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Proceedings Paper

Research of aberration properties and passive athermalization of optical systems for infrared region
Author(s): Galina E. Romanova; Grzegorz Pyś
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Paper Abstract

Infrared optical systems are widely used for surveillance, military and many other purposes. Image quality of such systems should be stable over wide working temperature range from – 40 up to +60°C. Due to temperature dependence of properties of optical materials and mechanical parts it is a difficult task to achieve the required stability. Passive and active methods exist to compensate the most significant aberration – so called thermal defocus. Passive compensation ways are the most attractive because complicated mechanical parts or devices are not required. The work is aimed at developing and improving of the IR system design methods. The analysis of thermoaberrations starts with analysis of possibilities of chromatic and thermal defocus correction in two and three component systems. Based on these results the development and improvement of the design method which was proposed earlier was implemented. Examples of designed systems are given. Results of the work may be helpful for designers to find optimal material combination for further designing of thermostabilized systems working in IR region.

Paper Details

Date Published: 23 September 2015
PDF: 8 pages
Proc. SPIE 9626, Optical Systems Design 2015: Optical Design and Engineering VI, 96260H (23 September 2015); doi: 10.1117/12.2191119
Show Author Affiliations
Galina E. Romanova, ITMO Univ. (Russian Federation)
Grzegorz Pyś, Warsaw Univ. of Technology (Poland)

Published in SPIE Proceedings Vol. 9626:
Optical Systems Design 2015: Optical Design and Engineering VI
Laurent Mazuray; Rolf Wartmann; Andrew P. Wood, Editor(s)

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