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OPTICAL MEMBER, DISPLAY DEVICE USING THE OPTICAL MEMBER AND MOVABLE BODY USING THE DISPLAY DEVICE

  • US 20100073579A1
  • Filed: 09/21/2009
  • Published: 03/25/2010
  • Est. Priority Date: 09/25/2008
  • Status: Abandoned Application
First Claim
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1. An optical member comprising:

  • (1) a first optical layer having;

    (a) a first main face formed with a concave section having a concave curved surface, and a plurality of convex ridges having concave curved surfaces provided in concentric circular fashion around said concave section; and

    (b) a second main face formed with;

    a convex section having a convex curved surface that is provided facing said concave section and constituting said second main face facing said first main face; and

    a plurality of convex ridges having convex curved surfaces provided facing the plurality of convex ridges having said concave curved surface, provided in concentric circular fashion around said convex section; and

    (2) a second optical layer provided on the first main face of said first optical layer; and

    (3) a third optical layer provided on the second main face of said first optical layer,wherein a refractive index of said first optical layer is higher than a refractive index of said second optical layer and is higher than a refractive index of said third optical layer.

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