Spectacle lens device comprising an electrically adaptive area, spectacles, use and method for operating said spectacle lens device
US7600872B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 7, 2005 |
| Grant date | Oct 13, 2009 |
| Priority date | — |
| Expiry date | Oct 7, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02C7/083
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The invention relates to a spectacle lens device comprising at least one electrically adaptive area, wherein optical properties of the spectacle lens device can be controlled in an electric manner. The spectacle lens device is configured in such a manner that the optical properties of a predetermined or predeterminable control area can be controlled in an electrical manner which is essentially independent from the optical properties in a surrounding area. The invention also relates to the control area and to the surrounding area, respectively, about a partial area of the electrically adaptive area. The control area and the surrounding area do not a common area. The invention further relates to a pair of spectacles comprising a spectacle lens device, to the use of the inventive spectacle lens device and also to a method for operating an electrically adaptive area.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.