Illumination module

Abstract

The invention relates to a module generating a light beam contributing to the formation of low beams, comprising a light source and a one-piece optical component (1) having:-an entry dioptric interface (3) for receiving light rays from the light source; -a collimating member (4) for reflecting the light received by the incident refractive interface (3); -a folder (5) comprising a ridge line having two cut-off lines (51, 52) intersecting at an inflection point (53); and-an exit dioptric interface (6), characterized in that the collimating member (4) comprises a first portion for reflecting a first portion of the light towards a first region of the ridge that does not comprise an inflection point (53); and a second portion for reflecting a second portion of the light towards a second region of the ridge including an inflection point (53).

Description

Technical Field

[0001] The invention relates to the field of lighting and / or signaling and to components contributing thereto, in particular optical components. The invention is particularly advantageously applicable to the field of motor vehicles. In particular, the invention relates to a light module and to a light device comprising a plurality of such modules. The aim is to form a low-beam type light beam that can be fitted to the front of a motor vehicle. Background Art

[0002] In the automotive field, devices are known which are able to emit a light beam in order to perform or contribute to the performance of a lighting and / or signaling function.

[0003] These devices must comply with applicable regulations by emitting light in desired locations while limiting brightness in certain areas.

[0004] Thus, lighting modules or headlamps are known which conventionally have a low beam with a range of about 70 meters on the road, which are mainly used at night and whose beam is distributed in such a way as not to dazzle the drivers of oncoming vehicles. Usually, the beam has a cut-off in the upper part, which has a horizontal part and an angled part, the horizontal part preferably being located about 0.57 degrees below the horizontal, so as not to illuminate the area in which the drivers of vehicles coming from the opposite direction are located.

[0005] The precise definition of the angled shape, also called "kink", is already given in the prior art, for example in patent publication FR 3010772 A1. In this document, a diopter is used to produce a portion of the low beam, in particular the cut-off portion of the low beam. The light rays come from the entrance surface, are internally reflected in the diopter and project through the exit diopter interface. However, before this, the beam is shaped by a folder, which is in fact in the form of a groove, the ridge of which has a profile representing the desired cut-off. The light rays that hit the folder below the ridge are reflected, thus avoiding the formation of an upward projection, like a "high beam".

[0006] It will be appreciated that the dioptric component provides a compact and less complex solution for forming a portion of the light beam. However, this portion must be supplemented by at least one further beam portion generated by another module. In particular, once the first module generates the cut-off portion, at least another module must be implemented to generate a wider and relatively flat portion of the final low beam in the horizontal direction. In addition to the fact that this requires many different modules, the appearance of the entire lighting device in the turned-on state is also not uniform. In particular, when moving away from the optical axis, the illumination appearance of the module that generates the bend in the cut-off portion is different from the illumination appearance of the module that generates the flat beam.

[0007] Therefore, an object of the present invention is to provide a light emitting module and a device, which can at least partially overcome the above disadvantages.

[0008] Other objects, features and advantages of the present invention will become apparent by studying the following description and accompanying drawings. It should be understood that other advantages may be combined. Summary of the invention

[0009] To achieve this object, according to one embodiment, a light emitting module for generating a light beam is provided, the light emitting module being configured to facilitate the formation of a low beam, the light emitting module comprising a light source capable of emitting light, and an integrated optical component, the integrated optical component having:

[0010] - an incident dioptric interface intended to receive light rays coming from a light source,

[0011] - a collimating member configured to generate reflections within the optical component on light received by the incident refractive interface,

[0012] - a folder comprising a ridge having two cut-off lines meeting at an inflection point, and

[0013] - an exit refractive interface through which the light beam is projected,

[0014] It is characterized in that the collimating member includes a first part, which is configured to reflect a first part of the light toward a first area of ​​the ridge line that does not include an inflection point; and a second part, which is configured to reflect a second part of the light toward a second area of ​​the ridge line that is separated from the first area and includes an inflection point.

[0015] Thus, the light module is able to produce portions of the complete shape of the low beam, in particular both a portion providing a bent shape and a wider portion extending generally to an area closer to the vehicle.

