System comprising vehicle glazing and a prism

Abstract

The invention relates to a glazing system comprising vehicle glazing (1000) comprising an optical device comprising a first prism (41) attached to the interior surface (12) of the glazing, the first entrance face (43) of the first prism (41) being arranged to receive a near-infrared LiDAR emitted beam (70). According to the invention, the optical device comprises a second prismatic optical device (42), the first and second prismatic optical devices (42) being suitable for increasing the vertical angular aperture of the external field of view (FOV2) of the LiDAR beam outside the vehicle and for obtaining a negative angle of attack i' of the median pointing direction of the LiDAR beam relative to the horizontal axis upstream of the first entrance face.

Description

Title of the invention: System comprising vehicle glazing and a prism The present invention generally relates to the field of lidars placed behind inclined vehicle glazing. Laser remote sensing (LIDAR or lidar), an acronym for the English expression "light detection and ranging" or "laser image detection and ranging" (or in French "detection and estimation of distance by light" or "by laser") is being considered for road vehicles, particularly autonomous ones, to improve safety. Recently, it has been proposed to place a lidar detection system behind the windshield of a road vehicle, in order to protect the lidar from external conditions. However, this arrangement of the lidar behind a windshield, particularly a sloped windshield, poses several difficulties. The lidar is generally installed in the upper part of the passenger compartment (high area of the windshield) so that the beams emitted and received by the lidar pass through the glazing in an area close to the upper longitudinal edge of the glazing. On the one hand, the lidar has a large footprint and must be positioned so as not to obstruct the driver's vision. On the other hand, the lidar generates a near-infrared emission beam in a field of view with a vertical and horizontal angular aperture.Projecting the emission beam onto the glazing requires reserving an area of the glazing for the transmission of this near-infrared emission beam (known as the near-infrared transmission window). This reserved area is preferably as small as possible, particularly in the vertical direction, so as not to obstruct vision through the glazing. In practice, the LIDAR manufacturer expects the beam emitted by the lidar to have a given vertical field of view around a median pointing direction. Document WO2023 / 274854 discloses a glazing comprising a lidar oriented towards the inner face of the inclined glazing of a road vehicle and a prism placed on the inner face of the glazing, to increase the vertical opening of the field of view of the lidar outside the vehicle. However, this system does not make it possible to easily orient the pointing direction of the lidar, which is limited by the prism. In addition, this system does not make it possible to reduce the size of the lidar inside the passenger compartment. An aim of the invention is to propose a glazing system making it possible both to increase the vertical angular opening of the field of view of the lidar outside the vehicle and to reduce the size of the lidar inside the vehicle. In order to overcome the aforementioned drawback of the state of the art, the present invention proposes a glazing system comprising vehicle glazing, in particular road glazing, the glazing, in particular windshield, in particular curved, comprising: a first sheet of glass (in particular clear) intended to form the exterior glazing with a first external main face (called face F1) and a second main face (called face F2) facing the passenger compartment, and, when the glazing is laminated (preferred embodiment), comprising a second sheet of glass intended to form the interior glazing with a third main face oriented (called face F3) towards the second main face and a fourth main face (called face F4) oriented towards the passenger compartment, and a lamination interlayer made of polymer material (in particular polyvinyl butyral PVB or ethylene / vinyl acetate copolymer EVA or thermoplastic polyurethane TPU) arranged between the second internal main face and the third main face, the glazing being intended to form a positive inclination angle 0 and less than 90 degrees, and even at most 60 or 50 degrees in particular for a motor vehicle windshield, with a horizontal axis (X) in the vehicle, the inclination angle going from the glazing to the horizontal axis, in particular the glazing having an upper longitudinal edge and a lower longitudinal edge. The glazing has a near-infrared transmission window (preferably peripheral) at a working wavelength LB1 in a near-infrared range, in particular a range from 800nm to 1800nm, in particular from 850nm to 1600nm, in particular 905±30nm and / or 1350±10nm and / or 1550±30nm, the glazing being capable of receiving an emission beam at said working wavelength from a lidar detection system intended to be arranged in the passenger compartment of the vehicle, the emission beam having, in a reference plane which is a lateral section plane of the glazing (comprising said horizontal axis X), a median pointing direction and extending over an internal field of view of internal vertical angular aperture FOV1 determined - inside the vehicle (upstream of the glazing), the reference plane comprising a normal to the glazing and a vertical axis (Z) in the vehicle normal to said axis horizontal),the emission beam at the exit of the glazing having an external field of view with external vertical angular opening FOV2, The system comprises in the near-infrared transmission window, an optical device linked to the glazing, and transparent to the working wavelength, which comprises a first optical device which is a first prism, having a first input face arranged to receive the near-infrared emission beam and in particular a first output face (fictitious if monobloc of two prisms), of refractive index n1 at the working wavelength and forming a first angle a1 with the vertical axis (Z) in the reference plane., The optical device comprises a second prismatic optical device (in particular a second prism or multiprismatic element, preferably made of film or even a coating) which has a refractive index n2 at the working wavelength with n1 greater than or equal to n2, with a second exit face - (external or) oriented towards the outside of the glazing - forming a second angle a2 with the vertical axis (Z) in the reference plane (and) distinct from the first angle and in particular with a second entry face (fictitious if monobloc integrating first and second prisms), second prismatic optical device opposite and (at least) in optical contact with the first prism (or even forming a monobloc integrating first and second prisms), in particular second external exit face in particular under flush, flush or projecting from the first main face). The first prism may have another face (opposite the first entry face) forming a first base (non-functional). The second prism may have another face (opposite the second exit face) forming a second base (non-functional) or the prismatic element may have a plurality of prisms (microprisms) each with a second exit face and another face forming a second base (non-functional, opposite the second exit face). The first prism and the second prismatic optical device are arranged and configured to transmit by refraction the emission beam from the first input face to the second output face (successively through the first input face, the first output face, in particular a connecting or fictitious face, the glazing or a support or an inter-prism connecting means or the optical device being a single-piece integrating the first prism and the second prism, the second input face, possibly a connecting or fictitious face, and the second output face) so that the external emission beam (having a variable external pointing direction) has an external field of view with a vertical angular aperture called external FOV2 at the output of the second output face greater than the vertical angular aperture called internal FOV1. The first and second angles a1, a2, preferably distinct from 0°, are such that the angle of attack i' of the median direction of pointing of the beam relative to the horizontal axis upstream of the first entry face is negative and at most - 0°, the angle of attack i' going from the horizontal axis to the median direction and that the exit angle i of the median direction of pointing of the beam relative to the horizontal axis at the exit of the second entry face is 0°±5°, (the exit angle going from the horizontal axis towards the median). The second prismatic optical device in combination with the first prism allows a negative i' angle with a near horizontal i angle while increasing the output FOV. In this text, concerning a refractive index (at the working wavelength) or the (first, second) angles or the FOV, a numerical index or a normal number (m or n1 etc.) is used indifferently; for degrees, deg. or the symbol ° is used indifferently; the term film or sheet is used indifferently, which designates a self-supporting element (an interlayer sheet becomes an adhesive layer after lamination). The term layer includes a sheet or a coating. In this text, optical contact means a continuity of matter, without a gas or vacuum layer. For simplicity, the first input face and the second output face are preferably planar (and even the first base and the second base opposite). The first output face and / or the second input face may be of geometric shape, in particular rectangular or trapezoidal. The glazing can be monolithic and comprises a sheet of glass or polymer (PMMA (polymethyl methacrylate, or polycarbonate (PC) or mineral). The glazing is preferably laminated. Advantageously, the first and second angles (ai a2) are such that the internal vertical angular opening FOV1 is at most equal to the minimum internal vertical angular opening FOVI min +5° and even FOVI min +2°. The first and second angles (ai a2) are notably such that the difference between FOV2 and FOV1 is at least 5° and even at least 10°. The first and second angles (ai ai) are in particular such that the negative angle of attack i' is at most - 0° +20° or even at most - 0° +10 or even - 0°+5°. It is preferred that the first and / or second angle (a1, a2) be at least -0 degrees and preferably at most +60-0 degrees. It is preferred that the first angle be at most 15° or 10° or even 5° or negative and in particular at least - 0 degrees. It is preferred that the second angle be at most 10° or even 5° or negative and in particular at least - 0 degrees. The refractive indices n1 and / or n2 are preferably at least 1.4 and at most 1.65, for more material choices. The first prism has, for example, an optical refractive index n1 of 1.20 to 1.8, preferably at least 1.4 and at most 1.65, in particular 1.5±0.1. In particular, it is a glass, in particular extra-clear, or a plastic. The second prismatic optical device (prism or multiprismatic) has, for example, an optical refractive index n2 of 1.20 to 1.8, preferably at least 1.4 and at most 1.65, in particular 1.5±0.1. In particular, it is a glass, in particular extra-clear, or a plastic. In particular, the first prism and / or the second prismatic optical device is made of a material chosen from glass, in particular extra-clear glass, PC, PMMA, polyacrylate. The second optical device may be a second prism, the first and / or second prism comprising a part made of material chosen from PC, PMMA, preferably extra-clear glass, polyacrylate, and even made of material adhesive to glass or polymer (“OCA”: silicone, acrylate). In particular, the first and second prisms form a single block made of material chosen from preferably extra-clear glass, PC, PMMA, polyacrylate, which is in a particularly peripheral zone with a complete through-hole of the glazing, particularly laminated glazing. In an example, the second output face, in particular planar, forms a second angle (a2) equal to 0° (±2° or even ±1°) with the vertical axis in the reference plane and the first input face - forms a first angle (a1) distinct from 0° with the vertical axis in the reference plane and n1>n2. And / or the first input face, in particular planar, forms a first angle (cd) equal to 0° (±2° or even ±1°) with the vertical axis in the reference plane and the second output face, in particular planar, forms a second angle (a2) distinct from 0° with the vertical axis in the reference plane and n1-n2 less than 0.2. The optical device is preferably peripheral, near the upper longitudinal edge of the glazing, in particular the windshield, in particular in the central zone and even the enlarged zone of an opaque masking layer. The first input face is preferably oriented towards the upper longitudinal edge of the glazing - the opposite face or first base (non-functional) oriented towards the lower longitudinal edge of the glazing (and the lidar towards, or even on, the upper longitudinal edge)-. And the second input face is preferably oriented towards the lower longitudinal edge of the glazing -and the opposite face or second base (non-functional) oriented towards the upper longitudinal edge of the glazing-. The second optical device may be a second prism (macroprism) preferably having a height of at least 5 mm or preferably centimeters, the first and / or second prism is preferably of triangular section, possibly truncated. The first and second prisms (or second prismatic element) are in particular made of separate material (two pieces). In particular the first output face and the second input face are bonded by an adhesive (transparent to the working wavelength, and even forming camouflage) or are bonded, glued or in adhesive contact on either side of an intermediate element in particular at least the first sheet of glazing or the laminated glazing or a support in particular multifunctional. The first prism and the second prismatic optical device may be at least partially in a through hole of the glazing, in particular forming a notch, preferably laminated glazing, and are linked to a support, in particular multifunctional, transparent to the working wavelength or linked by an adhesive transparent to the working wavelength. The first prism comprises a face called the first base, for example planar, forming an edge with the first input face. For simplicity of supply, the first base preferably forms a third angle preferably ranging from 30° to 60° with the first output face, and / or the second prism comprises a face called the second base, for example planar, forming an edge with the second input face. The second base forms a fourth angle preferably from 30 to 60° with the second input face. We note hi the height of the first prism along the Z axis in the reference plane, h the length of the first prism along the X axis in the reference plane, LB the height of the second prism along the Z axis in the reference plane and l2 the length of the second prism 42 along the X axis in the reference plane. Preferably h1 and / or h2 is greater than or equal to 5mm, and even 1cm, and even at most 20cm or 15cm or 10cm. It may be less than LB. In particular, the second prismatic optical device extends beyond the edge (in particular the edge of the first output face with the first base) of the first prism in the direction of the lower longitudinal edge. In simple terms, the first prism and / or the second prism or the microprisms of the multiprisms are of triangular section. The optical device can be truncated to facilitate the integration of the optical device. A monobloc integrating the first and second prisms (triangular) can have a central part, in particular a straight part (parallel lateral faces) used to fix the monobloc to an orifice of a multifunctional support or perforated glazing. In particular, the section of the first and / or second prism is triangular and truncated (section with one, two or three bevels or chamfers, in the reference plane) - in a non-functional part of the first input face or second output face - and / or in the first or second base -adjacent part of the first or second output face-. One may prefer an edge (a sharp angle) between the first or second entry face and the first or second base rather than truncating the first or second entry face (chamfering the edge, at a custom-chosen angle). Instead of a second prism, for greater compactness, the second optical device may comprise (be) a multiprismatic element comprising a plurality of microprisms, preferably microprisms having a subcentimetric height, preferably less than 5mm or submillimetric in particular of at most 500pm or 200pm or 100pm, of at least 25pm. Each microprism has a second entry face, in particular planar, and a second exit face, in particular planar, forming an edge (preferably pointed, sharp angle or rounded) with the second entry face, and each with said second angle (all identical for example). The multiprismatic element is for example a partially textured polymer film or a substrate (glass, plastic) for example of submillimeter thickness (transparent to the working wavelength) with a partially structured coating (organic resin etc.) with said index n2, or the multiprismatic element is a (partially) structured coating directly on F1 or an external main face of a multi-function support. The multiprismatic element is for example a part (partially textured) formed by molding and fixed to the first main face of the glazing for example by an adhesive. The multiprismatic element (or the second prism) comprises for example a part, molded in an optically clear adhesive (or OCA for “Optically clear adhesive” in Anglo-Saxon terminology). In the case of a through hole in the glazing, the multiprismatic element or even the second prism, located in this area with the through hole, may be flush with the main external surface so as to form a continuous main external surface for the glazing or is recessed. Preferably, the multiprismatic element is formed from a (partially) textured coating, in particular printed (by embossing or by inkjet printing, by 3D printing for example) using a resin, on the first face F1 or on a mineral substrate, in particular glass or polymer, in particular which may be polyester, including PET, polymethyl methacrylate (PMMA) or polycarbonate (PC) bonded to the face F1. The first prism as the second prismatic optical device (second prism, multiprismatic element) as may have an antireflection layer at the working wavelength respectively on the first input face and on the second output face. In a particular aspect, all the microprisms of the multi-prismatic element form the same second angle a2 with respect to the vertical axis Z. All or part of the edges of the first prism and / or the second prismatic optical device (prism, microprisms) are sharp-angled. Alternatively, all or part of the edges of the first prism and / or the second prismatic optical device (prism, microprisms) are rounded. Alternatively, all or part of the edges of the first prism and / or the second prismatic optical device (prism, microprisms) are chamfered. The multiprismatic element is notably monodirectional or bidirectional. It can be structured in a single direction, the series of prisms (unidirectional), having edges parallel to each other notably along an axis of at most 10 or 5 degrees or 2 degrees with the longitudinal axis. It can be structured in at least two directions. The series of prisms (two-dimensional) has two-dimensional geometric shapes (polyhedra or pyramids). For example, the series of prisms form protruding or hollow pyramids arranged according to a two-dimensional network. In one embodiment, the first output face and the second input face are fictitious, the first prism and the second prismatic optical device which is a second prism form a single block (of refractive index n1) in a zone of the glazing (peripheral) preferably laminated provided with a complete through hole, partially in the complete through hole (in particular forming a notch), possibly projecting from the first face and / or the inner face of the glazing, in particular face F4 if laminated glazing. The lidar detection system is spaced from the first entry face by at most 15cm or 8cm or 5cm. In particular, the lidar detection system is fixed to the glazing and / or to a body and / or to a support, in particular multifunctional, or to a box or cover (individual or common to other sensors, to one or more cameras for example). The first prism can be on a main face of the glazing (face F2 or face F4) in particular laminated or the first prism (and even the second prismatic optical device) is in a through hole (complete) of the glazing in particular forming a notch. The notch can be dedicated, individual (for this lidar window) or is a common (larger) notch housing a support in particular multifunctional (multi-transmission windows, multi-sensors in particular). The support (transparent or opaque in the visible and / or at the working wavelength LB1), particularly multifunctional, can be fixed to the glazing (to the F4 or F2 face), for example using an adhesive, for example polyurethane. The support, in particular multifunctional, comprises one or more transmission windows in the visible, in the far infrared from 5pm to 20pm and even 8pm to 15pm, or even the medium infrared or another window in the near infrared, transmission window(s) in particular adjacent to the near infrared transmission window for the lidar (in an upper and even central part of the glazing, of the windshield, in particular in a reserve of the peripheral masking layer framing the glazing) and / or carries one or more functional elements such as sensors (rain detector etc.). The (multifunctional) support can be a plastic, particularly opaque, in particular for color continuity with the peripheral masking layer framing the glazing (the color difference is limited). It is opaque in mass, loaded with colorants, in particular black (loaded with carbon, etc.), or the support can be transparent and carry an opaque (black) layer with savings for transmission window(s). The (multifunctional) support is for example made of plastic (obtained by opaque, black injection) of polyamide 66 (PA66), or PBT (polybutylene terephthalate), or ABS (acrylonitrile butadiene styrene), or ASA (acrylonitrile styrene acrylate), or ABS / PC (acrylonitrile butadiene styrene / polycarbonate). It is preferably at least 1mm thick and for example less than or equal to the thickness of the glazing, especially when it is in the through hole (in particular notch) of the laminated glazing. For example, it is a plastic of at most 3mm and / or at least 2mm. The support (multifunctional) can be glass (simple or even laminated) or plastic transparent to the working wavelength. The (multi-function) support may include means of holding (clips etc.) the LIDAR and / or sensors, cameras etc. The near infrared transmission window and / or any other transmission window of the medium may be a through opening (laterally) or a closed opening. The first exit face may be flat or curved, depending on the curvature of the glazing (curved, domed) or of a support (on the F4 face, or on the F2 face in a partial hole of the laminated glazing or in a through hole of the laminated glazing). The first exit face is optionally bonded to the main internal face of the first glass sheet (if single glazing) or of the second glass sheet if laminated glazing. The first exit face (forming the bonding face) may be glued (to the F4 face, F2 face, internal face of a support) with an adhesive layer (additional glue, -film or coating- or interlayer) with a refractive index different by at most 0.1 (in absolute value) from that of the first prism. The first (and the second) exit face may be of any shape, in particular geometric, preferably in particular rectangular or trapezoidal. The second input face can be flat or curved, depending on the curvature of the glazing and on the external face F1. The first output face (forming the connecting face) can be glued (to the face F1, external face of a support) with an adhesive layer (additional glue, - film or coating - or interlayer) with a refractive index different by at most 0.1 (in absolute value) from that of the second prism. The second output face can be bare or protected by a protective and / or camouflage coating (transparent to LB1). According to a particular embodiment, the glazing is the laminated glazing comprising the first sheet of glass intended to form the exterior glazing with the first external main face (called face F1) and a second internal main face (called face F2) facing the passenger compartment, a second sheet of glass intended to form the interior glazing with a third external main face (called face F3) facing the second internal main face and a fourth internal main face (called face F4) facing the passenger compartment, a lamination interlayer made of polymer material arranged between the second internal main face and the third main face. In a first configuration, the first output face is bonded to the fourth main face by a local adhesive or is in adhesive contact with the fourth main face and / or the second input face is bonded to the first main face by a local adhesive or is in adhesive contact with the first main face (the local adhesive has a difference in optical refractive index of less than 0.1 with n1, respectively with n2). In a second configuration, the lamination interlayer having an external main face bonded to the second internal main face and an internal main face bonded to the third external main face, the laminated glazing comprises a through hole in the thickness of the second glass sheet, the glazing comprising a part (with parallel faces) arranged in the through hole, the part being made of material, in particular mineral and even extra-clear glass, transparent at the working wavelength, the part having a main bonding surface (bonded by a layer of glue with the second internal main face or with the internal main face of the lamination interlayer, the part having an internal main surface opposite the main bonding surface, the first output face is bonded to the internal main surface by a local glue or is in adhesive contact with the internal main surface, (the second input face (46) is bonded to the first main face by a local glue or is in adhesive contact with the first main face, (the local glue has a difference in optical index of refraction less than 0.1 with n1, respectively with n2). In a third configuration, the laminated glazing comprises a through hole in the thickness of the glazing (of the second glass sheet and of the lamination interlayer, of the second sheet), in particular forming a notch, the first prism and the second prismatic optical device are in the area of said through hole, in particular linked to a support, in particular multifunctional in said through hole, for example are on either side on the support transparent to the working wavelength or are at least partially in an orifice of the support linked together by an adhesive or forming a single block. The glazing system may comprise a support, in particular transparent to the working wavelength, in particular extra-clear glass or polymer, comprising the near-infrared transmission window, possibly via an orifice, a support possibly carrying the optical device, and comprising at least one other transmission window in the visible and / or in the infrared, in particular medium and / or far infrared, a support on the inner face of the glazing or in a through-hole zone of the glazing. The second optical device, in particular a multiprismatic element, may be flush or sub-flush with the first main face. The laminated glazing may comprise a through hole in the thickness of the second glass sheet and the lamination interlayer, and in which the first exit face is in adhesive contact with the internal main face of the lamination interlayer and in particular the second entry face is bonded to the first main face by a local adhesive or is in adhesive contact with the first main face. According to another particular and interesting aspect, the glazing system comprises a masking layer (black enamel, black ink), peripheral, linked to, preferably on, the second main face, the near infrared transmission window is in an opening (called a saving) of the masking layer (opening created by a through hole or by the design of the layer). The saving can be in a zone in particular central to the upper longitudinal edge of the glazing (windshield), opening out or not (towards the center of the glazing, of the windshield). The peripheral masking layer can be a mineral coating such as an enamel, black on the second side or an ink (black) on an interlayer in particular PVB). And / or another masking layer is on a main surface of a support in particular multifunctional, in particular in a through hole (or even partial) of the laminated glazing, and the support includes the near infrared transmission window possibly in an opening of the other masking layer and even of the support. The opening can be in a zone in particular central of the upper longitudinal edge of the glazing (windshield), opening out or not (towards the center of the glazing, of the windshield) Advantageously, in the near infrared transmission window, the glazing comprises a functional layer which is a camouflage layer, in particular arranged in the opening or sparing a masking layer, in particular an adhesive camouflage layer, in particular: - connecting the first output face to the main interior surface of the glazing or to the main face of a support, in particular a multifunctional one, in a through hole of the glazing, in particular a laminated one - and / or bonding the second entry face to the first main face of the glazing or to the external main face of a support in a through hole of the laminated glazing - or linking the first exit face and the second entry face (in a through-hole area of the glazing, in particular laminated). The first entry face may be at least partially protruding from the interior surface of the preferably laminated glazing (therefore from face F4, perforated or not) and even from the possible support (multifunction) on face F4 or face F2 (if total hole). Preferably, in the near infrared transmission window, the glazing comprises a functional layer which is preferably a camouflage layer (or a heating layer), in particular arranged in the opening of a masking layer (peripheral), for example downstream of the first prism (further outwards) and even upstream of the second prismatic optical device (second prism or multiprismatic element). In particular, the camouflage layer is adhesive (for example made of crosslinked material), bonding the first or second output face to one of the main faces of the glazing or of a support, in particular a multifunctional one, in a through hole of the laminated glazing or even of a part in a through hole of the second sheet of the laminated glazing, the part being able to carry or form said first prism. In the near infrared transmission window, the glazing may include a functional layer, in particular a heating or hydrophobic layer, downstream of the first prism and even upstream of the second prismatic optical device (second prism or multiprismatic element). Advantageously, the glazing system comprises a lidar infrared detection system at said working wavelength, the infrared detection system comprising a light source and a detection device, the light source being capable of generating the near-infrared emission beam, the detection device being capable of detecting reflected radiation in at least a portion of the external field of view, and in particular in which the external vertical angular aperture FOV2 is greater than the internal vertical angular aperture FOV1 by at least 5 degrees and even by at least 10 degrees, the internal vertical angular aperture FOV1 is preferably less than 30 degrees or less than or equal to 20 degrees. There are different types of lidar depending on the angular aperture, spatial extent and / or scanning of the emission beam. The lidar emission beam can be emitted along a monodirectional optical axis which is scanned in two dimensions or the emission beam extends along a sheet which is scanned in a transverse direction or the emission beam is flash and illuminates a volume of space without scanning the beam. The lidar's emission beam can scan a rectangular area. The lidar infrared detection system can be placed in a housing, for example made of plastic or metal. This housing can form a cover for the Lidar and more broadly for a set of elements (sensor components, camera(s) in this area and therefore cover areas of camera(s), sensor(s). The housing is fixed to the main inner face of the glazing, in particular the fourth face, or to a support, in particular a multifunctional support (or plate) fixed to the glazing, in particular to the fourth main face. Advantageously, the housing is removable. The housing is fixed, for example by clipping, to said support or to the innermost main face of the glazing and / or to an element of the vehicle (the interior trim of the vehicle's passenger compartment and / or to the bodywork), for example the roof of the vehicle. For example (in its upper part), the housing is fixed to the inner face of the glazing (face F4 for laminated glazing) through the bodywork perforated for this purpose. The glazing may comprise (in particular by sparing(s) the masking layer), one or more other transmission windows in the near infrared, in the visible (for example to allow the use of a sensor operating in the visible and in this case, no camouflage layer is added in the visible) and / or in the far infrared (for example to allow the use of a thermal camera or another far infrared sensor). Preferably, the transmission window(s) are adjacent (in the central zone and near the upper longitudinal edge of the glazing, in particular the windshield). The glazing may optionally include one or more other transmission windows. In decreasing order of size, we can have: the Lidar transmission window, the one for a visible camera, the one for the thermal camera, the one for the rain sensor. The transmission window can be multispectral, notably in the near infrared and in the visible (for example to allow the use of a sensor operating in the visible and in this case, we do not add a camouflage layer in the visible) and / or in the infrared -far- at a higher wavelength than the working wavelength of the lidar. Of course, the various features, variants and embodiments of the invention may be combined with each other in various combinations to the extent that they are not incompatible or mutually exclusive. The following description, taken in conjunction with the accompanying drawings, given as non-limiting examples, will make it clear what the invention consists of and how it may be implemented. The invention is not limited to the embodiments illustrated in the drawings. Consequently, it should be understood that, when the features mentioned in the claims are followed by reference signs, these signs are included solely for the purpose of improving the intelligibility of the claims and in no way limit the scope of the claims. On the attached drawings: [Fig. 1] schematically represents in sectional view, in a reference plane, a vehicle glazing with an optical device according to the invention with an infrared lidar detection system; [Fig. T] schematically represents, in partial front view, a vehicle glazing according to the present disclosure, with its near infrared transmission window; and with an optical device according to the invention; [Fig. 2] shows curves illustrating the size of the vertical projection window of the lidar emission beam on the glazing as a function of the angle of the lidar emission beam incident on the glazing, respectively for a glazing tilt angle of 23 degrees (solid curve) and 30 degrees (dashed curve) relative to the horizontal; [Fig. 3] shows curves illustrating the size of the vertical projection window of the lidar emission beam pointing horizontally on the glazing as a function of the internal vertical angular aperture of the field of view of the lidar emission beam incident on the glazing, respectively for a glazing tilt angle of 23 degrees (dashed curve) and 30 degrees (solid curve) relative to the horizontal; [Fig. 4] schematically represents in sectional view in the reference plane, a system comprising an optical device according to a first exemplary embodiment; [Fig. 5] shows curves illustrating the variations of the internal pointing direction angle of the emission beam as a function of the first angle a1 of the first entrance face of the first prism relative to a vertical axis in the reference plane for a system such as as illustrated in Figure 4, respectively for an output angle I of external pointing direction of the emission beam of respectively -15 degrees, 0 degrees and +15 degrees relative to the vertical axis in the reference plane; [Fig. 6] shows curves illustrating the maximum internal vertical angular aperture of the lidar emission beam as a function of the angle a1 of the first input face relative to the vertical axis in the reference plane for a system as illustrated in Figure 4, respectively for different optical refractive indices n2 of the second prismatic optical device between 1.20 and 1.52; [Fig. 7] schematically represents in sectional view in the reference plane, a system comprising an optical device according to a second exemplary embodiment; [Fig. 8] shows curves illustrating the variations of the internal pointing direction angle of the emission beam as a function of the first angle α of the first input face relative to a vertical axis in the reference plane for a system as illustrated in Figure 7, respectively for an external pointing direction angle of the emission beam of respectively -15 degrees, 0 degrees and +15 degrees relative to the vertical axis in the reference plane; [Fig. 9] shows curves illustrating the maximum internal vertical angular aperture of the lidar emission beam as a function of the first angle a of the first input face relative to the vertical axis in the reference plane for a system as illustrated in Figure 7, respectively for different optical refractive indices n2 of the second prismatic optical device between 1.20 and 1.52; [Fig. 10] schematically represents in sectional view in the reference plane, a system comprising a first prismatic optical device and a second prismatic optical device according to a third exemplary embodiment, in which the first and second angles are not distorted and distinct; [Fig. 11] shows curves illustrating the internal vertical angular aperture FOV1 of the lidar emission beam as a function of the second angle a2 of the second output face relative to the vertical axis in the reference plane for a system as illustrated in Figure 10, respectively for different first angles ai of the first input face ranging from -15 degrees to +15 degrees; [Fig. 12] shows curves illustrating the angle, relative to a horizontal axis, of the median pointing direction of the lidar emission beam on the first input face as a function of the second angle a2 of the second input face relative to the vertical axis in the reference plane for a system as illustrated in Figure 10, respectively for different first angles ai of the first input face ranging from -15 degrees to +15 degrees; [Fig. 13] shows points illustrating the second angle a2minimum of the second output face as a function of the first angle ai of the first input face so that the direction median of the lidar emission beam pointing downwards (negative angle of attack i'), relative to a horizontal axis, on the first input face for a system as illustrated in figure 10; [Fig. 14] shows points corresponding to the extreme radii of the internal vertical angular aperture FOV1 of the lidar emission beam as a function of the first angle ai of the first input face so that the median pointing direction points horizontally at the output (zero output angle i), in a system as illustrated in Figure 10; [Fig. 15] shows points illustrating the second minimum and maximum angles a2 of the second input face relative to the vertical axis in the reference plane for a system as illustrated in Figure 10 as a function of the first angle ai of the first input face making it possible to reduce the internal vertical angular aperture FOV1 and to orient the median direction downwards (negative i'); [Fig. 16] shows points corresponding to the extreme radii of the external vertical angular aperture FOV2 for a system as illustrated in Figure 10 as a function of the first angle ai of the first input face for a given vertical angular aperture FOV1 and making it possible to orient the median direction downwards; [Fig. 17] shows regions illustrating the second angles a2 of the second input face relative to the vertical axis in the reference plane for a system as illustrated in figure 10 as a function of the first angle ai of the first input face making it possible to reduce the internal vertical angular aperture FOV1 and to orient the median direction downwards (negative i'), this for three inclination angles 20, 30, 40 degrees and for n1 and n2 being at 1.52; [Fig. 18] shows regions illustrating the second angles a2 of the second input face relative to the vertical axis in the reference plane for a system as illustrated in Figure 10 as a function of the first angle ai of the first input face allowing to reduce the internal vertical angular aperture FOV1 and to orient the median direction downwards (negative i'), this for four refractive indices n2 with a tilt angle at 30 degrees and for n1 being at 1.52; [Fig. 19] schematically represents in sectional view in the reference plane, a system comprising a first prismatic optical device which is a prism and a prismatic film comprising a plurality of microprisms according to a fourth exemplary embodiment; [Fig. 20] schematically represents in side section view a laminated vehicle glazing with an optical device (first prism on the fourth internal main face F4, second prism on the first external main face of the glazing or face F1) and a lidar according to a first laminated embodiment in which the transmitter and the receiver of the lidar are arranged vertically in the passenger compartment; [Fig. 21] shows in side section a glazing system which is a variant of that of Figure 19, in which the lidar transmitter and receiver are arranged side by side in the passenger compartment; [Fig. 22] schematically represents in side sectional view in the reference plane, a system comprising a laminated vehicle glazing and a lidar according to a second laminated embodiment in which the inner glass sheet comprises a through hole and in which the first prism is partially inserted into the through hole and linked to the internal main face of the lamination interlayer; [Fig. 23] shows in side section a glazing which is a variant of that of figure 22, in which the first prism is partially inserted into the through hole and linked to a thinned part of the lamination interlayer; [Fig. 24] shows in side section a glazing which is another variant of that of figure 22, in which the first prism is partially arranged in the through hole extended by the complete hole of the lamination interlayer; [Fig. 25] shows in side section a glazing which is a variant of that of figure 22, in which the first prism is partially arranged in the through hole extended by the complete hole of the lamination interlayer; [Fig. 26] shows in side section a glazing system which is another variant of figure 22, in which the first prism is partially arranged in the through hole extended by the complete hole of the lamination interlayer and is in direct adhesive contact with the second face 12; [Fig. 27] schematically represents in side section view a vehicle glazing according to a third embodiment in which the first prism is arranged in an orifice of a multifunctional support on an edge of the fourth main face; [Fig. 28] schematically represents a front view of the glazing of figure 27; [Fig. 29] schematically represents in side section view a vehicle glazing according to a fourth embodiment in which the first prism is partially arranged in a partial notch on an edge of the second main face; [Fig. 30] schematically represents in side section view a vehicle glazing according to a fifth embodiment in which the optical device is arranged in a through notch on an edge of the glazing; [Fig. 31] shows a front view of the glazing of figure 30, [Fig. 32] schematically represents in side section view a vehicle glazing according to a sixth embodiment in which the optical device is arranged in a through notch on an edge of the glazing; [Fig. 33] shows a front view of the glazing of Figure 32. In Figure 1, a vehicle glazing 1000 (preferably a road vehicle windshield) is schematically represented in a reference plane, for example a laminated glazing with a first main face 11 called F1 the outermost and an inner main face 12 called F2, here single glazing. For the sake of clarity, it is assumed that the vehicle is on horizontal ground. The reference plane is the lateral section plane (in other words transverse), thus taken perpendicular to the longitudinal axis. An orthonormal reference frame XYZ is represented, in which the Z axis is vertical, the X and Y axes being horizontal, and the X axis being in the reference plane. The reference plane is taken, the reference plane comprising a normal to the glazing and a vertical axis Z in the vehicle. The positive direction of the angles used in the present disclosure, which is the trigonometric direction, is also represented in Figure 1. The vehicle on which the glazing 1000 is installed or intended is, for example, a road vehicle (car, truck, public transport: bus, coach) or a railway vehicle (in particular at a maximum speed of at most 90km / h or at most 70km / h, in particular metros, trams). The glazing 1000 finds applications in particular in a windshield, or even a rear window, or even side glazing. For clarity of the description, Figures 1, 4, 7, 10, 19 show a flat glazing. However, the glazing may have at least one radius of curvature so as to be curved. The thickness of the glazing 1000 is denoted E. The thickness E is generally less than or equal to 1cm, for example 9mm, 8mm, 7mm, 6mm, preferably at most 5mm. In all the figures, the glazing 1000 to 1004, 100, 200, 201 to 204, 300, 400, 500, 600 is installed or intended to be installed on a vehicle by forming an angle of inclination, noted 0, with a horizontal axis in the reference plane considered. The angle of inclination 0 is greater than 0 degrees and less than 90 degrees and even at most 60 degrees, generally between 15° to 20° and 60 degrees, preferably ranging from 20 to 50 degrees, for example 23 deg. or 30 deg. for a motor vehicle windshield and ranging from 75 to 90 degrees for road transport vehicles. As indicated above, the angle of inclination 0 has a sign which is positive here.

