FR3138498A1 - Lighting and light signaling module - Google Patents

Abstract

Lighting and light signaling module The present invention relates to a light lighting and signaling module (1) comprising at least one optical unit (14), the lighting and signaling module (1) further comprising: a first light assembly (2) comprising a first light source (21) and a first reflector (22), the first reflector (22) being configured to reflect the light rays (6, 7) towards the optical unit (14), a second light assembly (3) comprising a second light source (31) and a second reflector (32), the second reflector (32) being configured to reflect the light rays (6, 7) in a longitudinal direction (L) towards the block optical (14), characterized in that the second reflector (32) is positioned with an offset relative to the first reflector (22) in a first direction (8) parallel to the longitudinal direction (L) and in a second direction (9 ) perpendicular to the longitudinal direction (L). (figure 3)

Description

Lighting and light signaling module

The present invention relates to the field of lighting and/or light signaling for motor vehicles. The invention relates more particularly to a lighting and light signaling module providing such lighting and/or signaling functions.

The field of lighting and/or light signaling for motor vehicles is subject to regulations which require that each motor vehicle be capable of carrying out lighting and signaling functions respecting specific safety standards. More particularly, the motor vehicle is equipped with one or more light modules dedicated to carrying out each of these functions with, within these modules, at least one light source which is powered to emit light rays which exit the light module at through a lens or a screen which are respectively configured to form or allow a light beam for lighting or regulatory signaling to pass.

For reasons of space in particular, it is desired to equip a motor vehicle with a single, multifunction light module, capable of providing at least two different light functions. With a view to constant improvement applied to such light modules, one of the improvement objectives is to produce a light module capable of ensuring both a lighting function and a signaling function, while limiting mechanical congestion. However, in a reduced size, there is a risk of optical interference in the light module between light rays providing the lighting function and light rays providing the signaling function. Indeed, it is possible that the light rays providing the lighting function interfere with the light rays providing the signaling function and vice versa.

The present invention makes it possible to circumvent the constraints mentioned above, by proposing a lighting and light signaling module for a motor vehicle comprising at least one optical unit, the lighting and signaling module further comprising:
- a first light assembly comprising at least a first light source and a first reflector, the first reflector being configured to reflect the light rays emitted by the first light source towards the optical unit, the first light assembly being configured to generate at least one function lighting,
- a second light assembly comprising at least a second light source and a second reflector, the second reflector being configured to reflect the light rays emitted by the second light source and direct them mainly in a longitudinal direction towards the optical unit, the second assembly light being configured to generate at least one signaling function,
characterized in that the second reflector is positioned with an offset relative to the first reflector in a first direction parallel to the longitudinal direction and in a second direction perpendicular to the longitudinal direction.

The first light assembly and the second light assembly together allow, for a lighting and light signaling module, the realization of at least one lighting function and at least one signaling function. For example, the first light assembly can generate a high beam function and/or a low beam function, and the second light assembly can generate a direction change indicator function, and/or a low beam function. position and/or function of daytime running lights. Light sources can be configured to emit light rays whose intensity and color vary depending on the lighting and/or signaling functions to be performed.

Each of the reflectors is arranged on the path of the light rays emitted by the light source(s) specific to the light assembly to which this reflector belongs. The reflectors have a reflective surface whose position relative to the light sources, orientation and shape are such that the light rays are reflected in the longitudinal direction, that is to say in the direction of the optical unit.

The optical unit is arranged as a whole facing the reflectors, at the level of a trajectory of the light rays of the first light assembly and the second light assembly. It is by passing through the optical unit that the light rays propagate out of the lighting and signaling module.

The two reflectors are positioned relative to each other so that the light rays emitted by the light source associated with them within the corresponding light assembly do not interfere with the other light assembly. The light rays of each light assembly, intended to perform different light functions, must not in fact cross, and the light rays must not be stopped by an opaque element which would absorb the light rays on the main path of the rays in the direction of the optical unit.