[0016] Preferably, the entire envelope of the low beam is covered by the beam projected by the module. Each module is therefore functionally independent. Although it could be considered that a given optical component is intended to produce only a single beam shape, what is produced in this case is a module whose optical component comprises several parts, each of which is intended to project a beam shape.

[0017] In particular, the first portion of the collimating member may form a first sub-beam which provides width to the overall beam projected, for example a flat beam or a beam of a certain width type, in the sense that the light preferably propagates mainly in a horizontal direction, which does not exclude that the upper edge of the beam is not completely horizontal as described in detail below. The second portion may enable the formation of a second sub-beam which is focused on a bend of a change in direction, corresponding to the bend area of ​​a low beam. Potentially, other rays originating from the light source may supplement these two sub-beams; in particular, the second sub-beam may be enhanced by light propagating directly from the region of the incident dioptric interface to the inflection point in the optical component.

[0018] In an alternative embodiment, one and / or the other of the first and second parts is made into several segments separated from each other. This makes it possible to benefit from a larger reflecting surface and to spatially diversify the reflecting areas contributing to the same part of the beam. For example, a plurality of different segments are used to contribute to the first sub-beam and / or a plurality of different segments are used to contribute to the second sub-beam.

[0019] Another aspect relates to a lighting device comprising a plurality of lighting modules. Even if it is not excluded that a single lighting module produces the entire low beam, by combining several modules, the total lighting power that must be achieved for the "low beam" function can be easily adjusted. By configuring the individual modules so that their projections are superimposed towards the front of the vehicle, their effects are superimposed to achieve the desired illumination.

[0020] Furthermore, if the individual modules are identical, preferably including in terms of luminous power, the visual appearance produced by the modules in the switched-on state for an observer outside the vehicle will not differ between the modules. This is aesthetically uniform. For example, the modules can be stacked.

[0021] Another aspect also relates to a vehicle which is equipped with at least one module and / or with at least one lighting device. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The objects, purposes, features and advantages of the present invention will become more apparent through the detailed description of an embodiment of the present invention, which is illustrated by the following accompanying drawings, in which:

[0023] [ Figure 1 ][ Figure 1 ]An embodiment of the module is shown in a stereoscopic view.

[0024] [ Figure 2 ][ Figure 2 ] shows an example of modules stacked to form a light-emitting device.

[0025] [ Figure 3a][ Figure 3a ] shows a stereoscopic view of the relevant surfaces in the module.

[0026] [ Figure 3b ][ Figure 3b ] shows the light projection from a light module, which produces a light beam of a shape corresponding to a low beam.

[0027] [ Figure 4a ][ Figure 4a ] shows the elements in the light-emitting module that help form a partial light beam.

[0028] [ Figure 4b ][ Figure 4b ] shows the projection of light from the light-emitting module with the help of the elements presented in the previous figure.

[0029] [ Figure 5a ][ Figure 5a ] shows the elements in the light-emitting module that help form a partial light beam.

[0030] [ Figure 5b ][ Figure 5b ] shows the projection of light from the light-emitting module with the help of the elements presented in the previous figure.

[0031] [ Figure 6a ][ Figure 6a ] shows the elements in the light-emitting module that help form a partial light beam.

[0032] [ Figure 6b ][ Figure 6b ] shows the projection of light from the light-emitting module with the help of the elements presented in the previous figure.

[0033] [ Figure 7a ][ Figure 7a ] shows the elements in the light-emitting module that help form a partial light beam.

[0034] [ Figure 7b ][ Figure 7b ] shows the projection of light from the light-emitting module with the help of the elements presented in the previous figure.

[0035] [ Figure 8 ][ Figure 8 ] shows another shape of certain surfaces of the module, in particular a folder with a curved shape.

[0036] [ Fig. 9 ][ Fig. 9 ] shows a stereoscopic view of relevant surfaces in a module according to a variant of an embodiment.

