Opthalmic mold coatings
US5667735A · kind A · utility
55Cited by
13References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 16, 1996 |
| Grant date | Sep 16, 1997 |
| Priority date | — |
| Expiry date | Apr 16, 2016 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29D11/00432
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method is provided for applying a coating to an ophthalmic device by applying a coating to a face of the mold used to make the device and partially curing the coating, or, if the viscosity is sufficiently high, leaving the coating uncured. Then the liquid used to form the lens is poured into the mold and the liquid and coating are concurrently cured.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.