Shifting the reflectors relative to each other and in two different directions makes it possible to avoid the constraints mentioned above. Such an arrangement makes it possible to implement a similar trajectory of the light rays of each light assembly, but by ensuring that a trajectory of the light rays of one of the light assemblies bypasses a trajectory of the light rays of the other light assembly . As a result, the second reflector is offset relative to the first reflector, both longitudinally, that is to say parallel to the longitudinal direction, and vertically, that is to say perpendicular to the longitudinal direction.

According to one characteristic of the invention, the first light assembly comprises a lens configured to project the light rays emitted by the first light source and reflected by the first reflector, the second light assembly comprising a screen configured to transmit the light rays emitted by the second light source and reflected by the second reflector, the lens and the screen forming the optical unit. The first reflector is oriented so as to reflect the light rays of the first light assembly towards the lens, and the second reflector is oriented so as to reflect the light rays of the second light assembly towards the screen.

The function of the lens is to converge the light rays of the first light assembly, that is to say the light rays emitted by the first light source and reflected by the first reflector, after these have passed through one face of the lens oriented towards the first reflector. The screen for its part has a transmission function, without projection capacity, of the light rays of the second light assembly, that is to say the light rays emitted by the second source and reflected by the second reflector.

So that the lens and the screen are positioned on the trajectory of the light rays of the light assembly which is specific to them, the lens and the screen are also offset relative to each other, at least according to the second direction.

The optical unit is formed so that the lens is arranged facing the first reflector and the screen is arranged facing the second reflector. The lens and the screen can therefore be formed in one piece, in a single piece made of a transparent or translucent material. According to another example, the lens can be made of a transparent material delimited by an opaque perimeter.

According to one characteristic of the invention, the optical unit comprises a slot separating the lens from the screen. Such a slot, arranged perpendicular to the first direction parallel to the longitudinal direction and perpendicular to the second direction perpendicular to the longitudinal direction, makes it possible to avoid the propagation of light rays within the transparent or translucent material forming the optical unit. This slot can, if necessary, allow the insertion of an opaque wall blocking even more effectively the propagation of light rays from one element to another of the optical unit.

According to one characteristic of the invention, the first reflector extends through the slot. In this case, it is the first reflector which forms the previously mentioned opaque element and which separates the lens from the screen at the level of the optical unit. The first reflector thus prevents the propagation of light rays from the first light source towards the screen and/or the propagation of light rays from the second light source towards the lens.

Alternatively, the slot can be filled by an injection of opaque material in order to prevent the transmission of light rays between the lens and the screen. In such a configuration, the first reflector can also extend until it abuts the optical unit.

According to one characteristic of the invention, the offset of the second reflector in the first direction is such that the first reflector is positioned between the second reflector and the optical unit, and in particular between the second reflector and the lens. In other words, the second reflector is positioned set back from the first reflector in relation to the lens and/or the screen. It is therefore the light rays associated with the second light assembly, that is to say those intended to be reflected by the second reflector, which bypass the first light assembly and in particular the first reflector of this first light assembly. This configuration is notable in a context where the second light assembly is intended to generate a signaling function, with optical elements of simple shape which reflect the light rays in a mirror and transmit them, and where the first light assembly is intended to generate a lighting function, with optical elements which have complex shapes to conform the light rays into a converging beam of lighting. These are the optical elements of simple shape which are offset so that the path of the light rays bypasses the complex optical elements of the other light assembly.

According to one characteristic of the invention, the lighting and signaling module comprises at least one mask provided with fixing means intended to hold the optical unit, and preferably the screen and the lens respectively, facing the reflectors. The mask has several functions. For example, it makes it possible to protect sensitive elements such as light sources or reflectors. The mask also makes it possible to absorb potential light rays likely to deviate from their trajectory and constitute parasitic light rays.

