VEHICLE GLAZING AND DEVICE HAVING AN ASSOCIATED NEAR-INFRARED DETECTION SYSTEM

Abstract

A vehicle glazed unit includes a first glass sheet forming an outer glazing that is extra-clear and a heating layer made of a transparent, near-infrared conductive oxide based on indium oxide with titanium or molybdenum.

Claims

1. A vehicle glazed unit comprising: a first glass sheet forming an outer glazing with a first external main face oriented towards an exterior environment of a vehicle and a second internal main face oriented towards a passenger compartment of the vehicle, at least one first zone that forms an infrared transmission zone transparent to a working wavelength in the infrared in a range from 800 nm to 1800 nm, wherein, in said infrared transmission zone, the glazed unit comprises, opposite the first external main face, a heating coating comprising a heating layer made of an electrically conductive material which is transparent to said working wavelength and which is a transparent conductive oxide comprising an indium oxide and another metal chosen from molybdenum and titanium, the other metal optionally being in the oxidized state, and wherein in the infrared transmission zone with the heating layer, the vehicle glazed unit has a total infrared transmission of at least 70% at the working wavelength.

2. The vehicle glazed unit according to claim 1, wherein a thickness of the heating layer is at most 150 nm and the resistivity is at most 500 ?ohm.Math.cm.

3. The vehicle glazed unit according to claim 1, wherein the heating layer is defined by a power density of at least 100 W/m.sup.2 and of at most 2000 W/m.sup.2.

4. The vehicle glazed unit according to claim 1, wherein for the heating layer, a percentage by weight of indium oxide is at least 90% of a total weight of the transparent conductive oxide.

5. The vehicle glazed unit according to claim 1, wherein the heating coating is on a substrate selected from: the first glass sheet, on the second internal main face, the vehicle glazed unit being monolithic, or the vehicle glazed unit being laminated and comprises on the second internal main face side, a lamination interlayer and a second glass sheet: the second glass sheet being transparent to the working wavelength a film within the lamination interlayer, which is transparent to the working wavelength, and which extends over all or some of the infrared transmission zone, a piece transparent to the working wavelength is present on a main face of the second glass sheet, which is in a through-hole of the second glass sheet in the infrared transmission zone, the lamination interlayer being perforated by an interlayer through-hole in line with said through-hole, or the first glass sheet, on the second glass sheet the lamination interlayer being perforated by an interlayer through-hole in line with a through-hole of the second glass sheet.

6. The vehicle glazed unit according to claim 5, wherein the film is made of glass, which is optionally extra-clear, or the piece is a glass, which is optionally extra-clear.

7. The vehicle glazed unit according to claim 1, wherein the heating coating comprises a stack of layers as follows: at least one underlayer of oxy and/or metal or silicon nitride underlying the heating layer, and/or at least one overlayer of oxy and/or metal or silicon nitride on the heating layer.

8. The vehicle glazed unit according to claim 1, wherein the heating layer has at least two busbars, and hidden from the outside by: a masking layer opaque in the visible spectrum and at the working wavelength, offset from the infrared transmission zone at least in a central region of the infrared transmission zone, and/or by a selective camouflage filter, opaque in the visible spectrum and transparent to the working wavelength present in the infrared transmission zone and optionally protruding from said infrared transmission zone.

9. The vehicle glazed unit according to claim 1, wherein the heating layer has at least two busbars offset from the infrared transmission zone and comprising, on the second internal main face side, a lamination interlayer and a second glass sheet which potentially is perforated in the infrared transmission zone, the at least two busbars are under the second glass sheet.

10. The vehicle glazed unit according to claim 1, wherein the heating layer extends to cover another transmission zone adjacent to said infrared transmission zone.

11. The vehicle glazed unit according to claim 1, wherein in the infrared transmission zone with the heating coating, the vehicle glazed unit comprises, on the second internal main face side a selective camouflage filter which absorbs in the visible spectrum and is transparent to the working wavelength, the vehicle glazed unit having a total transmission of at most 10.0% in the visible spectrum.

