Coated ophthalmic lenses and method for coating the same
US4758448A · kind A · utility
94Cited by
9References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 31, 1985 |
| Grant date | Jul 19, 1988 |
| Priority date | — |
| Expiry date | May 31, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31935
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An ophthalmic lens and a method for providing a thin coating thereon is disclosed. The coatings render the surfaces of the devices resistant to abrasion and have an SEB abrasion resistance to at least 20 psi. They are optically clear, aberration-free, and provide essentially exactly an optical surface having the desired surface configuration. The coating compositions employed contain reactive ethylenically unsaturated groups and are applied to a mold face and partially reacted. The coated mold is then used to cast the ophthalmic device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.