MWIR continuous zoom optical system with magnification of 45

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MWIR continuous zoom optical system with magnification of 45
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Affiliation:University of Chinese Academy of Sciences,Changchun Institute of Optics,Fine Mechanics and Physics,Chinese Academy of Sciences,Changchun Institute of Optics,Fine Mechanics and Physics,Chinese Academy of Sciences,Changchun Institute of Optics,Fine Mechanics and Physics,Chinese Academy of Sciences,Changchun Institute of Optics,Fine Mechanics and Physics,Chinese Academy of Sciences,Changchun Institute of Optics,Fine Mechanics and Physics,Chinese Academy of Sciences
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Abstract:

The MWIR continuous zoom optical system has many advantages. A method for designing the system with large zoom range was introduced. Then, a system with 8 lenses was designed. The system works in the wavelength range of 3.7~4.8μm with 10~450mm continuous zoom, and the MTF value in Nyquist limit (16lp/mm) is more than 0.3 over the full range. The F/number of the system is 4. It can satisfy 100% cold shield efficiency.

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ZHOU Hao, LIU Ying, SUN Qiang, LI Chun, ZHANG Xiao-Long, HUANG Jian-Bo. MWIR continuous zoom optical system with magnification of 45[J]. Journal of Infrared and Millimeter Waves,2014,33(1):68~71

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Received:October 20,2012
Revised:December 14,2012
Adopted:December 17,2012
Online: April 03,2014
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