Contact lens coating selection and manufacturing process
US6478423B1 · kind B1 · utility
49Cited by
42References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 16, 2000 |
| Grant date | Nov 12, 2002 |
| Priority date | — |
| Expiry date | Oct 11, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B1/043
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The invention is a method of making a coated contact lens with desirable physiological performance. Preferably, the lenses are made from hydrophobic contact lens substrate with a hydrophilic coating material. The hydrophobic lens substrate is coated with a hydrophilic material having an expansion factor greater than one. The coated lenses have low physical defect and surface roughness profiles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.