Light guide for vehicle lamp, high beam lighting module and vehicle lamp

Abstract

The present application relates to vehicle lamp, disclose a kind of light guide body (1) for vehicle lamp, including light inlet portion (11) and light outlet portion (12), the first single orientation straightening surface (13) is formed with the light inlet portion (11), the second single orientation straightening surface (14) is formed with the light outlet portion (12), and the straightening orientation of the first single orientation straightening surface (13) and the straightening orientation of the second single orientation straightening surface (14) are perpendicular to each other.Light rays emitted by light source arranged at the light inlet portion (11) can be formed into a light spot with required shape with bright-dark boundary.The present application also discloses a high beam lighting module, comprising a plurality of light emitting chips (2), a circuit board (3), a heat sink (4) and a light guide body (1) for vehicle lamp, which can form a lighting light shape composed of a plurality of light spots with bright-dark boundary.In addition, the present application also discloses a vehicle lamp.

Description

Technical Field

[0001] This invention relates to vehicle lights, and more specifically, to a light conductor for vehicle lights. This invention also relates to a high beam lighting module and a vehicle light. Background Technology

[0002] Adaptive High Beam (ADB) uses dynamic control signals to create localized dark areas, preventing high beams from dazzling other drivers and posing a safety risk. At the same time, it provides as much illumination as possible for drivers of other vehicles, creating a better driving environment.

[0003] High-beam modules with adaptive high-beam functionality typically consist of multiple individually controllable light sources arranged in a matrix, combined with a primary optical unit and a secondary optical unit to achieve adjacent illumination spots corresponding to the number of light sources. Existing secondary optical units often have spherical incident and exit surfaces, resulting in illumination spots whose shape closely resembles the shape of the light source itself. This makes it difficult to create illumination spots with the desired specific shape and defined light-dark boundaries. The illumination pattern is usually formed by the intermingling of these illumination spots, making it difficult to create clearly defined dark areas with distinct illumination boundaries.

[0004] Some adaptive high-beam lighting modules add a cylindrical optical unit between the main optical unit and the primary optical unit to create a clearly defined, specifically shaped illumination dark area. This cylindrical optical unit controls the diffusion of the illumination spot in a direction perpendicular to the cylindrical axis, forming the desired illumination spot shape with clear light and dark boundaries. However, this design results in a more complex optical system structure, reduced luminous efficiency, and the optical performance of the high-beam lighting module is significantly affected by manufacturing errors in individual components. Furthermore, the product size increases accordingly, requiring higher assembly precision. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a light conductor for automotive lights, which can form the light emitted by the light-emitting chip into an illumination spot with a desired shape and a boundary between light and dark.

[0006] The technical problem to be solved by the present invention is to provide a high beam lighting module that can form an illumination pattern composed of multiple illumination spots with light and dark boundaries in a relatively simple structure.

[0007] Furthermore, the technical problem that this invention also aims to solve is to provide a vehicle lamp.

[0008] To address the aforementioned technical problems, the present invention provides a light conductor for vehicle lights, comprising a light-incident portion and a light-exit portion. The light-incident portion is formed with a first single-directional straightening surface, and the light-exit portion is formed with a second single-directional straightening surface. The straightening orientation of the first single-directional straightening surface is perpendicular to the straightening orientation of the second single-directional straightening surface.

[0009] Preferably, the alignment orientation of the first single-directional alignment surface is vertical, and the alignment orientation of the second single-directional alignment surface is horizontal. In this preferred embodiment, the light conductor for the vehicle lamp is first aligned vertically by the first single-directional alignment surface, and then aligned horizontally by the second single-directional alignment surface. After being aligned by the first and second single-directional alignment surfaces of the light conductor for the vehicle lamp, the incident light forms an illumination spot with bright and dark boundaries, and the illumination spot diffuses to different degrees in the vertical and horizontal directions.

[0010] Preferably, the first single-direction straightening surface is a parabolic cylindrical surface with a horizontal cylindrical axis. In this preferred technical solution, the parabolic cylindrical surface with a horizontal cylindrical axis can play a good single-direction straightening role in the vertical direction, and it is also relatively easy to process.

[0011] Furthermore, the light-incident portion is formed as a light-concentrating cup-shaped structure, and the light-incident end of the light-concentrating cup-shaped structure has the first single-directional straightening surface. In this preferred embodiment, the light-concentrating cup-shaped structure not only better receives and straightens incident light, resulting in high luminous efficiency, but also helps in the positioning between the light source and the light conductor for vehicle lamps, and can also reduce the weight of the light conductor for vehicle lamps.