12. The vehicle glazed unit according to claim 11, wherein the selective camouflage filter is a camouflaging coating on second internal main face or, the glazed unit being laminated and comprising, on the second internal main face side, a lamination interlayer and a second glass sheet with a main face oriented towards second internal main face and a face oriented towards the passenger compartment, the camouflaging coating being on a submillimeter film within the lamination interlayer, and wherein the heating coating is optionally distant from second internal main face.

13. The vehicle glazed unit according to claim 1, further comprising a functional layer or, the vehicle glazed unit is laminated and comprises on the second internal main face side a lamination interlayer and a second glass sheet with a main face oriented towards the second internal main face and a face oriented towards the passenger compartment, the functional layer being on said main face or said face of the second glass sheet, the functional layer extending over all or piece of the vehicle glazed unit, wherein the functional layer is a transparent electrically conductive layer, or else an opaque masking layer, functional layer which is absorbent to said working wavelength and which is absent from the infrared transmission zone at least in the central zone and is present at an edge of the infrared transmission zone and wherein optionally a functional coating is on the second internal main face, transparent to the working wavelength, facing the infrared transmission zone and in contact with said functional layer.

14. The vehicle glazed unit according to claim 1, wherein, in the infrared transmission zone with the heating coating, the glazed unit comprises, on the second internal main face side, an element which is anti-reflective to said working wavelength, the glazed unit with said anti-reflective element has a total transmission of at least 75% or 80% at the working wavelength.

15. The vehicle glazed unit according to claim 14, wherein the anti-reflective element to said working wavelength is an anti-reflective coating, or the glazed unit is laminated and comprises, on the second internal main face side, a lamination interlayer and a second glass sheet with a third main face oriented towards the second internal main face and a further main face oriented towards the passenger compartment, the anti-reflective coating is on a piece in a through-hole of the second glass sheet or on face.

16. The vehicle glazed unit according to claim 1, wherein the vehicle glazed unit is laminated and comprises, on the second internal main face side, a lamination interlayer and a second glass sheet with a main face oriented towards the second internal main face and a face oriented towards the passenger compartment, the second glass sheet with a through-hole in the infrared transmission zone, having a surface cross-section with a smallest dimension of at least 3 cm, and with a largest dimension of not more than 70 cm.

17. The vehicle glazed unit according to claim 1, wherein the vehicle glazed unit is laminated and comprises: a lamination interlayer made of polymer material with a main face oriented toward the second internal main face and with a main face opposite the main face of the lamination interlayer, a second glass sheet intended to form an interior glazing of the vehicle glazed unit with a third main face on the second internal main face side and a fourth internal main face oriented toward the passenger compartment.

18. The vehicle glazed unit according to claim 17, wherein the first glass sheet has a total iron oxide content by weight of at most 0.05% and the second glass sheet has a total iron oxide content by weight of at least 0.05%.

19. The vehicle glazed unit according to claim 17, wherein the first glass sheet has a total iron oxide content by weight of at most 0.05% and the second glass sheet has a total iron oxide content by weight of at least 0.4% and comprises a through-hole in a thickness of the second glass sheet, the through-hole being centimetric, a hole delimited by a wall, a closed or opening hole.

20. A device, comprising: said vehicle glazed unit according to claim 1, and an infrared detection system at the working wavelength in the infrared, arranged in the passenger compartment and comprising a transmitter and/or receiver, so as to transmit and/or receive radiation passing through the first glass sheet at the infrared transmission zone.

21. The device according to claim 20, wherein the infrared detection system is a LIDAR or a near-infrared camera.

Description

[0243] FIG. 1 shows schematically in cross sectional view a windshield 100 in a first embodiment of the invention with an infrared detection (vision) system such as a LIDAR or a near-infrared camera.

[0244] FIG. 2 shows a schematic front view (passenger compartment side) of the windshield 100 of the first embodiment of the invention.

[0245] FIG. 3 shows schematically in cross sectional view a windshield 200 according to the invention with an infrared vision system such as a LIDAR in a second embodiment of the invention.

[0246] FIG. 4 shows a schematic sectional view of a windshield 300 according to the invention with an infrared vision system such as a LIDAR in a third embodiment of the invention.

[0247] FIG. 5 shows a schematic front view (passenger compartment side) of this windshield 300.

