Adaptive high beam module and vehicle lamp

Abstract

The application provides an adaptive high beam module and a vehicle lamp, and relates to the technical field of vehicle lamps. The adaptive high beam module comprises: a light source assembly, which comprises a plurality of light emitting groups arranged at intervals along a first direction, each light emitting group comprising two light emitting units arranged at intervals along a second direction; a first lens arranged on the light emitting side of the light source assembly, the first lens comprising a plurality of light inlets and a light outlet opposite to the plurality of light inlets, the light emitting groups and the light inlets being arranged one by one, the light inlets comprising two sub-light inlets arranged at intervals along the second direction, and each light emitting unit being opposite to a sub-light inlet; and a second lens arranged on the side of the first lens away from the light source assembly; the light emitted by each light emitting group enters the first lens through the light inlet and exits the second lens through the light outlet, the second lens receives the exiting light of the light outlet and projects it into an illumination sub-area, a plurality of illumination sub-areas are spliced along the first direction to form an ADB light pattern, and the first direction is perpendicular to the second direction.

Description

Technical Field

[0001] This application relates to the field of automotive lighting technology, and in particular to an adaptive high beam module and automotive lighting. Background Technology

[0002] With the development of intelligent vehicle technology, vehicle lighting is becoming increasingly intelligent, and adaptive high beam systems that can adapt to different scenarios are gradually becoming standard equipment for intelligent vehicles.

[0003] In related technologies, the ADB (Adaptive Driving Beam) module consists of a light source, a condenser, a lens group, and other structures. The lens group refracts the light from the light source multiple times, thereby projecting the ADB light pattern in the far field.

[0004] However, the aforementioned ADB scheme uses one light source per pixel. This makes it difficult to achieve high brightness for each pixel in the ADB pattern, resulting in a generally low overall brightness. To increase brightness, an additional supplementary lighting module is required, making the solution more complex and costly. Utility Model Content

[0005] This application proposes an adaptive high beam module and vehicle headlight, aiming to improve the problem of low brightness in adaptive high beam modules in related technologies.

[0006] The specific technical solution is as follows: In a first aspect, embodiments of this application propose an adaptive high beam module, comprising: a light source assembly including a plurality of light-emitting groups arranged at intervals along a first direction, each light-emitting group including two light-emitting units arranged at intervals along a second direction; a first lens disposed on the light-emitting side of the light source assembly, the first lens including a plurality of light-incident portions and a light-emitting portion opposite to the plurality of light-incident portions, the light-emitting groups and the light-incident portions being arranged in a one-to-one correspondence, the light-incident portion including two sub-light-incident portions arranged at intervals along the second direction, each light-emitting unit being opposite to one of the sub-light-incident portions; and a second lens disposed on the side of the first lens away from the light source assembly; light emitted from each light-emitting group is incident into the first lens through the light-incident portions and emitted from the light-emitting portions to the second lens, the second lens receiving the emitted light from the light-emitting portions and projecting it into an illumination sub-area, the plurality of illumination sub-areas being spliced ​​together along the first direction to form an ADB light pattern, the first direction and the second direction being perpendicular.

[0007] The adaptive high beam module of this application, through the cooperation of a first lens and a second lens, projects and stitches the light from multiple light-emitting groups into an ADB (Adaptive High Beam) pattern, with each light-emitting group corresponding to a pixel light spot. Furthermore, each light-emitting group has two light-emitting units, and a single illumination sub-area is supplied with light by two light sources, thereby increasing the luminous flux of the illumination sub-area. Further, each light-emitting unit is provided with a sub-light-incident section, allowing the two light-emitting units of each light-emitting group to receive light independently, reducing light loss and stray light interference caused by light beam crossing, and improving light source utilization. This is beneficial for improving the brightness of each illumination sub-area, and consequently, for improving the brightness of the ADB pattern. Moreover, it eliminates the need for an additional supplementary lighting module, simplifying the structure and reducing costs.

[0008] In some embodiments, the ends of the two sub-light-incident portions near the light-outcident portion overlap each other, and the ends of the two sub-light-incident portions near the light source assembly are separated from each other.

