Vehicle lamp

Abstract

The present application discloses a vehicle lamp, comprising: a light source module; a reflective cup, the light source module being arranged inside a reflective surface of the reflective cup, and the reflective surface being used for reflecting and converging light beams emitted by the light source module, and emitting the converged light beam; and a lens arranged on a light exit path of the converged light beam, the included angle between a plane where a light incident surface of the lens is located and the central axis of the lens being less than 90 degrees, and a plane where the edge of a light exit surface of the lens is located being perpendicular to the central axis of the lens. The lens is used for refracting a light beam incident from the light incident surface and emitting a target light beam formed after refraction from the light exit surface, wherein the target light beam forms at a distance an illumination spot having a cut-off line. In this way, by using a lens having an inclined light incident surface to refract a converged light beam from a reflective cup, chromatic aberration can be prevented from occurring in a target light beam formed after refraction, thereby eliminating or weakening a color fringing at a cut-off line; and in addition, the lens is easy to implement due to a simple design, reducing the preparation cost of the lens.

Description

Car lights Technical Field

[0001] This application relates to the field of automotive lighting technology, and more particularly to an automotive lighting system. Background Technology

[0002] In related technologies, the beam emitted by automotive headlights forms a light spot with a cutoff line at a distance. This cutoff line prevents glare for oncoming drivers or pedestrians. Furthermore, traditional headlights use a single-lens projection optical system, resulting in high contrast at the cutoff line. However, because the optical materials used to form the lens have different refractive indices for different wavelengths of light, noticeable bands of colored light can easily appear at the cutoff line due to color separation, leading to a poor driving lighting experience for the driver.

[0003] Utility Model Content

[0004] This application provides a vehicle lamp, including: a light source module for emitting a light beam; a reflector, wherein the light source module is disposed inside the reflective surface of the reflector, the reflective surface being used to reflect and converge the light beam emitted by the light source module, and emit the converged light beam; a lens, disposed in the outgoing light path of the converged light beam, the lens including an incident light surface and an exit light surface, the angle between the plane containing the incident light surface and the central axis of the lens is a set angle, the plane containing the edge of the exit light surface is perpendicular to the central axis of the lens, and the set angle is less than 90 degrees; the lens is used to refract the converged light beam incident from the incident light surface, and emit a target light beam formed after refraction from the exit light surface, the target light beam forming an illumination spot with a bright and dark cutoff line at a distance.

[0005] Optionally, the converged light beam includes multiple colored light beams, and the target light beam is formed by superimposing the multiple colored light beams; the lens is used to refract the multiple colored light beams so that after the emission directions of the blue light beam and the yellow light beam in the multiple colored light beams are adjusted, when the target blue light beam and the target yellow light beam projected to the target position are emitted from the light-emitting surface, the angle between the emission directions of the target blue light beam and the target yellow light beam is the target angle, the target angle is positively correlated with the set angle, and the distance between the target position and the light-dark cutoff line is less than the target distance.

[0006] Optionally, the lens has a first refractive index for the blue light beam and a second refractive index for the yellow light beam, wherein the first refractive index is greater than the second refractive index.

[0007] Optionally, the central axis of the lens is horizontally offset upwards by a set distance relative to the optical axis of the reflector.

[0008] Optionally, the vehicle headlight further includes a heat dissipation module and a lens bracket; the heat dissipation module is provided with the light source module and the reflector; the lens bracket is integrally formed with the heat dissipation module, and the lens bracket is used to fix the lens.

[0009] Optionally, the vehicle headlight further includes a cut-off plate, which is disposed on the lens bracket and located at the light outlet of the reflector; the cut-off plate is used to block part of the converged light beam that falls on the cut-off plate, so that the emitted target light beam forms the illumination spot with the cut-off line.

[0010] Optionally, the vehicle headlight further includes a first reflector and a second reflector; the first reflector is disposed on the reflector cup and located at the light outlet of the reflector cup, and the first reflector is used to reflect the light beam emitted by the light source module to the second reflector; the second reflector is disposed on the lens bracket and is disposed adjacent to the light cut-off line plate, and the second reflector is used to receive and reflect the light beam emitted by the first reflector to the lens, so that the illumination spot contains a light spot of a predetermined shape above the light cut-off line.

