Infrared and Laser Engineering, Volume. 51, Issue 11, 20220109(2022)

Wavefront aberration sensitivity and integrated analysis method for spaceborne camera

Zhipeng Xue, Shanshan Cong, Meijiao Sun, Lei Zhang*, Jinquan Liu, and Xin Yu
Author Affiliations
  • Chang Guang Satellite Technology Co., Ltd., Changchun 130102, China
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    Figures & Tables(11)
    Flow diagram of opto-mechanics integrate simulation
    3D model of space camera
    Relationship between displacement and wavefront aberration of primary mirror and secondary mirror
    Relationship between tilt and wavefront aberration of primary mirror and secondary mirror
    Finite element model (a) and displacement contour (b)
    Optical software analysis results
    Wavefront aberration measurement setup
    Wavefront aberration measurement results of central field of view
    • Table 1. Fitting parameters

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      Table 1. Fitting parameters

      MisalignmentSensitive λ/μm; λ/(″)) Intercept/λ
      PM-Dx2.67E-035.16E-06
      PM-Dy2.67E-035.16E-06
      PM-Dz1.33E-025.29E-02
      PM-Tx6.35E-03−3.90E-06
      PM-Ty6.35E-03−3.90E-06
      SM-Dx2.84E-03−1.33E-05
      SM-Dy2.84E-03−1.33E-05
      SM-Dz9.55E-042.67E-03
      SM-Tx8.75E-04−1.85E-04
      SM-Ty8.75E-04−1.85E-04
    • Table 2. Rigid body displacements of primary mirror and secondary mirror

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      Table 2. Rigid body displacements of primary mirror and secondary mirror

      SubassemblyDirectionDxDyDzTxTyTz
      PMMisalignment/mm; (″)−2.324E-031.233E-063.684E-04−1.63E-064.70E-042.075E-08
      Wavefront aberration/λ6.20E-033.29E-064.90E-033.73E-051.07E-020
      SMMisalignment/mm; (″)−1.903E-02−1.415E-047.777E-033.59E-06−6.83E-048.248E-07
      Wavefront aberration/λ5.40E-024.01E-04−7.38E-031.13E-05−2.15E-030
    • Table 3. Wavefront aberration measurement results

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      Table 3. Wavefront aberration measurement results

      DirectionPositive/λNegative/λError
      Central FOV0.05310.0518−2.45%
      Right FOV0.07480.08148.82%
      Left FOV0.06830.06941.61%
      UP FOV0.065430.0639−2.34%
      Down FOV0.05390.05654.82%
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    Zhipeng Xue, Shanshan Cong, Meijiao Sun, Lei Zhang, Jinquan Liu, Xin Yu. Wavefront aberration sensitivity and integrated analysis method for spaceborne camera[J]. Infrared and Laser Engineering, 2022, 51(11): 20220109

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    Paper Information

    Category: Optical design

    Received: Feb. 17, 2022

    Accepted: --

    Published Online: Feb. 9, 2023

    The Author Email: Lei Zhang (18686344285@163.com)

    DOI:10.3788/IRLA20220109

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