[0009] This configuration allows, firstly, the light emitted from the two light-emitting units to enter the first lens through their respective independent optical paths, preventing light interference and thus reducing light loss and stray light. This improves the sharpness and clarity of the edges of the final emitted illumination sub-region. Secondly, the light from the two light-emitting units undergoes light fusion through the overlapping area of ​​the two sub-incident light sections before exiting the light-emitting section. This results in a uniformly distributed, single pixel spot, mitigating ghosting, double-peak spots, and abnormal spot shapes caused by dual light sources. This further enhances the uniformity and pattern of illumination in each illumination sub-region.

[0010] In some embodiments, the first lens includes a substrate, the plurality of light-incident portions and the light-outcident portions are respectively disposed on opposite sides of the substrate in the thickness direction; a groove is provided on the side surface of the substrate near the light-incident portion, each groove being located between two adjacent light-incident portions; the width of the groove gradually increases along the direction from the bottom of the groove to the opening of the groove.

[0011] By incorporating grooves, optical crosstalk between adjacent light-receiving elements can be mitigated, resulting in sharper and clearer boundaries between bright and dark areas in the ADB beam pattern. Furthermore, the grooves are widest at their openings, allowing for a certain distance between adjacent light-receiving elements, further reducing optical crosstalk and thus enhancing the anti-glare effect of the ADB beam pattern.

[0012] In some embodiments, the root edge of the light-incident portion is connected to the groove opening edge of the groove. The light-incident portion includes a first total reflection surface and a second total reflection surface disposed opposite to each other along the first direction. The two sub-light-incident surfaces share the first total reflection surface and the second total reflection surface. Along the direction from the bottom of the groove to the groove opening, the distance between the first total reflection surface and the second total reflection surface gradually decreases.

[0013] This configuration offers several advantages. First, it facilitates the fabrication of each light-receiving element, reduces costs, and increases the production yield of the first lens. Second, it allows for the arrangement of more light-emitting groups within a limited space, thereby improving the horizontal resolution of the adaptive high-beam module and enhancing its anti-glare effect. Third, it avoids light crosstalk between adjacent light-receiving elements, further improving the anti-glare effect of the ADB beam pattern and enhancing the performance and reliability of the adaptive high-beam module.

[0014] In some embodiments, the two sub-light-incident portions are a first sub-light-incident portion and a second sub-light-incident portion; the first sub-light-incident portion includes a first sub-light-incident surface and a third total reflection surface and a fourth total reflection surface connected to the first sub-light-incident surface, the third total reflection surface and the fourth total reflection surface being arranged parallel to each other along the second direction; the second sub-light-incident portion includes a second sub-light-incident surface and a fifth total reflection surface and a sixth total reflection surface connected to the second sub-light-incident surface, the fifth total reflection surface and the sixth total reflection surface being arranged parallel to each other along the second direction; The fourth total reflection surface and the fifth total reflection surface are connected to each other and set at an angle.

[0015] The above design firstly improves light loss and stray light, thereby enhancing the clarity and sharpness of the edges of the final emitted illumination sub-region, and improving the performance and reliability of the adaptive high beam module. Secondly, the light from the two light-emitting units is fused at the overlapping area of ​​the two sub-incident light sections, forming a uniformly distributed, single pixel spot, thus improving issues such as ghosting, double-peak spots, and abnormal spot shapes caused by dual light sources. This, in turn, improves the uniformity of illumination and the light pattern effect of each illumination sub-region.

[0016] In some embodiments, the light-emitting portion includes a light-emitting surface, which is a cylindrical surface, and the guideline of the cylindrical surface extends along the second direction.

[0017] This design, firstly, improves the accuracy of ADB beam pattern control and enhances beam pattern quality. Secondly, the cylindrical structure is simple, which facilitates the fabrication of the first lens and reduces costs.

[0018] In some embodiments, the second lens is a focal lens and a convex lens. Firstly, this improves the ease of manufacturing the second lens and reduces costs. Secondly, the focal lens has good image quality, which also helps improve the beam pattern quality.

[0019] In some embodiments, the second lens is a Fresnel lens, the light-incident surface of the second lens is a Fresnel structure, and the light-exit surface of the second lens is a plane.

