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US 5,952,084 AGranted
Transparent substrate provided with a thin-film coating
AssigneeSaint-Gobain Vitrage
InventorsCharles-Edward Anderson, Jean-Paul Rousseau
Life of this patent
Estimating the term…
Abstract
The subject of the invention is a transparent substrate (1), in particular a glass substrate, including a coating (6) of one or more thin films on at least one of its faces, comprising at least one A film containing an aluminum fluoride or aluminum oxyfluoride Al.sub.x O.sub.y F.sub.z, with y.gtoreq.0.
Claims14
An article comprising:
- a transparent substrate having opposite faces;
- and
- an anti-reflection coating comprising two or more adjacent dielectric films disposed over at least one of the faces, said coating containing an alternating sequence of adjacent films having high and low refractive indices with at least one of the films having a low refractive index being positioned as an outermost layer of the coating and comprising (1) an aluminum fluoride or aluminum oxyfluoride material, wherein the aluminum material has an O/F atomic ratio of less than 10, and (2) at least one oxide component selected from the group consisting of silicon oxide, tin oxide, nickel oxide and mixtures thereof.
An article comprising:
- a transparent substrate having opposite faces;
- and
- an anti-reflection coating comprising adjacent dielectric films disposed over at least one of the faces, said coating containing an alternating sequence of adjacent films having high and low refractive indices, wherein said coating includes a plurality of films comprising a first film including a tin oxide, a second film including a silicon oxide, a third film including at least one of a niobium oxide, a tin oxide, a tungsten oxide, a bismuth oxide, or a titanium oxide, and a fourth film including an aluminum fluoride having a low refractive index being positioned as an outermost layer of the coating.
An article comprising:
- a transparent substrate having opposite faces;
- and
- an anti-reflection coating comprising two or more adjacent dielectric films disposed over at least one of the faces, said coating containing an alternating sequence of adjacent films having high and low refractive indices, wherein said coating includes a plurality of films comprising a first film including a tin oxide, a second film includes an aluminum fluoride or an aluminum oxyfluoride, a third film including at least one of a niobium oxide, a tin oxide, a tungsten oxide, a bismuth oxide, or a titanium oxide, and a fourth film including an aluminum fluoride.
Dependencies are inferred from the claim text.