Patent ID: 6632491
Filing Date: 2003-10-14
Classification: C03C,E06B

Abstract:
An IG window unit comprising:a first glass substrate supporting a solar management multi-layer coating; a second glass substrate spaced apart from the first glass substrate, the second glass substrate supporting a UV blocking coating including at least one layer; wherein the solar management coating supported by the first glass substrate comprises first and second IR blocking layers each comprising Ag, at least one dielectric layer provided between the first IR blocking layer and the first substrate, at least another dielectric layer provided between the first and second IR blocking layers, and wherein the solar management coating supported by the first substrate has an emissivity (En) of no greater than 0.10 and/or a sheet resistance (Rs) of no greater than 8 ohms/square; wherein the UV blocking coating supported by the second substrate blocks at least 50% of UV radiation from 300 to 380 nm; and wherein the IG window unit has a visible transmission of at least about 60%, and blocks at least about 80% of UV radiation from 300-380 nm.