[0248] FIG. 6a shows schematically in cross sectional view a windshield 400a according to the invention with an infrared vision system such as a LIDAR in a fourth embodiment of the invention.

[0249] FIG. 6b shows schematically in cross sectional view a windshield 400b according to the invention with an infrared vision system such as a LIDAR in a variant of the fourth embodiment of the invention.

[0250] FIG. 7 shows a schematic sectional view a of windshield 500 according to the invention, with an infrared vision system such as a LIDAR in a fifth embodiment of the invention.

[0251] FIG. 8 shows a schematic sectional view of a windshield 600 according to the invention, with an infrared vision system such as a LIDAR in a sixth embodiment of the invention.

[0252] FIG. 9 shows a schematic sectional view of a windshield 700 according to the invention, with an infrared vision system such as a LIDAR in a seventh embodiment of the invention.

[0253] FIG. 1 shows schematically a windshield of a vehicle particularly a motor vehicle 100 according to the invention, with an infrared vision system such as a LIDAR at 905 nm or 1550 nm comprising a transmitter/receiver 7.

[0254] FIG. 2 shows a schematic front view (passenger compartment side) of the windshield 100 of the first embodiment of the invention.

[0255] This vision system 7 is placed behind the windshield facing a zone that is preferably located in the central and upper piece of the windshield. In this zone, the infrared vision system is oriented at a certain angle relative to the surface of the windshield (face F4 14). In particular, the transmitter/receiver 7 can be oriented directly toward the image capture zone, in a direction that is nearly parallel to the ground, that is to say slightly inclined toward the road. In other words, the transmitter/receiver 7 of the LIDAR can be oriented toward the road at a slight angle with a field of vision suitable for fulfilling their functions.

[0256] As a variant, the receiver 7 is separate from the transmitter, particularly adjacent.

[0257] The windshield 100 is a curved laminated glazed unit comprising: [0258] an external glass sheet 1, with an exterior face F1 and an interior face F2 [0259] and an internal glass sheet 2, for example with a thickness of 1.6 mm or even less, with an exterior face F3 and an interior face F4 on the passenger compartment side [0260] the two glass sheets being connected to one another by an interlayer made of thermoplastic material 3 (single or multi-laminations), most usually polyvinyl butyral (PVB), preferably clear, of submillimeter thickness optionally having a cross section decreasing in the shape of a wedge from the top to the bottom of the laminated glazed unit, for example a PVB (RC41 from Solutia or Eastman) with a thickness of about 0.76 mm, or as a variant if necessary an acoustic PVB (three-layer or four-layer), for example with a thickness of about 0.81 mm, for example an interlayer in three PVB laminations, PVB with a main internal face 31 and a main face 32.

[0261] The windshield of a road vehicle in particular is curved.

[0262] In a conventional and well-known way, the windshield is obtained by hot lamination of the first, second curved glass sheets 1, 2 and the interlayer 3. For example a clear PVB of 0.76 mm is selected.

[0263] The first glass sheet 1, particularly silica-based, soda-lime-based, soda-lime-silica-based (preferably), aluminosilicate-based, or borosilicate-based, has a total iron oxide content by weight (expressed in the form Fe.sub.2O.sub.3) of at most 0.05% (500 ppm), preferably of at most 0.03% (300 ppm) and at most 0.015% (150 ppm) and particularly greater than or equal to 0.005%. The first glass sheet can preferably have a redox greater than or equal to 0.15, and particularly between 0.2 and 0.30, particularly between 0.25 and 0.30. Particularly an OPTWHITE glass of 1.95 mm is selected.

[0264] The second glass sheet 2 particularly silica-based, soda lime-based, preferably soda-lime-silica-based (like the first glass sheet), even aluminosilicate-based or borosilicate-based, has a total iron oxide content by weight of at least 0.4% and preferably of at most 1.5%.

[0265] The glasses of the applicant called TSAnx (0.5 to 0.6% iron) TSA2+, TSA3+(0.8 to 0.9% iron), TSA4+(1% iron), TSA5+, for example green, can be particularly mentioned. For example a TSA3+ glass of 1.6 mm is selected.

