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 participate in 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 blocks intended to equip vehicles and required to perform at least one photometric function. State of the art

[0002] Certain vehicles, generally automobiles, include at least one optical unit comprising a housing in which are installed at least one mask, a reflector, a flat light guide, and an electronic board equipped with components for the controlled generation of photons to power the light guide in order to perform at least one photometric function. For example, this photometric function may be a brake light and / or parking light function.

[0003] Currently, in most of the optical blocks described above, the light guide and the electronic board are attached at least to a dedicated support piece which is then permanently installed inside the housing, and the mask(s) and reflector are also permanently 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 board, 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 necessitates the provision of numerous fastening methods, such as screws and clips, and may also require welding and / or bonding operations. This results in a more complex housing design and requires the provision of free spaces within the housing to allow for welding, bonding, screwing, and clipping operations, which increases the volume of the optical unit and therefore makes it more difficult to integrate into a vehicle. Furthermore, this makes the assembly of the optical unit more complex and time-consuming, thus increasing its manufacturing cost.

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

[0006] In particular, it proposes 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 board equipped with components specific to participate in a controlled generation of photons to power the light guide in order to participate in at least one photometric function.

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

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

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

[0010] - its light guide may include at least first, second and third coupling and / or positioning elements, its first mask may include fourth coupling and / or positioning elements designed to cooperate with the first coupling and / or positioning elements to position and / or immobilize it relative to the light guide, its reflector may include fifth coupling and / or positioning elements designed to cooperate with the second coupling and / or positioning elements to position and / or immobilize it relative to the light guide, and its electronic board may include sixth coupling and / or positioning elements designed to cooperate 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 include 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 is defined a second part of the first coupling and / or positioning elements. In this case, its first mask may include 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 forms at least a part of the second coupling and / or positioning elements dedicated to positioning. In this case, its reflector may include a front part defining by a third shape at least a part 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 part is placed substantially against the rib;

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

[0014] - in the presence of the last sub-option, its light guide may include seventh coupling and / or positioning elements. In this case, its second mask may include eighth coupling and / or positioning elements designed to cooperate 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 include 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 include a second wall equipped with tenth coupling and / or positioning elements designed to cooperate with the ninth coupling and / or positioning elements to position and / or immobilize it relative to the second mask;

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

[0018] - the photometric function can be a brake light and / or parking light function.

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

[0020] Other features and advantages of the invention will become apparent from an examination of the detailed description below, and the accompanying drawings (obtained using CAD / CAM (“Computer-Aided Design / Computer-Aided Manufacturing”)), 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 block according to the invention,

[0022] [Fig.2] schematically illustrates, in a perspective view from the rear, the light guide of the optical block of [Fig. 1], before assembly,

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

[0024] [Fig.4] schematically illustrates, in a perspective view from the rear, the light guide and first mask of the optical block of [Fig.1], before assembly,

[0025] [Fig.5] schematically illustrates, in a perspective view from the rear side, a small part of the light guide and first mask of the optical block of [Fig.1], assembled together,

[0026] [Fig.6] schematically illustrates, in a perspective view from the rear, a part of the second mask of [Fig.1], before assembly,

[0027] [Fig.7] schematically illustrates, in a perspective view from above, the relative positioning of the reflector of [Fig.1] with respect to the light guide, before assembly of the first and second masks and the electronic board.

[0028] [Fig.8] schematically illustrates, in a perspective view from the rear, a part of the assembled unit of [Fig.1], 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 board and a thermal screen,

[0029] [Fig.9] schematically illustrates, in a perspective view from the rear, part of the assembled unit of [Fig.1], 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 set of [Fig.1]. Detailed description of the invention

[0031] The invention aims in particular to provide an optical block 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 piece (or reference) within an assembled assembly EA.

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

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

[0034] In the preceding and following text, the notion of "front" is defined with respect to the location where the photons participating in a photometric function emerge, and the notion of "back" is defined with respect to the location opposite to that where the photons participating in a photometric function emerge. Consequently, the front face of an element is oriented towards the outside, while the back face of this element is oriented inwards and opposite to the front face.

[0035] In figures 1 to 10, the X direction is intended to be parallel to the 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 direction X and the transverse direction Y.

[0036] Figure [1] schematically illustrates an example of an assembly EA intended to be part of an example of an optical block BO according to the invention, and more specifically 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 set 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 board CE.

[0038] The electronic board CE is equipped with components (partially illustrated) which are suitable for participating in the controlled generation of photons to 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 can be a signaling function. By way of illustration (and therefore not limitation), this signaling function can be a brake light and / or parking light function. But it could also be a reversing light function or a turn signal (or indicator) function, for example.

[0040] Also, for example, the electronic board CE may include at least one photon source not shown and suitable for generating the photons to participate in the photometric function and supplying the light guide GL, and electronic components and / or circuit(s) allowing control of the supply and operation of this (each) photon source.

