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Apparatus for image display with multi-focal length progressive lens or multiple discrete lenses each having different fixed focal lengths or a variable focal length

  • US 9,237,338 B1
  • Filed: 10/11/2014
  • Issued: 01/12/2016
  • Est. Priority Date: 10/14/2013
  • Status: Active Grant
First Claim
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1. Apparatus, comprising:

  • at least one processor and at least one memory including a computer program, the at least one memory and the computer program configured to, with the at least one processor, cause the apparatus to process at least one video signal comprising images of distant objects and images of near objects wherein the images of the near objects are plenoptic images optimized for spatial resolution at the expense of angular resolution and the images of the distant objects are plenoptic images optimized for angular resolution at the expense of spatial resolution, the apparatus further comprising;

    at least one display element, responsive to the at least one processed video signal, for providing light representative of the distant objects and for providing light representative of the near objects; and

    at least one optical element, responsive to the light representative of the near objects from the at least one display element, for providing video images of the near objects at one or more near focal lengths, and responsive to the light representative of distant objects from the at least one display element, for providing video images of the distant objects at one or more far focal lengths and positioned for viewing above the video images of the near objects.

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