[0266] According to the invention, in a central peripheral region along the upper longitudinal edge 10, the windshield 100a comprises, in order to form an infrared transmission zone: [0267] a through-hole 4, here closed, of the second glass sheet 2, which hole 4 is thus delimited by a wall of the glass 401 to 404 [0268] optionally in a variant with transmitter and separate receiver, close to the through-hole (which is for the receiver), another closed through-hole of the second glass sheet 2 (which is for the transmitter).

[0269] A central line M is defined passing through the middle of the upper edge which can be an axis of symmetry of the glazed unit.

[0270] The through-hole 4 can be central; then the line M passes through and divides it into two identical parts.

[0271] In said infrared transmission zone, the glazed unit comprises, within the lamination interlayer (for example between two PVB sheets), a functional heating element 60. It has an upper edge 601 under the enamel zone 5 and a lower edge 602 toward the center of the windshield.

[0272] The functional heating element 60 comprises a polymer sheet or support, for example PET of 100 ?m, or extra-clear glass (a UTG of 200 or 100 ?m), transparent to the working wavelength of the LIDAR with a first main face on the side of face F2 61 and with a second main face on the side of face F3 62. The support is rectangular in shape with horizontal longitudinal edges 601 and 602.

[0273] The second face 62 (alternatively the first main face 61) bears a heating coating 64 for example rectangular in shape (same shape as the film 60) facing the through hole 4 forming a local heating zone. The heating coating is made of material which is transparent to least at the working wavelength in the infrared, as will be detailed later.

[0274] The horizontal longitudinal edges or large sides 641, 643 of the layer 64 can be parallel to the large sides of the through-hole 4. The small sides 642, 644 of the layer 64 can be parallel to the small sides of the through-hole 4.

[0275] The rectangular heating zone 64 is provided with two electrical leads or first and second horizontal (dedicated) local busbars 65, 66 offset from the through-hole on either side of the large sides of the through-hole 4 supplied with power 67 for example at 15V or 48V, or even 12V or 24V, or even a higher voltage (for an electric vehicle in particular).

[0276] The length of the busbars is adapted to measure, preferably equal to or longer than the large sides of the through-hole.

[0277] In the case of a round or oval through hole, the substantially horizontal busbars can be curved to match the shape of the through-hole.

[0278] It might be sought to place the busbars as close together as possible in order to increase the power density.

[0279] The functional heating element 60 extends beyond the region of the through-hole 4. For example, the heating coating can cover the other possible through-hole, another transmission zone, especially infrared (for another detector etc.).

[0280] The functional heating element 60 can carry elements such as sensor(s) (antenna etc.) of the electroluminescent display, in particular on the face 62 on the F3 side, elements offset from the infrared transmission zone (under face F3).

[0281] The heating coating 64 comprising a heating layer of electrically conductive material transparent to said working wavelength which is a transparent conductive oxide comprising an oxide of indium and another metal selected from molybdenum and titanium, the other metal optionally in an oxidized state.

[0282] For example, the weight percentage of indium oxide is 98%, the weight percentage of molybdenum (optionally oxidized) or titanium (optionally oxidized) is 2%, the sum by weight of indium and titanium (optionally oxidized) or molybdenum (optionally oxidized) is at least 99% or 100%.

[0283] The heating coating further comprises at least one possible undercoat of oxy and/or metal or silicon nitride and/or at least one possible overcoat of oxy and/or metal or silicon nitride.

[0284] In the infrared transmission zone with the heating layer, the glazed unit has an infrared transmission of at least 70% at the working wavelength.

[0285] Table 1 shows as an example heating data (voltage, power) and the size of the heating layer (imposed by the transmission window), the resistance per square, the electrical resistivity and the thickness of the heating layer.

