Compact periscope-type objective based on wedge-shaped prisms with free-form surfaces

Greisukh, G.I., Ezhov, E.G., Kazin, S.V., Levin, I.A.

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For Russian citation (Opticheskii Zhurnal):

Грейсух Г.И., Ежов Е.Г., Левин И.А., Казин С.В. Компактный объектив перископического типа на основе клиновидных призм с поверхностями свободной формы // Оптический журнал. 2021. Т. 88. № 10. С. 3–10. http://doi.org/10.17586/1023-5086-2021-88-10-03-10

G. I. Greisukh, E. G. Ezhov, I. A. Levin, and S. V. Kazin Compact periscope-type objective based on wedge-shaped prisms with free-form surfaces [in Russian] // Opticheskii Zhurnal. 2021. V. 88. № 10. P. 3–10. http://doi.org/10.17586/1023-5086-2021-88-10-03-10

For citation (Journal of Optical Technology):

G. I. Greisukh, E. G. Ezhov, I. A. Levin, and S. V. Kazin, "Compact periscope-type objective based on wedge-shaped prisms with free-form surfaces," Journal of Optical Technology. 88(10), 553-557 (2021). https://doi.org/10.1364/JOT.88.000553

Abstract:

Peculiarities of the optical layout configuration of a periscope-type objective based on wedge-shaped prisms with free-form surfaces are considered. Guidelines on the correction of aberrations of the initial optical system and control of ray incidence angles on the prism surfaces in the areas where ray reflection and refraction zones overlap are formulated. The effectiveness of these guidelines is demonstrated by calculation of a compact periscope-type objective operating in a spectral interval spanning visible and near-infrared ranges. Elements of the optical layout of the objective are fabricated using advanced commercially available types of plastic.

Keywords:

periscope-type objective, wedge-shaped prism, free-form surface, correction of aberrations

Acknowledgements:

The research was supported by the Russian Science Foundation, grant No. 20-19-00081.

OCIS codes: 110.0110, 220.0220

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