Assembly comprising vehicle glazing with a through hole for using an infrared camera

Abstract

Assembly (1') comprising: - a vehicle glazing (1), in particular a windshield, comprising at least one glass sheet (11), at least one through-hole (10) in the glass sheet - a receiving part (4) which has a hollow body (40) and which is mounted in the through-hole (10), - an interface part (3) comprising an observation porthole (30) which is transparent to a wavelength in a range from 5 to 20 µm, and the interface part (3) being removably fixed in the receiving part (4) and the interface part (3) extends beyond the through-hole and is adapted to be fixed to an infrared camera. [Fig. 1]

Description

Title of the invention: Assembly comprising vehicle glazing provided with a through hole for using an infrared camera

[0001] The invention relates to the integration of driver assistance systems (so-called AD AS) in vehicles which improve safety, in particular the integration of an infrared camera operating in the far infrared.

[0002] Today, vehicles are equipped with advanced driver assistance systems (generally referred to by the acronym ADAS meaning "Advanced Driver-Assistance Systems") which assist the driver in his perception of the environment and, for the vehicle, in particular to detect obstacles and react in an automated and anticipated manner in relation to the driver's reflexes. ADAS use several detection device technologies.In particular, these systems include vision cameras in the visible wavelengths (between 0.4 and 0.8 pm), thermal cameras in the far infrared between 5 and 20 pm and laser detection devices, also known as LIDAR, an acronym for the English expression "Light Detection And Ranging" or "laser detection and ranging" (or in French "detection and estimation of the distance by light" or "by laser") which operate in the near infrared (between 0.7 and 2.5 pm).

[0003] While visible cameras can easily be arranged in several places in the vehicle, in particular at the windshield, this is not the case for infrared cameras which are arranged near the headlights, behind the bumper, or even on the roof for so-called autonomous vehicles. However, the arrangement at the bumper level has several disadvantages, such as too low detection, the risk of damage or misadjustment in the event of impacts on the bumper, the difficulty of cleaning the sensor and the need to integrate defrosting means.

[0004] Also, the current trend validated and requested by equipment manufacturers is to place the thermal camera operating in the far infrared (IR), in a high position behind the windshield. However, the integration of a thermal camera inside the vehicle can be prevented by the absorption of infrared light rays by the windshield. Indeed, the transmission rate of a light ray through a windshield is too low for a far infrared wavelength. It is therefore known for a windshield to create a hole to arrange an insert formed by a material transparent to far infrared light rays, as described in patent application WO2022 / 023650. Thus, these far infrared light rays can pass through the windshield through the insert, so as to be detected by an infrared camera (thermal camera type) arranged inside the vehicle.

[0005] If the solution in this document makes it possible to arrange such an infrared camera inside the vehicle behind a windshield, it is still sought to further facilitate the arrangement and fixing of the infrared camera.

[0006] The invention therefore aims to propose a new solution for integrating an infrared camera operating in the far IR region into the rear of a vehicle window.

[0007] In the remainder of the description, the term "infrared camera" is understood to mean a camera having a working wavelength which is in a range of infrared wavelengths (far infrared rays) ranging from 5 to 20 pm, in particular ranging from 8 to 14 pm.

[0008] The invention therefore relates to an assembly comprising: - vehicle glazing (preferably laminated), in particular a windshield (preferably laminated), comprising at least one sheet of glass, at least one through hole (in the thickness of the glazing) in the sheet of glass - a receiving part which has a hollow body and which is mounted (preferably in a fluid-tight manner) in the through hole, - an interface part comprising an observation porthole which is transparent to a wavelength in a range from 5 to 20 pm (working wavelength of the infrared camera), in particular between 8 and 14 pm, porthole in the through hole and housed in the hollow body the interface part being removably attached to the docking part and the interface part extending beyond the through hole (toward the indoor environment) and is adapted to be attached to an infrared camera (with an IR working wavelength), in particular the infrared camera having a lens body (with a termination, an end) connected to an infrared sensor housing.

[0009] Thus, the through hole, the receiving part and the interface part by their design make it possible to fix the infrared camera against the glazing while guaranteeing an area of ​​transparency to infrared (in other words IR camera area or IR transmission window). The interface part comprises the porthole which is integrated into the through hole of the glazing giving onto the environment outside the vehicle.

[0010] Furthermore, the interface part provides a closed optical conduit from the end of the camera lens body to the surface of the glazing (the outer face preferably called face F1). This prevents dust or moisture from depositing on a camera lens as in the case where the camera is spaced from the glazing and in the air. Furthermore, the fact that the interface part of the invention integrates the observation porthole at its end and is fixed to the camera makes it possible to choose the position of the optical axis in a tailored and precise manner. For example, the optical axis (in particular horizontal) passes through the center of the porthole or is off-center, in particular the horizontal axis and is offset from the center upwards.

[0011] In addition, since the interface part is fixed in a removable manner relative to the receiving part, this facilitates its maintenance or the replacement of the observation porthole (for example in the event of chips or scratches), or even to replace the glazing. This saves on maintenance costs.

[0012] The interface part may be a single piece or made of several parts assembled in particular in a removable manner, for example possibly with distinct (equivalent) internal diameters, part(s) of straight section, constant or not, stepped, etc. The interface part may be arranged (connected) at the distal end of the camera lens body. The interface part may be cylindrical.

[0013] In the remainder of the description, the term "face of the glazing" means one of the main faces of the glazing. The same applies to a face of the porthole; this is a main face of the porthole.

[0014] In the remainder of the description, the term "hole" means a hole which passes through the thickness of the glazing (monolithic or laminated) from one exterior face to the other opposite interior face of the glazing, the hole being able to be arranged at a distance from the edge of the glazing (and therefore having a closed perimeter) or being at the edge of the glazing such as a notch (and therefore having an open perimeter by opening onto the edge of the glazing, towards the outside of the glazing). The hole has a wall which delimits its perimeter which can therefore be closed or open.

[0015] In the remainder of the description, the term "receiving part fixed to the glazing" means that the receiving part is attached to the inside of the hole in the glazing (it is made integral with the wall of the hole depending on the thickness / depth of the glass of the glazing) or is attached integrally to an element subsequently referred to as a filling element which is inserted between the wall of the hole and said receiving part.

[0016] In the remainder of the description, the term “depth” means the dimension extending transversely to the main faces of the glazing.

[0017] According to one feature, the interface piece is designed to support the weight of the infrared camera when the interface piece is attached to the glazing.

[0018] The interface part comprises a spacer part (hollow, having an interior surface) which connects the camera to the receiving part of the glazing.

[0019] According to one characteristic, the interface part comprises a spacer part capable of connecting the camera to the receiving part, in particular capable of connecting the lens body of the camera to the receiving part.

[0020] According to one characteristic, the interface part comprises an integration part which is located at the end of said spacer part and which is housed in the receiving part. The integration part houses the porthole.

[0021] In particular, the spacer part has a shape adapted to cooperate (therefore cooperates) with the receiving part so that the observation porthole is parallel to the glazing, in particular (with an external face) flush with the so-called external face (Fl) of the glazing, intended to be turned towards the external environment. And / or the spacer part, on at least one portion (projecting from the through hole), faces said through hole and comprises a portion offset from said through hole. This offset portion may be parallel to the glazing (glazing inclined in the mounted position) or form an angle of at most 80° or 60°, and even at most 30° or 20° with the (plane of the) glazing. The fixable area (attachment part) to the camera - all or part - around the lens body and / or the sensor housing) is then also offset from said through hole. In the offset portion, the optical axis may be parallel to the glazing (inclined glazing in the mounted position) or form an angle of at most 80° or 60°, and even at most 30° or 20° with the (plane of the) glazing.

[0022] In particular, the spacer portion has a shape suitable for mechanically connecting the lens body to the glazing.

