Colored contact lens with a more natural appearance
US6827440B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 3, 2002 |
| Grant date | Dec 7, 2004 |
| Priority date | — |
| Expiry date | Oct 26, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02C7/046
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A colored contact lens (10) having a non-opaque pupil section (20), an iris section (22) surrounding the pupil section (20), and a colored, opaque intermittent pattern made up of a plurality of elements located over the entire iris section (22) that leaves asubstantial portion within the interstices of the pattern non-opaque, the pattern covering an effective amount of the iris section (22) to change the apparent color of the iris, the pattern having a plurality of portions, each of the portions being a different shade from each other portion, each of the portions overlapping each other portion at a plurality of points, where at least one of the plurality of portions contains a design selected from the group consisting of uniform and non-uniform dots, islands of color, worms, starbursts, corkscrews, spokes, spikes, striations, radial stripes, zig-zags and streaks, thereby providing a lens (10) capable of changing the apparent color of the iris of a person wearing the lens (10) and imparting a very natural appearance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.