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Infrared light reflecting plate, infrared light-reflecting laminated glass, as well as laminates and laminated glass with a cholesteric liquid crystal layer
Infrared light reflecting plate, infrared light-reflecting laminated glass, as well as laminates and laminated glass with a cholesteric liquid crystal layer
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机译：红外光反射板，红外光反射夹层玻璃以及具有胆甾型液晶层的夹层玻璃和夹层玻璃
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摘要
To provide an infrared-light reflective plate having the improved selective reflectivity characteristics. Disclosed is an infrared-light reflective plate reflecting an infrared-light of equal to or longer than 700nm comprising a substrate, and, on at least one of surfaces of the substrate, at least four light-reflective layers, X1, X2, X3 and X4, formed of a fixed cholesteric liquid crystal phase, and disposed in this order from the substrate, wherein the reflection center wavelengths of the light-reflective layers X1 and X2 are same with each other and are » 1 (nm), and the two layers reflect circularly-polarized light in opposite directions; the reflection center wavelengths of the light-reflective layers X3 and X4 are same with each other and are » 2 (nm), and the two layers reflect circularly-polarized light in opposite directions; and » 1 » 2 is satisfied.
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