[0001] In all the figures, the glazing 1000 to 1004, 100, 200, 201 to 204, 300, 400, 500, 600 has an upper longitudinal edge 10 and a lower longitudinal edge 10'. The reference plane preferably passes through the middle M of the upper longitudinal edge 10 and the middle of the lower longitudinal edge 10'. A lidar infrared detection system 7 is placed inside the passenger compartment of the vehicle, behind the glazing 1000 to 1004, 100, 200, 201 to 204, 300, 400, 500, 600 spaced from the first entry face of a detailed optical device 41, 42. The median pointing direction of the lidar emission beam exiting the glazing is oriented so that it is approximately parallel to the ground, i.e. horizontal. According to the present disclosure, the glazing 1000 to 1004, 100, 200, 201 to 204, 300, 400, 500, 600 comprises a first prismatic optical device 41 which is a first prism linked to the inner surface of the glazing 12 or 14 and a second prismatic optical device comprising a second prism 42 or a multiprismatic element 42' for example linked to the first external main face 11 of the glazing 100. In Figure 1 the first prism 41 has a first flat entry face 43, a first exit face here of connection 45 connected to the inner surface 12, of the glazing 1000 and another face called first non-functional base 47. The first entry face 43 forms a first edge with said first exit face 45. The first entry face 43 is arranged to receive the near infrared emission beam 70. The second prism 42 has a first entry face here of connection 46 connected to the first external main face 11 of the glazing, a second flat exit face 44 and another face called second non-functional base 48. The second exit face 44 forms a second edge with the second entry face 46. The first prism 41, respectively the second prism 42, is linked to the glazing 1000 via its first exit face 45, respectively the second entry face 46. For this purpose, for example, an adhesive 6 is used. The second prism 42 is arranged opposite the first prism 41, so as to transmit the near-infrared emission beam 70 by successive refractions through the first entry face 43, the first exit face 45, the glazing 1000, the second entry face 46 and the second exit face 44. In Figure 1, the lidar 7 is shown with a median pointing direction 30 inclined at an angle, noted i', relative to horizontal and with the vertical angular aperture FOV1. The first prism 41 and the second prism 42 are arranged and configured so as to receive the emission beam 70 and so as to angularly deflect the median pointing direction 35 of the emission beam at the output of the first external main face 11. The median pointing direction 35 of the lidar beam emerging from the second prismatic optical device is horizontal. In a known manner, the lidar infrared detection system 7 comprises a light source 71 and a detection device 72. The light source 71 is arranged and configured to generate a near-infrared emission beam 70. The emission beam 70 is emitted at a working wavelength, LB1, comprised in a spectral range from 800nm to 1800nm, in particular from 850nm to 1600nm, in particular 905±30nm and / or 1550±30nm. The detection device 72 is arranged next to the light source 71 and configured to detect reflected radiation in at least a portion of the field of view of the lidar outside the vehicle. Depending on the type of lidar used, the emission beam 70 is emitted in a direction which is scanned in two dimensions. transverse or the emission beam 70 extends along a sheet which is scanned in a single direction transverse to the sheet or the emission beam 70 is flash and does not use scanning. With or without scanning, the emission beam 70 has a determined vertical angular opening and a horizontal opening. The lidar infrared detection system 7 is placed behind and is spaced from the glazing 1000 to 1004, 100, 200, 201 to 204, 300, 400, 500, 600 forming the windshield of a motor vehicle, facing an area, here called near infrared transmission window 111, which is preferably located in the central and upper part of the windshield (in a variant lower part, in particular central, in the corners etc.). Figures 4, 7, 10, 19 show examples of window 111 of the windshield in four exemplary embodiments of the optical device as well as the arrangement and orientation of the lidar infrared detection system 7. The window 111 is transparent to the emission beam of the lidar infrared detection system 7. In this zone, the lidar infrared detection system is oriented with a certain angle of incidence with respect to the surface of the windshield, in particular the internal main face 14 of the laminated or single glazing.In particular, the light source 71 is oriented so that its median pointing direction forms a negative angle of attack i' relative to a direction parallel to the ground, i.e. approaching the glazing 100. In other words, the light source 71 of the LIDAR can be oriented downwards according to a negative angle of attack i' with a field of view adapted to fulfill its functions. The detection device 72 is generally oriented parallel to the light source 71. The window 111 may be multispectral, in particular in the infrared at a lower wavelength than the working wavelength of the lidar and / or in the visible (for example to allow the use of a sensor operating in the visible and in this case, no camouflage layer 110 is added in the visible) and / or in the infrared at a higher wavelength than the working wavelength of the lidar (for example to allow the use of a thermal camera or another infrared sensor).

