Light-emitting module and vehicle

Abstract

The present invention relates to a light-emitting module and a vehicle. The light-emitting module (1) has a main light emission direction and includes a first light source (52) used for a first light function, a first reflector (22) that receives and reflects the light emitted from the first light source, a second light source (53) used for a second light function, a second reflector (23) that receives and reflects the light emitted from the second light source, a carrier (3) on which the light source and the reflector are arranged, and a lens (4) that projects the light emitted from the light source and reflected by the corresponding reflector. The lens (4) is configured to form a light distribution associated with the reflective surfaces of the first reflector and the second reflector in a corresponding manner, and the first light source, the first reflector, the second light source (53), and the second reflector are arranged on the same mounting surface (7) of the carrier.

Description

Technical Field

[0001] The present invention relates to a light-emitting module and a vehicle.

Background Art

[0002] In the prior art, various light-emitting modules are known that are used to generate illumination beams, signal beams, or combinations thereof in automobiles.

[0003] For example, the document, Chinese Patent No. 102460002B, discloses an illumination module for an automobile. The illumination module includes two concave reflectors each having a first focus and a second focus, and most of the light emitted from the corresponding first focus and reflected by the corresponding concave reflector converges toward the corresponding second focus. One of the reflecting surfaces of the concave reflectors is directed toward the reflecting surface of the other concave reflector. The illumination module further includes a shielding element that is basically provided in a plane between the two concave reflectors and has a first surface and a second surface facing the reflecting surfaces of the corresponding concave reflectors, and further includes a cut-off end connecting the first surface and the second surface, and an optical element including a focus on a plane perpendicular to the optical axis of the illumination module and passing through the cut-off end. The cut-off end of the illumination module is located at the second focus of the two concave reflectors.

[0004] In the above types of illumination modules, high positioning accuracy is required. In addition, especially when the two concave reflectors are arranged overlapping each other, due to the structural size of the concave reflectors, it is necessary to ensure a given dimension in the height direction during installation.

Summary of the Invention

[0005] Therefore, an object of the present invention is to provide a light-emitting module that can at least partially overcome the above-mentioned drawbacks.

[0006] According to a first aspect of the present invention, a light-emitting module for a vehicle is proposed. This light-emitting module has a main light-emitting direction, a first light source used for a first light function, a first reflector assigned to the first light source that receives and reflects the light radiated from the first light source along the main light-emitting direction, a second light source used for a second light function, a second reflector assigned to the second light source that receives and reflects the light radiated from the second light source along the main light-emitting direction, a carrier on which the first light source, the first reflector, the second light source, and the second reflector are arranged, and a lens that projects the light radiated from the first light source and the second light source. The lens is configured to form by corresponding the light distribution related to the reflecting surfaces of the first reflector and the second reflector. The first light source, the first reflector, the second light source, and the second reflector are arranged on the same mounting surface of the carrier.

[0007] In the proposed light-emitting module, by arranging the light sources and the corresponding reflectors for different light functions on the same surface of the carrier, it is possible to effectively reduce the height of the entire light-emitting module, thereby realizing a compact size. Here, the "light function" can be understood as an illumination function or a signal transmission function.

[0008] According to an embodiment of the present invention, the lens is a component and has a plurality of regions assigned to the corresponding reflectors. These regions have a corresponding focal region and an optical axis corresponding to the main light-emitting direction. Preferably, the focal region can be a focal line. Therefore, by individually designing each region of the lens, it is possible to match the corresponding region of the lens to the assigned reflector, thereby adjusting the light radiated from the light source and forming a light distribution corresponding to the reflecting surface of the related reflector.