TABLE-US-00008 TABLE 1 Voltage Power Size Rsq Resistivity Thickness Example (V) (W/m.sup.2) (cm.sup.2) (Ohm) (?? .Math. cm) (nm) 1 14 280 100 70 200 30 2 14 280 400 17.5 200 110 3 48 280 400 205 200 10 4 14 280 100 70 400 60 5 14 280 400 17.5 400 220 6 48 280 400 205 400 20 7 48 600 400 96 200 20 8 48 600 400 96 400 40

[0286] As shown in FIG. 2 (sectional view along M), the through-hole is here a closed hole (surrounded by the wall of the glass sheet), thus within the glazed unit particularlywith trapezoidal cross sectioncomprising: [0287] a first large side 401 or upper longitudinal edge closest to the edge face of the upper longitudinal edge of the glazed unit 10parallel to this edge facewith a length of at most 20 cm for example 8 cm and spaced apart by at least 3 cm or 5 cm from the edge face 10 [0288] a second large side 402 or lower longitudinal edge (farthest from the edge face of the upper longitudinal edge 10, near the central zone) parallel to the first large side with a length of at most 70 cm or 50 cm or 20 cm and preferably greater than that of the first large side for example 14 cm, [0289] first and second small sides 403, 404, or oblique lateral edges.

[0290] The height (between the large sides 401, 402) is at least 3 cm, here 6 cm.

[0291] The other hole may be of the same size and the same shape. For example, they are two horizontal holes.

[0292] The through-hole can have rounded corners.

[0293] The through-hole 4 can alternatively be a notch, for example of trapezoidal shape or rectangular shape, thus a through-hole which preferably opens on the roof side (on the upper longitudinal edge 10).

[0294] The closed or opening through-hole 4 can be in another region of the windshield 100a or even in another glazed unit of the vehicle, in particular the rear window.

[0295] In the through-hole and optionally under the through-hole (under face F3) and/or overflush to face F4, a piece 9 is present, made of a material (particularly glass) which is transparent to least at the working wavelength in the infrared of the LIDAR in a range extending from 800 nm to 1800 nm, in particular from 850 nm to 1600 nm, particularly 905?30 nm and/or 1550?30 nm.

[0296] The piece 9 has a main connecting surface 91, here (and preferably) connected to the main face Fb with adhesive contact, and a main interior surface 92 opposite the connecting surface.

[0297] The piece has the same shape as the through-hole (two longitudinal edges 901 and 902 and two lateral edges 903, 904). The piece 9 has an edge face in contact with or spaced apart from the wall 401, 402 delimiting the through-hole by at most 5 mm, preferably spaced apart and by a distance of at most 2 mm and even ranging from 0.3 to 2 mm.

[0298] The interior surface comprising an element which is anti-reflective 101 at said working wavelength, for example an anti-reflective porous silica coating.

[0299] The piece is for example an extra-clear glass, soda-lime-silica, curved and thermally tempered.

[0300] The first glass sheet 1 and the piece 9 can be an OPTIWHITE? of 1.95 mm. The piece is alternatively a flexible extra-clear curved glass of 0.1 mm or 0.3 mm or 0.5 mm or 0.7 mm and optionally chemically tempered. For example, it is Gorilla? aluminosilicate glass.

[0301] The windshield 100a comprises on face F2 12 an opaque masking layer for example black 5, such as a layer of enamel or a lacquer, forming a peripheral frame of the windshield (or of the window) particularly along the upper longitudinal edge 10 of the glazed unit and particularly along the left lateral edge 10 of the glazed unit.

[0302] The external edge 50 of the masking layer 5 closest to the edge face 10 of the glazed unit may be spaced apart by 1 or 2 mm to several cm from the edge face 10 (longitudinal edge).

[0303] The opaque masking layer 5 here has a greater width in the central zone than in the other peripheral zones, on either side of the central zone. The masking layer 5 has an internal (longitudinal) edge 51 in the central zone of the windshield and an internal (longitudinal) edge 52 on either side of the central zone.

[0304] This central zone being provided with the closed hole 4 (FIG. 2), this masking layer 5 comprises: [0305] in line with the first hole 4, a first gap that is large enough not to disrupt the performance of the transmitter/receiver (or of the separate receiver) 7, particularly slightly smaller than the through-hole 4 [0306] where appropriate, in the variant, in line with the other hole, a second gap that is large enough not to disrupt the performance 7 separate transmitter, particularly slightly smaller than the other through-hole.

[0307] The first gap here has the same trapezoidal shape as the hole 4 with two large sides 501, 502 and two small sides 503, 504. The first gap can be preferably of identical size or smaller than the hole 4 for example the walls 501 to 504 delimiting the first gap protruding by at most 50 mm or 10 mm or even 5 mm from the walls of the glass 401 to 404. As a variant, this is a rectangle or any other shape particularly inscribed in the surface of the through-hole (trapezoidal or another).

