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US 2013/0279017 A1Published application
Substrate-guided optical device
AssigneeLumus Ltd.
InventorYaakov Amitai
Life of this patent
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Abstract
There is provided an optical device, including a light waves-transmitting substrate having two major surfaces and edges, optical means for coupling light into the means for coupling light into the substrate by total internal reflection, and plurality of partially reflecting surfaces (22a, 22b) carried by the substrate wherein the partially reflecting surfaces (22a, 22b) are parallel to each other and are not parallel to any of the edges of the substrate, and wherein one or more of the partially reflecting surfaces (22a, 22b) is an anisotropic surface.
Claims6
An optical device, comprising:
- a light waves-transmitting substrate having at least two major surfaces and edges;
- a display source;
- optical means for coupling light waves from the display source into the substrate by total internal reflection, and
- a plurality of partially reflecting surfaces carried by the substrate wherein the partially reflecting surfaces are parallel to each other and are not parallel to any of the edges of the substrate;
- characterized in that the optical device allows dual operational modes in see-through configuration, wherein in a first mode, image light waves are projected from the display source through the substrate into an eye of a viewer, and in a second mode, the display source is shut-off and an external scene is viewable through the substrate.
2 more elements
An optical device, comprising:
- a light waves-transmitting substrate having at least two major surfaces and edges;
- a display source;
- optical means for coupling light waves from the display source into the substrate by total internal reflection,
- a plurality of partially reflecting surfaces carried by the substrate wherein the partially reflecting surfaces are parallel to each other and are not parallel to any of the edges of the substrate, and
- wherein the plurality of partially reflecting surfaces defines an active area and an inactive area of the substrate, an image from the display source is projected through the active area of the substrate into at least one eye of a viewer and an external scene is transmitted through an inactive area of the substrate to at least one eye of a viewer.
2 more elements
Dependencies are inferred from the claim text.