[0009] According to an embodiment of the present invention, in the light propagation direction along the main light emission direction, the reflecting surface of the corresponding reflector has a front end portion and a rear end portion. At the operating position of the light emitting module, the front end portion corresponds to the lower side of the light distribution, and the rear end portion corresponds to the upper side of the light distribution. The focal region exists at the rear end portion of the reflecting surface of the corresponding reflector, or near it, and / or the focal region exists in or near the intermediate portion between the front end portion and the rear end portion of the reflecting surface of the corresponding reflector. Therefore, the focal region can fall within a spatial range where the distance to the rear end portion and / or the intermediate portion is less than 10 mm, preferably less than 5 mm. In other words, as long as the focal region exists at the rear end portion or the intermediate portion, or near it, it is achievable, and thus it is also achievable for the focal region to exist in front of, behind, or to the left or right of the rear end portion or the intermediate portion. In this way, it is also possible to form a clean light distribution for the corresponding optical function. Therefore, in this embodiment, the light emitting module is not affected by the tolerance of the positioning of the light source with respect to the reflecting surface, and it is only necessary to ensure that the reflecting surface of the reflector is within the tolerance range with respect to the lens, which is advantageous in manufacturing and assembly.

[0010] According to an embodiment of the present invention, the optical function is selected from a low beam function, a high beam function, and a signal transmission function. Therefore, for example, the first optical function is a low beam function, the second optical function is a high beam function, and further a third signal transmission function is provided. Therefore, when the light emitting module is mounted on a vehicle, compared with the prior art, a smaller light emission region in the vertical direction of the vehicle can be simultaneously utilized by a plurality of optical functions, which is advantageous for meeting the requirements of the light distribution for a vehicle lamp with a compact size.

[0011] According to an embodiment of the present invention, at least one of the first light source and the second light source is provided with a shielding body. The shielding body is arranged in front of the light source along the light propagation direction in the main light emission direction, and the shielding body is preferably opaque. By providing the shielding body, light from the light source that is not reflected by the reflector can be received to prevent interference by such light. Particularly in the light distribution of a low beam with a cut-off line (bright-dark boundary line), it is not desirable for the area above the cut-off line to be irradiated. Preferably, the opaque shielding body can absorb the received light. Of course, the shielding body may be a reflector that reflects light toward other light absorption regions, for example.

[0012] According to an embodiment of the present invention, the mounting surface forms an inclination angle with respect to the main light emission direction, and this inclination angle is 20° or less, preferably 15° or less, preferably 10° or less, preferably 5° or less. When the light emission angle of the light source is not 180°, in this arrangement, the light source can irradiate the rear end portion of the reflecting surface or the region immediately behind the rear end portion better.

[0013] According to an embodiment of the present invention, the minimum distance between the rear end portion and the light source is in the range of 1 mm to 5 mm. This enables a compact structure in which the reflecting surface is surely irradiated.

[0014] According to an embodiment of the present invention, the first light source and the second light source are semiconductor light sources. The semiconductor light source may be a light emitting diode, for example, a white, yellow, and red light emitting diode, or a light emitting diode that emits light of other colors. The light emitting diode is easily available on the market and is easy to assemble. Such a light source can emit light in the half space defined by the mounting surface, and for example, has a light emission angle of 120° in this half space.

[0015] According to an embodiment of the present invention, the first light source and the second light source are arranged on a printed circuit board, preferably near the edge of the printed circuit board. Thereby, for example, the size of the printed circuit board can be reduced.

[0016] According to an embodiment of the present invention, the printed circuit board has a notch for a shield. The shield for the light source may protrude through the notch of the printed circuit board so that the shield is as close as possible to the light source to which the shield is assigned. Here, the notch may be provided in the surface area of the printed circuit board body or at the edge of the printed circuit board body. In the latter case, the notch forms a recess at the edge of the printed circuit board body.

[0017] According to an embodiment of the present invention, the reflecting surface of the reflector has a parabolic contour or an elliptical contour. Therefore, the reflecting surface of the reflector can be formed by rotating the parabolic contour or the elliptical contour around an axis. The axis corresponds to the optical axis of the lens. The reflecting surface of the reflector is a composite reflecting surface, that is, when it includes a plurality of parts, the single continuous reflecting surface forming each part of the reflecting surface may have the above-described parabolic contour or elliptical contour, and the parts may be arranged alternately along the main light emission direction or in a direction transverse to the main light emission direction. The reflecting surface or a part thereof may be an asymmetric surface. Also, the reflecting surface of the reflector may be another free-form surface. Here, the "free-form surface" can generally be understood optically as being formed by curves and surfaces that change freely and complexly, that is, so-called free curves and free-form surfaces.