The means for fixing the screen and the lens, where appropriate the optical unit forming the screen and the lens in one piece, are made around the perimeter of an opening formed at one longitudinal end of the mask to allow passage to light rays and allow reception of the optical unit across the light rays. The fixing means are capable of gripping the optical unit and holding it facing the opening so that each component of the optical unit, namely the lens and the screen, is facing the reflector of its corresponding light assembly.

According to one characteristic of the invention, the lighting and signaling module comprises a printed circuit board carrying all the light sources. This single printed circuit board therefore carries the first light source and the second light source. The printed circuit board is configured to allow the operation of the light sources to be controlled, for example following a manual command activated by a user of the vehicle, and to turn on or off one or the other of the light sources by result. Using only one printed circuit board for all the light sources reduces the bulk of the lighting and signaling module. Furthermore, the use of a single printed circuit board makes it possible to limit connections and assembly compared to the use of a plurality of printed circuit boards and allows a reduction in costs due to the limitation of the number of parts and assembly operation time.

According to one characteristic of the invention, the lighting and signaling module comprises a low wall arranged across the printed circuit board to separate the first light source and the second light source. The low wall makes it possible to avoid optical interference between the first light source and the second light source. The latter in fact emit in all directions and the light rays emitted by each of them can therefore potentially intersect at the level of the emission zone. The low wall is placed between the two light sources and ensures that the light rays emitted by one of the light sources are blocked and directed towards the other light source. In other words, the low wall helps to delimit the first light set and the second light set and ensures that no light ray can pass from one light set to the other. The wall can, for example, extend from the printed circuit board.

According to one characteristic of the invention, the printed circuit board comprises a groove disposed between the first light source and the second light source, the first reflector comprising a protrusion housed in the groove and forming the low wall. This is an embodiment of the wall mentioned above, it being understood that this wall could alternatively be directly formed at the level of the printed circuit board. The groove is arranged between the first light source and the second light source, but does not create a separation strictly speaking, making it possible to block the light rays likely to pass from one light assembly to another. The separation is done thanks to the first reflector which extends to the level of the groove and whose protrusion is housed within said groove. It is thus the first reflector which separates the first light source and the second light source and which forms the wall preventing optical interference between the light sources.

According to one characteristic of the invention, the printed circuit board has an inclination of between 5° and 15° relative to a plane perpendicular to the second direction.

According to one characteristic of the invention, the first reflector and the second reflector are formed in one piece. In other words, a single part housed in a mask delimiting the lighting and signaling module forms both the first reflector and the second reflector. Such a part includes means for connecting the two reflectors together which extend on the sides so as not to hinder the emission of the light rays within each of the light assemblies. The fact of having a single piece forming the two reflectors makes it possible to simplify the positioning of the reflectors within the lighting or signaling module and this is particularly important here where the reflectors must be offset longitudinally and vertically one by one. relative to the other to ensure that the light rays of one light assembly bypass the optical elements of the other light assembly. Furthermore, the quantity of components is reduced and assembly is facilitated, resulting in an attractive cost reduction.

According to one characteristic of the invention, the lighting and signaling module comprises at least one primary optical device disposed between the second light source and the second reflector. The primary optical device makes it possible to improve the propagation of light rays towards the second reflector. The primary optical device can for example be a collimator placed opposite each second light source so that the light rays emitted by this second light source are almost entirely directed towards the second reflector. The collimator makes it possible to process all of the light rays which pass through it so that they emerge parallel to each other, advantageously parallel to the second direction.

According to a characteristic of the invention, the first reflector comprises several cavities arranged respectively opposite one of the first light sources and of which an internal face is configured to shape the light rays and direct them towards the lens within the first light assembly to generate the lighting beam, the external face of each cavity, opposite said internal face, participating in delimiting a space for circulation of the light rays of the second light assembly. The first reflector has complex shapes, and for example cavities of at least partially elliptical shape, which make it possible to orient and focus the light rays coming from different first light sources in the direction of the lens of the first light assembly in order to ensure a lighting function specific to the first light assembly. Each pair formed by a first light source and a cavity participates in forming a beam of lighting projected via the lens. For example, certain first light sources can participate in generating a low beam function and other first light sources can light up in addition to the low beams in order to obtain more intense overall lighting so as to ensure a high beam function.

