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US 2003/0165017 A1Published application
Substrate-guided optical beam expander
AssigneeLumus Ltd.
InventorYaakov Amitai
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Abstract
The invention provides an optical device, including a light-transmitting substrate, optical means for coupling light into the substrate by total internal reflection, and a plurality of partially reflecting surfaces carried by the substrate, characterized in that the partially reflecting surfaces are parallel to each other and are not parallel to any of the edges of the substrate.
Claims42
An optical device, comprising:
- a light-transmitting substrate;
- optical means for coupling light into said substrate by total internal reflection, and
- a plurality of partially reflecting surfaces carried by said substrate;
- characterized in that said partially reflecting surfaces are parallel to each other and are not parallel to any of the edges of said substrate.
1 more element
Dependencies are inferred from the claim text.