Virtual image display with curved light path
First Claim
Patent Images
1. A display comprising:
- a projector configured to provide light of a virtual image;
a waveguide into which the light of the virtual image is injected at an injection angle by the projector, wherein the waveguide is configured to emit the light at a point established by the injection angle; and
a combiner disposed along the waveguide and configured to redirect the light of the virtual image, the combiner being further configured to allow ambient light from beyond the waveguide to pass through the combiner;
wherein;
the waveguide constrains the light of the virtual image through total internal reflection along a curved path for the light between the projector and the combiner;
the combiner is transparent at wavelengths other than wavelengths of the light of the virtual image provided by the projector; and
the combiner redirects the wavelengths of the light of the virtual image provided by the projector.
2 Assignments
0 Petitions
Accused Products
Abstract
A display includes a projector configured to provide light of a virtual image, a waveguide into which the light of the virtual image is injected at an injection angle by the projector, and a combiner disposed along the waveguide and configured to redirect the light of the virtual image. The waveguide is configured to emit the light at a point established by the injection angle. The combiner is further configured to allow ambient light from beyond the waveguide to pass through the combiner. The waveguide constrains the light of the virtual image through total internal reflection along a curved path for the light between the projector and the combiner.
18 Citations
21 Claims
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1. A display comprising:
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a projector configured to provide light of a virtual image; a waveguide into which the light of the virtual image is injected at an injection angle by the projector, wherein the waveguide is configured to emit the light at a point established by the injection angle; and a combiner disposed along the waveguide and configured to redirect the light of the virtual image, the combiner being further configured to allow ambient light from beyond the waveguide to pass through the combiner; wherein; the waveguide constrains the light of the virtual image through total internal reflection along a curved path for the light between the projector and the combiner; the combiner is transparent at wavelengths other than wavelengths of the light of the virtual image provided by the projector; and the combiner redirects the wavelengths of the light of the virtual image provided by the projector. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. An electronic device comprising:
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a camera to capture data indicative of an image of a pupil of a viewer viewing the display; a memory in which pupil tracking instructions and projector control instructions are stored; a processor configured by the pupil tracking instructions to determine a position of the pupil based on the captured data; and a display comprising; a holographic projector configured to provide light of a virtual image; a waveguide into which the light of the virtual image is injected at an injection angle by the projector, wherein the waveguide is configured to emit the light at a point established by the injection angle; and a combiner disposed along the waveguide and configured to redirect the light of the virtual image, the combiner being further configured to allow ambient light from beyond the waveguide to pass through the combiner; wherein; the waveguide constrains the light of the virtual image through total internal reflection along a curved path for the light between the projector and the combiner; the processor is configured by the projector control instructions to generate a control signal to establish the injection angle of the projector; the combiner is transparent at wavelengths other than wavelengths of the light of the virtual image provided by the projector; and the combiner redirects the wavelengths of the light of the virtual image provided by the projector. - View Dependent Claims (15, 16, 17, 18)
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19. An eyeglass display device comprising:
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an eyeglass temple; an eyeglass frame coupled to the eyeglass temple; a projector disposed on the eyeglass temple and configured to provide light of a virtual image; a waveguide into which the light of the virtual image is injected at an injection angle by the projector, the waveguide comprising a first section extending from the projector and along the eyeglass temple, a second section disposed at the eyeglass frame, and a third section disposed between the first and second sections and defining a curved path; and a combiner disposed at the eyeglass frame along the second section of the waveguide, the combiner being configured to redirect the light of the virtual image, and being further configured to allow ambient light from beyond the waveguide to pass through the combiner; wherein; the waveguide constrains the light of the virtual image through total internal reflection along a curved path for the light between the projector and the combiner; the combiner is transparent at wavelengths other than wavelengths of the light of the virtual image provided by the projector; and the combiner redirects the wavelengths of the light of the virtual image provided by the projector. - View Dependent Claims (20, 21)
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Specification