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УДК: 681.7
Fast objective with discrete magnification variation for thermal viewers
Full text «Opticheskii Zhurnal»
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Publication in Journal of Optical Technology
Редькин С.Н. Светосильный объектив с дискретным изменением увеличения для тепловизоров // Оптический журнал. 2016. Т. 83. № 4. С. 44–46.
Redkin S.N. Fast objective with discrete magnification variation for thermal viewers [in Russian] // Opticheskii Zhurnal. 2016. V. 83. № 4. P. 44–46.
S. N. Red’kin, "Fast objective with discrete magnification variation for thermal viewers," Journal of Optical Technology. 83(4), 228-230 (2016). https://doi.org/10.1364/JOT.83.000228
The optical layout of an objective with relative aperture 1∶1 and two viewing fields, based on a six-lens arrangement that contains no aspheric lenses, is considered in this article. This is used in thermal viewers based on microbolometric photodetector arrays. The design parameters of the optical layout and the calculational characteristics of the quality of the optical image are presented.
objective, viewing field, relative aperture, modulation transfer function, turret mechanism
OCIS codes: 230.0230
References:1. S. V. Oleı˘nik, “Variable-focus lens objective for operation in the IR region,” Russian Patent No. 2,316,797 (2008).
2. S. N. Red’kin, S. N. Shusharin, M. N. Batavin, A. Ya. Terekhov, D. E. Savin, V. P. Ivanov, and V. A. Baloev, “Pancratic optical system with discrete variation of the viewing field,” Russian Federation Patent 149,577 (2015).