Quantitative tinting
US5770259A · kind A · utility
6Cited by
9References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 10, 1994 |
| Grant date | Jun 23, 1998 |
| Priority date | — |
| Expiry date | Nov 10, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02C7/021
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Plastic lenses are provided wherein a tinting agent is provided within the coating to impart color to the lens. Methods are provided whereby such coatings can be applied to plastic lenses using radiation or thermal curing techniques with a plastic coating.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.