[0002] In certain particular embodiments, the glazing is a glazing comprising a single sheet of glass (see for example glazing 1000, 1001, 102, 103, 1004 figures 1, 4, 7, 10, 19). In this case, the glazing has a first external main face 11 oriented towards the outside of the vehicle and an internal main face 12 oriented towards the passenger compartment of the vehicle.

[0003] In other particular embodiments, the glazing is laminated glazing comprising (see figures 20 to 33): - a first sheet of glass (clear, extra-clear) 1 intended to form the exterior glazing with a first external main face 11 and a second internal main face 12 facing the passenger compartment; for a motor vehicle, the first sheet of glass 1 has a thickness preferably at most 4 mm, and even at most 3 mm or 2.5 mm, in particular 2.1 mm, 1.9 mm, 1.8 mm, 1.6 mm and 1.4 mm and preferably at least 0.7 mm or 1 mm; - a lamination interlayer 3 made of polymer material having a main face 38 oriented towards the second internal main face 12 and a main face 39 opposite the main face 38; the lamination interlayer 3 is single- or multi-layer, possibly neutral, clear, extra-clear or tinted, in particular gray or green, made of polymer material, preferably thermoplastic and better still made of polyvinyl butyral (PVB), preferably for a road vehicle with a thickness of at most 1.8 mm, better still at most 1.2 mm and even at most 0.9 mm (and better still at least 0.3 mm and even at least 0.6 mm), the lamination interlayer 3 is possibly acoustic and / or possibly has a cross-section decreasing in a wedge shape from the top to the bottom of the laminated glazing (in particular a windshield) for a head-up display (HUD for Head Up Display in English); and - a second sheet of glass 2 intended to form the interior glazing with a third main face 13 oriented towards the second internal main face 12 of the first sheet of glass 1 and a fourth main face 14 oriented towards the passenger compartment. In the case of laminated glazing, the first outer main face of the first glass sheet 1 forms the first outer main face 11 of the glazing and the fourth main face of the second glass sheet 2 forms the inner main face 14 of the glazing. For a road vehicle, the second glass sheet 2 is preferably of a thickness less than that of the first glass sheet 1, even at most 3mm or 2mm - in particular 1.9mm, 1.8mm, 1.6mm and 1.4mm - or even at most 1.3mm, and preferably at least 0.7mm, the sum of the thicknesses of the first glass sheet and the second glass sheet preferably being strictly less than 5 or 4mm, even 3.7mm. The first glass sheet 1, in particular based on silica, soda-lime, silicosodo-lime, or aluminosilicate, or borosilicate, has a weight content of total iron oxide (expressed in the form Fe2C>3) of at most 0.05% (500 ppm), preferably at most 0.03% (300 ppm) and at most 0.015% (150 ppm) and in particular greater than or equal to 0.005%. The redox of the first glass sheet is preferably greater than or equal to 0.15 and in particular between 0.2 and 0.30, in particular between 0.25 and 0.30. In particular, an OPTWHITE glass of 1.95 mm is chosen.

[0004] Advantageously, at least in the near infrared transmission window, the glass sheet(s) are made of glass transparent in the near infrared, as for example described in patent documents WO2018015312 and / or WO2018178278.

[0005] In particular, in the embodiments without a hole in the first or second glass sheet, the first glass sheet 1 is made of clear or extra-clear glass and the second sheet is also made of clear or extra-clear glass or plastic.

[0006] In the case with a through hole, the second glass sheet thus pierced 2 is optionally tinted. The second glass sheet 2, in particular based on silica, soda-lime, preferably silicosodo-lime, or even aluminosilicate, or borosilicate, optionally has a weight content of total iron oxide (expressed in the form Fe2O3) of at least 0.4% and preferably at most 1.5%. The second glass sheet 2 is for example based on a glass manufactured by 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. For example, a TSA3+ glass of 1.6 mm thickness is chosen.

[0007] The windshield of a road vehicle in particular is flat (glazing of a transport vehicle) or curved (motor vehicle, in particular). In a conventional and well-known manner, the windshield is obtained by hot lamination of the first and second sheets of glass 1, 2 and the lamination interlayer 3. For example, a clear PVB of 0.38 mm or 0.76 mm is chosen. Figure 1' schematically represents, in partial front view, a laminated (or simple) vehicle glazing according to the present disclosure, with its near infrared transmission window 111 and with an optical device according to the invention (first prism and second prismatic optical device: second prism or multiprismatic element). It is a partial view of the upper and central part of a laminated glazing from the side of the inner face of the second glass sheet 2 which is the face F4 14. Here we see the first prism 41 of rectangular shape.

[0008] The laminated glazing 1, 2, 3 advantageously comprises a masking layer 5 forming a peripheral frame, with an enlarged central zone 50, arranged between the first glass sheet 1 and the lamination interlayer 3. The masking layer 5 is opaque to visible and near infrared radiation, for example black, such as an enamel layer or a lacquer. The masking layer 5 is in particular capable of masking the lidar remote from the window. The masking layer 5 comprises a recess of suitable dimensions. The recess (not visible) allows the passage of the lidar emission beam towards the outside and of the reflected beam towards the detection device. The recess of the masking layer has for example a rectangular shape (or trapezoidal etc.) with two large horizontal sides and two small vertical sides.

[0009] The glazing system here comprises a support 80, in particular a multifunctional one, for example a rectangular opaque or opacified plastic sheet with large horizontal edges 801, 802 and two small vertical edges 803, 804, linked to the fourth main face 14 and for example perforated or with a recess in the near infrared transmission window 111. The first prism is for example of triangular section, which may have a first rectangular exit face within the orifice or recess 81 of the rectangular support 80 with large horizontal and vertical sides. The location of the edge 40 delimiting the first entry face 43 and the base 47 of the prism depends on the angles of the prism.

[0010] The support 80 possibly includes one or more other transmission windows: - in the visible (via an orifice or a saving if necessary), dedicated for one or more other devices, sensors, visible camera - and / or a far infrared transmission window (via an orifice preferably with a dedicated insert such as a crystal), dedicated for a far infrared sensor, a thermal camera - and / or one (other) near infrared or mid infrared transmission window (, dedicated for a near infrared or mid infrared sensor.

[0011] The support can carry one or more rain sensors, humidity sensors, a rearview mirror.

[0012] The visible and / or far infrared transmission windows (and / or the sensors, cameras, etc.) are, for example, arranged (on the periphery of the support 80) around the first prism 41. In decreasing order of size, we can have: the Lidar transmission window, that for the visible camera, that for the thermal camera, that for the rain sensor.

[0013] In all embodiments, the lidar is spaced from the input face. A functional coating may be provided on the input face and / or the output face if free. The coating forms, for example, an IR anti-reflection layer or scratch protection. Patent document WO2022 / 200735 describes, for example, such an IR anti-reflection layer.

[0014] In all embodiments, optionally, the glazing further comprises in the transmission window 111 a heating functional layer transparent in the IR. Patent document WO2022 / 208025 describes for example a transparent conductive oxide (TCO) layer, transparent in the IR and making it possible to locally heat the glazing. Patent document WO2022 / 219273 describes for example a camouflage layer arranged between the face F2 of a glazing and the front face of a part. Patent document WO2023 / 118710 describes for example an adhesive camouflage layer.

[0015] In all embodiments, the first prism 41 (and / or the second prismatic optical device: second prism 42 or multiprismatic element 42') may be, for example, made of mineral material (in particular glass or glass-ceramic) transparent at least to the working wavelength LB1 of the lidar. Patent document WO2022 / 175634 describes, for example, a material suitable for such a mineral part. Alternatively, the prism (and / or the second prismatic optical device: second prism 42 or multiprismatic element 42') is made of polymer transparent at least to the working wavelength LB1 of the lidar, for example PC or PMMA. Patent document WO2022 / 175635 describes, for example, another example of a polymer material. The prism is for example obtained by molding, machining.

[0016] In certain embodiments or variants, in particular here of the second and fourth embodiments, to transmit the LIDAR beam, the second glass sheet 2 is perforated (by a through hole 4 of this sheet 2 in particular forming a partial notch in the glazing) and preferably a part (insert) is arranged in the through hole and preferably protruding from the fourth main face, linked to the second internal main face 12 or to the edge of the glazing and forms the first prism 41.

[0017] As a variant in particular of the second embodiment, the first prism 41 is linked (by gluing or direct adhesive contact) to this part (on its main face facing the passenger compartment), a part with parallel faces.

