Colored contact lens and method of making same
US6655804B2 · kind B2 · utility
28Cited by
60References
11Claims
0Family size
Inventor
Key dates
| Filing date | Aug 21, 2001 |
| Grant date | Dec 2, 2003 |
| Priority date | — |
| Expiry date | Feb 12, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02C7/046
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method for coloring contact lenses comprises storing a generally annular-shaped initial iris image in a computer. The initial iris image comprises a plurality of color elements. The method further comprises applying a filtering process to the initial iris image in a manner to replace at least portions of at least some of the color elements with generally uncolored regions to form a filtered iris image, and using a printer apparatus, in communication with the computer, in a manner to print the filtered iris image on a contact lens substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.