VEHICLE OPTICAL UNIT WITH REFERENCE LIGHT GUIDE

Abstract

An optical unit (OU) equips a vehicle and comprises at least a first mask (M1), a reflector (RP), a flat-type light guide (GL), and an electronic board (EB) equipped with components involved in the controlled generation of photons that feed the light guide (GL) to perform at least one photometric function. The first mask (M1), reflector (RP), and electronic board (EB) are positioned relative to, and coupled to, the light guide (GL), which serves as their reference component and forms part of an assembly (EA) with them (M1, RP, EB). Figure 1

Description

Title of the invention: VEHICLE OPTICAL UNIT, WITH REFERENCE LIGHT GUIDE Technical field of the invention

[0001] The invention relates to optical units which are intended to equip vehicles and which must provide at least one photometric function. State of the art

[0002] Certain vehicles, generally of the automobile type, comprise at least one optical unit comprising a housing in which are installed at least one mask, a reflector, a flat type light guide, and an electronic card provided with components capable of participating in the controlled generation of photons to power the light guide to participate in at least one photometric function. For example, this photometric function may be a brake light and / or sidelight function.

[0003] Currently, in most of the optical blocks presented above, the light guide and the electronic card are secured to at least one dedicated support piece which is then fixedly installed inside the housing, and the mask(s) and the reflector are also fixedly installed inside the housing. In other words, the support piece serves as a reference piece for the precise relative positioning of the light guide with respect to the electronic card, and the housing serves as a reference piece for the precise relative positioning of the mask(s) and reflector with respect to the support piece and therefore with respect to the light guide.

[0004] This requires the provision of numerous fixing means, such as screws and clipping elements, and may also require welding and / or gluing operations. This results in a more complex architecture of the housing, and requires the provision of free spaces in the housing in order to allow the welding, gluing, screwing and clipping operations to be carried out, which increases the volume of the optical unit and therefore makes it more difficult to integrate into a vehicle. In addition, this makes the assembly of the optical unit more complex and more time-consuming, and therefore increases the manufacturing cost of this optical unit.

[0005] The invention therefore aims in particular to improve the situation. Presentation of the invention

[0006] It proposes in particular for this purpose an optical unit, on the one hand, intended to equip a vehicle, and, on the other hand, comprising at least a first mask, a reflector, a flat type light guide, and an electronic card provided with components capable of participating in a controlled generation of photons to power the light guide. to participate in at least one photometric function.

[0007] This optical block is characterized by the fact that its first mask, reflector and electronic card are positioned relative to, and coupled to, the light guide which serves as their reference part and participates with them in an assembled assembly.

[0008] Thanks to the invention, the architecture of the housing is simpler and the assembly of the optical unit is significantly less complex and less time-consuming, which makes it possible, in particular, to reduce the manufacturing cost of the optical unit.

[0009] The optical unit according to the invention may include other characteristics which may be taken separately or in combination, and in particular:

[0010] - its light guide may comprise at least first, second and third coupling and / or positioning elements, its first mask may comprise fourth coupling and / or positioning elements capable of cooperating with the first coupling and / or positioning elements to position and / or immobilize it relative to the light guide, its reflector may comprise fifth coupling and / or positioning elements capable of cooperating with the second coupling and / or positioning elements to position and / or immobilize it relative to the light guide, and its electronic card may comprise sixth coupling and / or positioning elements capable of cooperating with the third coupling and / or positioning elements to position and / or immobilize it relative to the light guide;

[0011] - in the presence of the first option, its light guide may comprise a first face provided with at least one rib defining by a first shape a first part of the first coupling and / or positioning elements dedicated to positioning and in which a second part of the first coupling and / or positioning elements is defined. In this case, its first mask may comprise a first wall, on the one hand, defining by a second shape a part of the fourth coupling and / or positioning elements, this second shape being substantially homologous to the first shape so that the first wall is placed substantially against the rib, and, on the other hand, provided with another part of the fourth coupling and / or positioning elements;

[0012] - in the presence of the last sub-option, the rib can be defined by the first form at least a portion of the second coupling and / or positioning elements dedicated to positioning. In this case, its reflector may comprise a front portion defining by a third shape at least a portion of the fifth coupling and / or positioning elements dedicated to positioning, this third shape being substantially homologous to the first shape so that the front portion is placed substantially against the rib;