[0011] Optionally, the cross-section of the reflector cup is a semi-parabolic surface of revolution.

[0012] Optionally, the lens is a circular convex lens or a square convex lens.

[0013] Optionally, the set angle is greater than or equal to 85 degrees.

[0014] In the vehicle headlight provided in this application embodiment, by setting the angle between the plane of the light-incident surface of the lens and the central axis of the lens to a set angle, after the light beam emitted from the light source module is reflected and converged by the reflector, when the converged light beam is refracted by the lens with the tilted light-incident surface, color separation in the target beam formed after refraction can be avoided. Thus, when the target beam forms an illumination spot with a cutoff line at a distance, the color band at the cutoff line can be eliminated or weakened, improving the driver's driving lighting experience. Furthermore, the lens with the tilted light-incident surface is simple to design and easy to realize in a mold, allowing the lens to be mass-produced through injection molding, reducing the manufacturing cost of the lens. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 shows a schematic diagram of the structure of a vehicle lamp provided in an embodiment of this application.

[0017] Figure 2 shows a schematic diagram of the structure of a lens provided in one embodiment of this application.

[0018] Figure 3 shows a side view of a vehicle lamp provided in another embodiment of this application.

[0019] Figure 4 shows a top view of the headlights provided in Figure 3.

[0020] Figure 5 shows the spectral distribution of a light source module provided in one embodiment of this application.

[0021] Figure 6 shows a schematic diagram of the refractive index of a lens provided in an embodiment of this application as a function of wavelength.

[0022] Figure 7 shows a schematic diagram of the emission directions of the blue light beam and the yellow light beam in a lens provided in an embodiment of this application.

[0023] Figure 8 shows a schematic diagram of the structure of a vehicle lamp provided in another embodiment of this application. Detailed Implementation

[0024] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are merely some embodiments of the present application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present application without creative effort are within the scope of protection of the present application.

[0025] The terms "first," "second," etc., used in this application are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or apparatuses.

[0026] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0027] Please refer to Figure 1, which shows a structural schematic diagram of a vehicle lamp 1 provided in an embodiment of this application. The vehicle lamp 1 provided in this application will be described in detail below with reference to Figure 1. As shown in Figure 1, the vehicle lamp 1 of this application includes a light source module 10, a reflector 20, and a lens 30.

[0028] In this embodiment, the light source module 10 is used to emit a light beam. The light source module 10 may include multiple light-emitting diodes or lasers arranged in an array, which is not limited here. Furthermore, the light source module 10 is disposed inside the reflective surface of the reflector cup 20. The reflective surface of the reflector cup 20 is used to reflect and converge the light beam emitted by the light source module 10, and then emit the converged light beam. The cross-section of the reflector cup 20 is a semi-parabolic surface of revolution.

[0029] Optionally, a lens 30 is also provided in the output light path of the beam after reflection and convergence by the reflector cup 20, and the lens 30 is located at the light outlet of the reflector cup 20. The lens 30 is used to refract the converged beam and output the target beam formed after refraction. The target beam forms an illumination spot with a bright and dark cutoff line at a distance. The lens 30 can be a circular convex lens or a square convex lens, and the lens 30 can also be designed as a convex lens of other shapes according to market demand, without limitation.

[0030] Specifically, as shown in Figure 2, which illustrates a schematic diagram of the lens 30 provided in an embodiment of this application, the lens 30 includes an incident light surface 31 and an exiting light surface 32. The angle between the plane containing the incident light surface 31 (i.e., plane 1) and the central axis of the lens 30 is a predetermined angle, denoted as α. The plane containing the edge of the exiting light surface 32 (i.e., plane 2) is perpendicular to the central axis of the lens 30, wherein the predetermined angle is less than 90 degrees. After the light beam, reflected and converged by the reflector, is projected onto the incident light surface 31 of the lens 30, the lens 30 refracts the converged light beam incident from the incident light surface 31 and exits at the exiting light surface 32, forming the target light beam after refraction.

