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US 12,686,197 B2Granted
Laminated vehicle glazing and device comprising an associated near-infrared detection system
AssigneeSaint-Gobain Sekurit France
InventorsJuliette Jamart, Keihann Yavari
Life of this patent
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Abstract
A vehicle laminated glazing includes a first extra clear glass sheet forming an exterior glazing, a lamination interlayer and a second glass sheet forming an interior glazing with a through-hole in this second sheet including a piece with a camouflaging coating.
Claims20
A vehicle laminated glazing, comprising:
- a first glass sheet forming an exterior glazing, with a first external main face and a second internal main face to be oriented toward a passenger compartment of a vehicle,
- a lamination interlayer made of polymer material with a first main face oriented toward the second internal main face and a second main face opposite the first main face,
- a second glass sheet forming an interior glazing with a third main face on the side of the second internal main face and a fourth internal main face oriented toward the passenger compartment,
- wherein the first glass sheet has a total iron oxide content by weight of at most 0.05%,
- a through-hole in a thickness of the second glass sheet, the through-hole being centimetric, hole delimited by a wall, closed-off hole or opening hole,
- in the through-hole, a piece which is transparent at least at a working wavelength in an infrared in a range extending from 800 nm to 1800 nm,
- the piece having a main connecting surface oriented toward and connected to the second internal main face,
- the piece having a main interior surface, opposite the main connecting surface,
- wherein the piece comprises a camouflaging coating forming a selective filter which absorbs in the visible range and is transparent at the working wavelength,
- and wherein the vehicle laminated glazing has, in a zone of the through-hole with the camouflaging coating a total transmission of at most 10.0% in the visible range.
7 more elements
Dependencies are inferred from the claim text.