Lens with color enhancement
US12007628B2 · kind B2 · utility
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3Claims
0Family size
Assignee
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Key dates
| Filing date | Jun 11, 2019 |
| Grant date | Jun 11, 2024 |
| Priority date | — |
| Expiry date | Jan 15, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02C2202/16
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Embodiments of the disclosure relate to the use of dyes that impart localized regions of reduced transmittance across specific wavelength ranges. The inclusion of transmittance-attenuating dyes into a lens provides enhanced color contrast by tuning the spectrum of visible light transmission through the lens.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.