System, apparatus, and method for reducing birefringence
AssigneeE-Vision, LLC
InventorsRonald D. Blum, Dwight P. Dustin, Youval Katzman, Israel Grossinger, Uzi Efron, Dan Katzman
Life of this patent
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Abstract
An electro-active spectacle lens is disclosed. The disclosed lens includes a first lens optic. The disclosed lens also includes a first electro-active zone positioned in a cooperative relationship with the first lens optic. In certain embodiments, the electro-active lens includes a range finder positioned in a cooperative relationship with the electro-active lens.
Claims12
An electro-active lens comprising:
- a first electro-active layer;
- and
- a second electro-active layer, the first electro-active layer and the second electro-active layer being in optical communication with each other wherein, in an unactivated state, molecules of the first electro-active layer are aligned orthogonal to molecules of the second electro-active layer to reduce birefringence.
An electro-active lens comprising:
- a first electro-active layer;
- a second electro-active layer, the first electro-active layer and the second electro-active layer being in optical communication with each other wherein molecules of the first electro-active layer are aligned orthogonal to molecules of the second electro-active layer to reduce birefringence;
- and
- a double-sided plate with diffraction patterns etched on both sides of the plate, the plate in optical communication with the first electro-active layer and the second electro-active layer.
A method for reducing birefringence in a lens, comprising:
- providing a first electro-active layer of the lens;
- providing a second electro-active layer of the lens;
- and
- aligning, in an unactivated state, molecules of the first electro-active layer orthogonal to molecules of the second electro-active layer.
A method for reducing birefringence in a lens, comprising:
- providing a first electro-active layer of the lens;
- providing a second electro-active layer of the lens;
- providing a double-sided plate;
- aligning molecules of the first electro-active layer orthogonal to molecules of the second electro-active layer;
- and
- placing the first electro-active layer on one side of the double-sided plate and the second electro-active layer on the other side of the plate, the plate having diffraction patterns on both sides of the plate.
A system, comprising:
- a first electro-active layer;
- a second electro-active layer, wherein, in an unactivated state, molecules of the first electro-active layer are aligned orthogonal to molecules of the second electro-active layer to reduce birefringence;
- and
- an electro-active lens controller in communication with the first and second electro-active layers.
A system, comprising:
- a first electro-active layer;
- a second electro-active layer, wherein molecules of the first electro-active layer are aligned orthogonal to molecules of the second electro-active layer to reduce birefringence;
- an electro-active lens controller in communication with the first and second electro-active layers;
- and
- a double-sided plate with diffraction patterns etched on both sides of the plate, the plate in optical communication with the first electro-active layer and the second electro-active layer.
Dependencies are inferred from the claim text.