[0012] Preferably, the first single-directional straightening surface is a horizontal Fresnel cylindrical surface. In this preferred technical solution, the horizontal Fresnel cylindrical surface is a curved surface with a cylindrical effect formed by the principle of Fresnel lenses, achieving the effect of a cylindrical surface while reducing the convexity of the first single-directional straightening surface, thus reducing the thickness and weight of the light conductor for the vehicle headlight.

[0013] Preferably, the second unidirectional straightening surface is a cylindrical surface with a vertical cylindrical axis. In this preferred embodiment, the cylindrical surface with a vertical cylindrical axis can provide unidirectional straightening in the horizontal direction, and its processing and imaging are relatively simple.

[0014] Preferably, the second single-direction straightening surface is a vertical Fresnel cylindrical surface. In this preferred technical solution, the vertical Fresnel cylindrical surface is a curved surface with a cylindrical surface effect that has a vertical cylindrical axis, formed by the principle of Fresnel lenses. While achieving the cylindrical surface effect with a vertical cylindrical axis, it also reduces the convexity of the second single-direction straightening surface, thereby reducing the thickness and weight of the light conductor used in the vehicle headlight.

[0015] Preferably, there are multiple first single-directional straightening surfaces, and these multiple first single-directional straightening surfaces are vertically arranged in the light-incident section. With this preferred technical solution, each first single-directional straightening surface can correspond to a set of light sources, forming an illumination pattern composed of light emitted from multiple sets of light sources.

[0016] The second aspect of the present invention provides a high beam lighting module, including a light-emitting chip, a circuit board, a heat sink, and a light conductor for vehicle lights provided in the first aspect of the present invention; there are multiple light-emitting chips, and the multiple light-emitting chips can be independently controlled to turn on and off, the multiple light-emitting chips are mounted on the circuit board, the circuit board is mounted on the heat sink, and the light conductor for vehicle lights is arranged in the light-emitting light path of the light-emitting chips, so that the light-emitting chips are located in the first single-directional alignment surface area.

[0017] Preferably, the plurality of light-emitting chips are horizontally arranged on the circuit board and are all located in the first single-directional alignment surface area. In this preferred embodiment, the light emitted by the horizontally arranged plurality of light-emitting chips is more easily formed into a plurality of horizontally arranged illumination spots with bright and dark boundaries under the action of the light conductor for vehicle lights, and the plurality of illumination spots are combined to form a high beam illumination pattern.

[0018] Preferably, the high beam lighting module uses the aforementioned light conductor for vehicle lights with multiple first single-directional alignment surfaces. Multiple light-emitting chips are arranged in multiple rows in an array on the circuit board. Each row of light-emitting chips is horizontally arranged on the circuit board, while each row is vertically aligned and horizontally offset by a certain distance. Each row of light-emitting chips is located within the focal line region of a first single-directional alignment surface. Through this preferred technical solution, the light emitted by each group of light-emitting chips can be collimated by the first single-directional alignment surface and refracted by the second single-directional alignment surface, forming an illumination area composed of multiple illumination spots with bright and dark boundaries. The illumination areas formed by each group of light-emitting chips combine to form a high beam lighting pattern composed of multiple arrayed illumination spots. By controlling individual light-emitting chips, a more accurate adaptive high beam lighting pattern can be formed within the control area.

[0019] Preferably, the high beam lighting module of the present invention further includes a lens, which is disposed in the light output path of the light conductor for the vehicle lamp to project the light emitted through the light conductor for the vehicle lamp to form an illumination beam pattern. In this preferred embodiment, the lens can perform secondary straightening and adjustment on the light emitted through the light conductor for the vehicle lamp, forming a clearer illumination beam pattern that meets design requirements. It can also reduce the straightening performance requirements of the single-directional straightening surface of the light conductor for the vehicle lamp, and reduce the volume of the light conductor for the vehicle lamp.

[0020] A third aspect of the present invention provides a vehicle lamp, the vehicle lamp including the high beam lighting module provided in the second aspect of the present invention.

