Patent ID: 7887921
Filing Date: 2011-02-15
Classification: A47F,B32B,C03C,G02B,Y10T

Abstract:
1. An insulated glass unit comprising: at least first and second laminated glass units, the at least first and second laminated glass units being parallel to and separated from each other, and each having a first and a second major surface; a first coating stack deposited on the first major surface of the first laminated glass unit comprising an electrically conductive inorganic metal oxide layer and an inorganic dielectric oxide layer; a second coating stack deposited on the second major surface of the first laminated glass unit comprising an electrically conductive inorganic metal oxide layer and an inorganic dielectric oxide layer; a third coating stack deposited on the first major surface of the second laminated glass unit comprising an electrically conductive inorganic metal oxide layer and an inorganic dielectric oxide layer; and a fourth coating stack deposited on the second major surface of the second laminated glass unit comprising an electrically conductive inorganic metal oxide layer and an inorganic dielectric oxide layer; wherein each of the electrically conductive metal oxide layers of the first through fourth coating stacks have a refractive index >1.8, and each of the inorganic dielectric oxide layers of the first through fourth coating stacks have a refractive index <1.6; the first, second, third, and fourth coating stacks each having an emissivity ≧0.4 and ≦0.5, and the insulated glass unit exhibiting a visible light reflectance of <4% and a center-of-glass U value of <0.35.