Contact lens design
US6099121A · kind A · utility
40Cited by
4References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 7, 1996 |
| Grant date | Aug 8, 2000 |
| Priority date | — |
| Expiry date | Jun 7, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02C7/04
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A contact lens includes an anterior surface and a posterior surface where the posterior surface includes a central zone and a peripheral zone, where the radius of curvature of the central zone is at least 0.4 mm, and preferably at least 0.6 mm, greater than the radius of curvature of the peripheral zone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.