ALIGNMENT-INSENSITIVE IMAGE INPUT COUPLING
First Claim
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1. A near-eye display device, comprising:
- one or more waveguides;
for each waveguide, a light input coupling configured to receive light at a first side of the waveguide to couple the light into the waveguide; and
for each waveguide, a light output coupling configured to emit light from the waveguide at a second side of the waveguide, the second side of the waveguide being opposite the first side of the waveguide.
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Abstract
Various embodiments are disclosed herein that relate to coupling light into waveguides in a near-eye display device in a manner configured to be tolerant to misalignment of the waveguides with each other and/or other optics. For example, one disclosed embodiment provides a near-eye display device comprising one or more waveguides, wherein each waveguide comprises a light input coupling configured to receive light at a first side of the waveguide to couple the light into the waveguide, and a light output coupling configured to emit light from the waveguide at a second side of the waveguide, the second side of the waveguide being opposite the first side of the waveguide.
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Citations
20 Claims
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1. A near-eye display device, comprising:
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one or more waveguides; for each waveguide, a light input coupling configured to receive light at a first side of the waveguide to couple the light into the waveguide; and for each waveguide, a light output coupling configured to emit light from the waveguide at a second side of the waveguide, the second side of the waveguide being opposite the first side of the waveguide. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A near-eye display device, comprising:
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a microdisplay; a waveguide stack including a plurality of waveguides separated by one or more spacers, an input coupling configured to receive light input at a first side of the waveguide stack, and an output coupling configured to emit light from a second, opposite side of the waveguide stack as the first side; and a reflective structure configured to direct light from the microdisplay received from around an edge of the waveguide stack into the input coupling at the first side of the waveguide stack. - View Dependent Claims (9, 10, 11, 12)
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13. A method of directing light to a user of a near-eye display, the method comprising:
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directing light from a light source into an input coupling at a first side of a waveguide; directing light through the waveguide to an output coupling; and directing light out of the output coupling at a second side of the waveguide, wherein the second side is different than a first side. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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Specification