[0020] This also helps to reduce the thickness of the second lens, thereby reducing its volume, which in turn helps to reduce costs and shrinkage and other deviations during injection molding.

[0021] In some embodiments, the first lens includes a substrate, and the plurality of light-incident portions and the light-outceasing portions are respectively disposed on opposite sides of the substrate in the thickness direction; Along the third direction, the focal point of the second lens is located between the light-emitting surface of the light-emitting part and the side surface of the substrate near the light-incident part.

[0022] This configuration allows the focal point of the second lens to be close to the point where the light rays from the two light-emitting units converge. This improves image quality and sharpness, reduces aberrations, and consequently enhances the projection sharpness and brightness of the ADB beam pattern.

[0023] Secondly, embodiments of this application propose a vehicle headlight, including the adaptive high beam module described in the first aspect. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of the adaptive high beam module provided in the embodiments of this application; Figure 2 for Figure 1 Enlarged structural diagram at point M; Figure 3 This is a schematic diagram of the structure of the light source assembly and the first lens provided in the embodiments of this application; Figure 4 This is a schematic diagram of the structure of the first lens provided in an embodiment of this application; Figure 5a This is a simulation diagram of the ADB light pattern in related technologies; Figure 5b A simulation diagram of the ADB beam pattern emitted by the adaptive high beam module provided in this application embodiment; Figure 6 This is a schematic diagram of the optical path of the light-emitting group and the first lens in the second direction provided in an embodiment of this application; Figure 7 A top view of the light source assembly and the first lens provided in the embodiments of this application; Figure 8 This is a schematic diagram of the optical path of the light-emitting group and the first lens in a first direction provided in an embodiment of this application; Figure 9 This is another structural schematic diagram of the adaptive high beam module provided in the embodiments of this application.

[0025] The annotations in the attached figures are explained as follows: 10. Adaptive high beam module; 100, Light source assembly; 110, Light emission group; 111, Light emission unit; 111a, First light emission unit; 111b, Second light emission unit; 200, First lens; 210, Light-entry section; 211, Sub-light-entry section; 211a, First sub-light-entry section; 211b, Second sub-light-entry section; 2111, First sub-light-entry surface; 2112, Second sub-light-entry surface; 212, First total reflection surface; 213, Second total reflection surface; 214, Third total reflection surface; 215, Fourth total reflection surface; 216, Fifth total reflection surface; 217, Sixth total reflection surface; 220, Light-exit section; 221, Light-exit surface; 230, Substrate; 231, Groove. 300. Second lens. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0027] In the description of this application, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the accompanying drawings are only for illustrative purposes and should not be construed as limiting this application. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0028] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as implying or suggesting relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0029] In the description of this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0030] like Figures 1 to 4 As shown, in a first aspect, this application provides an adaptive high beam module 10. The adaptive high beam module 10 includes a light source assembly 100, a first lens 200, and a second lens 300. The light source assembly 100 includes a plurality of light-emitting groups 110 spaced apart along a first direction. Each light-emitting group 110 includes two light-emitting units 111 spaced apart along a second direction. The first lens 200 is disposed on the light-emitting side of the light source assembly 100. The first lens 200 includes a plurality of light-incident portions 210 and a light-emitting portion 220 opposite to the plurality of light-incident portions 210. The light-emitting groups 110 and the light-incident portions 210 are arranged in a one-to-one correspondence. The light-incident portion 210 includes a light-emitting unit 300 spaced apart along a second direction. Two sub-light-incident sections 211 are arranged at two-way intervals. Each light-emitting unit 111 is opposite to a sub-light-incident section 211. A second lens 300 is disposed on the side of the first lens 200 away from the light source assembly 100. The light emitted by each light-emitting group 110 enters the first lens 200 through the light-incident section 210 and exits through the light-emitting section 220 to the second lens 300. The second lens 300 receives the light emitted from the light-emitting section 220 and projects it into an illumination sub-area. Multiple illumination sub-areas are spliced ​​together along the first direction to form an ADB light pattern. The first direction and the second direction are perpendicular.

