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LOW SOLAR ABSORBING BLUE GLASS, SOLAR REFLECTING COATED BLUE GLASS, AND INSULATING UNIT HAVING A LOW SOLAR HEAT GAIN
LOW SOLAR ABSORBING BLUE GLASS, SOLAR REFLECTING COATED BLUE GLASS, AND INSULATING UNIT HAVING A LOW SOLAR HEAT GAIN
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机译:低太阳能吸收式蓝色玻璃,太阳能反射镀膜蓝色玻璃以及具有低太阳能热增益的绝缘装置
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摘要
An insulating unit having a neutral grey color and a solar heat gain coefficient less than 0.40 includes a clear glass sheet spaced from a coated glass sheet. The coated glass sheet includes a colored glass substrate having a solar infrared reflective coating. The composition of the coated substrate includes a base glass portion and a glass colorant portion, the glass colorant portion including total iron in the range of 0.04 to less than 0.28 weight percent; CoO in the range of 32 to 90 parts per million, and Se in the range of greater than 0 to less than 5.5 parts per million. In one non-limiting embodiment of the invention the glass substrate at a thickness of 0.223 inches has a* chromaticity coordinates of −3.5 to +2.5 and b* chromaticity coordinates of −1 to −15, and a visible light transmittance of 40 to 80%.
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