[0021] Through the above technical solution, the light conductor for automotive lamps of the present invention provides a first single-direction straightening surface and a second single-direction straightening surface with mutually perpendicular straightening directions at the light-incident and light-exit sections, respectively. This enables the light emitted from the light source to be straightened to different degrees from two mutually perpendicular directions, forming illumination spots with different illumination ranges and bright-dark boundaries at the two mutually perpendicular directions. By independently setting the first and second single-direction straightening surfaces, the boundaries of the illumination spots at the two mutually perpendicular directions can be freely designed to form illumination spots of different shapes. This overcomes the shortcomings of existing light conductors for automotive lamps, which can only form light spots with bright-dark boundaries that are the same shape as the light source, or cannot form bright-dark boundaries at all, thus expanding the performance and application range of the light conductor for automotive lamps. The high beam lighting module of this invention forms an illumination pattern composed of multiple independently controllable light-emitting chips arranged on the first unidirectional straightening surface of the light conductor used in the vehicle headlight. This creates an illumination pattern with multiple illumination spots having clear boundaries between bright and dark areas. By individually controlling these illumination spots, an adaptive high beam lighting pattern with clear boundaries between the illuminated or dark areas can be formed. It has the advantages of simple structure and clear boundaries between dark areas. The vehicle headlight of this invention, by using the high beam lighting module of this invention, also possesses the above advantages.

[0022] Other technical features and effects of the present invention will be further described in the detailed embodiments below. Attached Figure Description

[0023] Figure 1 This is a side view of one embodiment of the light conductor for vehicle lights of the present invention;

[0024] Figure 2 yes Figure 1 A top view of the light conductor used in the vehicle headlights;

[0025] Figure 3 yes Figure 1 The rear view of the light conductor used in the vehicle headlights shown;

[0026] Figure 4 This is a side view of another embodiment of the light conductor for vehicle lights of the present invention;

[0027] Figure 5 yes Figure 4 A top view of the light conductor used in the vehicle headlights;

[0028] Figure 6 yes Figure 4 The rear view of the light conductor used in the vehicle headlights shown;

[0029] Figure 7 This is a side view of yet another embodiment of the light conductor for vehicle lights of the present invention;

[0030] Figure 8 yes Figure 7 A top view of the light conductor used in the vehicle headlights;

[0031] Figure 9 yes Figure 7 The rear view of the light conductor used in the vehicle headlights shown;

[0032] Figure 10 yes Figure 7 Enlarged view of part A in the middle;

[0033] Figure 11 This is a side view of yet another embodiment of the light conductor for vehicle lights of the present invention;

[0034] Figure 12 yes Figure 11 The front view of the light conductor used in the vehicle headlights shown;

[0035] Figure 13 yes Figure 12 Sectional view of the BB position;

[0036] Figure 14 yes Figure 13 Enlarged view of part C in the middle;

[0037] Figure 15 This is a front view of an embodiment of the high beam lighting module of the present invention;

[0038] Figure 16 yes Figure 15 The left view of the high beam lighting module shown;

[0039] Figure 17 yes Figure 15 A top view of the high beam lighting module shown;

[0040] Figure 18 yes Figure 15 A cross-sectional schematic diagram of the high beam lighting module shown;

[0041] Figure 19 yes Figure 15 The diagram shows the vertical optical path of the high beam lighting module.

[0042] Figure 20 yes Figure 15 The diagram shows the horizontal optical path of the high beam lighting module.

[0043] Figure 21 This is a schematic diagram of the optical path of another embodiment of the high beam lighting module of the present invention;

[0044] Figure 22 This is a schematic diagram of the optical path of another embodiment of the high beam lighting module of the present invention;

[0045] Figure 23 yes Figure 22 Enlarged view of part D in the middle;

[0046] Figure 24 This is a partial structural schematic diagram of another embodiment of the high beam lighting module of the present invention;

[0047] Figure 25 This is a schematic diagram of an illumination spot formed by the high beam illumination module of the present invention;

[0048] Figure 26 This is a schematic diagram of the lighting pattern formed by the high beam lighting module of the present invention;

[0049] Figure 27 This is a schematic diagram of an adaptive high beam pattern formed by the high beam lighting module of the present invention;

[0050] Figure 28 This is a schematic diagram of another lighting pattern formed by the high beam lighting module of the present invention;

[0051] Figure 29 This is a front view of yet another embodiment of the high beam lighting module of the present invention;

[0052] Figure 30 yes Figure 29 The left view of the high beam lighting module shown;

[0053] Figure 31 yes Figure 29 A top view of the high beam lighting module shown.