According to one characteristic of the invention, the second reflector comprises a reflective flat wall. Such a flat wall is inclined to direct the light rays emitted by the second light source towards the screen to generate a light signaling beam.

Other characteristics and advantages of the invention will appear further through the description which follows on the one hand, and several examples of embodiment given for informational and non-limiting purposes with reference to the appended schematic drawings on the other hand, in which :

represents a general view of a lighting and signaling module according to the invention,

represents a view of the lighting and signaling module illustrating a plurality of constituent elements of said lighting and signaling module,

is a sectional view of the lighting and signaling module which schematically shows a plurality of light rays emitted within said lighting and signaling module,

is a close-up sectional view illustrating in particular a means ensuring the prevention of optical interference.

There is a general view of a lighting and signaling module 1 according to the invention. This lighting and signaling module 1 can for example be integrated into a motor vehicle, for example in a headlight of the motor vehicle, in order to fulfill at least one lighting function and at least one signaling function during a phase running of said vehicle. As such, the lighting and signaling module 1 can in particular be arranged at the front of the vehicle.

The lighting and signaling module 1 comprises two distinct light assemblies, namely a first light assembly 2 and a second light assembly 3, housed in a mask 17 and respectively configured to generate a lighting or signaling function through a optical block 14 formed by a screen 5 and a lens 4, closing the mask 17. In other words, depending on the need to be met by the lighting and signaling module 1, it can generate light rays which can be projected by the lens 4 and/or which can be transmitted by the screen 5, by activation of the first light assembly, which includes the lens 4 or of the second light assembly, which includes the screen 5.

More particularly, as will be detailed below with reference to Figures 2 to 4, the first light assembly 2 comprises one or more first light sources, a first reflector 22 and the lens 4 and it is activated to generate a function of lighting when necessary, and the second light assembly 3 comprises one or more second light sources, distinct from the first light sources, a second reflector 32, distinct from the first reflector, and the screen 5 and it is activated to generate a function of signaling when necessary.

The lens 4 and the screen 5 are arranged one above the other in a vertical direction which will be defined in more detail below, in particular with respect to a perpendicular longitudinal direction corresponding to a main direction of circulation light rays within at least one light assembly. More particularly, the screen 5 is arranged vertically above the lens 4.

The screen 5 and the lens 4 can be in one piece relative to each other in order to form the optical block 14. This optical block 14 is arranged so that the screen 5 is positioned at the level of a trajectory of the light rays coming from the second light assembly and that the lens 4 is positioned at the level of a trajectory of the light rays coming from the first light assembly.

In the example illustrated, the optical unit 14 comprises a slot 15 separating the two elements forming the optical unit, namely the lens 4 and the screen 5. This slot 15 helps to prevent the passage of light rays from one element to the other of the optical unit 14 to ensure independence of the lighting and signaling functions respectively generated by each of the light assemblies housed in the mask 17 as will be described in detail later.

The mask 17 is configured to at least partially accommodate the light assemblies of the lighting and signaling module 1. This mask 17 has an opening 35 which is covered by the optical unit 14, and the light assemblies are configured to direct the light rays emitted in the direction of this opening 35. In order to maintain the optical unit 14 across the opening 35 of the mask 17, the latter may comprise fixing means 18, for example in the form of fixing clips, arranged on an edge of the end of the mask delimiting the opening 35 and configured to deform when positioning the optical unit 14 against the mask and to retain the optical unit once returned to their original position. These fixing means retain the optical unit and allow the correct positioning of the elements of the optical unit, namely the screen 5 and the lens 4, so that the light rays which pass through them form the appropriate light beam at the output.