[0018] Alternatively or additionally, in certain embodiments or variants of the second embodiment, the lamination interlayer comprises a partial or through hole in the transmission window 111, interlayer hole at right angles to the through hole 4 of the second glass sheet (see figures 23 to 26). The first prism 41 is here partly within this partial or through interlayer hole, linked to the second internal main face 12. The second prism 42 (or multiprismatic element as a variant) is glued to the first face F1 11 by an adhesive 6. The first prism 41 is for example glued by PVB without plasticizer (thin PVB 31 (as in figure 23), thermoplastic ethylene-vinyl-acetate (EVA), by crosslinked adhesive layer including crosslinked EVA, polyacrylate (PSA film or coating). The glazing according to the invention has a near-infrared lidar transmission window, in particular between 800 nanometers (nm) and 1550 nm. As illustrated in figures 24 to 26, the glazing 202, 203, 204 is arranged so as to receive the near infrared emission beam 70 of the lidar 7 in the transmission window 111 in particular in a sparing of the usual masking layer 5 and even of the usual solar control layer 15 (stack with silver layer(s)) within the glazing (on the second internal main face 12 or the third internal main face 13 or on a carrier film). In Figure 1, the infrared detection system 7 is shown in a position and orientation. The lidar 7 is shown with a median pointing direction 30 slightly inclined downwards by an angle, noted 0, relative to horizontal and the internal vertical angular aperture FOV1. The vertical angular aperture of the emission beam 70 extends between the extreme straight lines or rays 301 and 302 in the reference plane (plane of Figure 1). The internal vertical angular aperture FOV1 is the sum of the angle between the straight line 30 and the straight line 301 and the angle between the straight line 30 and the straight line 302. The internal vertical angular aperture FOV1 is the sum of the angle between the median direction 30 and the upper extreme ray 301 of the lidar beam 70 propagating inside the vehicle (also called half-opening angle 0.5*FOV1) and the angle between the median direction 30 and the lower extreme ray 302 of the lidar beam 70 propagating inside the vehicle (also called half-opening angle 0.5*FOV1). Through a conventional glazing, that is to say without the first prism and the second prismatic optical device of the present disclosure, the emission beam 70 is refracted through the glazing of thickness E, assumed to be constant in the reference plane, and emerges through the first external main face 11 with its vertical angular aperture FOV1. The median pointing direction is parallel to the median pointing direction 30, and simply offset due to the refraction through the glazing 1000 of thickness E. The external vertical angular aperture FOV2 of the emission beam exiting the first external main face 11 is then equal to the vertical angular aperture FOV1 of the emission beam 70 incident on the glazing. L denotes the size of the vertical window for projecting the lidar emission beam 70 onto the main internal face 14 of the glazing in the reference plane. The size L of the vertical window depends on the internal vertical angular aperture FOV1, the angle i' between a horizontal axis and the median pointing direction 30 of the lidar beam inside the passenger compartment, the inclination angle 0 of the glazing and the distance d between the lidar and the main internal face 12 of the glazing according to the following formula: The distance d is taken along the median direction of pointing 30. More precisely, d represents the distance between the source point from which the LIDAR rays appear to originate and the glazing along the optical axis. This source point may be real or virtual, at the same location in space for the vertical and horizontal FOV or not. The position and configuration of the lidar as close as possible to the roof of the vehicle have the advantage of reducing the footprint of the lidar inside the passenger compartment. The disadvantage of this position and configuration is the extent of the size L of the vertical window, which can reach 15 to 20 cm, for the vertical angular opening FOV1 of the emission beam 70. Figure 2 illustrates the variations of the size L of the vertical window for projecting the lidar emission beam onto the glazing without any prism as a function of the angle i' of the lidar emission beam incident on the bare glazing. In these examples, the distance d is 5 cm. The minimum value of the size L is obtained for an angle i' of the beam equal to TT / 2-0 which corresponds to a minimum value of L equal to 2d. tan (FOV1 / 2). When the lidar has a horizontal median pointing direction, the size L of the vertical window is respectively 6.8 cm for a 0 inclination angle of 23 degrees of the glazing (solid curve), and 11.2 cm for a 0 inclination angle of 30 degrees (dashed curve). Size L is at. minimum of approximately 2.7 cm when the lidar is oriented with its median pointing direction normal to the glazing. The size L of the vertical window for projecting the lidar emission beam 70 onto the main internal face of the glazing without any prism is thus greatly reduced when the median pointing direction 30 of the lidar beam is close to the normal to the glazing in the absence of the first prism. According to the present disclosure, the insertion of the first prism 41 makes it possible to reduce the size L of the vertical window on the main internal face of the glazing without bringing the lidar closer to the normal to the main internal face of the glazing. This configuration has the advantage of not increasing the size of the lidar inside the passenger compartment of the vehicle. In addition, at the output of the second output face 44, the emission beam 70 advantageously has an external field of view with a vertical angular opening FOV2 greater than or equal to the vertical angular opening FOV1 of the internal field of view. Figure 3 illustrates the variations in the size L of the vertical projection window of the lidar emission beam onto the glazing as a function of the vertical angular aperture FOV1 of the field of view of the lidar emission beam incident on the glazing without the first prism 41 and the second prismatic optical device 42, for an inclination angle 0 of 23 degrees of the glazing (solid curve), and for an inclination angle 0 of 30 degrees (dashed curve), at a distance d of 5 cm. The combination of the first prism (here linked to the main internal face of the glazing) and the second prismatic optical device (here linked to the main external face of the glazing), makes it possible to maintain or reduce the size L of the vertical window for projecting the lidar emission beam onto the glazing while increasing the vertical angular opening FOV2 of the field of view of the lidar emission beam successively passing through the first prism, the glazing and the second prismatic optical device. Figure 4 schematically represents a first example of a system comprising a glazing, a first prism 41 and a second prismatic optical device, in the reference plane of the glazing 1001. In this first embodiment, the second prismatic optical device is a second prism 42. The first prism 41 has a first flat input face 43, a first output face here of connection 45 connected to the inner surface 12, 14 of the glazing 1001 and another face called first base 47 non-functional. The first input face 43 forms a first edge with said first output face 45. The first input face 43 is arranged to receive the near infrared emission beam 70. In the angular reference of figure 4, the first angle a1 is positive. The second prism 42 has a first input face here of connection 46 connected to the first external main face 11 of the glazing, a second face of flat output 44 and another face called second non-functional base 48. The second output face 44 forms a second edge with the second input face 46. The first prism 41, respectively the second prism 42, is linked to the glazing 100 via its first exit face 45, respectively the second entry face 46. For this purpose, for example, an adhesive 6 is used. The second prism 42 is arranged opposite the first prism 41, so as to transmit the near-infrared emission beam 70 by successive refractions through the first entry face 43, the first exit face 45, the glazing 1001, the second entry face 46 and the second exit face 44. In the first embodiment, the first input face 43 forms a first non-zero angle a1 with the vertical axis Z in the reference plane and the second output face 44 forms a second zero angle a2 with the vertical axis Z in the reference plane. We denote by hi the height of the first prism 41 along the Z axis in the reference plane, h the length of the first prism 41 along the X axis in the reference plane, LB the height of the second prism 42 along the Z axis in the reference plane and l2 the length of the second prism 42 along the X axis in the reference plane. The first prism 41 has a first optical refractive index m and the second prism 42 has a second optical refractive index n2. We denote by n v the optical refractive index of the glazing 100. For the sake of clarity, it is considered here that the glazing 100 consists of a single sheet of glass, for example the first sheet of glass 1, as described above. In the first embodiment, only the first angle a1 of the first prism 41 can be variable. The first prism 41 has a height hi of at least 2 cm, in particular ranging from 2 cm to 5 cm, a length h of at least 4 cm and in particular ranging from 4 cm to 7 cm, and preferably equal to 7 cm. The second prism 42 has a height L B of at least 2.5 cm and in particular ranging from 2.5 cm to 6 cm and a length l2 of at least 5 cm and even ranging from 5 cm to 10 cm. In a third embodiment, illustrated in figure 10, where the second prism 42 is also allowed to have a second variable angle a2, the lower limits are lower, the minimum height hi is 2mm (and for manufacturing at least 5mm or 1cm preferably), the minimum length h is 3mm (and for manufacturing at least 5mm or 1cm preferably), the minimum height LB is 2mm (and for manufacturing at least 5mm or 1cm preferably), and the minimum length l2 is 3mm (and for manufacturing at least 5mm or 1cm preferably). Figure 4 also shows the angle of incidence of the emission beam 70 on the different surfaces and interfaces. We note i' the angle of attack of the direction of the emission beam 70 incident on the first entry face 43 relative to a horizontal axis in the reference plane. The median direction of pointing 30 inclined at an angle relative to horizontal is here noted 0. We note r'” the angle of incidence of the direction of the emission beam 70 with respect to the normal to the first input face 43. We note r” the angle of incidence of the direction of the emission beam 70 with respect to the normal to the first output face 45. We note r' the angle of incidence of the direction of the emission beam 70 with respect to the normal to the second input face 46. We note r the angle of incidence of the direction of the emission beam 70 with respect to the normal to the second output face 44. We note i the exit angle of the direction of the emission beam 70 leaving the second output face 44 with respect to a horizontal axis in the reference plane, this horizontal axis being, in the first example, parallel to the normal to the second output face 44. The angle i' of the direction of the emission beam 70 incident on the first input face 43 is linked to the angle i of the direction of the emission beam 70 exiting from the second output face 44 by the following relation: , / / / n2( ( 1 \\\ \\ i = arcsin cos arcsin - cos 0 + arcsin — sin i — 0 — al + a 1 \ \ \ n i \ \n2) ) ) )) For simplicity, we consider here that the glazing 1001 is a sheet of flat glass. In this case, the relationship between the angles i and i' does not depend on the optical refractive index of the glazing. Figure 5 shows curves illustrating the variations of the angle i' of the emission beam relative to a horizontal axis as a function of the first angle a1 of the first input face 43 for different angles i of the direction of the emission beam 70 exiting from the second output face 44, the angle i being respectively -15 degrees, 0 degrees and +15 degrees relative to a horizontal axis. The optical refractive indices of the first prism 41, of the glazing 1001 and of the second prism 42 are here equal to 1.52 (for example for prisms 41, 42 made of glass). The dashed curve shows the vertical angular aperture FOV1 of the field of view of the emission beam incident on the first prism 41. A system thus configured makes it possible to maintain the vertical angular aperture of the field of view of the emission beam coming from the second prism 42, in other words FOV2 is equal to FOV1.For an exit angle i of the direction of the emission beam 70 exiting from the second exit face 44 equal to 0 degrees, it is observed that a negative angle i' is obtained for an inclination of the first entry face 43 with a first positive angle a1. The first positive angle a1 advantageously makes it possible to bring the direction of the emission beam 70 closer to the internal surface of the glazing 100, so that the source of the lidar points downwards inside the passenger compartment while pointing in a horizontal direction outside the passenger compartment of the vehicle. A similar effect is observed for exit angles i of +15 degrees and -15 degrees, the range of the angle a1 being offset by approximately ±10 to ±20 degrees relative to the range of negative angle a1 for an exit angle i equal to 0 degrees. According to another aspect of the present disclosure, a reduction in the optical refractive index n2 so that n2 is less than or equal to makes it possible to increase the vertical angular aperture FOV2 of the field of view of the emission beam coming from the second prism 42 relative to the vertical angular aperture FOV1, or, for a given vertical angular aperture FOV2, for example 30 degrees, to reduce the vertical angular aperture FOV1 of the field of view of the emission beam 70 incident on the glazing. Figure 6 shows curves illustrating the maximum internal vertical angular aperture FOV1 of the emission beam 70 as a function of the first angle a1 of the first input face 43 of the first prism 41 relative to the vertical axis in the reference plane for a system according to the first embodiment, respectively for an optical index of refraction n2 of the second prism 42 of 1.52, 1.40, 1.30 and 1.20, with ni=1.52 and for an external vertical angular aperture FOV2 of the beam exiting from the second output face 44 of 30 degrees (or + / -15 degrees around the horizontal axis), FOV2 being represented in dashes in Figure 6. When the optical index of refraction n2 is equal to 1.52, a reduction in the vertical angular aperture of the output beam is observed, the curve of FOV1 corresponding to n2= 1.52 being located above the curve in FOV2 dashes.On the other hand, when the optical refractive index n2 decreases, we observe that the maximum internal vertical angular aperture curves FOV1 pass below the dashed curve, which corresponds to a decrease in the internal vertical angular aperture of the lidar beam compared to the achievable external vertical angular aperture, in the example above of 30 degrees. To obtain both a pointing direction of the lidar pointing downwards inside the vehicle (i.e. negative angle i') and a reduction of the vertical angular aperture FOV1 for a given vertical angular aperture FOV2, a condition is that the optical index of refraction n2 is less than or equal to the optical index of refraction m at the working wavelength LB1 of the lidar. In order to illustrate this aspect in the context of the first embodiment, the following table I indicates, for different pairs of materials (Mat1, Mat2), Mat1 being the material of the first prism 41 and Mat2 the material of the second prism 42, the optical index of refraction n2 being less than the optical index of refraction ni, here at the wavelength LB1 of 905 nm, the vertical angular aperture FOV2 being given for example equal to 30 degrees, the values of: the minimum angle a1 m, the maximum angle O1 M, and respectively the optimal angle a1o of the first input face 43 to reduce the vertical angular opening FOV1, with the minimum angle a1 m allowing the median pointing direction 30 of the lidar to be oriented downwards, R indicating the operational range of values of the first angle a1 and FOVm the minimum field of view FOV1 achievable in the operational range R. In the following tables, PMMA is the acronym for polymethyl methacrylate, PC for polycarbonate, OCA for a moldable silicone forming an optically clear adhesive (OCA for "Optically clear adhesive" in English terminology). The difference between the optical index of refraction n2 and the optical index of refraction m is here less than 0.2. Each row of the table corresponds to a pair of materials (Mat1, Mat2). Table I: ranges of values of the first variable angle a1 of the first prism 41 and of the vertical angular opening ranges of the internal field of view, for different pairs (Mat1, Mat2) of materials for this first example of realization. Table II below indicates, still within the framework of the first example, for the same pairs of materials (Mat1, Mat2) as in Table I, Mat1 being the material of the first prism 41 and Mat2 the material of the second prism 42, the optical refractive index n2 of the second prism 42 being lower than the optical refractive index m of the first prism 41, here at the wavelength LB1 of 905 nm, the vertical angular aperture FOV2 being given for example equal to 30 degrees, the values of: the size LA of the vertical window for projection of the lidar emission beam on the first input face 43, the size L4 of the vertical window for projection of the lidar emission beam on the first output face 45, the size L1 of the vertical window for projection of the lidar emission beam on the second input face 46, the size L B of the vertical window for projecting the lidar emission beam onto the second output face 44, the length by height dimensions (hxhi) of the first prism 41 and the length by height dimensions (l2xh2) of the second prism 42 in the reference plane. For comparison, the size L of the vertical window for projecting the lidar emission beam onto the main internal face 14 of the glazing in the reference plane without the first prism is 6.8 cm. Table II: Ranges of values of the sizes of the lidar beam on the different faces of the two prisms and dimensions of the two prisms for different pairs of materials for the first example. The system according to the first example thus makes it possible to reduce the vertical angular opening of the internal field of