HEAD-MOUNTED LIGHT-FIELD DISPLAY
First Claim
1. A light-field projector (LFP) device comprising:
- a solid-state LED array (SLEA) comprising a plurality of light-emitting diodes (LEDs);
a microlens array (MLA) placed at a separation distance from the SLEA, the MLA comprising a plurality of microlenses; and
a processor communicatively coupled to the SLEA and adapted to;
identify a target pixel for rendering on the retina of a human eye,determine at least one LED from among the plurality of LEDs for displaying the pixel,move the at least one LED to a best-fit pixel location relative to the MLA and corresponding to the target pixel, andcause the LED to emit a primary beam of a specific intensity for a specific duration.
3 Assignments
0 Petitions
Accused Products
Abstract
A head-mounted light-field display system (HMD) includes two light-field projectors (LFPs), one per eye, each comprising a solid-state LED emitter array (SLEA) operatively coupled to a microlens array (MLA). The SLEA and the MLA are positioned so that light emitted from an LED of the SLEA reaches the eye through at most one microlens from the MLA. The HMD'"'"'s LFP comprises a moveable solid-state LED emitter array coupled to a microlens array for close placement in front of an eye—without the need for any additional relay or coupling optics—wherein the LED emitter array physically moves with respect to the microlens array to mechanically multiplex the LED emitters to achieve resolution via mechanically multiplexing.
181 Citations
20 Claims
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1. A light-field projector (LFP) device comprising:
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a solid-state LED array (SLEA) comprising a plurality of light-emitting diodes (LEDs); a microlens array (MLA) placed at a separation distance from the SLEA, the MLA comprising a plurality of microlenses; and a processor communicatively coupled to the SLEA and adapted to; identify a target pixel for rendering on the retina of a human eye, determine at least one LED from among the plurality of LEDs for displaying the pixel, move the at least one LED to a best-fit pixel location relative to the MLA and corresponding to the target pixel, and cause the LED to emit a primary beam of a specific intensity for a specific duration. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method for mechanically multiplexing a plurality of LEDs in a light-field projector (LFP) comprising a solid-state LED array (SLEA) having a plurality of light-emitting diodes (LEDs) and a microlens array (MLA) having a plurality of microlenses placed at a separation distance from the SLEA, the method comprising:
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arranging a plurality of LEDs to achieve overlapping orbits; identifying a best-fit pixel for each target pixel; orbiting the LEDs; and emitting a primary beam to at least partially render a pixel on a retina of an eye of a user when an LED is located at a best-fit pixel location for a target pixel that is to be rendered. - View Dependent Claims (14, 15, 16, 17)
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18. A computer-readable medium comprising computer-readable instructions for a light-field projector (LFP) comprising a solid-state LED array (SLEA) having a plurality of light-emitting diodes (LEDs) and a microlens array (MLA) having a plurality of microlenses placed at a separation distance from the SLEA, the computer-readable instructions comprising instructions that cause a processor to:
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identify a plurality of target pixel for rendering on the retina of a human eye, calculate the subset of LEDs from among the plurality of LEDs to be used for displaying the pixel, mechanically multiplex the plurality of LEDs, and cause the plurality of LED to emit a primary beam of a specific intensity for a specific duration in accordance with best-fit pixel location relative to the MLA and corresponding to the target pixel. - View Dependent Claims (19, 20)
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Specification