The lighting and signaling module 1 may include fixing elements 36 intended to cooperate with fixing members to a headlight housing secured to the vehicle on which the lighting and signaling module 1 must be installed. These fixing members fixing not visible here can consist of adjustable screws, one end of which is housed in the fixing elements 36 and making it possible to configure an orientation of the lighting and signaling module 1, in order to correctly illuminate the road on which the vehicle is traveling.

In order to describe in more detail the structure of the lighting and signaling module 1 according to the invention, the also represents said lighting and signaling module 1 but here without the mask 17, thus making it possible to observe the content of the lighting and signaling module 1 and in particular the presence of the first light assembly 2 and the second light assembly 3 such than previously mentioned.

More particularly, this makes visible a printed circuit board 10, a first reflector 22 and a second reflector 32 which form part of the lighting and signaling module 1.

The printed circuit board 10 carries a plurality of light sources, not visible on the , namely the first light source(s) in a first zone and the second light source(s) in a second zone. The printed circuit board 10 has a first face and a second opposite face, and all of the light sources are fixed on the first face, so that the first light source(s) and the second light source(s) all emit rays illuminated on the same side of the printed circuit board 10.

The first reflector 22 and the second reflector 32 each overhang the printed circuit board 10, being arranged in such a way that faces reflecting light rays are respectively facing each of the light sources, on the side of the first face of the card of printed circuit on which these light sources are fixed.

Each reflector 22, 32 is arranged opposite at least one light source carried by the printed circuit board 10 so that one can differentiate between first light rays emitted by at least one first light source and reflected by the first reflector 22 and second light rays emitted by at least one second light source and reflected by the second reflector 32.

The at least one first light source, the first reflector 22 and the lens 4 form the first light assembly 2 while the at least one second light source, the second reflector 32 and the screen 5 form the second light assembly 3. As previously mentioned, each of the light assemblies 2, 3 is dedicated to one or more lighting and/or signaling functions.

In the example illustrated, the first reflector 22 comprises a plurality of cavities 19, each of these cavities being dedicated to the reflection of light rays emitted by one of the first light sources. Alternatively and not shown, several light sources can be associated with the same cavity 19. The cavities 19 are configured, in particular by presenting an internal face facing the printed circuit board 10 which has a complex shape that is at least partially elliptical. , to reflect the light rays emitted by the first light sources in the direction of the lens 4 at an angle of incidence allowing the formation of an appropriate lighting beam such as it must be implemented by the first light assembly 2 The printed circuit board 10 participates in transmitting the operating instructions of the first light sources by turning them on or off as needed, for example following a command activated by the driver of the vehicle.

For example, the first light assembly 2 can be dedicated, in a non-exhaustive manner, to generating a lighting beam of the low beam and/or high beam type. In this configuration, one or more first light sources can be activated to emit light rays in the direction of first cavities 19 and provide the function of low beam and a plurality of first complementary light sources can be activated to emit light rays in the direction other cavities 19 and generate a complementary part of the low beam beam to thus form the high beam beam when such a beam is necessary.

The second reflector 32 is provided with a flat reflective wall 20 ensuring the reflection of the light rays coming from the second light source as far as the screen 5. The second reflector 32 is oriented so that the light rays are reflected towards the screen 5 in a longitudinal direction L, that is to say in a direction parallel or substantially parallel to the road on which the vehicle is traveling.

The second light assembly 3 as just described, with one or more second light sources and a second reflector 32 with a flat reflection surface and a screen 5, is in particular configured to generate a signaling beam and thus ensure the realization of a position light function and/or direction change indicator and/or a daytime running light function for example. Advantageously, the second light assembly 3 makes it possible to provide a position light function, a direction change indicator function and a daytime running light function. The printed circuit board 10 participates in transmitting the operating instructions for the second light sources by turning them on or off as needed, for example following a command activated by the driver of the vehicle.