view of the lidar relative to the vertical angular opening of the external field of view of the lidar while making it possible to orient the near-infrared emission beam 70 of the lidar so that it points downwards inside the vehicle, which makes it possible to improve the compactness of the lidar system inside the vehicle. Figure 7 schematically represents a second example of a glazing system comprising a glazing 1002, a first prism 41 and a second prism 42, in the reference plane of the glazing. The same elements are represented by the same reference signs as in Figure 4. The angle i' of the direction of the emission beam 70 incident on the first input face 43 relative to a horizontal axis in the reference plane, this horizontal axis being, in the second embodiment, parallel to the normal to the first input face 43. The angle i of the direction of the emission beam 70 exiting from the second output face 44 relative to a horizontal axis in the reference plane. Consequently, the direction of the emission beam 70 exiting from the second output face 44 forms an angle equal to i-a2 with the normal to the second output face 44.In the second example, the first input face 43 forms a first zero angle a1 with the vertical axis Z in the reference plane and the second output face 44 forms a second non-zero angle a2 with the vertical axis Z in the reference plane. In this case, the angle of attack i' of the direction of the emission beam 70 incident on the first input face 43 relative to a horizontal axis in the reference plane is linked to the exit angle i of the direction of the emission beam 70 exiting from the second output face 44 relative to a horizontal axis in the reference plane by the following relation: / m rn2 / / 1 \ Tnixx f = arcsin sin - 0 + arcsin — sin arcsin — sin (i — oc2) + oc2 + 0 - \ \2 Ln- \ \n2 / 2 / J / / In the case where the first prism 41 and the second prism 42 have the same optical index of refraction, noted n, this relationship is simplified as follows: / / / I \ \\ f = arcsin n sin arcsin - sin(i — oc2) + oc2 \ \ \n / / / Figure 8 shows curves illustrating the variations of the angle i' of the emission beam relative to a horizontal axis as a function of the angle a of the second exit face 44 for different angles i of the direction of the emission beam 70 exiting from the second exit face 44, the angle i being respectively -15 degrees, 0 degrees and +15 degrees relative to a horizontal axis. The optical indices of refraction of the first prism 41, of the glazing 1002 and the second prism 42 are here equal to 1.52 (for example for prisms 41, 42 made of glass). The dashed curve shows the vertical angular aperture FOV1 of the field of view of the emission beam incident on the first prism 41. A system thus configured according to the second example makes it possible to maintain the vertical angular aperture of the field of view of the emission beam coming from the second prism, in other words FOV2 is equal to FOV1. For an exit angle i of the direction of the emission beam 70 leaving the second exit face 44 equal to 0 degrees, it is observed that a negative angle of attack i' is obtained for an inclination of the second exit face 44 with a negative second angle a2.The first negative angle a1 of the first input face 43 advantageously makes it possible to bring the direction of the emission beam 70 closer to the internal surface of the glazing 100, so that the lidar source points downwards inside the passenger compartment while pointing in a horizontal direction outside the passenger compartment of the vehicle. A similar effect is observed for angles i of +15 degrees and -15 degrees, the range of the first angle a1 being offset by approximately ± 10 to ± 20 degrees relative to the range of first negative angles a1 for an angle i equal to 0 degrees. However, a second negative angle of the second output face 44 can result in an acute angle between the second output face 44 and the other face called the second base 48. As in the first example, a reduction in the optical refractive index n2 of the second prism 42, so that n2 is less than m, makes it possible to increase the vertical angular aperture FOV2 of the field of view of the emission beam coming from the second prism 42 relative to the vertical angular aperture FOV1, or, for a given vertical angular aperture FOV2, for example 30 degrees, to reduce the vertical angular aperture FOV1 of the field of view of the emission beam 70 incident on the glazing. Figure 9 shows curves illustrating the maximum internal vertical angular aperture FOV1 of the emission beam 70 as a function of the angle a of the second output face 44 relative to the vertical axis in the reference plane for a system according to the second example, respectively an optical index of refraction n2 of the second prism of 1.52, 1.40, 1.30 and 1.20, for m 1.52 and for a given external vertical angular aperture FOV2 of the beam exiting the second output face 44, for example 30 degrees (or + / -15 degrees around the horizontal axis), represented in dashed lines in Figure 9. When the optical index of refraction n2 is equal to 1.52, a small reduction in the internal vertical angular aperture FOV1 of the lidar beam is observed, the FOV1 curve corresponding to n2 = 1.52 being located just below the dashed curve of FOV2.When the optical refractive index n2 gradually decreases, it is observed that the curves of the maximum internal vertical angular aperture FOV1 allow a substantial reduction in the vertical angular aperture of the incident beam on the first prism 41 compared to the vertical angular aperture at the exit of the second prism 42. For example, for an optical index. of refraction n2= 1.30 we go from a vertical angular opening of the beam incident on the first prism 41 of approximately 20 degrees to a vertical angular opening of the beam leaving the second prism of approximately 30 degrees, which is considerable. In other words, the system according to the second example makes it possible to reduce the vertical angular opening of the internal field of view of the lidar compared to the vertical angular opening of the external field of view of the lidar, while making it possible to orient the near-infrared emission beam 70 of the lidar so that it points downwards inside the vehicle, which makes it possible to improve the compactness of the lidar system. It is thus possible to use a lidar having a limited vertical angular opening and to enlarge this vertical angular opening by means of the two-prism system. To obtain both a downward pointing lidar pointing direction (i.e. negative angle i') and a reduction in the vertical angular aperture FOV1 for a given vertical angular aperture FOV2, a condition is that the optical index of refraction n2 of the second prism 42 is lower than the optical index of refraction m of the first prism 41 at the working wavelength LB1 of the lidar. In order to illustrate this aspect in the context of the second example, the following table III indicates, for different pairs of materials (Mat1, Mat2), Mat1 being the material of the first prism 41 and Mat2 the material of the second prism 42, the optical index of refraction n2 of the second prism 42 being lower than the optical index of refraction m of the first prism 41, here at the wavelength LB1 of 905 nm, the vertical angular aperture FOV2 being given for example equal to 30 degrees, the values of: the minimum angle a2 m, the maximum angle O2M, and respectively the optimal angle a2o of the second output face 44 of the second prism 42 to reduce the vertical angular aperture FOV1, with the maximum angle OMI making it possible to orient the median pointing direction 30 of the lidar downwards, R indicating the operational range of values of the second angle a2, FOV1m the minimum internal field of view FOV1 achievable in the operational range R and FOV10 the internal field of view FOV1 achievable while keeping the lidar horizontal. The difference between the optical index of refraction n2 and the optical index of refraction m is here less than 0.2. Each line of table III corresponds to a pair of materials (Mat1, Mat2). prismatic 42 and vertical angular aperture ranges of the internal field of view, for different pairs (Mat1, Mat2) of materials for the second example. The following table IV indicates, still within the framework of the second example, for different pairs of materials (Mat1, Mat2), Mat1 being the material of the first prism 41 and Mat2 the material of the second prism 42, the optical index of refraction n2 of the second prism 42 being lower than the optical index of refraction m of the first prism 41, here at the wavelength LB1 of 905 nm, the vertical angular aperture FOV2 being given for example equal to 30 degrees, the values of: the size LA of the vertical window for projection of the lidar emission beam on the first entrance face 43 of the first prism 41, the size L4 of the vertical window for projection of the lidar emission beam on the first entrance face 43 of the first prism 41, the size L5 of the vertical window for projection of the lidar emission beam on the first entrance face 43 of the first prism 41, the size L6 of the vertical window for projection of the lidar emission beam on the first entrance face 43 of the first prism 41, the size L7 of the vertical window for projection of the lidar emission beam on the first entrance face 43 of the first prism 41, the size L8 of the vertical window for projection of the lidar emission beam on the first entrance face 43 of the first prism 41, the size L9 of the vertical window for projection of the lidar emission beam on the first entrance face 43 of the first prism 41, the size L10 of the vertical window for projection of the lidar emission beam on the first entrance face 43 of the first prism 41, the size L11 of the vertical window for projection of the lidar emission beam on the first entrance face 43 of the first prism 41, the size L12 of the vertical window for projection of the lidar emission beam on the first entrance face 43 of the first prism 41, the size L13 of the vertical window for projection of the lidar emission output 45 of the first prism 41, the size Li of the vertical window for projecting the lidar emission beam onto the second input face 46 of the second prism 42, the size LB of the vertical window for projecting the lidar emission beam onto the second output face 44 of the second prismatic optical device 42, the length by height dimensions (hxhi) of the first prism 41 and the length by height dimensions (l2xh2) of the second prism 42 in the reference plane. For comparison, the size L of the vertical window for projecting the lidar emission beam onto the main internal face 14 of the glazing in the reference plane without the first prism and the second prism is 6.8 cm. Table IV: Ranges of values of the sizes of the lidar beam on the different faces of the two prisms and dimensions of the two primes for different pairs of materials, where Inf means infinity The system according to the second example thus makes it possible to reduce the vertical angular aperture of the internal field of view of the lidar relative to the vertical angular aperture of the external field of view of the lidar while making it possible to orient the near-infrared emission beam 70 of the lidar so that it points downwards inside the vehicle, which makes it possible to improve the compactness of the lidar system inside the vehicle. The first and second examples are advantageously combined in a third example to provide more degrees of freedom. In the third example illustrated in Figure 10, the first input face 43 forms a first non-zero angle ai with a vertical axis parallel to the Z axis in the reference plane and the second output face 44 forms a second non-zero angle 02 with a vertical axis parallel to the Z axis in the reference plane. The first and second angles ai and 02 may be equal to each other or different from each other. The angle of the direction of the emission beam 70 incident on the first input face 43 relative to a horizontal axis in the reference plane is always denoted i'. The direction of the emission beam 70 exiting from the second exit face 44 here forms an angle equal to i-O2 with the normal to the second exit face 44. The adjustment of the two angles ai and 02 makes it possible to find an optimum between a small vertical angular opening FOV1 of the internal beam incident on the first prism and the orientation of the direction of the internal beam relative to the glazing 300.We note 0 the angle of inclination of the glazing with respect to a horizontal axis. The relationships between the angles are defined here by the following equations: r = arcsin. in which r'” represents the angle of incidence of the median pointing direction 30 of the lidar beam on the first input face 43, r” represents the angle of incidence of the median pointing direction of the lidar beam on the first output face 45, r' represents the angle of incidence of the median pointing direction of the lidar beam on the second input face 46 and r represents the angle of incidence of the median pointing direction of the lidar beam on the second output face 44. In Figure 11, curves illustrating the internal vertical angular aperture FOV1 of the lidar emission beam as a function of the second angle a2 of the second output face relative to the vertical axis in the reference plane for a system as illustrated in Figure 10, for different values of the first angle ai of the first input face respectively equal to -15 degrees, -10 degrees, -5 degrees, 0 degrees, +5 degrees, +10 degrees, and +15 degrees. The external vertical angular aperture FOV2 of the lidar emission beam is here given equal to 30 degrees. In Figure 11, it is observed that, when the first angle ai is greater than or equal to -5 degrees (in the range indicated above), the curves of FOV1 are all located below the value of 30 degrees, indicated by a dashed line in Figure 11, and which here corresponds to the value of FOV2.Therefore, as soon as the first angle ai is greater than or equal to -5 degrees, we obtain the effect of reducing the internal vertical angular opening FOV1 with respect to the external vertical angular opening FOV2. For values of the first angle ai less than or equal to -10 degrees (i.e. -10 degrees and -15 degrees in Fig. 11), certain values of the second angle a2 do not allow us to obtain a value of FOV1 less than the value of 30 degrees of FOV2. In this case, we obtain a value of FOV2 less than FOV1. However, we observe that for ai equal to -15 degrees, when a2 is less than approximately -5 degrees, we obtain a value of FOV1 less than the value of 30 degrees of FOV2. Similarly, for eu equal to -10 degrees, when a2 is less than approximately 0 degrees, we obtain a value of FOV1 less than the value of 30 degrees of FOV2. In Figure 12, curves are plotted representing the angle of attack i', relative to a horizontal axis, of the median pointing direction of the lidar emission beam on the first input face as a function of the second angle a2 of the second output face relative to the vertical axis in the reference plane for a system as illustrated in Figure 10, for different values of the first angle ai of the first input face respectively equal to -15 degrees, -10 degrees, -5 degrees, 0 degrees, +5 degrees, +10 degrees, and +15 degrees. It can be seen from these curves that, whatever the value of the first angle ai (in the range indicated above), there is always a value of the second angle a2 for which the value of the angle of attack i', relative to a horizontal axis (dashed line in Fig. 12), is negative, i.e. the median pointing direction 30 of the lidar points downwards inside the vehicle.This configuration allows the lidar to be brought closer to the glazing and thus reduces the size of the detection system inside the vehicle. In Figure 13, points corresponding to the second minimum angle 02 of the second output face are shown as a function of the first angle ai of the first input face so that the median pointing direction of the lidar emission beam points downwards, relative to a horizontal axis, on the first face for a system as illustrated in Figure 10. At first glance, the relationship between the second minimum angle 02 and the first angle ai appears linear, for a value of the angle ai between -30 degrees and +10 degrees, and for a value of the angle a2minimum ranging from -15 degrees to +15 degrees. In Figure 14, points corresponding to the extreme rays of the internal vertical angular aperture FOV1 of the lidar emission beam are represented as a function of the first angle ai of the first input face so that the median pointing direction points horizontally at the output, in a system such as illustrated in Figure 10. More precisely, for each value of the angle ai, the angle of the lower extreme ray of the vertical angular aperture FOV1 and the angle of the upper extreme ray of the vertical angular aperture FOV1 are represented, the difference between these two values being equal to FOV1. The external vertical angular aperture FOV2 of the lidar emission beam is here given equal to 30 degrees (i.e. the extreme rays are inclined by -15 degrees and +15 degrees respectively relative to a horizontal axis).For each value of the first angle ai we look for the second angle 02 which allows to point horizontally outwards, that is to say for which the median direction of pointing 35 is horizontal. We calculate the amplitude of the vertical angular opening FOV1 between the extreme rays. For the value of the first angle ai equal to -15 degrees, the value of FOV1 thus obtained is approximately 25 degrees: we obtain a reduction of the amplitude of the vertical angular opening FOV1 compared to the vertical angular opening FOV2 of 30 degrees. However, we observe that the more the value of the first angle ai increases, the smaller the reduction of the amplitude of the vertical angular opening FOV1. Indeed, for the value of the first angle ai equal to +15 degrees, the value of FOV1 thus obtained is practically equal to 30 degrees. In Figure 15, points corresponding to the values of the second minimum and maximum angles α2 of the second output face relative to the vertical axis in the reference plane are shown for a system as illustrated in Figure 10 as a function of the first angle ai of the first input face, making it possible both to reduce the vertical angular aperture FOV1 of the internal lidar emission beam and to orient the median pointing direction of the lidar beam downwards. More precisely, the second minimum and maximum angles α2 are identified for which the effect of pointing the lidar beam downwards is obtained (i.e. negative angle i'). Then, the second minimum and maximum angles α2 are identified for which the effect of reducing the vertical angular aperture FOV1 of the internal lidar