[0013] - its first mask may comprise a first internal face oriented towards a first face of the light guide. In this case, it may also comprise a second mask comprising a second internal face oriented towards a second face of the light guide, opposite the first face of the light guide, and positioned relative to, and coupled to, the light guide in order to participate in the assembled assembly;

[0014] - in the presence of the last sub-option, its light guide may comprise seventh coupling and / or positioning elements. In this case, its second mask may comprise eighth coupling and / or positioning elements capable of cooperating with the seventh coupling and / or positioning elements to position and / or immobilize it relative to the light guide;

[0015] - in the presence of the last sub-option, its light guide may comprise a technical wall equipped with the seventh coupling and / or positioning elements;

[0016] - also in the presence of the last sub-option, its second mask can include ninth coupling and / or positioning elements. In this case, its reflector may comprise a second wall provided with tenth coupling and / or positioning elements capable of cooperating with the ninth coupling and / or positioning elements to position and / or immobilize it relative to the second mask;

[0017] - its reflector and electronic card can be coupled together in order to define a pre-assembled sub-assembly constituting a sub-part of the assembled assembly;

[0018] - the photometric function can be a stop light and / or sidelight function.

[0019] The invention also proposes a vehicle, possibly of the automobile type, and comprising at least one optical unit of the type presented above. Brief description of the figures

[0020] Other characteristics and advantages of the invention will appear on examining the detailed description below, and the attached drawings (obtained in CAD / CAM (“Computer Aided Design / Computer Aided Drawing”)), in which:

[0021] [Fig-1] schematically illustrates, in a perspective view from the front side, a example of an assembly of an example of an optical unit according to the invention,

[0022] [Fig.2] schematically illustrates, in a perspective view from the rear side, the light guide of the optical block of [Fig.l], before assembly,

[0023] [Fig.3] schematically illustrates, in a perspective view from the rear side, a part of the light guide of figures 1 and 2, before assembly,

[0024] [Fig.4] schematically illustrates, in a perspective view from the rear side, the light guides and first mask of the optical block of [Fig.l], before assembly,

[0025] [Fig.5] schematically illustrates, in a perspective view from the rear side, a small part of the light guides and first mask of the optical block of [Fig.l], assembled together,

[0026] [Fig.6] schematically illustrates, in a perspective view from the rear side, a part of the second mask of [Fig.l], before assembly,

[0027] [Fig.7] schematically illustrates, in a perspective view from above, the relative positioning of the reflector of [Fig.l] with respect to the light guide, before assembly of the first and second masks and the electronic card.

[0028] [Fig.8] schematically illustrates, in a perspective view from the rear side, a part of the assembled assembly of [Fig.l], after assembly of the first and second masks to the light guide and just before assembly on the latter of the pre-assembled sub-assembly comprising the reflector, the electronic card and a heat shield,

[0029] [Fig.9] schematically illustrates, in a perspective view from the rear side, a part of the assembled assembly of [Fig.l], in the absence of the reflector, and

[0030] [Fig. 10] schematically illustrates, in a side perspective view and partially in section in a vertical and longitudinal plane, a part of the assembled assembly of [Fig.l]. Detailed description of the invention

[0031] The invention aims in particular to propose an optical unit BO intended to equip a vehicle and capable of ensuring at least one photometric function by means of a flat type light guide GL and serving as a reference part (or referent) within an assembled assembly EA.

[0032] It is considered in the following, by way of non-limiting example, that the optical unit BO is intended to equip a motor vehicle, such as for example a car. But the invention is not limited to this type of vehicle. Indeed, the optical unit BO can equip any vehicle (land, sea (or river), or air) which must have at least one photometric function by means of a light guide.

[0033] Furthermore, it is considered in the following, by way of non-limiting example, that the optical unit BO constitutes a rear light of a vehicle. But it could constitute a front headlight (or projector) (when it also provides at least one photometric lighting function), or a front light of a vehicle, for example.

[0034] In the above and the following, the notion of "front" is defined in relation to the place where the photons participating in a photometric function exit, and the notion of "rear" is defined in relation to the place which is opposite to that where the photons participating in a photometric function exit. Consequently, the front face of an element is oriented towards the outside, while the rear face of this element is oriented towards the inside and opposite the front face.

[0035] In Figures 1 to 10 the X direction is intended to be parallel to the longitudinal direction. longitudinal direction of the vehicle, which is substantially parallel to the lateral (or longitudinal) sides comprising the side doors, the Y direction is intended to be parallel to the transverse direction of the vehicle and perpendicular to the longitudinal direction X, and the Z direction is intended to be parallel to the vertical direction of the vehicle and perpendicular to the longitudinal directions X and transverse directions Y.