[0031] In this application, the adaptive high beam module 10 includes a light source assembly 100, a first lens 200, and a second lens 300. The adaptive high beam module 10 is an ADB module, which can realize zone-controlled adaptive high beam lighting to avoid glare to vehicles or pedestrians ahead, while maximizing illumination of other areas.

[0032] The light source assembly 100 includes multiple light-emitting groups 110, and each light-emitting group 110 includes two light-emitting units 111. The light-emitting units 111 are used to emit light and can be LED chips or other light-emitting devices that can be independently controlled to light up or turn off; this application does not impose any limitations on this. The two light-emitting units 111 of each light-emitting group 110 are simultaneously lit or turned off to form a pixel light spot.

[0033] The adaptive high beam module 10 can receive signals from the vehicle's ADB control system, enabling precise and rapid independent control of the on / off state and brightness of each light-emitting group 110, thereby achieving the "adaptive" zone control ADB function. The light-emitting groups 110 are arranged along a first direction, which can be the left-right direction of the vehicle, such as the Y direction in the attached figure. The number of light-emitting groups 110 determines the fineness of the zoning that the adaptive high beam module 10 can independently control; the more groups, the finer the zoning and the more precise the control. Optionally, a second direction is defined as the vehicle's height direction, which is also the height direction of the first lens 200 and the second lens 300, such as the Z direction in the attached figure; a third direction is defined as the vehicle's front-rear direction, which is also the thickness direction of the first lens 200 and the second lens 300, such as the X direction in the attached figure.

[0034] The first lens 200 can be made of materials such as polymethacrylimide, polymethyl methacrylate, and polycarbonate, thereby reducing the manufacturing cost of the adaptive high beam module 10. The first lens 200 includes multiple light-incident sections 210 and light-outcident sections 220, with each light-incident section 210 including two sub-light-incident sections 211. Each light-emitting unit 111 of the multiple light-emitting groups 110 corresponds one-to-one with a sub-light-incident section 211. That is, each light-emitting unit 111 independently corresponds to one sub-light-incident section 211, equivalent to each light-emitting unit 111 being equipped with a dedicated focusing, collimating, and shaping optical channel, ensuring the independence of light emission from each light-emitting unit 111.

[0035] The second lens 300 is a projection lens. It can also be made of materials such as polymethacrylimide, polymethyl methacrylate, or polycarbonate, further reducing the manufacturing cost of the adaptive high beam module 10. The light emitted from each light-emitting group 110 is initially modulated by the corresponding light-incident section 210 and light-outcrystal section 220 before entering the second lens 300. The second lens 300 modulates the light again and projects it into the far field, forming an illumination sub-region (pixel spot). In this way, the multiple illumination sub-regions formed by the multiple light-emitting groups 110 are stitched together in the far field along the first direction Y, ultimately combining to form a complete, zone-controllable ADB beam pattern.

[0036] The adaptive high beam module 10 of this application embodiment projects and stitches the light from multiple light-emitting groups 110 into an ADB (Adaptive High Beam) pattern through the cooperation of a first lens 200 and a second lens 300. Each light-emitting group 110 corresponds to a pixel light spot. Furthermore, each light-emitting group 110 has two light-emitting units 111, and a single illumination sub-area is illuminated by two light sources working together, thereby increasing the luminous flux of the illumination sub-area. Further, each light-emitting unit 111 is provided with a sub-light-incident section 211, allowing the two light-emitting units 111 of each light-emitting group 110 to receive light independently, reducing light loss and stray light interference caused by light beam crossing, and improving light source utilization. This is beneficial for improving the brightness of each illumination sub-area, and consequently, for improving the brightness of the ADB pattern. Moreover, it eliminates the need for an additional supplementary lighting module, simplifying the structure and reducing costs.

[0037] Secondly, among the multiple light-emitting groups 110, the light paths of the middle light-emitting groups 110 are closer to the focal point of the second lens 300. The light energy is more concentrated after being projected by the second lens 300, which is also beneficial to improving the center brightness value of the ADB light pattern.

[0038] Furthermore, in this application, brightness is enhanced by vertical (second direction) superposition within the pixel without affecting the number of pixels in the first direction. The number of light-emitting groups 110 in the first direction determines the number of independent and controllable illumination sub-regions, which also helps to optimize the light pattern resolution while improving brightness.