[0018] According to an embodiment of the present invention, the carrier is a component of a part made of a heat-dissipating material. As a result, the heat radiated by the light source can be dissipated directly through the carrier to the surrounding environment while keeping the structure compact. In order to increase the heat dissipation area, a fin structure may be provided on the carrier.

[0019] According to an embodiment of the present invention, a partition is provided on the carrier, and this partition preferably extends in the vertical direction in the operating position of the light-emitting module and is preferably light-absorbing in order to prevent the light reflected by one reflecting surface or a part thereof from interfering with the light reflected by another reflecting surface or a part thereof. Therefore, the reflector can be arranged more compactly.

[0020] According to an embodiment of the present invention, the reflector of the light emitting module is integrally mounted. Thereby, the positioning and assembly of the reflector can be simplified.

[0021] According to an embodiment of the present invention, the light emitting module is an illumination module and / or a signal transmission module. The light emitting module can create, for example, an illumination beam such as a low beam or a high beam, a signal beam such as a beam for direction indication, position adjustment, braking, etc., or a beam for illumination and indication.

Brief Description of the Drawings

[0022] The present invention will be described in more detail below with reference to the drawings.

[0023]

Figure 1

Figure 2

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Figure 12

Embodiments for Carrying Out the Invention

[0024] Embodiments of the present invention will be illustratively described below. As those skilled in the art will appreciate, the described embodiments can be modified in various ways without departing from the concept of the present invention. Therefore, the drawings and the description are illustrative and not inherently restrictive. Hereinafter, the same drawing reference labels generally indicate functionally identical or similar elements.

[0025] FIG. 1 is a 3D view of an assembled light-emitting module 1 according to the present invention. The light-emitting module 1 mainly includes a cover 2, a carrier 3, a lens 4, a reflector unit and a light source unit that are arranged in the space defined by the above three components but not shown in FIG. 1. The light-emitting module 1 has a main light-emitting direction H. The above components of the light-emitting module 1 in FIG. 1 will be further described below with reference to FIGS. 2 to 5. It can be seen that the output surface 44 of the lens 4 is a single continuous surface.

[0026] Figure 2 shows the carrier 3 of the light-emitting module 1. The reflector unit 21, the light source unit 5, and the lens 4 can be arranged on the main part 30 of the carrier 3. Therefore, the carrier 3 is provided with an appropriate positioning mechanism. Specifically, the carrier 3 includes a positioning hole 39 and a screw hole 36 for the positioning pin 25 of the reflector unit 21, which is a screw hole 36 through which a threaded component can be screwed through the through hole 26 of the reflector unit 21, a positioning pin 32 and a screw hole 34 for the light source unit 5, where the positioning pin 32 is received in the hole 55 of the carrier 51 of the light source unit 5, and the screw hole 34 of the carrier 3 through which a threaded component can be screwed through the hole 54 of the carrier 51, and a receiving groove 38 used to receive the positioning lug 41 of the lens 4.

[0027] Also, the carrier 3 can be provided with a protruding shield 35. In the assembled light-emitting module 1, the shield 35 is arranged in front of the relevant light source of the light source unit 5 in the main light-emitting direction of the light-emitting module 1 to block unnecessary light. The shield 35 is preferably opaque.

[0028] Furthermore, a positioning mechanism 33 is provided to fix the carrier 3 to a bracket (not shown), and this positioning mechanism 33 can be, for example, in a protruding shape with screw holes provided.

[0029] It should be noted that the above-described positioning mechanism is only an example, and as long as the above-described components can be connected to each other, other realizable positioning mechanisms including but not limited to joining, clamping, welding, etc. can also be provided.

[0030] The carrier 3 can be provided with a heat sink 31 to dissipate the heat radiated by the light source to the surrounding environment during operation. To increase the heat dissipation area, the heat sink 31 can be designed to have, for example, a plurality of fins.

[0031] Further, the carrier 3 can be provided with a partition 37 in order to prevent interference of light emitted from different light sources that operate simultaneously when light sources for different functions are arranged on the carrier 3. A partition 37 in the shape of a flat plate extending in the vertical direction is shown. Advantageously, the partition 37 is light-absorbing, for example, and includes a light-absorbing layer.

