Journal of Applied Optics, Volume. 42, Issue 5, 782(2021)

Optical system of star sensor with miniaturization and wide spectral band

Yanxiong WU and Liping WANG*
Author Affiliations
  • Foshan University of Science and Technology, Foshan 528000, China
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    Figures & Tables(14)
    Spectrum response curve of GSENSE2020BSI detector
    Schematic diagram of optical system
    Optical path diagram of optical system
    Design results of MTF under different temperatures
    Astigmatism and distortion design curves
    Lateral chromatic aberration design curves
    Encircled energy curves
    Picture of products
    Measurement results of MTF under different field of view
    • Table 1. Field of view and threshold magnitude under requirement of all sky recognition

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      Table 1. Field of view and threshold magnitude under requirement of all sky recognition

      探测视场/(°)10×1015×1518.8×18.820×20
      探测阈值星等/(Mv)6.05.45.04.7
    • Table 2. Design indexes of optical system

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      Table 2. Design indexes of optical system

      参数指标要求
      焦距/mm40±0.5
      视场/(°)≥18.8×18.8
      相对孔径(F#2.8
      光谱范围/nm450 ~1 000
      能量集中度/%≥85(in 3 pixel×3 pixel)
      相对畸变/%≤0.05
      温度范围/℃−40~60
    • Table 3. Distribution results of focal power

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      Table 3. Distribution results of focal power

      透镜组序号归一化光焦度透镜序号归一化光焦度
      前组1.9透镜11.8
      透镜2−2.6
      透镜32.6
      中组−4.6透镜4−3.1
      透镜52.4
      透镜6−3.6
      后组2.4透镜71.1
      透镜81.3
    • Table 4. Results of optical system design

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      Table 4. Results of optical system design

      参数设计结果
      焦距/mm39.993 4
      视场/(°)18.8×18.8
      相对孔径F#2.8
      光谱范围/nm450~1 000
      能量集中度/%≥85(in 3 pixel×3 pixel)
      相对畸变/%≤0.001
      温度范围/℃−40~60
    • Table 5. Statistics of lateral chromatic aberration

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      Table 5. Statistics of lateral chromatic aberration

      FieldLateral color/μm
      Short wave-reference waveShort wave-long wave
      0.30.381.15
      0.50.791.65
      0.71.481.77
      0.852.301.38
      1.03.30.74
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    Yanxiong WU, Liping WANG. Optical system of star sensor with miniaturization and wide spectral band[J]. Journal of Applied Optics, 2021, 42(5): 782

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    Paper Information

    Category: OE SYSTEM AND ENGINEERING

    Received: Jan. 21, 2021

    Accepted: --

    Published Online: Sep. 23, 2021

    The Author Email: WANG Liping (home313@126.com)

    DOI:10.5768/JAO202142.0501004

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