Glazing
First Claim
1. A glazing, comprising:
- a transparent substratea plurality of electrically conductive filaments, extending over the transparent substratewherein the filaments are shaped into a sequence of portions of the perimeters of ellipseswherein in that;
ellipse axial ratios of the ellipses are in the range 1.1 to 4.0 and ellipse axial ratios of the ellipses are selected so that, from a pre-defined viewing position and in corresponding pre-defined viewing directions, the ellipses in the plane of the substrate are observed as circles.
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Accused Products
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.
4 Citations
18 Claims
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1. A glazing, comprising:
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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 in that; ellipse axial ratios of the ellipses are in the range 1.1 to 4.0 and ellipse axial ratios of the ellipses are selected so that, from a pre-defined viewing position and in corresponding pre-defined viewing directions, the ellipses in the plane of the substrate are observed as circles. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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Specification