Optical components capable of forming a cut-off beam

Abstract

The present invention relates to an optical component (1) for forming a light beam with a cut-off line. The optical component (1) comprises: a first optical component (2) made of transparent material, comprising: a light guide, each light guide comprising an input diopter and a basic outlet; a common outlet located downstream of the basic outlet; a first surface extending between the basic outlet and the common outlet, the first surface being delimited downstream by a cut-off edge; a reflective material (5), the reflective material (5) being different from the material of the first optical component (2) and arranged facing the first surface of the first optical component (2), the reflective material (5) extending from the cut-off edge to the basic outlet; according to the present invention, the reflective material (5) and the first optical component (2) are arranged to be held to each other without a supplementary component, and so that the reflective material (5) is in direct contact with the cut-off edge.

Description

Technical Field

[0001] The present invention relates to the field of lighting for motor vehicles. In particular, the present invention relates to an optical assembly capable of generating a light beam with a cut-off line, and to a lighting module comprising such an optical assembly. Background Art

[0002] In the field of automotive lighting, a combination of optical components such as a reflector and a lens is known, which together can form a light beam with a cut-off line. The light beam, also called the cut-off beam, can be a low-beam beam. Alternatively, the light beam with a cut-off line can be a light beam complementary to the low-beam beam and configured such that the combination of the complementary light beam and the low-beam beam forms a high-beam beam.

[0003] The aforementioned optical components are arranged to send light to a specific location. For example, such a combination may include an elliptical reflector, a bender, and a converging lens located downstream of the reflector and the bender.

[0004] A disadvantage of this type of optical component is that it requires a high degree of precision in positioning the components relative to each other in order to achieve an accurate and efficient reflection in order to obtain a sharp and precisely positioned cut-off line. Summary of the invention

[0005] It is therefore an object of the present invention to provide an optical system which produces a cut-off beam with a sharp and precisely positioned cut-off line.

[0006] For this purpose, a first subject of the invention is an optical component for forming a light beam with a cut-off line. The optical component comprises:

[0007] - A first optical component made of a transparent material, comprising:

[0008] o light guides, each light guide comprising an input diopter and a base exit;

[0009] o A public outlet located downstream of a primary outlet;

[0010] o a first face extending between the basic outlet and the common outlet, said first face being delimited downstream by a cut-off edge.

[0011] The optical assembly further comprises a reflective material different from the material of the first optical component and arranged on the first face, the reflective material extending from the cut-off edge to the basic outlet. In addition, the reflective material and the first optical component are arranged to be held to each other without a supplementary component, and the reflective material is in direct contact with the cut-off edge.

[0012] Thus, by manufacturing the assembly in an integral, one-piece manner, the positioning of the different reflective or refractive elements relative to one another is dispensed with.

[0013] Furthermore, by adding reflective material to the integral single-piece first optical component to manufacture the reflective device, these positioning problems of the reflective member can be overcome while having good reflection efficiency. Therefore, the image of the light beam generated by the optical assembly according to the present invention is clear and precise.

[0014] The optical assembly according to the present invention may optionally comprise one or more of the features disclosed in the following paragraphs.

[0015] According to an optional feature of the invention, direct contact between the reflective material and the cut-off edge is achieved through the entire cut-off edge.

[0016] According to an optional feature of the invention, the reflective material is formed by a reflective member different from the first optical component or by a reflective coating.

[0017] Optionally, the reflective material has a reflectivity of at least 85%, thereby resulting in less light loss.

[0018] According to one feature of the present invention, when the reflective material is formed by a reflective coating, the reflective coating is made of aluminum or silver, and is particularly formed by deposition, such as aluminum plating. Therefore, the manufacturing process of the reflective material is simple and low-cost.

[0019] According to another feature of the present invention, when the reflective material is formed by a reflective member different from the first optical component and having a first face, the first optical component includes at least one fitting member, the fitting member is arranged so that the first face of the reflective member is in direct contact with the cut-off edge, and the first optical component and the fitting member are formed as only one integral single-piece component. Therefore, by means of the fitting member, the space between the reflective material and the cut-off edge of the first optical component is eliminated. The reflective material fully matches the cut-off edge of the first optical component, which avoids the formation of a black band at the cut-off line on the projected image of the light beam generated by the optical assembly. In addition, the fitting member is integrated with the first optical component, thereby simplifying the assembly of the first optical component and the reflective member, and making it possible to eliminate uneven installation caused by third-party fixing methods.

[0020] According to the previous paragraph, the first face of the reflective member has a downstream central portion. Direct contact between the reflective material and the cut-off edge is achieved via the downstream central portion. Furthermore, the central portion is in direct contact with the first optical component only at the cut-off edge.

[0021] According to the previous paragraph, the downstream central portion is delimited downstream by a downstream edge, the direct contact between the downstream central portion and the first optical component being formed by direct contact of said downstream edge with the entire cut-off edge. Thus, this is an edge-to-edge contact between the reflective member and the first optical component.

[0022] According to the last three paragraphs, the reflective member has a first face on one side and a second face on the other side, the second face being reflective.

[0023] According to an optional feature of the invention, the first optical component has:

[0024] - a longitudinal axis extending in a direction from upstream to downstream of the first optical component,

[0025] - a second axis extending from one side of the cut-off edge to the other side and orthogonal to the longitudinal axis, and

[0026] - a third axis orthogonal to said longitudinal axis and said second axis.

[0027] In addition, the first optical component includes a stopper member that contacts a stopper portion of the reflective member to prevent movement of the reflective member relative to the first optical component along at least one of the three axes. Thus, the reflective member is fixed so as to be immobile relative to the first optical component along at least one of the three axes, which makes it possible to avoid differential positioning between the two parts that could degrade the light beam emitted by the optical assembly.

[0028] According to an optional feature of the invention, at least one stop member is arranged to press the reflective member against the cut-off edge. In other words, the stop member and the abutment member are made in one piece.

[0029] According to another optional feature of the invention, the reflective member comprises at least one stress-elastic portion which abuts against a corresponding supporting portion of the first optical component to generate a force which presses at least one stop of the reflective member against a corresponding stop member of the first optical component. Thus, the support of the corresponding portion by the elastic portion makes it possible to ensure that the reflective member is in good contact with the stop member of the first optical component. For example, the elastic portion is formed by an elastic tongue.

[0030] According to an optional feature of the invention, the reflective member is constituted by one or more plates.

[0031] For example, the reflective member comprises two parts: a reflective plate and a support plate, the support plate being carried by the first optical component and carrying the reflective plate. Direct contact is achieved at the reflective plate.

