Optical lens for correcting color vision
US11327342B2 · kind B2 · utility
0Cited by
7References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 19, 2018 |
| Grant date | May 10, 2022 |
| Priority date | — |
| Expiry date | Apr 8, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02C7/02
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present invention relates to optical lens for correcting color vision for individuals with color vision deficiency comprising a substrate and an absorbing dye which has at least a minimum light transmission factor at a wavelength ranging from 515 nm to 80 nm that is lower than or equal to 40% and quickly varying transmission around 500 nm and around 595 nm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.