Optical glare protection filter
US10429680B2 · kind B2 · utility
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11Claims
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Key dates
| Filing date | Nov 29, 2017 |
| Grant date | Oct 1, 2019 |
| Priority date | — |
| Expiry date | Nov 29, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B7/006
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An optical glare protection filter for a glare protection device includes at least one liquid-crystal cell with at least one liquid-crystal layer and at least one first electrode layer for orienting crystal molecules of the at least one liquid-crystal layer, and with at least one first contact element for electrically contacting the at least one first electrode layer. The optical glare protection filter may also include at least one second contact element for electrically contacting the at least one first electrode layer, which is substantially spaced apart from the first contact element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.