Display system with low-latency pupil tracker
AssigneeMagic Leap, Inc.
InventorMichael Anthony KLUG
Life of this patent
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Abstract
A display system aligns the location of its exit pupil with the location of a viewer's pupil by changing the location of the portion of a light source that outputs light. The light source may include an array of pixels that output light, thereby allowing an image to be displayed on the light source. The display system includes a camera that captures image(s) of the eye and negatives of the eye image(s) are displayed by the light source. In the negative image, the dark pupil of the eye is a bright spot which, when displayed by the light source, defines the exit pupil of the display system, such that image content may be presented by modulating the light source. The location of the pupil of the eye may be tracked by capturing the images of the eye.
Claims18
A method for displaying image content through a wearable display system, the method performed by at least one processor of the wearable display system and comprising:
- accessing images of an eye of a user of the wearable display system, the images captured by an eye imaging device of the wearable display system;
- determining a negative image of the eye by inverting intensity values of at least some pixels of the images of the eye;
- emitting light to present the negative image of the eye;
- and
- displaying the image content to the user by modulating the light propagating from the negative image of the eye.
A head-mounted display system comprising:
- an eye imaging device configured to capture images of an eye of a user;
- an image inverter configured to invert intensity values of at least some pixels of the captured images of the eye to determine a negative image of the eye;
- a light source configured to emit light to present the negative image of the eye;
- and
- a spatial light modulator configured to display image content to the user by modulating the light propagating from the negative image of the eye.
One or more non-transitory computer-readable storage media storing instructions which, when executed by at least one processor, cause the at least one processor to perform operations for displaying image content through a wearable display system, the operations comprising:
- accessing images of an eye of a user of the wearable display system, the images captured by an eye imaging device of the wearable display system;
- determining a negative image of the eye by inverting intensity values of at least some pixels of the images of the eye;
- emitting light to present the negative image of the eye;
- and
- displaying the image content to the user by modulating the light propagating from the negative image of the eye.
Dependencies are inferred from the claim text.