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Proceedings Paper

Compact middle infrared zoom lens design
Author(s): Xuan-zhi Zhang; Ming-yin Jiao; Yadong Luan; Wei-jun Chang; Ting Sun
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Paper Abstract

A compact mid-wavelength infrared zoom camera with a zoom range of 15:1 and active athermalization has been developed. The moving groups for a wide zoom range are only two lens groups and moving machanisms of zoom are very simple, which allows easy access of opto-mechanical and electromechanical design. The final design adopts the configuration of reflective mirror fold, comprising of two mirrors and eleven refractive lenses made of two infrared materials such as germanium or silicon. The movement of the lens groups and the focal length of the system are smooth and continuous. The zoom lens has the advantages of simple structure, high image quality, simple moving lens groups, short zoom path and smooth zoom locus.

Paper Details

Date Published: 8 September 2011
PDF: 7 pages
Proc. SPIE 8193, International Symposium on Photoelectronic Detection and Imaging 2011: Advances in Infrared Imaging and Applications, 81932T (8 September 2011); doi: 10.1117/12.900556
Show Author Affiliations
Xuan-zhi Zhang, Xi'an Institute of Applied Optics (China)
Ming-yin Jiao, Xi'an Institute of Applied Optics (China)
Yadong Luan, Xi'an Institute of Applied Optics (China)
Wei-jun Chang, Xi'an Institute of Applied Optics (China)
Ting Sun, Xi'an Institute of Applied Optics (China)


Published in SPIE Proceedings Vol. 8193:
International Symposium on Photoelectronic Detection and Imaging 2011: Advances in Infrared Imaging and Applications
Jeffery J. Puschell; Junhao Chu; Haimei Gong; Jin Lu, Editor(s)

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