, the evacuation method was chosen. © 2013 Optical Society of America.


Semenov A.P.,Lytkarino Optical Glass Factory | Abdulkadyrov M.A.,Lytkarino Optical Glass Factory | Patrikeev V.E.,Lytkarino Optical Glass Factory | Vorobyov A.S.,Lytkarino Optical Glass Factory | Sharov J.A.,Lytkarino Optical Glass Factory
Journal of Optical Technology (A Translation of Opticheskii Zhurnal) | Year: 2013

This paper discusses the features of methods of testing aspheric primary mirrors of telescopes with lens-based, mirror-lens-based, and holographic correctors. Methods are described for simultaneously testing the same surface of an optical item with different correctors to achieve and confirm the required parameters of the aspheric (vertex radius and conic constant). Results are given for testing the correctors with a holographic mirror simulator to verify the fabrication accuracy of the correctors themselves and, if necessary, of the wave-front correction of the lens correctors. © 2013 Optical Society of America.


Abdulkadyrov M.A.,Lytkarino Optical Glass Factory | Belousov S.P.,Lytkarino Optical Glass Factory | Pridnya V.V.,Lytkarino Optical Glass Factory | Polyanchikov A.V.,Lytkarino Optical Glass Factory | Semenov A.P.,Lytkarino Optical Glass Factory
Journal of Optical Technology (A Translation of Opticheskii Zhurnal) | Year: 2013

This paper discusses the automatic shaping technology for the convex hyperbolic surfaces of the secondary mirrors of telescopes with asphericity to 400 μm, 1 m or more in diameter. It describes a method of testing a convex mirror with an auxiliary Hindle sphere and of optimizing this method by using two Hindle spheres of smaller diameter for one item instead of one sphere of greater diameter. A method is proposed of joining the topographical maps obtained from the results of testing the surface of a hyperboloid with two spheres. The features of fabricated auxiliary equipment (load-bearing fixtures, containers, devices for cementing interface elements) are presented. © 2013 Optical Society of America.


Mogil'naya L.G.,Lytkarino Optical Glass Factory | Zinov'eva O.B.,Lytkarino Optical Glass Factory | Firsova Yu.A.,Lytkarino Optical Glass Factory | Gulyukin M.N.,Lytkarino Optical Glass Factory
Journal of Optical Technology (A Translation of Opticheskii Zhurnal) | Year: 2013

The Lytkarino Optical Glass Factory manufactures various types of colored optical glasses: yellow, orange, and red glasses and glasses that are transparent in the IR region, as well as neutral-density and light-scattering milk glasses. The factory has introduced new equipment to improve the melting, founding, and annealing regimes for the high quality of these glasses. © 2013 Optical Society of America.


Semenov A.P.,Lytkarino Optical Glass Factory | Abdulkadyrov M.A.,Lytkarino Optical Glass Factory | Belousov S.P.,Lytkarino Optical Glass Factory | Patrikeev A.P.,Lytkarino Optical Glass Factory | And 2 more authors.
Journal of Optical Technology (A Translation of Opticheskii Zhurnal) | Year: 2013

This paper discusses the technology involved in automatically shaping the surfaces of primary telescope mirrors up to 4 m in diameter and with asphericity up to 1000 μm. It describes methods for monitoring the automatic grinding of surfaces by IR interferometry, automatic polishing and finishing of surfaces with wave-front correctors, and a method of simultaneously monitoring various designs of correctors to achieve and confirm the required parameters of an aspheric with the same surface. A description is given of the features of the fabricated auxiliary equipment (membranepneumatic actuator for unloading the mirror, load-bearing equipment, containers, and devices for cementing interface elements). © 2013 Optical Society of America.


Korneeva E.V.,Lytkarino Optical Glass Factory | Marshakov B.G.,Lytkarino Optical Glass Factory | Fufurin V.V.,Lytkarino Optical Glass Factory | Shmidt A.I.,Lytkarino Optical Glass Factory
Journal of Optical Technology (A Translation of Opticheskii Zhurnal) | Year: 2013

A recent development among next-generation microscopes that use zoom systems to smoothly vary the magnification was the MBS-14 stereoscopic zoom microscope. This article lists its characteristics and optical layout, the optical layout of the eyepiece, and a description of the zoom system, with a graph of the law of motion of its movable components, as well as a list and description of the accessories of the microscope. © 2013 Optical Society of America.


Semenov A.P.,Lytkarino Optical Glass Factory
Journal of Optical Technology (A Translation of Opticheskii Zhurnal) | Year: 2015

This paper describes a method of determining the decentering of an aspheric surface relative to the geometrical center of an astronomical mirror by means of a three-point linear spherometer, also used to determine deviations of the profile of a ground surface from the specified surface. Examples are given of the successful use of the device. © 2015 Optical Society of America.

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