Method and apparatus for molding ophthalmic lenses
US4540532A · kind A · utility
15Cited by
10References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 2, 1984 |
| Grant date | Sep 10, 1985 |
| Priority date | — |
| Expiry date | Feb 2, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S425/808
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Finished and semi-finished ophthalmic lenses are made by polymerizing the monomer while it is sealed in an oxygen-impermeable envelope.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.