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Proceedings Paper

Optical design of temperature self-adaptive dual-field infrared system
Author(s): Ming LI; Li-juan Hong; Min Jin; Teng-peng Zhang
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Paper Abstract

Based on the theory of athermalization, an optical system of temperature self-adaptive dual field of view was designed in this paper, appling in 3μm~5μm medium wave infrared camera system. This system achieved the design of optical passive athermalization by reasonable selection in terms of infrared optical materials and aspheric surface. Only five lenses were applied in this optical system, meanwhile, optical materials like germanium, silicon and ZnSe were all ordinary and cost-effective. The focal distance was 50mm/100mm, with total length of 125mm and pixel size of 17μm. The MTF of the two field of view were both greater than 0.5 at 30lp/mm in -45°C~+60°C, with its optical performance approximating the diffraction limit.

Paper Details

Date Published: 15 October 2015
PDF: 5 pages
Proc. SPIE 9676, AOPC 2015: Optical Design and Manufacturing Technologies, 967604 (15 October 2015); doi: 10.1117/12.2197344
Show Author Affiliations
Ming LI, Ministry of Public Security (China)
Li-juan Hong, Ministry of Public Security (China)
Min Jin, Ministry of Public Security (China)
Teng-peng Zhang, Ministry of Public Security (China)


Published in SPIE Proceedings Vol. 9676:
AOPC 2015: Optical Design and Manufacturing Technologies
Lin Li; Kevin P. Thompson; Ligong Zheng, Editor(s)

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