Facilitation of contact lenses with capacitive sensors
US8857981B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 26, 2012 |
| Grant date | Oct 14, 2014 |
| Priority date | — |
| Expiry date | Oct 17, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02C7/049
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Apparatus, systems and methods employing contact lens with capacitive sensors are provided. In some aspects, a contact lens includes: a substrate; a capacitive sensor, disposed on or within the substrate, that senses a capacitance on the contact lens; and a circuit disposed on or within the substrate. In some aspects, the circuit can include a capacitance analysis component that determines a condition of an eyelid associated with the eye over which the contact lens is disposed and/or a parameter associated with the eye over which the contact lens is disposed. In some aspects, the condition can be a blink of an eyelid. In some aspects, the parameter can be at least one of a pressure of an object in proximity to the contact lens, a thickness or type of a layer of material disposed on or within the contact lens or a composition of material on the contact lens.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.