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Optical Engineering • Open Access

Mechanically compensated type for midwave infrared zoom system with a large zoom ratio
Author(s): Hao Zhou; Liu Ying; Sun Qiang; Li Chun; Xiaolong Zhang; Huang Jianbo

Paper Abstract

In some circumstances, there is a need for a midwave infrared (MWIR) zoom system with a large zoom ratio. Using traditional four-component mechanically compensated types of MWIR zoom systems cannot achieve a large zoom ratio. To meet this demand, we describe a six-component mechanically compensated type. The thin-lens theory of this type is developed and equations are presented. Using the six-component mechanically compensated type, a MWIR continuous zoom system with a zoom ratio of 45 is designed, and it has high image quality over the entire zoom range.

Paper Details

Date Published: 7 January 2013
PDF: 7 pages
Opt. Eng. 52(1) 013002 doi: 10.1117/1.OE.52.1.013002
Published in: Optical Engineering Volume 52, Issue 1
Show Author Affiliations
Hao Zhou, Changchun Institute of Optics, Fine Mechanics and Physics (China)
Liu Ying, Changchun Institute of Optics, Fine Mechanics and Physics (China)
Sun Qiang, Changchun Institute of Optics, Fine Mechanics and Physics (China)
Li Chun, Changchun Institute of Optics, Fine Mechanics and Physics (China)
Xiaolong Zhang, Changchun Institute of Optics, Fine Mechanics and Physics (China)
Huang Jianbo, Changchun Institute of Optics, Fine Mechanics and Physics (China)


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