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US 12,560,751 B2Granted
Thin film optics
AssigneeLockheed Martin Corporation
InventorJoseph Robert Buck
Life of this patent
Estimating the term…
Abstract
A method of manufacturing a thin film optical apparatus includes providing a substrate and applying an alignment layer over the substrate. The alignment layer ranges from about 50 to 100 nm in thickness. The method includes imprinting a hologram with a desired optic pattern onto the alignment layer and applying at least one layer of mesogen material over the alignment layer.
Claims11
An optical apparatus, comprising:
- a substrate comprising a first thickness;
- a first alignment layer positioned over the substrate, the first alignment layer comprising a second thickness less than the first thickness;
- a hologram integrated into the first alignment layer, the hologram comprising an optical pattern;
- at least one layer of mesogen material applied over the first alignment layer;
- a layer of reflective material positioned between the first alignment layer and the substrate;
- a first birefringent layer positioned over the first alignment layer, the first birefringent layer comprising a third thickness less than the first thickness and greater than the second thickness;
- a second alignment layer positioned over the first birefringent layer;
- and
- a second birefringent layer positioned over the second alignment layer.
6 more elements
An optical apparatus, comprising:
- a substrate;
- a first alignment layer positioned over the substrate;
- a quarter wave retarder positioned between the substrate and the first alignment layer, wherein in response to a light beam passing through the quarter wave retarder in a first direction, the quarter wave retarder is configured to alter a polarization state of the light beam passing through the quarter wave retarder in a second direction different from the first direction;
- a reflective layer positioned between and in contact with the quarter wave retarder and the substrate;
- a second alignment layer;
- and
- a first buffer layer positioned between and in contact with the first alignment layer and the second alignment layer, wherein in response to a light beam passing through the quarter wave retarder, the first alignment layer, the second alignment layer, and the first buffer layer:
- the first alignment layer, the first buffer layer, and the second alignment layer combine to form an achromatic lens for a first polarization state, and
- the quarter wave retarder is configured to change the first polarization state to a second polarization state.
6 more elements
Dependencies are inferred from the claim text.