Automobile lamp

Abstract

The present invention relates to the technical field of automobile lighting, and in particular to an automobile lamp, comprising a heat dissipation substrate, a floodlight source and a spotlight source which are arranged on the upper surface of the heat dissipation substrate, a cut-off mechanism used for achieving switching of a high beam function and a low beam function, and a light emitting lens. The light emitting lens is provided with a first lens part used for emitting light of the floodlight source and a second lens part used for emitting light of the spotlight source; the width of the light emitted by the first lens part is larger than that of the light emitted by the second lens part; the brightness of the light emitted by the first lens part is lower than that of the light emitted by the second lens part; and the automobile lamp further comprises a heat dissipation structure used for performing active heat dissipation and / or passive heat dissipation on the automobile lamp. According to the present invention, the floodlight source and the spotlight source are both arranged on the upper surface of the heat dissipation substrate, heat conducting channels of the two light sources do not coincide, heat dissipation of the two light sources is facilitated, the light emitting efficiency is good, the brightness is high, and the heat dissipation effect of the whole lamp is good.

Description

A car headlight Technical Field

[0001] The present invention relates to the technical field of automobile lighting, and in particular to an automobile lamp. Background Art

[0002] Car headlights are categorized into two types: low beam and high beam. Low beam is primarily used for close-range, wide-area illumination in the direction of travel, typically illuminating about 30 to 40 meters. It's suitable for nighttime driving or low visibility conditions. Its low beam angle and short range allow for clear identification of objects ahead. High beam, on the other hand, is typically used on unlit roads, such as highways and suburban areas. Its light is parallel or nearly parallel, offering greater brightness and a range of about 80 to 120 meters. High beam increases line of sight, thereby expanding the field of vision, and is particularly effective on dark or other low-visibility roads.

[0003] Existing automotive headlights typically have their low-beam and high-beam lights mounted on the same heat sink, located above and below it. To maximize light output, the heat sink must be as thin as possible. However, this results in the low-beam and high-beam light sources being located very close together, with their projections on the substrate overlapping significantly. This design causes their heat conduction channels to essentially overlap, resulting in poor heat dissipation. Furthermore, existing automotive headlight designs result in poor heat circulation within the headlight, resulting in poor heat dissipation and shortening the lamp's service life.

[0004] Summary of the Invention

[0005] Based on this, the present invention aims to overcome at least one defect of the prior art and provide an automobile lamp, which has good light output efficiency, high brightness, good heat dissipation effect of the light source, and good heat dissipation effect of the entire lamp.

[0006] The technical solution is as follows:

[0007] A car lamp comprises a heat dissipation substrate, a floodlight source and a spotlight source arranged on the upper surface of the heat dissipation substrate, a light-cutting mechanism for switching between high and low beam functions, and a light output lens, wherein the light output lens is provided with a first lens portion for emitting light from the floodlight source and a second lens portion for emitting light from the spotlight source, the width of the light emitted through the first lens portion is greater than the width of the light emitted through the second lens portion, the brightness of the light emitted through the first lens portion is lower than the brightness of the light emitted through the second lens portion, and the first lens portion and the second lens portion are arranged along the width direction of the car lamp; and further comprises a heat dissipation structure for actively and / or passively dissipating heat for the car lamp.

[0008] Preferably, the floodlight source includes a first LED light-emitting body and a first light-receiving component for collecting light from the first LED light-emitting body, and the spotlight source includes a second LED light-emitting body and a second light-receiving component for collecting light from the second LED light-emitting body. The collection efficiency of the first light-receiving component for the first LED light-emitting body is not less than 80%, and the collection efficiency of the second light-receiving component for the second LED light-emitting body is not less than 80%.

[0009] Preferably, the first light receiving member is a first reflective cup, which covers the first LED light-emitting body and is symmetrical with respect to the first LED light-emitting body; the second light receiving member is a second reflective cup, which covers the second LED light-emitting body and is symmetrical with respect to the second LED light-emitting body; and the size of the first reflective cup is larger than that of the second reflective cup.

