Solar control glazing
AssigneesPilkington Group Limited, Pilkington Automotive Limited
InventorsNeil Barton, Ashley Carl Torr
Life of this patent
Estimating the term…
Abstract
A vehicle glazing comprises a pane of glazing material, an absorptive coating, which absorbs radiation of wavelength greater than 400 nm (and possibly up to 100 μm), on a first surface of the pane, and a low emissivity coating on the first surface, or a second surface, of the pane. The glazing may be used as a roof glazing. The absorptive coating may comprise either a) a metal, metal alloy or material based on a metal alloy, or b) at least one layer of a dielectric material and at least one layer of a metal or metal alloy. The low emissivity coating may comprise either a) a transparent conductive oxide (and optionally a dopant material), or b) at least one metal layer and at least one dielectric layer.
Claims25
A vehicle glazing configured to be mounted on a vehicle having a vehicle interior, the vehicle glazing comprising only a single pane of glazing material possessing an inner surface adapted to face the vehicle interior and an outer surface adapted to face away from the vehicle interior, an absorptive coating, which absorbs radiation of wavelength greater than 400 nm, on the outer surface of the pane, and a low emissivity coating on the inner surface of the pane, and the vehicle glazing has a visible light transmission of 15% or less and a transmitted energy of 20% or less.
A laminated glazing, for use in a vehicle having a vehicle interior, the glazing possessing an interior surface adapted to face the vehicle interior, the glazing comprising two plies of glazing material with a sheet of interlayer formed of transparent plastic laminated therebetween, an absorptive coating, which absorbs radiation of wavelength greater than 400 nm, on a surface of one of the plies of glazing material, and only a single low emissivity coating, the single low emissivity coating on the interior surface of the glazing, and the laminated glazing has a visible light transmission of 15% or less and a transmitted energy of 20% or less.
A vehicle roof glazing configured to be mounted on a vehicle having a vehicle interior, the vehicle roof glazing comprising no more than one pane of glazing material, the one pane of glazing material possessing an inner surface adapted to face the vehicle interior and an outer surface adapted to face away from the vehicle interior, an absorptive coating, which absorbs radiation of wavelength greater than 400 nm, on the outer surface of the one pane, and only a single low emissivity coating, the single low emissivity coating being on the inner surface of the glazing, the vehicle roof glazing having a visible light transmission of 15% or less and a transmitted energy of 20% or less.
Dependencies are inferred from the claim text.