Eye tracking head mounted display
First Claim
1. A head mounted display device, the device comprising:
- a mount which secures the device near a user'"'"'s head;
a beam-splitter attached to said mount with movement devices, wherein said movement devices displace said beam-splitter about a center of rotation of an eye of the user, and wherein said beam-splitter;
reflects at least one output image toward the user'"'"'s eye, andtransmits light incident on said beam-splitter to the user'"'"'s eye;
an image projector, which projects said at least one output image onto said beam-splitter;
an eye-tracker which measures the viewing direction of an eye of the user and produces corresponding coordinate information; and
at least one processor, in communication with said eye-tracker and said movement devices, which commands said movement devices to reposition said beam-splitter based on said coordinate information.
1 Assignment
0 Petitions
Accused Products
Abstract
A head mounted display device has a mount which attaches the device to a user'"'"'s head, a beam-splitter attached to the mount with movement devices, an image projector which projects images onto the beam-splitter, an eye-tracker which tracks a user'"'"'s eye'"'"'s gaze, and one or more processors. The device uses the eye tracker and movement devices, along with an optional head-tracker, to move the beam-splitter about the center of the eye'"'"'s rotation, keeping the beam-splitter in the eye'"'"'s direct line-of-sight. The user simultaneously views the image and the environment behind the image. A second beam-splitter, eye-tracker, and projector can be used on the user'"'"'s other eye to create a stereoptic, virtual environment. The display can correspond to the resolving power of the human eye. The invention presets a high-resolution image wherever the user looks.
218 Citations
29 Claims
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1. A head mounted display device, the device comprising:
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a mount which secures the device near a user'"'"'s head; a beam-splitter attached to said mount with movement devices, wherein said movement devices displace said beam-splitter about a center of rotation of an eye of the user, and wherein said beam-splitter; reflects at least one output image toward the user'"'"'s eye, and transmits light incident on said beam-splitter to the user'"'"'s eye; an image projector, which projects said at least one output image onto said beam-splitter; an eye-tracker which measures the viewing direction of an eye of the user and produces corresponding coordinate information; and at least one processor, in communication with said eye-tracker and said movement devices, which commands said movement devices to reposition said beam-splitter based on said coordinate information. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A method of displaying an image, the method comprising:
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producing an image at an image projector; projecting said image onto a beam-splitter; said beam-splitter reflecting said image toward a user'"'"'s eye, said beam-splitter transmitting light incident upon it to a user'"'"'s eye; tracking changes in the direction of a user'"'"'s eye'"'"'s gaze, producing coordinate information based on said changes in the direction of a user'"'"'s eye'"'"'s gaze, applying said coordinate information to determine a position for said beam-splitter which would place it within a user'"'"'s eye'"'"'s gaze, and moving said beam-splitter so as to place it at the center of the user'"'"'s eye'"'"'s gaze. - View Dependent Claims (19, 20, 21, 22, 23)
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24. A system for displaying an image, the system comprising:
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means for producing an image at an image projector; means for projecting said image onto a beam-splitter; said beam-splitter having means for reflecting said image toward a user'"'"'s eye, said beam-splitter having means for transmitting light incident upon it to a user'"'"'s eye; means for tracking changes in the direction of a user'"'"'s eye'"'"'s gaze, means for producing coordinate information based on said changes in the direction of a user'"'"'s eye'"'"'s gaze, means for applying said coordinate information to determine a position for said beam-splitter which would place it within a user'"'"'s eye'"'"'s gaze, and means for moving said beam-splitter so as to place it in the user'"'"'s eye'"'"'s gaze. - View Dependent Claims (25, 26, 27, 28, 29)
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Specification