emission beam relative to the external vertical angular aperture FOV2 is obtained. From these minima and maxima, for each value of the first angle ai, the domain of intersection allowing to obtain both the effect of orientation of the median pointing direction of the lidar beam downwards and the effect of reduction of the vertical angular aperture FOV1 of the internal lidar emission beam with respect to the external vertical angular aperture FOV2, as illustrated in fig. 15. On this graph, we obtain the set of pairs of angles (ai, 02) for which we obtain the two effects indicated above. We observe that from the value of first angle ai greater than or equal to -5 degrees, any pair of angles (ai, o2) allows to obtain the two effects. Below the value of first angle ai of -5 degrees, the range of values for the second angle o2 is more reduced to obtain the two effects. In Figure 16, points corresponding to the extreme radii of the external vertical angular aperture FOV2 are shown for a system as illustrated in Figure 10 as a function of the angle ai of the first input face for a given vertical angular aperture FOV1 of the internal lidar emission beam and making it possible to orient the median direction downwards. More precisely, for each value of first angle ai, the angle of the lower extreme ray of the vertical angular aperture FOV2 and the angle of the upper extreme ray of the vertical angular aperture FOV2 are shown, the difference between these two values being equal to FOV2. The internal vertical angular aperture FOV1 of the lidar emission beam is here given equal to 15 degrees. For each value of first angle ai, the second angle a2 is sought, which makes it possible to obtain the amplitude of the vertical angular aperture FOV2 greater than or equal to FOV1, i.e. here 15 degrees.If we only vary the value of the first angle ai, we observe on this graph that there is a single median pointing direction allowing a given angular aperture to be obtained. The variation of the second angle a2 allows the median pointing direction to be chosen without modifying the vertical angular aperture FOV1 of the detection system. Figure 17 shows regions illustrating the second angles a2 of the second input face relative to the vertical axis in the reference plane for a system as illustrated in Figure 10 as a function of the first angle ai of the first input face making it possible to reduce the internal vertical angular aperture FOV1 and to orient the median direction downwards (negative i'), this for three tilt angles 20, 30, 40 degrees and for n1 and n2 being at 1.52. The region widens (more possible second angles) by decreasing the inclination angle. We can choose the area common to all inclinations. Figure 18 shows regions illustrating the second angles a2 of the second input face relative to the vertical axis in the reference plane for a system as illustrated in Figure 10 as a function of the first angle ai of the first input face allowing to reduce the internal vertical angular aperture FOV1 and to orient the median direction towards the bottom (negative i'), this for four refractive indices n2 with an inclination angle of 30 degrees and for n1 being at 1.52. The region widens (more possible second angles) by decreasing n2. We can choose the area common to all indices or at least from n2=1.52. According to a fourth example illustrated in Figure 19, the glazing 1004 with the optical device comprises the first prism 41 and the second prismatic optical device which is a multiprismatic film 42' comprising a plurality of microprisms. Each microprism 142 has a millimeter, or submillimeter height in particular of at least 25 μm and preferably less than 1 cm. Each microprism 142 has a second entry face 146 and a second planar exit face 144 forming a second edge with the second entry face 146. Each microprism 142 also has another face called second base 148 connected to its second exit face 144 and to its second entry face 146. In one example, the microprisms 142 are all of identical dimensions and of the same optical refractive index n2.The second prisms are advantageously arranged contiguously to each other in the reference plane. This embodiment makes it possible to reduce the size of the second prismatic device outside the passenger compartment. Preferably, the prismatic film comprises a substrate 420 transparent to the working wavelength and bonded by an adhesive 6, possibly camouflage, to the first face 11 and the outer side comprising a partially structured coating (organic resin, for example liquid deposition) forming the microprisms. Such a multiprismatic film can also be used in embodiments with a partial or through hole (in particular a notch) such as those described below. Figures 20 to 33 show different ways of integrating the optical device into a glazing unit, which is laminated here. These figures include the following common elements. The laminated glazing unit 100, 100', 200, 201 to 204, 300, 400, 500, 600 includes a first glass sheet 1, a lamination interlayer 3 (possibly with a partial or through hole in the near-infrared transmission window) and a second glass sheet 2 (or plastic such as PC or PMMA). The LIDAR infrared detection system 7 is placed in a housing 8 forming a cover (black), for example made of plastic or metal. The housing 8 is fixed by a fixing means in a removable manner, for example by clipping. The housing 8 is fixed for example (entirely) to the fourth main face 14 of the second glass sheet 2 by the fixing means in a removable manner, for example by clipping. Alternatively, the housing 8 is fixed to a support 80, preferably multifunctional (multi-sensor, with antenna, etc.) fixed (glued) to the fourth main face 14 of the second glass sheet 2. According to another variant, the housing 8 is fixed to the face F4 or to the support 80 and also to an element of the vehicle, for example the roof of the vehicle, in particular to the interior trim of the passenger compartment of the vehicle and / or to the body 160 which is glued to the periphery of the glazing (on face 14 or face 12 if partial hole or on the support 80 if through hole of the glazing) via an adhesive 60. A seal 161 (extrudate etc.) with preferably a lip 162 is between the body 160 and the edge 10 of the glazing (or between the body 160 and the support 80 if applicable see figures 31 and 33). According to various exemplary embodiments, the light source 71 and the detection device 72 are arranged side by side in the reference plane (figure 22 for example), in an oblique plane, in particular normal, to the reference plane (figure 23 for example). The laminated glazing advantageously comprises a masking layer 5 arranged between the first glass sheet 1 and the lamination interlayer 3. The masking layer 5 is bonded to the second internal main face 12 of the first glass sheet 1. The masking layer 5 is also bonded to the main face 38 of the lamination interlayer 3 at least outside the near infrared transmission window 111. The masking layer 5 is opaque to visible and near infrared radiation, for example black, such as a layer of enamel on the face 12 or F2 or a lacquer (on the face F2 or on the interlayer 3).The masking layer 5 may have a masking layer spacing, for example a rectangular or trapezoidal shape with two large horizontal sides 501, 502 and two small sides (see front view figures). This spacing is created for example by a through hole in the glazing (figures 30 to 33). In figures 22, 25, 27 the glazing system comprises a multifunctional support 80 bonded (PU glue etc.) to the main rear face 14 of the laminated glazing, pierced in the near infrared transmission window 111, then comprising an orifice 81 in the extension of the spare part of the masking layer 5. In figures 30 to 33, the support 80 is bonded (PU glue etc.) to the face 12 if partial hole of the glazing or is in a through hole of the glazing. The support 80 is possibly multifunctional, comprises one or more transmission windows in the visible (via an orifice if necessary) and / or a far infrared transmission window (via an orifice preferably). According to an exemplary embodiment (figures 32 and 33), the support 80, itself in the through hole of the glazing 600, is transparent to the radiation of the lidar, the first prism 41 then being placed on the rear face of this support 80, passenger compartment side and the second prism 42 on the front face. According to another exemplary embodiment (figures 30, 31), the support 80, itself in the through hole of the glazing, is opaque and absorbent to the radiation of the lidar, the support comprises a through hole 81 in which is partially arranged the optical device formed of the first prism of triangular section (with an imaginary face of the triangle 45') then a zone of section here rectangular (lateral edges 43' 47'). The first exit face 45 is bonded by glue to the second entry face. As a variant, a monobloc is formed (lateral edges possibly flared outwards). In Figures 20 and 10, according to a first embodiment and its variant, a laminated glazing 100, 100' comprising a first prism 41 and a second prism 42 of triangular sections is shown, in which the first exit face 45 is bonded to the fourth main face 14 by an adhesive 6 transparent to the working wavelength forming a possible camouflage layer and in which the second entry face 46 is bonded to the first main face 11 of glass 1 by an adhesive 6 transparent to the working wavelength forming a possible camouflage layer. This hole-free construction has the advantage of not weakening the structure of the laminated glazing. The shape of the first exit face 45 and second entry face 46 is custom-made (in particular follows the shape of the masking layer 5). In figure 21, the second face 12 of the glazing 100' comprises a camouflage layer 110 in the space delimited by the edges 501, 502 of the masking layer 5. Figures 22 to 26 schematically represent in side sectional view in a second embodiment with different variants a laminated vehicle glazing with in a through hole 4 of the second glass sheet 2 which is not sufficiently transparent. The prisms 41, 42 are of triangular section. The shape of the first exit face 45 preferably follows the shape of the through hole. The hole 4 is closed, that is to say away from the edge of the glazing. The prism 41 is arranged partly in the hole, sometimes on the main inner face 38 (opposite the outer face 39), projecting from the inner face 14 F4 and better from the possible support 80 (perforated). According to the variant illustrated in figure 23, the lamination interlayer 3 of the glazing 201, for example conventional PVB with at least 30% plasticizers, is locally thinned at the right of the through hole 4, to form an upper interlayer 31 bonded on an outer face to the first glass sheet 1 and on the inner face opposite the exit face 28. It is also possible to have alternatively locally at the right of the through hole 4 a sheet of PVB with little or no plasticizer. In the example illustrated in Figure 24, the first prism 41 has a first output face 45 which is bonded to an adhesive layer for example of PVB (with or without plasticizer) or EVA or OCA 31'. A camouflage film 110 is sandwiched between another adhesive layer 31 (for example identical or similar and even of the same thickness as the 3T layer) on the F2 face 12 of the glass 1 and the 3T adhesive layer. In the example illustrated in figure 25, the first prism 41 has an output face 45 which is linked with the face F2 12 by a camouflage adhesive layer 110 (adapted PVB, adapted OCA etc.). In the example illustrated in Figure 26, the first prism 41 has an exit face 45 which is in adhesive contact (directly) with the face F2 12. It is preferred that the first prism 41 be spaced from the walls 401, 402 delimiting the through hole 4. It can be placed before lamination (in particular if the interlayer is kept even thinned) or after lamination (in particular if layer(s) of OCA glue, in particular PSA, i.e. pressure-sensitive). It is preferred to form a continuity (of black for example) between the masking layer 5 and the camouflage layer 110. The saving can be less than the perimeter of the through hole for example at most 10 or 5 mm. It is possible alternatively or cumulatively to have the first prism 41 forming a camouflage element and / or the second prism 42. As a variant of the examples in figures 22 to 26, an insert is placed (in particular forming a camouflage element), in particular made of glass (extra-clear), filling all or part of the through hole 4 onto which the first prism 41 is glued. Figures 31, 33 show a front view of a glazing according to fifth and sixth embodiments. The edges 801, 802, 803, 804 of the support 80 and possibly the edges 401, 402, 403, 404 of the total through hole 4' of the glazing are observed. In Figures 30 and 32, the first prism 41 is mounted on the support 80 inside the vehicle. The shape of the exit face 45 preferably follows the shape of the possible orifice 81 of the support (Figure 30). In particular, the first prism 41 is of a shape adapted to be better fixed via a seal or an adhesive 61' in the orifice 81 of the support 80 (opaque to near infrared). The support 80 is multifunctional, with two visible transmission windows 601, 603 and one 602 in the far infrared, respectively for a sensor (rain humidity), a thermal camera and a visible camera. The windows are for example arranged on the periphery around the first prism 41 (see figures 28, 33). The sensors are for example arranged on the periphery around the lidar. It is also possible to have another near infrared transmission window for certain sensors (rain, or near infrared camera etc.) or even medium infrared. The through hole 4' (like the partial through hole 4 of the glazing) is for example trapezoidal in shape and comprises a first large side 401 or so-called upper longitudinal edge closest to the edge of the upper longitudinal edge of the glazing 10, preferably parallel to this edge 10, with a length of at most 20cm for example 8cm and spaced at least 5cm or 6cm from the edge 10, a second large side 402 or so-called lower longitudinal edge (furthest from the edge of the upper longitudinal edge 10, close to the central zone) parallel to the first large side with a length of at most 25cm or 20cm and preferably greater than that of the first large side for example 14cm, two short sides 403, 404 or straight or oblique lateral edges. The height (between the large sides 401 and 402) is at least 5cm. The through hole 4 may have rounded corners. The through hole 4 or 4' is advantageously in a peripheral central region along the upper longitudinal edge 10 of the laminated glazing forming the windshield. The closed or emerging through hole 4 or 4' may be in another region of the windshield or even in another glazing of the vehicle, in particular the rear window. The edges 501, 502, 503, 504 of the relief are observed in the masking layer 5 and possibly the edges 401, 402, 403, 404 of the through hole in the case of the second embodiment. Figure 29 shows a glazing according to a fourth embodiment in which the laminated glazing comprises a partial hole 4 forming a partial notch through the second sheet 2 of the glazing 400, possibly also of the lamination interlayer 3. The first prism 41 is partially inserted into the notch 4 (first output face 45 bonded by gluing 6 to the face 12 and even forming a camouflage layer) and protrudes from the face F4 14. The first prism 41 may alternatively be a multiprismatic element on the face F1 11. Figures 30 to 33 show glazing according to fifth and sixth embodiments in which the laminated glazing comprises a complete through hole 4' and even here a notch 4' through all the sheets of the glazing 500, 600 in particular the two sheets of glass 1, 2, the lamination interlayer 3 and the masking layer 5. The through hole 4' or notch passes through the first glass sheet 1, the lamination interlayer 3 and the second glass sheet 2 of the laminated glazing. The support 80 is shaped and arranged so as to close the through hole 4'. Preferably, the outer main surface of the support 80 is flush or sub-flush with the outer main surface 11 F1 of the first glass sheet 1 so as to form a continuous outer main surface for the glazing 500, 600 (see fig. 21, 23). The second prism 42 may alternatively be a multiprismatic element on the face F1 11. The outer main surface of the multiprismatic element may be flush or sub-flush with the outer main surface 11 F1 of the first glass sheet 1. The support 80 (too opaque for the lidar) may have an orifice 81 to partially house the first prism 41 and / or the second prism 42 (figure 30). The second prism 42 is fixed on the outside to the multifunction support 80. The sufficiently transparent support 80 can the first prism 41 and the second prism 42 (figure 32). The second prism 42 is fixed on the outside to the multifunction support 80. The support 80 may have the near infrared transmission window 111 for the lidar (figure 32). In this case, the support 80 comprises, for example, a plastic material or a glass transparent to the working wavelength of the lidar. The support 80 is monolithic or laminated, for example laminated with a plastic sheet. The first output face 45 of the first prism 41, for example formed by molding, is fixed, for example, by a glue 6 for example camouflage 110 to the internal face of the support 80. The second entry face 46 of the second prism 42, for example formed by molding, is fixed for example by a glue 6 for example camouflage 110 to the external face of the support 80. According to an advantageous aspect, the support 80 arranged with a partly free external main face (fig. 30, 32) may comprise a hydrophobic external coating which prevents the stagnation of raindrops. Such a hydrophobic coating comprises, for example, fluoropolymer which provides self-cleaning, anti-stain and / or moisture-resistant properties. The support 80 is fixed (laterally) for example by gluing or by a seal 61 to the glazing (to the edge of the glazing in particular). According to a particular aspect applicable to embodiment 500 and especially to embodiment 600 (with transparent support 80), a masking layer 82 (coating) is arranged on the support 80 (possibly transparent), opaque in the visible and in the near infrared, for example black in color. The masking layer 82 protects the glue 60 from UV rays, in particular if necessary. According to a particular aspect applicable to all embodiments, a camouflage layer extends over the surface of the masking layer 5 so as to ensure the continuity of the masking layer 5. The camouflage layer is opaque in the visible, for example black in color, and transparent in the near infrared, in particular at the working wavelength. The camouflage layer is in the form of a sticky or non-sticky film or coating.

