Factors, affecting mirror figure stability, and methods used to eliminate them

Magomed A. Abdulkadyrov; Nikolay S. Dobrikov; Alexandr N. Ignatov; Vladimir E. Patrikeev

doi:10.1117/12.2561085

13 December 2020 Factors, affecting mirror figure stability, and methods used to eliminate them

Magomed A. Abdulkadyrov, Nikolay S. Dobrikov, Alexandr N. Ignatov, Vladimir E. Patrikeev

Proceedings Volume 11451, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation IV; 114514C (2020) https://doi.org/10.1117/12.2561085
Event: SPIE Astronomical Telescopes + Instrumentation, 2020, Online Only

Conference Poster

Abstract

Substrate material is important while manufacturing of large-dimensioned optical mirrors for ground and space applications. The properties of Astrositall, its dimensional stability, design features are considered. Various types of supporting cells and optical components bases are used in the process of surfaces figuring. Applying of membranepneumatic support to base the mirror in the course of working surface testing is considered. However, in some cases it is necessary to support the mirror basing it on glued interface elements. In such case, surface figure difference between standard and manufacturing support cell, which is taken into account during figuring, is estimated via modeling.

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Magomed A. Abdulkadyrov, Nikolay S. Dobrikov, Alexandr N. Ignatov, and Vladimir E. Patrikeev "Factors, affecting mirror figure stability, and methods used to eliminate them", Proc. SPIE 11451, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation IV, 114514C (13 December 2020); https://doi.org/10.1117/12.2561085

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