Measuring System for Inspection of the Germanium Aspherical Lenses Using the UTM-250 Ultra-Precision Machines
- Authors: Zakharevich E.M.1, Lapshin V.V.1, Shavva M.A.1, Poshekhonov R.A.2, Volkov P.V.3
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Affiliations:
- Aspherica Scientific and Production Association LLC
- Bauman Moscow State Technical University
- Technological Electronic Optical Systems LLC
- Issue: Vol 19, No 2 (2025)
- Pages: 116-129
- Section: Technologies & Technology Equipment
- URL: https://journals.eco-vector.com/1993-7296/article/view/680330
- DOI: https://doi.org/10.22184/1993-7296.FRos.2025.19.2.116.129
- ID: 680330
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Abstract
The article describes a homegrown embedded measuring system for the shape inspection of optical parts that can be used in the ultra-precision machines designed for diamond turning. The control system includes the contact and contactless sensors, a low-coherence interferometer, a signal converter and software that allows calculating any shape deviations of the spherical and aspherical surfaces and adjusting the CNC code to eliminate systematic shape deviations. The examples of using a contact sensor to increase the P-V shape accuracy of aspherical germanium lenses with a diameter of 90 mm from 1.4 μm to 100 nm after the systematic shape deviation compensation are provided. The possible application of a contactless sensor included in the measuring system to adjust an ultra-precision machine, as well as to control flat and cylindrical surfaces are described.
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About the authors
Evgeny M. Zakharevich
Aspherica Scientific and Production Association LLC
Author for correspondence.
Email: zaharev@gmail.com
ORCID iD: 0000-0001-6997-3335
Chief Technologist
Russian Federation, MoscowVasily V. Lapshin
Aspherica Scientific and Production Association LLC
Email: lapshin_v@aspherica.ru
ORCID iD: 0000-0002-6971-8534
Senior Engineer-Researcher
Russian Federation, MoscowMaria A. Shavva
Aspherica Scientific and Production Association LLC
Email: shavva_m@aspherica.ru
ORCID iD: 0000-0002-4676-2567
Cand. of Sciences (Tech.), Chief Designer
Russian Federation, MoscowRoman A. Poshekhonov
Bauman Moscow State Technical University
Email: poshekhonov_r@aspherica.ru
ORCID iD: 0000-0003-2188-7854
Cand. of Sciences (Tech.), Associate Professor
Russian Federation, MoscowPyotr V. Volkov
Technological Electronic Optical Systems LLC
Email: p.volkov.79@yandex.ru
ORCID iD: 0000-0003-2479-0716
Cand. of Sciences (Phys. and Math.), Director
Russian Federation, Nizhny NovgorodReferences
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