[0054] Explanation of reference numerals in the attached figures

[0055] 1. Light conductor for vehicle lights 11. Light-incident section

[0056] 12 Light exit part 13 The first single-axis alignment surface

[0057] 14 Second single-direction alignment plane 15 Parabolic cylinder

[0058] 16. Light inlet transition surface 2. Light-emitting chip

[0059] 3 Circuit board 4 Heat sink

[0060] 5 lenses Detailed Implementation

[0061] In this invention, unless otherwise stated, the directional terms such as "front," "rear," "up," "down," "horizontal," and "vertical" indicate the orientation or positional relationship based on the orientation or positional relationship of the vehicle lights after normal installation on the vehicle. The direction indicated by the directional term "front" is the normal driving direction of the vehicle; the direction indicated by the directional term "vertical" is the direction perpendicular to the horizontal plane. The description of the orientation or positional relationship of the light conductor and high beam lighting module and their components for the vehicle lights of this invention is consistent with their actual installation orientation in use.

[0062] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only for illustration and explanation of the present invention, and the scope of protection of the present invention is not limited to the specific embodiments described below.

[0063] like Figures 1-14As shown, one embodiment of the light conductor 1 for vehicle lights of the present invention includes a light-incident portion 11 and a light-emitting portion 12. A first unidirectional straightening surface 13 is formed on the light-incident portion 11, and a second unidirectional straightening surface 14 is formed on the light-emitting portion 12. The unidirectional straightening surface is generally a curved surface formed by a curve moving along a straight line. The curve, that is, the generatrix of the curved surface, can be a circular arc, an elliptical arc, a parabola, or a free curve, etc. The straight line of the curved movement is called the guide line of the curved surface; the plane formed by the line connecting the two endpoints of the curve moving along the straight line is called the base plane of the unidirectional straightening surface; the trajectory formed by the midpoint of the line connecting the two endpoints of the curve moving along the straight line is called the axis of the unidirectional straightening surface, also known as the cylindrical axis. When light shines on a single-azimuth straightening surface perpendicular to its base plane, the light rays on one azimuth line (the conductor azimuth of the single-azimuth straightening surface) of the base plane do not converge in any way, while the light rays on another azimuth line (the azimuth of the generatrix of the single-azimuth straightening surface) converge to the maximum extent. Normally, the azimuth line that does not converge is perpendicular to the azimuth line that converges to the maximum extent. The azimuth indicated by the azimuth line that converges to the maximum extent is called the straightening azimuth of the single-azimuth straightening surface. In this invention, "azimuth" refers to a set of parallel directions. The straightening azimuth of the first single-azimuth straightening surface 13 on the light conductor 1 for vehicle lamps can be set perpendicular to the straightening azimuth of the second single-azimuth straightening surface 14. Thus, when light passes through the first single-directional straightening surface 13, a straightening effect occurs in the straightening direction of the first single-directional straightening surface 13, and the illumination spot formed by the light diffuses in the straightening direction of the first single-directional straightening surface 13. When light passes through the second single-directional straightening surface 14, a straightening effect occurs in the straightening direction of the second single-directional straightening surface 14, and the illumination spot formed by the light diffuses in the straightening direction of the second single-directional straightening surface 14. Since the converging ability of the first single-directional straightening surface 13 and the second single-directional straightening surface 14 in their straightening directions are different, the diffusion angle of the illumination spot formed by the light in the straightening direction of the first single-directional straightening surface 13 is different from that in the straightening direction of the second single-directional straightening surface 14, forming illumination spots with different lengths and bright and dark boundaries in the straightening directions of the first and second single-directional straightening surfaces 13 and 14. By controlling the converging ability of the first single-direction straightening surface 13 and the second single-direction straightening surface 14 in their respective straightening directions, the diffusion angle of the illumination spot in two mutually perpendicular directions can be controlled, thereby controlling the shape of the illumination spot.

[0064] In some embodiments of the light conductor 1 for vehicle lights of the present invention, such as Figures 1-14As shown, the alignment direction of the first single-directional alignment surface 13 is vertical. When light passes through the first single-directional alignment surface 13, it forms an illumination spot with a bright and dark boundary in the vertical direction. The alignment direction of the second single-directional alignment surface 14 is horizontal. When light passes through the second single-directional alignment surface 14, it forms an illumination spot with a bright and dark boundary in the horizontal direction. In this way, after light passes through the light conductor 1 for vehicle lights of the present invention, it can form a rectangular light spot with a straight boundary.