[0031] Optionally, when lens 30 refracts the beam of light reflected and converged by reflector cup 20, since the converged beam includes multiple colors of light, the target beam formed after refraction by lens 30 is formed by the superposition of multiple colors of light. Lens 30 can be made of polymethyl methacrylate (PMMA), a polymer compound formed by the polymerization of methyl methacrylate, also known as gelatin glass or optical acrylic. PMMA has advantages such as good transparency, chemical stability, mechanical properties, weather resistance, ease of dyeing, ease of processing, and beautiful appearance.

[0032] It should be noted that for the same medium, its refractive index varies with the wavelength of light; the shorter the wavelength of light, the greater the refractive index of the medium. Since the wavelengths of the various colored light beams in the converged beam are different, the refractive index of the lens 30 differs for light beams with different wavelengths when refracting them. The lens 30 can be a circular or square convex lens, with a flat incident surface and a convex exit surface. Most of the converged beam enters the lower half of the lens 30 and is refracted upwards. That is, when the various colored light beams are incident on the incident surface of the lens 30 in the same direction, the exit direction of the beam at the exit surface has a horizontal upward deflection relative to the incident direction.

[0033] Optionally, since the refractive index of lens 30 is different for different colored light beams, the refractive index of lens 30 is smaller for colored light beams with larger wavelengths. When light is emitted from the light-emitting surface of lens 30, the horizontal upward deflection angle of the emission direction relative to the incident direction is smaller for colored light beams with larger wavelengths. As a result, when the refracted colored light beams emitted from the light-emitting surface are superimposed to form the target beam, and the target beam forms an illumination spot with a bright and dark cutoff line at a distance, the horizontal upward deflection angle of the colored light beams with smaller wavelengths is larger. At the bright and dark cutoff line, a noticeable light band of smaller wavelengths is likely to appear, resulting in a poor driving lighting experience.

[0034] In the traditional headlight 1, the light-incident surface of the lens 30 is typically perpendicular to its central axis. To reduce or eliminate the colored light band at the cutoff line, a micro-optical structure is added to the curved light-exiting surface of the lens 30. However, this complicates the design of the lens 30 and makes mold manufacturing difficult. In this application, the light-incident surface of the lens 30 is designed to be tilted clockwise, so that the angle between the plane containing the light-incident surface and the central axis of the lens 30 is a predetermined angle, α, which is less than 90 degrees, while the light-exiting surface remains unchanged. Thus, when multiple colored light beams are incident on the incident surface of lens 30 in the same incident direction, the normal of the inclined incident surface deflects clockwise relative to the vertical incident surface. This reduces the incident angle of the multiple colored light beams at the incident surface. Consequently, after refraction by lens 30, the horizontal upward deflection angle of each colored light beam at the exit surface relative to the incident direction decreases. Furthermore, the reduction in horizontal upward deflection angle is greater for colored light beams with shorter wavelengths, thereby eliminating or weakening the colored light band at the cutoff line. This allows for better mixing of multiple colored lights to form white light, improving the driver's driving lighting experience. Simultaneously, this application only sets the incident surface of lens 30 as an inclined plane, making the design of lens 30 simple and easy to implement in a mold. This allows lens 30 to be mass-produced through injection molding, reducing the manufacturing cost of lens 30.

[0035] In this embodiment, by setting the angle between the plane containing the light-incident surface of the lens 30 and the central axis of the lens 30 to a set angle, after the light beam emitted from the light source module 10 is reflected and converged by the reflector 20, the converged light beam is refracted by the lens 30 with the inclined light-incident surface. This avoids the separation of color light in the target beam formed after refraction, allowing multiple colors of light to be better mixed to form white light. Thus, when the target beam forms an illumination spot with a cutoff line at a distance, the color light band at the cutoff line can be eliminated or weakened, improving the driver's driving lighting experience. Furthermore, the design of the lens 30 with the inclined light-incident surface is simple and easy to realize in a mold, reducing the manufacturing cost of the lens 30.

[0036] Please refer to Figures 3 and 4. Figure 3 shows a side view of a vehicle lamp provided in another embodiment of this application, and Figure 4 shows a top view of the vehicle lamp provided in Figure 3. In this embodiment, the vehicle lamp includes a light source module 10, a reflector 20, and a lens 30.

[0037] In this embodiment, the reflector cup 20 reflects and converges the light beam emitted from the light source module 10 before it is emitted. The lens 30 is used to refract the converged light beam incident from the incident light surface 31. Since the converged light beam includes multiple colored light beams, the target light beam formed after the converged light beam is refracted by the lens 30 is formed by the superposition of multiple colored light beams, and the target light beam forms an illumination spot with a bright and dark cutoff line at a distance.

[0038] Optionally, as shown in Figure 5, which illustrates the spectral distribution of a light source module provided in an embodiment of this application, the light source module is a white light-emitting diode (LED).

[0039] It should be noted that the spectral distribution of a white light-emitting diode (LED) represents the curve of radiant power versus wavelength. This distribution determines not only the color of the emitted light, but also its luminous flux and color rendering index. Since the visible light spectrum spans from 380 nm to 760 nm, encompassing the seven colors of light perceptible to the human eye, but each of these seven colors is a monochromatic light, there is no white light in the visible light spectrum. White light is a composite light synthesized from multiple monochromatic lights. For a white LED to emit white light, its spectral distribution should cover the entire visible light spectrum. However, manufacturing an LED with this performance is difficult under current technological conditions. Based on research on visible light, the white light visible to the human eye requires at least a mixture of two types of light, either a mixture of blue and yellow light, or a mixture of blue, yellow, and red light.

[0040] In this embodiment, the spectral distribution of the light source module is characterized by high intensity of blue light (wavelength around 430nm) and yellow light (wavelength around 580nm), and the mixture of multiple colors of light forms the white light beam emitted by the light source module.

[0041] Optionally, after the reflector cup 20 reflects the light beam emitted from the light source module 10, the reflected and converged light beam is a white light beam. Since the wavelengths of the various colored light beams in the converged white light beam are different, the refractive index of the lens 30 is different for the colored light beams with different wavelengths when refracting the various colored light beams. As shown in Figure 6, Figure 6 shows a schematic diagram of the refractive index of the lens provided in an embodiment of this application as a function of wavelength.

[0042] In this embodiment, the lens has a first refractive index for blue light beams and a second refractive index for yellow light beams, with the first refractive index being greater than the second refractive index.

[0043] Alternatively, when using a single-lens projection optical system in a vehicle headlight, the contrast between the light and dark cutoff lines is high, making it easier to place the color light with the maximum luminous intensity near the light and dark cutoff lines, thereby increasing the illumination distance of the headlight.

[0044] In this embodiment, the blue and yellow light beams have the greatest intensity in the converged white light beam. Since the refractive index of the lens 30 for the blue light beam is greater than that for the yellow light beam, most of the beam in the converged white light beam enters the lower half of the lens 30 and is refracted upward by the lens 30. When the blue and yellow light beams incident on the light-incident surface 31 of the lens 30 in the same incident direction are refracted by the lens 30, the beam exiting direction at the light-outceasing surface 32 has a horizontal upward deflection angle relative to the incident direction.

[0045] Based on this, since the refractive index of lens 30 for blue light beams is greater than that for yellow light beams, when the blue light beam exits from the light-emitting surface 32 of lens 30, the horizontal upward deflection angle of the blue light beam relative to the yellow light beam will be larger. As a result, when the white light beam formed by the mixture of blue light beam and yellow light beam after refraction by lens 30 forms an illumination spot with a bright and dark cutoff line at a distance, due to the larger horizontal upward deflection angle of the blue light beam, a distinct blue light band is likely to appear at the bright and dark cutoff line.

[0046] In this embodiment, the light-incident surface 31 of the lens 30 is tilted in a clockwise direction, such that the angle between the plane of the light-incident surface 31 and the central axis of the lens 30 is a set angle, which is α and α is less than 90 degrees, while the light-exit surface 32 remains unchanged.

[0047] Specifically, when lens 30 refracts the multi-colored light beams that form a white light beam, the exit direction of the multi-colored light beams is adjusted. When the incident surface 31 of lens 30 is tilted, since the multi-colored light beams that form the white light beam mainly include blue light beams and yellow light beams, the incident angle of the white light beam at the incident surface 31 is reduced. As a result, after the lens 30 refracts the white light beam, the horizontal upward deflection angle of the exit direction of the white light beam at the exit surface 32 relative to the incident direction is reduced.

[0048] Optionally, as shown in FIG7, FIG7 illustrates a schematic diagram of the emission directions of the blue light beam and the yellow light beam in the lens 30 provided in an embodiment of the present application.

[0049] In this embodiment, the angle between the plane containing the light-incident surface 31 of the lens 30 and the central axis of the lens 30 is a set angle. When the set angle is α, the emission directions of the blue light beam and the yellow light beam are adjusted. When the target blue light beam and the target yellow light beam, which are to be projected to the target position, are emitted from the light-exiting surface 32, the angle between their emission directions is the target angle, which is β. That is, when the light-incident surface 31 of the lens 30 is tilted, when the blue light beam is emitted from the light-exiting surface 32, the reduction in the horizontal upward deflection angle of its emission direction relative to the incident direction is greater than the reduction in the deflection angle of the yellow light beam. At this time, when the target blue light beam and the target yellow light beam, which are to be projected to the target position, are emitted from the light-exiting surface 32, the angle between their emission directions is the target angle. The target angle is positively correlated with the set angle, and the distance between the target position and the cutoff line is less than the target distance.

[0050] Based on this, after the light-incident surface 31 is tilted, the blue light beam emitted from the light-exiting surface 32 is closer to the yellow light beam in terms of emission direction. As a result, when the blue light beam and the yellow light beam are mixed to form a white light beam with a light cutoff line at a distance after being refracted by the lens 30, the blue light band at the light cutoff line is eliminated or weakened. This allows the blue light beam and the yellow light beam to mix better to form a white light beam, thus improving the driver's driving lighting experience.

[0051] In some implementations, by designing the size of the set angle, for example, setting the set angle to be greater than or equal to 85 degrees and less than 90 degrees, the blue light band at the cutoff line can be weakened or eliminated when the target beam emitted from the lens 30 forms an illumination spot with a cutoff line at a distance. Furthermore, the target angle is positively correlated with the set angle; that is, the larger the tilt angle of the incident surface 31, the smaller the angle between the plane containing the incident surface 31 and the central axis of the lens 30 (set angle α), and the smaller the angle between the emission directions of the target blue light beam and the target yellow light beam (target angle β), resulting in a better blue light band elimination effect.

[0052] Furthermore, when the incident surface 31 of the lens 30 is tilted, the incident angle of the white light beam, mainly composed of a mixture of blue and yellow light beams, at the incident surface 31 decreases. After the lens 30 refracts the white light beam, the horizontal upward deflection angle of the white light beam at the exit surface 32 relative to the incident direction decreases. This causes the illumination spot to shift horizontally downwards as a whole when forming an illumination spot with a cutoff line at a distance. In this application, the central axis of the lens 30 is offset horizontally upwards by a set distance relative to the optical axis of the reflector 20, thereby ensuring that the illumination spot can maintain its original illumination height even when the incident surface 31 is tilted, thus ensuring the driver's driving lighting experience. For example, when the angle between the plane where the incident light surface 31 is located and the central axis of the lens 30 is about 96.5° (i.e., the tilt angle is 3.5°), the tilted incident light surface may cause the entire illumination spot to deflect downward by about 1°. Therefore, the lens 30 can be moved horizontally upward by 0.45mm to compensate for the downward deflection of the illumination spot. The amount of movement mainly depends on the focal length of the lens 30.

[0053] In this embodiment, since the refractive index of the lens 30 for blue light beams is greater than that for yellow light beams, by setting the angle between the plane containing the light-incident surface 31 of the lens 30 and the central axis of the lens 30 to a set angle, when the blue light beam exits from the light-out surface 32, the reduction in the horizontal upward deflection angle of its exit direction relative to the incident direction is greater than the reduction in the deflection angle of the yellow light beam. Thus, when the white light beam formed by the mixture of the blue light beam and the yellow light beam after refraction by the lens 30 forms an illumination spot with a bright and dark cutoff line at a distance, the blue light band at the bright and dark cutoff line is eliminated or weakened, allowing the blue light beam and the yellow light beam to mix better to form a white light beam, improving the driver's driving lighting experience. Furthermore, the design of the lens 30 with an inclined plane light-incident surface 31 is simple and easy to realize in a mold, reducing the manufacturing cost of the lens 30.

[0054] Please refer to Figure 8, which shows a schematic diagram of the structure of a vehicle lamp provided in another embodiment of this application. In this application, the vehicle lamp includes a light source module 10, a reflector 20, and a lens 30.

[0055] In this embodiment, after the light source module 10, which is located inside the reflective surface of the reflector cup 20, emits a light beam, the reflector cup 20 reflects and converges the light beam before it is emitted and reaches the light-incident surface of the lens 30. The lens 30 is located in the light path of the vehicle lamp. The lens 30 is used to refract the converged light beam incident from the light-incident surface and emit the refracted target light beam at the light-out surface. The target light beam forms an illumination spot with a bright and dark cutoff line at a distance.

[0056] Optionally, the headlight also includes a heat dissipation module 40 and a lens bracket 50. The heat dissipation module 40 houses the aforementioned light source module 10 and reflector 20. Since the light source module 10 generates a significant amount of heat during beam emission, and the reflector 20, as the component in the headlight that directly contacts the light source module 10, absorbs a large amount of this heat, the heat dissipation module 40 efficiently cools the light source module 10 and reflector 20, reducing their temperature during use. The lens bracket 50 is used to fix the lens 30 and is integrally formed with the heat dissipation module 40, thereby increasing the heat dissipation area of ​​the light source module 10.

[0057] In this embodiment, the integrated design of the lens bracket 50 and the heat dissipation module 40 increases the heat dissipation area of ​​the light source module 10, resulting in good heat dissipation. This allows the heat generated when the light source module 10 emits a beam to be dissipated quickly, thereby slowing down the temperature rise rate of the light source module 10 and the reflector cup 20 when the light source module 10 emits a beam, and reducing the brightness decay rate of the light beam emitted by the light source module 10.

[0058] It's important to note that car headlights include high beams and low beams. Low beams have a shorter effective illumination distance, while high beams have a longer effective illumination distance. Both are used interchangeably to illuminate the road ahead. High beams, with their higher angle and longer range, improve visibility and expand the field of view; low beams, with their lower angle and shorter range, do not dazzle oncoming drivers. When using high beams at night, oncoming drivers will be unable to see the road clearly due to the intense light and will be unable to judge the exact position of other vehicles, increasing the likelihood of accidents. Therefore, the headlight beam must not only illuminate the road ahead at night but also prevent glare. Based on this, a distinct dividing line with significant changes in brightness is incorporated into the illumination spot formed by the beam, called the low beam cutoff line. This ensures that only the portion of the beam below the cutoff line has high brightness, improving driver safety at night.

[0059] Optionally, the headlight also includes a cut-off plate 60, which is mounted on the lens bracket 50 and located at the light outlet of the reflector 20. The cut-off plate 60 blocks a portion of the light beam emitted from the reflector 20 that falls onto it, allowing the remaining unblocked beam to enter through the incident surface of the lens 30. After refraction, the target beam emitted from the light outlet of the lens 30 forms a low-beam illumination spot with a clear cut-off line on the ground. The appropriate cut-off line height prevents glare for oncoming drivers or pedestrians during headlight use and allows the driver to see a greater distance ahead, improving nighttime driving safety.

[0060] Furthermore, the headlight also includes a first reflector 70 and a second reflector 80. The first reflector 70 and the second reflector 80 reflect the light beam emitted from the light source module 10 to generate a light spot of a predetermined shape above the cutoff line. The first reflector 70 is mounted on the reflector cup 20 and located at the light outlet of the reflector cup 20. The first reflector 70 reflects the light beam emitted from the light source module 10 to the second reflector 80. The second reflector 80 is mounted on the lens bracket 50 and is adjacent to the cutoff line plate 60. The second reflector 80 receives and reflects the light beam emitted from the first reflector 70 to the lens 30, so that the target light beam emitted from the lens 30 forms an illumination spot of a predetermined shape above the cutoff line at a distance.

