Patent ID: 11897232
Assignee: AGC GLASS EUROPE
Field: Surface technology, coating (Chemistry)
Classification: CPC B  G | IPC B  G

Claim 0:
1. A laminated glazing with an optically transparent area comprising:
at least one inner glass sheet and one outer glass sheet, each having an internal and an external face, at least one of the one inner glass sheet and the one outer glass sheet having an absorption coefficient less than 15 m−1 in the wavelength range from 750 to 1650 nm;
at least one thermoplastic interlayer to laminate the at least one inner and outer glass sheets, comprising at least a first zone and a second zone, the second zone being delimited by the optically transparent area; and
at least one optical sensor device provided on the inner face of the inner glass sheet integrated in the optically transparent area,
wherein in the second zone of the thermoplastic interlayer delimited by the optically transparent area, the laminated glazing has a value of infrared transmission TIR1 higher than a value of infrared transmission TIR2 of the first zone for working wavelengths of the optical sensor device, and
wherein the first zone of the thermoplastic interlayer is made of polyvinyl butyral and a material of the thermoplastic interlayer of the second zone is selected from the group consisting of ethylene vinyl acetate, Cyclic olefin polymer (COP), and polyurethane.