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US 2020/0233128 A1Published application
Optical article with a holographic waveguide
AssigneeEssilor International
InventorsAude BOUCHIER, Claudine BIVER
Life of this patent
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Abstract
An optical article including a substrate, and a holographic waveguide covering at least part of the substrate and including two main surfaces, at least one of them conforming to a surface of the substrate, and at least first and second zones that are configured so that light incoming on one of the first and second zones is at least partially guided towards the other of the first and second zones.
Claims15
An optical article comprising at least:
- a substrate, and
- a holographic waveguide covering at least part of the substrate and comprising:
- two main surfaces, at least one of them conforming to a surface of the substrate, and
- at least first and second zones that are configured so that light incoming on one of the first and second zones is at least partially guided towards the other of said first and second zones.
1 more element
A method for selectively propagating light in a substrate comprising:
- providing an optical article comprising a substrate, and a holographic waveguide covering at least part of the substrate and comprising:
- two main surfaces, at least one of them conforming to a surface of the substrate, and
- at least first and second zones that are configured so that light incoming on one of the first and second zones is at least partially guided towards the other of said first and second zones
- illuminating the holographic waveguide with light arriving at one of the first and second zones,
- selectively coupling the light into the waveguide,
- guiding the rays of light in the holographic waveguide in the direction of the other of the first and second zones.
3 more elements
Dependencies are inferred from the claim text.