[0023] The interior of the spacer portion is designed to optically connect the viewing port to the viewing end of the lens body (the usual outer lens of a camera lens).

[0024] The interior of the spacer part may optionally comprise one or more IR mirrors, in particular when the interface part (in particular the spacer part) has a portion offset from the through hole - for example the interface part is bent (of L-shaped section, etc.) - as already described.

[0025] According to one characteristic, the interface part comprises a fixing part which is adapted to cooperate with fixing zones with which the receiving part is provided.

[0026] In particular, the interface part comprises a spacer part which connects a so-called observation end of the lens body of the infrared camera to the glazing, the observation porthole which is arranged at an end of the spacer part opposite the observation end of the lens body, and a fixing part which is adapted to cooperate with fixing zones with which the receiving part is provided.

[0027] The shape of the inner surface of the integration part may be identical to or distinct from that of the spacer part and / or the attachment part. For example, the attachment part is circular or a circular portion and / or the inner surface of the integration part (such as the porthole) is circular or trapezoidal.

[0028] The shape and / or the (equivalent) diameter of the internal surface of the integration part may be identical or distinct from that of the spacer part and / or the attachment part.

[0029] The interface part may have one or more different (equivalent) internal diameters along its length in particular: a diameter DI (at the integration part) therefore at the hole - then similar to the (equivalent) diameter of the porthole, and / or an (equivalent) diameter D2 at the attachment part (function of the external diameter of the lens body for example) to the camera and / or a diameter (equivalent) D3 -in the interlocking part- between the hole and the attachment part (in particular beyond the end of the infrared camera lens).

[0030] D2 may be similar to the diameter of the lens body. DI is preferably greater than or equal to the diameter D2 (and / or the diameter of the end of the lens). D3 may preferably be greater than or equal to the diameter D2.

[0031] For example, the (equivalent) diameter D2 of the attachment part, in particular annular, on the lens body is preferably at least 5mm or 10mm and even at most 50mm and even at most 30mm. The lens body has in particular an external diameter preferably of at least 5mm or 10mm and even at most 50mm and even at most 30mm.

[0032] The length of the interface piece outside the through hole may be at least 2mm or 5mm and even 10mm and preferably at most 50mm or 20mm.

[0033] The total length of the interface part may be at least 2mm or 5mm and even 10mm m and preferably at most 50mm or 20mm.

[0034] When the interface piece is bent (with an angle as already described) the total length of the interface piece may be at least 5mm and even 10mm or 15mm and preferably at most 50mm. The length of the interface piece (outside the through hole) before the bend, closest to the hole, may be at least 2mm and even at most 10mm and / or the length after the bend (closest to the fixing part) may be up to 48mm.

[0035] According to one characteristic, the interface part has a closed perimeter and is hollow (housing the insert), for example a circular hollow body over all or part. According to one characteristic, the interface part has an external wall which is opposite the wall of the hole and an internal wall which is able to cooperate (intimately) with the porthole (via its edge).

[0036] According to one characteristic, the observation porthole is flush with (without protruding from) the so-called external face (face F1) of the glazing, intended to be turned towards the external environment.

[0037] According to one characteristic, the observation porthole is made of a material which is transparent to the working wavelength of the IR camera, i.e. in a wavelength range from 5 to 20 pm, in particular between 8 and 14 pm. According to one characteristic, the observation porthole is integrated into a so-called integration part which is housed in the through hole. According to one characteristic, the observation porthole has a thickness which is equal to or less than the thickness of the glazing or is in excess thickness on the interior environment side. In particular, the observation porthole has a thickness which does not exceed 10 mm.

[0038] The material of the observation porthole preferably has a light absorption coefficient of less than 0.5 cm4, preferably less than 0.1 cm4, for a light ray having at least one wavelength chosen between 5 pm and 20 pm inclusive, preferably between 8 pm and 14 pm inclusive (working wavelength of the IR camera).

[0039] Preferably, the material of the observation porthole has a purity (by weight) of at least 99.99% or even at least 99.995% and better still 99.999% and / or free from inclusions (and / or crystalline defects) of a size greater than 20 μm or even 12 or 10 μm.

[0040] The material of the observation porthole is for example colorless or tinted (while remaining transparent) in particular yellow, orange.

[0041] The observation porthole can be curved in particular to follow the local curvature of the glazing.

[0042] The material of the observation porthole can be polished (main exterior and interior face).

[0043] The material of the observation porthole is preferably of cubic crystallography.

[0044] Advantageously, the observation porthole is transparent to infrared from 5 pm to 20 pm, therefore including the limits, and better still from 8 pm to 14 pm, and its material is a polycrystalline material (easier to manufacture than a single crystal).

[0045] The material of the observation porthole may be chosen from zinc sulfide, zinc selenide, silicon, germanium, BaF2, sapphire, CaF2, a chalcogenide glass (in particular based on chalcogen elements Te, Se, S, in particular alloys of elements from As, S, Se, Te, Ge, Sb or even Ga) and a crosslinked organosulfur hybrid polymer comprising linear sulfur chains crosslinked by organic comonomers.

[0046] As an example of chalcogenide glass, we can cite Ge28Sbi2Se60 (notably IRG25® from Schott, IG5® from Vitron, GASIR2® from Umicore) or even As40Se60 (notably IRG26® from Schott, IG6® from Vitron, GASIR5® from Umicore).

[0047] According to one characteristic, the infrared-transparent material of the observation porthole comprises zinc sulfide (ZnS), and / or zinc selenide (ZnSe) and / or barium fluoride (BaF2) and / or germanium (Ge) and / or silicon (Si) or a chalcogenide glass.

[0048] Advantageously, the infrared-transparent material of the observation porthole is made of a material which is chosen from the following material (preferably polycrystalline) (in particular obtained by chemical vapor deposition): - a zinc compound comprising selenium and / or sulfur; - a compound comprising a barium fluoride; - or even a compound containing thallium bromide-iodide such as KRS-5 (Thallium Bromide-Iodide).

[0049] In particular, the infrared-transparent material of the observation porthole is chosen from: - a compound comprising a multispectral zinc sulfide, in particular obtained after hot isostatic pressing (treatment by an isostatic press at a temperature preferably of at least 800°C), in particular including selenium, such as ZnSxSC| x with x preferably at least 0.97, better still at least 0.99 and even better still at least 0.998; - a compound comprising a zinc selenide, in particular ZnSe, in particular including sulfur, such as ZnSeSi y with y of at least 0.97, better still at least 0.99 and even better still at least 0.998; - a compound comprising a barium fluoride, in particular including calcium and / or strontium, in particular Ba, jCa.SijFo with i+j strictly less than 1, i and j preferably each at most 0.25, better still at most 0.03 or even better still at most 0.005 or even BauCaiF2 with i strictly less than 1 and preferably at most 0.25, better still at most 0.03 or even better still at most 0.005, in particular BaF2.

[0050] Advantageously, to improve the mechanical resistance, the observation porthole comprising an outer face and an inner face, comprises a mechanical and / or chemical protection layer on the outer face and possibly on the inner face (in particular if it is removable relative to the lens body of the infrared camera).

[0051] The mechanical and / or chemical protection layer (preferably a coating - single-layer or multi-layer -) can be chosen from at least one of the following layers: - a layer comprising a zinc sulfide (in particular ZnS) in particular on a ZnSxScix insert, in particular ZnSe, for mechanical protection, - a diamond layer, preferably amorphous for its adhesion properties to the crystal of the insert, in particular with a thickness of at least 10 nm or 20 nm and preferably from 50 nm to 300 nm and even at most 100 nm, - a DLC layer (for “Diamond Like Carbon” in English), that is to say a layer based on diamond-like carbon, preferably amorphous, in particular with a thickness of at least 10 nm or 20 nm and preferably from 50 nm to 300 nm and even at most 100 nm.

