Eye-mounted displays including embedded conductive coils
US11137622B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 15, 2018 |
| Grant date | Oct 5, 2021 |
| Priority date | — |
| Expiry date | Sep 1, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2027/013
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An augmented reality system can include an electronic contact lens and a power source. The source generates a time-varying magnetic field which induces a time-varying current in conductive coils embedded in the electronic contact lens. The electronic contact lens uses the induced current to harvest power or to determine the orientation of the contact lens. The embedded conductive coils are positioned such that the AR system can harvest power and estimate the orientation of the eye at a variety of contact lens orientations. The conductive coils may be embedded within the contact lens at any number of positions and orientations. The embedded coils can encircle a portion of the contact lens and can collectively form an annulus within the contact lens. The conductive coils are embedded such that for at least three conductive coils, no two of the planes defined by the at least three conductive coils are parallel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.