Patterned anisotropic films and optical elements therewith
AssigneeMeta Platforms Technologies, LLC
InventorsLu Lu, Xiayu Feng, Mengfei Wang, Hao Yu, Ryan Li, Yun-Han Lee, Junren Wang, Barry David Silverstein
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Abstract
A first layer of anisotropic material extends along a first plane and includes anisotropic components being parallel to a second plane non-parallel and non-perpendicular to the first plane. The anisotropic components are arranged in cycloidal or helical patterns. The cycloidal or helical patterns define one or more Bragg planes that are non-parallel and non-perpendicular to the first plane and either substantially parallel or substantially perpendicular to the second plane.
Claims20
An optical element, comprising:
- a first layer of anisotropic material extending along a first plane and including cycloidal or helical patterns non-parallel and non-perpendicular to the first plane, wherein each cycloidal or helical pattern includes a plurality of discrete anisotropic components, and the cycloidal or helical patterns of the anisotropic material define one or more Bragg planes that are either substantially parallel or substantially perpendicular to the cycloidal or helical patterns.
An optical element, comprising:
- a first layer of anisotropic material extending along a first plane and including cycloidal patterns non-parallel and non-perpendicular to the first plane, wherein the cycloidal patterns of the anisotropic material define one or more Bragg planes that are substantially perpendicular to the anisotropic material defining the cycloidal patterns, and the optical element is a transmissive optical element.
An optical element, comprising:
- a first layer of anisotropic material extending along a first plane and including helical patterns non-parallel and non-perpendicular to the first plane, wherein the helical patterns of the anisotropic material define one or more Bragg planes that are substantially parallel to the anisotropic material defining the helical patterns, and the optical element is a reflective optical element.
Dependencies are inferred from the claim text.