[0052] According to one characteristic, the size (radius, equivalent radius or length) of the porthole may be at least 5 mm or 1 cm and / or at most 20 cm (porthole for several sensors) or 6 cm (porthole dedicated to infrared camera). The size of the porthole may be suitable for a camera area common to at least one infrared camera (far) and possibly a LIDAR or near infrared camera and / or a camera in the visible. In particular, the porthole is also transparent to the visible and / or near infrared between 0.7 and 5 pm, in particular between 0.7 and 2.5 pm, in particular at 905nm and 1550nm.

[0053] According to one characteristic, the porthole has a section in the plane parallel to the main faces of the glazing, which may correspond to one of the following geometries: preferably circular, oval, oblong, trapezoidal or even rectangular, square, quadrilateral. In particular, the porthole has a section in the plane parallel to the faces of the glazing, the perimeter of which is curved and / or straight lines. The dimensions of the porthole are in particular a function of its geometry.For example (without being limiting), for a round-shaped section, the porthole has a radius of preferably at most 5cm or 4cm or 3cm or 2cm, for an oval shape, the smallest radius is at least 1cm and the largest radius is at most 5cm or 4cm or 3cm or 2cm, for an oblong shape, the length is preferably at most 10cm or 8cm or 6cm or 5cm, and in the case of this oblong shape with round ends, the radius of curvature (at the ends) is preferably at most 5cm or 4cm, and for a trapezoidal shape with a large base and a small base, the large base is preferably at most 20cm or 15cm or 8cm and / or the small base is preferably at most 15cm or 10cm or 5cm and the height separating the large base from the small base is preferably of at most 8 cm or 6 cm or 4 cm.

[0054] The porthole may have a constant cross-section depending on the thickness of the porthole (dimension parallel to the thickness of the glazing and transverse to the faces of the glazing). However, depending on the type of assembly and cooperation with the interface part, the cross-section of the porthole may be variable, the cross-section being able to be trapezoidal in shape, converging towards the inside of the hole (and towards the internal sheet of the glazing).

[0055] The edge of the porthole is not necessarily smooth. The interface part (internal wall, internal surface in particular) may comprise a so-called securing part of the porthole. The securing part and the edge of the porthole may have elements with complementary shapes, in particular configured to block movement of the porthole relative to the securing part in a direction normal to the surface of the glazing.

[0056] In particular, the edge of the porthole and the securing part (internal wall, internal surface in particular) opposite said edge may have one or more elements with complementary shapes for fixing purposes, in particular one or the other may have one or more grooves in particular whose shape is capable of ensuring good support. The elements with complementary shapes may thus be formed by a series of grooves formed on the securing part. and by a series of grooves formed on said edge, the grooves formed on the securing portion having a form complementarity with the grooves formed on said edge. Each groove may form a closed line along the edge. The grooves may be parallel to each other. Preferably, the form-complementary elements comprise at least two grooves, preferably at least three grooves, preferably at least four grooves. The form-complementary elements may have a thickness along an axis defined by the total height of the porthole. This thickness may be less than one tenth of the (equivalent) diameter of the porthole, and preferably less than one twentieth of the (equivalent) diameter of the porthole. This thickness may be less than 1 mm. Thus, it is possible to mechanically hold the porthole in the securing portion in the absence of adhesive while maximizing the size of the porthole.

[0057] According to one embodiment, the interface part is adapted to be removably attached (preferably mechanically) to an infrared camera, in particular to a lens body of the camera, to an infrared sensor housing of the camera or to both the lens body and the housing.

[0058] In particular, the interface part comprises an attachment part which is fixed (preferably mechanically) entirely or partially on the periphery of the camera, in particular on the periphery of the lens body, for example at the distal end of the lens body, close to the termination of the lens body or conversely close to the housing. The attachment part can be fixed by screwing, clipping or even an integrated bayonet and quarter-turn system.

[0059] The attachment part may be of closed or open perimeter. The interface part may preferably be of closed perimeter at least up to the end of the lens body or even the attachment part (integration part and all or part of the spacer part with closed perimeter).

[0060] The interface part can be fixed (mechanically) by complementarity of shapes between the camera (lens body and / or housing) and the interface part (the fixing part). The fixing part can be between the lens body and the housing.

[0061] The removability of the interface part with respect to the infrared camera makes it possible to design an interface part for cameras already existing on the market.

[0062] In particular, the interface part is adapted to be removably attached to the lens body of the infrared camera, in particular the interface part comprises an attachment part, in particular of annular shape which is attached to the periphery of the lens body, preferably by screwing. The interface part comprises a part designed to fit the lens body of the infrared camera. The attachment part forms for example a ring which is attached by screwing to the lens body of circular shape. for example near the viewing end of the infrared camera lens body, or conversely near the housing.

[0063] the interface part can be adapted to be removably fixed to the housing or even to the lens body and in particular the interface part (3) comprises an attachment part (34), which can be fixed in whole or in part around the periphery of the or even to the lens body, preferably mechanically, for example by clipping.

[0064] In addition, the interface part (at least the integration part) will advantageously be designed according to the type of attachment provided with the glazing reception part. The interface part (at least the integration part) comprises in particular a part designed to be removably attached to the reception part.

[0065] The through hole is preferably at the upper edge of the glazing (of the windshield) and in particular in a central (upper) zone, in particular the rearview mirror zone and / or the zone of one or more other sensors (rain sensor, etc.).

[0066] Advantageously, the receiving part is mounted in the through hole of the glazing according to a mounting by gluing (the part is glued via an adhesive) or by overmolding (the part is an overmolding for example) or by force. Preferably, in the case of irremovable mounting of the receiving part with the glass of the glazing or with an inserted element called subsequently a filling element, the receiving part is mounted in the through hole of the glazing according to a mounting by overmolding. In the case of gluing, the adhesive is for example polyurethane (PU) or silicone.

[0067] In one embodiment, in particular when the hole forms a notch in the glazing, the hole comprises a filling element (in particular a part or plate with a hole for mounting the interface part and the porthole) which is arranged between the hole (the wall of the hole) and the receiving part. The receiving part possibly has a section different from the section of the hole. The filling element is in particular metallic (in particular stamped sheet metal), or is made of plastic, in particular a thermoplastic (injected), the plastic being such as in one of the following materials, ABS / PC, PA66, PP (polypropylene), PC (polycarbonate) or PMMA. In particular, the filling element is rigid, that is to say it has a hardness greater than 40 Shore D. The filling element is in particular integral with the hole (at least with the wall of the hole); the filling element is glued to the hole or the hole is (over)molded by the filling element.The receiving part and the filling element (the part) are secured in particular by an adhesive, for example polyurethane (PU) or the receiving part (plastic or metal) is (over)molded by the filling element (plastic, injected) or the filling element is (over)molded by the receiving part or the receiving part is force-fitted into the filling element. In the case of a bonding by gluing for the filling element with respect to the glazing and for the receiving part with respect to the element. filler, other glues than PU may be suitable, the glue should preferably be flexible, i.e. having a Young's modulus of less than 10 MPa, such as silicone.

[0068] According to one characteristic, the glazing is laminated by comprising two sheets of glass which are bonded to each other by a lamination interlayer, made of polymer material, in particular thermoplastic, for example polyvinyl butyral (PVB), for example clear, and of submillimeter thickness such as at least 0.3 mm thick and in particular 0.38 mm, 0.76 mm or 0.81 mm, the lamination interlayer being single-layer or multi-layer and possibly being acoustic. The glazing preferably comprises at least one sheet of mineral glass, preferably the outer sheet. The glass sheets may be 2.1 mm thick or even 1.6 mm or even less. At least one of the glass sheets may be tinted; alternatively, the interlayer may be tinted. The glazing could be monolithic. Monolithic glazing consists of a sheet of glass which can be organic glass (PMMA (polymethyl methacrylate acrylic), etc.) or mineral.

