Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
43 words
A transparent article, comprising in order: a transparent base; a first transparent dereflecting layer; a transparent metallic layer; a titanium dioxide layer; a second dereflecting layer having an index of refraction intermediate between a top layer and 2.7; and a top protective layer.
Claim 2
Dependent Claim
43 words
A transparent article, comprising in order: a transparent base; a first transparent dereflecting layer; a transparent metallic layer; a titanium dioxide layer; a second dereflecting layer having an index of refraction intermediate between a top layer and 2.7; and a top protective layer.
Claim 3
Dependent Claim
23 words
A transparent article according to claim 1, wherein the metallic layer is selected from the group consisting of silver, copper, aluminum and gold.
Claim 4
Dependent Claim
48 words
A transparent article according to claim 1 or claim 2, wherein the material of the first dereflecting layer and the material of the second dereflecting layer are each selected from the group consisting of zinc oxide, bismuth oxide, indium oxide, silicon monoxide, tin oxide, and mixed indium-tin oxide.
Claim 5
Dependent Claim
28 words
A transparent article according to any one of the preceding claims, wherein the metallic layer is silver having a thickness in the range of 15 to 20 nm.
Claim 6
Dependent Claim
40 words
A transparent article according to any one of the preceding claims, further including a sacrificial metal oxide layer adjacent the metallic layer and the sacrificial metal is selected from the group consisting of titanium, aluminum, zinc, bismuth, indium and tin.
Claim 7
Dependent Claim
31 words
A transparent article according to any one of the preceding claims, wherein the two dereflecting layers are of zince oxide, each having a thickness in the range 30 to 60 nm.
Claim 8
Dependent Claim
42 words
A transparent article according to any one of the preceding claims, wherein the base comprises a layer of glass, and the top comprises a layer of glass and a layer of plastic between the second dereflecting layer and the top glass layer.
Claim 9
Dependent Claim
23 words
A transparent article according to any one of the preceding claims, wherein the resistivity of the coated layers is less than 5 ohms/square.
Claim 10
Dependent Claim
30 words
A transparent article according to any one of the preceding claims, wherein the article has a transmittance for visible radiation is at least 72% and a emissivity less than 0.1.
Claim 11
Dependent Claim
25 words
A transparent article according to any one of the preceding claims, wherein the base includes an electrode for making electrical contact with the coated layers.
Claim 12
Dependent Claim
83 words
A process for making a transparent article according to any one of the preceding claims, comprising: depositing a first dereflecting layer on a transparent base by reactive sputtering of a metal; depositing a transparent metal layer by sputtering a metal selected from the group consisting of silver, copper, aluminum and gold; depositing a layer of titanium dioxide adjacent the metal layer by sputtering; depositing a second dereflecting layer by reactive sputtering of a metal; covering the sputtered layers with a top protective layer.
Claim 13
Dependent Claim
23 words
A process according to Claim 11, wherein the reactively sputtered metals are selected from the group consisting of zinc, bismuth, indium and tin.
Claim 14
Dependent Claim
47 words
A process according to claim 11 or claim 12 wherein the metal layer is silver, and further including the step of depositing on the silver layer a sacrificial metal layer by sputtering a metal selected from the group consisting of titanium, aluminum, zinc, bismuth, indium, and tin.
Claim 15
Dependent Claim
61 words
A process according to any one of claims 11 to 13, wherein: the first dereflecting layer is deposited on a first pass through a sputter coating system; the silver and the sacrificial metal layers are deposited on a second pass through a sputter coating system; and the second dereflecting layer is deposited on a third pass through the sputter coating system.