Self-compensated liquid crystal polymer coatings on curved optical surface
First Claim
1. A method, comprising:
- applying a layer of photoalignment material on a substrate having a non-flat optical surface so that the layer of photoalignment material is located on the non-flat optical surface of the substrate and the layer of photoalignment material conforms to the non-flat optical surface of the substrate;
subsequent to applying the layer of photoalignment material on the substrate, exposing the layer of photoalignment material to alignment light that satisfies photoalignment criteria that are determined based on a non-uniform thickness profile of a layer of liquid crystal material to be placed over the non-flat optical surface of the substrate; and
applying the layer of liquid crystal material over the layer of photoalignment material.
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Abstract
A method disclosed herein includes applying a layer of photoalignment material on a non-flat optical surface, and exposing the layer of photoalignment material to alignment light that satisfies photoalignment criteria that are determined based on a representative thickness profile of a layer of liquid crystal material. The method also includes applying the layer of liquid crystal material over the layer of photoalignment material. Also disclosed is an optical element including a non-flat optical surface, a first layer of photoalignment material applied on the non-flat optical surface and a first layer of liquid crystal material. The layer of photoalignment material is aligned based on alignment light that satisfies photoalignment criteria that are determined based on a representative thickness profile of the layer of liquid crystal polymers.
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Citations
20 Claims
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1. A method, comprising:
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applying a layer of photoalignment material on a substrate having a non-flat optical surface so that the layer of photoalignment material is located on the non-flat optical surface of the substrate and the layer of photoalignment material conforms to the non-flat optical surface of the substrate; subsequent to applying the layer of photoalignment material on the substrate, exposing the layer of photoalignment material to alignment light that satisfies photoalignment criteria that are determined based on a non-uniform thickness profile of a layer of liquid crystal material to be placed over the non-flat optical surface of the substrate; and applying the layer of liquid crystal material over the layer of photoalignment material. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. An optical element, comprising:
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a substrate having a non-flat optical surface; a first layer of photoalignment material applied on the non-flat optical surface so that the first layer of photoalignment material is located on the non-flat optical surface of the substrate and the first layer of photoalignment material conforms to the non-flat optical surface of the substrate, wherein; the first layer of photoalignment material is aligned based on first alignment light that satisfies photoalignment criteria that are determined based on a non-uniform thickness profile of a first layer of liquid crystal material to be placed over the non-flat optical surface of the substrate; and the first layer of liquid crystal material. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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Specification