[0036] [Fig.l] schematically illustrates an example of an embodiment of an assembled assembly EA intended to form part of an example of an optical unit BO according to the invention, and more precisely to be installed in a housing (not illustrated) of the latter (BO), possibly upstream of a protective glass.

[0037] As illustrated at least partially in Figures 1 and 8 to 10, an assembled assembly EA of an optical block BO according to the invention comprises at least one light guide GL, a first mask M1, a reflector RD and an electronic card CE.

[0038] The electronic card CE is provided with components (partially illustrated) which are suitable for participating in the controlled generation of photons which must supply the light guide GL in the vicinity of its rear face FR to participate in at least one photometric function.

[0039] For example, this photometric function may be a signaling function. As an illustrative (and therefore non-limiting) example, this signaling function may be a stop light and / or sidelight function. But it could be a reversing light function or a direction indicator (or flashing) function, for example.

[0040] Also for example, the electronic card CE may comprise at least one photon source not illustrated and suitable for generating the photons which must participate in the photometric function and supplying the light guide GL, and components and / or electronic circuit(s) making it possible to control the supply and operation of this (each) photon source.

[0041] Also for example, the (each) photon source may comprise at least one light-emitting diode (or LED). But as a variant the (each) photon source may comprise at least one laser diode or a gas laser.

[0042] It will be noted that the choice of the (each) photon source may depend on the photometric function.

[0043] Also for example, the CE electronic card can be a printed circuit board of the PCB type (“Printed Circuit Board”).

[0044] The light guide GL is of the flat type and is capable of participating in the (each) aforementioned photometric function when it is supplied with photons originating from the (each) photon source and reflected towards its rear face FR by the reflector RP. The latter (RP) therefore comprises at least one rear part located close to the rear face FR of the light guide GL and of the zone of the electronic card CE comprising the (each) photon source, as illustrated non-limitingly in figures 8 and 10.

[0045] It will be noted that the light guide GL is arranged so as to guide the photons, which it receives at its rear face FR, towards a front face FV through which they exit to reach the outside for example after passing through any protective glass.

[0046] In addition, the light guide GL is arranged so as to serve as a reference part (or referent) for the other elements of its assembled assembly EA, namely the first mask M1, the reflector RD and the electronic card CE, as well as possibly, as illustrated non-limitingly, a second mask M2 and a heat shield ET. Consequently, the first mask M1, the reflector RP and the electronic card CE (as well as possibly the second mask M2) are positioned relative to, and coupled to, the light guide GL. In this way, the light guide GL, the first mask M1, the reflector RD and the electronic card CE, as well as possibly the second mask M2 and the heat shield ET all participate in an assembled assembly EA.It will be understood that this assembled assembly EA can be handled without risk of detachment or partial disassembly of one of its elements, and can be assembled before arriving on an optical block manufacturing line, and therefore before being connected to the connectors and fixedly installed in the housing of an optical block BO.

[0047] This makes it possible to significantly reduce the number of fixing means that need to be defined and / or used in the housing and to dispense with the dedicated support part. Consequently, the architecture of the housing is simpler and the assembly of the optical unit BO is significantly less complex and less time-consuming, and therefore the manufacturing cost of the optical unit BO is reduced. In addition, the invention makes it possible to constitute a compact assembled assembly EA, and therefore to reduce the volume of the optical unit BO, thus facilitating its integration into a vehicle.

[0048] In order to enable the production of the assembled assembly EA, the light guide GL may comprise at least first ECP1, second ECP2 and third ECP3 coupling and / or positioning elements, the first mask M1 may comprise fourth coupling and / or positioning elements ECP4, the reflector RP may comprise fifth coupling and / or positioning elements ECP5, and the electronic card CE may comprise sixth coupling and / or positioning elements ECP6, for example and as illustrated non-limitingly and at least partially in FIGS. 2 to 4 and 6 to 10.

[0049] In the following and the preceding, the term “coupling and / or positioning element” means an element (or physical means) participating either only in a coupling, or only in a positioning, or even both in a coupling and in a positioning. Such an element may therefore be in the form of a through hole or a slot or a passage or a chute or a support tab or a clipping tab or a clipping hole or an element such as a rib having a particular shape, for example.

[0050] As illustrated non-limitingly and at least partially in Figures 2 to 4, the fourth coupling and / or positioning elements ECP4 of the first mask M1 are capable of cooperating with the first coupling and / or positioning elements ECP1 to position and / or immobilize the first mask M1 relative to the light guide GL.

