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Chinese Optics Letters, Volume. 14, Issue 2, 022201(2016)

Efficiency balance of a light guide plate with microstructures for a see-through head-mounted display

Kai-Wei Zhao1 and Jui-Wen Pan2,3,4、*
Author Affiliations
  • 1Institute of Lighting and Energy Photonics, National Chiao Tung University, Tainan City 71150, China
  • 2Institute of Photonic System, National Chiao Tung University, Tainan City 71150, China
  • 3Biomedical Electronics Translational Research Center, National Chiao Tung University, Hsin-Chu City 30010, China
  • 4Department of Medical Research, Chi Mei Medical Center, Tainan 71004, China
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    Figures&Tables (7)
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    References (13)
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    Figures & Tables(7)
    Layout of the see-through HMD taken from previous studies.

    Fig. 1. Layout of the see-through HMD taken from previous studies.

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    Layout of trapezoidal microstructures shown in previous research: (a) the total distribution area of the microstructures and (b) a magnified image.

    Fig. 2. Layout of trapezoidal microstructures shown in previous research: (a) the total distribution area of the microstructures and (b) a magnified image.

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    Projection of surface A1 on side g.

    Fig. 3. Projection of surface A1 on side g.

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    Simulated values of the optical efficiencies of the virtual image and the real image under different microstructure conditions.

    Fig. 4. Simulated values of the optical efficiencies of the virtual image and the real image under different microstructure conditions.

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    Suitable conditions for a see-through HMD for daily applications, feasible condition, and visibility for the previous design; lateral size of 100 μm.

    Fig. 5. Suitable conditions for a see-through HMD for daily applications, feasible condition, and visibility for the previous design; lateral size of 100 μm.

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    (a) Visibility for optimal condition. (1.01). (b) Visibility of feasible condition. (0.524).

    Fig. 6. (a) Visibility for optimal condition. (1.01). (b) Visibility of feasible condition. (0.524).

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    • Table 1. Summary of the Efficiency Balance for Different Microstructure Conditions

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      Table 1. Summary of the Efficiency Balance for Different Microstructure Conditions

      Lateral size a (μm)Space d (μm)Gap b (μm)Ratio of a and b (b/a)Balance value of the optical efficiency (%)
      100100.100.111.10×10367.38
      9090.000.101.11×10366.95
      8080.900.091.12×10367.28
      7070.700.071.00×10366.63
      6060.700.071.16×10367.00
      5050.600.061.20×10367.06
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    Kai-Wei Zhao, Jui-Wen Pan, "Efficiency balance of a light guide plate with microstructures for a see-through head-mounted display," Chin. Opt. Lett. 14, 022201 (2016)

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    Paper Information

    Category: Optical Design and Fabrication

    Received: Aug. 10, 2015

    Accepted: Nov. 26, 2015

    Published Online: Sep. 21, 2018

    The Author Email: Jui-Wen Pan (juiwenpan@gmail.com)

    DOI:10.3788/COL201614.022201

    Topics

    laser devices and laser physics
    Lasers and Laser Optics
    Laser physics
    laser manufacturing
    Instrumentation, Measurement and Metrology