[0069] The glazing according to the invention may comprise an opaque (masking) layer, in particular an enamel (black, etc.) or an ink (black, etc.) on the lamination interlayer (PVB, etc.), at a distance from or at the edge of the through hole and which may extend over the glazing (so as to mask the fixing of the interface part with the infrared camera and possibly other sensors or cameras, for example, or even the cover). In particular, it is a peripheral masking frame (enamel, ink, etc.) and the hole is within this frame (closed hole or notch).

[0070] A main face (for example the face called F2 or F3 or F4) of the glazing may comprise an opaque (masking) layer, in particular an enamel (black, etc.) in an ink, at the edge of the through hole (so as to mask the fixing of the infrared camera for example). In particular, it is a peripheral masking frame (enamel, ink, etc.) and the hole is within this frame (closed hole or notch).

[0071] It is also possible to provide a masking layer (black ink or another color) on at least one of the main faces of the interlayer lamination interlayer, in particular made of PVB.

[0072] According to one characteristic, the receiving part may match the section of the hole (the receiving part has its external section complementary to the geometry of the hole) or not; if the receiving part does not match the section of the hole, a filling element is inserted between the hole (the wall of the hole) and the receiving part (the external wall of the receiving part).

[0073] Preferably, the receiving part has a shoulder which is external to the hole and is applied, around the perimeter of the hole, against the so-called interior face of the glazing, and / or against an interior face (face parallel to a main face of the glazing) of a filling element that is inserted between the receiving part and the wall of the hole. In particular, the hole is a notch.

[0074] According to one characteristic, the receiving part comprises a shoulder (projecting towards the outside of the hollow body of the receiving part) applied against one of the faces of the glazing, on the side (of the lens body) of the infrared camera, and fixing zones extending in projection from the shoulder and with which cooperate a fixing part of the interface part which preferably extends radially relative to the lens body of the infrared camera. Depending on the type of fixing and the design of the fixing part of the interface part, the fixing zones of the shoulder project while being coplanar or not with the shoulder. They can for example form L-shaped tabs.

[0075] According to one characteristic, the assembly comprises retaining means for removably fixing the interface part in the receiving part, the retaining means being integrated in a single piece to the interface part and to the receiving part and / or the retaining means being removably attached to cooperate with a fixing part provided on the outside of the interface part (in particular on the outside of the spacer part of the interface part and beyond the integration part) and with fixing zones provided in the receiving part, in particular the retaining means being clipping elements or screws or a bayonet and quarter-turn system.

[0076] For example, the interface part and the receiving part cooperate by screwing, in particular the receiving part comprising a tapping while the interface part comprises a thread, in particular the tapping and the thread being arranged on parts of the receiving part and the interface part, which are inside the hole, and / or outside the hole and on the side of a so-called inner face of the glazing. Or the receiving part and the interface part cooperate by clipping, in particular the receiving part comprising female shapes while the interface part comprises male clipping shapes, in particular male shapes made of spring steel, capable of cooperating by engagement in the female shapes, clipping inside the hole, and / or outside the hole and on the side of a so-called inner face of the glazing.

[0077] Preferably, the retaining means are clipping means. The clipping means are, for example, elastic male shapes, preferably made of spring steel, capable of cooperating by engagement in female shapes (the male clipping shapes being capable of elastically deforming for their engagement in the female shapes and their disengagement).

[0078] According to one characteristic, the retaining means extend around the entire perimeter of the receiving part and the interface part, or are located on the receiving part and on the interface part.

[0079] The retaining means may be arranged, on the one hand, at a shoulder of the receiving part which bears against the inner face of the glazing (F4 if laminated) and / or against said filling element in the hole, inserted between the hole and the receiving part, and on the other hand, at one or more portions of the interface part extending radially from the annular body (of the spacer part) of the interface part.

[0080] Preferably, the receiving part extends over the entire depth of the hole (without projecting beyond the outer face (face F1) of the glazing).

[0081] According to one characteristic, the interface part is made of plastic and / or is metallic.

[0082] The dimensioning of the through hole depends in particular on the technology chosen to make the hole, the camera, the materials used for the receiving part, the interface, the coefficients of thermal expansion, the means of securing the parts together, etc. The area of ​​the porthole can for example be from 10 cm2 to 150 cm2. The thickness of the interface part (at least in the area of ​​the through hole) is preferably at least 0.5 mm or 1 mm. The thickness of the receiving part is preferably at least 0.5 mm and preferably at most 5 mm, preferably from 0.5 to 2.5 mm.

[0083] According to one characteristic, the receiving part is made of plastic and / or is metallic.

[0084] According to one characteristic, the interface part is made of plastic or is metallic, and the interface part is coupled to the porthole by being glued, preferably with a PU glue, or overmolded (preferably overmolded). In particular, the interface part comprises retaining means cooperating with the receiving part, in particular inside or outside the hole.

[0085] According to one characteristic, the receiving part is made of plastic or is metallic.

[0086] According to one characteristic, the interface part is made of plastic or is metallic. According to one characteristic, the receiving part and the interface part are made of plastic, or the receiving part and the interface part are metallic, or the receiving part is made of plastic while the interface part is metallic, or the receiving part is metallic while the interface part is made of plastic.

[0087] The plastic material of the receiving part and / or the interface part is in particular polyamide 66 (PA66), or PBT (polybutylene terephthalate), or ABS (acrylonitrile butadiene styrene), or AS A (acrylonitrile styrene acrylate), or ABS / PC (acrylonitrile butadiene styrene / polycarbonate). The plastic material may or may not be filled loaded. The metallic material of the receiving part and / or the interface part is, for example, aluminum or steel.

[0088] According to one characteristic, the material of the receiving part has a coefficient of thermal expansion adapted to that of the glazing (and / or to the filling element) and to that of the interface part of the infrared camera (to minimize the differences between the different materials). The material of the receiving part has in particular a coefficient of thermal expansion of between 0.8 and 1.2 times the coefficient of thermal expansion of the glass (and / or of the filling element).

[0089] According to another characteristic, the material of the interface part has in particular a coefficient of thermal expansion of between 1 and 15 times the coefficient of thermal expansion of the glass (the coefficient of thermal expansion of the glass being 8.9 x 106 / K).

[0090] According to another characteristic, the assembly comprises sealing means (to fluids) which (being added) are arranged (in interface) between the interface part and the receiving part, at the level of the interior of the through hole of the glazing (over the entire depth or part of the depth of the hole) and / or outside the hole, or which are constituted by the materials of the receiving part and of the interface part and by the assembly (although removable) of said receiving and interface parts according to an intimate connection which is sealed (to fluids). The sealing means can thus consist of the very materials of the receiving part and of the interface part, the materials being for example sufficiently soft and compressible that by being compressed against each other, sealing is obtained. Thus, the interface part which is fixed in a removable manner to the receiving part and therefore to the glazing is also fixed in a sealed manner to the glazing.Different variants of sealing means can be envisaged. The sealing means can be arranged between the receiving part and the interface part. The sealing means between the interface part and the receiving part can be made of rubber or EPDM (ethylene-propylene-diene monomer) or silicone. Advantageously, the sealing means extend over the entire interface section between the receiving part and the interface part.

[0091] The sealing means arranged between the interface part and the receiving part may, in a variant, be a seal, in particular arranged between the receiving part and the interface part (preferably arranged outside the hole), preferably toric, such as rubber or EPDM (ethylene-propylene-diene monomer), or alternatively, the sealing means may be a film or paste made of a waterproof material and removable assembly, in particular when the interface part is fixed by screwing (this film or paste being between the receiving part and the interface part, preferably inside the hole), in particular made of a non-stick (and waterproof) material such as polytetrafluoroethylene (PTFE or also called Teflon®). Advantageously, the sealing means extend across the entire section between the interface part and the receiving part.