[0032] According to the last three paragraphs, the plate or the support plate comprises elastic tongues forming the elastic portion.

[0033] For example, the support portion is formed by a protruding block arranged on one side of the first optical component. The elastic portion is formed by an elastic tongue facing the protruding block, the elastic tongue being pressed against the protruding block under stress by bending opposite to the first face of the first optical component.

[0034] Another subject of the invention relates to a lighting module for a motor vehicle, the lighting module being capable of forming a light beam along an optical axis. The lighting module according to the invention comprises:

[0035] - an optical component according to the invention;

[0036] - a plurality of light sources, each light source being arranged facing each input diopter; the light guide being arranged to guide light from the light sources towards the primary outlet by one or more reflections;

[0037] A converging lens, the focal plane of which is arranged in the vicinity of the cut-off edge of the first optical component.

[0038] Furthermore, the optical assembly is arranged such that the first face of the first optical component forms a bender for the light rays coming from the elementary exits and such that the light rays leaving the lens form a beam having a cut-off line which is an image of the cut-off edge.

[0039] Such a lighting module thus produces a cut-off light beam without a black band at the cut-off line of said light beam, which improves the optical performance of the module.

[0040] The lighting module according to the present invention may optionally comprise one or more of the features disclosed in the following paragraphs.

[0041] According to an optional feature of the invention, the lighting module further comprises a light generating assembly. The first optical component is arranged on one side of the reflective member, and the light generating assembly emits light on the other side, so that the reflective member forms a bender for the light from the light generating assembly and thereby forms a second light beam, which has, on the one hand, a cut-off line substantially the same as the first light beam, and, on the other hand, has a shape complementary to the first light beam at the cut-off line.

[0042] For example, the second light beam is a low beam and the first light beam is an upper part of a high beam, so that the two light beams together form a high beam.

[0043] In this case, due to the optical assembly according to the invention, the first beam has no black band. Therefore, the high beam formed by the first and second beams has no transition marked by the hatching between the beams. Therefore, such a high beam has better optical performance.

[0044] In addition, the first optical component of the optical assembly according to the invention comprises a plurality of light guides. Therefore, the first light beam generated by the optical assembly according to the invention is a pixelated light beam with a cut-off line. The projection of the pixelated light beam forms an image composed of lighting units, which are also called "pixels" in English.

[0045] The high beam partially comprising the first beam can realize an adaptive lighting function because at least the first beam is pixelated, which makes it possible to generate a shadow area above the second beam.

[0046] The adaptive function thus makes it possible to provide the driver of the vehicle with better visibility at night while avoiding dazzling the drivers of oncoming vehicles and / or following vehicles detected by the presence sensors.

[0047] In another embodiment, the first light beam generated by the optical assembly according to the present invention may be a low beam. In this case, the second light beam generated by the light generating assembly may be a beam complementary to the low beam.

[0048] Unless otherwise specified, the terms "front", "rear", "lower", "upper", "high", "lower", "lateral", "longitudinal", "horizontal" and their numerical or numerical variations refer to the direction of light emission outside the light emitting module. Unless otherwise specified, the terms "upstream" and "downstream" refer to the direction of light propagation within the light emitting module. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] Other characteristics and advantages of the invention will emerge from a reading of the following detailed description of a non-limiting embodiment, for its understanding reference will be made to the accompanying drawings, in which:

[0050] Figure 1 is a front perspective view of an optical assembly according to a first embodiment of the present invention;

[0051] Figure 2 is with Figure 1 Similar views, which represent the composition Figure 1 a first optical component as part of an optical assembly;

[0052] Figure 3 yes Figure 2 a rear perspective view of a first optical component;

[0053] Figure 4 It is shown Figure 2 and Figure 3 a front elevational view of the front face of the first optical component shown;

[0054] Figure 5 It shows the composition Figure 1 a perspective view of a front side of a reflective member of a portion of an optical assembly;

[0055] Figure 6 is shown along Figure 1 A sectional view of a longitudinal vertical section of an optical component;

[0056] Figure 7 It is shown Figure 1 a perspective view of one side of an optical assembly;

[0057] Figure 8 yes Figure 1 The optical components are similar to Figure 6 a view without reflective material that is part of the optical component;

[0058] Fig. 9 yes Figure 1 A side view of an optical assembly;

[0059] Fig.10 yes Figure 1 a top view of a portion of an optical assembly;

[0060] Fig.11 yes Fig.10 a cutaway view of the portion shown, showing a horizontal cross section of the optical assembly;

[0061] Fig.12 is similar to Fig.10 A view showing Figure 1 another part of the optical assembly;

[0062] Fig.13 yes Figure 6 The detailed view of the enclosed area P shown shows the composition of Figure 1 a rear mating member of a portion of an optical assembly;

[0063] Fig.14 is along with Figure 1 A cross-sectional view of a vertical plane parallel to the longitudinal axis of the optical assembly, the view showing Fig.11 The rear fitting member;

[0064] Fig.15 yes Figure 1 A rear view of the optical assembly;

[0065] Fig.16 Yes Figure 1 A perspective view of a light emitting module including an optical assembly and a converging lens;

[0066] Fig.17 yes Fig.10 A cross-sectional view of a light emitting module showing the path of light within the light emitting module;

[0067] Fig.18is a front perspective view of an optical assembly according to a second embodiment of the present invention;

[0068] Fig.19 yes Fig.18 A perspective view of an optical assembly showing one side of the assembly;

[0069] Fig. 20 yes Fig.18 a sectional view of a front portion of an optical assembly showing a vertical cross section of the assembly;

[0070] Fig.21 yes Fig.18 a cross-sectional view of a straight portion of an optical assembly showing a horizontal cross section of said portion;

[0071] Fig. 22 yes Fig.18 A perspective view of an optical assembly of FIG. 1 , showing in detail a left stop member constituting part of the assembly;

[0072] Fig.23 yes Fig.18 a sectional view of a left portion of an optical assembly showing a horizontal cross section of said portion;

[0073] Fig.24 yes Fig.18 a rear side view of an optical assembly;

[0074] Fig.25 It is shown Fig.18 A cross-sectional view of the rear mating member of the optical assembly.

[0075] Elements which are identical in structure and function and which appear in several different figures are provided with the same numerical or letter reference symbols. DETAILED DESCRIPTION

[0076] Figures 1 to 17 A first embodiment of an optical component 1 according to the invention is shown.

[0077] In this embodiment, the optical assembly is arranged to generate a cut-off beam which is complementary to the low beam and forms an upper portion of the high beam.

[0078] According to the invention, and as in this embodiment, the optical assembly 1 comprises:

[0079] a first optical component 2 made of a translucent or transparent material and formed as an integral, single piece, for example by injection molding; and

[0080] - A reflective material fixed to said first optical component 2 , here by means of abutment members 26 and 29 .

[0081] The optical assembly 1 has a longitudinal axis X extending in a direction from upstream to downstream of the first optical component 2 .

[0082] Other axes are also shown in the figure. One of these axes is a second axis Y, which is transverse, in particular substantially perpendicular, to the longitudinal axis X and extends from the left side to the right side of the figure. A third axis Z is transverse, in particular substantially perpendicular, to the longitudinal axis X and the transverse axis Y. The third axis Z here extends from the bottom to the top of the figure.

[0083] In the embodiment shown, the optical assembly 1 is arranged so that the longitudinal axis X is substantially parallel to the longitudinal axis of the vehicle (not shown) equipped with said optical assembly. In addition, with this arrangement of the optical assembly 1, the second axis Y is substantially perpendicular to the longitudinal axis X and belongs to a horizontal plane containing said axis X. As for the third axis Z, it is substantially perpendicular to the other two axes and extends in the vertical direction.

[0084] Therefore, the Y axis and the Z axis are respectively referred to as the transverse axis Y and the vertical axis Z. The three axes X, Y and Z form an orthogonal coordinate system here.

[0085] refer to Figure 2 and Figure 3 , the first optical component 2 comprises a plurality of light guides 20. Each light guide 20 extends along a longitudinal axis X and comprises an input diopter 21 and an outlet 22. Figure 2 and 3 ) is placed in front of each input diopter 21.

[0086] The light guide 20 is arranged such that light rays coming from the light source propagate inside the light guide by total internal reflection from upstream to downstream along the longitudinal axis X, that is to say in the direction from the input diopter 21 to the outlet 22 .

[0087] The first optical component 2 comprises a common outlet 23 downstream of the outlet 22 of the light guide. The common outlet 23 here forms the front surface of the first optical component 2 through which the light rays leave said first component 2.

[0088] The first optical component 2 further comprises a first face 24 extending between the common outlet 23 and the outlet 22 of the light guide 20 .

[0089] According to the invention and as in the embodiment shown, the first face 24 constitutes part of the upper surface of the first optical component 2. The first face 24 is delimited downstream by a cut-off edge 25. More specifically, in the embodiment shown, the first face 24 and the common outlet 23 meet at the cut-off edge 25.

[0090] Here, if Figure 4As shown, the cutoff edge 25 includes a first horizontal portion 251, a second horizontal portion 252, and a middle portion 253 connecting the first horizontal portion 251 to the second horizontal portion 253. The first horizontal portion 251 is located at a higher position than the second horizontal portion 252. The middle portion 253 is inclined relative to the horizontal direction at a value between 15° and 45°.

[0091] In the embodiment shown, the optical assembly 1 is designed to generate a beam having a cut-off line and complementary to the low beam. In other words, the cut-off beam generated by the optical assembly 1 constitutes the upper part of the high beam.

[0092] Thus, when the cut-off edge 25 is imaged in the light beam, the projection of the first horizontal portion 251 forms a first portion of the cut-off line below the horizontal line. The projection of the second horizontal portion 252 forms a second portion of the cut-off line above the horizontal line. Finally, the projection of the middle portion 253 forms a middle portion of the cut-off line, which is inclined relative to the horizontal line.

[0093] The first optical component 2 has a main axis A which is parallel to the longitudinal axis X and passes through the middle of the middle portion 253 of the cut-off edge 25 .

[0094] Examples of reflective materials are Figure 5 , 6 and 7 are shown.

[0095] In the embodiment shown, the reflective material is formed by a reflective member 5 which is different from the first optical component 2 and has a first face.

[0096] Here, the reflective member 5 is disposed on the first optical component 2 such that a first surface of the reflective member 5 faces the first surface 24 of the first optical component 2 .

[0097] The reflective member 5 is composed of a reflective plate 51 and a support plate 52. In another embodiment, the reflective member can be made as an integral single piece.

[0098] The reflector plate 51 is here a thin metal strip and is delimited downstream by a downstream edge 550. The reflector plate 51 has a first face 511 on one side and a second reflective face 513 on the other side. The first face 511 of the reflector plate 51 forms the first face of the reflective member 5 here.

[0099] As the name implies, the support plate 52 is used to support the plate 51 and keep it fixed on the first optical component 2. For example, the reflection plate 51 is bonded to the support plate 52 by bonding, welding or screwing.

[0100] The support plate 52 is hollowed out so that the first surface 24 is exposed. Thus, when the reflection plate 51 is placed on the support plate 52 , the first surface 511 of the reflection plate 51 faces the first surface 24 of the first optical component 2 .

[0101] According to the invention and as in the embodiment shown, the reflector 51 extends downstream from the cut-off edge 25. In other words, viewed from above, the downstream edge 550 of the reflector 51 is completely aligned with the cut-off edge 25. The front edge 550 is neither forward nor backward relative to the cut-off edge 25. In addition, the profile of the downstream edge 550 is the same as that of the cut-off edge 25, where it is curved in the direction of the input diopter 21.

[0102] Furthermore, as described above, in the vertical direction, the cut-off edge 25 has a step formed by the middle portion 253. Therefore, in order to adapt to the cut-off edge 25, the reflecting plate 51 and the supporting plate 52 are manufactured, for example, by folding, so that the downstream edge 550 has the same profile as the cut-off edge 25, that is, the two horizontal portions 551, 552 are connected to each other by the inclined linear portion 553, as shown in FIG. Figure 5 shown.

[0103] The reflective member 5 including the reflective plate 51 and the support plate 52 also has the axis A as the main axis. In fact, the main axis divides the optical component 1 into two parts, wherein the first part 4 is located on the left side of the main axis A, and the second part 6 is located on the right side of the main axis A. Here, the terms "left" and "right" respectively represent Figure 4 The left side and Figure 4 on the right side.

[0104] In addition, the reflection plate 51 is in direct contact with the entire cut-off edge 25. More specifically, the first face 511 of the reflection plate 51 has a downstream central portion 510. The direct contact of the reflection plate 51 with the entire cut-off edge 25 is achieved through the downstream central portion 510.

[0105] Furthermore, the central portion 510 is in direct contact with the first optical component 2 only on the cut-off edge 25. Specifically, portions of the downstream edge 510 are in contact with corresponding portions of the cut-off edge 25.

[0106] Specifically, the first horizontal portion 551 of the downstream edge 550 directly contacts the first horizontal portion 251 of the cutoff edge 25, the second horizontal portion 552 of the downstream edge 550 directly contacts the second horizontal portion 252 of the cutoff edge 25, and the inclined linear portion 553 directly contacts the middle portion 253 of the cutoff edge.

[0107] exist Figure 6 The direct contact between the downstream edge 550 and the cut-off edge 25 can be seen in FIG.

[0108] This direct contact is achieved by the bonding members 26 and 29 located respectively in front of and behind the first optical component 2. These bonding members are hereinafter referred to as the front bonding member 26 and the rear bonding member 29, and the details about them are described in detail in Figures 6 to 14 Shown in.

[0109] According to the invention and as in the embodiment shown, the attachment members 26 and 29 are manufactured in one piece with the first optical component 2 .

[0110] In this embodiment, the first optical component 2 includes two identical front bonding members 26 , which are arranged on the left and right sides of the first optical component 2 , respectively.

[0111] Here, since the front fitting member 26 has the same shape no matter how it is placed, only the front fitting member located on the right side of the main axis A is described, and the figure number is 26a. This description applies in the same way to the fitting member located on the left side of the main axis A, represented by 26b in the drawings. If there is a difference between the two sides, it will be discussed. The same is true for the elements connected to the front fitting member.

[0112] like Figure 7 As shown, the front contact member 26 a cooperates with the support plate 52 and the reflective plate 51 .

[0113] The support plate 52 comprises two side arms 520 extending from upstream to downstream and arranged symmetrically with respect to the main axis A. Each side arm 520 comprises a free end 521 .

[0114] According to the invention and as in the embodiment shown, the reflector plate 51 may comprise two transverse pieces 512 extending on either side of a central portion 510 comprising a downstream edge 550. In this case, the transverse pieces 512 of the reflector plate 51 overlap with the side arms 520 of the support plate 52, in particular at the free ends 521.

[0115] Here, the side arm 520 of the support plate 52 and the cross piece 512 of the reflection plate 51 are connected to the right front fitting member 26 .

[0116] According to the invention and as in the illustrated embodiment, the front conforming member 26a may include a first portion 261 extending along the vertical axis Z and a second portion 262 extending upstream from one end of the first portion 261 along the longitudinal axis X. Thus, the front conforming member 26 has a hook shape.

[0117] Here, if Figure 7 As shown, the front bonding member 26a contacts the reflective member 5. Specifically, when the first optical component 2 and the reflective member 5 are assembled with each other, the reflective member 5 contacts the second portion 262 to prevent the reflective member 5 from moving along the axis Z.

[0118] More specifically, the lower surface 263 of the second portion 262 is supported on the second reflective surface 513 of the reflective plate 51. Therefore, the contact prevents the reflective member 5 from moving vertically upward.

[0119] Therefore, the front abutment member 26a serves as a stopper that prevents the reflective member 5 from moving along the axis Z. The front abutment member is also referred to as a vertical stopper member 26a.

[0120] According to the invention and as in this embodiment, the end 521 of the reflective member may be located at a distance from the first portion 261 so as to define a space along the longitudinal axis X. The space forms a mounting gap in the longitudinal direction to facilitate mounting the reflective member 5 on the first optical component.

[0121] In addition, the front bonding member 26a ensures direct contact between the cutoff edge 25 and the downstream edge 510 of the reflective plate 51. To this end, with respect to the straight portion 6 of the optical component 1, the front bonding member 26a is configured such that the lower surface 263 of the second portion 262 is parallel to the horizontal plane H1 passing through the second horizontal portion 252 of the cutoff edge 25, and such that the distance d1 between the lower surface 263 and the plane H1 is equal to or slightly less than the total thickness of the reflective member 5. The distance d1 is Fig. 9 Shown in.

[0122] With respect to the left side 4 of the optical assembly 1, the left front fitting member 26b also includes first and second portions that are identical to those of the right front fitting member 26a. Therefore, the portions have the same reference numerals.

[0123] In order to ensure direct contact between the cut-off edge 25 and the downstream edge 510 of the reflecting plate 51, the left front bonding member 26b is arranged so that the lower surface 263 of the second part 262 is parallel to the horizontal plane H2 passing through the first horizontal part 251 of the cut-off edge 25, and so that the distance between the lower surface 263 and the plane H2 is equal to or slightly less than the total thickness of the reflecting member 5.

[0124] Planes H1 and H2 are shown in Figure 4 middle.

[0125] Since plane H2 is located at a higher level than plane H1, left front conforming member 26b is slightly offset upward relative to right front conforming member 26a. This offset corresponds to the distance between plane H1 and plane H2.

[0126] Here, the total thickness of the reflective member is the sum of the thickness e of the support plate 52 and the thickness of the reflective plate 51. Since the reflective plate 51 is very thin, the thickness of the plate is not indicated in the drawing.

[0127] According to the present invention and Figure 7 , 8 10 to 12 , the first optical component 2 may also include two lateral stop members 27 , which are arranged to prevent the movement of the reflective member 5 along the transverse axis Y.

[0128] The lateral stop members 27 are identical and arranged symmetrically with respect to the main axis A. For this reason, only the lateral stop member located on the right side of the main axis A is described below, with the reference numeral 27a. The description applies in the same way to the other members not described. The same is true for the elements connected to the lateral stop members. Of course, the differences between the two sides will also be described.

[0129] According to the invention and as in this embodiment, the lateral stop member can be formed by a pin 27a protruding relative to the first face 24 of the first optical component 2. In this embodiment, the pin 27a has a circular cross section. In addition, the pin 27a and the first optical component 2 are made in one piece.

[0130] In this case, the reflective member 5 includes a slit 28a extending along the longitudinal axis X. Here, the slit 28a is formed by a first opening 514 made on the reflective plate 51 and a second opening 524 made on the support plate 52. The first opening 514 and the second opening 524 have the same size and are located at the same position. Therefore, when the reflective plate 51 is placed on the support plate 52, the first opening 514 and the second opening 524 overlap and align to form the slit 28a.

[0131] Here, the width of the slit 28a measured along the transverse axis Y is equal to the diameter of the pin 27a. Therefore, according to the invention and as in this embodiment, when the reflective member 5 is assembled to the first optical component 2, the pin 27 engages in the slit 28a and abuts against the two longitudinal edges 280 of the slit 28a. The longitudinal edges 280 extend substantially parallel to the longitudinal axis X. The pin 27a so positioned makes it possible to prevent the movement of the reflective member 5 along the transverse axis Y.

[0132] Furthermore, according to the invention and as in this embodiment, the pin 27a and the slit 28a are arranged to allow the pin 27 to slide in the slit 28a along the longitudinal axis X in the direction from upstream to downstream until the pin 27 abuts against the upstream transverse edge 281 to prevent the movement of the reflective member along the longitudinal axis X in the direction from upstream to downstream. Such movement is caused by Fig.10 This is indicated by the arrow F1 shown.

[0133] Here, the upstream transverse edge 281 extends substantially parallel to the transverse axis Y and is situated behind the slit 28a.

[0134] Thus, once engaged in the slit 28a, the pin 27a simultaneously blocks movement of the reflective member 5 along the longitudinal axis X and along the transverse axis Y.

[0135] like Fig.12 As shown in the figure, in the left part 4 of the optical assembly, the lateral stop member 27 is also formed by a pin of circular cross section, which is referenced as 27b. The pin 27b is inserted into the slit 28b. However, unlike the straight part 6, the pin 27b only abuts against the upstream transverse edge 281 of the slit 28b. The pin 27b does not abut against the longitudinal edge 280 of the slit 28b, because the width of the slit 28b is greater than the diameter of the pin 27b. This forms a play in the transverse direction, which facilitates the installation of the reflecting member.

[0136] According to the invention and as in the illustrated embodiment, the first optical component 2 can comprise two identical rear bonding members 29 which are also arranged on the left and right part of the first optical component, respectively.

[0137] Here, since the rear apposition member 29 has the same shape no matter how it is placed, only the rear apposition member located on the right side of the main axis A is described, which is represented by the reference numeral 29a below. This description applies in the same manner to the apposition member located on the left side of the main axis A, which is represented by the reference numeral 29b in the drawings. If there is a difference between the two sides, it will be discussed. The same is true for the elements connected to the rear apposition member.

[0138] The right rear fitting member 29a is shown in Fig.13 and 14 middle.

[0139] According to the present invention and as in this embodiment, the right rear fitting member 29a may include a straight portion 290 and a rounded portion 291 extending downstream from the free end of the straight portion 290. In this case, the rounded portion 291 and the straight portion 290 are arranged to define a receiving space for the elastic tongue 523.

[0140] According to the invention and as in the embodiment shown, the support plate 52 may include at least one elastic tongue 523 located at the rear of said plate 52. Here, the support plate includes two elastic tongues 523, located at the rear and respectively on the left and right. Only the right tongue is described below.

[0141] The elastic tongue 523 contacts the rear coating member 29a by applying a prestress to prevent movement along the reflecting member 5 along the longitudinal axis X in the direction from downstream to upstream. Such movement is caused by Fig.11 This is indicated by the arrow F2 shown in FIG.

[0142] Specifically, when the reflective member 5 is fixed to the first optical component 2, the free end 527 of the tongue 528 abuts against the straight portion 290 of the rear abutment member 29a under stress.

[0143] like Fig.10 As shown, the contact of the elastic tongue 523 under stress with the corresponding portion 29a of the first optical component 2 (here against the straight portion 290 ) generates a force which presses the upstream lateral edge 281 of the slit against the pin 27a of the first optical component 2 .

[0144] Furthermore, according to the invention and as in this embodiment, the tongue 523 also abuts against the rounded portion 291 to prevent movement of the reflective member 5 along the vertical axis Z.

[0145] Specifically, the upper surface 528 of the tongue 523 contacts the lower surface 292 of the rounded portion 291 .

[0146] In order to bring the tongue 523 into contact with the rounded portion 219, the support plate 52 comprises two claws 525 and 526 arranged on either side of the tongue 523. These two claws are placed on the upper surface 310 of the headland 30 downstream of the input diopter 21.

[0147] like Figure 2 , 3 , 6 and 7 , the headland 30 is here formed by a rectangular block substantially parallel to the transverse axis Y. The upper surface 310 of the headland 30 is planar and substantially parallel to a plane containing the axes X and Y. In the embodiment shown, the headland 30 is integral with the first optical component 2 .

[0148] According to the invention and as in this embodiment, the contact between the tongue 523 and the rounded portion 291 is due to the fact that the distance between the upper surface 310 and the lower surface 292 of the rounded portion 291 measured along the vertical axis Z is equal to or slightly smaller than the thickness of the reflective member 5 .

[0149] With the support plate 52 and the rear bonding member 29a configured in this way, the support plate 52 is assembled to the first optical component 2 by clamping.

[0150] Therefore, the rear abutment member 29a forms a stop member that prevents both vertical and longitudinal movement of the reflective member 5.

[0151] Furthermore, the rear lamination member 29 ensures direct contact between the cut-off edge 25 and the downstream edge 510 of the reflective plate 51 on either side.

[0152] More specifically, at the straight portion 6 of the optical assembly 1, the rear bonding member 29a ensures direct contact between the second horizontal portion 252 of the cutoff edge 25 and the corresponding portion of the downstream edge 510 of the reflective plate. To this end, the first optical component 2 is arranged so that the distance between the upper surface 310 and the lower surface 292 of the rounded portion 291 measured along the vertical axis Z is equal to or slightly less than the thickness of the reflective member 5, and so that the upper surface 310 of the cape 30a of the straight portion 6 is included in the horizontal plane H1 passing through the second horizontal portion 252 of the cutoff edge 25.

[0153] With respect to the left side 4 of the optical assembly 1, the left rear affixing member 29b also includes the same right portion and rounded portion as those of the right rear affixing member 29a. Therefore, the portions are denoted by the same reference numerals.

[0154] In order to achieve the same contact between the cut-off edge 25 and the downstream edge 510 of the left side 4 of the optical assembly 1, the same conditions must be met. This means that the distance between the upper surface 310 of the left headland 30b and the lower surface 292 of the rounded portion 291 of the left rear abutment member 29b measured along the vertical axis Z is equal to or slightly less than the thickness of the reflective member 5. In addition, the upper surface 310 of the left headland 30b is in the horizontal plane H2 passing through the first horizontal portion 251 of the cut-off edge 25.

[0155] Here, since the H2 plane is located at a higher altitude than the H1 plane, the left cape 30b is higher than the right cape 30a.

[0156] For example, the optical assembly 1 described in the previous paragraph is constituted as follows Fig.16 A portion of a lighting module 10 is shown. The lighting module 10 comprises an optical assembly 1 and a converging lens 9. The converging lens 9 is arranged such that its focal point F is located in the vicinity of the cut-off edge 25 and the downstream edge 510.

[0157] The lighting module further comprises a light source 8. Each light source 8 is arranged facing each input diopter 21. The light guide 20 is arranged to reflect light from the light source 8 towards the base outlet 22.

[0158] The lighting module 10 is capable of generating a light beam having a cut-off line along an optical axis I. In this embodiment, the optical axis I is substantially parallel to the main axis A.

[0159] The following will use Fig.17 The working principle of the lighting module 10 according to the present invention is described. For the sake of clarity, the principle is described only for a single light guide, but the principle is applicable to all other light guides.

[0160] The light source 8 emits first rays R1 which, after being reflected inside the light guide, are sent to the cut-off edge 25. Since the focus F of the converging lens 9 is at the cut-off edge 25, the first rays R1 leave the converging lens 9 parallel to the optical axis I. The projection of these first rays R1 forms the cut-off line of the light beam generated by the lighting module 10.

[0161] The light source 8 emits second light rays R2 which, after being reflected in the light guide 20, pass under the cut-off edge 25. The lens 9 and the optical assembly are arranged so that the second light rays R2 are sent to the converging lens 9. As these second light rays pass under the cut-off edge, they leave the lens along a first axis intersecting the optical axis I and towards the same first side (here upwards) of a horizontal plane passing through the optical axis.

[0162] The light source 8 emits third rays R3 which, after being reflected in the light guide 20, reach the first face 24 of the first component 2, which sends them back to the converging lens 9. They then leave the lens along a second axis intersecting the optical axis I and also towards the first side (here upwards) of the horizontal plane passing through the optical axis. Thus, the first face 24 of the first optical component forms a bend of the light beam emitted by the light source 8.

[0163] The projection of the second and third light rays R2 and R3 forms a portion of the light beam projected by the lens 9 that is located above the cut-off line. The resulting light beam is a light beam with a cut-off line, also referred to as a cut-off beam. For example, as shown in the figure, it can be the upper part of the high beam.

[0164] It should be noted here that the reflective member 5 has no optical function for the first optical component 2 .

[0165] In this embodiment, the reflective member 5 has an optical function of causing the light generating assembly 20 placed above the optical assembly 1 to generate a low-beam beam.

[0166] The low-beam beam has, on the one hand, a cut-off line identical to the cut-off line of the beam generated by the optical component 1 and, on the other hand, a shape complementary to the shape of the beam generated by the optical component 1 at the cut-off line.

[0167] The light generating component 20 is Fig.16 It is schematically shown in FIG.

[0168] Specifically, the reflective member 5 is provided with a generating assembly 20 so that the fourth light rays R4 coming from said generating assembly 20 and passing through the downstream edge 550 leave the converging lens 9 parallel to the optical axis I. The projection of these fourth light rays R4 forms a cut-off line of the low beam.

[0169] In addition, the arrangement of the reflective member 5 and the generating assembly makes the fifth light ray R5 from the generating assembly and reaching the reflecting surface 513 of the reflecting plate 51 reflect toward the converging lens 9. The fifth light ray R5 leaves the lens (here downward) along an axis intersecting the optical axis I and toward the second side of the horizontal plane passing through the optical axis. The fifth light ray R5 is therefore projected below the cut-off line.

[0170] The reflective plates of the reflective member 5 thus form a bender for the light beam leaving the assembly.

[0171] The low-beam beam generated by the generating assembly and the cut-off beam generated by the optical assembly 1 form a high-beam beam.

[0172] Since the cut-off edge 25 forming the cut-off line of the cut-off beam generated by the optical assembly 1 is in direct contact with the downstream edge 550 forming the cut-off line of the low-beam beam generated by the generating assembly, the projections of the cut-off lines of said beams merge, which allows better combination between said beams.

[0173] In addition, due to the direct contact between the edge 550 and the cut-off edge 25, the cut-off beam generated by the optical assembly 1 has no black band at the cut-off line. Therefore, when the beam is combined with the low beam, the high beam obtained from the combination has no black transition line formed by the black band, which therefore makes it possible to improve the optical performance of the high beam.

[0174] Figures 18 to 25 A second embodiment of an optical assembly 100 according to the invention is shown.

[0175] The optical assembly 100 is also designed to generate a cut-off beam that is complementary to the low-beam beam and forms an upper portion of the high-beam beam.

[0176] The optical assembly 100 includes a first optical component 200 and a reflective member 50 disposed on the first optical component 200 .

[0177] In the second embodiment, the reflecting member 50 is also constituted by the supporting plate 58 and the reflecting plate 57 .

[0178] The first optical component 200 is similar to the first optical component 2 of the first embodiment. The first optical component 200 comprises light guides extending along the longitudinal axis X. Each light guide comprises an input diopter and a base outlet. A common outlet 23 forming the front surface of the first optical component 200 is arranged downstream of the base outlet.

[0179] As in the first embodiment, the upper edge of the front surface of the first optical component forms the cut-off edge 25. The latter is identical to that given in the first embodiment, that is to say it comprises a first horizontal portion 251, a second horizontal portion 252 and an intermediate portion 253 connecting the first horizontal portion 251 to the second horizontal portion 252. Furthermore, in the same manner as in the first embodiment, the reflector 57 is delimited by a downstream edge 550 which is in direct edge-to-edge contact with the cut-off edge 25 and is perfectly aligned with said edge 25, seen from above.

[0180] As in the first embodiment, the optical component 200 has a main axis A that passes through the middle of the middle portion 253 and divides the optical component 200 into a left portion 4 and a right portion 6. The terms "left" and "right" correspond to Fig.18 on the left and right sides.

[0181] The first optical component 200 further includes a front fitting member 2600, a rear fitting member 2900, and a lateral stopper 2800. Here, the front fitting member 2600, the rear fitting member 2900, and the lateral stopper 2800 on one hand are formed integrally with the first optical component 200 on the other hand.

[0182] In the same manner as in the first embodiment, the number of the fitting members and the lateral stop members is two. In the same pair, one is located on the straight portion 6 and the other is located on the left portion 4. The reference numerals of the members of the right portion end with the letter "a", while the reference numerals of the members of the left portion end with the letter "b".

[0183] Unlike the first embodiment, here only the support plate 58 is in contact with the front fitting member, the rear fitting member and the lateral stop members.

[0184] Since the front fitting components 2600 have the same shape, only the left component 2600a will be described below. Unless otherwise specified, the description applies to the other component 2600b in the same manner. The differences between the two components will be mentioned.

[0185] According to the invention and as in this embodiment, the right front conforming member 2600a may include a first portion 2610 extending substantially along the vertical axis Z and a second portion 2620 extending upstream from one end of the first portion 2610. The conforming member 2600a thus has the shape of a hook.

[0186] In this case, the support plate 58 includes a central portion on which the reflective plate 57 is placed and two lateral portions arranged on both sides of the central portion. Each lateral portion includes an elongated arm 540 or 560 extending downstream.

[0187] When the reflective member 50 is mounted on the first optical component 200 , the front bonding member 2900 a contacts the elongated arm 560 of the support plate 58 .

[0188] Specifically, Fig. 20 As shown in FIG. 5 , the lower surface 2630 of the second portion 2620 contacts the upper surface 530 of the support plate 58 at the arm 560. This contact prevents the reflection member 50 from moving along the vertical axis Z in a direction away from the first optical component 200.

[0189] In addition, according to the present invention and as in this embodiment, the downstream end 5121 of the slender arm 560 can also contact the rear surface 2611 of the first part 2610, which prevents the reflective member 50 from moving along the longitudinal axis X and in the upstream to downstream direction, as shown by arrow F1.

[0190] Therefore, the front abutment member 2600a forms a stopper that prevents both vertical and longitudinal movement of the reflective member 50.

[0191] In addition, the front affixed member 2900 is arranged to ensure direct contact between the downstream edge 510 of the reflective member 50 and the cut-off edge 25. To this end, on the left side portion 4, the left front affixed member 2600a is arranged so that the distance between the lower surface 2630 of the first portion 2620 and the plane H1 is equal to or slightly less than the thickness of the reflective member 50. Here, Fig.18 The plane H1 shown in FIG. 2 is a horizontal plane passing through the second horizontal portion 252 of the first optical member 200. The plane H1 of the second example is substantially the same as that of the first example.

[0192] Similarly, on the right side portion 6, the right front fitting member 2600b includes a second portion, the lower surface of which is similar to that shown in FIG. Fig.18 The plane H2 in the second embodiment is at a certain distance. The distance is equal to or slightly less than the thickness of the reflective member. It should be noted that the plane H2 is a horizontal plane passing through the first horizontal portion 251 of the cut-off edge. The plane H2 of the second embodiment is substantially the same as that of the first embodiment.

[0193] As in the first embodiment, since plane H2 is located above plane H1, left front conforming member 2600b is offset upward relative to right front conforming member 2600a. This offset corresponds to the distance between plane H1 and plane H2.

[0194] The lateral stop components are not identical here, so they will be described separately below.

[0195] According to the present invention and as in this embodiment, the lateral stop member 2800a may be arranged on one side of the first optical component, here the right side. In this case, the member 2800a is formed by a protrusion extending from the upper surface of the first optical component 200. On the other hand, the support plate 58 includes a recess 580 located at the same position as the right side stop member 2800a. The recess 580 is also called a notch.

[0196] like Fig. 20 As shown in , when the reflective member 50 is placed on the first optical component 200, the edge 581 of the recess 580 contacts the inner side 2810 of the member 2800a, thereby preventing the reflective member 50 from moving in the direction from left to right along the transverse axis Y as indicated by arrow F3.

[0197] On the other side of the first optical component 200, the left side stopping member 2800b is formed of a block protruding from the upper surface of the first optical component 200. The protruding block has a greater thickness than the protrusion forming the right side stopping member 2800a.

[0198] The support plate 58 includes a flexible tongue 582 extending from a left side edge 584 of the support plate 58. The flexible tongue 582 is located facing the left side stop member 2800b. Here, the width of the flexible tongue 582 is substantially equal to the width of the member 2800b.

[0199] like Fig. 22 and Fig.23 As shown, when the reflective member 50 and the first optical component 200 are assembled with each other, the flexible tongue 582 abuts against the inner side 2820 of the stop member 2800b by bending upward. The left stop member 2800b is also referred to as a supporting member.

[0200] The support of the tongue on the stop member 2800b makes it possible to prevent the support plate 58 (and therefore the reflective member 50) from moving laterally in the direction from right to left as shown by the arrow F4. In addition, the support of the tongue 582 against the lug 2800b generates a force that presses the recess 580 against the protrusion 2800a.

[0201] Furthermore, when the reflective member 50 is mounted on the first optical component 200, the deformability of the flexible tongue 582 makes it possible to absorb the expansion of the medium of the reflective member 50. In the event that the reflective member 50 expands, it is only necessary to press the expanded portion of the member 50 to make it flat. Thus, the flattening of the reflective member 50 makes the flexible tongue 582 more curved.

[0202] With regard to the rear fitting member 2900, it has the same shape. Therefore, for the sake of clarity, only the left member 2900a is described below. Unless otherwise specified, the description applies to the other member 2900b in the same manner. The differences between the two members will be mentioned.

[0203] According to the present invention and as in this embodiment, the right rear fitting member 2900a can include a straight portion 2910 and a rounded portion 2920. The latter has a substantially triangular cross-section here. The rounded portion 2920 extends downstream from the upper end of the straight portion 2910.

[0204] In this case, the support plate 58 includes a rear portion 585 that is curved upward, that is, curved opposite to the first face of the first optical component 200 .

[0205] According to the present invention and as in this embodiment, the rear end 5850 of the curved rear portion 585 may contact the rear fitting member 2900 a to prevent the reflective member 50 from moving along the vertical axis Z in a direction away from the first optical component 200 .

[0206] Specifically, Fig.24 and Fig.25 As shown, the rear end 5850 of the curved rear portion 585 is in contact with the lower surface 2930 of the rounded portion 2920 .

[0207] Therefore, in this embodiment, the rear abutment member 2900a also serves as a stopper to prevent the movement of the reflective member 5 along the axis Z. The abutment member is also referred to as a vertical stop member 2900a.

[0208] Furthermore, behind the reflective member 50, the support plate 58 is placed on a protrusion 250 formed integrally with the first optical component 200. The protrusion 250 is located downstream of the rear bonding member 2900b and includes a planar upper surface, which contacts the support plate 58.

[0209] In order to ensure direct contact between the downstream edge 570 of the reflective member 50 and the cut-off edge 25, the protrusion 250 and the rear bonding member 2900b are arranged so that the upper surface of the protrusion 250 belongs to the plane H, and so that the distance between the lower surface 2930 of the chamfered portion 2920 and the plane H1 measured along the vertical axis Z is substantially equal to the height h of the curved rear portion 585.

[0210] In order to achieve the same contact between the cut-off edge 25 and the downstream edge 570 of the left side portion 4 of the optical assembly 100, the same conditions apply in a similar manner to the left rear abutment member 2900b and the left protrusion (not visible in the figure). Specifically, the upper surface of the left protrusion should belong to the plane H2. In addition, the distance between the lower surface of the rounded portion of the left side member 2900b and the plane H2 should be substantially equal to the height h of the curved rear portion 585.

[0211] Due to the offset between the planes H1 and H2, the left protrusion is higher than the right protrusion 250. The height difference corresponds to the distance between the planes H1 and H2.

[0212] The optical assembly 100 as described above may constitute a part of the above-described light emitting module 10 by replacing the optical assembly 1 according to the first embodiment.

Claims

1. An optical component (1, 100) for forming a light beam with a cut-off line, the optical component (1, 100) comprising: A first optical component (2, 200) made of a transparent material comprises: Light guides (20), each light guide comprising an input diopter (21) and a base outlet (22); a common outlet (23) located downstream of the basic outlet (22); a first face (24) extending between the basic outlet (22) and the common outlet (23), said first face (24) being delimited downstream by a cut-off edge (25); a reflective material, the reflective material being different from the material of the first optical component (2, 200) and being arranged facing the first face (24) of the first optical component (2, 200), the reflective material (5, 50) extending from the cut-off edge (25) toward the basic outlet (22); The reflective material and the first optical component (2) are arranged to be held to each other without complementary components and such that the reflective material is in direct contact with the cut-off edge (25); The reflective material is formed by a reflective member (5, 50) different from the first optical component (2, 200) or by a reflective coating; When the reflective material is formed by a reflective member (5, 50) different from the first optical component (2, 200) and having a first face (511), the first optical component (2, 200) comprises at least one abutting member (26, 29; 2600, 2900), the abutting member being arranged so that the first face of the reflective member (5, 50) is in direct contact with the cut-off edge (25), the first optical component (2, 200) and the abutting member (26, 29; 2600, 2900) being formed as an integral single piece; The first face (511) of the reflective member (5, 50) has a downstream central portion (510), the direct contact is achieved through the downstream central portion, and the central portion (510) is in direct contact with the first optical component (2, 200) only on the cut-off edge (25); and The downstream central portion (510) is delimited downstream by a downstream edge (550), the direct contact between the downstream central portion (510) and the first optical component (2, 200) being formed by the direct contact of the downstream edge (550) with the entire cut-off edge (25).

2. The optical component (1, 100) according to claim 1, wherein: The reflective member (5, 50) has the first face (511) on one side and a second face (513) on the other side, the second face (513) being reflective.

3. The optical component (1, 100) according to claim 1 or 2, wherein: The first optical component (2, 200) has: a longitudinal axis (X) extending in a direction from upstream to downstream of the first optical component (2, 200), a second axis (Y) extending from one side of the cut-off edge (25) to the other side and orthogonal to the longitudinal axis (X), and a third axis (Z) orthogonal to said longitudinal axis (X) and said second axis (Y), The first optical component (2, 200) comprises a stop member (26, 27, 29; 2600, 2800, 2900), wherein the stop member (26, 27, 29; 2600, 2800, 2900) contacts a stop portion (512, 28, 523; 540, 560, 581, 585) of the reflective component (5, 50) to prevent the reflective component (5, 50) from moving relative to the first optical component (2, 200) along at least one of the three axes (X, Y, Z).

4. The optical component (1, 100) according to claim 3, wherein: At least one of the stop members (26, 27, 29; 2600, 2800, 2900) is arranged to press the reflective member (5, 50) against the cut-off edge (25).

5. The optical component (1, 100) according to claim 1, wherein: The reflective member (5, 50) includes at least one stress elastic portion (523, 582), which abuts against a corresponding supporting portion (29, 2800b) of the first optical component (2, 200) to generate a force, and the force presses at least one stop portion (281, 581) of the reflective member (5, 50) against a corresponding stop member (29, 2800a) of the first optical component (2, 200).

6. The optical component (1, 100) according to claim 1, wherein: The reflective member (5, 50) is formed by one or more plates (51, 52; 57, 58).

7. The optical component (1, 100) according to claim 6, wherein: The reflective member (5, 50) comprises two parts: a reflective plate (51, 57) and a support plate (52, 58), wherein the support plate (52, 58) is supported by the first optical component (2, 200) and supports the reflective plate (51, 57), and the direct contact is formed at the reflective plate (51, 57).

8. The optical component (1, 100) according to claim 6 or claim 7, wherein: The plate or the support plate (52, 58) comprises a resilient tongue (523; 582) forming a resilient portion.

9. The optical assembly (100) according to claim 8, wherein: The support portion (29; 2800b) is formed by a protruding block (2800b) provided on one side of the first optical component (200), and The elastic portion is formed by an elastic tongue (582) facing the protruding block (2800b), and the elastic tongue (582) is pressed against the protruding block (2800b) under stress by bending relative to the first face of the first optical component (200).

10. A lighting module (10) for a motor vehicle, the lighting module being capable of forming a light beam along an optical axis and comprising: An optical component (1, 100) according to any one of the preceding claims; A plurality of light sources (8), each of which is arranged facing each input diopter (21); a light guide (20) arranged to guide light from the light source (8) towards a base outlet (22) through one or more reflections; and a converging lens (9), the focal plane of which is arranged in the vicinity of a cut-off edge (25) of the first optical component (2); The optical assembly (1, 100) is arranged such that the first face of the first optical component forms a bender for the light rays coming from the elementary exits, so that the light rays leaving the lens (9) form a first beam having a cut-off line which is an image of the cut-off edge (25).

11. The light-emitting module (10) according to claim 10 further comprises a light generating component, wherein the first optical component (2, 200) is arranged on one side of the reflecting member (5, 50), and the light generating component emits light on the other side of the reflecting member (5, 50), so that the reflecting member (5, 50) forms a bender for the light from the generating component (20), thereby forming a second light beam, which has a cut-off line substantially the same as the first light beam on the one hand, and a shape complementary to the first light beam at the cut-off line on the other hand.

12. The lighting module (10) according to claim 11, wherein: The second light beam is a low beam and the first light beam is an upper portion of a high beam, such that the two light beams together form a high beam.

Images