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Proceedings Paper

A new method of dual FOV optical system design
Author(s): Liang Zhang
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Paper Abstract

With the development of scientific technologies, infrared imaging technology has been applied in the fields of industry, medical treatment, and national defense and so on. Infrared detection has the advantages of looking through the smoke, fog, haze, snow, and also could avoid the affection of battlefield flash. Hence, it could achieve the long distance and all-weather scout, especially in nighttime and badness weather conditions.All kinds of single-FOV, dual-FOV, multi-FOV and continuous zoom optical systems have been applied more and more abroad with the research and application of infrared imaging technologies. Therefore, the research of all sorts of dual FOV optical systems would be more important. The system belongs to simple zoom optical systems by having two fields of view. The zoom methods comprise of single zoom, rotary zoom, radial zoom, axial zoom and so on. Basing on the analysis of zoom methods, a new method of zoom optical system has been developed, which realized the dual FOV optical system by sharing secondary imaging lenses. This design method could make the results approaching to diffraction limit, and improve the precision of optical axial. It also has decreased the moving parts and reduced the difficulty of assembly of system.

Paper Details

Date Published: 4 August 2009
PDF: 7 pages
Proc. SPIE 7383, International Symposium on Photoelectronic Detection and Imaging 2009: Advances in Infrared Imaging and Applications, 738309 (4 August 2009); doi: 10.1117/12.839645
Show Author Affiliations
Liang Zhang, Electro-optical Equipment Research Institute (China)

Published in SPIE Proceedings Vol. 7383:
International Symposium on Photoelectronic Detection and Imaging 2009: Advances in Infrared Imaging and Applications
Jeffery Puschell; Hai-mei Gong; Yi Cai; Jin Lu; Jin-dong Fei, Editor(s)

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