• Laser & Optoelectronics Progress
  • Vol. 55, Issue 11, 112201 (2018)
Rui Wang1、*, Lun Jiang2、*, and Zhihua Song1
Author Affiliations
  • 1 College of Optoelectronic Engineering, Changchun University of Science and Technology, Changchun, Jilin 130022, China
  • 2 Key Laboratory of Fundamental Science for National Defense of Aero and Ground Laser Communication Technology, Changchun University of Science and Technology, Changchun, Jilin 130022, China
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    DOI: 10.3788/LOP55.112201 Cite this Article Set citation alerts
    Rui Wang, Lun Jiang, Zhihua Song. Optical Design of Ensemble Head-Up Display System Based on Mini-Projector[J]. Laser & Optoelectronics Progress, 2018, 55(11): 112201 Copy Citation Text show less
    Reflective optical system
    Fig. 1. Reflective optical system
    Overall structure diagram
    Fig. 2. Overall structure diagram
    Diagram of horizontal FOV size
    Fig. 3. Diagram of horizontal FOV size
    Diagram of eyebox size
    Fig. 4. Diagram of eyebox size
    Component location diagram
    Fig. 5. Component location diagram
    Optical path of reflection system
    Fig. 6. Optical path of reflection system
    3D image of reflection system
    Fig. 7. 3D image of reflection system
    Reflection path diagram of windshield
    Fig. 8. Reflection path diagram of windshield
    Optical transfer functions when human eyes are at different positions in the eyebox. (a) Upper limb; (b) middle; (c) lower limb
    Fig. 9. Optical transfer functions when human eyes are at different positions in the eyebox. (a) Upper limb; (b) middle; (c) lower limb
    Optical path of projection lens
    Fig. 10. Optical path of projection lens
    Optical transfer functions of projection lens
    Fig. 11. Optical transfer functions of projection lens
    RMS of projection lens
    Fig. 12. RMS of projection lens
    System parameterValue
    Display band486-656 nm
    Highest brightness1500 nits
    Light intensity contrast1.2 at 50% brightness
    ResolutionHD (1280 pixel&#x000D7;<break/>720 pixel)
    Distance from projection to<break/>diffuser screen (PD)123 mm
    Distance between diffuser<break/>screen and mirror (DM)50 mm
    Distance between mirror<break/>and combiner (MC)150 mm
    Virtual image distance (VID)2500 mm
    Eyebox size140 mm&#x000D7;60 mm
    Distance between combiner<break/>and eyebox (CE)750 mm
    Field of view12&#x000b0;&#x000D7;6.75&#x000b0;
    Table 1. Optical design parameters
    ParameterValue
    Wavelength range486-656 nm
    Image resolution1280 pixel&#x000D7;720 pixel
    Virtual image distance2500 mm
    Eyebox140 mm&#x000D7;60 mm
    Distance from eye to image750 mm
    Field of view12&#x000b0;&#x000D7;6.75&#x000b0;
    Table 2. Optical system parameters
    ParameterValue
    Spectrum range486-656 nm
    Focus10 mm
    Field of view38.12&#x000b0;&#x000D7;22.01&#x000b0;
    Image size6.91 mm&#x000D7;3.89 mm (7.93 mm)
    <italic>F</italic> number4
    Length-width ratio16:9
    DMD0.3 inch (1 inch=2.54 cm)
    Table 3. Optical design parameters
    Rui Wang, Lun Jiang, Zhihua Song. Optical Design of Ensemble Head-Up Display System Based on Mini-Projector[J]. Laser & Optoelectronics Progress, 2018, 55(11): 112201
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