УДК: 535.4, 681.7.02-04, 681.787

Technological features of the fabrication of the primary mirrors of telescopes

Semenov, A.P., Abdulkadyrov, M.A., Belousov, S.P., Patrikeev, A.P., Patrikeev, V.E., Sharov, Y.A.

Publication in Journal of Optical Technology

For Russian citation (Opticheskii Zhurnal):

Семенов А.П., Абдулкадыров М.А., Белоусов С.П., Патрикеев А.П., Патрикеев В.Е., Шаров Ю.А. Технологические особенности изготовления главных зеркал телескопов // Оптический журнал. 2013. Т. 80. № 4. С. 8–17.

Semenov A.P., Abdulkadyrov M.A., Belousov S.P., Patrikeev A.P., Patrikeev V.E., Sharov Yu.A. Technological features of the fabrication of the primary mirrors of telescopes [in Russian] // Opticheskii Zhurnal. 2013. V. 80. № 4. P. 8–17.

For citation (Journal of Optical Technology):

A. P. Semenov, M. A. Abdulkadyrov, S. P. Belousov, A. P. Patrikeev, V. E. Patrikeev, and Y. A. Sharov, "Technological features of the fabrication of the primary mirrors of telescopes," Journal of Optical Technology. 80(4), 207-213 (2013). https://doi.org/10.1364/JOT.80.000207

Abstract:

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 (membrane-pneumatic actuator for unloading the mirror, load-bearing equipment, containers, and devices for cementing interface elements).

Keywords:

astronomical aspheric mirrors, controlled shaping, interference monitoring

OCIS codes: 220.0220, 220.0230, 220.4610, 350.1260

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