[0037] The accompanying drawings are provided by way of example and do not limit the invention. The accompanying drawings are schematic conceptual depictions intended to aid in the understanding of the invention and are not necessarily drawn to scale for actual applications. DETAILED DESCRIPTION

[0038] Before commencing a detailed discussion of embodiments of the invention, the following will outline optional features that may be used in combination or alternatively:

[0039] - the first part and / or the second part comprises a plurality of segments spaced apart from one another;

[0040] The plurality of sections of the first portion comprises two lateral sections 42 which are arranged on either side of a central section 41 of the collimating member 4 ;

[0041] - two lateral sections 42 and a central section 41 are arranged on the surface of the collimating member 4 which is located above the optical axis of the optical component 1;

[0042] - the second part comprises a central section 41; the second part is preferably constituted by the central section 41;

[0043] the collimating member 4 comprises a supplementary section 43 configured to reflect a third portion of the light rays towards the entire ridge line;

[0044] - the entrance dioptric interface 3 comprises a central portion 31 configured to transmit light towards the second region of the ridge;

[0045] - In the optical axis direction of the optical component 1, the distance between the folder 5 and the exit dioptric interface 6 is equal to the focal length of the exit dioptric interface 6;

[0046] - the inflection point 53 is located on the optical axis of the optical component 1;

[0047] - at least one of the two cut-off lines 51, 52 is curved;

[0048] - the light source is configured to emit light along the optical axis of the optical component 1, the incident refractive interface 3, the collimating member 4 and the exit refractive interface 6 are aligned along the optical axis;

[0049] -The light source is configured to emit light along an axis transverse to the optical axis of the optical component 1, the incident refractive interface 3 and the collimating member 4 are arranged along the transverse axis, and the optical component 1 has a reflecting surface 7 arranged between the collimating member 4 and the folder 5, which is configured to receive the light reflected by the collimating member 4 and reflect these light rays toward the folder 5 along the optical axis of the optical component 1.

[0050] - The present invention also relates to a light emitting device, which comprises a plurality of modules as described above;

[0051] - preferably, at least some of the plurality of modules are stacked; the stacking is advantageously carried out in a vertical direction, that is to say preferably perpendicular to the optical axis and perpendicular to the horizontal direction;

[0052] Advantageously, the stacked modules have an offset in the direction of the optical axis, preferably forming a rectilinear slope.

[0053] It should be pointed out that in the context of the present invention, the term "bent or bent" means that the luminous projection has an upper cutoff portion, which has a basically flat part and an inclined part, and the two parts form an angle between 15° and 45°.

[0054] With regard to the features set out below, the terms relating to verticality, horizontality or transversality (or even lateral direction) or their equivalents should be understood relative to the position in the vehicle where the module is intended to be installed. The terms "vertical" and "horizontal" are used in this specification to indicate that, with respect to the term "vertical", a direction having an orientation perpendicular to the horizon plane (which corresponds to the height of the system) is indicated, and with respect to the term "horizontal", a direction having an orientation parallel to the horizon plane is indicated. These directions are considered under the operating conditions of the device in the vehicle. The use of these words does not mean that slight variations with respect to the vertical and horizontal directions are excluded from the present invention. For example, an inclination of approximately + or -10° relative to these directions is considered here as a slight variation with respect to the two preferred directions. Relative to the horizontal plane, the inclination is in principle between -5° and +4°, and it is between -6° and +7.5° in the lateral direction. In addition, the adjectives "lower" and "upper" should be considered relative to the vertical direction; in the same context, in the vertical direction, the upper element will be located above the lower element (but not necessarily in contact with it or directly in line with it).

[0055] The light module proposed here is capable of generating a first sub-beam and a second sub-beam corresponding to light projections of different shapes, but the two sub-beams complement each other to generate a projection beam having a beam spatial configuration of a low-beam type. According to one option, the light module is configured to independently perform a low-beam function, and may potentially be combined with other light modules according to the present invention to increase the luminous power, it being understood that the low-beam function still needs to comply with regulations as the luminous power increases.

[0056] According to another option, the light module is configured to produce the light distribution of the low beam function, but at a power level lower than the power level required by the regulations. The light module is then combined with one or more other light modules according to the present invention to achieve the light power level required for the low beam function. Preferably, all modules are identical.

[0057] The first luminous sub-beam generated by the module can be a beam with a width. It is projected as a whole below the low beam cut-off portion and is used to illuminate the area near the front of the vehicle. The near-field beam of the low beam is usually a relatively scattered projection in the lateral direction in front of the vehicle, mainly or completely below the horizon, and usually seeks to achieve good illumination distribution in the entire illumination area.

