Optical film having a surface with rounded structures
First Claim
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1. An optical device comprising:
- a light source and an optical film having a first surface disposed to receive light from the light source, the optical film comprising a polarizer, and a second surface facing away from the light source, the second surface comprising a two-dimensional array of closely packed substantially hemispherically-shaped structures.
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Abstract
The present disclosure is directed to optical devices including a light source and an optical film having a first surface disposed to receive light from the light source and a second surface facing away from the light source. The second surface includes a two-dimensional array of closely packed substantially hemispherically-shaped structures. In some implementations of the present disclosure, the optical film further includes a substrate portion having an optical characteristic different from optical characteristics of the second surface comprising the two dimensional array.
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Citations
20 Claims
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1. An optical device comprising:
a light source and an optical film having a first surface disposed to receive light from the light source, the optical film comprising a polarizer, and a second surface facing away from the light source, the second surface comprising a two-dimensional array of closely packed substantially hemispherically-shaped structures. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An optical device comprising:
a light source and an optical film having a first surface disposed to receive light from the light source and a second surface facing away from the light source, the second surface comprising a two dimensional array including a first plurality of substantially hemispherically-shaped structures having a first radius and a second plurality of substantially hemispherically-shaped structures having a second radius different from the first radius, wherein the first and second pluralities of structures are closely packed. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19)
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20. An optical device comprising:
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a light source and an optical film having a first surface disposed to receive light from the light source and a second surface facing away from the light source, the second surface comprising a two dimensional array including a plurality of closely packed substantially hemispherically-shaped structures having substantially the same radii;
wherein the optical film further comprises a substrate portion having an optical characteristic different from optical characteristics of the second surface comprising the two dimensional array.
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Specification