[0039] In addition, the shared light-emitting section 220 merges the independent light rays from the two light-emitting units 111 within a light-emitting group 110, making the light intensity distribution of the final projected single illumination sub-area more uniform and the edges clearer, which also helps to improve the accuracy of light pattern control and the uniformity of light spot.

[0040] Please refer to Figure 5a and Figure 5b , Figure 5a This is a simulation diagram of an ADB module in related technologies using a single light source to illuminate one pixel, with a maximum brightness of 91.6 Lx. Figure 5b This is a simulation diagram of the illumination of a single pixel formed by the adaptive high beam module 10 in this application embodiment. Its maximum brightness is 139Lx, and the brightness is improved by 51.7%.

[0041] like Figures 1 to 4 , Figure 6 As shown, in some embodiments, the ends of the two sub-light-incident sections 211 near the light-emitting section 220 overlap each other, and the ends of the two sub-light-incident sections 211 near the light source assembly 100 are separated from each other.

[0042] In this embodiment, the ends of the two sub-light-incident sections 211 near the light-emitting section 220 are physically connected optical regions; the ends of the two sub-light-incident sections 211 near the light source assembly 100 are separated from each other, each having its own corresponding light-incident port, and each is aligned with a light-emitting unit 111. Viewed from the first direction, the light-incident section 211 has a V-shaped structure.

[0043] This configuration allows for several advantages. First, during the initial light input phase of the two light-emitting units 111, the two sub-light-input sections 211 construct two independent optical channels. The light emitted from the two light-emitting units 111 can enter the first lens 200 through their respective independent optical paths, preventing light interference and thus improving light loss and stray light. This improves the sharpness and clarity of the edges of the final emitted illumination sub-region. Second, after initial modulation by their respective sub-light-input sections 211, the light from the two light-emitting units 111 undergoes light fusion through the overlapping area of ​​the two sub-light-input sections 211 before exiting the light-emitting section 220. This results in a uniformly distributed, single pixel spot, improving issues such as ghosting, double-peak spots, and abnormal spot shapes caused by dual light sources. This improves the uniformity and pattern of illumination in each illumination sub-region. Furthermore, partially overlapping the two sub-light-input sections 211 enhances the mechanical strength of the first lens 200, thereby improving the reliability and stability of the module.

[0044] like Figures 2 to 4 , Figure 7 As shown, in some embodiments, the first lens 200 includes a substrate 230, a plurality of light-incident portions 210 and light-exit portions 220 respectively disposed on opposite sides of the substrate 230 in the thickness direction, and a groove 231 is provided on the side surface of the substrate 230 near the light-incident portion 210. Each groove 231 is located between two adjacent light-incident portions 210, and the width of the groove 231 gradually increases along the direction from the bottom of the groove to the opening of the groove 231 (from the light-exit portion 220 to the light-incident portion 210).

[0045] In this embodiment, the substrate 230 of the first lens 200 is provided with a plurality of grooves 231, and the grooves 231 are located between two adjacent light-incident sections 210. It is understood that not all the light emitted by each light-emitting unit 111 is incident into the corresponding sub-light-incident section 211; some light rays at large angles are incident into adjacent light-incident sections 210. This causes light crosstalk between two adjacent light-incident sections 210, making the cutoff line of the ADB light pattern blurry.

[0046] This embodiment, by providing a groove 231, can absorb a portion of large-angle stray light. Furthermore, the groove 231 gradually increases in width from its root to its opening, further ensuring the capture of stray light from different angles over a wider range, thus improving the stray light absorption effect. This improves the optical crosstalk problem between adjacent light-receiving sections 210, resulting in sharper and clearer boundaries between bright and dark areas in the ADB beam pattern. When a pixel in a certain area is turned off for anti-glare purposes, that area remains dark, preventing light leakage from neighboring pixels from illuminating areas that should be dark. This further enhances the anti-glare effect of the ADB beam pattern and improves the performance and reliability of the adaptive high beam module 10.

[0047] Furthermore, the groove 231 has the largest width at its opening, which allows for a certain distance between two adjacent light-incident parts 210, thereby further improving the optical crosstalk problem between two adjacent light-incident parts 210 and further enhancing the anti-glare effect of the ADB light pattern.

[0048] like Figures 2 to 4 , Figure 7 and Figure 8 As shown, in some embodiments, the light-incident portion 210 is connected to the edge of the groove 231 near the light-emitting portion 220. The light-incident portion 210 includes a first total reflection surface 212 and a second total reflection surface 213 disposed opposite to each other along a first direction. The two sub-light-incident portions 211 share the first total reflection surface 212 and the second total reflection surface 213. The distance between the first total reflection surface 212 and the second total reflection surface 213 gradually decreases along the direction from the bottom of the groove 231 to the opening of the groove 231.

[0049] Please refer to Figure 7 The light-entry part 210 can have a smooth transition between the edge of the light-exit part 220 and the groove edge of the groove 231, that is, there is no boss at the joint between the two, or the boss is small.

[0050] In this embodiment, the two sub-light-incident sections 211 of the light-incident section 210 share the first total reflection surface 212 and the second total reflection surface 213. The two sub-light-incident sections 211 of the light-incident section 210 are referred to as the first sub-light-incident section 211a and the second sub-light-incident section 211b, and the two light-emitting units 111 of the light-emitting group 110 are referred to as the first light-emitting unit 111a and the second light-emitting unit 111b.

[0051] When the light from the first light-emitting unit 111a is incident on the first sub-light-incident part 211a, the light undergoes total internal reflection between the first total internal reflection surface 212 and the second total internal reflection surface 213 of the first sub-light-incident part 211a along the first direction; when the light from the second light-emitting unit 111b is incident on the second sub-light-incident part 211b, the light undergoes total internal reflection between the first total internal reflection surface 212 and the second total internal reflection surface 213 of the second sub-light-incident part 211b along the first direction.

[0052] The first total reflection surface 212 and the second total reflection surface 213 are continuous planes, forming the boundary of the two sub-light-incident parts 211 of the same light-incident part 210 in the first direction.

[0053] This configuration, firstly, facilitates the fabrication of each light-incident section 210, reduces costs, and increases the production yield of the first lens 200. Secondly, it ensures that the two sub-light-incident sections 211 have the same boundary, achieving compactness of the light-incident sections 210 in the first direction and reducing the horizontal dimension of a single light-incident section 210. This allows for the arrangement of more light-emitting groups 110 within a limited space, thereby improving the horizontal resolution of the adaptive high-beam module 10 and enhancing the anti-glare effect.

[0054] Furthermore, such as Figure 8 As shown, the groove 231 is located between two adjacent light-incident sections 210, and the sidewall of the groove 231 can also form a total reflection surface. When the light from the light-emitting group 110 enters its respective light-incident section 210, total reflection occurs when the light is incident on the sidewall of the groove 231 along the first direction. This avoids light crosstalk between two adjacent light-incident sections 210, thereby further improving the anti-glare effect of the ADB beam pattern and enhancing the performance and reliability of the adaptive high beam module 10.

[0055] like Figure 2 As shown, in some embodiments, the two sub-light-incident sections 211 are a first sub-light-incident section 211a and a second sub-light-incident section 211b. The first sub-light-incident section 211a includes a first sub-light-incident surface 2111 and a third total reflection surface 214 and a fourth total reflection surface 215 connected to the first sub-light-incident surface 2111. The third total reflection surface 214 and the fourth total reflection surface 215 are arranged parallel to each other along the second direction. The second sub-light-incident section 211b includes a second sub-light-incident surface 2112 and a fifth total reflection surface 216 and a sixth total reflection surface 217 connected to the second sub-light-incident surface 2112. The fifth total reflection surface 216 and the sixth total reflection surface 217 are arranged parallel to each other along the second direction. The fourth total reflection surface 215 and the fifth total reflection surface 216 are connected to each other and arranged at an angle.

