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US 9,836,122 B2Granted
Eye glint imaging in see-through computer display systems
AssigneeOsterhout Group, Inc.
InventorJohn N. Border
Life of this patent
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Abstract
Disclosure herein concerns a method that includes illuminating a user's eye with an illumination source in a head-worn display, capturing an image of the user's eye with an eye camera in the head-worn display, wherein the image includes an eye glint produced by light from the illumination source that is reflected from a surface of the user's eye, determining a size of an eye glint in the captured image, and identifying a change in focus distance for the user's eye in correspondence with a change in the size of the eye glint.
Claims7
A method, comprising:
- a. illuminating a user's eye with an illumination source in a head-worn display;
- b. capturing an image of the user's eye with an eye camera in the head-worn display, wherein the image includes an eye glint produced by light from the illumination source that is reflected from a surface of the user's eye;
- c. determining a size of an eye glint in the captured image;
- and
- d. identifying a change in focus distance for the user's eye in correspondence with a change in the size of the eye glint.
2 more elements
Dependencies are inferred from the claim text.