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Image display apparatus

  • US 5,589,956 A
  • Filed: 04/04/1996
  • Issued: 12/31/1996
  • Est. Priority Date: 07/31/1992
  • Status: Expired due to Term
First Claim
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1. An image display apparatus comprising:

  • a plurality of image display elements; and

    a hologram optical element provided with a plurality of elementary hologram optical elements having an optical power corresponding to said plurality of image display elements, whereineach of said elementary hologram optical elements diffracts light from a corresponding one of said image display elements, said plurality of diffracted light traveling to a single pupil of an observer positioned at a predetermined position with respect to said hologram optical element, so that a virtual image by each said image display element is formed on the same virtual image plane to allow the observer to observe the virtual image as a single continuous virtual image.

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