REFLECTIVE ARTICLE HAVING MULTIPLE REFLECTIVE COATINGS
First Claim
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1. A reflective article, comprising:
- a transparent substrate having a first major surface and a second major surface;
a secondary reflective coating formed over at least a portion of the second major surface and comprising one or more dielectric layers;
a primary reflective coating formed over at least a portion of the secondary reflective coating and comprising at least one metallic layer; and
a protective coating formed over at least a portion of the primary reflective coating.
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Abstract
A reflective article, such as a solar mirror, includes a highly transparent substrate having a first major surface and a second major surface. At least one reflective coating is formed over at least a portion of one of the surfaces, e.g., the second major surface (or, alternatively, the first major surface). The reflective coating includes at least one metallic layer. An encapsulation structure can be formed over at least a portion of the second reflective coating.
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Citations
23 Claims
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1. A reflective article, comprising:
- a transparent substrate having a first major surface and a second major surface;
a secondary reflective coating formed over at least a portion of the second major surface and comprising one or more dielectric layers; a primary reflective coating formed over at least a portion of the secondary reflective coating and comprising at least one metallic layer; and a protective coating formed over at least a portion of the primary reflective coating. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
- a transparent substrate having a first major surface and a second major surface;
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21. A reflective article, comprising:
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a transparent glass substrate having a first major surface and a second major surface; a secondary reflective coating formed over at least a portion of the second major surface, wherein the secondary reflective coating comprises a first layer comprising a material selected from metal oxides, nitrides, and oxynitrides and a second layer formed over at least a portion of the first layer and comprising a material selected from metal oxides, nitrides, and oxynitrides, and wherein the first layer has a higher refractive index than the second layer; a primary reflective coating formed over at least a portion of the secondary reflective coating, wherein the primary reflective coating comprises at least one metal selected from platinum, iridium, osmium, palladium, aluminum, gold, copper, silver, or mixtures, alloys, or combinations thereof, and wherein the primary reflective coating has a thickness in the range of 50 nm to 500 nm, and wherein the primary reflective coating is opaque to visible light; an anti-corrosion coating formed over at least a portion of the primary reflective coating, wherein the anti-corrosion coating comprises at least one metal or metal alloy from members of Groups 2-16 of the Periodic Table of the Elements and has a thickness in the range of 20 nm to 40 nm; a top coat formed over at least a portion of the anti-corrosion coating, wherein the top coat comprises at least one layer comprising a material selected from metal oxides, nitrides, oxynitrides, borides, fluorides, or carbides, and wherein the top coat has a thickness in the range of 5 nm to 500 nm; and an inorganic protective coating formed over at least a portion of the top coat, wherein the protective coating comprises a material selected from silica, alumina, or a mixture of silica and alumina and has a thickness in the range of 50 nm to 500 nm.
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22. A method of making a reflective article, comprising:
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providing a transparent glass substrate having a first major surface and a second major surface; forming a secondary reflective coating over at least a portion of the second major surface and comprising one or more dielectric layers; forming a primary reflective coating over at least a portion of the secondary reflective coating and comprising at least one metallic layer; and forming a protective coating over at least a portion of the primary reflective coating. - View Dependent Claims (23)
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Specification