Active system of vision and associated method for improving visual comfort to a wearer
US9146406B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 2, 2014 |
| Grant date | Sep 29, 2015 |
| Priority date | — |
| Expiry date | Apr 2, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02C7/101
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Ophthalmic lens comprising: a primary zone on a first face; a secondary zone on the first face between said primary zone and the peripheral edge of the lens; first and second regions forming a partition of the secondary zone, which are contiguous and alternate with a pitch. A spectacle eyeglass obtained from said lens produces a first ophthalmic correction in the primary zone and in the first regions, and a second ophthalmic correction in the second regions different from said first ophthalmic correction. An active system of vision comprises an occultation device comprising: a selection device for selecting the wearer's viewing state; an optical occultation system to occult alternatively a first group and a second group according to the wearer's viewing state selected by the selection device, the first group comprising at least the primary zone and the first regions, and the second group comprising at least the second regions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.