[0056] The first sub-incident surface 2111 and the second sub-incident surface 2112 are used to receive incident light from the two light-emitting units 111, respectively. The third total internal reflection surface 214 and the fourth total internal reflection surface 215 of the first sub-incident surface 211a are used to perform total internal reflection of the light from one of the light-emitting units 111 in a second direction, and the fifth total internal reflection surface 216 and the sixth total internal reflection surface 217 of the second sub-incident surface 211b are used to perform total internal reflection of the light from the other light-emitting unit 111 in a second direction. In this way, at least a portion of the two sub-incident surfaces 211 are separated from each other, providing independent optical channels for the two light-emitting units 111.

[0057] Furthermore, the fourth total reflection surface 215 and the fifth total reflection surface 216 are connected to each other and set at an angle. The junction of the fourth total reflection surface 215 and the fifth total reflection surface 216 is the initial overlapping position of the two sub-light incident parts 211.

[0058] Through the above design, firstly, in the initial stage of light incidence on the two light-emitting units 111, they have completely independent and non-interfering optical paths, preventing light interference and thus improving defects such as light loss and stray light. This helps improve the clarity and sharpness of the edges of the final emitted illumination sub-region, enhancing the performance and reliability of the adaptive high-beam module 10. Secondly, the light from the two light-emitting units 111 is fused before the light-emitting section 220 at the overlapping area of ​​the two sub-incident sections 211, forming a uniformly distributed, single pixel light spot, improving defects such as ghosting, double-peak light spots, and abnormal light spot shape caused by dual light sources. This helps improve the illumination uniformity and light pattern effect of each illumination sub-region.

[0059] like Figure 3 and Figure 4 As shown, in some embodiments, the light-emitting part 220 includes a light-emitting surface 221, which is a cylindrical surface, and the guideline of the cylindrical surface extends along a second direction.

[0060] The cylindrical surface can modulate the two light-emitting units 111 of each light-emitting group 110 in the second direction. In conjunction with the second lens 300, it precisely controls the light distribution and brightness / dark boundaries of the pixel light spot (illumination sub-region) in the second direction. Simultaneously, in the first direction, the light from the light-emitting group 110 is initially converged by the light-incident section 210, and the cylindrical surface does not interfere with the light path in the first direction. After exiting the light-emitting section 220, the second lens 300 completes the light distribution of each light-emitting group 110 in the first direction.

[0061] This design, firstly, improves the accuracy of ADB beam pattern control and enhances beam pattern quality. Secondly, the cylindrical structure is simple, which facilitates the manufacturing of the first lens 200 and reduces costs.

[0062] like Figure 1As shown, in some embodiments, the second lens 300 is a focal lens and a convex lens. Using a focal convex lens as a projection lens firstly improves the ease of manufacturing the second lens 300 and reduces costs. Secondly, a focal convex lens has good image quality, which also helps to improve the light pattern quality.

[0063] like Figure 9 As shown, in some embodiments, the second lens 300 is a Fresnel lens, the light-incident surface of the second lens 300 is a Fresnel structure, and the light-exit surface of the second lens 300 is a plane.

[0064] In this embodiment, a Fresnel lens is selected as the projection lens. This also helps to reduce the thickness of the second lens 300, thereby reducing its volume, which in turn helps to reduce costs and minimize shrinkage and other deviations during injection molding.

[0065] In some embodiments, along a third direction, the focal point of the second lens 300 is located between the side surface of the substrate 230 near the light-incident portion 210 and the light-emitting surface 221 of the light-emitting portion 220. For example, the focal point of the second lens 300 is located 1.5 mm from the light-emitting surface 221 of the light-emitting portion 220 near the light source assembly 100.

[0066] It is understandable that, because the ends of the two sub-incident light sections 211 near the light-emitting section 220 overlap, the light emitted by the two light-emitting units 111 of each light-emitting group 110 converges before reaching the light-emitting surface 221 of the first lens 200. In this embodiment, the focal point of the second lens 300 is located between the surface of the substrate 230 near the incident light section 210 and the light-emitting surface 221 of the light-emitting section 220, thereby allowing the focal point of the second lens 300 to be close to the point where the light from the two light-emitting units 111 merges. This is beneficial for improving image quality and sharpness, reducing aberrations, and thus improving the projection sharpness and brightness of the ADB beam pattern.

