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US 11,163,176 B2Granted
Light field vision-correction device
AssigneeLight Field Lab, Inc.
InventorsJonathan Sean Karafin, Brendan Elwood Bevensee
Life of this patent
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Abstract
Devices utilizing holographic 4D plenoptic capture and display technologies to generate a light field function to provide glasses-less vision correction for observers with imperfect vision, and to project an image according to the generated light field function, and methods for calibrating a four-dimensional light field for a user with an uncorrected visual acuity.
Claims8
A device for vision correction, the device comprising:
- a light-source system configured to provide light to a plurality of light locations and comprising a plurality of light sources;
- a light-directing system comprising;
- an array of waveguides configured to direct light emitted by the plurality of light sources along a plurality of propagation paths wherein each propagation path extends through one of the plurality of light locations;
- and
- wherein a first waveguide of the array of waveguides is configured to direct light from a first light location through the first waveguide along a first propagation path of the plurality of propagation paths wherein the first propagation path extends from the first waveguide in a unique direction determined at least by the first light location;
- and
- a control system configured to operate the plurality of light sources to direct light through the light-directing system to project a first holographic object along the plurality of propagation paths according to a four-dimensional (“4D”) light field function that has been determined to account for an uncorrected visual acuity of a first user, whereby the first holographic object is perceivable by the first user with a first corrected visual acuity without corrective eyewear configured according to a corrective prescriptive function that would correct the uncorrected visual acuity of the first user.
4 more elements
Dependencies are inferred from the claim text.