[0010] Preferably, the light cutting mechanism includes a cut-off line baffle and a driving member for driving the cut-off line baffle to change its position, the cut-off line baffle includes a first light cutting piece corresponding to the floodlight source and a second light cutting piece corresponding to the spotlight source, the light-emitting surface of the first LED light-emitting body and the second LED light-emitting body is not higher than the vertex of the first light cutting piece and the second light cutting piece, and the first light cutting piece and the second light cutting piece can both cut the light into a low beam light type.

[0011] Preferably, the cut-off line baffle is an asymmetric special-shaped structure, and in a direction parallel to the width of the vehicle lamp, the length of the first light-cutting piece is greater than the length of the second light-cutting piece.

[0012] Preferably, the first light cutting piece includes a first arc piece and a second arc piece, the second light cutting piece includes a third arc piece and a fourth arc piece, the width of the first arc piece is greater than that of the second arc piece, the width of the third arc piece is greater than that of the fourth arc piece, the width of the first arc piece and the third arc piece are the same, the width of the second arc piece and the fourth arc piece are the same, the curvature of the first arc piece, the second arc piece, the third arc piece and the fourth arc piece are the same; the first arc piece is close to the fourth arc piece or the two are connected, or the second arc piece is close to the third arc piece or the two are connected; the first arc piece and the second arc piece are integrally formed, and / or the third arc piece and the fourth arc piece are integrally formed, and / or the first light cutting piece and the second light cutting piece are integrally formed.

[0013] Preferably, the distance between the first LED light-emitting body and the light-emitting lens is smaller than the distance between the second LED light-emitting body and the light-emitting lens.

[0014] Preferably, the distance between the optical center of the first LED light emitting body and the optical axis of the first lens portion is 0-4 mm, and the distance between the optical center of the second LED light emitting body and the optical axis of the second lens portion is 0-4 mm.

[0015] Preferably, the heat dissipation structure includes a fan, which is arranged at the tail of the automobile lamp or the bottom of the automobile lamp. The tail of the automobile lamp is the side away from the light-emitting lens, and the bottom of the automobile lamp is the side away from the upper surface of the heat dissipation substrate.

[0016] Preferably, the first LED light-emitting body is installed on the first light source copper plate, and the second LED light-emitting body is installed on the second light source copper plate; the first light source copper plate and the second light source copper plate are both installed on the upper surface of the heat dissipation substrate; the heat dissipation structure also includes a concentrated flood light source heat dissipation component, and the concentrated flood light source heat dissipation component is in contact with the upper surface of the first light source copper plate and the second light source copper plate.

[0017] Further preferably, the concentrated floodlight source heat dissipation assembly is a heat pipe assembly, which includes a heat pipe and a connector, and the connector is provided with a groove for accommodating at least a portion of the heat pipe; the first light source copper plate and the second light source copper plate are arranged below the connector and in contact with the connector and / or the heat pipe.

[0018] The focused floodlight heat dissipation assembly also includes heat dissipation fins connected to the heat pipe. The fan is arranged at the tail of the automobile headlight. The heat dissipation fins are arranged close to the fan and are located between the fan and the first light source copper plate and / or between the fan and the second light source copper plate.

[0019] Preferably, the automobile lamp further includes a fill light source, and the light output lens is provided with a third lens portion for emitting the fill light source.

[0020] Preferably, there is one third lens portion, the third lens portion is located at the top of the light-emitting lens, and the first lens portion and the second lens portion are symmetrically arranged along the third lens portion; or there are two third lens portions, the two third lens portions are respectively located above the first lens portion and the second lens portion; or the number of the third lens portions is three or more.

[0021] Preferably, the first lens portion and the second lens portion are of the same size, and the equivalent diameters of the first lens portion and the second lens portion are 40 to 50 mm; and / or the equivalent diameter of the third lens portion is 40 to 50 mm, and the number of third lens portions is 2.

[0022] Preferably, taking a plane parallel to the surface of the heat dissipation substrate and passing through the vertices of the first lens portion and the second lens portion as a reference plane, the area of ​​the curved surface of the first lens portion and the second lens portion below the reference plane is larger than the area of ​​the curved surface above the reference plane.

[0023] Preferably, the heat dissipation structure also includes a heat dissipation fan inclined to the upper surface of the heat dissipation substrate and located above the floodlight source and the spotlight source, and a heat sink arranged above the floodlight source and the spotlight source, the heat dissipation fan is arranged in the heat sink, the fill light source is arranged on the heat sink, and the fill light source is an LED light source and / or a laser light source.

