Eye tracking using self-mixing interference measurements
By using a self-mixed interferometric measurement sensor to track eye movement, the challenges of power consumption and computational cost in traditional eye monitoring technology have been solved. This enables high-precision, low-power gaze vector tracking and eye behavior classification, supporting efficient rendering in lightweight augmented reality and virtual reality systems.
CN116482854BActive Publication Date: 2026-07-21APPLE INC
View PDF 2 Cites 0 Cited by
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- APPLE INC
- Filing Date
- 2022-09-22
- Publication Date
- 2026-07-21
Smart Images
Figure CN116482854B_ABST
Abstract
The present disclosure relates to "Eye tracking using self-mixing interferometry." An eye tracking device includes a head-mounted frame, an optical sensor subsystem mounted to the head-mounted frame, and a processor. The optical sensor subsystem includes a set of one or more SMI sensors. The processor is configured to operate the optical sensor subsystem to cause the set of one or more SMI sensors to emit a set of one or more light beams toward an eye of a user; receive a set of one or more SMI signals from the set of one or more SMI sensors; and use the set of one or more SMI signals to track movement of the eye.
Need to check novelty before this filing date? Find Prior Art