[0065] As a specific embodiment of the light conductor 1 for vehicle lights of the present invention, such as Figures 4-6 As shown, the first single-directional straightening surface 13 is a parabolic cylindrical surface with a horizontal cylindrical axis. This parabolic cylindrical surface is formed by the movement of a parabolic quasi-parabola with a horizontal axis of symmetry on a vertical plane along a horizontal direction perpendicular to its axis of symmetry. A parabolic quasi-parabola is formed by adaptive adjustments to a parabola. The first single-directional straightening surface 13 with the shape of a parabolic cylindrical surface can straighten incident light rays in the vertical direction, with good straightening effect and relatively convenient processing. Straightening refers to the process by which diverging light rays, after being refracted by the curved surface, propagate in a direction that is relatively close to parallel.

[0066] As a specific embodiment of the light conductor 1 for vehicle lights of the present invention, such as Figure 1 and Figure 3 As shown, the light-incident section 11 is formed into a light-concentrating cup-shaped structure. This light-concentrating cup-shaped structure is a parabolic cylinder formed by the movement of a parabola with a horizontal axis of symmetry along a horizontal direction perpendicular to its axis of symmetry on a vertical plane. The upper and lower curved surfaces of the parabolic cylinder are formed into parabolic cylindrical surfaces 15, and the top of the parabolic cylinder, i.e., the light-incident end, forms a recessed light-incident opening. The bottom of the light-incident opening is formed into a first single-directional straightening surface 13, and a light-incident transition surface 16 is formed between the periphery of the first single-directional straightening surface 13 and the opening of the light-incident opening. (As shown...) Figure 19 As shown, when light enters from the light inlet, most of the light rays are incident on the first single-directional straightening surface 13, which straightens the light rays before directing them towards the light outlet 12. A small portion of the light rays are incident on the light inlet transition surface 16, refracted by the light inlet transition surface 16, and then incident on the parabolic cylindrical surface 15. After total internal reflection by the parabolic cylindrical surface 15, the reflected and straightened light rays illuminate the light outlet 12. The condenser cup structure allows the light conductor 1 for the vehicle lamp to receive more light emitted by the light source and facilitates the positioning of the first single-directional straightening surface 13 and the light source. It also eliminates unnecessary materials outside the light divergence path, reducing the weight of the light conductor 1 for the vehicle lamp.

[0067] As a specific embodiment of the light conductor 1 for vehicle lights of the present invention, such as Figures 7-10As shown, the first single-directional straightening surface 13 is a horizontal Fresnel cylindrical surface. The horizontal Fresnel cylindrical surface is a curved surface formed by the intersection of the vertical plane passing through the optical axis of the Fresnel lens and the surface of the Fresnel lens with multiple concentric circles, moving in a horizontal direction perpendicular to the optical axis of the Fresnel lens. The result of light refraction on the horizontal Fresnel cylindrical surface is equivalent to the result of refraction on a cylindrical surface with a horizontal cylindrical axis. In this way, the refraction effect of a cylindrical surface can be achieved with an approximately planar structure, reducing the volume and weight of the light conductor 1 for the vehicle lamp.

[0068] In some embodiments of the light conductor 1 for vehicle lights of the present invention, such as Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 7 and Figure 8 As shown, the second single-directional straightening surface 14 is a cylindrical surface with a vertical cylindrical axis. Similarly, the cylindrical second single-directional straightening surface 14 can form an extended lighting area with uniform illuminance in the horizontal direction, and also has the advantages of simple structure and convenient processing.

[0069] As a specific embodiment of the light conductor 1 for vehicle lights of the present invention, such as Figures 12-14 As shown, the second single-directional straightening surface 14 is a vertical Fresnel cylindrical surface. The vertical Fresnel cylindrical surface is a curved surface formed by the intersection of a horizontal plane passing through the optical axis of the Fresnel lens and the surface of the Fresnel lens with multiple concentric circles, moving in a vertical direction perpendicular to the optical axis of the Fresnel lens. The result of light refracting onto the vertical Fresnel cylindrical surface is equivalent to the result of light refracting onto a cylindrical surface with its axis vertically aligned.

[0070] In some embodiments of the light conductor 1 for vehicle lights of the present invention, such as Figure 1 , Figure 3 , Figure 4 , Figure 6 , Figure 9 and Figure 11 As shown, the light-receiving section 11 is provided with a plurality of first single-directional alignment surfaces 13, each of which is vertically arranged on the light-receiving section 11 to form a plurality of independent surfaces for receiving incoming light. The alignment orientation of each first single-directional alignment surface 13 is vertical.

