LAMINATED GLASS FOR USE IN VEHICLES OR IN ARCHITECTURE
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United States of America Patent
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Issued Date -
Oct 1, 2015
app pub date -
Dec 13, 2012
filing date -
Dec 15, 2011
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The invention relates to an laminated glass for use in vehicles or in architecture, having a selective reflection of electromagnetic radiation from the wavelength spectrum of sunlight. According to the invention, an optical multi-layer system having a total solar transmission of TTS<40%, a transmission Tvis in the wavelength range of visible light >70% and a reflection Rvis in the wavelength range of visible light <12% is present on said laminated glass. For reflection upon vertical light incidence, it has a reflection colour according to ASTM 308 (illumination source D65 and standard observer 10°) within a colour space that is limited by the values Ra* from −5 to 5 and Rb* from −25 to −40. Alone or in addition, the laminated glass has a reflection colour according to ASTM 308 for transmission and reflection upon verticle light incidence within a colour space (colour box) that is limited by the values Ra* from −5 to 5 and Rb* from −25 to −40.
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