[0032] In the example shown, the carrier 3 is realized as a single component, that is, the carrier 3 can integrally have the above-described positioning means, shielding body, heat sink, partition, or combinations thereof, etc., without the need to separately assemble them later. Therefore, especially when the carrier 3 integrally includes the above-described positioning mechanism, shielding body, heat sink, and partition, the carrier 3 is preferably cast from a heat-dissipating material, such as aluminum, copper, or an alloy thereof, or other suitable materials. For example, when the carrier 3 is formed by casting an aluminum alloy, cost efficiency can be ensured with a carrier having sufficient strength, hardness, and light weight.

[0033] The light source unit 5 has a light source 50 and a connector 58 for electrically connecting the light source 50 to an external power source.

[0034] The shown light source unit 5 includes a printed circuit board 51, and the light source 50 and the connector 58 are arranged on the printed circuit board 51. The printed circuit board 51 is provided with positioning and fixing holes 54 and 55 as described above. Specifically, the positioning hole 55 can be, for example, a combination of a circular hole and an elliptical hole. Alternatively, in an example not shown, the light source 50 of the light source unit 5 may be directly arranged on the carrier 3, especially when the carrier 3 is made of a heat-dissipating metal material. Therefore, the surface of the printed circuit board 51 or the corresponding surface of the carrier 3 to which the light source 50 is directly attached can form the mounting surface 7.

[0035] When the printed circuit board 51 is provided, the printed circuit board 51 is thermally connected to the carrier 3 or the heat sink 31. For this reason, a thermally conductive medium, such as a thermally conductive paste or a thermally conductive sheet, may be applied or attached between the printed circuit board 51 and the heat sink 31.

[0036] The light source 50 is preferably mounted near the edge of the mounting surface 7, as will be further described below. In FIG. 3, in the main light emission direction of the light emitting module 1, the light source 50 is arranged near the front end portion of the printed circuit board 51, and the shape of the front end portion is designed according to practical constraints. In order to minimize costs, it is preferable that the size of the printed circuit board 51 is as small as possible. The printed circuit board 51 has a notch 56 for the shield 35 in front of some of the light sources, and the shield 35 can protrude from the notch 56 as can be seen particularly clearly in FIG. 6.

[0037] In order to realize different functions, the light sources 50 of the light source unit 5 may be divided into different groups. For example, the light source 50 can have a first light source 52 used for a first light function and a second light source 53 used for a second light function. Here, the corresponding light functions can be an illumination function, a signal transmission function, or a combination thereof. Therefore, the first light function and the second light function described above are not limited, and light sources for a third light function, a fourth light function, etc. may be provided. By way of example, the first function may be a low beam function and the second function may be a high beam function, or the first function may be a low beam function and the second function may be a direction indication function. Only a few examples are given here, but other combinations may be considered. The number of light sources used for each light function can be determined based on actual needs. In addition, the light sources of each light function may be arranged alternately along the main light emission direction and / or in a direction transverse to the main light emission direction in order to form the required light distribution.

[0038] Advantageously, the light source 50 is a semiconductor light source, specifically a light emitting diode. The color of the light of the light source 50 may be determined as required.

[0039] A reflector unit 21 is provided to direct the light emitted from the light source 50 toward the lens 4 and is assigned to the light source unit 5. FIG. 4 shows the reflector unit 21 formed on one side of the cover 2. In this case, for example, the reflector unit 21 may be formed by applying a metal coating, such as an aluminum coating, to the corresponding side surface after injection molding of the cover 2. Alternatively, the reflector unit 21 may be provided separately and fixed to a carrier, and such a reflector unit 21 is preferably a component. The material forming the reflecting surface must have good heat resistance and is, for example, glass or a synthetic polymer such as polycarbonate or polyetherimide.

[0040] The reflector unit 21 can be divided into different reflectors corresponding to light sources for different optical functions. For example, the reflector unit 21 can have a first reflector 22 assigned to the first light source 52 that receives and reflects the light emitted from the first light source 52 along the main light emission direction H, and a second reflector 23 assigned to the second light source 53 that receives and reflects the light emitted from the second light source 53 along the main light emission direction H. Each reflector can have a reflecting surface assigned to the corresponding light source, and this reflecting surface can be a single continuous surface or a composite reflecting surface having a plurality of continuous sub-surfaces.

