Multi-tint coloured ophtalmic lenses
US8096656B2 · kind B2 · utility
3Cited by
6References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 15, 2007 |
| Grant date | Jan 17, 2012 |
| Priority date | — |
| Expiry date | Nov 15, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02C7/105
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The invention relates to an ophtalmic lens comprising, on its surface, a first central zone preferentially transmitting the long wavelengths of the visible spectrum, and a second peripheral zone preferentially transmitting the short wavelengths of the visible spectrum.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.