Eye movement tracking device and eye movement tracking method
US12429699B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 10, 2022 |
| Grant date | Sep 30, 2025 |
| Priority date | — |
| Expiry date | Jan 10, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2027/0187
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An eye movement tracking device includes: a light source located at the light-emitting side of the display module and configured for providing a first light ray for irradiating an eye; a plurality of photoelectric sensing elements arranged in a non-display region of the display module and configured for receiving a second light ray to determine a position of a pupil of the eye; an optical structure located between the optical lens and the display module, including a plurality of optical transparent areas in one-to-one correspondence to the plurality of photoelectric sensing elements, each of the optical transparent areas being configured for transmitting the second light ray to a corresponding photoelectric sensing element; the second light ray being a light ray which passes through a center point of the optical lens after the first light ray is reflected back by the eye. An eye movement tracking method is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.