High efficiency polarizing lens with color enhancement
US12276871B2 · kind B2 · utility
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12Claims
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Key dates
| Filing date | Sep 15, 2021 |
| Grant date | Apr 15, 2025 |
| Priority date | — |
| Expiry date | Dec 29, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02C2202/16
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A light filtering element, includes: at least one layer, a first layer of the at least one layer being stretched along a strain direction and including a first narrowband dye, the first narrowband dye including a first narrowband dye peak absorbance wavelength with a first narrowband dye bandwidth; and a first dichroic dye configured to absorb polarized light, the first dichroic dye including a first dichroic dye peak absorbance wavelength with a first dichroic dye bandwidth, molecules of the first dichroic dye being at least partially oriented along the strain direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.