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ISSN: 1023-5086

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ISSN: 1023-5086

Scientific and technical

Opticheskii Zhurnal

A full-text English translation of the journal is published by Optica Publishing Group under the title “Journal of Optical Technology”

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DOI: 10.17586/1023-5086-2023-90-01-26-36

УДК: 681.7.028, 681.7.067.283

The technology of developing a high aperture four-mirror lens with aspherical mirrors

Venzel, V.I., Dmitriev, I.Y., Muravуeva, E.S., Semenov, A.A.

Full text on elibrary.ru

Publication in Journal of Optical Technology

For Russian citation (Opticheskii Zhurnal):

Вензель В.И., Дмитриев И.Ю., Муравьева Е.С., Семёнов А.А. Технология создания светосильного четырехзеркального объектива с асферическими зеркалами // Оптический журнал. 2023. Т. 90. № 1. С. 26–36. http://doi.org/10.17586/1023-5086-2023-90-01-26-36

 

Venzel’ V.I., Dmitriev I.Yu., Muravyeva E.S., Semenov A.A. The technology of developing a high aperture four-mirror lens with aspherical mirrors [in Russian] // Opticheskii Zhurnal. 2023. V. 90. № 1. P. 26–36. http://doi.org/10.17586/1023-5086-2023-90-01-26-36

For citation (Journal of Optical Technology):

V. I. Venzel’, I. Yu. Dmitriev, E. S. Murav’eva, and A. A. Semenov, "Technology for developing a high-aperture four-mirror lens with aspherical mirrors," Journal of Optical Technology. 90(1), 14-19 (2023). https://doi.org/10.1364/JOT.90.000014

Abstract:

Subject of study. Techniques for optimizing the design, assembly and alignment of a high aperture wide-angle four-mirror axisymmetric lens. Aim of study. Development of a high-tech lens design with due regard for relation between the calculated tolerances for the decentering of mirrors and the technological capabilities of their manufacture, assembly and alignment. Technique. It includes the selection of an image quality criterion and the calculation of its permissible drop, the distribution of manufacturing errors between decentering errors and surface shape errors, the calculation of tolerances based on the obtained ratios. Moreover, the rationale for choosing a lens design with a minimum number of adjusting units through optimizing the calculated permissible decentering with due regard to the technological tolerances for positioning optical elements is given, the possibilities of the scheme to compensate for residual aberrations caused by the manufacture and positioning of mirrors are studied. At the final stage, the method of the evaluation function reduction for the final adjustment of the optical elements in the lens is used. Main results. Design and technological solutions that allow the requirements for tolerances for deviation of the surface shape of mirrors from their calculated profile and decentering of optical elements to be optimized with allowance for the technological capabilities of production are considered. Criteria are formulated for the distribution of tolerances for permissible deviations of optical system parameters affecting image quality. Using the proposed techniques, the possibility of creating a high-tech drop-in structure of a high aperture four-mirror lens, including a body of two blocks and containing a single linear adjusting unit of the second mirror to compensate for residual aberrations, is shown. Practical relevance. The proposed technical solutions have been tested when creating a high-resolution lens consisting of four aspherical mirrors. The obtained positive results of manufacturing a lens with high characteristics of aperture and resolution allow the proposed solutions to be used for multi-mirror axisymmetric lenses design.

Keywords:

mirror lens, design tolerance, technological decentering, assembly, alignment, aberration compensation

OCIS codes: 220.0220, 080.1005, 080.4228

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