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DOI: 10.17586/1023-5086-2023-90-09-03-13
УДК: 535.317
Thermally non-configurable thermal-imaging optical systems
Full text on elibrary.ru
Publication in Journal of Optical Technology
Балаценко О.Н., Архипова Л.Н. Термонерасстраиваемые тепловизионные оптические системы // Оптический журнал. 2023. Т. 90. № 9. С. 3–13. http://doi.org/10.17586/1023-5086-2023-90-09-03-13
Balatsenko O.N., Arkhipova L.N. Thermally non-configurable thermal-imaging optical systems [in Russian] // Opticheskii Zhurnal. 2023. V. 90. № 9. P. 3–13. http://doi.org/10.17586/1023-5086-2023-90-09-03-13
Research subject. trends and circuit designs of thermally non-configurable thermal-imaging optical systems developed and manufactured over the recent years in the Vavilov State Optical Institute. Purpose. Review of current trends in the implemented domestic circuit designs for optical systems operating in middle and far infrared band based on spherical components and formulation of current research directions. Method. The developed circuit designs were based on using the algebraic method of designing optical systems by means of the passive athermalization theory. This method is based on special selection of materials for optical and housing parts of the device and calculation of beam paths in varying temperatures followed by calculation of image quality criteria. As a basic point in selecting possible materials for circuit elements, linear expansion coefficients, refraction index temperature variance coefficients, their interrelation with structural parameters are adopted with further calculation of the frequency-contrast response as the criterion of image quality most sensitive to varying conditions. Primary results. Primary trends are given for development of circuit designs as a summary table of available options (according to optical characteristics and features of optical circuits) of the implemented optical systems in the Vavilov State Optical Institute over the last several years. Practical significance. In terms of developing optical systems for devices operating in middle and far IR band, the technical solutions presented in the paper can act as an equivalent or a basic circuit for creating modernized optical systems both in terms of optical performance, elements and materials, and design solutions used in them.
thermal-imaging optical systems, thermally non-configurable optical systems, infrared band, multi-spectral systems, kinoform optical elements, aspheric surfaces
Acknowledgements:the presented optical systems are developed and manufactured in the Vavilov State Optical Institute
OCIS codes: 080.3620, 080.4035, 220.3620, 220.1250
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