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DIFFRACTIVE OPTICAL RELAY DEVICE WITH IMPROVED COLOR UNIFORMITY

  • US 20100177388A1
  • Filed: 08/22/2007
  • Published: 07/15/2010
  • Est. Priority Date: 08/23/2006
  • Status: Abandoned Application
First Claim
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1. An optical relay device, comprising a light-transmissive substrate having a plurality of diffractive optical elements, wherein at least one diffractive optical element is characterized by nonuniform diffraction efficiency;

  • said substrate and said diffractive optical elements being designed and constructed to relay at least a portion of a polychromatic light beam emanating from an object to at least one predetermined eye-box in a manner such that for each point of the object, there is a set of parallel outgoing light rays originating from said point and arriving to said eye-box, wherein a color difference between any two parallel light rays of said set is less than 50 Δ

    E* units.

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