Forming thermal imaging system field of view with afocal lens cap

Igor G. Chyzh; Valentin G. Kolobrodov; Volodymyr I. Mykytenko; Grygorij S. Tymchik; Paweł Komada; Ainur Kozbakova

doi:10.1117/12.2536830

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6 November 2019 Forming thermal imaging system field of view with afocal lens cap

Igor G. Chyzh, Valentin G. Kolobrodov, Volodymyr I. Mykytenko, Grygorij S. Tymchik, Paweł Komada, Ainur Kozbakova

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Proceedings Volume 11176, Photonics Applications in Astronomy, Communications, Industry, and High-Energy Physics Experiments 2019; 111760T (2019) https://doi.org/10.1117/12.2536830
Event: Photonics Applications in Astronomy, Communications, Industry, and High-Energy Physics Experiments 2019, 2019, Wilga, Poland

Abstract

Method of infrared lenses field of view step variation is discussed in this paper. Simple afocal lens caps based on the classic Kepler or Galilee telescopic schemes are considered. The afocal cap have to provide acceptable vignetting of the extreme rays and moderate transverse dimensions. Mersenne two-mirror system of Galilean-type was selected as the most suitable lens cap. Equations were obtained to calculate dimensional parameters of the cap in respect that vignetting coefficient should be minimal.

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Igor G. Chyzh, Valentin G. Kolobrodov, Volodymyr I. Mykytenko, Grygorij S. Tymchik, Paweł Komada, and Ainur Kozbakova "Forming thermal imaging system field of view with afocal lens cap", Proc. SPIE 11176, Photonics Applications in Astronomy, Communications, Industry, and High-Energy Physics Experiments 2019, 111760T (6 November 2019); https://doi.org/10.1117/12.2536830

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