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Laser & Optoelectronics Progress, Volume. 62, Issue 15, 1522005(2025)

Installation Method for Three-Mirror Optical System Based on the Angle Between Optical Axis and Mounting Surface

Yongxue Sun*, Shengda Zhao, Ting Jiang, and Jibao Hu
Author Affiliations
  • Test Center, Shanghai Institute of Spacecraft Equipment, Shanghai 200240, China
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    AbstractGet PDF(in Chinese)
    Figures&Tables (15)
    Equations (1)
    References (15)
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    Paper Information
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    Figures & Tables(15)
    Angle measurement diagram

    Fig. 1. Angle measurement diagram

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    Optical system diagram

    Fig. 2. Optical system diagram

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    Optical system diagram

    Fig. 3. Optical system diagram

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    Zero-field-of-view datum establishment diagram

    Fig. 4. Zero-field-of-view datum establishment diagram

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    Secondary mirror and third mirror coaxial precision installation diagram

    Fig. 5. Secondary mirror and third mirror coaxial precision installation diagram

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    Interference pattern of third mirror

    Fig. 6. Interference pattern of third mirror

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    Interference pattern of secondary mirror

    Fig. 7. Interference pattern of secondary mirror

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    Schematic of system installation and adjustment

    Fig. 8. Schematic of system installation and adjustment

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    Physical picture of system installation and adjustment

    Fig. 9. Physical picture of system installation and adjustment

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    Long-distance building imaging

    Fig. 10. Long-distance building imaging

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    • Table 1. Mirror parameters

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      Table 1. Mirror parameters

      MirrorDiameter /mmAperture Y off-axis /mmRadius /mmConic4th order term
      PM204×165-103.5-1382.5-2.786-5.146×10-11
      SM700-500.840.889
      TM175×140105.5-562.000.4462.244×10-11

    • Table 2. Tolerance distribution

      View table

      Table 2. Tolerance distribution

      MirrorRadius /mmConicRMS /λDecenter /mmTilt /（″）Spacing /mm
      PM±0.5±0.0051/25±0.03±32±0.05
      SM±0.5±0.0051/25±0.05±45±0.05
      TM±0.5±0.0051/25±0.05±45

    • Table 3. Primary mirror sensitivity matrix

      View table

      Table 3. Primary mirror sensitivity matrix

      FieldZDx=0.03Dy=0.03Dz=0.03Tx=32″Ty=32″
      Field 0Z50.00017-0.070350.01236-1.299170.00015
      Z60.00764000-1.14193
      Z7-0.018930000.14437
      Z80-0.017380.00648-0.013940
      Z90-0.004470.0009300
      Field 1Z50.00028-0.009050.01943-1.466330.00022
      Z60.09272000-1.15361
      Z7-0.027470000.15824
      Z80-0.026650.00855-0.015320
      Z90-0.005210.001320.000020

    • Table 4. Secondary mirror sensitivity matrix

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      Table 4. Secondary mirror sensitivity matrix

      FieldZDx =0.05Dy =0.05Dz=0.05Tx=45″Ty=45″
      Field 0Z50-0.12361-0.02836-1.15057-0.00011
      Z60.12537000-1.1493
      Z7-0.015440000.04456
      Z80-0.01436-0.01377-0.043210
      Z900-0.00053-0.000340
      Field 1Z50-0.12973-0.03216-1.15978-0.00043
      Z60.12968000-1.15287
      Z7-0.016120000.04588
      Z80-0.01533-0.01421-0.048450
      Z900-0.00077-0.000410

    • Table 5. Third mirror sensitivity matrix

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      Table 5. Third mirror sensitivity matrix

      FieldZDx=0.05Dy =0.05Dz=0.05Tx=45″Ty=45″
      Field 0Z50.00004-0.093820.01236-1.088730.00006
      Z60.01036000-1.07243
      Z7-0.017220000.04521
      Z80-0.013260.00461-0.010340
      Z9000.0002600
      Field 1Z50.00006-0.096830.01546-1.20440.00015
      Z60.01356000-1.1274
      Z7-0.018060000.06436
      Z80-0.015620.00552-0.012870
      Z9000.0004700
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    Yongxue Sun, Shengda Zhao, Ting Jiang, Jibao Hu. Installation Method for Three-Mirror Optical System Based on the Angle Between Optical Axis and Mounting Surface[J]. Laser & Optoelectronics Progress, 2025, 62(15): 1522005

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    Paper Information

    Category: Optical Design and Fabrication

    Received: Dec. 19, 2024

    Accepted: Feb. 14, 2025

    Published Online: Aug. 11, 2025

    The Author Email: Yongxue Sun (983042171@qq.com)

    DOI:10.3788/LOP242449

    CSTR:32186.14.LOP242449

    Topics

    laser devices and laser physics
    Lasers and Laser Optics
    Laser physics
    laser manufacturing
    Instrumentation, Measurement and Metrology