Substrate guided relay with pupil expanding input coupler
First Claim
1. An optical substrate guided relay, comprising:
- an optical substrate having at least one major face;
an output coupler coupled to the at least one major face and comprising a plurality of partially reflective layers configured to perform pupil expansion on light received from the optical substrate in one dimension and to direct the light away from the optical substrate guided relay; and
an input coupler configured to receive light from a source, the input coupler being coupled to the at least one major face and comprising a plurality of reflective layers configured to extend a functional receiving surface for the light from the source.
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Accused Products
Abstract
An optical substrate guided relay (300) includes an optical substrate (302) having at least one major face (411), an output coupler (303) coupled to a major face (411,412), and an input coupler (301) coupled to a major face (411,412). The input coupler (301) is configured to reflect, via internal layers (414), portions of received light to the optical substrate 302. The input coupler (301) includes either one or more internal layers (414) or a contoured face (1040) with surfaces configured as reflectors that expand the received light and direct it into the optical substrate (302). The output coupler (303) expands a pupil of light in one direction and directs the expanded light away from the optical substrate guided relay.
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Citations
18 Claims
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1. An optical substrate guided relay, comprising:
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an optical substrate having at least one major face; an output coupler coupled to the at least one major face and comprising a plurality of partially reflective layers configured to perform pupil expansion on light received from the optical substrate in one dimension and to direct the light away from the optical substrate guided relay; and an input coupler configured to receive light from a source, the input coupler being coupled to the at least one major face and comprising a plurality of reflective layers configured to extend a functional receiving surface for the light from the source. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An optical substrate guided relay, comprising:
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an optical substrate having at least one major face; an output coupler coupled to the at least one major face and comprising a plurality of partially reflective layers configured to perform pupil expansion on light received from the optical substrate and direct the light received from the optical substrate away from the optical substrate guided relay; and an input coupler configured to receive light from a source, the input coupler having an input coupler face coupled to the at least one major face and a contoured face disposed opposite the input coupler face and configured as one or more reflectors, wherein the one or more reflectors are configured to reflect portions of the light received from the source into the optical substrate. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
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Specification