Features of roughness evaluation of optical surfaces
https://doi.org/10.17586/0021-3454-2023-66-6-524-527
Abstract
The need to introduce the root-mean-square roughness Rq into regulatory and design documents for optical surfaces is substantiated experimentally. It is noted that this parameter value makes it possible to estimate the energy losses associated with radiation scattering. The results of comparison of Rq and the arithmetic mean deviation of the profile Ra of optical surfaces, which are formed by polishing and diamond micro-turning, are presented. The absence of an unambiguous relationship between these characteristics is shown. The expediency of transition from 2D-metry to 3D-metry when normalizing and measuring roughness is observed; in particular, this is relevant in the case of a lack of symmetry in the roughness topography.
About the Authors
V. M. Medunetsky
ITMO University
Russian Federation
Russian Federation
Viktor M. Medunetskiy — Dr. Sci., Professor; ITMO University.
St. Petersburg
S. V. Solk
Research Institute of Optoelectronic Instrumentation
Russian Federation
Russian Federation
Sergey V. Solk — Dr. Sci.; JSC “Scientific Research Institute for Optoelectronic Instrument Engineering”, Deputy Head of Department.
Leningrad region, Sosnovy Bor
L. A. Glushchenko
Research Institute of Optoelectronic Instrumentation
Russian Federation
Russian Federation
Larisa А. Gluschenko — PhD; JSC “Scientific Research Institute for Optoelectronic Instrument Engineering”.
Leningrad region, Sosnovy Bor
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Review
For citations:
Medunetsky V.M., Solk S.V., Glushchenko L.A. Features of roughness evaluation of optical surfaces. Journal of Instrument Engineering. 2023;66(6):524-527. (In Russ.) https://doi.org/10.17586/0021-3454-2023-66-6-524-527
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