[0024] Preferably, the fill light source is a laser light source, and the number of the third lens portions is 2. The laser light source includes: a laser that emits a laser beam; a spectrometer element arranged on the path of the laser beam for dividing the laser beam into a first laser and a second laser; a first wavelength conversion element arranged on the path of the first laser, the first wavelength conversion element being used to at least partially convert the first laser into a converted light; a second wavelength conversion element arranged on the path of the second laser, the second wavelength conversion element being used to at least partially convert the second laser into a converted light; and a first lens for collecting light emitted after being acted upon by the first wavelength conversion element and a second lens for collecting light emitted after being acted upon by the second wavelength conversion element; the first lens and one of the third lens portions are coaxially arranged, and the second lens and the other third lens portion are coaxially arranged.

[0025] A car lamp includes a heat dissipation substrate, a floodlight source and a spotlight source arranged above the heat dissipation substrate, a light-cutting mechanism for switching between high and low beam functions, and a light-emitting lens. The light-emitting lens is provided with a first lens portion for emitting light from the floodlight source and a second lens portion for emitting light from the spotlight source. The distance between the optical center of the floodlight source and the optical axis of the first lens portion is 0 to 5 mm, the distance between the optical center of the spotlight source and the optical axis of the second lens portion is 0 to 5 mm, and the line connecting the vertices of the first lens portion and the second lens portion is parallel to the upper surface of the heat dissipation substrate.

[0026] Preferably, the ratio of the equivalent diameter of the first lens portion and / or the equivalent diameter of the second lens portion to the diameter of the light incident surface of the light output lens is (0.55-0.7):1.

[0027] Compared with the prior art, the beneficial effects of the present invention are: the floodlight source and the spotlight source are both arranged on the upper surface of the heat dissipation substrate, the heat conduction channels of the two light sources do not overlap, the thickness of the heat dissipation substrate can be increased, which is beneficial to the heat dissipation of the two light sources, the floodlight source emits light in a wide angle range through the first lens portion, and the spotlight source emits light with high brightness through the second lens portion, most of the light from the floodlight source and the spotlight source can be fully utilized, the light-cutting mechanism blocks very little light from the floodlight source and the spotlight source, the obtained light irradiation range is wide, the brightness is high, and the entire automobile lamp has high light output efficiency, and a heat dissipation structure for active heat dissipation and / or passive heat dissipation is provided for the automobile lamp, which can make the heat in the lamp circulate, the heat dissipation effect of the entire lamp is good, and the service life is long. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] FIG1 is an exploded view of an automobile lamp according to embodiment 1 of the present invention.

[0029] FIG2 is a front view of the automobile lamp according to embodiment 1 of the present invention.

[0030] FIG3 is a cross-sectional view taken along the AA angle in FIG2 .

[0031] FIG4 is a partial exploded view of the automobile lamp according to embodiment 1 of the present invention.

[0032] FIG5 is a perspective view of the automobile lamp according to embodiment 1 of the present invention.

[0033] FIG6 is a schematic diagram of heat conduction of a light source of an automobile lamp according to embodiment 1 of the present invention.

[0034] FIG7 is a schematic structural diagram of a heat dissipation assembly of a focused flood light source in Example 1 of the present invention.

[0035] FIG8 is another structural schematic diagram of the heat dissipation assembly of the focused flood light source in Example 1 of the present invention.

[0036] FIG9 is a schematic diagram of the assembly of the heat pipe assembly, the first light source copper plate, and the second light source copper plate according to Example 1 of the present invention.

[0037] FIG10 is an exploded view of the heat pipe assembly, the first light source copper plate, and the second light source copper plate according to Example 1 of the present invention.

[0038] FIG11 is a schematic structural diagram of the heat pipe assembly according to embodiment 1 of the present invention from another perspective.

[0039] FIG12 is an exploded view of FIG11 according to embodiment 1 of the present invention.

[0040] FIG13 is a schematic structural diagram of the light-cutting mechanism according to Example 1 of the present invention, wherein the circle indicated by A is an asymmetrically designed special-shaped structure.

