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US 12,601,920 B2Granted
Color correction for virtual images of near-eye displays
AssigneeVuzix Corporation
InventorsRobert J. Schultz, Paul J. Travers
Life of this patent
Estimating the term…
Abstract
A near-eye display for conveying virtual images within a real-world view includes a projector having an illuminator with an extended light source including a plurality of cells, each containing light sources, and a partial homogenizer for partially overlapping light from the plurality of cells at an illumination plane of a spatial light modulator. A controller adjusts the outputs of the plurality of cells to alter a distribution of the light over the illumination plane.
Claims20
A projector for a near-eye display, comprising:
- an extended light source having a plurality of cells each containing light sources that are adjustable to vary a relative output of individual cells;
- a partial homogenizer configured to collect light from the plurality of cells within a plurality of optical channels and partially overlapping the light from the plurality of optical channels at an illumination plane;
- a spatial light modulator located at the illumination plane configured to generate real images by selectively modulating the partially overlapping light at the illumination plane;
- an eyepiece optic configured to direct the modulated light from the spatial light modulator toward a pupil to convey virtual images of the generated real images to a viewer;
- and
- a controller connected to the extended light source, wherein the controller is operable to adjust the relative output of one or more of the plurality of cells to alter a distribution of the light over the illumination plane incident to the spatial light modulator.
3 more elements
A near-eye display comprising:
- an illuminator including an extended light source having a plurality of cells each comprising a plurality of light sources and a partial homogenizer configured to partially overlap light from the plurality of cells at an illumination plane;
- a spatial light modulator located at the illumination plane configured to generate real images by selectively modulating the partially overlapping light at the illumination plane;
- an eyepiece optic configured to direct the modulated light from the spatial light modulator toward a pupil as a plurality of angularly encoded light beams;
- an image light guide comprising a transmissive waveguide, an in-coupling optic arranged along the waveguide, wherein the in-coupling optic is operable to direct at least a portion of the angularly encoded light beams into the waveguide, and an out-coupling optic arranged along the waveguide, wherein the out-coupling optic is operable to direct at least a portion of the angularly encoded light beams out of the waveguide to an eyebox;
- and
- a controller connected to the extended light source, wherein the controller is operable to adjust a relative output of one or more of the plurality of cells to change a light intensity distribution over the illumination plane incident to the spatial light modulator.
3 more elements
A projector for a near-eye display, comprising:
- an extended light source having a plurality of light sources that are adjustable to vary a relative output of light;
- a partial homogenizer configured to collect light from the plurality of light sources within a plurality of optical channels and partially overlapping the light from the plurality of optical channels at an illumination plane;
- a spatial light modulator located at the illumination plane configured to generate real images by selectively modulating the partially overlapping light at the illumination plane;
- an eyepiece optic configured to direct the modulated light from the spatial light modulator toward a pupil as a plurality of angularly encoded light beams;
- and
- a controller connected to the extended light source, wherein the controller is operable to adjust the relative output of one or more of the plurality of light sources to alter a distribution of the light over the illumination plane incident to the spatial light modulator.
3 more elements
Dependencies are inferred from the claim text.