[0308] The masking layer 5 is capable of masking the casing 8 (plastic, metal, etc.) of the LIDAR 7. The casing 8 can be adhered to face F4 14 by an adhesive 6 and to the roof 80. The casing may be attached to a plate 8 mounted on face F4, with holes to allow said IR rays to pass.

[0309] In the infrared transmission zone, the first glass sheet 1 comprises, on face F2, a camouflaging coating 102 which is transparent to the working wavelength in the infrared and absorbs in the visible range.

[0310] The camouflaging coating 102 is here rectangular in shape in this peripheral region.

[0311] The edges of the camouflaging coating optionally protrude between face F2 12 and face Fa 31 for example at most by 10 mm or 5 mm from the walls 401 to 404 delimiting the through-hole 4. Here, the camouflaging coating 102 partially covers the optional masking layer 5 on face F2.

[0312] The camouflaging coating 102 alternatively has another shape, for example a shape homothetic to that of the section of the through-hole, thus for example a trapezoidal shape.

[0313] Face F3 13 comprises a conductive layer 103 for solar control or low emissivity, possibly heating, in particular a silver stack.

[0314] Possible variants are as follows (without being exhaustive), optionally cumulative: [0315] the camouflaging coating 102 does not protrude from the through-hole and even is spaced apart from the edge of the through-hole, preferably by at most 1 cm or 5 mm [0316] the camouflaging coating 102 is spaced apart from the masking layer (for example which is on face F2 particularly of the enamel) or at least does not cover it.

[0317] Alternatively, the heating coating is: [0318] on face F2 12 [0319] on the second glass sheet 2, preferably on the main face F3 13 opposite face F2 12 [0320] on the piece 9 particularly the side facing face F2.

[0321] The functional heating element 60 can also serve as camouflage by adding a camouflaging coating as described previously (especially if the piece 9 is transparent). Its extent is adapted, the camouflaging coating can be preferably on face 61, here opposite the heating layer or alternatively even on all or part of the heating layer and the busbars.

[0322] FIG. 3 shows schematically in cross sectional view a windshield 200 according to the invention with an infrared vision system such as a LIDAR in a second embodiment of the invention. FIG. 4 shows a schematic front view (passenger compartment side) of this windshield 200.

[0323] Only the differences with the first embodiment are explained hereunder.

[0324] The busbars 65, 66 are vertical (or oblique, parallel to the edges 901, 903 of the part) rather than horizontal.

[0325] FIG. 4 shows a schematic sectional view of a windshield 300 according to the invention with an infrared vision system such as a LIDAR in a third embodiment of the invention. FIG. 5 shows a schematic front view (passenger compartment side) of this windshield 300.

[0326] Only the differences with the first embodiment are explained hereunder.

[0327] The heating layer 64 with the horizontal busbars 65, 66 is placed on the connecting surface 92 of the piece 9. The heating layer is for example the same shape as the part, here trapezoidal. The horizontal longitudinal edges or large sides of the layer 64 are parallel to the large sides of the piece 9. The small sides are parallel to the small sides of the piece 9. Here the busbars are as peripheral as possible to offset them from the central infrared transmission zone.

[0328] Furthermore, potentially the opaque masking layer 5 is not widened in the central zone (passing through M). For example, there is an athermal layer 62 on face F2 12 covering substantially face F2 (excluding the infrared transmission zone and opaque masking layer). The electrically conductive athermal layer 62 (solar control, heating, etc.) lacks or is provided with a first trapezoidal gap (as a variant, rectangular, or any other shape) in line with the through-hole 4 (infrared transmission zone). There is no longer a camouflaging coating on face F2 in the infrared transmission zone.

[0329] A functional element 60 completes the masking (for the outside) and forms an enlarged central masking zone (sensor location zone, etc.) and is arranged inside the lamination interlayer, for example made of two PVB sheets. It has an upper edge 601 under the enamel zone 5 and a lower edge 602 toward the center of the windshield, for example facing the athermal layer 62.

