Colored contact lenses and method of making same
US6284161A · kind A · utility
43Cited by
36References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 26, 1993 |
| Grant date | Sep 4, 2001 |
| Priority date | — |
| Expiry date | Oct 26, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02C7/108
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Optical lenses and methods of preparing the same, in which an active material encapsulated in resin capsules is impregnated in said lens, adjacent an optical surface thereof. The active material may be a coloring material for producing a printed color pattern in the iris or other areas of the lens, or it may be a therapeutic agent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.