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US 12,517,284 B2Granted
Vehicle pane with reduced emissivity and light reflection
AssigneeSaint-Gobain Sekurit France
InventorsJan Hagen, Pauline Girard
Life of this patent
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Abstract
A vehicle pane with reduced emissivity and light reflection, includes a substrate having an exposed interior-side surface, an emissivity-reducing coating containing at least one layer based on a transparent conductive oxide (TCO) on the interior-side surface, and an anti-reflection coating based on nanoporous silicon oxide on the emissivity-reducing coating.
Claims16
A vehicle pane with reduced emissivity and light reflection, comprising:
- a substrate having an exposed interior-side surface,
- an emissivity-reducing coating containing at least one layer based on a transparent conductive oxide (TCO) on the interior-side surface and an upper anti-reflection layer with a refractive index of at most 1.8, and
- an anti-reflection coating consisting of nanoporous silicon oxide or nanoporous silicon oxide doped with aluminium, zirconium, titanium, boron, tin, or zinc on the emissivity-reducing coating such that the upper anti-reflection layer with a refractive index of at most 1.8 of the emissivity-reducing coating is arranged between the transparent conductive oxide (TCO) and the anti-reflection coating, the anti-reflection coating being in direct contact with the upper anti-reflection layer,
- wherein the anti-reflection coating has pores with a size from 1 nm to 500 nm,
- wherein the anti-reflection coating has a refractive index from 1.2 to 1.4 and a thickness from 50 nm to 150 nm, and
- wherein the upper anti-reflection layer comprises at least one of silicon oxide, doped silicon oxide, aluminum oxide, magnesium fluoride and calcium fluoride.
3 more elements
A method for producing a vehicle pane with reduced emissivity and light reflection, comprising:
- providing a substrate having an exposed interior-side surface;
- applying an emissivity-reducing coating, which comprises at least one layer based on a transparent conductive oxide (TCO), and an upper anti-reflection layer with a refractive index of at most 1.8, to the exposed interior-side surface of the substrate;
- and
- depositing an anti-reflection coating consisting of nanoporous silicon oxide or nanoporous silicon oxide doped with aluminium, zirconium, titanium, boron, tin, or zinc on the emissivity-reducing coating such that the upper anti-reflection layer with a refractive index of at most 1.8 of the emissivity-reducing coating is arranged between the transparent conductive oxide (TCO) and the anti-reflection coating, the anti-reflection coating being in direct contact with the upper anti-reflection layer,
- wherein the anti-reflection coating has pores with a size from 1 nm to 500 nm,
- wherein the anti-reflection coating has a refractive index from 1.2 to 1.4 and a thickness from 50 nm to 150 nm, and
- wherein the upper anti-reflection layer comprises at least one of silicon oxide, doped silicon oxide, aluminum oxide, magnesium fluoride and calcium fluoride.
4 more elements
Dependencies are inferred from the claim text.