[0041] FIG14 is a schematic diagram of the light-emitting lens structure according to embodiment 1 of the present invention.

[0042] FIG15 is a configuration scheme of LED light emitters and reflective cups in the existing OEM market.

[0043] FIG16 is a partial exploded view of the automobile lamp according to embodiment 2 of the present invention.

[0044] FIG17 is a simplified structural diagram of a car lamp according to embodiment 3 of the present invention.

[0045] FIG18 is a simplified structural diagram of the light output lens.

[0046] Explanation of the accompanying symbols: 1. Heat dissipation substrate; 21. First reflective cup; 22. First LED light-emitting body; 31. Second reflective cup; 32. Second LED light-emitting body; 4. Light-cutting mechanism; 41. Solenoid valve; 42. Cut-off line baffle; 421. First light-cutting piece; 4211. First arc piece; 4212. Second arc piece; 422. Second light-cutting piece; 4221. Third arc piece; 4222. Fourth arc piece; 423. Vertex; 5. Light-emitting lens; 51. First lens portion; 511. Lower curved surface of the first lens portion; 512. Upper curved surface of the first lens portion; 52. Second lens portion; 521. Lower curved surface of the second lens portion; 522. Upper curved surface of the second lens portion; 53. Third lens portion; 61. First light source copper plate; 62. Second light source copper plate; 7. Cooling fan; 8 , focusing flood light source heat dissipation assembly; 81, heat pipe assembly; 811, heat pipe; 812, connector; 8121, groove; 8122, bump; 82, heat dissipation fin; 9, heat sink; 10, fill light source; 11, fan; 12, fan cover; 13, drive board; 14, lower cover; 15, lens bracket; 16, mounting bracket; 171, first light-emitting body; 172, second light-emitting body; 173, third light-emitting body; 181, first cup body; 182, second cup body; 183, third cup body; 101, laser; 102, spectrometer; 103, first wavelength conversion element; 104, second wavelength conversion element; 105, first lens; 106, second lens; 107, third lens; 108, diffuser; 109, reflector. DETAILED DESCRIPTION

[0047] The accompanying drawings are for illustrative purposes only and are not to be construed as limiting the present invention. To better illustrate the following embodiments, some components in the accompanying drawings may be omitted, enlarged, or reduced in size, and do not represent actual product dimensions. Those skilled in the art will appreciate that some well-known structures and their descriptions may be omitted from the accompanying drawings.

[0048] Example 1

[0049] As shown in Figures 1 to 6, this embodiment provides an automobile lamp, including a heat dissipation substrate 1, a floodlight source and a spotlight source provided on the upper surface of the heat dissipation substrate 1, a light cutting mechanism 4 for realizing high and low beam function switching, and a light output lens 5, wherein the light output lens 5 is provided with a first lens portion 51 for emitting light from the floodlight source and a second lens portion 52 for emitting light from the spotlight source, the width of the light emitted through the first lens portion 51 is greater than the width of the light emitted through the second lens portion 52, the brightness of the light emitted through the first lens portion 51 is lower than the brightness of the light emitted through the second lens portion 52, and the first lens portion 51 and the second lens portion 52 are arranged along the width direction of the automobile lamp; and further includes a heat dissipation structure for actively and / or passively dissipating heat for the automobile lamp.

[0050] To make the description clearer, the length direction, width direction, and height direction of the automobile headlight are marked, as shown in Figure 1. The direction parallel to the optical axis of the light-emitting lens 5 (the optical axis of the light-emitting lens 5 is the line passing through the center point and focus of the light-emitting lens 5) is the length direction, represented by x; the direction parallel to the surface of the heat dissipation substrate 1 and perpendicular to the length direction is the width direction, represented by y; the direction perpendicular to x and y is the height direction, represented by z.

[0051] The brightness of the emitted light mentioned in this application refers to the illuminance of the emitted light, and the width of the emitted light refers to the distance between the left and right sides of the light emitting area when the light is emitted forward.

[0052] When a low beam effect is to be achieved, the light cutting mechanism 4 is located in the light path to block the light and achieve a low beam lighting effect with a clear cut-off line; when a high beam effect is to be achieved, the light cutting mechanism 4 is moved out of the light path of the floodlight source and the spotlight source to achieve a high beam lighting effect.

[0053] Compared to the existing method of separately arranging the low beam and high beam on the same heat dissipation substrate and located on the upper and lower sides of the heat dissipation substrate, in this embodiment, the floodlight source and the spotlight source are both mounted on the upper surface of the heat dissipation substrate 1. This allows the heat dissipation substrate to be made thicker, which is beneficial for the heat dissipation of the two light sources. In existing headlights, the low beam light source is emitted through the lower half of the light-emitting lens, and the high beam light source is emitted through the upper half of the light-emitting lens. When low beam lighting is implemented, most of the light from the high beam source is blocked, and the brightness of the headlight is relatively low when low beam lighting is implemented. However, the technical solution of the present application not only has a high utilization rate of the floodlight source, but also a very high utilization rate of the spotlight source when low beam lighting is implemented. Only a small portion of the light from both the floodlight source and the spotlight source is blocked by the light-cutting mechanism 4 (when low beam lighting is implemented, the function of the light-cutting mechanism 4 is only to block a small portion of the stray light from the floodlight source and the spotlight source to obtain a low beam light type with a clear cutoff line). The floodlight source emits light over a wide angle range through the first lens portion 51, and the spotlight source emits light of high brightness through the second lens portion 52, resulting in a wide illumination range and high brightness. Furthermore, since the floodlight source and the spotlight source emit light separately through the first lens portion 51 and the second lens portion 52, the light emitted by the floodlight source and the spotlight source after being acted upon by the light-emitting lens 5 can be symmetrical along the optical axis of the light-emitting lens 5, avoiding eccentric or asymmetrical light emission, thereby ensuring the light emission effect. Furthermore, since the first lens portion 51 and the second lens portion 52 are both disposed on the light-emitting lens 5, the dimensions of the first lens portion 51 and the second lens portion 52 are smaller than the dimensions of the entire light-emitting lens 5. This allows the floodlight source and the spotlight source to be designed closer to the light-emitting lens 5, thereby shortening the length of the entire automobile lamp or, with the same length, reserving more space for heat dissipation design. The heat dissipation structure configured as the automobile lamp for active and / or passive heat dissipation can circulate heat within the lamp, resulting in excellent heat dissipation and a long service life.

[0054] Furthermore, the floodlight source includes a first LED light-emitting body 22 and a first light-receiving member for collecting light from the first LED light-emitting body 22, and the spotlight source includes a second LED light-emitting body 32 and a second light-receiving member for collecting light from the second LED light-emitting body. The first light-receiving member has a collection efficiency of not less than 80% for the first LED light-emitting body 22, and the second light-receiving member has a collection efficiency of not less than 80% for the second LED light-emitting body 32. Most of the existing aftermarket headlights have the high and low beam light sources respectively arranged on the lower and upper surfaces of the heat dissipation substrate. A small number of headlights have the light-emitting surfaces of both the high and low beam light sources facing upward, but the mounting surface of the high beam light source is lower than the mounting surface of the low beam light source. The former has always had problems with heat dissipation and light extraction efficiency due to the thickness of the heat dissipation substrate. The latter has low light extraction efficiency of the high beam light source because the high beam reflector cannot block the low beam light. Some headlights in the original equipment market use multiple light sources mounted on the top surface of a heat sink substrate as low-beam sources. However, the light-collecting structure has low efficiency in collecting the light from the emitters, resulting in significant light loss and low headlight brightness. Furthermore, the emitters must typically be located in three or more locations. Figure 15 shows one existing configuration of LED emitters and reflectors for the original equipment market. The substrate includes a first emitter 171, a second emitter 172, and a third emitter 173. Above these three emitters is an integrally molded three-cup reflector. The three-cup reflector includes a first cup 181, a second cup 182, and a third cup 183. The first cup 181 is positioned above the first emitter 171, the second cup 182 is positioned above the second emitter 172, and the third cup 183 is positioned above the third emitter 173. The reflective cups in this structure have relatively low light collection efficiency. The first cup 181 collects less than 70% of the light from the first light source 171, the second cup 182 collects less than 70% of the light from the second light source 172, and the third cup 183 collects less than 70% of the light from the third light source 173. The entire three-cup structure's light-emitting panel collects less than 70% of the effective light from all three light sources. Furthermore, this approach requires a separate high-beam light source beneath the baseplate to effectively meet both low-beam and high-beam lighting requirements. In this technical solution, the collection efficiency of both the first and second light-receiving elements is no less than 80%, and can even reach no less than 90%, resulting in high collection efficiency.

[0055] More specifically, as shown in FIG1 , the first light-collecting member is a first reflector 21, which covers a first LED 22 and is symmetrically arranged relative to the first LED 22. The second light-collecting member is a second reflector 31, which covers a second LED 22 and is symmetrically arranged relative to the second LED 32. The first reflector 21 is larger than the second reflector 31. As previously mentioned, some existing front-end market devices employ multiple light sources disposed on the upper surface of a heat dissipation substrate. However, these light-collecting structures have low light collection efficiency for the light sources, resulting in significant light loss and low headlight brightness. Furthermore, the light sources typically must be disposed in three or more locations. In contrast, in this embodiment, the light sources are disposed in two locations, reducing the number of light sources and generating heat. Furthermore, the reflectors, which are symmetrically arranged relative to the LEDs, achieve high light collection efficiency for the LEDs. Furthermore, the first reflective cup 21 includes an upper plane and a side curved surface with an opening facing the light-emitting lens 51. The side curved surface is connected to the heat dissipation substrate 1 except for the opening position. The reflective cup of this structure is a standard reflective cup on the market, also known as an ellipsoidal reflective cup. Since no light leaks except at the opening position, the collection efficiency of the LED light-emitting body is very high, which can be as high as 90%. The shape of the second reflective cup 31 is similar to it, and it is also an ellipsoidal reflective cup. Compared with the design of Figure 15, the light emitted by the LED light-emitting body can be well collected. Moreover, the size of the first reflective cup that collects the low beam light is designed to be larger than the size of the second reflective cup that collects the high beam light, which can achieve simultaneous focusing and flooding, making the light irradiation range wider, the brightness higher, and reducing the amount of light loss.

[0056] As shown in FIG13 , the light-cutting mechanism 4 includes a cutoff baffle 42 and a driver for changing the position of the cutoff baffle 42. In this embodiment, the driver is a solenoid valve 41. The cutoff baffle 42 includes a first light-cutting plate 421 corresponding to the floodlight source and a second light-cutting plate 422 corresponding to the spotlight source. The light-emitting surfaces of the first and second LED illuminators 22 and 32 are no higher than the vertices 423 of the first and second light-cutting plates 421 and 422, and both the first and second light-cutting plates 421 and 422 are capable of cutting light into a low-beam pattern. By setting the light-emitting surfaces of the first and second LED illuminators 22 and 32 no higher than the vertices 423 of the first and second light-cutting plates 421 and 422, only a very small portion of the light from the spotlight source and the floodlight source is blocked by the light-cutting mechanism 4, and light can essentially be emitted from the entire light-emitting surface of the first and second lens portions 51 and 52, resulting in high light-extraction efficiency. The apex 423 of the first light cutting piece 421 and the second light cutting piece 422 of the present invention refers to the highest point at the transition between the light cutting pieces.

[0057] In addition, the cutoff baffle 42 has an asymmetric, special-shaped structure. In a direction parallel to the width of the headlight, the length of the first light-cutting plate 421 is greater than the length of the second light-cutting plate 422. Further preferably, the weight difference between the first light-cutting plate 421 and the second light-cutting plate 422 is less than 10%. As shown in Figure 13, the cutoff baffle 42 has an asymmetric, special-shaped structure and needs to be connected to the electromagnet rod of the solenoid valve 41. The connection area is shown in the circular area A in Figure 13. This embodiment adopts an asymmetric, special-shaped structure design. On the one hand, it can reserve space for the connection part, on the other hand, it can ensure overall balance, and on the other hand, it can better balance cost and light efficiency. From an optical perspective alone, since focusing requires a more concentrated light spot light path, it requires less area to be blocked, so the length of the second light-cutting plate 422 can be reduced. However, if the size and weight of the two sides of the cutoff baffle 42 differ significantly, it will be difficult to ensure the balance of the cutoff baffle 42. Therefore, the end of the second light-cutting plate 422 near the electromagnet rod can be designed with a special shape. This special shape design can simultaneously meet the requirements of balance and assemblability without affecting the light efficiency.

[0058] In this embodiment, the first light-cutting piece 421 includes a first arc piece 4211 and a second arc piece 4212, and the second light-cutting piece 422 includes a third arc piece 4221 and a fourth arc piece 4222. The width of the first arc piece 4211 is greater than that of the second arc piece 4212, and the width of the third arc piece 4221 is greater than that of the fourth arc piece 4222. The first arc piece 4211 and the third arc piece 4221 have the same width, and the second arc piece 4212 and the fourth arc piece 4222 have the same width. The first arc piece 4211, the second arc piece 4212, the third arc piece 4221, and the fourth arc piece 4222 have the same curvature. More specifically, the first arc piece 4211 is adjacent to the fourth arc piece 4222 or the two are connected, or the second arc piece 4212 is adjacent to the third arc piece 4221 or the two are connected. This embodiment is configured so that the light pattern after the two light-cutting pieces are cut is symmetrical, which is beneficial to improving the light-emitting effect. More specifically, in this embodiment, the first arc piece 4211 is arranged close to the fourth arc piece 4222, that is, the second arc piece 4212 and the third arc piece 4221 are located on both sides of the cut-off baffle 42, and the first arc piece 4211 and the fourth arc piece 4222 are located in the middle of the cut-off baffle. This design is more suitable for the domestic left-hand drive mode. Furthermore, the first arc piece 4211 and the second arc piece 4212 are integrally formed, the third arc piece 4221 and the fourth arc piece 4222 are integrally formed, and the first light-cutting piece 421 and the second light-cutting piece 422 are integrally formed. The one-piece molding design facilitates the manufacture, installation and disassembly of components.

[0059] Furthermore, the distance between the first LED illuminator 22 and the light-emitting lens 5 is smaller than the distance between the second LED illuminator 32 and the light-emitting lens 5. This arrangement allows the two LED illuminators to be staggered in the length direction of the headlight, which is beneficial to the heat dissipation of the light source. In addition, it can also better achieve the effects of focusing and flooding lighting.

[0060] In this embodiment, the distance between the optical center of the first LED illuminator 22 and the optical axis of the first lens portion 51 is 0 to 4 mm, and the distance between the optical center of the second LED illuminator 32 and the optical axis of the second lens portion 52 is 0 to 4 mm. The optical center of the first LED illuminator 22 and the optical center of the second LED illuminator 32 are respectively located on or near the optical axis of the first lens portion 51 and the second lens portion 52. This ensures good heat dissipation of the focused light source and the floodlight source while taking into account the light collection efficiency of the floodlight source and the focused light source, resulting in high light output brightness. The optical center of the LED illuminator in this embodiment refers to the optical center of the LED light-emitting surface. The LED illuminator is composed of an LED chip and a fluorescent layer covering the LED chip. The surface of the fluorescent layer is the LED light-emitting surface.

[0061] In addition, the heat dissipation structure includes a fan 11, which is disposed at the rear or bottom portion of the headlight. The rear portion of the headlight is the side facing away from the light-emitting lens 5, and the bottom portion of the headlight is the side facing away from the upper surface of the heat dissipation substrate 1. In this embodiment, a fan cover 12 is provided to protect the fan 11, preventing dust from entering the interior of the headlight while enhancing the aesthetics.

[0062] The first LED illuminator 22 is mounted on the first light source copper plate 61, and the second LED illuminator 32 is mounted on the second light source copper plate 62. The first light source copper plate 61 and the second light source copper plate 62 are both mounted on the upper surface of the heat dissipation substrate 1. The heat dissipation structure also includes a focused floodlight heat dissipation assembly 8, which contacts the upper surfaces of the first light source copper plate 61 and the second light source copper plate 62. The heat dissipation substrate 1 is the main supporting structure and also has a heat dissipation function. The first LED illuminator 22 and the second LED illuminator 32 are respectively mounted on the first light source copper plate 61 and the second light source copper plate 62. The first light source copper plate 61 and the second light source copper plate 62 are mounted on the upper surface of the heat dissipation substrate 1. Heat is quickly transferred through the heat dissipation substrate 1, which facilitates heat circulation and discharge out of the vehicle light. In the existing technology, because the low-beam light source and the high-beam light source are located on the upper and lower sides of the heat dissipation substrate, respectively, it is impossible to design the focused floodlight heat dissipation assembly 8 to be directly connected to the copper plates of the low-beam and high-beam light sources at the same time. In this embodiment, since the focused light source and the floodlight light source are both on the upper surface of the heat dissipation substrate 1, that is, located on the same side of the heat dissipation substrate 1, the focused floodlight source heat dissipation assembly 8 can directly contact the first light source copper plate 61 and the second light source copper plate 62, and the light source heat dissipation efficiency is good.

