Multi-pupil display and eye-tracking with interferometric sensing
US11988828B1 · kind B1 · utility
0Cited by
6References
20Claims
0Family size
Assignee
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Key dates
| Filing date | Nov 16, 2022 |
| Grant date | May 21, 2024 |
| Priority date | — |
| Expiry date | Dec 17, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2027/0187
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An eye-tracking system may include a light source to emit infrared (IR) light. A waveguide may include an input coupler. A scanner may be to direct the infrared (IR) light to the input coupler, which may be configured to direct the infrared (IR) light to exit the waveguide toward an eyebox region for eye-tracking. The scanner may be to direct visible light to the input coupler. The input coupler may be to direct the visible light toward the eyebox region for display as a virtual image. A sensor may be to generate an imaging signal when infrared (IR) light impinges upon the sensor via the scanner and the input coupler.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.