[0041] An example of the composite reflecting surface is shown in FIG. 4. That is, the first reflector 22 has four reflecting surfaces 22A, 22B, 22C, 22D for four light sources of the first optical function, and the second reflector 23 has five reflecting surfaces 23A, 23B, 23C, 23D, 23E for five light sources of the second optical function, and all the reflecting surfaces are arranged alternately. Of course, a larger number of light sources may be assigned to each reflecting surface.

[0042] The reflecting surface of each reflector of the reflector unit 21 may have a parabolic contour or an elliptical contour formed by rotation, and the light source can be arranged, for example, at the focal point of the above-described reflecting surface. Here, the "reflecting surface" described should be understood as a single continuous surface as a reflecting surface, that is, in the case of a composite reflecting surface having a plurality of continuous sub-surfaces, it should be understood as a part of the reflecting surface. Of course, other shapes of reflecting surfaces may be considered.

[0043] The lens 4 is configured to receive and project the light emitted from the light source and reflected by the reflecting surface. The main part 40 of the lens 4 has a discontinuous input surface 43 that can be divided into a plurality of parts. In the example of FIG. 5, the input surface 43 is divided into six parts, 43A, 43B, 43C, 43D, 43E, 43F, which are connected to share a continuous output surface 44. Therefore, the lens 4 can be regarded as being divided into six regions, that is, 40A, 40B, 40C, 40D, 40E, 40F, which form sub-lenses and each act with a different group of light sources for each optical function. That is, one of the plurality of light sources for the same optical function can operate individually or in combination with the above-described sub-lenses. For example, in the example shown, referring to the figure of FIG. 10 (only some of the regions of the lens are numbered for clearer display), the first light source 52 for the first optical function is divided into two groups. One group assigned to region 40C has one light source, and the other group assigned to region 40D has three light sources. Each light source of the second light source 53 for the second optical function is assigned to regions 40A, 40B, 40E, 40F. In order to prevent interference by light from different groups of light sources when a plurality of light sources operate simultaneously, a partition 37 is provided between the reflecting surface and the sub-lenses. It should be noted that the division of the input surface of the lens 4 and the light source as described above is only an example, and different divisions can also be conceived based on the required light distribution. Each region of the lens 4 can be used to form a given area with the desired light distribution.

[0044] Each region of the lens 4 has its own optical axis 6 corresponding to the main light emission direction of the light emitting module.

[0045] The lens 4 is held in the receiving groove 38 of the carrier 3 by a lug 41 connected to the main part 40 of the lens 4. The lug 41 may have a protrusion 42 that is inserted into the bottom of the receiving groove 38, and since the cover 2 can abut against the side opposite to the protrusion 42 of the lug 41 in the assembled state, the lens is fixed.

[0046] The lens 4 is preferably a single component and is made of, for example, a transparent thermoplastic polymer such as polycarbonate or polymethyl methacrylate. The input surface and the output surface of the lens may be formed from silicone or other transmissive materials according to the desired refractive index.

[0047] Each sub - lens has its own focal regions F1 and F2. The focal regions are preferably the focal lines present on the associated reflecting surface. Thus, the lens 4 is configured to form corresponding to the light distribution related to the reflecting surface of the associated reflector. Specifically, in the example shown, in the light propagation direction along the main light emission direction H, the reflecting surfaces 22A, 22B, 22C, 22D, 23A, 23B, 23C, 23D, 23E of the corresponding reflectors 22 and 23 have a front end portion 22A1, 22B1, 22C1, 22D1, 23A1, 23B1, 23C1, 23D1, 23E1, and a rear end portion 22A2, 22B2, 22C2, 22D2, 23A2, 23B2, 23C2, 23D2, 23E2, and the lens is configured such that at the operating position of the light - emitting module 1, the front end portion corresponds to the lower side of the light distribution and the rear end portion corresponds to the upper side of the light distribution.