[0092] When the hole is a notch, additional sealing can be provided by a seal placed between the glazing and the frame of the vehicle in which the glazing is mounted.

[0093] According to one characteristic, the glazing is laminated, the hole passing through the entire thickness of the laminated glazing.

[0094] According to one characteristic, the assembly comprises means for adjusting the depth of the observation porthole in the hole, in particular these adjustment means are integral with the interface part or are removably attached between the interface part and the receiving part. The adjustment means form, for example, compressible washers, an assembly of washers of variable thicknesses. In addition, the interface part and the receiving part may comprise guide means (of the male-female type such as a groove and a rib) to facilitate the mounting of the interface part and therefore of the infrared camera.

[0095] The invention also relates to a aforementioned assembly of the invention and adjacent to the through hole and behind the glazing, a visible camera whose visible radiation passes through said at least one glass sheet of the glazing and / or a LIDAR or a camera receiving near infrared radiation of wavelength in a range from 0.7 pm to 5 pm, preferably from 0.7 pm to 2.5 pm, which will be arranged behind a window transparent to near infrared radiation.The invention also relates to a aforementioned assembly of the invention, the glazing comprising, preferably in the vicinity of the through hole, at least one window transparent in the visible and / or transparent to near infrared radiation in a wavelength range between 0.7 pm and 5 pm, said at least one window preferably being within a recess in a masking layer present in the glazing, in particular within a recess in all or part around the through hole in which the observation porthole is housed (in the far infrared), and optionally said at least one window being in a zone of the glazing chosen to be laminated, with a blind hole in a so-called internal glass sheet of the glazing, and preferably an insert made of material transparent to near infrared radiation in a wavelength range between 0.7 pm and 5 pm, being arranged in the blind hole while being bonded to the so-called F2 face of a so-called external glass sheet of the glazing.The aforementioned assembly may comprise a visible camera and / or a LIDAR or a camera receiving infrared radiation with a wavelength in a range from 0.7 pm to 5 pm, preferably from 0.7 pm to 2.5 pm, which will be or will be arranged behind. said window transparent in the visible and / or transparent to near infrared radiation.

[0096] The interface part (and the infrared camera) can be in a cover (plastic, metal etc.) for example fixed to a plate glued to the inner face (F4 if laminated) of the glazing by an adhesive (plate perforated at the right of the through hole). The cover can also be fixed in whole or in part to a pillar or to the roof of the vehicle. The plate is optional and the cover can be fixed differently. The cover and / or the plate can be masked by the opaque layer.

[0097] The invention also relates to a method for manufacturing a glazing unit of the invention, the method comprising a preliminary step of making a hole according to the thickness of the glazing unit (hole inside the glazing unit or at the edge of the glazing unit of the notch type), this hole being able to be obtained by cutting, and by cutting before or after lamination when the glazing unit is laminated, then a step of securing a receiving part of the invention in the hole, the receiving part being perforated (having a hollow body), having an internal section capable of housing a part of the interface part and comprising retaining means for fixing the interface part. The method according to the invention comprises a step of removably mounting the interface part in the hole.

[0098] The invention also relates to a method for mounting or dismounting the glazing, characterized in that the infrared camera is mounted or dismounted in a removable manner by mounting or dismounting in a removable manner the interface part relative to the (perforated) part receiving the through hole of the glazing, in particular by clipping-unclipping or by a quarter-turn locking system.

[0099] The invention also relates to a vehicle comprising the aforementioned assembly of the invention, the vehicle being in particular a road or rail vehicle, in particular a car having a driving assistance system, a semi-autonomous or autonomous car. The vehicle glazing of the invention is in particular a windshield.

[0100] The invention relates in one embodiment to a kit in the form of an interface part designed to be mounted on an infrared camera, in particular on a lens body and / or a sensor housing of said camera, - camera operating in a wavelength range from 5 to 20 pm in particular between 8 and 14 pm - in a receiving part already mounted in a glazing or forming part of the kit, the interface part and the receiving part being characterized by the interface part and the receiving part of the aforementioned assembly of the invention.

[0101] Finally, the invention relates to a part of the glazed assembly as already described (before assembly with the interface part). The invention thus proposes a glazed assembly comprising: - vehicle glazing (preferably laminated), in particular a windshield (preferably laminated), comprising at least one sheet of glass, at least one through hole in the sheet of glass

[0102] - a receiving part which has a hollow body and which is mounted in the hole through, capable of removably housing an interface part comprising an integration part in the through hole and housing an observation porthole, and interface part extending beyond the through hole, intended to be towards the interior environment, capable of connecting the glazing to an infrared camera with a working wavelength in a range of 5 to 20pm, in particular of connecting the glazing to a lens body and / or to an infrared sensor housing of the camera.

[0103] The present invention is now described using examples which are solely illustrative and not limiting of the scope of the invention, and from the attached schematic illustrations, in which: - [Fig.l] is a partial sectional view of an assembly according to the invention comprising a vehicle glazing with a hole, a reception part housed in a through hole of the glazing, an interface part with an observation porthole which is transparent to far infrared radiation and which is arranged at the through hole of the glazing to open onto the external environment, an infrared camera fixed to the glazing via the interface part. - [Fig.2] illustrates a schematic exploded perspective view of the infrared camera of [Fig.l], the interface part and the glazing reception part. - [[Fig.3]] is a variant in which the interface part is not in alignment with the viewing port, the camera lens body is not in alignment with the viewing port. - [Fig.4] is an alternative embodiment of the through hole of the glazing which forms a notch from the edge of the glazing and not a closed hole at a distance from the edge of the glazing. - [[Fig.5]] is a sectional view of another example of embodiment of a glazing according to the invention comprising side by side the infrared camera and a camera operating in the visible or a LIDAR operating in the near infrared.

[0104] The figures which are schematic are not to scale.

[0105] The assembly 1' of the invention illustrated in the figures is for example intended for an application of road (or railway) vehicle windshield.

[0106] The assembly 1' comprises a glazing 1 provided with a through hole 10, a receiving part 4 in the through hole and an interface part 3 in connection with an infrared camera 2 operating in the far infrared between 5 and 20 pm, in particular between 8 and 14 pm, the infrared camera 2 being installed behind the glazing. For a windshield, the through hole is preferably located in the upper part of the glazing and even in the rearview mirror area.

[0107] In the embodiment of [Fig. 5], in addition to the infrared camera 2 fixed as in [Fig. 1], there is arranged adjacent to the infrared camera 2 a camera operating in the visible or a LIDAR operating in the near infrared and being placed behind the glass of the glazing which is transparent to visible wavelengths.

[0108] The infrared camera 2 comprises a housing 20 containing an infrared sensor and a lens body 21. The lens body 21 is connected to the housing by one of its ends and has, opposite the housing, a so-called observation end 22 provided in the usual manner with an observation lens.

[0109] According to the invention, the interface part 3 serves to directly fix the infrared camera 2 to the glazing 1 and to act as a transparent window through the glazing for wavelengths in the infrared via an observation porthole 30. The interface part 3 is capable of being mounted in a through hole 10 of the glazing. The hole 10 passes through the entire thickness of the glazing. This hole is preferably at the upper edge of the windshield and in particular central.

[0110] The interface part 3 makes it possible, according to the invention, to dispense with the glass of the glazing to ensure the vision of the infrared camera 2 at a working wavelength in the far infrared wavelength range. The interface part 3 thus has the observation porthole 30 which opens onto the external environment of the glazing 1 and which is transparent to far infrared radiation (at least at the working wavelength). Thus, the glass of the glazing which is not transparent to infrared wavelengths, in particular to far infrared (between 5 pm and 20 pm), being perforated does not act as a barrier and does not hinder the operation of the infrared camera 2, and the interface part 3 has a window embedded in the hole 10 passing through the glazing. Glazing is simplified because there is no specific material to incorporate into the glazing for its transparency to infrared wavelengths, particularly far infrared.This is the interface part 3 which integrates an infrared transparent window through the glazing and which is fixed to the glazing.