The first light assembly 2 and the second light assembly 3 may respectively comprise a plurality of first light sources and a plurality of second light sources, all fixed on the first face of the printed circuit board 10, which may present intensities and/or different colors in order to respectively respond to several lighting and signaling functions.

The second light assembly 3 comprises at least one primary optical device 16 arranged between the second light source and the second reflector 32. On the , the primary optical device 16 is a collimator which overlooks the second light source so that a maximum of light rays coming from the second light source meet the collimator and then be directed towards the screen 5, mainly in the longitudinal direction L.

So that the lighting and signaling module 1 can alone provide at least one lighting function and at least one signaling function, without creating optical or mechanical interference between all the light rays managed by the light assemblies 2, 3, the latter are arranged within the mask 17 so that a positioning offset is formed between the first reflector 22 and the second reflector 32. More precisely, as illustrated in the , the second reflector 32 is offset relative to the first reflector 22 in a first direction 8 parallel to the longitudinal direction L and in a second direction 9 perpendicular to the longitudinal direction L.

This offset makes it possible to avoid optical interference between the light rays coming from the first light source and the light rays coming from the second light source.

As is visible in one of Figures 2 to 4, the second reflector 32 is offset in the first direction 8, that is to say in the longitudinal direction, so that the first reflector 22 is positioned between the second reflector 32 and the lens 4. This longitudinal offset makes it possible to position the two reflectors 22, 32 opposite the light source specific to it and thus to use a single printed circuit board 10 for all the sources luminous. More particularly, the first light source 21 is arranged on the printed circuit board 10 longitudinally further forward than the second light source 31, that is to say closer to the optical unit 14 and this offset makes it possible to arrange the first source light facing the first reflector and the second light source facing the second reflector, and thus arranging the first and second light sources at a distance from each other and thus avoiding interference.

The offset between the two reflectors 22, 32 in the second direction 9 makes it possible to arrange the first reflector 22 facing the lens 4 and the second reflector 32 facing the screen 5, in the context previously mentioned where the screen 5 is arranged above the lens 4 in the vertical direction corresponding to this second direction 9. In this way, the path of the light rays of the second light assembly 3 between the second reflector 32 and the screen is not not hampered by the presence of the first reflector 22. The external face of the cavities 19 forming the first reflector 22, that is to say the face opposite to that intended to reflect the light rays of the first light assembly 2, thus participates in delimiting a circulation zone for the light rays of the second light assembly 3, partitioning the path of these rays.

Thanks to the offset of the second reflector 32 according to the two directions 8, 9 aroused, the second light assembly 3 is configured so that the trajectory of the light rays emitted by the second light source at least partially bypasses the trajectory of the light rays emitted by the first light source. All lighting and signaling functions can then be provided independently by one lighting assembly or by the other lighting assembly, in a minimal space requirement without interaction from one lighting assembly to the other.

The first reflector 22 and the second reflector 32 can be formed in one piece, since this one-piece configuration of the two reflectors makes it possible to maintain the previously mentioned characteristic of longitudinal and vertical offset of the reflectors relative to each other. so that one of the reflectors does not interfere with the path of the light rays reflected by the other of the reflectors and so that each light assembly 2, 3 can generate its own light beam without interference.

There represents a sectional view of the lighting and signaling module 1 according to the invention. The sectional view makes it possible in particular to schematize the first light source 21 and the second light source 31, as well as to schematize an example of trajectory of light rays 6, 7 associated with each of the light assemblies 2,3 to illustrate the fact that the rays light 7 associated with the second light assembly 3 pass opposite the first reflector of the first light assembly 2 without being hindered by this first reflector, due to the offset position of the second reflector relative to the first reflector.

