Patent ID: 11966048
Assignee: APPLE INC.
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 11:
12. A head-mounted device, comprising:
a head-mounted support structure;
a lens supported by the head-mounted support structure through which a real-world object is viewable;
a gaze tracking system having light-emitting devices that supply light beams and having light detectors comprising photodiodes in the head-mounted support structure that detect respective eye reflections of the light beams, wherein the gaze tracking system is a non-glint-based tracking system that is configured to track a gaze of an eye based on an amount of light reflected by the eye; and
a glint-based gaze tracking system that includes an infrared image sensor in the head-mounted support structure that is configured to be selectively deactivated while the photodiodes are on in a first mode, wherein the infrared image sensor is configured to be on while the light-emitting devices and the photodiodes are off in a second mode, and the glint-based gaze tracking system is configured to detect glints on the eye.