Two-dimensional exit-pupil expansion
First Claim
1. A near-eye display system comprising:
- an image former configured to form a display image and to release the display image through an exit pupil;
a first series of mutually parallel beamsplitters arranged to receive the display image from the image former; and
a second series of mutually parallel beamsplitters arranged to receive the display image from the first series of beamsplitters, and to release the display image through an exit pupil longer and wider than that of the image former, the second series of beamsplitters having a different structure, a different alignment, and a different orientation than the first series of beamsplitters.
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Accused Products
Abstract
A near-eye display system includes an image former and first and second series of mutually parallel beamsplitters. The image former is configured to form a display image and to release the display image through an exit pupil. The first series of mutually parallel beamsplitters is arranged to receive the display image from the image former. The second series of mutually parallel beamsplitters is arranged to receive the display image from the first series of beamsplitters, and to release the display image through an exit pupil longer and wider than that of the image former. The second series of beamsplitters has a different alignment and a different orientation than the first series of beamsplitters.
166 Citations
20 Claims
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1. A near-eye display system comprising:
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an image former configured to form a display image and to release the display image through an exit pupil; a first series of mutually parallel beamsplitters arranged to receive the display image from the image former; and a second series of mutually parallel beamsplitters arranged to receive the display image from the first series of beamsplitters, and to release the display image through an exit pupil longer and wider than that of the image former, the second series of beamsplitters having a different structure, a different alignment, and a different orientation than the first series of beamsplitters. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A near-eye display system comprising:
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an image former configured to form a display image and to release the display image through an exit pupil; a lens configured to receive the display image from the image former and to collimate the display image; a first series of mutually parallel beamsplitters arranged to receive the display image from the lens; and a second series of partially reflective, mutually parallel beamsplitters arranged to receive the display image from the first series of beamsplitters, and to release the display image through an exit pupil longer and wider than that of the image former, the second series of beamsplitters having a different alignment and a different orientation than the first series of beamsplitters. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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19. A near-eye display system comprising:
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an image former configured to form a display image and to release the display image through an exit pupil; a first series of partially diffractive, mutually parallel beamsplitters aligned along a first axis and arranged to receive the display image from the image former; and a second series of partially reflective, mutually parallel beamsplitters aligned along a second axis, orthogonal to the first axis, and arranged to receive the display image from the first series of beamsplitters and to release the display image through an exit pupil longer and wider than that of the image former, the second series of beamsplitters having a different alignment and a different orientation than the first series of beamsplitters and being at least partially transparent to imagery external to the near-eye display system; a controller configured to provide control signals to the image former to cause the display image to be formed; and a wearable mount configured to support the image former and the controller, and to hold the first and second series of beamsplitters directly in front of a wearer'"'"'s eye. - View Dependent Claims (20)
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Specification