Heat wave shielding lamination
First Claim
1. A heat wave shielding lamination comprising a visible light transparent substrate and an overlying lamination comprising two In2 O3 shield layers containing different amounts of Sn, the amount of Sn increasing with increasing proximity to the substrate, whereby the resulting heat wave shielding lamination has good transmittance for visible light and good shielding effect against rays in the infrared spectrum by virtue of the fact that the shield layers containing different amounts of Sn manifest maximum infrared absorption at different wavelengths to give high infrared ray absorptioon over a wide wavelength range.
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Accused Products
Abstract
A heat wave shielding lamination consisting of at least two In2 O3 shield layers containing different amounts of Sn is provided on the surface of a glass substrate to provide shielding against heat waves without causing heat wave pollution in the surrounding environment. The amount of tin contained in the respective layers increases with increasing proximity to the substrate. The heat wave shielding has good transmittance to visible light and good shielding effect against rays in the infrared spectrum by virtue of the fact that the shield layers containing different amounts of Sn exhibit maximum infrared absorption at different wavelengths to give high infrared ray absorption over a wide wavelength range. It also suppresses the reflection of heat waves into the surrounding environment since each shield layer of the lamination absorbs the infrared rays reflected by Drude reflection from any shield layer containing more Sn than itself.
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18 Claims
- 1. A heat wave shielding lamination comprising a visible light transparent substrate and an overlying lamination comprising two In2 O3 shield layers containing different amounts of Sn, the amount of Sn increasing with increasing proximity to the substrate, whereby the resulting heat wave shielding lamination has good transmittance for visible light and good shielding effect against rays in the infrared spectrum by virtue of the fact that the shield layers containing different amounts of Sn manifest maximum infrared absorption at different wavelengths to give high infrared ray absorptioon over a wide wavelength range.
Specification