[0067] Secondly, embodiments of this application propose a vehicle headlight including the adaptive high beam module 10 described in the first aspect. This configuration is beneficial for improving the brightness of each lighting sub-region, thereby improving the brightness of the ADB beam pattern. Furthermore, it eliminates the need for an additional supplementary lighting module, simplifying the structure and reducing costs.

[0068] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. An adaptive high-beam module, characterized in that, include: The light source assembly includes a plurality of light-emitting groups arranged at intervals along a first direction, each of the light-emitting groups including two light-emitting units arranged at intervals along a second direction; A first lens is disposed on the light-emitting side of the light source assembly. The first lens includes a plurality of light-incident portions and a light-emitting portion opposite to the plurality of light-incident portions. The light-emitting group and the light-incident portions are arranged in a one-to-one correspondence. Each light-incident portion includes two sub-light-incident portions spaced apart along the second direction. Each light-emitting unit is opposite to one of the sub-light-incident portions. The second lens is disposed on the side of the first lens that is away from the light source assembly; The light emitted by each of the light-emitting groups is incident into the first lens through the light-incident part and exited into the second lens through the light-exiting part. The second lens receives the light emitted from the light-exiting part and projects it into an illumination sub-region. Multiple illumination sub-regions are spliced ​​together along the first direction to form an ADB light pattern. The first direction and the second direction are perpendicular.

2. The adaptive high beam module according to claim 1, characterized in that, The two sub-light-incident sections overlap each other at one end near the light-outcident section, and the two sub-light-incident sections separate from each other at one end near the light source assembly.

3. The adaptive high beam module according to claim 1, characterized in that, The first lens includes a substrate, and the plurality of light-incident portions and the light-outceasing portions are respectively disposed on opposite sides of the substrate in the thickness direction; The substrate has a groove on the side surface near the light-incident portion, and each groove is located between two adjacent light-incident portions. The width of the groove gradually increases along the direction from the bottom of the groove to the opening of the groove.

4. The adaptive high beam module according to claim 3, characterized in that, The root edge of the light-incident part is connected to the groove edge of the groove; The light-incident portion includes a first total reflection surface and a second total reflection surface arranged opposite to each other along the first direction. The two sub-light-incident surfaces share the first total reflection surface and the second total reflection surface. Along the direction from the bottom of the groove to the opening of the groove, the distance between the first total reflection surface and the second total reflection surface gradually decreases.

5. The adaptive high beam module according to claim 4, characterized in that, The two sub-light-incident sections are a first sub-light-incident section and a second sub-light-incident section, respectively; The first sub-light-incident section includes a first sub-light-incident surface and a third total reflection surface and a fourth total reflection surface connected to the first sub-light-incident surface, wherein the third total reflection surface and the fourth total reflection surface are arranged parallel to each other along the second direction; The second sub-light-incident section includes a second sub-light-incident surface and a fifth total reflection surface and a sixth total reflection surface connected to the second sub-light-incident surface, wherein the fifth total reflection surface and the sixth total reflection surface are arranged parallel to each other along the second direction; The fourth total reflection surface and the fifth total reflection surface are connected to each other and set at an angle.

6. The adaptive high beam module according to claim 1, characterized in that, The light-emitting part includes a light-emitting surface, which is a cylindrical surface, and the guideline of the cylindrical surface extends along the second direction.

7. The adaptive high beam module according to claim 1, characterized in that, The second lens is a focal lens and is a convex lens.

8. The adaptive high beam module according to claim 1, characterized in that, The second lens is a Fresnel lens, the light-incident surface of the second lens is a Fresnel structure, and the light-exit surface of the second lens is a plane.

9. The adaptive high beam module according to claim 7 or 8, characterized in that, The first lens includes a substrate, and the plurality of light-incident portions and the light-outceasing portions are respectively disposed on opposite sides of the substrate in the thickness direction; Along the third direction, the focal point of the second lens is located between the light-emitting surface of the light-emitting part and the side surface of the substrate near the light-incident part.

10. A vehicle light, characterized in that, Includes the adaptive high beam module as described in any one of claims 1-9.

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