Glazing
US9967922B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 6, 2015 |
| Grant date | May 8, 2018 |
| Priority date | — |
| Expiry date | May 16, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B2203/031
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A glazing comprising a transparent substrate, a plurality of electrically conductive filaments extending over the transparent substrate, wherein the filaments are shaped into a sequence of portions of the perimeters of ellipses, wherein ellipse axial ratios of the ellipses are in the range 1.1 to 4.0 and are selected so that from a pre-defined viewing position and in corresponding pre-defined viewing directions the ellipses in the plane of substrate are viewed as circles. In a preferred embodiment, major axis angles are selected so that from a pre-defined viewing position and in corresponding pre-defined viewing directions the ellipses in the plane of substrate are viewed as circles. In an example of a heated vehicle window, diffraction patterns caused by oncoming headlights interacting with heating filaments of a vehicle window are thereby minimized.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.