• Acta Optica Sinica
  • Vol. 43, Issue 6, 0612008 (2023)
Haiwei Jiang1、2、3 and Xinhua Niu1、3、*
Author Affiliations
  • 1Key Laboratory of Infrared System Detection and Imaging Technology, Chinese Academy of Sciences, Shanghai 200083, China
  • 2University of Chinese Academy of Sciences, Beijing 100049, China
  • 3Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai 200083, China
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    DOI: 10.3788/AOS221433 Cite this Article Set citation alerts
    Haiwei Jiang, Xinhua Niu. Design of Integrated Cloud Detection Optical System from Visible to Terahertz Bands[J]. Acta Optica Sinica, 2023, 43(6): 0612008 Copy Citation Text show less
    Initial structure of coaxial three-mirror system
    Fig. 1. Initial structure of coaxial three-mirror system
    Design results of off-axis three-mirror system. (a) Optical layout of off-axis three-mirror system; (b) visible and infrared spot diagrams; (c) THz spot diagram
    Fig. 2. Design results of off-axis three-mirror system. (a) Optical layout of off-axis three-mirror system; (b) visible and infrared spot diagrams; (c) THz spot diagram
    Design results of VNIR. (a) Optical layout; (b) MTF curves; (c) spot diagram
    Fig. 3. Design results of VNIR. (a) Optical layout; (b) MTF curves; (c) spot diagram
    Design results of SWIR.(a) Optical layout of SWIR system; (b) MTF curves; (c) spot diagram
    Fig. 4. Design results of SWIR.(a) Optical layout of SWIR system; (b) MTF curves; (c) spot diagram
    Design results of TIR. (a) Optical layout of TIR system; (b) MTF curves; (c) spot diagram
    Fig. 5. Design results of TIR. (a) Optical layout of TIR system; (b) MTF curves; (c) spot diagram
    Overall diagram of integrated optical system
    Fig. 6. Overall diagram of integrated optical system
    BandCentral wavelength /μmResolution /mUtilization
    10.47075True color(blue)
    20.55075True color(green)
    30.65075True color(red),optical thickness
    40.86575Optical thickness
    51.600100Optical thickness,effective particle radius
    62.100100Effective particle radius
    78.000100Cloud phase
    811.000100Cloud phase,cloud top temperature,effective particle radius
    912.000100Cloud phase,cloud top temperature,effective particle radius
    10343.250(874 GHz)10000Ice water path
    Table 1. Channel set
    ParameterTHzVNIRSWIRTIR
    F number3222
    Wavelength /μm

    324.680-364.080

    [(874±50)GHz]

    0.470-0.8651.600-2.1008.000-12.000
    Input aperture /mm150426868
    IFOV(instantaneous field of view)/mrad22.000.170.220.22
    Table 2. Design parameters of system
    TolerancePMSMTM
    x/y decentered tolerance /mm0.100.050.05
    x/y tilt tolerance /(″)303030
    Radius tolerance /mm0.20.20.2
    Conical coefficient tolerance0.00100.00100.0005
    Surface tolerance(λ=632.8 nm)λ/25λ/25λ/25
    Table 3. Tolerance of telescope system
    TolerancePM/ SM/ TM
    x/y decentered tolerance /mm0.05
    x/y tilt tolerance /(″)30
    Radius tolerance /mm0.2
    Conical coefficient tolerance0.001
    Surface tolerance(λ=632.8 nm)λ/25
    Table 4. Tolerance of VNIR optical system
    ToleranceTIRSWIR
    x/y decentered tolerance /mm0.020.02
    x/y tilt tolerance /(″)3636
    Thickness /mm0.100.02
    Radius /fringe33
    Table 5. Tolerance of TIR and SWIR systems
    Probability /%Tolerance
    VNIRSWIRTIR
    900.7510.7260.390
    500.8600.8120.433
    100.9110.8600.454
    Table 6. Monte-Carlo tolerance analysis results
    Haiwei Jiang, Xinhua Niu. Design of Integrated Cloud Detection Optical System from Visible to Terahertz Bands[J]. Acta Optica Sinica, 2023, 43(6): 0612008
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