[0051] In the example illustrated non-limitingly and at least partially in Figures 2 to 4, the first coupling and / or positioning elements ECP1 comprise at least two through holes and a passage (or chute) defined in at least one rib N (which will be discussed later), and the fourth coupling and / or positioning elements ECP4 comprise at least two tabs (or protuberances) and a finger passing respectively through the two through holes ECP1 and the passage ECP1. This makes it possible to ensure precise coupling and positioning along at least the transverse Y and vertical Z directions.

[0052] As illustrated non-limitingly and at least partially in Figures 2 to 5, 7 and 8, the fifth coupling and / or positioning elements ECP5 of the reflector RP are capable of cooperating with the second coupling and / or positioning elements ECP2 to position and / or immobilize the reflector RP relative to the light guide GL.

[0053] In the example illustrated non-limitingly and at least partially in Figures 2 to 5, 7 and 8, the second coupling and / or positioning elements ECP2 comprise at least five first zones delimited by at least one (the) rib N, and the fifth coupling and / or positioning elements ECP5 comprise at least five second zones defined in a front part of the reflector RP and of shapes substantially homologous respectively to the shapes of the first five zones ECP2 so as to be housed precisely in the latter (ECP2). This makes it possible to ensure precise coupling and positioning in the longitudinal X, transverse Y and vertical Z directions.

[0054] As illustrated non-limitingly and at least partially in Figures 2 to 5, 8 and 9, the sixth coupling and / or positioning elements ECP6 of the electronic card CE are capable of cooperating with the third coupling and / or positioning elements ECP3 to position and / or immobilize the electronic card CE relative to the light guide GL.

[0055] In the example illustrated non-limitingly and at least partially in Figures 2 to 5, 8 and 9, the third coupling and / or positioning elements ECP3 com take at least three support legs PS, and the sixth coupling and / or positioning elements ECP6 comprise at least three third zones defined in a front part of the electronic card CE and suitable for resting respectively on the support legs PS. These support legs PS can be defined on a technical wall PTG which the light guide GL comprises, for example in its rear part comprising its rear face FR.

[0056] It will be noted that in the example illustrated non-limitingly and at least partially in [Fig. 9], the third coupling and / or positioning elements ECP3 also comprise at least three stops BP on which at least three fourth zones ECP6' respectively rest, defined in a front part of the electronic card CE and capable of abutting respectively against the stops BP. For this purpose, the fourth zones ECP6' may be notches defined in the front part of the electronic card CE and defining housings for the stops BP. This makes it possible to reinforce the coupling and the precise positioning of the electronic card CE in the longitudinal X and transverse Y directions relative to the light guide GL. The three stops BP may be defined on the technical wall PTG of the light guide GL, respectively near the support tabs PS.

[0057] Also for example, and as illustrated non-limitingly and at least partially in Figures 2 to 5, 8 and 9, the light guide GL may comprise a first face FG1 provided with at least one (the) rib N which defines by its first shape a first part of the first coupling and / or positioning elements ECP1 which is dedicated to the positioning of a first wall PMI (rear) of the first mask M1, and in which is defined a second part of the first coupling and / or positioning elements ECP1 (namely here the two through holes and the passage), as indicated above.In this case, the first mask M1 may comprise the first wall PMI, on the one hand, which defines by its second shape a part of the fourth coupling and / or positioning elements ECP4, this second shape being substantially homologous to the first shape so that the first rear wall PMI is placed substantially against the rib N, and, on the other hand, provided with another part of the fourth coupling and / or positioning elements ECP4 (namely here the two tabs and the finger).

[0058] It will be noted that in the illustrated example only a single rib N of great length is defined on the first face FG1 of the light guide GL, but several (at least two) ribs could be defined on this first face FG1.

[0059] It will also be noted that in the example illustrated the front part of the light guide GL is intended to be installed substantially horizontally (XY plane), and the first mask M1 is installed above the first face FG1 which is therefore an upper face of the light guide GL. The first mask M1 therefore comprises a first internal face Fil installed opposite, and partly against, the first face FG1. But in a first variant, the first internal face Fil of the first mask Ml could be installed opposite, and partly against, the second face FG2 of the light guide GL opposite its first face FG1 and therefore constituting a lower face of the light guide GL. In a second variant, the front part of the light guide GL could be intended to be installed substantially vertically (YZ plane), and in this case the first mask Ml could be installed to the left or to the right of the light guide GL.