[0111] The interface part 3 is removably mounted in the through hole 10 of the glazing 1. This makes it possible in particular to manufacture the glazing independently of the infrared camera, to adapt to any type of infrared camera and to allow easy maintenance. The glazing 1, more particularly the through hole 10 of the glazing, comprises a receiving part 4 which is able to cooperate with the interface part 3 in order to ensure a removable (and fluid-tight) mounting on the surface of the glazing 1. The receiving part 4 is integrated in a fluid-tight manner into the through hole 10 of the glazing 1. The receiving part 4 is hollow and through-hole. The interface part 3 is fixed in a removably and watertight manner on the receiving part 4, to fix the infrared camera to the glazing 1.

[0112] The interface part 3 is adapted to the lens body 21 of the infrared camera 2. The interface part 3 is removable from the lens body 21 of the infrared camera 2 and adapts to existing infrared cameras. For this removability, there may be several models of interface parts 3 to adapt to different models of infrared camera 2. The interface part 3 will be described in more detail later. The lens body is for example a cylindrical hollow body of constant or variable diameter (stepped etc.). The housing may be of parallelepiped shape.

[0113] The glazing 1 ([Fig.l]) is for example a laminated glazing. The glazing 1 can be curved. It comprises: - an external glass sheet 11, with an external main face called face F1 intended to face the external environment and an opposite main face called face F2, the external glass sheet 11 being 2.1 mm thick or even 1.6 mm or even less, - an internal glass sheet 12 (or alternatively a plastic sheet) (the glass may be tinted) and 2.1 mm thick or even 1.6 mm or even less, with a main internal face called face F4 intended to be on the passenger compartment side and a face called face F3 opposite, - the two sheets of glass 11 and 12 being bonded to each other by an interlayer made of polymer material, in particular thermoplastic 13, for example made of PVB, for example clear, and of submillimetric thickness such as 0.76 mm or 0.81 mm thick, single-layer or multi-layer and which may be acoustic.

[0114] The glazing 1 may comprise on one of its faces F1 to F4 a coating or a masking layer (camouflage) 14 which is opaque, for example black in color, such as a layer of enamel or black lacquer, which extends around the hole 10 in order to hide the infrared camera 2.

[0115] The through hole 10 extends along the thickness of the glazing between the outer face F1 and the inner face F4. The hole 10 is delimited by an internal wall (of height corresponding to the thickness of the glazing). The hole 10 can be arranged in an interior zone of the glazing (at a distance from the edge of the glazing) as illustrated in [Fig.l]. Alternatively, the hole 10 can be at the edge of the glazing by forming a notch in the edge and the thickness of the glazing as illustrated in [Fig.4]. The hole 10 is adapted in geometry and dimensions to the receiving part 4. The hole 10 was made in the glazing 1 by cutting. This cutting can be made in a flat or curved glazing, before or after lamination when the glazing is laminated.

[0116] The glazing 1 comprises at the hole 10 the receiving part 4 which has been added after cutting the hole. The receiving part 4 is hollow and passes through to house a part of the interface part 3. The receiving part 4 is used for the removable fixing of the interface part 3. The receiving part 4 has a mechanical cooperation function with the interface part 3.

[0117] The receiving part 4 comprises a hollow body 40 which extends at least along the depth of the hole 10. The receiving part 4 is fixed at least to the wall of the hole 10. The receiving part 4 may further comprise a shoulder 41 which projects towards the outside of the body 40 as in the example of [Fig. 1]. The receiving part 4 is preferably made integral with the glazing further via this shoulder 41 which is pressed against the internal glass sheet 12 of the glazing (against the face F4) and at the periphery of the hole 10. The peripheral shoulder 41 extends in a plane perpendicular to the extension of the hollow body 40 and projects from the outer face of said body. Preferably, the receiving part 4 does not extend over the outer glass sheet 11, in particular is flush with the face FL. In the example of [Fig. 4], the receiving part 4 is integral with a filling element 4' which is inserted between the wall of the hole 10 and said receiving part 4.In the case of the presence of the filling element 4', the receiving part 4 can (via a shoulder) be integral with or pressed against the filling element 4' (extending as far as the external sheet 11 or not extending beyond said filling element 4').

[0118] The inner section of the hollow body 40 of the receiving part 4 is adapted in shape and dimensions to the section of a part 31 of the interface part 3, which houses the observation porthole 30; the part 31 is called the integration part and is introduced inside the hole 10 in the body 40 of the receiving part 4. The hollow body 40 of the receiving part 4 has an inner section which is circumscribed to the section of the integration part 31 of the interface part 3. The receiving part 4 of the glazing is adapted to the interface part 3; it is adapted in geometry and in fixing.

[0119] The receiving part 4 is made of plastic and / or a metallic material. The plastic may be filled or unfilled. The fillers in the plastic will be chosen according to the desired functional characteristics such as mechanical strength, ultraviolet aging, heat resistance, etc. The plastic may be a thermoplastic. The plastic may be flexible (i.e. having a hardness between 60 and 90 Shore A). The plastic is in particular chosen from the following materials: polyamide (PA) such as unfilled PA66, or PBT (polybutylene terephthalate), or ABS (acrylonitrile butadiene styrene), or AS A (acrylonitrile styrene acrylate), or ABS / PC (acrylonitrile butadiene styrene / polycarbonate). The metallic material is for example made of aluminum or sintered steel.The material of the receiving part 4 has a coefficient of thermal expansion adapted to that of the glazing 1 and to that of the interface part 3 to minimize the differences between the different materials. The material of the . reception room 4 has, for example, a coefficient of thermal expansion of between 0.8 and 1.2 times the coefficient of thermal expansion of glass.

[0120] The receiving part 4 is fixed (in a fluid-tight manner) to the glazing by being glued or overmolded or force-mounted. For the gluing, the glue is for example polyurethane (PU). In the case of a connection to the filling element 4', the receiving part 4 is made integral by being overmolded or glued or force-mounted (with a seal between the receiving part 4 and the filling element 4').

[0121] The receiving part 4 comprises fixing zones 42 for the removable fixing of the interface part 3. The fixing zones 42 of the receiving part 4 are arranged so as to be able to be opposite the hole 10 (inside the hole) and / or outside the hole 10. In particular, the fixing zones of the receiving part 4 can be arranged in the wall of the hollow body 40 and / or in the peripheral shoulder 41 and / or in additional parts of the receiving part 4. By way of non-limiting example illustrated schematically in [Fig.l], the fixing zones 42 of the receiving part 4 for the fixing of the interface part 3, form tabs 42 projecting from the shoulder 4L Here, the shoulder 41 is circular and the fixing tabs 42 extend radially outwards while being in a plane parallel to that of the shoulder.

[0122] The receiving part 4 may be metallic and / or made of plastic. The plastic material is notably chosen from the following materials: polyamide (PA) such as unfilled PA66, or PBT or ABS or ASA or ABS / PC. The metallic material is for example made of aluminum or sintered steel.

[0123] The interface part 3 comprises the observation porthole 30 which is transparent to infrared radiation, the integration part 31 which integrates the observation porthole 30 and which is intended to be housed in the receiving part 4 of the glazing, a spacer part 32 which connects the observation end 22 of the lens body 21 of the infrared camera, to the glazing 1, and a fixing part 33 which is adapted to cooperate with the fixing zones 42 of the receiving part 4. In addition, the interface part 3, in particular the spacer part 30 at its end facing the side of the lens body 21, comprises an attachment part 34 which is fixed around the lens body 21 preferably in a removably manner to the lens body 21 of the infrared camera.In one embodiment, the interface part 3, in particular the integration part 31 and the spacer part 32, are designed to support the weight of the infrared camera 2 when the interface part 3 is fixed to the glazing 1.

