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Head-up display apparatus

  • US 5,162,928 A
  • Filed: 07/29/1991
  • Issued: 11/10/1992
  • Est. Priority Date: 11/02/1988
  • Status: Expired due to Fees
First Claim
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1. A head-up display apparatus for displaying an image to a viewer, comprising:

  • a laser emitting an infrared beam;

    means for producing a beam indicative of the image from the infrared beam;

    a beam combiner; and

    a non-linear optical element for converting the beam indicative of the image into a visible diffusion-harmonic beam and for directing the diffusion-harmonic beam to the viewer through said beam combiner, whereina visible image formed on said non-linear optical element and a landscape are combined by said beam combiner.

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