[0071] One embodiment of the high beam lighting module of the present invention is as follows: Figures 15-24As shown, the system includes a light-emitting chip 2, a circuit board 3, a heat sink 4, and a light conductor 1 for vehicle lights according to any of the above embodiments. Multiple light-emitting chips 2 are available, and can be selected from LED chips or laser chips with square light-emitting boundaries that can be independently controlled to turn on and off. The light-emitting chips 2 are mounted on the circuit board 3 with their square light-emitting boundaries arranged horizontally or vertically, and the circuit board 3 supplies the power required for the light-emitting chips 2 to emit light. The circuit board 3 is mounted on the heat sink 4, which can transfer the heat generated by the light-emitting chips 2 to the heat sink 4 to reduce the temperature of the light-emitting chips 2 and prevent damage due to high temperature. The light conductor 1 for vehicle lights is located in front of the light-emitting surface of the light-emitting chips 2, and all light-emitting chips 2 are located in the region of the first single-directional straightening surface 13 of the light conductor 1 for vehicle lights. The straightening direction of the first single-directional straightening surface 13 is parallel to the vertical light-emitting boundary of the light-emitting chips 2. The light emitted by the light-emitting chips 2 is extended by the light conductor 1 for vehicle lights in both horizontal and vertical directions, forming a shape as shown in the diagram. Figure 25 The rectangular illumination spot shown has clear light and dark boundaries. Multiple light-emitting chips 2 emitting light simultaneously can create an illumination pattern like this. Figure 26 The illumination pattern is shown. By independently controlling each light-emitting chip 2, one or more of the light-emitting chips 2 can be turned off when necessary, forming an illumination pattern in the corresponding illumination area of ​​that light-emitting chip 2. Figure 27 The illumination dark area shown has a light-dark boundary, forming an illumination pattern with an illumination dark area that enables adaptive high beam function. Multiple light-emitting chips 2 can be placed in the same area of ​​the first single-directional alignment surface 13. Alternatively, the orientation of the base surfaces of different first single-directional alignment surfaces 13 can be set at a certain angle to the light-emitting surface of the corresponding light-emitting chip 2, so that the illumination spots formed by the light-emitting chips 2 in different areas of the first single-directional alignment surface 13 are arranged side-by-side. Since the light emitted by the light-emitting chip 2 only passes through the first single-directional alignment surface 13 and the second single-directional alignment surface 14 of the headlight light conductor 1 to form the illumination pattern, the light loss at the refraction surfaces is small, resulting in high illumination efficiency.

[0072] In some embodiments of the high beam lighting module of the present invention, such as Figure 17 , Figure 20As shown, multiple light-emitting chips 2 are horizontally arranged on the circuit board 3. All the horizontally arranged light-emitting chips 2 are located in the same area of ​​the first single-direction straightening surface 13. In a preferred embodiment, the first single-direction straightening surface 13 is a curved surface formed by moving a vertical arc as its generatrix in a direction perpendicular to the plane of the arc (horizontal direction). The first single-direction straightening surface 13 has a focal line in a horizontal direction, and the multiple light-emitting chips 2 are horizontally arranged near the focal line of the first single-direction straightening surface 13. Since the first single-direction straightening surface 13 is formed by the trajectory of a curve moving linearly in a horizontal direction, multiple light-emitting chips 2 can be arranged along this linear direction, and the light emitted by these multiple light-emitting chips 2, after refraction by the first single-direction straightening surface 13, forms the same light distribution. After further refraction by the second single-direction straightening surface 14, a pattern is formed... Figure 25 The illumination pattern shown consists of multiple rectangular illumination spots of similar shape. By independently controlling each light-emitting chip 2, one or more of the light-emitting chips 2 can be turned off when necessary, creating an illumination area corresponding to that light-emitting chip 2. Figure 27 The dark area shown has a light-dark boundary, forming a lighting pattern with a dark area that enables adaptive high beam functionality.

[0073] In some embodiments of the high beam lighting module of the present invention, such as Figure 24 As shown, multiple light-emitting chips 2 are arranged in an array of multiple rows on a circuit board 3, with each row of light-emitting chips 2 arranged horizontally on the circuit board 3. The number of light-emitting chips 2 in each row can be the same or can vary depending on the shape of the designed light pattern. Different rows of light-emitting chips 2 are arranged vertically on the circuit board 3. Different rows of light-emitting chips 2 can be arranged in the same vertical direction or can be arranged horizontally at a certain distance based on the vertical direction. Correspondingly, the light conductor 1 for the vehicle lamp adopts the light conductor 1 for the vehicle lamp with multiple first single-directional straightening surfaces 13 described above. Each first single-directional straightening surface 13 corresponds to a row of light-emitting chips 2, and the light-emitting chips 2 in each row are located near the focal line of the corresponding first single-directional straightening surface 13. The light conductor 1 for the vehicle lamp can form a rectangular illumination spot from the light emitted by each light-emitting chip 2 in the row. The illumination spots formed by each light-emitting chip 2 in the row are arranged adjacent to each other in the horizontal direction; the illumination spots formed by each row of light-emitting chips 2 are arranged adjacent to each other or partially overlapped in the vertical direction, forming an arrangement as shown in the figure. Figure 28The high beam illumination pattern shown is composed of multiple independent rectangular illumination spots. In one specific embodiment, a total of 20 square LED light-emitting chips 2 are disposed on the circuit board 3, with each chip having a side length of 2 mm. The 20 light-emitting chips 2 are arranged in 4 rows on the circuit board 3, with each row consisting of 5 horizontally arranged chips 2. The center distance between adjacent chips 2 in each row is 2 mm. The chips 2 in each row are arranged vertically on the circuit board 3, with a horizontal offset of 0.5 mm between adjacent rows. The light conductor 1 for the vehicle headlight has 4 first single-directional straightening surfaces 13 and 1 second single-directional straightening surface 14. Each row of chips 2 corresponds to one first single-directional straightening surface 13. The light emitted by each row of chips 2 enters from different first single-directional straightening surfaces 13 and exits through a second single-directional straightening surface 14. Because a large number of light-emitting chips 2 are used, the number of light spots that make up the lighting pattern is also large. By independently controlling each light-emitting chip 2, the position of the dark area formed in the lighting pattern is more precise. At the same time, turning off one light-emitting chip 2 has a smaller impact on the brightness of the lighting pattern, resulting in better dark area effect and lighting effect of the adaptive high beam.

[0074] In some embodiments of the high beam lighting module of the present invention, such as Figures 29-31 As shown, the high beam lighting module of the present invention is also provided with a lens 5. The lens 5 is disposed in the light output path of the light conductor 1 for the vehicle headlight, and can further converge and project the light emitted through the light conductor 1 to form the desired lighting pattern. The lens 5 can be a convex lens with a concave incident surface, a plano-convex lens, or a biconvex lens, or a convex lens with cylindrical refraction effect in a certain position. The lens 5 can be formed as a single convex lens structure, or it can be formed as a lens structure composed of convex lenses with the same number of convex lenses as the first single-position straightening surfaces 13 of the light conductor 1 for the vehicle headlight. The lens 5 can project or perform secondary straightening and adjustment on the lighting pattern formed by the light-emitting chip 2 through the light conductor 1 for the vehicle headlight, thereby optimizing the formed lighting pattern.

[0075] Through the above technical solution, the light conductor for vehicle lights of the present invention, by setting a first single-direction straightening surface in the light-incident section and a second single-direction straightening surface in the light-outcident section, can straighten the light emitted by the light source in two mutually perpendicular straightening directions. This results in different diffusion angles of the illumination spot formed by the light emitted by the light source in the two mutually perpendicular directions, forming an illumination spot with a specific shape and a bright-dark boundary. The high beam lighting module of the present invention uses multiple light-emitting chips that can be independently controlled to turn on and off, and the light conductor for vehicle lights of the present invention. It can combine the illumination spots formed by multiple light-emitting chips to form a high beam lighting pattern composed of multiple independent illumination spots with bright-dark boundaries. By independently controlling each light-emitting chip, an illumination dark area with a bright-dark boundary can be formed at a specified position of the illumination pattern, forming an adaptive high beam lighting function. Because the formed dark area has a bright-dark boundary, there is no stray light within the dark area, and the illumination brightness outside the dark area is high. Therefore, the shielding effect on oncoming targets is good, the illumination effect on the surrounding area of ​​the target is good, and the safety of use is higher. Furthermore, since the light conductor for vehicle lights of the present invention achieves alignment functions in two mutually perpendicular directions through a single component, higher manufacturing precision and higher component positioning accuracy can be achieved. This ensures the stability of the position of the illumination spot formed by the light-emitting chip, resulting in a more stable illumination beam pattern.

[0076] The vehicle headlights provided by this invention, by employing the high beam lighting module of this invention, also possess the aforementioned beneficial effects of the high beam lighting module of this invention.

[0077] In the description of this invention, references to terms such as "one embodiment," "some embodiments," and "a specific implementation" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this invention, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0078] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings; however, the present invention is not limited thereto. Within the scope of the inventive concept, various simple modifications can be made to the technical solutions of the present invention, including combinations of various specific technical features in any suitable manner. To avoid unnecessary repetition, the present invention will not describe the various possible combinations separately. However, these simple modifications and combinations should also be considered as the content disclosed in the present invention and are all within the protection scope of the present invention.

Claims

1. A high-beam lighting module, comprising a plurality of light-emitting chips (2) and a light conductor (1) for vehicle lights, wherein the light conductor (1) for vehicle lights comprises a light-incident portion (11) and a light-emitting portion (12), characterized in that, The light-inlet section (11) is formed as a light-concentrating cup-shaped structure. The light-inlet end of the light-concentrating cup-shaped structure has a plurality of first single-directional straightening surfaces (13). The light-outlet section (12) has a second single-directional straightening surface (14). The straightening directions of the first single-directional straightening surface (13) and the second single-directional straightening surface (14) are perpendicular to each other. By controlling the diffusion angles of the first single-directional straightening surface (13) and the second single-directional straightening surface (14) in their respective straightening directions, the diffusion angles of the illumination spot in the two mutually perpendicular directions can be controlled, thereby controlling the shape of the illumination spot. By controlling the multiple illumination spots individually, an adaptive high-beam illumination pattern with clear boundaries of the illumination area or the dark area can be formed. The light-inlet section (11) forms a groove-shaped light inlet. On the alignment of the first single-axis alignment surface (13), a light inlet transition surface (16) is formed between the two sides of the first single-axis alignment surface (13) and the opening of the light inlet. Parabolic cylindrical surfaces (15) are formed on the two curved surfaces of the light inlet. Part of the light received by the light inlet (11) is refracted by the light inlet transition surface (16) and then directed to the parabolic cylindrical surface (15), and then reflected by the parabolic cylindrical surface (15) to the light outlet (12). Each of the first single-axis straightening surfaces (13) has a plurality of light-emitting chips (2) arranged along the focal line direction of the corresponding first single-axis straightening surface (13) near the focal line.

2. The high beam lighting module according to claim 1, characterized in that, The calibration orientation of the first single-orientation calibration surface (13) is vertical, and the calibration orientation of the second single-orientation calibration surface (14) is horizontal.

3. The high beam lighting module according to claim 2, characterized in that, The first single-direction straightening surface (13) is a parabolic cylindrical surface with a horizontal cylindrical axis.

4. The high beam lighting module according to claim 2, characterized in that, The first single-direction straightening surface (13) is a horizontal Fresnel cylindrical surface.

5. The high beam lighting module according to claim 2, characterized in that, The second single-direction straightening surface (14) is a cylindrical surface with a vertical cylindrical axis.

6. The high beam lighting module according to claim 2, characterized in that, The second single-direction straightening surface (14) is a vertical Fresnel cylindrical surface.

7. The high beam lighting module according to any one of claims 2 to 6, characterized in that, Multiple first single-directional alignment surfaces (13) are arranged vertically in the light-incident section (11).

8. The high beam lighting module according to claim 1, characterized in that, It also includes a circuit board (3) and a heat sink (4); multiple light-emitting chips (2) can be independently controlled to turn on and off, multiple light-emitting chips (2) are mounted on the circuit board (3), the circuit board (3) is mounted on the heat sink (4), and the light conductor (1) for the vehicle light is set in the light-emitting light path of the light-emitting chip (2), so that the light-emitting chip (2) is located in the area of ​​the first single-directional straight surface (13).

9. The high beam lighting module according to claim 8, characterized in that, Multiple light-emitting chips (2) are arranged horizontally on the circuit board (3) and are all located in the area of ​​the first single-directional straightening surface (13).

10. The high beam lighting module according to claim 8, characterized in that, The high beam lighting module uses the light conductor (1) for vehicle lights according to claim 8. Multiple light-emitting chips (2) are arranged in an array on the circuit board (3). Each row of light-emitting chips (2) is arranged horizontally on the circuit board (3). Each row of light-emitting chips (2) is arranged vertically and forms a certain distance of horizontal offset. Each row of light-emitting chips (2) is located in the focal line area of ​​a first single-directional straightening surface (13).

11. The high beam lighting module according to any one of claims 8 to 10, characterized in that, It also includes a lens (5), which is disposed on the light output path of the light conductor (1) for the vehicle lamp, so as to project the light emitted through the light conductor (1) for the vehicle lamp to form an illumination pattern.

12. A vehicle light, characterized in that, Includes the high beam lighting module according to any one of claims 1 to 11.

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