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US 7,672,055 B2Granted
Substrate-guided optical devices
AssigneeLumus Ltd.
InventorYaakov Amitai
Life of this patent
Estimating the term…
Abstract
There is provided an optical device, having a light-transmitting substrate having at least two major surfaces (26) parallel to each other and edges; optical means (16) for coupling light waves located in a field-of-view into the substrate by internal reflection, and at least one partially reflecting surface (22) located in the substrate which is non-parallel to the major surfaces of the substrate, characterized in that at least one of the major surfaces is coated with a dichroic coating.
Claims16
An optical device, comprising:
- a light-transmitting substrate having at least two major surfaces parallel to each other and edges;
- a first optical element for coupling light waves located in a field-of-view into said substrate by internal reflection;
- and
- a second optical element for coupling said light waves out of said substrate, characterized in that at least one of said major surfaces is coated with an angular sensitive coating.
1 more element
Dependencies are inferred from the claim text.