Color-balanced lenses exhibiting reduced blue light transmittance
US12019316B2 · kind B2 · utility
0Cited by
3References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 11, 2019 |
| Grant date | Jun 25, 2024 |
| Priority date | — |
| Expiry date | Aug 17, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02C2202/16
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The object of this invention is to provide optical articles having one or more transmittance-attenuating dyes. Each dye attenuates transmission of a certain wavelength range. Different dyes can be combined in different concentrations to tune the transmittance spectrum through a lens. The transmittance-attenuating dyes can be incorporated into different optical articles using different production methods.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.