WIDE FIELD-OF-VIEW VIRTUAL IMAGE PROJECTOR
First Claim
Patent Images
1. A virtual image projector comprising:
- a spatial light modulator configured to output modulated light rays;
an input wedge positioned proximate the spatial light modulator, the input wedge configured to receive the modulated light rays from the spatial light modulator and to output the light rays at an increased fan-out angle; and
an output light guide configured to receive the light rays, at the increased fan-out angle, from the input wedge, and to diffract the light rays out of the output light guide to generate a virtual image.
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Abstract
This document describes techniques and apparatuses for implementing a wide field-of-view virtual image projector. A wide field-of-view virtual image projector may include a spatial light modulator configured to inject light rays into an input wedge. The input wedge acts to output the light rays with an increased fan-out angle into an output light guide positioned proximate the input wedge. The spatial light modulator is controlled to inject light rays into the input wedge effective to diffract the light rays out of the output light guide to generate a virtual image.
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Citations
20 Claims
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1. A virtual image projector comprising:
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a spatial light modulator configured to output modulated light rays; an input wedge positioned proximate the spatial light modulator, the input wedge configured to receive the modulated light rays from the spatial light modulator and to output the light rays at an increased fan-out angle; and an output light guide configured to receive the light rays, at the increased fan-out angle, from the input wedge, and to diffract the light rays out of the output light guide to generate a virtual image. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method comprising:
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receiving data corresponding to a virtual image; and controlling a spatial light modulator to inject light rays into an input wedge effective to diffract the light rays out of an output light guide to generate the virtual image. - View Dependent Claims (11, 12, 13, 14)
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15. A head-mounted display device comprising:
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a light source configured to emit light rays; a spatial light modulator configured to modulate the light rays; an input wedge configured to receive the modulated light rays from the spatial light modulator and to output the light rays at an increased fan-out angle; an output light guide configured to receive the light rays, at the increased fan-out angle, from the input wedge, and to diffract the light rays out of the output light guide to generate a virtual image; and a controller configured to control the spatial light modulator to inject the light rays into the input wedge to cause the light rays to be diffracted out of the output light guide to generate the virtual image. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification