Lighting Module

Abstract

The present invention relates to a light emitting module for generating a beam that contributes to the formation of a low beam, comprising a light source and an integrated optical component (1): - an entrance refractive surface (3) for receiving light rays from a light source; a collimation element (4) for producing reflection of the light rays received by the entrance refractive surface (3); - a bend (5) with a ridge having two cut-off lines (51, 52) joined at a bending point (53); - an exit refractive surface (6), and a light-emitting module having an optical component (1) having the following: The collimation member (4) is characterized by having a first portion for reflecting a first portion of the light beam toward a first region of the ridgeline that does not include the bent portion (53), and a second portion for reflecting a second portion of the light beam toward a second region of the ridgeline that includes the bent portion (53).

Description

[Technical Field]

[0001] The present invention relates to the field of lighting and / or signaling and to components, particularly optical components, that contribute to this field. It is particularly advantageously applicable to the field of motor vehicles. In particular, it relates to a light-emitting module and a light-emitting device incorporating several such modules, aimed at forming a low-beam type beam that can be directed in front of a motor vehicle. [Background technology]

[0002] In the automotive sector, devices are known that are capable of emitting a light beam that performs or contributes to the performance of lighting and / or signaling functions.

[0003] These devices must meet applicable regulations by emitting light at a desired location while limiting brightness to a certain range.

[0004] Thus, known lighting modules and headlamps are conventionally used primarily at night as low beams with a range of about 70 meters above the road, the distribution of which allows the light beam to not dazzle drivers of oncoming vehicles. Typically, this beam has an upper cutoff with a horizontal portion and an inclined portion. The horizontal portion is preferably about 0.57 degrees below horizontal so as not to illuminate the area where drivers of vehicles coming from the opposite direction are likely to be located.

[0005] The precise definition of the slope shape (also called "bend") has already been provided in the prior art (for example in FR 3010772 A1). In that document, a refractive element is used to create a portion of the low beam (in particular the low beam cut-off). From the entrance surface, a ray of light undergoes internal reflection within the refractive element and is projected through the exit refractive surface. However, the beam has previously been shaped by a benders (actually in the form of grooves whose ridges have a profile corresponding to the desired cut-off). Rays that hit the benders below the ridges are reflected in a way that avoids the formation of an upward projection (as a "high" beam would do).

[0006] The benefit of this refractive component is clear: it offers a compact, less complex solution for shaping a portion of the beam. However, this component must be supplemented by at least one beam portion produced by another module. In particular, if a first module produces the cutoff portion, at least one other module must be implemented to produce the final low beam portion (which is wider and relatively flat in the horizontal direction). In addition to the large number of different modules required for this, the overall appearance of the lighting device is not uniform when lit. Specifically, as you move away from the optical axis, the lit appearance of modules that produce a bend in the cutoff will differ from that of modules that produce a flat beam. [Prior art documents] [Patent documents]

[0007] [Patent Document 1] French Patent Application Publication No. 3010772 Summary of the Invention [Problem to be solved by the invention]

[0008] The object of the present invention is therefore to propose a light emitting module and a device which makes it possible to at least partially overcome the drawbacks mentioned. [Means for solving the problem]

[0009] Other objects, features, and advantages of the present invention will become apparent upon consideration of the following description and accompanying drawings. It is to be understood that other advantages may also be included.

[0010] To this end, according to one embodiment, a light emitting module for producing a beam adapted to contribute to the formation of a low beam is provided, the light emitting module comprising a light source capable of emitting a light beam and an integrated optical component, an entrance refractive surface intended to receive light rays from a light source; a collimation element configured to cause reflection within the optical component of the light rays received by the input refractive surface; - a bender having a ridge with two cut-off lines joined at a bend; an exit refractive surface through which the beam is projected; and an optical component having the following: The light emitting module is characterized in that the collimation element has a first portion configured to reflect a first portion of the light beam toward a first region of the ridgeline that does not include a bend, and a second portion configured to reflect a second portion of the light beam toward a second region of the ridgeline that is separate from the first region and includes a bend.

[0011] The light emitting module can thus create both some parts of the complete shape of the low beam, in particular the part that provides the curved shape, and a wider part that generally extends to an area closer to the vehicle.

[0012] Preferably, the entire envelope of the low beam is covered by the beam projected by one module, thus providing functional independence for each module. Although it is possible to consider a given optical component as being designed exclusively to produce a single beam shape, what is produced in this case is a module whose optical component comprises several parts, each part being intended for one beam shape to be projected.

[0013] In particular, the first part of the collimation element may form a first sub-beam that contributes to the width of the overall projected beam (e.g., flat) or to a broadened beam. It is preferable that the light is spread mainly horizontally, in the sense that this does not exclude that the upper edge of the beam is not necessarily horizontal (as will be explained in more detail below). The second part may form a second sub-beam that is focused at the turning point of the bend (corresponding to the bending region of the low beam). It is possible that other light rays originating from the light source may supplement these two sub-beams. In particular, the second sub-beam may be reinforced by light that propagates directly from a certain area of ​​the incident refractive surface to the bending point within the optical component.

[0014] In an optional embodiment, one and / or the other of the first and second portions is made into several distinct portions, which makes it possible to benefit from a large reflecting surface and to spatially distribute the reflecting areas that contribute to the same portion of the beam, for example, different portions are used to contribute to a first sub-beam and / or different portions are used to contribute to a second sub-beam.

[0015] Another aspect relates to a lighting device comprising several light-emitting modules. Even if a single light-emitting module does not preclude the creation of the entire low beam, by combining several modules it is possible to easily adjust the overall luminous flux that must be achieved for the "low beam" function. By configuring the various modules so that their projections overlap towards the front of the vehicle, their effects are combined to achieve the desired illumination.

[0016] Furthermore, if the various modules are identical (preferably including in terms of luminous flux), then the visual appearance they create when lit will not vary from module to module to an observer outside the vehicle, i.e., aesthetically uniform. For example, the modules may be stacked one on top of the other.

[0017] Another aspect also relates to a vehicle equipped with at least one module and / or at least one light emitting device.

[0018] The aims, objects, features and advantages of the present invention will become more clearly apparent from the detailed description of one embodiment of the present invention, an embodiment of which is illustrated by the accompanying drawings, in which: [Brief explanation of the drawings]

[0019] [Figure 1] FIG. 1 is a perspective view of an embodiment of a module. [Figure 2] 1A and 1B are diagrams showing examples of stacking modules to form a light emitting device. [Figure 3a] FIG. 2 is a perspective view of relevant surfaces in the module. [Figure 3b] 1 shows a light projection resulting from a light emitting module that produces a beam shaped corresponding to a low beam. [Figure 4a] FIG. 1 shows elements of a light emitting module that contribute to forming part of the beam. [Figure 4b]10A and 10B show the light projection resulting from the light emitting module due to the effects of the elements shown in the previous figures. [Figure 5a] FIG. 1 shows elements of a light emitting module that contribute to forming part of the beam. [Figure 5b] 10A and 10B show the light projection resulting from the light emitting module due to the effects of the elements shown in the previous figures. [Figure 6a] FIG. 1 shows elements of a light emitting module that contribute to forming part of the beam. [Figure 6b] 10A and 10B show the light projection resulting from the light emitting module due to the effects of the elements shown in the previous figures. [Figure 7a] FIG. 1 shows elements of a light emitting module that contribute to forming part of the beam. [Figure 7b] 10A and 10B show the light projection resulting from the light emitting module due to the effects of the elements shown in the previous figures. [Figure 8] 10A and 10B show alternative shapes of certain surfaces in the module, particularly with curved bender shapes. [Figure 9] FIG. 10 is a perspective view of relevant surfaces in a module according to a variant embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0020] Before proceeding to a detailed discussion of embodiments of the present invention, optional features that may be used in combination or alternatively will be outlined below: - the first part and / or the second part comprises a plurality of segments spaced apart from one another; the plurality of divisions of the first part include two side divisions 42 arranged on both sides of a central division 41 of the collimation member 4; - the two lateral divisions 42 and the central division 41 are arranged on a surface of the collimation element 4 located above the optical axis of the optical component 1; the second part comprises a central dividing portion 41; the second part is preferably constituted by this central dividing portion 41; - the collimation element 4 comprises a supplementary dividing portion 43 adapted to reflect a third part of the light beam towards the entire ridge line; - the entrance refractive surface 3 comprises a central portion 31 configured to direct the light rays towards the second region of the ridge; - the distance separating the benders 5 and the exit refractive surface 6 in the direction of the optical axis of the optical component 1 is equal to the focal length of the exit refractive surface 6; - the bending point 53 is located on the optical axis of the optical element 1; - at least one of the two cut-off lines 51, 52 is curved; - the light source is configured to emit light rays along the optical axis of the optical component 1, the entrance refractive surface 3, the collimation element 4 and the exit refractive surface 6 being aligned along the optical axis; - a light source is configured to emit light rays along an axis transverse to the optical axis of the optical component 1, an entrance refractive surface 3 and a collimation element 4 are arranged along the transverse axis, the optical component 1 has a reflective surface 7 arranged between the collimation element 4 and the benders 5, the reflective surface 7 being configured to receive the light rays reflected by the collimation element 4 and to reflect them along the optical axis of the optical component 1 towards the benders 5. The invention also relates to a light emitting device comprising a plurality of modules as described above; - it is preferable that at least some of the modules are overlapped with one another; this overlapping is advantageously performed along a vertical line (i.e. preferably a line perpendicular to the optical axis and to the horizontal line); Advantageously, the superposed modules have an offset in the direction of the optical axis, preferably a linear inclination.

[0021] Within the context of the present invention, the term "curved or curved" means that the light projection has a substantially flat portion and an inclined portion, with an angle between the two portions being between 15° and 45°.

[0022] In the following features, the terms vertical, horizontal, or transverse (or even lateral) and their equivalents should be understood in relation to the intended orientation of the module mounted on the vehicle. The terms "vertical" and "horizontal" are used herein to indicate, for "vertical," a direction perpendicular to the horizontal plane (corresponding to the height of the system), and for "horizontal," a direction parallel to the horizontal plane. These terms should be considered under the conditions of operation of the device on the vehicle. The use of these terms does not imply that slight variations in the vertical and horizontal directions are excluded from the present invention. For example, a tilt of the order of +10° to -10° relative to these directions is considered in this case to be an insignificant variation in the two preferred directions. Relative to the horizontal plane, the tilt is generally between -5° and 4°, and lateral between -6° and 7.5°. Furthermore, the adjectives "below" and "above" should be considered in terms of the vertical dimension: in a similar context, an upper element would be located vertically above (but not necessarily in contact with or aligned with) a lower element.

[0023] The proposed light emitting module makes it possible to generate a first sub-beam and a second sub-beam, which correspond to different shapes of light projection but complement each other to generate a projection beam with the spatial form of a low beam type beam. According to one option, the light emitting module is configured to perform the low beam function by itself, but it may be combined with another light emitting module according to the invention in order to increase the luminous flux. It is understood that the low beam function remains legal despite the increase in luminous flux.

[0024] According to another option, the light emitting module is configured to produce a light distribution for the low beam function, but at a lower luminous flux level than required by regulations. In that case, the light emitting module is combined with one or more other light emitting modules according to the invention, preferably all identical, to achieve the luminous flux level required for the low beam function.

[0025] The first illumination sub-beam produced by the module can be a wide beam that is generally projected below the low beam cutoff and serves to illuminate the near field in front of the vehicle. The low beam near field beam is typically projected relatively laterally in front of the vehicle (mostly or completely below the horizon) to generally provide good light distribution over the entire illumination range.

[0026] The second emitted light sub-beam may define a bending region, such that the combination of the first emitted light sub-beam and the second emitted light sub-beam defines at least one beam of the low beam type (possibly except at a given luminous flux).

[0027] A low beam type beam typically has a first lateral area (usually at the edge of the road) that projects slightly higher than a second lateral area (usually at the center of the road), with these two areas following each other laterally and with a bend or curve between them.

[0028] Such a module comprises a light source, preferably a single light source, which may be a light-emitting diode with its central light-emitting axis aligned with the optical axis of the optical component of the module. By way of example, the luminous flux of the light source may be 300 lm.

[0029] The collimation element 4 has a first section adapted to reflect a first portion of the light beam towards a first ridge section that does not include the bend 53. Advantageously, this first section is divided into two basic sections located on either side of the bend 53 and that do not include the bend 53. Each of these two basic sections may be divided by a first ridge line 51 and a second ridge line 52. The second section of the collimation element is adapted to reflect a second portion of the light beam towards a second ridge section that is distinct from the first section and includes the bend 53. This classification means that there is no common area between the first and second sections. According to one possibility, the second section only includes the actual location of the bend. The width of the second section, extending horizontally perpendicular to the optical axis, can therefore be very small. However, it may also be wider, extending over the first and second lines 51 and 52 on either side of the bend 53.

[0030] 1 shows an exemplary embodiment of the module. The module firstly comprises an optical element 1 extending in the direction of an optical axis from an entrance refractive surface 3 to an exit refractive surface 6. The entrance refractive surface 3 receives light from a light source and is preferably arranged on a support 2 (for example of the printed circuit board type). Along the path of the light entering the optical element, a collimator 4 and a bender 5 successively capture the light rays emanating from the light source.

[0031] In this exemplary embodiment, the light source emits light rays along the optical axis of the optical component 1. The input refractive surface 3, the collimating member 4, and the output refractive surface 6 are aligned along that optical axis.

[0032] The light beam originating from the light source is preferably not processed in any other way than by the optical component 1. The beam is therefore advantageously produced entirely thanks to this single element. The optical component 1 is preferably one-piece and made of a single material. This material may be polymethylmethacrylate (PMMA) or polycarbonate. For example, its shape may result from a moulding process.

[0033] Figure 2 reflects the possibility of combining several light-emitting modules 1. Thus, in the vertical direction, the modules follow one another (in this example, with their optical axes parallel and advantageously coplanar). The figure also shows that the modules 1 are offset in the direction of their optical axes so that they are arranged along an inclination. The light sources of the various modules can potentially be supported by the same support 2. The inclination of the support 2 shown in Figure 2 reflects the inclination established by the stacking of the modules 1. This inclination forms an angle of more than 5° and / or less than 15° with respect to the vertical. In this example, the modules are further away from the front end of the vehicle as they move up in their elevated position.

[0034] Figure 3a is a schematic representation of the relevant surfaces for processing light within optical component 1. Recalling that this component is one piece, it should be understood that the schematic distinction between surfaces shown in Figure 3a is an incomplete representation of certain surfaces of certain elements, in particular the outer casing of component 1.

[0035] Therein is found an entrance refractive surface 3, preferably centered on the optical axis of the module. The refractive surface 3 serves to admit light rays originating from a light source (not shown) arranged upstream. The collimation element 4 allows a reflection of a portion of the light rays towards the exit refractive surface 6. This reflection is advantageously of the total internal reflection type. Each surface of the collimation element 4 thus has an angle configured to allow this internal reflection, thus advantageously avoiding the placement of reflective surfaces on the collimation element 4.

[0036] 3a also shows a schematic representation of a bender 5 having a first line 51 and a second line 52 at its ridgeline. The lines 51, 52 join at a bend 53. The bend 53 is preferably located on the optical axis. It should be appreciated that the bender 5 shapes the light to create a cutoff defined by the first line 51 and the second line 52. As seen above, there is an angle between the first and second lines at the bend 53 to create the bent shape characteristic of the low beam.

[0037] Figure 3b thus provides an example of iso-luminosity curves corresponding to the projection produced by the proposed light-emitting module. The flatness of the beam on the cut-off line is clearly discernible, as is the concentration of intensity near the optical axis. Even at this level, the effect of the cut-off is noticeable, with part of the beam projected lower on the left side than on the right side (which is typical for projections for vehicles driving on the right side).

[0038] In the following, a description will be given of the different parts of the module that make it possible to respectively create the different parts of the full beam shown in Figure 3b.

[0039] 4a thus shows the means that contribute to at least part of the bending zone of the beam. The central part 31 of the input refractive surface 3 (typically a circular area centered on the optical axis) admits light from the light source and returns it in a manner that focuses it at the bending point 53 of the bender 5. The light is thus collected around the bending point, making it possible to precisely define the bending zone. A representation of this beam part projected through the output refractive surface 6 is reflected in FIG. 4b.

[0040] The collimation element 4 itself also makes it possible to provide a portion of the light rays that serves to define the second sub-beam (i.e., the beam that defines the bent portion of the low beam). Figure 5a shows the surfaces relevant for this purpose. A second portion of the entrance refractive surface 3 (typically the peripheral portion 32 arranged around the aforementioned central portion 31) receives some of the light rays from the light source. Some of the light rays that have thus entered the optical component 1 pass up to the central dividing portion 41 of the collimation element 4, where they are reflected towards the bend 53 in the direction of the benders 5. As seen above with reference to Figure 4a, this makes it possible for this beam portion to be shaped to obtain the result of Figure 5b. The measures shown with reference to Figure 5a and those described with reference to Figure 4a make it possible for their effects to be superimposed on each other to achieve the desired luminous intensity level for this portion of the final beam.

[0041] The dividing portion 41 is arranged on the upper half-surface of the optical component 1. This means that it is a part of the optical component 1 that is located above the optical axis (on the side opposite the benders 5) in the normal position of the module when in use. Furthermore, the dividing portion 41 preferably defines a vertical plane passing through the optical axis. The dividing portion 41 is preferably symmetrical with respect to this plane. For example, the dividing portion 41 may extend over an angular sector (central angle) of more than 10° and / or less than 30° around the entrance refractive surface 3. The surface shape of the collimation element 4 that defines this dividing portion 41 is selected so as to cause collimation (parallelization of light rays) in the direction of the bending point 53. According to one possibility, the profile of the dividing portion 41 along the vertical plane passing through the optical axis may be elliptical with a focal line around the bending point 53 or parabolic with a focus at the bending point 53.

[0042] The light projected by the light emitting module is supplemented by another, flatter sub-beam, making it possible to create an extended shape, typically in terms of the width of the low beam.

[0043] For this purpose, FIG. 6 a shows that the collimation element 4 can comprise two divisions 42 arranged around the aforementioned central division 41. These divisions 42 are configured to receive light from the peripheral portion 32 of the incident refractive surface 3 and reflect it towards the lines 51, 52 of the benders 5. As mentioned above, these divisions can be provided with an ellipsoidal profile in order to generate a reflection towards the focal lines located on the lines 51, 52. The divisions 42 are preferably symmetrical with respect to a vertical plane passing through the optical axis. They are preferably connected to the central division 41. The first lateral division 42 directs light towards the first line 51, while the second lateral division 42 directs light towards the second line 52. This reflection is achieved without affecting the central region of the cut-off line around the bending point 53, taking into account the configuration of the divisions arranged around the central division 41.

[0044] Figure 6b gives an example of a portion of light projected through the corresponding exit refractive surface 6. Note the complementary nature of the light emitted by this portion of the collimation element 4 and the light emitted by the previous portion of this element 4 (typically the central dividing portion 41). The emitted light projection visible in Figure 6b is spread out laterally. It has an upper edge with a horizontal left portion that may correspond to the upper edge of the overall beam (low beam) at this height. The right portion is not necessarily horizontal, but in this case is inclined. This means that this portion is at least partly carried by a complementary projection forming a bend portion, lifting the beam upwards.

[0045] According to one possibility, these two portions are supplemented by light reflected by another segment of the collimation element 4. This is reflected in Figure 7a, in which the additional segment 43 on the surface of the collimation element 4 is arranged opposite the segments 41, 42 with respect to a horizontal plane passing through the optical axis. The segment 43 is therefore located in the lower half of the optical component 1. The segment 43 covers an angular sector of 180° around the entrance refractive surface 3. Preferably, the angular sectors covered by the central segment 41, the lateral segments 42 and the additional segment 43 cover the entire circumference of the entrance refractive surface 3, thereby forming a surface of 360° around the entrance refractive surface 3.

[0046] The dividing portion 43 is configured to reflect the light rays originating from the peripheral portion 32 of the incident refractive surface 3 towards the first and second lines 51, 52 of the benders 5. As mentioned above, it is possible to use a suitable shape of the dividing portion 43, in particular a parabolic shape, to form a focal line located at this location for the reflection.

[0047] Figure 7b gives an example of the portion of light corresponding to the contribution of the split portion 43. The split portion 43 influences the entire width of the bender 5, considering the angular sector it covers. Therefore, the resulting beam portion contributes both to the bending area around the bend 53 and to the width of the beam (including its flat portion).

[0048] 8 outlines an embodiment variant of the functional surfaces of the optical component 1. More particularly, this variant concerns the benders 5, the principle of the collimation element 4 remaining the same as described above. According to this configuration, the benders 5 are curved, which compensates for the curvature of the image aberrations of the exit refractive surface 6. In particular, from the bending point 53, the first line 51 and the second line 52 extend in a curved manner with their convex sides facing towards the collimation element 4, while the curvature of the benders 5 follows the profile of the ridges.

[0049] In general, it is advantageous for the focus of the exit refractive surface 6 to be on the benders 5. It is also advantageous for the focal length of the exit refractive surface 6 to correspond to the distance between the benders 5 and the exit refractive surface 6 measured at the optical axis.

[0050] Figure 9 shows an embodiment variant of the light emitting module according to the invention. In this figure, only the optical surfaces of the module are shown. This exemplary embodiment differs from those shown in Figures 1 and 8 mainly in that the light source emits a light beam along an axis transverse to the optical axis of the optical component, and in that the optical component 1 has a reflecting surface 7 arranged between the collimating element 4 and the benders 5.

[0051] The entrance refractive surface 3 and the collimating element 4 are arranged along this transverse axis. The reflecting surface 7 receives the light rays reflected by the collimating element 4 and reflects them along the optical axis of the optical element 1 towards the benders 5. It should be noted that in this example the optical axis of the optical element 1 is defined by the optical axis of the exit refractive surface 6. It should be noted that for the exemplary embodiment of Figure 1, when the module is placed in the vehicle (in its normal installation position), the optical axis of the optical element 1 extends vertically.

[0052] In this exemplary embodiment, the reflective surface 7 facilitates the collimation element 4 to reflect a first portion of the light beam toward a first region of the ridgeline that does not include the bend 53 and to reflect a second portion of the light beam toward a second region of the ridgeline that is distinct from the first region and that includes the bend 53. Specifically, the collimation element 4 can direct a first portion of the light beam toward the reflective surface 7, which can in turn reflect the first portion of the light beam toward the first region of the ridgeline that does not include the bend 53. The collimation element 4 can also direct a second portion of the light beam toward the reflective surface 7, which can in turn reflect the second portion of the light beam toward a second region of the ridgeline that is distinct from the first region and that includes the bend 53.

