Volume 7 Issue 4
Aug.  2014
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BAI Yu-zhuo, MU Rui, MA Lin, JIA Yu-chao, PU Qun-yan, XUE Jing-wei. Design of infrared optical system with super-long focal length and dual field-of-view[J]. Chinese Optics, 2014, 7(4): 631-637. doi: 10.3788/CO.20140704.0631
Citation: BAI Yu-zhuo, MU Rui, MA Lin, JIA Yu-chao, PU Qun-yan, XUE Jing-wei. Design of infrared optical system with super-long focal length and dual field-of-view[J]. Chinese Optics, 2014, 7(4): 631-637. doi: 10.3788/CO.20140704.0631

Design of infrared optical system with super-long focal length and dual field-of-view

doi: 10.3788/CO.20140704.0631
  • Received Date: 08 Mar 2014
  • Rev Recd Date: 13 May 2014
  • Publish Date: 25 Jul 2014
  • A mid-wavelength infrared optical system with super-long focal length and dual field-of-view is designed in this paper. Based on the re-image configuration, this system can realize the zoom by axial motion of a lens along the optical axis. The design results show that this system realizes the zoom with a super-long focal length of 600-1 500 mm, and the MTF of the central view is more than 0.5 at the characteristic frequency of 20 lp/mm of detector, which shows its optical performance approximates to the diffraction limit. This system can meet the requirement of military investigation for seeking and aiming at target in a long distance.

     

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