Dynamic illumination for eye-tracking
US11902501B2 · kind B2 · utility
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1References
20Claims
0Family size
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Key dates
| Filing date | Sep 15, 2022 |
| Grant date | Feb 13, 2024 |
| Priority date | — |
| Expiry date | Sep 15, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2027/0134
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An apparatus includes a controller coupled to a stereoscopic image viewer. The stereoscopic image viewer includes a viewing lens, an image capture unit, and a plurality of light sources. The image capture unit is configured to capture image frames. The controller receives the captured image frames. The controller is configured to switch light output from one of the plurality of light sources to another one of the plurality of light sources if a corneal reflection in a captured image frame intersects a fixed reflection in the captured image frame.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.