[0048] I. The focal region F1 can be present at or near the rear end portions 22A2, 22B2, 22C2, 22D2 of the reflecting surfaces 22A, 22B, 22C, 22D of the corresponding reflector 22. The front end portion forms the lower side of the light distribution, the rear end portion forms the upper side of the light distribution, and the upper side forms the boundary of the light distribution with respect to the region not irradiated by the beam, and / or,

[0049] II. The focal region F2 can be present in or near the middle part between the front end portions 23A1, 23B1, 23C1, 23D1, 23E1 and the rear end portions 23A2, 23B2, 23C2, 23D2, 23E2 of the reflecting surfaces 23A, 23B, 23C, 23D, 23E of the corresponding reflector 23, and the reflecting surface can be divided into an upper reflecting portion 23O and a lower reflecting portion 23U. In this way, the light distribution formed can be regarded as the upper side and the lower side of the optical axis 6 when the optical axis 6 of the corresponding sub-lens passes through the focal region F2.

[0050] Therefore, in the case of I above, it is particularly suitable for forming a low beam function, because it only requires designing the rear end portion of the reflecting surface accordingly. In the case of II, it is particularly suitable for forming a high beam function, a part of the high beam function, or other signal light functions.

[0051] Here, it should be noted that the focal regions F1 and F2 fall within a range where the distance to the rear end portion 22A2, 22B2, 22C2, 22D2, and / or the middle part is less than 10 mm, preferably less than 5 mm.

[0052] Therefore, the light source 50 and the reflector unit 21 can be arranged on the same mounting surface 7 of the carrier 3 (see FIG. 7). In particular, this makes it possible to arrange the reflector for the low beam function and the reflector for the high beam function on the same side of the mounting surface, and the light emitting surface of the light emitting module 1, that is, the lens 4, can be made to have a small height, for example, less than 25 mm, or even a smaller height. For this reason, in the reflector 22 used to realize the low beam function, the focal region of the corresponding sub-lens exists at the rear end portion of the reflecting surface or near it, and in the reflector 23 used to realize the high beam function, the focal region of the corresponding sub-lens exists in or near the middle part between the front end portion and the rear end portion of the reflecting surface.

[0053] For some of the reflecting surfaces of the reflector for low beam function, such as reflecting surfaces 22B, 22C, and 22D, the rear end portions 22B2, 22C2, and 22D2 can have protrusions that extend straight in a plane perpendicular to the optical axis 6 of the sub-lens at the operating position of the light emitting module 1. As a result, a cut-off portion in the horizontal direction can be formed in the low beam distribution. The protrusion of the rear end portion 22A2 of the other reflecting surface 22A in the plane perpendicular to the optical axis 6 of the sub-lens has two linear extensions and an intermediate portion connecting these two linear extensions. According to relevant regulations, the intermediate portion can be obliquely connected to the two vertically staggered linear extensions at an inclination angle of, for example, 15° or 45°. The two linear extensions can be collinearly connected via an intermediate portion curved upward or downward. In summary, the orientation of the rear end portion of the reflecting surface of the reflector for low beam function is designed according to the cut-off profile of the low beam distribution required by the regulations.

[0054] When the reflecting surface of the reflector is used for other optical functions, especially the front end portion and the rear end portion of the reflecting surface, they may be designed based on the desired light distribution shape in the same way as the reflecting surface of the reflector for low beam function described above.

[0055] In the single continuous reflecting surface of the reflector, the rear end portion forming the edge of the reflecting surface may have an extension that is directly connected to the front end portion on the plane where the rear end portion is located, or may be connected to the front end portion via an intermediate edge on another plane. As clearly shown in FIG. 4, the reflecting surface 22C has an intermediate edge 22C3 between its front end portion 22C1 and rear end portion 22C2. The intermediate edge 22C3 is not in the same plane as either the front end portion 22C1 or the rear end portion 22C2. The rear end portion 23A2 of the reflecting surface 23A extends on one side and intersects the front end portion 23A1, and is connected to the front end portion 22A1 via an intermediate edge 23A3 on the opposite side. In other words, the reflecting surface can be flexibly designed to match the required final light distribution.

[0056] In addition to arranging the mounting surface 7 parallel to the main light emission direction of the light emitting module, FIGS. 7 and 8 show an embodiment of the light emitting module 1, the mounting surface 7 is inclined with respect to the optical axis 6, and the mounting surface 7 is formed by a printed circuit board 51 or a carrier 3 to which a light source is assembled. The inclination angle between the mounting surface 7 and the optical axis 6 is 20° or less, preferably 15° or less, preferably 10° or less, preferably 5° or less. When the light emission angle of the light source is not 180°, in this arrangement, the light source can better irradiate the rear end portion of the reflecting surface or the region immediately behind the rear end portion.

[0057] The minimum distance between the rear end portion and the light source is in the range of 1 mm to 5 mm. This enables a compact structure in which the reflecting surface is surely irradiated.

[0058] FIGS. 11 and 12 show the beam path in the case of a single continuous reflecting surface having an elliptical contour. It can be seen that the beam emitted from the light source and reflected by the reflecting surface converges at a point near the relevant area of the lens, thereby reducing the width of the beam at the incident surface of the lens.

[0059] The light emitting module according to the present invention can be used as an illumination module and / or a signal transmission module in a vehicle lamp. Therefore, the light emitting module can produce, for example, an illumination beam such as a low beam or a high beam, a signal beam which is a beam for, for example, direction indication, position adjustment, braking, etc., or a beam for illumination and indication.

[0060] The present invention is not limited to the above-described structure and can take other modifications. Although the present invention has already been described using a limited number of embodiments, those skilled in the art will be able to devise other embodiments that benefit from the present disclosure and do not depart from the protection scope of the present invention disclosed herein. Therefore, the protection scope of the present invention should be defined only by the appended claims.

Claims

1. A light-emitting module (1) for a vehicle having a main light emission direction (H), comprising: a first light source (52) used for a first light function; a first reflector (22) that receives and reflects light emitted from the first light source (52) along the main light emission direction (H); a second light source (53) used for a second light function; a second reflector (23) that receives and reflects light emitted from the second light source (53) along the main light emission direction (H); a carrier (3) on which the first light source (52), the first reflector (22), the second light source (53), and the second reflector (23) are arranged; a lens (4) that projects light emitted from the first light source (52) and reflected by the first reflector (22) and light emitted from the second light source (53) and reflected by the second reflector (23); wherein the lens (4) is configured to form a light distribution corresponding to the light distribution related to the reflecting surfaces of the first reflector (22) and the second reflector (23); the first light source (52), the first reflector (22), the second light source (53), and the second reflector (23) are arranged on the same mounting surface (7) of the carrier (3); the lens (4) is a component and has a plurality of regions (40A to 40F) assigned to corresponding reflectors among the first reflector (22) and the second reflector (23); the plurality of regions (40A to 40F) each have a corresponding focal region (F1, F2) and each optical axis (6), and each of the optical axes (6) corresponds to the main light emission direction (H); in the light propagation direction along the main light emission direction, the reflecting surfaces of the corresponding reflectors among the first reflector (22) and the second reflector (23) have a front end portion and a rear end portion, and at the operating position of the light-emitting module (1), the front end portion corresponds to the lower side of the light distribution and the rear end portion corresponds to the upper side of the light distribution; the following features, namely: - the feature that the focal region (F1) is located at or near the rear end portion (22A2, 22B2, 22C2, 22D2) of the reflecting surface of the corresponding reflector (22) among the first reflector and the second reflector, and - The feature that the focal region (F2) is present in or near the middle portion between the front end portion (23A1, 23B1, 23C1, 23D1, 23E1) and the rear end portion (23A2, 23B2, 23C2, 23D2, 23E2) of the reflecting surface of the corresponding reflector (23) among the first reflector and the second reflector. The light emitting module (1) comprising at least one of them. **Claim 2** The light emitting module (1) according to claim 1, wherein the focal region (F1, F2) enters the rear end portion (22A2, 22B2, 22C2, 22D2) and / or a spatial range where the distance to the middle portion is less than 10 mm. **Claim 3** The light emitting module (1) according to claim 1, wherein each of the first optical function and the second optical function includes one or more of a low beam function, a high beam function, and a signal transmission function. **Claim 4** At least one of the first light source (52) and the second light source (53) (shielding body-provided light source) is provided with a shielding body (35). The shielding body (35) is arranged in front of the corresponding shielding body-provided light source in the main light emission direction (H) in order to receive light that propagates forward along the main light emission direction (H) from the shielding body-provided light source and is not reflected by the reflecting surface. The shielding body (35) is opaque. The light emitting module (1) according to claim 1. **Claim 5** The mounting surface (7) forms an inclination angle (α) with respect to the main light emission direction (H), and the inclination angle is 20° or less. The light emitting module (1) according to claim 1. **Claim 6** The minimum distance between the rear end portion and the first and second light sources is in the range of 1 mm to 5 mm. The light emitting module (1) according to claim 1. **Claim 7** The first light source (52) and the second light source (53) are semiconductor light sources. The light emitting module (1) according to any one of claims 1 to 6. **Claim 8** The first light source (52) and the second light source (53) are arranged on a printed circuit board (51). The light emitting module (1) according to claim 7. **Claim 9** The printed circuit board (51) has a notch (56) for the shielding body (35). The light emitting module (1) according to claim 8 when claim 7 quotes claim 4. **Claim 10** The light-emitting module (1) according to any one of claims 1 to 6, wherein the reflecting surface of each of the first and second reflectors has a parabolic contour or an elliptical contour.

