Infrared and Laser Engineering, Volume. 54, Issue 6, 20240588(2025)

Design of Y-shaped fiber optic hybrid diffractive confocal ranging system

He HUANG, Binzhi ZHANG*, Yinghuai ZHANG, Xin LI, and Zhong ZHENG
Author Affiliations
  • Jihua Laboratory, Foshan 528000, China
  • show less
    Figures & Tables(23)
    Spectral confocal structure based on spectroscope and small hole
    Spectral confocal structure based on Y-shaped fiber
    Different types of fiber optic interfaces
    Structure of fiber optic spectrometer
    Dispersion objective lens
    Layout of collimation system
    Alignment system point list diagram
    Layout of dispersion objective focusing system
    Point array diagram of dispersion objective focusing system
    Color focal shift curve of dispersive objective lens
    (a) Layout of spectrometer focusing system; (b) Column diagram of the spectrometer focusing system points
    (a) Dispersion objective lens layout diagram; (b) Dispersion objective lens point array diagram
    Dispersion objective lens focal shift curve
    (a) Spectrometer layout diagram; (b) Spectrometer point chart; (c) Wavelength and focus position curve of spectrometer
    Dual band light trace of spectrometer
    (a) Appearance diagram of dispersion objective lens structure; (b) Sectional diagram of dispersive objective lens structure
    (a) Appearance diagram of the spectrometer structure; (b) Sectional diagram of spectrometer structure
    • Table 1. Optical design index parameters

      View table
      View in Article

      Table 1. Optical design index parameters

      ParameterValue
      Fiber numerical aperture0.22
      Wavelength range/nm400-800
      Objective numerical aperture>0.25
      Working distance of objective lens/mm10
      Measurement range of objective lens/mm>2
      Detector usage length/mm>20
    • Table 2. Surface parameters of collimation system

      View table
      View in Article

      Table 2. Surface parameters of collimation system

      SurfaceRadiusThicknessMaterial
      Object-24.423-
      183.162H-ZLAF75A
      219.855.1H-FK61
      3−17.6518.459-
      4−29.362.8ZF52
      5−21.310.27-
      6−190.962H-LAF54
      728.041-
      827.725H-FK61
      9−43.24--
    • Table 3. Surface parameters of dispersion objective focusing system

      View table
      View in Article

      Table 3. Surface parameters of dispersion objective focusing system

      SurfaceRadiusThicknessMaterial
      1−33.792H-FK61
      2Infinity3.5H-LAF50B
      3−55.790.3-
      455.793.5H-LAF50B
      5Infinity4.308-
      623.036H-ZLAF52
      734.7612.899-
      8Infinity3H-K9L
      9Infinity--
    • Table 4. Surface parameters of spectrometer focusing system

      View table
      View in Article

      Table 4. Surface parameters of spectrometer focusing system

      SurfaceRadiusThicknessMaterial
      138.986H-K6
      2−36.43.5H-ZK7
      3−258.6815-
      424.266H-ZK21
      5Infinity3H-F4
      616.5224.5-
    • Table 5. Dispersion objective lens tolerance parameters

      View table
      View in Article

      Table 5. Dispersion objective lens tolerance parameters

      SurfaceSurface toleranceComponent tolerance
      Curvature radius/ApertureThickness/mmPartial/mmIncline/(°)Partial/mm
      12±0.10.050.030.1
      22±0.10.050.03
      32±0.10.050.03
      42±0.10.050.050.1
      52±0.10.050.05
      62±0.10.050.030.05
      72±0.050.050.03
      82±0.050.050.030.05
      92±0.10.050.03
      102±0.10.050.030.1
      112±0.10.050.03
      122±0.10.050.03
      132±0.10.050.050.1
      142±0.10.050.05
      152±0.10.050.05
      162±0.10.050.05
      172±0.10.050.050.5
      1820.050.050.5
    • Table 6. Tolerance parameters of spectrometer

      View table
      View in Article

      Table 6. Tolerance parameters of spectrometer

      SurfaceSurface toleranceComponent tolerance
      Curvature radius/ApertureThickness/mmPartial/mmIncline/(°)Partial/mm
      112±0.10.050.03
      122±0.10.050.03
      132±0.10.050.050.1
      142±0.10.050.05
      152±0.10.050.05
      162±0.10.050.050.1
      1820.050.05
    Tools

    Get Citation

    Copy Citation Text

    He HUANG, Binzhi ZHANG, Yinghuai ZHANG, Xin LI, Zhong ZHENG. Design of Y-shaped fiber optic hybrid diffractive confocal ranging system[J]. Infrared and Laser Engineering, 2025, 54(6): 20240588

    Download Citation

    EndNote(RIS)BibTexPlain Text
    Save article for my favorites
    Paper Information

    Category: Optical design and fabrication

    Received: Dec. 17, 2024

    Accepted: --

    Published Online: Jul. 1, 2025

    The Author Email: Binzhi ZHANG (binzh123@163.com)

    DOI:10.3788/IRLA20240588

    Topics