| 摘要 |
The present invention is directed to a low emissivity, low shading coefficient, low reflectance multilayer coating and coated article having a visible light transmittance of greater than about 50 %, preferably greater than about 55 %, a shading coefficient of less than about 0.33 and an exteri or reflectance of less than about 30 %. The coated article, e.g. an IG unit, ha s a substrate with a first antireflective layer deposited over the substrate. A first infrared reflective layer is deposited over the first antireflective layer and a first primer layer is deposited over the first infrared reflecti ve layer. A second antireflective layer is deposited over the first primer laye r and a second infrared reflective layer is deposited over the second antireflective layer. A second primer layer is deposited over the second infrared reflective layer and a third antireflective layer is deposited over the second primer layer, such that the coated article has a transmittance greater than about 55 %, a shading coefficient of less than about 0.33 and a reflectance of less than about 30 %. A protective overcoat, e.g. an oxide or oxynitride of titanium or silicon, and/or solvent soluble organic film forme r may be deposited over the third antireflective layer.
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