Filtering viewing element forming a front or rear windshield of a road vehicle
US11485200B2 · kind B2 · utility
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2References
20Claims
0Family size
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Key dates
| Filing date | Sep 20, 2017 |
| Grant date | Nov 1, 2022 |
| Priority date | — |
| Expiry date | Aug 1, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B5/3025
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A filtering vision element forming a windshield or rearview mirror of a road vehicle includes a lower region and an upper region. The filtering vision element is designed so that a difference in attenuation between two linear polarizations of an incident radiation has values that are of opposite signs in the lower and upper regions. The two linear polarizations may respectively be horizontal and contained in a vertical plane. Blinding of the driver caused by a spot of reflected light produced on a road by headlights of an external vehicle may thus be decreased or prevented.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.