SUBSTRATE PROVIDED WITH A MULTILAYER COATING HAVING THERMAL PROPERTIES, WHICH INCLUDES HIGH-REFRACTIVE-INDEX LAYERS
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Abstract
A transparent glass substrate including on a main face a thin-film multilayer coating including a metallic functional layer having reflection properties in the infrared and/or in solar radiation, for example based on silver or a metal alloy containing silver, and two antireflection films. The films each include at least two dielectric layers, the functional layer being placed between the two antireflection films. Each antireflection film includes at least one high-refractive-index dielectric layer located in contact with or close to the functional layer.
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Citations
24 Claims
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1-12. -12. (canceled)
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13. A transparent substrate comprising, on a main face:
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a thin-film multilayer coating comprising a metallic functional layer having reflection properties in infrared and/or in solar radiation, or based on silver or a metal alloy containing silver, and two antireflection films, the antireflection films each comprising at least two dielectric layers, the functional layer being placed between the two antireflection films, the functional layer being optionally deposited directly on an underblocker film placed between the subjacent antireflection film and the functional layer and the functional layer being optionally deposited directly beneath an overblocker film placed between the functional layer and the superjacent antireflection film, wherein each antireflection film includes at least one high-refractive-index dielectric layer located in contact with or close to the functional layer and a total optical thickness e2 of the high-refractive-index dielectric layer or of all of the high-refractive-index dielectric layers which is or are located in the subjacent antireflection film represents between 30 and 75% of the total optical thickness e20 of this subjacent antireflection film, and the total optical thickness e6 of the high-refractive-index dielectric layer or of all of the high-refractive-index dielectric layers which is or are located in the superjacent antireflection film represents between 10 and 60% of the total optical thickness e60 of this superjacent antireflection film. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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Specification