Structured light eye-tracking
US10977815B1 · kind B1 · utility
10Cited by
1References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 2, 2018 |
| Grant date | Apr 13, 2021 |
| Priority date | — |
| Expiry date | Aug 3, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/11
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method includes generating, by an illumination source, an optical beam and coupling the optical beam into an acousto-optic device. The acousto-optic device generates structured light from the coupled optical beam by diffracting the optical beam into at least two interfering optical beams. The interfering optical beams are then used to illuminate a surface of an eye of a user of a display for use in eye-tracking.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.