Rapid, thermally cured, back side mar resistant and antireflective coating for ophthalmic lenses
US7144598B2 · kind B2 · utility
20Cited by
14References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 17, 2003 |
| Grant date | Dec 5, 2006 |
| Priority date | — |
| Expiry date | Dec 17, 2023 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03C2217/734
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Disclosed is a process to rapidly spin-apply an AR coating system to a backside of a prescription lens. The AR coating system comprises a polyurethane primer layer, a siloxane thermally cured scratch resistant coating layer, a two-layer sol-gel AR coating, and a hydrophobic layer. The process comprising steps of spin-applying each of the layers provides a quick way to furnish a prescription lens that is AR coated on both sides.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.