[0060] Also for example, and as illustrated non-limitingly and at least partially in Figures 2 to 5, 8 and 9, the (each) rib N can define by its first shape at least a part of the second coupling and / or positioning elements ECP2 which is dedicated to positioning. In this case, the reflector RP can comprise a front part PVR which defines by its third shape at least a part of the fifth coupling and / or positioning elements ECP5 which is dedicated to positioning. This third shape is substantially homologous to the first shape so that the front part PVR of the reflector RP is placed substantially against the rib N. This makes it possible to ensure precise coupling and positioning of the reflector RP along the longitudinal X, transverse Y and vertical Z directions relative to the light guide GL.

[0061] Also for example, and as illustrated non-limitingly and at least partially in Figures 1, 6, and 8 to 10, the assembled assembly EA may comprise a second mask M2, as mentioned above. This second mask M2 comprises a second internal face FI2 oriented towards the second face FG2 of the light guide GL (opposite its first face FG1), and is positioned relative to, and coupled to, the light guide GL in order to participate in the assembled assembly EA. In this case, the light guide GL is partially framed by the first M1 and second M2 masks (here respectively on its first upper face FG1 and second lower face FG2). But, as indicated above, the assembled assembly EA could not comprise a second mask M2.

[0062] Also for example, and as illustrated non-limitingly and at least partially in Figures 2 to 6 and 9, the light guide GL may comprise seventh coupling and / or positioning elements ECP7, and the second mask M2 may comprise eighth coupling and / or positioning elements ECP8. The latter (ECP8) are capable of cooperating with the seventh coupling and / or positioning elements ECP7 to position and / or immobilize the second mask M2 relative to the light guide GL.

[0063] In the example illustrated non-limitingly and at least partially in Figures 2 to 5, 7 and 8, the seventh coupling and / or positioning elements ECP7 com take at least two through holes and one slot, and the eighth coupling and / or positioning elements ECP8 comprise at least three tabs (or protrusions) passing respectively through the two through holes ECP7 and the slot ECP7. This ensures precise coupling and positioning in at least the transverse Y and vertical Z directions.

[0064] Also for example, and as illustrated non-limitingly and at least partially in Figures 2 to 5 and 7 to 10, the technical wall PTG of the light guide GL can be provided with the seventh coupling and / or positioning elements ECP7.

[0065] Also for example, and as illustrated non-limitingly and at least partially in Figures 6 and 8 to 10, the second mask M2 may comprise ninth coupling and / or positioning elements ECP9, and the reflector RP may comprise a second wall PR2 provided with tenth coupling and / or positioning elements ECP10. The latter (ECP10) are capable of cooperating with the ninth coupling and / or positioning elements ECP9 to position and / or immobilize the reflector RP relative to the second mask M2. This arrangement advantageously makes it possible to fix the second mask M2 and the reflector RP in a fixed and simultaneous manner relative to the light guide GL.

[0066] In the example illustrated non-limitingly and at least partially in Figures 6 and 8 to 10, the ninth coupling and / or positioning elements ECP9 comprise at least two tabs each comprising a clipping hole, and the tenth coupling and / or positioning elements ECP10 comprise in the rear part of the reflector RP at least two clipping tabs which clip into the corresponding clipping holes ECP9.

[0067] It will be noted that in the example illustrated the front part of the electronic card CE also comprises at least two through holes TT which are crossed respectively by the clipping tabs ECP10 in order to allow the latter to clip into the corresponding clipping holes ECP9. This advantageously makes it possible to securely fasten the reflector RP and the second mask M2 with respect to the electronic card CE, while immobilizing the electronic card CE with respect to the light guide GL, and thus to reinforce the quality of the assembled assembly EA.

[0068] For example, and as illustrated non-limitingly in [Fig. 8], the reflector RP and the electronic card CE can be coupled together in order to define a pre-assembled sub-assembly constituting a sub-part of the assembled assembly EA. It will be understood that this pre-assembled sub-assembly is then assembled at least to the light guide GL, as well as possibly to the first mask M1 and / or to the possible second mask M2 which has / have been previously assembled to the light guide GL. This makes it possible to simplify the complete assembly of the assembled assembly EA.

[0069] It will be noted that in the example illustrated non-limitingly in Figures 1, 8 and 10 the The pre-assembled sub-assembly also includes a heat shield ET fixedly secured, for example by clipping and / or screwing, to the face (here lower) of the electronic card CE which is opposite the reflector RP. But such a heat shield ET could be dispensed with.