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

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

[0043] Also, for example, the CE electronic board 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 suitable for participating in the (each) aforementioned photometric function when it is supplied with photons from the (each) photon source and reflected towards its rear face FR by the reflector RP. The latter (RP) therefore comprises at least a rear portion located near the rear face FR of the light guide GL and the area of ​​the electronic board CE comprising the (each) photon source, as illustrated, without limitation, in Figures 8 and 10.

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

[0046] Furthermore, the light guide GL is arranged to serve as a reference piece (or datum) for the other elements of its assembled unit EA, namely the first mask M1, the reflector RD, and the electronic board CE, as well as optionally, as illustrated but not limited to, a second mask M2 and a thermal shield ET. Consequently, the first mask M1, the reflector RP, and the electronic board CE (as well as optionally 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 board CE, as well as optionally the second mask M2 and the thermal shield ET, all participate in an assembled unit EA.It will be understood that this assembled EA unit 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 significantly reduces the number of fastening means that need to be defined and / or used in the housing and eliminates the need for a dedicated support piece. Consequently, the housing architecture is simpler, and the assembly of the optical block is significantly less complex and time-consuming, thus reducing the manufacturing cost of the optical block. Furthermore, the invention allows for a compact EA assembly, thereby reducing the volume of the optical block and facilitating its integration into a vehicle.

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

[0049] In the following and preceding text, the term "coupling and / or positioning element" means an element (or physical means) participating either solely in coupling, solely in positioning, or both in coupling and positioning. Such an element may therefore be in the form of a through hole, slot, passage, channel, support tab, clipping tab, 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 Ml are adapted to cooperate with the first coupling and / or positioning elements ECP1 to position and / or immobilize the first mask Ml relative to the light guide GL.

[0051] In the example illustrated, but not limited to 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 channel) 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 protrusions) and a finger passing through the two through holes ECP1 and the passage ECP1, respectively. This ensures precise coupling and positioning along at least the transverse Y and vertical Z directions.

[0052] As illustrated, but not limited to 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 adapted to cooperate 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, without limitation 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 forward portion 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 within the latter (ECP2). This ensures precise coupling and positioning along the longitudinal X, transverse Y and vertical Z directions.

[0054] As illustrated, but not limited to and at least partially, in Figures 2 to 5, 8 and 9, the sixth coupling and / or positioning elements ECP6 of the board CE electronics are designed to cooperate with the third coupling and / or positioning elements ECP3 to position and / or immobilize the CE electronic board relative to the GL light guide.

[0055] In the example illustrated, but not limited to, and at least partially shown in Figures 2 to 5, 8 and 9, the third coupling and / or positioning elements ECP3 comprise at least three PS support tabs, and the sixth coupling and / or positioning elements ECP6 comprise at least three third zones defined in a front portion of the CE electronic board and adapted to bear against the PS support tabs. These PS support tabs may be defined on a PTG technical wall comprising the light guide GL, for example in its rear portion including its rear face FR.

[0056] It should be noted that in the example illustrated, but not limited to and at least partially, in [Fig. 9], the third coupling and / or positioning elements ECP3 also include at least three stops BP against which at least three fourth zones ECP6', defined in a front portion of the CE electronic board and adapted to butt against the stops BP, respectively bear. For this purpose, the fourth zones ECP6' can be notches defined in the front portion of the CE electronic board and defining recesses for the stops BP. This allows for enhanced coupling and precise positioning of the CE electronic board along the longitudinal X and transverse Y directions relative to the light guide GL. The three stops BP can 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 include 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 (back) 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 Ml may include 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 long rib N 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 should also be noted that in the illustrated example, the front part of the light guide GL is intended to be installed substantially horizontally (XY plane), and the first mask Ml is installed above the first face FG1, which is therefore a top face of the light guide GL. The first mask Ml thus comprises a first internal face Fil installed opposite, and partially against, the first face FGL. However, in a first variant, the first internal face Fil of the first mask Ml could be installed opposite, and partially against, the second face FG2 of the light guide GL, which is opposite its first face FG1 and thus constitutes a bottom 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 right of the light guide GL.

[0060] Also, for example, and as illustrated, without limitation and at least partially, in Figures 2 to 5, 8, and 9, each rib N can define, by its first shape, at least a portion of the second coupling and / or positioning elements ECP2 that is dedicated to positioning. In this case, the reflector RP can include a front portion PVR that defines, by its third shape, at least a portion of the fifth coupling and / or positioning elements ECP5 that is dedicated to positioning. This third shape is substantially homologous to the first shape so that the front portion PVR of the reflector RP is positioned substantially against the rib N. This ensures 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, without limitation and at least partially, in Figures 1, 6, and 8 to 10, the assembly EA may include a second mask M2, as mentioned above. This second mask M2 comprises a second inner 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 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). However, as indicated above, the assembly EA may not include a second mask M2.

