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Vehicular display device adjusting to driver's positions

  • US 5,734,357 A
  • Filed: 09/08/1995
  • Issued: 03/31/1998
  • Est. Priority Date: 12/02/1994
  • Status: Expired due to Term
First Claim
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1. A display device which displays information concerning vehicles by forming a virtual image of the information in front of a driver, comprising:

  • an indicator for displaying the information;

    an optical system forming the virtual image of the information displayed on the indicator in front of the driver by transferring light emitted from the indicator through a projecting light path, said optical system including a deflector which deflect the projecting light path;

    a photographing unit for photographing the driver by use of light transferred through a photographing light path;

    an optical element positioned between the indicator and the deflector which combines the projecting light path with the photographing light path into common light path extending toward the driver;

    an image processing unit for detecting a position of the driver from pictures photographed by said photographing unit; and

    an adjusting mechanism for adjusting a deflection angle of the common light path due to the deflector so that the light is incident on an eye of the driver, on the basis of the position of the driver detected by said image processing unit.

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