The first light source 21 is thus capable of emitting a plurality of first light rays 6 extending in all directions towards the first face of the printed circuit board 10. A large majority of these first light rays 6 propagates up to 'to the first reflector 22, more particularly to one of the cavities 19 of the first reflector 22. The complex, at least partially elliptical shape of each of the cavities and the position of the first light source 21 relative to the object focus of this shape complex is such that the first light rays 6 are reflected in a manner parallel or substantially parallel to the longitudinal direction L, regardless of the direction of incidence of the first light rays 6 emitted by the first light source 21 as illustrated in there . The first light rays 6 then propagate to the lens 4 of the optical unit 14. The latter is configured and arranged at a distance from the first reflector to project said first light rays 6 onto the road scene by making them converge to form a beam regulatory light, in particular a lighting beam of the high beam or low beam type.

At the level of the second light assembly 3, a plurality of second light rays 7 is emitted by the second light source(s) 31. The second light rays 7 propagate initially within one of the collimators 16 described above and arranged respectively opposite the second light sources. At the output of each collimator 16, and as mentioned previously, the second light rays 7 are directed, substantially parallel to each other, towards the second reflector 32 and more particularly towards the flat reflecting surface 20. The second light rays 7 are thus reflected homogeneously and propagate towards the screen 5 of the optical unit 14 in the longitudinal direction L. Unlike the lens 4, the screen 5 does not project the second light rays 7 but transmits them . The second light rays 7 therefore pass through the screen 5 substantially without deviating from their trajectory and they extend outside the lighting and signaling module 1 without being convergent. Alternatively, the screen 5 can be configured so that the second light rays 7, when passing through the screen 5, are spread out, for example vertically and/or horizontally.

The sectional view shown on the also allows us to observe that the lighting and signaling module 1 is configured so as to limit as much as possible the optical interference between the light assemblies 2, 3. As was described in , the lens 4 and the screen 5 are separated by the slot 15 to prevent light rays passing through one of the elements of the optical unit, namely the lens or the screen, from propagating within the transparent material or translucent of the optical unit towards the other element of this optical unit. Furthermore, an opaque element distinct from the optical unit can be housed in the slot. Here, the first reflector 22 is extended in order to form said opaque element passing through the slot 15. The first reflector 22 thus forms a barrier between the lens 4 and the screen 5 so as to limit the diffusion of parasitic rays passing from a set bright to the other. More particularly, the first reflector 22 prevents the diffusion of first light rays 6 through the screen 5 and/or second light rays 7 through the lens 4. Other means of limiting parasitic light rays will be described later .

There also makes the printed circuit board 10 better visible, in particular the fact that it is inclined relative to a plane perpendicular to the second vertical direction and comprising the first longitudinal direction and according to which the light rays reflected by the reflectors within each light assembly heads towards the optical unit. In the context previously described where the first light source 21 is arranged on the printed circuit board 10 longitudinally further forward than the second light source 31, that is to say closer to the optical unit 14, and where the screen 5 is arranged vertically above the lens 4, the inclination of the printed circuit board 10 is oriented so that the first light source 21 has a vertical position above the vertical position of the second light source 31, with the second light source 31 which tends to be moved away from the second reflector 32. This inclination can be of the order of 15°, and this inclination in particular makes it possible to appropriately direct the second light rays 7 in the direction of the second reflector 32 after these are processed by the collimator 16. This inclination guarantees a distance of these second light rays 7 relative to the first light assembly 2 and therefore further limits potential optical interference that may occur within the lighting module and signaling 1.

There also represents a partial sectional view of the lighting and signaling module 1, showing a detail of the printed circuit board 10. On the , a stray light ray 37 is illustrated. This parasitic light ray 37 is emitted by the second light source 31 and, due to its orientation at the outlet of the second light source, is reflected by an external wall of the collimator 16 instead of passing through it and propagates towards the first light source. 21, thus risking creating optical interference by passing a light ray from one light assembly to another.