[0058] The second light-emitting sub-beam may define a bending region. Therefore, the combination of the first light-emitting sub-beam and the second light-emitting sub-beam may define at least one beam of a low-beam type in addition to the luminous power provided.

[0059] A low-beam light beam typically has a first lateral region (usually at the edge of the road), the first lateral region is projected at a slightly higher height than a second lateral region (usually at the center of the road), the two regions are arranged in sequence in the lateral direction, and there is a turn or bend between them.

[0060] Such a module comprises a light source, preferably a single light source; this may be a light emitting diode, the mean emission axis of which is arranged on the optical axis of the optical part of the module. By way of example, the power of the light source may be 300 lm.

[0061] The collimating member 4 comprises a first portion configured to reflect a first portion of the light toward a first region of the ridge that does not include the inflection point 53. Advantageously, the first region is divided into two basic regions located on both sides of the inflection point 53, excluding the inflection point itself. Each of these two basic regions can be defined by a first line 51 and a second line 52 of the ridge. In addition, the second portion of the collimating member is configured to reflect a second portion of the light toward a second region of the ridge that is separated from the first region and includes the inflection point 53. This separation means that there is no common point between the first region and the second region. According to one possibility, the second region only includes the actual position of the inflection point. Therefore, the width of the second region extending in the horizontal direction perpendicular to the optical axis may be very small. However, it may also be wider and extend on both sides of the inflection point 53 on the first line 51 and the second line 52.

[0062] [ Figure 1 ] gives an exemplary embodiment of a module. The module mainly comprises an optical component 1, which extends from an incident refractive interface 3 to an exit refractive interface 6 in the direction of the optical axis. Light from a light source is received by the incident refractive interface 3, and the light source is preferably arranged on a bracket 2 of the type of a printed circuit board, for example. Along the path of the light entering the optical component, the collimating member 4 and the folder 5 intercept the light originating from the light source in sequence.

[0063] In this exemplary embodiment, the light source emits light along the optical axis of the optical component 1 , and the incident dioptric interface 3 , the collimating member 4 , and the exit dioptric interface 6 are aligned along the optical axis.

[0064] Preferably, the light originating from the light source is not processed in any other way than by the optical component 1; therefore, advantageously, the light beam is entirely generated by this single element. The optical component 1 is one-piece and preferably made of a single material. This can be polymethyl methacrylate (PMMA) or polycarbonate. Its shape can be generated, for example, by a molding method.

[0065] [ Figure 2 ] reflects the possibility of combining multiple light-emitting modules 1. Thus, in the vertical direction, in this example, the modules are arranged one after the other, their optical axes being parallel and advantageously coplanar. Furthermore, this figure presents an additional option in which the modules 1 are offset in the direction of the optical axis so as to arrange them along a slope. Potentially, the light sources of the various modules can be carried by the same support 2. [ Figure 2 ] reflects the slope defined by the stacking of the modules 1. This slope is formed at an angle greater than 5° and / or less than 15° relative to the vertical. In this example, the higher the module is located, the farther it is from the front end of the vehicle.

[0066] [ Figure 3a ] is a schematic depiction of the relevant surfaces for light processing within the optical component 1. It should be noted again that this component is a one-piece structure, so [ Figure 3a ] The schematic distinction of surfaces shown in ] should be understood as a partial depiction of certain elements, in particular certain surfaces of the housing of component 1.

[0067] Therein one can find an entrance refractive interface 3, preferably centred on the optical axis of the module, for the entry of light rays originating from a source located upstream (not shown in the figure). The collimating member 4 is able to reflect part of the light rays in the direction of the exit refractive interface 6. Advantageously, said reflection is of the total internal reflection type; therefore, the surfaces of the collimating member 4 have angles configured to achieve such internal reflection, so that the placement of reflective surfaces on the collimating member 4 is preferably avoided.

[0068] [ Figure 3a ] also schematically shows a folder 5, which is provided with a first line 51 and a second line 52 at the top, and the lines 51 and 52 meet at an inflection point 53. The inflection point 53 is preferably located on the optical axis. It can be understood that the folder 5 shapes the light to produce a cutoff portion, and the line of the cutoff portion is defined by the first line 51 and the second line 52. As can be seen above, in order to produce the bent shape characteristic of the low beam, there is an angle between the first line and the second line at the inflection point 53.

