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US 12,005,679 B2Granted
Laminated vehicle glazing, associated device having a near-infrared vision system, and production thereof
AssigneeSaint-Gobain Glass France
InventorsClaire Davis, Keihann Yavari
Life of this patent
Estimating the term…
Abstract
A vehicle laminated glazing includes a first extraclear glass sheet, a lamination interlayer and a second glass or plastic sheet with a traversing hole in the lamination interlayer and the second glass or plastic sheet.
Claims28
A laminated glazing for a vehicle, the laminated glazing of given thickness and comprising:
- a first glass sheet intended to be an exterior glazing with a first external main face F1 and a second internal main face F2;
- a lamination interlayer made of polymer material with a main face FA oriented toward the second internal main face F2 and with a main face FB opposite to the main face FA, of given thickness E3, and
- a second glass or plastic sheet intended to be an interior glazing with a third main face F3, oriented toward the second internal main face F2, and a fourth internal main face F4
- wherein:
- the first glass sheet exhibits a content by weight of total iron oxide of at most 0.05%,
- the second glass or plastic sheet exhibits a traversing hole in a thickness of the second glass or plastic sheet, with a width W1 which is at least centimetric,
- the laminated glazing exhibits, under said traversing hole on a side of the second internal main face F2, a selective filter which absorbs in a visible region and which is transparent at at least one working wavelength in an infrared region in a range extending from 800 nm to 1800 nm, said selective filter having a main surface that is positioned to face the traversing hole,
- opposite said traversing hole, the laminated glazing that faces the traversing hole exhibits:
- a total transmission of at least 80% at the working wavelength, measured at 90°, and
- a total transmission of at most 10% in the visible region.
7 more elements
A laminated glazing for a vehicle, the laminated glazing of given thickness and comprising:
- a first glass sheet intended to be an exterior glazing with a first external main face F1 and a second internal main face F2;
- a lamination interlayer made of polymer material with a main face FA oriented toward the second internal main face F2 and with a main face FB opposite to the main face FA, of given thickness E3, and
- a second glass or plastic sheet intended to be an interior glazing with a third main face F3, oriented toward the second internal main face F2, and a fourth internal main face F4
- wherein:
- the first glass sheet exhibits a content by weight of total iron oxide of at most 0.05%,
- the second glass or plastic sheet exhibits a traversing hole in a thickness of the second glass or plastic sheet, with a width W1 which is at least centimetric,
- the laminated glazing exhibits, under said traversing hole on a side of the second internal main face F2, a selective filter which absorbs in a visible region and which is transparent at at least one working wavelength in an infrared region in a range extending from 800 nm to 1800 nm, said selective filter having a main surface that is positioned to face the traversing hole,
- opposite said traversing hole, a portion of the laminated glazing that faces the traversing hole exhibits:
- a total transmission of at least 80% at the working wavelength, measured at 90° , and
- a total transmission of at most 10% in the visible region, and
- wherein the second glass sheet exhibits a content by weight of total iron oxide of at least 0.40%.
8 more elements
Dependencies are inferred from the claim text.