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OPTICAL ELEMENT WITH A FRESNEL STRUCTURE, AND DISPLAY DEVICE WITH SUCH AN OPTICAL ELEMENT

  • US 20160349512A1
  • Filed: 07/25/2014
  • Published: 12/01/2016
  • Est. Priority Date: 07/26/2013
  • Status: Active Grant
First Claim
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1. An optical element, comprising:

  • a Fresnel structure including several Fresnel segments, wherein each Fresnel segment has an optically active facet, wherein the shape of the optically active facet is part of a predetermined surface, and wherein each of the predetermined surfaces of the optically active facets of each of the several Fresnel segments has a different curvature profile.

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