[0069] [ Figure 3b] provides an example of an iso-intensity curve representing the projection produced by the proposed lighting module. The flat nature of the beam at the cut-off line is clearly distinguished, with a concentration of intensity near the optical axis. A cut-off effect can also be noticed approximately at this level, with a portion of the beam projecting lower on the left than on the right, which is a typical feature of the projection of a right-hand drive vehicle.

[0070] The different parts of the module are described below, each of which is capable of producing [ Figure 3b ] different parts of the full beam presented in .

[0071] therefore,[ Figure 4a ] shows a device that helps provide at least a partial bending region of the light beam. The central portion 31 of the incident dioptric interface 3 is generally a circular area centered on the optical axis, allowing light from the light source to enter and return the light in a focused manner to the inflection point 53 of the folder 5. Therefore, the light is concentrated around the inflection point and the bending region can be accurately defined. [ Figure 4b ] reflects the depiction of the portion of the light beam projected through the exit refractive interface 6.

[0072] The collimating member 4 itself can also provide a portion of light, which is used to define the second sub-beam, that is, the beam defines the bent portion of the low beam. Figure 5a ] presents a surface relevant for this purpose: the second portion of the incident refractive interface 3 (usually the peripheral portion 32 arranged around the above-mentioned central portion 31) receives some light from the light source. Therefore, some of the light entering the optical component 1 will propagate all the way to the central section 41 of the collimating member 4, where they are reflected towards the inflection point 53 in the direction of the folder 5. As mentioned above with reference to [ Figure 4a ] As can be seen, this enables shaping of the beam portion to obtain [ Figure 5b ] results. It is understandable that, referring to [ Figure 5a ]The presented installation and reference[ Figure 4a ]The device described allows their effects to be superimposed in order to achieve the desired level of luminous intensity for that portion of the final light beam.

[0073] Preferably, the segment 41 is arranged in the upper half plane of the optical component 1, which means that in the normal use position of the module, a part of the optical component located above the optical axis is on the opposite side of the folder 5. Moreover, preferably, the segment 41 intersects with a vertical plane passing through the optical axis. Preferably, the segment 41 is symmetrical with respect to the plane. For example, the segment 41 can extend around the incident refractive interface 3 in an angular segment greater than 10° and / or less than 30°. The shape of the surface of the collimating member 4 defining the segment 41 is selected so as to produce a collimating effect in the direction of the inflection point 53. According to one possibility, the profile of the segment 41 along the vertical plane passing through the optical axis can be elliptical, with a focal line around the inflection point 53 or a parabolic focus in the region of the inflection point 53.

[0074] The light projected by the light module is supplemented by a further, flatter sub-beam, which generally enables the creation of an extended shape of the low beam in terms of width.

[0075] to this end,[ Figure 6a ] shows that the collimating member 4 may include two segments 42 arranged around the central segment 41 described above. These segments 42 receive light from the peripheral portion 32 of the incident dioptric interface 3 and are configured to reflect the light towards the lines 51, 52 of the folder 5. As described above, these segments may be given an elliptical shape so as to produce reflections towards the focal lines located on the lines 51, 52. Preferably, the segments 42 are symmetrical around a vertical plane passing through the optical axis. Preferably, they are adjacent to the central segment 41. The first lateral segment 42 guides the light towards the first line 51, while the second lateral segment 42 guides the light towards the second line 52; given the configuration in which these segments are positioned around the central segment 41, this reflection is performed without affecting the central area of ​​the cut-off line around the inflection point 53.

[0076] [ Figure 6b ] provides an example of the portion of light projected via the corresponding exit dioptric interface 6. It is noted that there is complementarity between the light emitted by this portion of the collimating member 4 and the light emitted by the previous portion of the member 4 (usually the central section 41). In [ Figure 6b ] is spread out in the sideways direction. It has an upper edge with a horizontal left portion which, in this horizontal position, may correspond to the upper edge of the entire light beam (low beam). The right portion is not necessarily horizontal and, in this case, is inclined, which means that this portion is at least partially covered by a complementary projection forming a bend, raising the light beam upwards.

