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Varifocal objectives for thermal imaging surveillance devices

S. D. Kozlov, A. R. Nasyrov, and N. G. Nigmatullina

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Abstract

Designs of varifocal objectives with different zoom ratios for operation in spectral ranges of 3–5 and 8–12 μm are considered. The optical layouts, appearance, and design specifications of the objectives are presented.

© 2017 Optical Society of America

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