Method for post-injection lamination to add a functional film to an optical lens
US7820081B2 · kind B2 · utility
28Cited by
9References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 14, 2008 |
| Grant date | Oct 26, 2010 |
| Priority date | — |
| Expiry date | May 14, 2028 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2011/0016
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method for laminating a functional film on to a thermoplastic injection molded lens. A thermally curable glue is deposited on the lens while it is still in the mold. A functional film is introduced and the mold is closed again. The heat from the mold and the clamping pressure thermoform the film and cure the glue, in a lamination process. A functionally enhanced lens having a film intimately laminated on to one side.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.