[0077] According to one possibility, these two parts are supplemented by light reflected by another section of the collimating member 4. Figure 7a], in which the supplementary segment 43 of the surface of the collimating member 4 is arranged to face the segments 41, 42 relative to the horizontal plane passing through the optical axis. Therefore, the segment 43 is located in the lower half plane of the optical component 1. Preferably, the segment 43 covers an angular segment of 180° around the incident dioptric interface 3. Preferably, the angular segment covered by the central segment 41, the lateral segment 42 and the supplementary segment 43 sweeps over the entire periphery of the incident dioptric interface 3, thus forming a 360° surface around the incident dioptric interface.

[0078] The segment 43 is configured to reflect light originating from the peripheral portion 32 of the incident dioptric interface 3 toward the first line 51 and the second line 52 of the folder 5. As described above, a suitable shape can be adopted for the segment 43 so as to form a focal line for reflection at this position, and in particular a parabolic shape.

[0079] [ Figure 7b ] provides an example of the portion of light that corresponds to the contribution of segment 43. Segment 43 affects the entire width of folder 5, taking into account the angular segment it sweeps, so the portion of the beam produced contributes both to the bending area around inflection point 53 and to the width of the beam, including the width of its flat portion.

[0080] [ Figure 8 ] summarizes an embodiment variant of the functional surface of the optical component 1. More specifically, this variant relates to a folder 5, the principle of the collimating member 4 with different parts remains the same as explained above. According to this arrangement, the folder 5 is curved, and this curvature compensates the field curvature aberration of the exit diopter interface 6. More specifically, starting from the inflection point 53, the curvature of the folder 5 follows the profile of the ridge line, wherein the first line 51 and the second line 52 extend in the form of a curve convexly oriented toward the collimating member 4.

[0081] Generally speaking, it is advantageous to focus the exit dioptric interface 6 on the folder 5. Moreover, the focal length of the exit dioptric interface 6 advantageously corresponds to the distance between the folder 5 and the exit dioptric interface 6 measured at the optical axis.

[0082] [ Fig. 9 ] shows an embodiment variant of a light-emitting module according to the present invention. In this figure, only the optical surface of the module is shown. This exemplary embodiment is similar to Figure 1 and Figure 8 The only differences to the embodiment shown in are that the light source emits light along an axis transverse to the optical axis of the optical component and that the optical component 1 has a reflecting surface 7 arranged between the collimating member 4 and the folder 5 .

[0083] The incident dioptric interface 3 and the collimating member 4 are arranged along this transverse axis. The reflective surface 7 receives the light reflected by the collimating member 4 and reflects the light along the optical axis of the optical component 1 towards the folder 5. It will be noted that in this example, the optical axis of the optical component 1 is defined by the optical axis of the exit dioptric interface 6. It will be noted that, with respect to [ Figure 1 ] For the exemplary embodiment in FIG. 1 , the optical axis of the optical component 1 extends in the longitudinal direction when the module is positioned in its normal installation position in the vehicle.

[0084] It will be understood that in this exemplary embodiment, the collimating member 4 can easily reflect the first portion of the light toward the first region of the ridge line that does not include the inflection point 53, and reflect the second portion of the light toward the second region of the ridge line that is separated from the first region and includes the inflection point 53, by means of the reflective surface 7. Specifically, the collimating member 4 can guide the first portion of the light toward the reflective surface 7, which can in turn guide the first portion of the light toward the first region of the ridge line that does not include the inflection point 53. And the collimating member 4 can guide the second portion of the light toward the reflective surface 7, which can in turn guide the second portion of the light toward the second region of the ridge line that is separated from the first region and includes the inflection point 53.

[0085] As described above, multiple light-emitting modules 1 can be combined, especially as [ Fig. 9 ] to form a light-emitting device. Then, the light source emits light in a direction transverse to the optical axis of the optical component 1, and the orientation of the incident refractive interface 3 and the collimating member 4 in this transverse direction, so that all the light-emitting modules of the light-emitting device can be more easily formed into a single component. In other words, this arrangement of the incident refractive interface 3 and the collimating member 4 of the light-emitting module makes it easier to form an integrated light-emitting device. In particular, this arrangement makes it more conducive to injection molding and demolding of the integrated optical device.