Claims

Claims

1. Glazing system comprising a vehicle glazing (100, 200 to 204, 300, 400, 500, 600, 1000 to 1004), the glazing comprising a first glass sheet (1) intended to form the exterior glazing with a first external main face (11) and a second main face (12) facing the passenger compartment, and, when the glazing is laminated, comprising a second glass sheet (2) intended to form the interior glazing with a third main face (13) facing the second main face (12) and a fourth main face (14) facing the passenger compartment, and a lamination interlayer (3) made of polymer material arranged between the second internal main face (12) and the third main face (13), the glazing being intended to form a positive inclination angle (0) and less than 90 degrees relative to a horizontal axis in the vehicle, the angle inclination (0) from the glazing to the horizontal axis,the glazing being capable of receiving an emission beam (70) at said working wavelength from a lidar (7) intended to be arranged in the passenger compartment of the vehicle, the glazing having a near-infrared transmission window (111) at a working wavelength LB1 in a near-infrared range, the emission beam (70) having, in a reference plane which is a lateral section plane of the glazing, a median pointing direction (30) and extending over an internal field of view of determined internal vertical angular aperture (FOV1), the reference plane comprising a normal to the glazing and a vertical axis (Z) in the vehicle, the emission beam (70) at the exit of the glazing having an external field of view of external vertical angular aperture (FOV2), in the near-infrared transmission window, an optical device linked to the glazing, and transparent to the working wavelength, which comprises a first prismatic optical device which is a first prism,having a first input face (43) arranged to receive the near infrared emission beam (70) and in particular a first output face (45), of refractive index n1 at the working wavelength and forming a first angle (a1) with the vertical axis (Z) in the reference plane characterized in that: the optical device comprises a second prismatic optical device (42), in particular a second prism or a multiprismatic element, of refractive index n2 at the working wavelength with n1 greater than or equal to n2 and having at least one second output face (44, 144) forming a second angle (a2) with the vertical axis (Z) in the reference plane distinct from the first angle and in particular at least one second input face (46, 146), second prismatic optical device opposite and in optical contact with the first prism, second output face oriented towards the outside of the glazing,and in that the first prism and the second prismatic optical device are arranged and configured to refract the emission beam (70) such that the external emission beam has an external field of view of angular aperture, vertical so-called external (FOV2) at the exit of the second exit face greater than the vertical angular aperture so-called internal (FOV1) of the internal field of view, the first and second angles, (a1, a2) with the vertical axis (Z) in the reference plane are such that the angle of attack i' of the median direction of pointing of the beam relative to the horizontal axis upstream of the first entry face is negative and at most - 0°, the angle of attack i' going from the horizontal axis to the median direction and that the exit angle i of the median direction of pointing of the beam relative to the horizontal axis at the exit of the second entry face is 0°±5.

2. A glazing system according to claim 1 wherein the first inlet face and the second outlet face are planar.

3. Glazing system according to one of claims 1 or 2 in which the first and second angles (ai 02) are such that the internal vertical angular opening (FOV1) is at most equal to the minimum internal vertical angular opening (FOVImin) +5°.

4. Glazing system according to one of the preceding claims in which the first and / or the second angle (ch, a2), preferably each distinct from 0°, are at least - 0 degrees and preferably at most +60- 0 degrees.

5. Glazing system according to one of the preceding claims in which the second exit face, in particular planar, forms a second angle (a2) equal to 0° with the vertical axis in the reference plane and the first entry face forms a first angle (ch) distinct from 0° with the vertical axis in the reference plane and n1>n2 or in that the first entry face, in particular planar, forms a first angle (ch) equal to 0° with the vertical axis in the reference plane and the second exit face, in particular planar, forms a second angle (a2) distinct from 0° with the vertical axis in the reference plane and n1-n2 less than 0.

2.

6. Glazing system according to one of the preceding claims in which the second optical device is a second prism, the first and / or second prism comprising a part made of material chosen from glass, preferably extra-clear, PC, PMMA, polyacrylate, in particular the first and second prisms form a single block made of material chosen from glass, preferably extra-clear, PC, PMMA, polyacrylate, which is in a zone in particular peripheral with a complete through hole of the glazing.

7. Glazing system according to one of the preceding claims in which the second optical device is a second prism, the first and / or second prism is preferably of triangular section, possibly truncated.

8. Glazing system according to one of claims 1 to 5 in which the second optical device comprises a prismatic element, in particular an element multiprismatic, monodirectional or bidirectional; comprising a plurality of microprisms.

9. Glazing system according to one of the preceding claims in which the first output face and the second input face are bonded to the preferably laminated glazing, the second input face is bonded to the first face by an adhesive or is in adhesive contact, in particular the first output face is bonded to the second or fourth face, or in which the first prism and the second prismatic optical device are at least partially in a through hole of the glazing, in particular forming a notch, preferably laminated glazing, and are bonded to a support, in particular multifunctional, transparent to the working wavelength or bonded by an adhesive transparent to the working wavelength.

10. Glazing system according to one of claims 1 to 7 in which the first exit face and the second entry face are fictitious, the first prism and the second prismatic optical device which is a second prism form a single block in an area of the preferably laminated glazing provided with a complete through hole, partially in the complete through hole, possibly projecting from the first face and / or an inner face of the glazing.

11. Glazing system according to one of the preceding claims in which the glazing is laminated comprising the first glass sheet (1) intended to form the exterior glazing with the first external main face (11) and the second internal main face (12) facing the passenger compartment, a second glass sheet (2) intended to form the interior glazing with a third external main face (13) facing the second internal main face (12) and a fourth internal main face (14) facing the passenger compartment, a lamination interlayer (3) made of polymer material arranged between the second internal main face (12) and the third main face (13), and in which: - the first output face (45) is bonded to the fourth main face (14) by a local glue or is in adhesive contact with the fourth main face - and / or the second input face (46) is bonded to the first main face (11) by a local glue or is in adhesive contact with the first main face.

12. Glazing system according to one of claims 1 to 10 in which the glazing is laminated comprising the first glass sheet (1) intended to form the exterior glazing with the first external main face (11) and the second internal main face (12) facing the passenger compartment, a second glass sheet (2) intended to form the interior glazing with a third external main face (13) facing the second internal main face (12) and a fourth internal main face (14) facing the passenger compartment, a lamination interlayer (3) made of polymer material arranged between the second internal main face (12) and the third main face (13), and in which the laminated glazing comprises a through hole (4) in the thickness of the second glass sheet (2) and of the lamination interlayer (3) in particular forming a partial notch, and in which the first exit face (45) is in adhesive contact with an internal main face (39) of the lamination interlayer (3) and in particular the second entry face (46) is bonded to the first main face (11) by a local adhesive or is in adhesive contact with the first main face.

13. Glazing system according to one of claims 1 to 10 wherein the glazing comprises the laminated glazing comprising the first glass sheet intended to form the exterior glazing with the first external main face (11) and the second internal main face (12) facing the passenger compartment, a second glass sheet (2) intended to form the interior glazing with a third external main face (13) facing the second internal main face (12) and a fourth internal main face (14) facing the passenger compartment, a lamination interlayer (3) made of polymer material arranged between the first glass sheet and the second glass sheet, the lamination interlayer having an external main face (38) bonded to the second internal main face (12) and an internal main face (39) bonded to the third main face (13),and wherein the laminated glazing comprises a through hole (4) in the thickness of the second glass sheet (2), the glazing comprising a part arranged in the through hole (4), the part (49) being made of material, in particular mineral, transparent to the working wavelength, the part (49) having a main connecting surface (91) bonded by a layer of glue with the second main internal face (12) or with the main internal face (39) of the lamination interlayer (3), the part (49) having an internal main surface (92) opposite the main connecting surface (91) and wherein the first exit face (45) is bonded to the main internal surface (92) by a local glue or is in adhesive contact with the main internal surface (92).,

14. Glazing system according to one of claims 1 to 10 wherein the glazing comprises the laminated glazing comprising the first glass sheet (1) intended to form the exterior glazing with the first external main face (11) and the second internal main face (12) facing the passenger compartment, a second glass sheet (2) intended to form the interior glazing with a third external main face (13) facing the second internal main face (12) and a fourth internal main face (14) facing the passenger compartment, a lamination interlayer (3) made of polymer material arranged between the second internal main face (12) and the third main face (13), the lamination interlayer (3) having an external main face (38) bonded to the second internal main face (12) and an internal main face (39) bonded to the third external main face (13),the laminated glazing comprises a through hole (4') in the thickness of the glazing, in particular forming a notch, the first prism and the second optical device, prismatic are in the area of said through hole, in particular linked to a support, in particular multifunctional in said through hole, for example are on either side on the support transparent to the working wavelength or are at least partially in an orifice of the support linked together by an adhesive or forming a single block.

15. Glazing system according to the preceding claim in which the second optical device, in particular a multiprismatic element, is flush or sub-flush with the first main face.

16. Glazing system according to one of the preceding claims in which the glazing comprises a peripheral masking layer (5) bonded to the second main face (12) and in which the near infrared transmission window is in an opening of the masking layer (5) and / or in which another masking layer (82) is on a main surface of a support (9) in particular multifunctional, in particular in a through hole of the laminated glazing, and the support comprises the near infrared transmission window possibly in an opening of the other masking layer (5) and even of the support.

17. Glazing system according to one of the preceding claims in which it comprises a support (80), in particular transparent to the working wavelength, in particular extra-clear glass or polymer, comprising the near-infrared transmission window, possibly via an orifice, support (80) possibly carrying the optical device, and comprising at least one other transmission window in the visible and / or in the infrared, in particular medium and / or far infrared, support on an inner face of the glazing or in a through-hole zone of the glazing.

18. Glazing system according to one of the preceding claims wherein in the near infrared transmission window, the glazing comprises a functional layer which is a camouflage layer, in particular arranged in the opening of a masking layer, in particular an adhesive camouflage layer, bonding the first output face to the inner main surface of the glazing or to the main face of a support (80) in a through hole of the glazing and / or bonding the second input face to the first outer main face of the glazing or to the outer main face of a support (80) in a through hole of the glazing or bonding the first output face and the second input face.

19. Glazing system according to one of the preceding claims in which it comprises a lidar infrared detection system (7) at said working wavelength, the lidar detection system comprising a light source (71) and a detection device (72), the light source (71) being capable of generating the near infrared emission beam (70), the detection device (72) being capable of detecting reflected radiation in at least a part of the external field of view.

20. Glazing system according to the preceding claim in which the internal vertical angular opening (FOV1) is less than or equal to 20 degrees

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