Patent ID: 6733889
Filing Date: 2004-05-11
Classification: C03C,Y10T

Abstract:
A coated glass substrate comprising:a) a glass substrate; b) a first coating deposited over the glass substrate, the first coating comprising a low emissivity layer having a thickness in the range of 1000 Ã¥ to 6000 Ã¥ and having a first refractive index in the visible spectrum; and c) a second coating deposited over the first coating, the second coating comprising a visible light reflecting layer and having a second refractive index in the visible spectrum greater than the first refractive index of the first coating; the coated glass substrate having an Rf>15%, 30%&lE;Tvis&lE;70%_and an emissivity less than or equal to about 0.3.