[0070] It will also be noted that the first M1 and second M2 masks, the reflector RP and the light guide GL can be produced by injection molding of rigid and preferably strong plastic material(s), such as for example polycarbonate (or PC). Similarly, the housing and the possible protective glass can be produced by injection molding of a rigid and strong plastic material, such as for example polycarbonate (or PC).

Claims

Claims

1. Optical unit (BO) suitable for equipping a vehicle and comprising at least a first mask (Ml), a reflector (RP), a flat-type light guide (GL), and an electronic card (CE) provided with components suitable for participating in a controlled generation of photons to supply said light guide (GL) to participate in at least one photometric function, characterized in that said first mask (Ml), reflector (RP) and electronic card (CE) are positioned relative to, and coupled to, said light guide (GL) which serves as a reference part for them and participates with them (Ml, RP, CE) in an assembled assembly (EA).

2. Optical unit according to claim 1, characterized in that i) said light guide (GL) comprises at least first (ECP1), second (ECP2) and third (ECP3) coupling and / or positioning elements, ii) said first mask (Ml) comprises fourth coupling and / or positioning elements (ECP4) suitable for cooperating with said first coupling and / or positioning elements (ECP1) to position and / or immobilize it relative to said light guide (GL), iii) said reflector (RP) comprises fifth coupling and / or positioning elements (ECP5) suitable for cooperating with said second coupling and / or positioning elements (ECP2) to position and / or immobilize it relative to said light guide (GL),and iv) said electronic card (CE) comprises sixth coupling and / or positioning elements (ECP6) capable of cooperating with said third coupling and / or positioning elements (ECP3) to position and / or immobilize it relative to said light guide (GL).,

3. Optical block according to claim 2, characterized in that i) said light guide (GL) comprises a first face (FG1) provided with at least one rib (N) defining by a first shape a first part of said first coupling and / or positioning elements (ECP1) dedicated to positioning and in which is defined a second part of said first coupling and / or positioning elements (ECP1), and ii) said first mask (Ml) comprises a first wall (PMI), on the one hand, defining by a second shape a part of said fourth coupling and / or positioning elements (ECP4), this second shape being substantially homologous to said first shape so that said first wall (PMI) is placed substantially against said rib (N), and, on the other hand, provided with another part of said fourth coupling and / or positioning elements (ECP4).

4. Optical unit according to claim 3, characterized in that i) said rib (N) defines by said first shape at least a part of said second coupling and / or positioning elements (ECP2) dedicated to positioning, and ii) said reflector (RP) comprises a front part (PVR) defining by a third shape at least a part of said fifth coupling and / or positioning elements (ECP5) dedicated to positioning, this third shape being substantially homologous to said first shape so that said front part (PVR) is placed substantially against said rib (N).

5. Optical block according to one of claims 1 to 4, characterized in that said first mask (Ml) comprises a first internal face (Fil) oriented towards a first face (FG1) of said light guide (GL), and in that it comprises a second mask (M2) comprising a second internal face (FI2) oriented towards a second face (FG2) of said light guide (GL), opposite to said first face (FG1), and positioned relative to, and coupled to, said light guide (GL) in order to participate in said assembled assembly (EA).

6. Optical unit according to claim 5, characterized in that i) said light guide (GL) comprises seventh coupling and / or positioning elements (ECP7), and ii) said second mask (M2) comprises eighth coupling and / or positioning elements (ECP8) capable of cooperating with said seventh coupling and / or positioning elements (ECP7) to position and / or immobilize it relative to said light guide (GL).

7. Optical unit according to claim 6, characterized in that said light guide (GL) comprises a technical wall (PTG) provided with said seventh coupling and / or positioning elements (ECP7).

8. Optical unit according to claim 6 or 7, characterized in that said second mask (M2) comprises ninth coupling and / or positioning elements (ECP9), and in that said reflector (RP) comprises a second wall (PR2) provided with tenth coupling and / or positioning elements (ECP10) capable of cooperating with said ninth coupling and / or positioning elements (ECP9) to position and / or immobilize it relative to said second mask (M2).

9. Optical unit according to one of claims 1 to 8, characterized in that said reflector (RP) and electronic card (CE) are coupled together in order to define a pre-assembled sub-assembly constituting a sub-part of said assembled assembly (EA).

10. Vehicle, characterized in that it comprises at least one optical unit (BO) according to one of claims 1 to 9.

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