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'Smart' Glass Blocks Heat, Not Light

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LONDON, Aug. 11 -- Researchers have developed an 'intelligent' window coating that, when applied to the glass of buildings or cars, reflects the sun’s heat so occupants don’t get too hot under the collar. Although conventional tints block both heat and light, the coating -- which is made from a derivative of vanadium dioxide -- allows visible wavelengths of light through at all times but reflects infrared light when the temperature rises over 29 °C. Wavelengths of light in this region of the spectrum cause heating, so blocking infrared reduces unwanted rays from the sun. Soaring air...Read full article

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    Published: August 2004
    Basic Scienceindustrialintelligent window coatingNews & Featuressmart glassUCLUniversity College Londonvanadium dioxide

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