Patent ID: 11924536
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 14:
15. A computer program product comprising a computer-readable storage medium, the computer-readable storage medium comprising instructions readable by an augmented reality device to perform:
emitting infrared (IR) light, by using an IR light source of an eye tracking sensor, to an eye of a user;
obtaining, by an IR camera of the eye tracking sensor, an image by photographing the IR light reflected by the eye of the user;
detecting a plurality of glint feature points from the image obtained by the IR camera;
determining eye relief, which is a distance between the eye of the user and a variable focus lens of the augmented reality device, based on a distance between the plurality of detected glint feature points;
obtaining information with respect to a gaze point at which gaze direction of a left eye of the user and gaze direction of a right eye of the user converge, and an interpupillary distance which is a distance between a pupil of the left eye and a pupil of the right eye of the user, based on the plurality of glint feature points; and
determining a position of a focal region of the variable focus lens based on the information about the eye relief, the gaze point, and the interpupillary distance.