초록 ▼

A sputter-coated glass layer system particularly useful in insulating glass units (“IGs”), which includes dual layers of silver separated by a layer of Si3N4 having a thickness of about 700 Å-1,100 Åand further including an undercoat and an overcoat of Si3N4 having thicknesses of about 300 Å-550 Åan

A sputter-coated glass layer system particularly useful in insulating glass units (“IGs”), which includes dual layers of silver separated by a layer of Si3N4 having a thickness of about 700 Å-1,100 Åand further including an undercoat and an overcoat of Si3N4 having thicknesses of about 300 Å-550 Åand about 350 Å-700 Årespectively, such that a glass so coated achieves normal emissivity values (En\s) of less than about 0.02-0.09 with good durability and very low reflectance.

대표청구항 ▼

A sputter-coated glass article comprised of a glass substrate having thereon from the glass outwardly, a layer system including: a) a layer of Si3N4 having a thickness of about 300 Å-500 Å; b) a layer of nickel or nichrome having a thickness of about 7 Åor less; c) a layer of silver having a thickn

A sputter-coated glass article comprised of a glass substrate having thereon from the glass outwardly, a layer system including: a) a layer of Si3N4 having a thickness of about 300 Å-500 Å; b) a layer of nickel or nichrome having a thickness of about 7 Åor less; c) a layer of silver having a thickness of about 70 Å-130 Å; d) a layer of nickel or nichrome having a thickness of about 7 Åor less; and e) a layer of Si3N4 having a thickness of about 700 Å-1,100 Å; f) a layer of nickel or nichrome having a thickness of about 7 Åor less; g) a layer of silver having a thickness of about 70 Å-190 Å, wherein said layer (g) is thicker than said layer (c); h) a layer of nickel or nichrome having a thickness of about 7 Åor less; and i) a layer of Si3N4 having a thickness of about 350 Å-700 Å; wherein when said glass substrate has a thickness of about 2 mm-6 mm, said coated glass substrate has a visible transmittance of about 70% or greater, a normal emissivity (En) of about 0.02 -0.09, a hemispherical emissivity (Eh) of about 0.03-0.12, a sheet resistance (Rs) of about 2-10 ohms/sq.and having the following reflectance and color coordinates wherein the glass side characteristics are: RGY, less than about 10 ah is about -3 to +5 bh is about 0 to -10 and wherein the film side characteristics are: RFY, less than about 10 ah is about -3 to +5 bh is about 0 to -10 wherein RY is the reflectance and ah, bh are the color coordinates as measured in Hunter units, Ill., C, 10°observer.