Acta Optica Sinica, Volume. 44, Issue 18, 1822003(2024)

MEMS-Based Panoramic LiDAR System with Separated Transmitting and Receiving Modules

Run Wang1,2 and Zhouping Su1,2、*
Author Affiliations
  • 1Jiangsu Provincial Research Center of Light Industrial Opto-electronic Engineering and Technology, School of Science, Jiangnan University, Wuxi 214122, Jiangsu , China
  • 2School of Science, Jiangnan University, Wuxi 214122, Jiangsu , China
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    Figures & Tables(11)
    Conceptual diagram of MEMS LiDAR profile with separated transmitting and receiving
    Structure diagrams of scanning optical module. (a) yoz plane structure; (b) xoy plane structure
    Structure diagrams of multi-field scanning module. (a) yoz plane multi-field structure; (b) xoy plane multi-field structure
    Profile diagrams of multi-field luminous intensity distribution. (a) Divergence angle of each vertical field of view; (b) divergence angle of each horizontal field of view
    Structure diagram of yoz plane multi-field simulation
    Irradiance distribution diagrams. (a) Irradiance distribution diagrams of the target surface at different locations; (b) irradiance distribution diagram at 200 m
    Comparison diagrams of the model divergence angle before and after adding annular lens to the scanning optical module structure. (a) Before adding annular lens; (b) after adding annular lens
    Structure diagrams of receiving optical module. (a) yoz plane structure diagram; (b) xoz plane structure diagram
    Received spot diagram
    • Table 1. Lens parameters for panoramic scanning MEMS LiDAR system

      View table

      Table 1. Lens parameters for panoramic scanning MEMS LiDAR system

      TypeParameter
      MaterialPC
      Critical angle of total reflection /(°)38.942
      Angle between the total reflector and the horizontal direction /(°)60
      Radius of curvature of spherical surface S1 /mm19.93
      Radius of curvature of spherical surface S3 /mm35.88
      Tilt angle of the MEMS mirror /(°)14
    • Table 2. Parameters of LiDAR system with separated transmitting and receiving

      View table

      Table 2. Parameters of LiDAR system with separated transmitting and receiving

      ParameterValue
      P0 /W45
      D /mm21
      L /m200
      ηsys 10.932
      ηsys 20.980
      ηatm0.992
      ρ0.4
      θ /(°)0
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    Run Wang, Zhouping Su. MEMS-Based Panoramic LiDAR System with Separated Transmitting and Receiving Modules[J]. Acta Optica Sinica, 2024, 44(18): 1822003

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    Paper Information

    Category: Optical Design and Fabrication

    Received: Nov. 27, 2023

    Accepted: Mar. 18, 2024

    Published Online: Sep. 9, 2024

    The Author Email: Su Zhouping (szp@jiangnan.edu.cn)

    DOI:10.3788/AOS231837

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