[0330] The functional masking element 60 comprises a sheet or support for example of 100 ?m, particularly made of polymer for example PET or UTG, transparent to the working wavelength of the LIDAR with a first main face on the side of face F2 61 and with a second main face on the side of face F3 62.

[0331] The first face 61 (alternatively the second main face 62) bears a camouflaging coating that is opaque in the visible range 63 and transparent to the working wavelength. This camouflaging coating is then also used to hide the LIDAR and the box 8.

[0332] As a variant, the first face 61 (alternatively the second main face 62) bears a coating that is opaque in the visible range and at the working wavelength, provided with a trapezoidal gap (as a variant, rectangular, or any other shape) in line with the through-hole 4.

[0333] The insert 60 can bear a sensor (antenna, etc.) of a light-emitting screen particularly on face 62 side F3. The opaque camouflaging coating 63, the opaque insert 60 can then comprise one or more resists for these sensors.

[0334] Alternatively, the opaque insert 60 is opaque in mass (without camouflaging coating) and may then comprise one or more resists or one or more transparent zones in mass.

[0335] FIG. 6a shows schematically in cross sectional view a windshield 400a according to the invention with an infrared vision system such as a LIDAR in a fourth embodiment of the invention.

[0336] FIG. 6b shows schematically in cross sectional view a windshield 400b according to the invention with an infrared vision system such as a LIDAR in a variant of the fourth embodiment of the invention.

[0337] As shown in FIGS. 6a and 6b, the through-hole 4 is a notch, for example trapezoidal (FIG. 6a) as well as the gap in the opaque layer 5 with its edges 502, 503, 504 or rectangular (FIG. 6b) as well as the gap in the opaque layer 5 with its top and bottom edges 502, side edges 503, 504.

[0338] The through-hole is preferably on the roof side (on the upper longitudinal edge 10). The through-hole 4 here has rounded corners.

[0339] The opening through-hole 4 can be in another region of the windshield 100 or even in another glazed unit of the vehicle, in particular the rear window.

[0340] For example, the busbars 65, 66 on the piece are horizontal (FIG. 6a) or vertical (FIG. 6b).

[0341] FIG. 7 shows a schematic sectional view a of windshield 500 according to the invention with an infrared vision system such as a LIDAR in a fifth embodiment of the invention.

[0342] Only the differences with the first embodiment are explained hereunder.

[0343] In one embodiment, the PVB lamination interlayer has an interlayer through-hole with a shape that is homothetic to the through-hole 4, for example, trapezoidal or rectangular, for example, slightly wider, with top and bottom longitudinal walls 301, 302 below the through-hole.

[0344] The piece 9 is in adhesive contact with a connecting film 81 which may be made of identical or different material to the PVB and/or have an identical or different thickness to the perforated PVB. The connecting film 81 allows the piece 9 to be bonded to face F2 with the camouflaging coating 102.

[0345] After lamination, the connecting film 81 is not necessarily distinguishable from said PVB sheet (and forming a PVB continuity by creep, its edges being in contact with the edges 301 and 302).

[0346] The piece 9 is transparent. It has the heating coating 64 (with peripheral, for example, side, busbars) on the connecting surface 91 rather than on an additional support.

[0347] As a variant, the interlayer hole is partial and the connecting film can be removed.

[0348] FIG. 8 shows a schematic sectional view of a windshield 600 according to the invention, with an infrared vision system such as a LIDAR in a sixth embodiment of the invention.

[0349] Only the differences with the first embodiment are explained hereunder.

[0350] The second glass sheet 2 is made of extra-clear glass and has no through-hole in the infrared transmission zone.

[0351] Possibly an anti-reflective coating is on face F4 14 in this zone.

[0352] The solar control or low-emissivity, possibly heatable conductive layer 103, in particular a silver stack, is provided with a gap in the infrared transmission zone.

[0353] FIG. 9 shows a schematic sectional view of a windshield 700 according to the invention, with an infrared vision system such as a LIDAR in a seventh embodiment of the invention.

[0354] Only the differences with the last embodiment are explained hereunder.

[0355] The heating coating 64 is on face F3 and not on the thin support 60, which itself has a camouflaging coating 63 (as in the third embodiment).