[0061] Optionally, when the headlights are in low beam mode, the beam emitted from the second reflector 80, after passing through the lens 30, can illuminate a considerable distance in front of the vehicle; that is, the beam emitted from the second reflector 80 serves as a road sign illumination beam. The light spot formed by the road sign illumination beam after passing through the lens 30 can be projected onto road signs and related directional signs on both sides of the road, enabling the driver to obtain relevant road sign information.

[0062] In this embodiment, by setting a first reflector 70 and a second reflector 80 in the headlight, the illumination spot formed by the beam emitted by the headlight can include a spot of a set shape for road sign illumination above the light-dark cutoff line, thus meeting the needs of nighttime use of the vehicle.

[0063] In this embodiment, the headlight includes a cutoff plate 60 for shaping the emitted light beam into an illumination spot with a cutoff line, ensuring high brightness only below the cutoff line, thus improving driver safety at night. The headlight also includes a first reflector 70 and a second reflector 80, so that the illumination spot includes a light spot of a predetermined shape above the cutoff line, i.e., a road sign illumination spot, enabling the driver to obtain relevant road sign information and further meeting the driver's low-beam illumination needs at night.

[0064] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A vehicle light, characterized in that, The vehicle lights include: The light source module is used to emit the light beam; A reflector cup, wherein the light source module is disposed inside the reflective surface of the reflector cup, and the reflective surface is used to reflect and converge the light beam emitted by the light source module, and then emit the converged light beam. A lens is disposed on the outgoing light path of the converged light beam. The lens includes an incident surface and an exiting surface. The angle between the plane containing the incident surface and the central axis of the lens is a set angle. The plane containing the edge of the exiting surface is perpendicular to the central axis of the lens. The set angle is less than 90 degrees. The lens is used to refract the converged light beam incident from the incident surface and to emit the target light beam formed by the refraction at the exit surface. The target light beam forms an illumination spot with a bright and dark cutoff line at a distance.

2. The vehicle light according to claim 1, characterized in that, The converged light beam includes multiple colored light beams, and the target light beam is formed by superimposing the multiple colored light beams; The lens is used to refract the multi-color light beams so that the emission directions of the blue light beam and the yellow light beam among the multi-color light beams are adjusted. When the target blue light beam and the target yellow light beam projected to the target position are emitted from the light-emitting surface, the angle between the emission directions of the target blue light beam and the target yellow light beam is the target angle. The target angle is positively correlated with the set angle. The distance between the target position and the light-dark cutoff line is less than the target distance.

3. The vehicle light according to claim 2, characterized in that, The lens has a first refractive index for the blue light beam and a second refractive index for the yellow light beam, wherein the first refractive index is greater than the second refractive index.

4. The vehicle light according to claim 1, characterized in that, The central axis of the lens is offset horizontally upward by a set distance relative to the optical axis of the reflector.

5. The vehicle light according to claim 1, characterized in that, The headlights also include a heat dissipation module and a lens bracket; The heat dissipation module is equipped with the light source module and the reflector. The lens bracket is integrally formed with the heat dissipation module, and the lens bracket is used to fix the lens.

6. The vehicle light according to claim 5, characterized in that, The vehicle headlight also includes a cut-off line plate, which is disposed on the lens bracket and located at the light outlet of the reflector. The cutoff plate is used to block a portion of the converged beam that falls on the cutoff plate, so that the emitted target beam forms the illumination spot with the cutoff line.

7. The vehicle light according to claim 6, characterized in that, The headlights also include a first reflector and a second reflector; The first reflector is disposed on the reflector cup and located at the light outlet of the reflector cup. The first reflector is used to reflect the light beam emitted by the light source module to the second reflector. The second reflector is disposed on the lens bracket and is disposed adjacent to the light-dark cutoff plate. The second reflector is used to receive and reflect the light beam emitted from the first reflector to the lens, so that the illumination spot contains a light spot of a predetermined shape above the light-dark cutoff line.

8. The vehicle lamp according to any one of claims 1 to 7, characterized in that, The cross-section of the reflector cup is a semi-parabolic surface of revolution.

9. The vehicle lamp according to any one of claims 1 to 7, characterized in that, The lens is a circular convex lens or a square convex lens.

10. The vehicle lamp according to any one of claims 1 to 7, characterized in that, The set angle is greater than or equal to 85 degrees.

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