[0124] The attachment portion 34 of the interface piece 3 is designed to fit the lens body 21 of the infrared camera, in geometry and in fixing. The attachment portion 34 is in particular annular, the infrared camera lens body being generally circular. The attachment portion 34 forms for example a ring fixing by screwing onto the lens body, for example near the observation end 22 of the infrared camera.

[0125] The spacer part 32 has for example a shape adapted to arrange the axis of the lens body 21 of the infrared camera in a horizontal plane in the position of use in the vehicle while the glazing 1 is inclined ([Fig.l]), while the observation porthole 30 is arranged in an inclined plane parallel to the glazing 1. The integration part 31 forms the termination of the spacer part 32. The integration part 31 is arranged inside the hollow body 40 of the reception part 4 in a fluid-tight manner with at the interface sealing means 6, for example of the joint paste type such as silicone.

[0126] The observation porthole 30 is made of a material transparent to infrared radiation, in the far infrared between 5 pm and 20 pm, in particular between 8 and 14 pm. The observation porthole 30 does not protrude relative to the outer face F1 of the glazing. Preferably, the observation porthole 30 is flush with the outer face F1 of the glazing without protruding. The observation porthole 30 has a thickness which preferably does not exceed 10 mm. In particular, the observation porthole 30 and the integration part 31 have a thickness equal to that of the glazing (monolithic or laminated), or even less than the thickness of the monolithic or laminated glazing), the thickness of the glazing (monolithic or laminated) preferably being at most 10 mm or 6 mm or even 4 mm.

[0127] The material of the observation porthole 30 may be formed by a material comprising zinc sulfide (ZnS), and / or zinc selenide (ZnSe) and / or barium fluoride (BaF2) and / or germanium (Ge) and / or silicon (Si).

[0128] The material of the observation porthole 30, transparent to infrared radiation, advantageously has a light absorption coefficient of less than 0.5 cm1, preferably less than 0.1 cm', for a light ray having at least one wavelength chosen between 5 pm and 20 pm inclusive, preferably between 8 pm and 14 pm inclusive. Thus, the observation porthole 30 specifically allows the transmission of light rays from an infrared camera. The material of the observation porthole 30 may have a light transmission of at least 50%, and in particular at least 70%, for a light ray having a wavelength of between 8 pm and 14 pm.

[0129] The material of the observation porthole 30 comprises for example: - a compound comprising a multispectral zinc sulfide, in particular obtained after hot isostatic pressing, in particular comprising selenium, such as ZnSxSei_ x where x is greater than or equal to 0.97 inclusive and less than 1 inclusive, in particular multispectral ZnS, and / or - a compound comprising a zinc selenide, in particular ZnSe, in particular including sulfur, such as ZnSeSi y where y is preferably greater than or equal to 0.97 inclusive and less than 1 inclusive, and / or - a compound comprising a barium fluoride, in particular comprising calcium and / or strontium, in particular Ba,jCa.SijFo where i+j are strictly less than 1, and i and j are preferably each greater than 0.25 inclusive, or Ba, .CaL^where i is strictly less than 1 and preferably greater than 0.25 inclusive, in particular BaF2.

[0130] The observation porthole 30 may comprise a mechanical and / or chemical protection layer on the outer face facing the external environment. The mechanical and / or chemical protection layer is a coating chosen from a layer comprising in particular a zinc sulfide, a diamond layer or a DLC layer (from the English acronym “Diamond like Carbon”).

[0131] The spacer part 32, to ensure that the integration part 31 is held in place in the receiving part 4, is fixed by its fixing part 33 to the receiving part 4 of the glazing 1. The fixing part 33 of the interface part 3 is integral with the integration part 31. The fixing part 33 of the interface part 3 is illustrated in [Fig.l] as being outside the through hole 10 in the mounted position of the integration part 31 in the receiving part 4. The fixing part 33 can take various shapes and geometries depending on the fixing arrangement and the method of fixing with the receiving part 4.

[0132] The receiving part 4 and the interface part 3 comprise retaining means 5 cooperating with each other, respectively at the level of the fixing zones 42 of the receiving part 4 and the fixing part 33 of the interface part, for the assembly of the interface part 3 to the receiving part 4 of the glazing. The retaining means 5 may be made of the same material or not as that of each of the respective receiving parts 4 and interface 3. These retaining means 5 may be integrated into the fixing zones 42 and into the fixing part 33 in a single piece or may be attached in a removable manner to cooperate with the latter. As non-limiting examples as integrated (integral) retaining means of the receiving parts 4 and interface 3, the retaining means are clip-on fixing means or an integrated bayonet and quarter-turn system.By way of example, the fixing part 33 of the interface part 3 comprises fixing lugs which cooperate with the fixing lugs 42 of the receiving part 4 by clipping using spring steel clips 5 integrated into the fixing lugs 33. Clipping means the existence of elastic male fixing members intended to engage in female receiving forms. Alternatively, the added retaining means 5 are screws 5. which are screwed to the fixing lugs 42 and 33 preferably using a thread lock to maintain the fixing over time despite the vibrations of the vehicle.

[0133] In the embodiment of [Fig. 3], the spacer portion 32 of the interface part has another shape (for example, here bent) in order to arrange the camera housing 20 and the lens body 21 in a plane parallel to the plane of the glazing (or at an angle), while allowing the integration portion 31 to be arranged with the observation porthole 30 in the through-hole 10 of the glazing. In order to obtain optical continuity between the lens body 21 and the observation porthole 30, the interior of the spacer portion 32 comprises at least one mirror 7 (IR).

[0134] Finally, in the embodiment of the glazing 1 of [Fig. 4], the hole 10 forms a notch at the edge of the glazing and is therefore open-perimeter. In a first case not shown, the receiving part 4 which is hollow has a very suitable shape by comprising an external section which matches the geometry of the section of the notch 10. In a second case ([Fig. 4]), the receiving part 4 has a section different from the section of the hole 10 (it does not have an external section which matches the section of the notch), the filling element 4' is then interposed between the receiving part 4 and the wall of the hole 10 of the glazing. In both cases, the interface part 3 is removably fixed in the receiving part 4 as described above. The filling element 4' is preferably also coplanar with the external face F1 of the glazing.The filling element 4' is integral with the glass of the glazing 1 and the receiving part 4 is integral with the filling element 4'. The filling element 4' is preferably glued or overmolded to the glass. The receiving part 4 is preferably glued or overmolded to the filling element 4'. The filling element 4' is for example made of plastic, in particular PC (polycarbonate), PMMA, etc. The sealing (to fluids) between the interface part 3 and the receiving part 4 is as already described above. The sealing between the receiving part 4 and the filling element 4' is obtained for example by assembly (watertight glue or overmolding, or force-fit assembly and sealed by the composition of the materials).

