OPTICAL MEMBER, DISPLAY DEVICE USING THE OPTICAL MEMBER AND MOVABLE BODY USING THE DISPLAY DEVICE
First Claim
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.
1 Assignment
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Accused Products
Abstract
There is provided an optical member comprising: a first optical layer having: 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 a second main face formed with: a convex section having a convex curved surface that is provided facing the concave section and constituting a second main face facing the first main face; and a plurality of convex ridges having convex curved surfaces provided facing the plurality of convex ridges having the concave curved surface, provided in concentric circular fashion around the convex section; and a second optical layer provided on the first main face of the first optical layer; and a third optical layer provided on the second main face of the first optical layer; wherein the refractive index of the first optical layer is higher than the refractive index of the second optical layer and is higher than the refractive index of the third optical layer.
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Citations
10 Claims
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1. An optical member comprising:
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(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. - View Dependent Claims (2, 3, 6, 7, 8, 9, 10)
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4. An optical member comprising:
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(4) a fourth optical layer having;
a 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;(5) a semi-transparent layer provided on said main face of said fourth optical layer; and (6) a fifth optical layer provided on a main face on an opposite side to said fourth optical layer of said semi-transparent layer, wherein a refractive index of said fourth optical layer and a refractive index of said fifth optical layer are substantially the same. - View Dependent Claims (5)
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Specification