Chinese Journal of Liquid Crystals and Displays, Volume. 40, Issue 4, 555(2025)

Optimization of actuator for voice coil deformation mirror with large phase stroke

Jiuba GE1,2, Mingxing LI3, Shasha XU1,2, Chen WANG1,2, Ying ZHOU1,2, Lin YU1,2, Jingjing WU1,2, and Lifa HU1,2、*
Author Affiliations
  • 1College of Science,Jiangnan University,Wuxi 214122,China
  • 2Jiangsu Provincial Research Center of Light Industry Opto-electronic Engineering and Technology,Wuxi 214122,China
  • 3Xi'an Institute of Applied Optics,Xi'an 710000,China
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    Figures & Tables(21)
    Schematic of a moving coil voice coil actuator
    Cloud map of the mirror surface deformation under the action of the central driver
    Comparison of magnetization directions of perma-nent magnets
    Optimization of the outer radius of permanent magnets
    Comparison of height optimization for permanent magnets
    Comparison of inner radius optimization for coils
    Comparison of outer radius optimization for coils
    Comparison of coil height optimization
    Force and motor constant K as a function of air gap
    Response time at different currents
    Input-output linearity
    Variation of electromagnetic force with stroke
    Temperature rise and deformation without heat dissipation
    Temperature rise and deformation with heat dissipation applied
    Diagram of correction effects
    Correction of turbulent aberrations
    Correction effects of the first 35 Zernike aberrations
    • Table 1. Partial parameters of the voice coil deformation mirror

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      Table 1. Partial parameters of the voice coil deformation mirror

      名称参数要求
      单元数37
      镜面厚度0.2 mm
      镜面有效直径68 mm
      镜面材料Pyrex
      行程-20~20 μm
      带宽200 Hz
    • Table 2. Parameters that need optimizing for the driver

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      Table 2. Parameters that need optimizing for the driver

      参数优化范围步长
      永磁体外半径/mm[2.5,4.5]0.2
      永磁体高度/mm130.2
      线圈内半径/mm[0. 5,1]0.1
      漆包线线径/mm{0.2,0.5}
      线圈外半径/mm[3,4.5]0.1
      线圈高度/mm4120.4
      气隙/mm[0.05,0.25]0.05
    • Table 3. Parameters to be optimized for the driver

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      Table 3. Parameters to be optimized for the driver

      方案永磁体外半径/mm

      永磁体

      高度/mm

      电磁力/mN电机常数初始形变/μm
      13.52730.24120
      242830.27622
    • Table 4. Final parameters of VCA

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      Table 4. Final parameters of VCA

      对象属性数值
      永磁体内半径0.5 mm
      外半径4 mm
      高度2 mm
      线圈内半径1 mm
      外半径4 mm
      高度4 mm
      气隙0.1 mm
      电磁力0.093 N
      电机常数0.365 N·W-1/2
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    Jiuba GE, Mingxing LI, Shasha XU, Chen WANG, Ying ZHOU, Lin YU, Jingjing WU, Lifa HU. Optimization of actuator for voice coil deformation mirror with large phase stroke[J]. Chinese Journal of Liquid Crystals and Displays, 2025, 40(4): 555

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    Paper Information

    Category:

    Received: Dec. 4, 2024

    Accepted: --

    Published Online: May. 21, 2025

    The Author Email: Lifa HU (hulifa@jiannan.edu.cn)

    DOI:10.37188/CJLCD.2024-0339

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