[0053] As mentioned above, it is possible to combine several light emitting modules 1, particularly the light emitting modules shown in FIG. 9, to form a light emitting device. The light source's emission of light rays transverse to the optical axis of the optical component 1, and the transversely oriented refractive input surfaces 3 and collimation elements 4, facilitate the formation of all light emitting modules in a light emitting device as a single component. In other words, the arrangement of the refractive input surfaces 3 and collimation elements 4 in the light emitting modules facilitates the formation of a single light emitting device. In particular, this arrangement facilitates the injection molding and demolding of the single optical device.

[0054] Examples of satisfactory dimensioning are given below, but without limitation: - Surface area 1mm 2 Use of a light source in the form of an LED with a focal length of 25 mm; - Or, a surface area of ​​2mm 2 The use of a light source in the form of an LED with a focal length of 50 mm.

[0055] The focal lengths indicated above can be allowed to vary by ±40%, preferably ±20%, around the indicated values.

[0056] The present invention is not limited to the embodiments described above. [Explanation of symbols]

[0057] 1 Optical Components 2 Support 3. Entrance Refraction Surface 31 Central Gate 32 Periphery 4 Collimation element 41 Center split part 42 Side split part 43 Supplementary division part 5 bender 51 First Line 52 Second Line 53 Turning Point

Claims

1. A light-emitting module for producing a beam adapted to contribute to the formation of a low beam, comprising a light source capable of emitting a light beam and an integrated optical component (1), an entrance refractive surface (3) intended to receive the light rays from said light source; a collimation element (4) configured to cause reflection within the optical component (1) of the light rays received by said entrance refractive surface (3); a bend (5) with a ridge having two cut-off lines (51, 52) joined at a bending point (53); an exit refractive surface (6) through which said beam is projected; A light-emitting module comprising an optical component (1) having The collimation element (4) comprises a first portion configured to reflect a first portion of the light beam toward a first region of the ridgeline that does not include the bend (53), and a second portion configured to reflect a second portion of the light beam toward a second region of the ridgeline that is separate from the first region and includes the bend (53).

2. 10. The module of claim 9, wherein the first portion and / or the second portion comprises a plurality of segments spaced apart from one another.

3. 10. The module according to claim 9, wherein the plurality of divided portions of the first part include two side divided portions (42) arranged on both sides of a central divided portion (41) of the collimation member (4).

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

5. 10. A module according to any one of the preceding claims, wherein said second part comprises said central dividing part (41).

6. 10. The module according to any one of the preceding claims, wherein the collimation element (4) comprises a supplementary splitting portion (43) adapted to reflect a third part of the light beam towards the entire ridge line.

7. 10. A module according to any one of the preceding claims, wherein the entrance refractive surface (3) comprises a central portion (31) configured to direct light rays towards the second region of the ridge.

8. 10. The module according to claim 9, wherein the distance separating the benders (5) and the exit refractive surface (6) in the direction of the optical axis of the optical component (1) is equal to the focal length of the exit refractive surface (6).

9. 10. The module according to any one of the preceding claims, wherein the bending point (53) is located on the optical axis of the optical component (1).

10. 10. A module according to any one of the preceding claims, wherein at least one of the two cut-off lines (51, 52) is curved.

11. 10. The light emitting module according to claim 9, wherein the light source is configured to emit a light beam along an optical axis of the optical component (1), and the entrance refractive surface (3), the collimation element (4) and the exit refractive surface (6) are aligned along the optical axis.

12. 11. The light emitting module according to claim 1, wherein the light source is configured to emit light rays along an axis transverse to the optical axis of the optical component (1), the incident refractive surface (3) and the collimation element (4) are arranged along the transverse axis, and the optical component (1) has a reflective surface (7) arranged between the collimation element (4) and the benders (5), the reflective surface (7) being configured to receive light rays reflected by the collimation element (4) and to reflect the light rays along the optical axis of the optical component (1) towards the benders (5).

13. A light emitting device comprising a plurality of modules according to any one of the preceding claims.

14. 10. The apparatus according to claim 9, wherein at least some of the modules are stacked on top of one another.

15. 10. Device according to the previous claim, wherein the stacked modules have an offset in the direction of the optical axis, preferably a linear inclination.

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