Methods used to test surface figure and optical parameters of axial and off-axis surfaces of large-sized mirrors at the stage of figuring

Autor:	Andrey V. Polyanchikov, Vladimir E. Patrikeev, Magomed A. Abdulkadyrov, Alexandr N. Ignatov, Vitaliy V. Pridnya, Nikolay S. Dobrikov, Ruslan K. Nasyrov, Aleksandr P. Semenov
Rok vydání:	2020
Předmět:	Figuring Surface (mathematics) Vertex (computer graphics) Materials science business.industry Holography Physics::Optics Polishing law.invention Grinding Interferometry Optics law Position (vector) business
Zdroj:	Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation IV.
DOI:	10.1117/12.2561082
Popis:	JSC LZOS applies various mechanical and optical methods to test optics at all stages of figuring, from milling and grinding to polishing stage. Computer Generated Holograms (CGH) are successfully applied at the polishing stage for the following purposes: testing of large-size optical components, on- and off-axis surfaces; alignment with respect to interferometer; defining of an aspherical surface optical vertex position with respect to the geometrical center for optical systems alignment. All this allows manufacturing of large-size aspherical on- and off-axis astronomical and space mirrors with high accuracy.
Databáze:	OpenAIRE
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