11. The light-emitting module (1) according to any one of claims 1 to 6, wherein the carrier (3) is a component of a part made of a heat-dissipating material.

12. The light-emitting module (1) according to any one of claims 1 to 6, wherein the carrier (3) is provided with a partition (37), and the partition (37) extends in the vertical direction at the operating position of the light-emitting module (1) and is light-absorbing.

13. The light-emitting module (1) according to any one of claims 1 to 6, wherein one or both of the first and second reflectors of the light-emitting module (1) are integrally mounted.

14. The light-emitting module (1) according to any one of claims 1 to 6, wherein the focal regions (F1, F2) are focal lines.

15. The light-emitting module (1) according to any one of claims 1 to 6, wherein the light-emitting module (1) is an illumination module and / or a signal transmission module.

16. A vehicle light-emitting module (1) having a main light-emitting direction (H), a first light source (52) used for a first light function, a first reflector (22) that receives and reflects light radiated from the first light source (52) along the main light-emitting direction (H), a second light source (53) used for a second light function, a second reflector (23) that receives and reflects light radiated from the second light source (53) along the main light-emitting direction (H), a carrier (3) on which the first light source (52), the first reflector (22), the second light source (53), and the second reflector (23) are arranged, a lens (4) that projects light radiated from the first light source (52) and reflected by the first reflector (22) and light radiated from the second light source (53) and reflected by the second reflector (23), comprising: the lens (4) is configured to form by corresponding to the light distribution related to the reflecting surfaces of the first reflector (22) and the second reflector (23), the first light source (52), the first reflector (22), the second light source (53), and the second reflector (23) are arranged on the same mounting surface (7) of the carrier (3). The carrier (3) is provided with a partition (37), and the partition (37) extends in the vertical direction at the operating position of the light emitting module (1) and is light-absorbing, the light emitting module (1).

17. A light emitting module (1) for a vehicle having a main light emission direction (H), A first light source (52) used for a first light function, A first reflector (22) that receives and reflects light emitted from the first light source (52) along the main light emission direction (H), A second light source (53) used for a second light function, A second reflector (23) that receives and reflects light emitted from the second light source (53) along the main light emission direction (H), A carrier (3) on which the first light source (52), the first reflector (22), the second light source (53), and the second reflector (23) are arranged, A lens (4) that projects light emitted from the first light source (52) and reflected by the first reflector (22) and light emitted from the second light source (53) and reflected by the second reflector (23), Including, The lens (4) is configured to form by corresponding to the light distribution related to the reflecting surfaces of the first reflector (22) and the second reflector (23), The first light source (52), the first reflector (22), the second light source (53), and the second reflector (23) are arranged on the same mounting surface (7) of the carrier (3), The lens (4) is a component and has a plurality of regions (40A to 40F) assigned to the corresponding reflectors among the first reflector (22) and the second reflector (23), The plurality of regions (40A to 40F) each have a corresponding focal region (F1, F2) and each optical axis (6), and each of the optical axes (6) corresponds to the main light emission direction (H), The focal regions (F1, F2) are focal lines, the light emitting module (1).

18. A vehicle having the light emitting module (1) according to any one of Claims 1, 16, and 17.

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