Substrate-Guided Optical Device with Wide Aperture
First Claim
1. An optical device, comprising:
- a light-transmitting substrate having at least two major surfaces parallel to each other and edges;
optical means for coupling light into said substrate, andat least one reflecting surface located in said substrate which is non-parallel to said major surfaces of the substrate characterized in that said optical means for coupling light into said substrate is a partially reflecting surface, wherein part of the light coupled into the substrate passes through the partially reflecting surface out of said substrate and part of said light is reflected into the substrate by total internal reflection.
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Accused Products
Abstract
There is provided an optical device, having a light-transmitting substrate (20) including at least two major surfaces parallel to each other and edges; optical means (16) for coupling light into the substrate by internal reflection, and at least one reflecting, surface (22) located in the substrate which is non-parallel to the major surfaces of the substrate (20) characterized in that the optical means (16) for coupling light into the substrate is a partially reflecting surface, wherein part of the light coupled into the substrate (20) passes through the partially reflecting surface (16) out of the substrate and part of the light is reflected into the substrate (20).
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Citations
39 Claims
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1. An optical device, comprising:
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a light-transmitting substrate having at least two major surfaces parallel to each other and edges; optical means for coupling light into said substrate, and at least one reflecting surface located in said substrate which is non-parallel to said major surfaces of the substrate characterized in that said optical means for coupling light into said substrate is a partially reflecting surface, wherein part of the light coupled into the substrate passes through the partially reflecting surface out of said substrate and part of said light is reflected into the substrate by total internal reflection. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39)
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Specification