Compact eye-tracking camera systems and methods
US11921917B2 · kind B2 · utility
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14Claims
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Key dates
| Filing date | Apr 7, 2020 |
| Grant date | Mar 5, 2024 |
| Priority date | — |
| Expiry date | Apr 7, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/55
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Systems and methods are provided for a compact eye-tracking camera assembly. The camera incorporates a lens and image sensor whose principal axis is parallel to the plane of the display surface, and a compound angle mirror configured to redirect incident IR light along the principal axis. The compound angle mirror has a first angle of approximately 45 degrees relative to a first axis, and a second angle of approximately 15-22 degrees (e.g., 18 degrees) relative to a second axis that is orthogonal to the first axis. The first and second axes are substantially parallel to the plane of the display surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.