[0135] Finally, in one embodiment ([Fig.5]), the glazing 1 may comprise, next to the infrared camera 2 (in a vertically or horizontally aligned or offset manner), a camera in the visible range 8 and / or a LIDAR. The glazing 1 comprises, at a distance from the hole 10, at least one window 14' in the masking layer 14, which is transparent in the visible range and / or transparent to near-infrared radiation in a wavelength range between 0.7 pm and 5 pm. The window 14' is, for example, a recess in the masking layer 14 with the thickness of the glazing being transparent in the visible range. The window 14', in particular for transparency to the near-infrared range, comprises a blind hole 15 made in the thickness of the inner glass sheet 12 and possibly in the interlayer 13, the outer glass sheet 11 being transparent to the near infrared and consisting for example of extra-clear glass, and the glazing may comprise an insert 16 made of a material transparent to near infrared radiation in a wavelength range between 0.7 pm and 5 pm, the insert 16 being arranged in the blind hole 15 and being bonded to the face F2 of the outer glass sheet 11 via an adhesive (not illustrated) such as an OCA adhesive (for "Optical Clear Adhesive" in English), or a thermoplastic EVA adhesive (EVA (for ethylene-vinyl-acetate in English or ethylene-vinyl acetate) from a sheet, etc.) or via a (thin) layer based on PVB (coating, etc.) or acrylate or silicone. The adhesive may be thermoplastic or made of a crosslinked material. A masking layer (not shown) transparent in the near infrared can be arranged on the insert 16, on the side of the bonding layer.Several embodiments of near-infrared transparent windows for arranging a LIDAR in a windshield are also described in patent application WO2023118710.

Claims

Claims

1. Assembly (1') comprising: - a vehicle glazing (1), in particular a windshield, comprising at least one glass sheet (11), at least one through-hole (10) in the glass sheet - a receiving part (4) which has a hollow body (40) and which is mounted in the through-hole (10), - an observation porthole (30) which is transparent to a wavelength in a range from 5 to 20 pm, porthole in the through-hole and housed in the hollow body, characterized in that the assembly comprises an interface part (3) comprising said observation porthole (30), the interface part (3) being removably attached to the receiving part (4) and the interface part (3) extends beyond the through-hole and is adapted to be attached to an infrared camera.

2. Assembly according to claim 1 characterized in that the interface part (3) comprises a spacer part (32) capable of connecting the camera, in particular capable of connecting a lens body (21) of the camera, to the receiving part (4).

3. Assembly according to claim 2 characterized in that the interface part (3) comprises an integration part (31) which is located at the end of said spacer part (32), and which is housed in the reception part (4).

4. Assembly according to one of claims 2 or 3 characterized in that the spacer part (32) has a shape adapted to cooperate with the receiving part (4) so ​​that the observation porthole (30) is parallel to the glazing (1), in particular flush with the so-called external face (F1) of the glazing, intended to be turned towards the external environment, and / or in that the spacer part, on at least one portion, faces said through hole and comprises a portion offset from said through hole

5. Assembly according to one of the preceding claims, characterized in that the interface part (3) is adapted to be removably attached to an infrared camera, in particular to a lens body (21) of the camera, to an infrared sensor housing of the camera or to both the lens body and the housing.

6. Assembly according to any one of the preceding claims, characterized in that the interface part (3) is adapted to be mechanically fixed in a removable manner to a housing and / or to a lens body (21) of the infrared camera, in particular the interface part (3) comprises an attachment part (34), fixable in whole or in part on the periphery of the housing and / or of the lens body (21).

7. Assembly according to any one of the preceding claims, characterized in that the interface part (3) is adapted to be removably fixed to a lens body (21) of the infrared camera, in particular the interface part (3) comprises an attachment part (34), in particular of annular shape, fixable in whole or in part on the periphery of the lens body (21), preferably by screwing or clipping.

8. Assembly according to any one of the preceding claims, characterized in that the interface part (3) comprises a fixing part (33) which is adapted to cooperate with fixing zones (42) with which the receiving part (4) is provided.

9. Assembly according to any one of the preceding claims, characterized in that it comprises retaining means (5) for removably fixing the interface part (3) in the receiving part (4), the retaining means (5) being integrated in a single piece into the interface part and the receiving part and / or the retaining means (5) being removably attached to cooperate with a fixing part (33) provided on the outside of the interface part and with fixing zones (42) provided in the receiving part (4), in particular the retaining means (5) being clipping elements or screws or a bayonet and quarter-turn system.

10. Assembly according to any one of the preceding claims, characterized in that the interface part and the receiving part (4) cooperate by screwing, in particular the receiving part (4) comprising a thread while the interface part (3) comprises a thread, in particular the thread and the thread being arranged on parts of the receiving part and the interface part, which are inside the hole (10), and / or outside the hole and on the side of a so-called inner face of the glazing or in that the receiving part (4) and the interface part (3) cooperate by clipping, in particular the receiving part (4) comprising female shapes (40) while that the interface part (3) comprises male clipping shapes, in particular male shapes made of spring steel, capable of cooperating by engagement in the female shapes, clipping inside the hole, and / or outside the hole and on the side of a so-called interior face of the glazing.

11. Assembly according to any one of the preceding claims, characterized in that the receiving part (4) is mounted in the through hole (10) by gluing or by overmolding or by force.

12. Assembly according to any one of the preceding claims, characterized in that the receiving part (4) is mounted in the through hole (10) forming a notch, in particular a filling element (4'), in particular a plastic and / or metal part, is inserted between the wall of the through hole and said receiving part and mounted in the hole, in particular by gluing or by overmolding, or by force, and the receiving part is mounted in the filling element, in particular by gluing or by overmolding or by force.

13. Assembly according to any one of the preceding claims, characterized in that the receiving part (4) comprises a shoulder (41) applied against the inner face of the glazing and / or a filling element in the hole inserted between the hole and the receiving part, and fixing zones (42) extending projecting from the shoulder (41) and with which cooperate a fixing part (33) of the interface part (3) which preferably extends radially relative to a lens body (21) of the infrared camera.

14. Assembly according to any one of the preceding claims, characterized in that the interface part (3) is made of plastic and / or is metallic and the receiving part (4) is made of plastic and / or is metallic.

15. Assembly according to any one of the preceding claims, characterized in that it comprises sealing means (6) which are arranged between the interface part (3) and the receiving part (4) at the level of the interior of the through hole (10) and / or outside the hole, or which are constituted by the materials of the receiving part (4) and of the interface part (3) and by the assembly of said receiving and interface parts.

16. Assembly according to any one of the preceding claims, characterized in that the glazing (1) is laminated, the hole (10) passing through the entire thickness of the laminated glazing.

17. Assembly according to any one of the preceding claims, characterized in that the glazing (1) comprises, preferably in the vicinity of the through hole (10), at least one window (14') transparent in the visible and / or transparent to near infrared radiation in a wavelength range between 0.7 pm and 5 pm, said at least one window (14') preferably being within a recess in a masking layer (14) present in the glazing, in particular within a recess in all or part around the through hole (10) in which the observation porthole (30) is housed, and optionally said at least one window (14') being in a zone of the glazing chosen to be laminated, with a blind hole (15) in a so-called internal glass sheet (12) of the glazing, and preferably an insert (16) made of material transparent to near infrared radiation in a wavelength range between 0.7 pm and 5 pm,being placed in the blind hole (15) while being glued to the face called F2 of a sheet of glass called external (11) of the glazing.,

18. Vehicle comprising the assembly according to any one of the preceding claims, the vehicle being in particular road or rail, in particular a car having a driving assistance system, a semi-autonomous or autonomous car.

19. Kit in the form of an interface part (3) designed to be mounted on an infrared camera (2), in particular on a lens body and / or an infrared sensor housing of said camera, and to be removably mounted in a receiving part (4) already mounted in a vehicle window (1) or forming part of the kit, the interface part (3) and the receiving part (4) being characterized by the interface part (3) and the receiving part (4) of the assembly according to any one of claims 1 to 17.

20. Glazed sub-assembly, part of the assembly according to any one of claims 1 to 17, comprising: - a vehicle glazing (1), in particular a windshield, comprising at least one sheet of glass (11), at least one through hole (10) in the sheet of glass - a receiving part (4) which has a hollow body (40) and which is mounted in the through hole (10), capable of removably housing an interface part (3) comprising an integration part in the through hole and housing an observation porthole, interface part (3) extending beyond the through hole, intended to be towards the interior environment, capable of connecting the glazing to an infrared camera with a working wavelength in a range of 5 to 20 pm.

Images