Infrared and Laser Engineering, Volume. 49, Issue 4, 0414002(2020)

A large aperture cryogenic lenses designed and verified for space-based infrared sensor

Mailing Xing, Yiliang Liu, Jingyang Pei, Bin Hu, and Tianyuan Yang
Author Affiliations
  • Beijing Institute of Space Mechanics & Electricity, Beijing 100094, China
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    Figures & Tables(12)
    Optical system layout
    Diagrams of optical system design results
    Lens holder with stress-free design
    Lenses mount connected to lenses barrel by stress-free design
    Mode analysis result of lenses assembly
    Lenses on vibration test
    Digital number and gray show of the pinhole image after vibration test
    Ensquared energy test of the lenses at 200 K
    Digital number and gray show of the pinhole image at 200 K
    • Table 1. Structure parameters of the optical system

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      Table 1. Structure parameters of the optical system

      Surf. No.Radius/mmSpace/mmMaterial
      1(Stop)717.121.7Si
      21118.51.7
      3268.523.0Si
      4329.559.7
      5269.620.0Ge
      6195.1160.9
      7237.616.5Ge
      8200.955.8
      9225.316.5Si
      10270.8136.6
      11279.213.9Ge
      12329.347.6
    • Table 2. Design result of the optical system

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      Table 2. Design result of the optical system

      ParameterValue
      Incident angle of chief ray/(°)0.5
      Ensquared energy0.85
      Relative illumination2%
      Distortion–0.08%
    • Table 3. Test result of lens temperature

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      Table 3. Test result of lens temperature

      Temperature/K
      +Y side of lens 1 199.86
      Y side of lens 1 199.78
      +Y side of lens 6 195.31
      Y side of lens 6 195.22
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    Mailing Xing, Yiliang Liu, Jingyang Pei, Bin Hu, Tianyuan Yang. A large aperture cryogenic lenses designed and verified for space-based infrared sensor[J]. Infrared and Laser Engineering, 2020, 49(4): 0414002

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    Paper Information

    Received: Dec. 13, 2019

    Accepted: --

    Published Online: May. 27, 2020

    The Author Email:

    DOI:10.3788/IRLA202049.0414002

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