Infrared and Laser Engineering, Volume. 50, Issue 7, 20200468(2021)

Design of underwater large field of view zoom optical system

Rui Qu1,2, Jianfeng Yang1, Jianzhong Cao1, and Bo Liu1
Author Affiliations
  • 1Xi’an Institute of Optical and Precision Mechanics, Chinese Academy of Sciences, Xi’an 710119, China
  • 2Univisity of Chinese Academy of Sciences, Beijing 100049, China
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    Figures & Tables(9)
    Schematics of two typical kind of underwater optical window structures
    Schematic of the change of relative distortion vs angle of incidence
    Schematic diagram of the change of vs angle of incidence随入射角变化分布示意图
    Schematics of the design model of zoom lens with three linkage group
    Distortion performance of the underwater large FOV zoom optical system
    Design result of the underwater large FOV zoom optical system and corresponding MTF performance
    Schematic of the cam curve of the underwater zoom optical system
    Image performance of the zoom optical system underwater
    • Table 1. Design requirements

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      Table 1. Design requirements

      ParameterValue
      Work wavelength/μm0.48-0.64
      F-number 2.8-32
      Diagonal field of view (DFOV)/(°)62-5.9
      Underwater distortion≤5%
      Focus range0.5 m-inf
      Working depth/m11 000
      Size (Without window)/mm2φ60(D)×220(L
      Weight/kg≤1.5
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    Rui Qu, Jianfeng Yang, Jianzhong Cao, Bo Liu. Design of underwater large field of view zoom optical system[J]. Infrared and Laser Engineering, 2021, 50(7): 20200468

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    Paper Information

    Category: Optical design

    Received: Nov. 16, 2020

    Accepted: --

    Published Online: Aug. 23, 2021

    The Author Email:

    DOI:10.3788/IRLA20200468

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