In this context, the lighting and signaling module 1 comprises a low wall 11 forming a projection from the printed circuit board 10 and providing a separation between each light assembly and more particularly between the first light source 21 and the second light source 31. The presence of this low wall 11 prevents some of the light rays coming from the first light source 21 from being mixed with the light rays emitted by the second light source 31, and vice versa.

On the , the printed circuit board 10 comprises a groove 12 disposed between the first light source 21 and the second light source 31 and in which the wall 11 previously mentioned is able to be accommodated, to form an obstacle to the propagation of light rays of one light source to another.

In the example illustrated, the low wall 11 is formed by an excrescence 13 of the first reflector 22. Here again, the first reflector 22 does not only have a function of reflecting the light rays emitted by the first light source 21 but also a role of partitioning the first light assembly.

The invention, as it has just been described, achieves the goal it set for itself, and makes it possible to propose a lighting and signaling module ensuring both at least one lighting and at least one signaling function for reduced space requirements.

Of course, the invention is not limited to the examples which have just been described and numerous adjustments can be made to these examples without departing from the scope of the invention, since, in accordance with the invention, these variants comprise a lighting and signaling module according to the invention with reflectors respectively forming part of distinct light assemblies which are offset both longitudinally and vertically.

Claims (10)

Lighting and signaling module (1) for a motor vehicle comprising at least one optical unit (14), the lighting and signaling module (1) further comprising:

• a first light assembly (2) comprising at least a first light source (21) and a first reflector (22), the first reflector (22) being configured to reflect the light rays (6, 7) emitted by the first light source ( 21) towards the optical unit (14), the first light assembly (2) being configured to generate at least one lighting function,
• a second light assembly (3) comprising at least a second light source (31) and a second reflector (32), the second reflector (32) being configured to reflect the light rays (6, 7) emitted by the second light source ( 31) and direct them mainly in a longitudinal direction (L) towards the optical unit (14), the second light assembly (3) being configured to generate at least one signaling function,

characterized in that the second reflector (32) is positioned with an offset relative to the first reflector (22) in a first direction (8) parallel to the longitudinal direction (L) and in a second direction (9) perpendicular to the direction longitudinal (L). Lighting and signaling module (1) according to claim 1, in which the first light assembly (2) comprises a lens (4) configured to project the light rays (6, 7) emitted by the first light source (21) and reflected by the first reflector (22), and in which the second light assembly (3) comprises a screen (5) configured to transmit the light rays (6,7) emitted by the second light source (31) and reflected by the second reflector (32), the lens (4) and the screen (5) forming the optical unit (14). Lighting and signaling module (1) according to claim 1 or 2, in which the offset of the second reflector (32) in the first direction (8) is such that the first reflector (22) is positioned between the second reflector ( 32) and the optical unit (14). Lighting and signaling module (1) according to any one of claims 1 to 3, comprising a mask (17) provided with fixing means (18) intended to hold the optical unit (14) facing the first reflector ( 22) and the second reflector (32). Lighting and signaling module (1) according to any one of the preceding claims, comprising a printed circuit board (10) carrying all of the light sources (21, 31). Lighting and signaling module (1) according to the preceding claim, comprising a low wall (11) arranged across the printed circuit board (10) to separate the first light source (21) and the second light source (31) . Lighting and signaling module (1) according to any one of claims 5 or 6, in which the printed circuit board (10) has an inclination of between 5° and 15° relative to a plane perpendicular to the second direction (9). Lighting and signaling module (1) according to any one of the preceding claims, in which the first reflector (22) and the second reflector (32) are formed in one piece. Lighting and signaling module (1) according to any one of the preceding claims, in which the first reflector (22) comprises several cavities (19) each arranged facing one of the first light sources (21) and one of which internal face is configured to shape the light rays and direct them within the first light assembly (2) to generate the lighting function, the external face of each cavity (19), opposite said internal face, participating in delimiting a space circulation of the light rays of the second light assembly (3). Lighting and signaling module (1) according to any one of the preceding claims, in which the second reflector (32) comprises a reflective flat wall (20).