[0062] Also, for example, and as illustrated without limitation and at least partially in Figures 2 to 6 and 9, the GL light guide may include The seventh coupling and / or positioning elements ECP7, and the second mask M2 may include eighth coupling and / or positioning elements ECP8. These latter (ECP8) are designed to cooperate 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, but not limited to, and at least partially shown in Figures 2 to 5, 7 and 8, the seventh coupling and / or positioning elements ECP7 comprise 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 through the two through holes ECP7 and the slot ECP7, respectively. This ensures precise coupling and positioning along 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 PTG technical wall of the GL light guide can be provided with the seventh coupling and / or positioning elements ECP7.

[0065] Also, for example, and as illustrated, without limitation and at least partially, in Figures 6 and 8 to 10, the second mask M2 may include ninth coupling and / or positioning elements ECP9, and the reflector RP may include a second wall PR2 equipped with tenth coupling and / or positioning elements ECP10. These latter (ECP10) are adapted to cooperate 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 allows the second mask M2 and the reflector RP to be fixedly and simultaneously attached to the light guide GL.

[0066] In the example illustrated, not limited to 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 RP reflector at least two clipping tabs which clip into the corresponding ECP9 clipping holes.

[0067] It should be noted that in the illustrated example, the front part of the electronic board CE also includes at least two through holes TT through which the clipping tabs ECP10 pass, allowing them to clip into the corresponding clipping holes ECP9. This advantageously allows the reflector RP and the second mask M2 to be fixed to the electronic board CE, while also immobilizing the electronic board CE relative to the light guide GL, and thus strengthening the quality of the assembled unit EA.

[0068] For example, and as illustrated, but not limited to, in [Fig. 8], the reflector RP and the electronic board CE can be coupled together to define a pre-assembled sub-assembly constituting a sub-part of the assembled unit EA. It will be understood that this pre-assembled sub-assembly is then assembled at least to the light guide GL, and possibly to the first mask M1 and / or the possible second mask M2, which has / have been previously assembled to the light guide GL. This simplifies the complete assembly of the assembled unit EA.

[0069] It should be noted that in the example illustrated, but not limited to, in Figures 1, 8 and 10, the pre-assembled sub-assembly also includes a thermal shield ET fixedly attached, for example by clipping and / or screwing, to the face (here the lower face) of the electronic board CE that is opposite the reflector RP. However, such a thermal shield ET could be omitted.

[0070] It should also be noted that the first M1 and second M2 masks, the RP reflector, and the GL light guide can be made by injection molding from rigid and preferably resistant plastic material(s), such as polycarbonate (or PC). Similarly, the housing and any protective lens can be made by injection molding from a rigid and resistant plastic material, such as polycarbonate (or PC).

Claims

1. Demands Optical block (OB) suitable for equipping a vehicle and comprising at least a first mask (M1), a reflector (RP), a flat-type light guide (GL), and an electronic board (EB) equipped with components suitable for participating in a controlled generation of photons to power said light guide (GL) to participate in at least one photometric function, characterized in that said first mask (M1), reflector (RP) and electronic board (EB) are positioned relative to, and coupled to, said light guide (GL) which serves as their reference part and participates with them (M1, RP, EB) in an assembled unit (AU), The optical block comprising at least first (ECP1), second (ECP2) and third (ECP3) coupling and / or positioning elements,(ii) said first mask (M1) comprises fourth coupling and / or positioning elements (ECP4) adapted to cooperate 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) adapted to cooperate 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 board (CE) comprises sixth coupling and / or positioning elements (ECP6) adapted to cooperate with said third coupling and / or positioning elements (ECP3) to position and / or immobilize it relative to said light guide (GL). in which 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 a second part of said first coupling and / or positioning elements (ECP1) is defined, and ii) said first mask (M1) 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). and in which said rib (N) defines by said first shape at least a part of said second coupling and / or positioning elements (ECP2) dedicated to positioning, said reflector (RP) comprising 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).

2. Optical block according to claim 1, characterized in that said first mask (M1) comprises a first inner face (F1) oriented towards a first face (FG1) of said light guide (GL), and in that it comprises a second mask (M2) comprising a second inner face (F12) oriented towards a second face (FG2) of said light guide (GL), opposite said first face (FG1), and positioned relative to, and coupled to, said light guide (GL) in order to participate in said assembled unit (EA).

3. Optical block according to claim 2, 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) adapted to cooperate with said seventh coupling and / or positioning elements (ECP7) to position and / or immobilize it with respect to said light guide (GL).

4. Optical block according to claim 3, characterized in that said light guide (GL) comprises a technical wall (PTG) provided with said seventh coupling and / or positioning elements (ECP7).

5. Optical block according to claim 3 or 4, 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) adapted to cooperate with said ninth coupling and / or positioning elements (ECP9) to position and / or immobilize it with respect to said second mask (M2).

6. 14 Optical block according to any one of claims 1 to 5, characterized in that said reflector (RP) and electronic board (CE) are coupled together in order to define a pre-assembled sub-assembly constituting a sub-part of said assembled assembly (EA).

7. Vehicle, characterized in that it comprises at least one optical unit (OU) according to any one of claims 1 to 6.