[0086] Without limitation, some examples of satisfactory dimensions are given below:

[0087] -Usable surface area is 1mm 2 A light source in the form of an LED with a focal length of 25 mm;

[0088] - Alternatively, use a surface area of ​​2 mm 2 And the light source is in the form of LED with a focal length of 50mm.

[0089] The focal lengths indicated above may allow for a variation of plus or minus 40% around the indicated values, and preferably plus or minus 20%.

[0090] The present invention is not limited to the embodiments described above.

[0091] List of Reference Numerals

[0092] 1. Optical components

[0093] 2. Bracket

[0094] 3. Incident refractive interface

[0095] 31. Center opening

[0096] 32. Peripheral part

[0097] 4. Collimation components

[0098] 41. Central section

[0099] 42. Lateral section

[0100] 43. Supplementary section

[0101] 5. Folding device

[0102] 51. The First Line

[0103] 52. Second Line

[0104] 53. Inflection Point

Claims

1. A light-emitting module for generating a light beam, the light-emitting module being configured to facilitate the formation of a low beam, the light-emitting module comprising a light source capable of emitting light, and an integrated optical component (1), the integrated optical component having: - an incident refractive interface (3) intended to receive light from the light source; - a collimating member (4), the collimating member being configured to reflect light received by the incident refractive interface (3) within the optical component (1); - a folder (5) comprising a ridge having two cut-off lines (51, 52) meeting at a point of inflection (53); and - an exit refractive interface (6) through which the light beam is projected, It is characterized in that The collimating member (4) includes a first portion, which is configured to reflect a first portion of the light toward a first area of ​​the ridge line that does not include the inflection point (53); and a second portion, which is configured to reflect a second portion of the light toward a second area of ​​the ridge line that includes the inflection point (53) and is separated from the first area.

2. A module according to the preceding claim, wherein: The first portion and / or the second portion includes a plurality of sections that are spaced apart from each other.

3. A module according to the preceding claim, wherein: The plurality of sections of the first portion include two lateral sections (42) disposed on either side of a central section (41) of the collimating member (4).

4. A module according to the preceding claim, wherein: The two lateral sections (42) and the central section (41) are arranged on a surface of the collimating member (4) located above the optical axis of the optical component (1).

5. A module according to any one of the two preceding claims, wherein: The second portion includes the central section (41).

6. A module as claimed in any preceding claim, wherein: The collimating member (4) comprises a supplementary section (43) configured to reflect a third portion of the light rays towards the entire ridge line.

7. A module as claimed in any one of the preceding claims, wherein: The incident dioptric interface (3) comprises a central portion (31) configured to emit light towards a second region of the ridge line.

8. A module as claimed in any preceding claim, wherein: In the optical axis direction of the optical component (1), the distance between the folder (5) and the exit refractive interface (6) is equal to the focal length of the exit refractive interface (6).

9. A module as claimed in any preceding claim, wherein: The inflection point (53) is located on the optical axis of the optical component (1).

10. A module as claimed in any preceding claim, wherein: At least one of the two cut-off lines (51, 52) is curved.

11. A light emitting module as claimed in any one of the preceding claims, wherein: The light source is configured to emit the light along an optical axis of the optical component (1), and the incident dioptric interface (3), the collimating member (4) and the exit dioptric interface (6) are aligned along the optical axis.

12. The light emitting module according to any one of claims 1 to 10, wherein: The light source is configured to emit the light along an axis transverse to the optical axis of the optical component (1), the incident refractive interface (3) and the collimating member (4) are arranged along the transverse axis, and the optical component (1) has a reflecting surface (7), which is arranged between the collimating member (4) and the folder (5) and is configured to receive the light reflected by the collimating member (4) and reflect the light along the optical axis of the optical component (1) toward the folder (5).

13. A lighting device comprising a plurality of modules as claimed in any one of the preceding claims.

14. The device according to the preceding claim, wherein At least some of the plurality of modules are stacked.

15. The device according to the preceding claim, wherein The stacked modules have an offset in the direction of the optical axis, preferably forming a linear slope.

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