On-vehicle display

  • US 5,510,983 A
  • Filed: 11/12/1993
  • Issued: 04/23/1996
  • Est. Priority Date: 11/13/1992
  • Status: Expired due to Term
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First Claim
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1. An on-vehicle display for displaying an image projected from within a dashboard of a vehicle, comprising:

  • a windshield;

    a first reflecting surface defined by a lower end portion of the inner surface of the windshield, said first reflecting surface being operative to reflect an image projected from within the dashboard into a driver'"'"'s eyes when the image falls on said first reflecting surface; and

    a second reflecting surface being fixed with respect to said windshield at a position lower than said first reflecting surface, said second reflecting surface being angularly displaced with respect to said first reflecting surface and being operative to reflect an image projected from within the dashboard into the driver'"'"'s eyes when the image falls on said second reflecting surface;

    angularly adjustable image projecting means for projecting an image onto said first reflecting surface or said second reflecting surface,a light sensor; and

    a controller operative during a predetermined set of light conditions, as determined by said light sensor, to vary the disposition of said image projecting means to direct said image to various positions on said first reflecting surface when said vehicle operates over a higher range of speeds and to direct said image to various positions on said second reflecting surface when said vehicle operates over a range of speeds lower than said higher range of speeds;

    said controller including means operated in response to said light sensor to restrict the disposition of said image projecting means to direct said image to various positions on said second reflecting surface over the entire range of vehicle speeds when said light conditions are outside of said predetermined set of conditions;

    wherein the driver views a virtual image of the image projected from within the dashboard behind said first reflecting surface or said second reflecting surface.

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