[0063] Furthermore, the concentrated floodlight source heat dissipation assembly 8 is a heat pipe assembly 81, as shown in Figures 9 to 12, the heat pipe assembly 81 includes a heat pipe 811 and a connector 812, and the connector 812 is provided with a groove 8121 for accommodating at least a portion of the heat pipe 811; the first light source copper plate 61 and the second light source copper plate 62 are arranged below the connector 812 and in contact with the connector 812 and / or the heat pipe 811. The heat pipe 811 is welded in the groove 8121. The welding method can make the heat pipe 811 and the connector 812 tightly connected together. The design of the groove 8121 can also make the heat pipe 811 and the connector 812 contact the first light source copper plate 61 and the second light source copper plate 62. The heat pipe has the characteristics of high thermal conductivity and large surface area, and can quickly absorb and conduct heat. The heat pipe 811 directly contacts the first light source copper plate 61 and the second light source copper plate 62, and can directly conduct heat to make the heat dissipation efficiency higher. The design of the connector 812 can increase the contact area between the heat pipe assembly 81 and the first light source copper plate 61 and the second light source copper plate 62, thereby improving the heat dissipation effect by increasing the heat conduction surface.

[0064] In this embodiment, the concentrated floodlight heat dissipation assembly 8 includes a heat pipe assembly 81 and heat dissipation fins 82 connected to the heat pipe assembly 81. By welding the heat pipe assembly 81 to the heat dissipation fins 82, the concentrated floodlight heat dissipation assembly 8 has a larger heat dissipation surface area and a better heat dissipation effect. The heat dissipation fins 82 can be designed in a variety of ways. As shown in Figure 7, the heat dissipation fins 82 are integrally formed metal components with a plurality of spaced metal sheets in the middle. As shown in Figure 8, the heat dissipation fins 82 are metal components assembled from a plurality of metal sheets.

[0065] In this embodiment, the fan 11 is disposed at the rear of the automotive lamp, and the heat dissipation fins are disposed near the fan 11 and between the fan 11 and the first light source copper plate 61 and / or between the fan 11 and the second light source copper plate 62. The combination of active and passive heat dissipation can further improve the heat dissipation effect of the light source and the entire lamp.

[0066] Furthermore, the automobile headlight further includes a fill light source 10, and the light output lens 5 is provided with a third lens portion 53 for outputting the fill light source 10. The provision of the fill light source 10 can further achieve a higher brightness and longer distance light output effect, increase the brightness of the headlight, and improve the utilization rate of the entire light output lens.

[0067] In this embodiment, there are two third lens sections 53, which are respectively located above the first lens section 51 and the second lens section 52. In other embodiments, there may be only one third lens section 53, which is located at the top of the light-emitting lens 3, and the first lens section 51 and the second lens section 52 are symmetrically arranged along the third lens section 53. In other embodiments, there may be three or more light-emitting lens sections 53.

[0068] In this embodiment, the first lens portion 51 and the second lens portion 52 are the same size, and the equivalent diameters of the first lens portion 51 and the second lens portion 52 are 40 to 50 mm; the equivalent diameter of the third lens portion 53 is 40 to 50 mm. Furthermore, in this embodiment, the ratio of the equivalent diameter of the first lens portion 51, the equivalent diameter of the second lens portion 52 and the diameter of the light incident surface of the light-emitting lens 5 is (0.55 to 0.7):1. The focal length of small lenses such as the first lens portion 51 and the second lens portion 52 is shorter, and the positions of the floodlight source and the spotlight source can be closer to the light-emitting lens 5, the overall length of the headlight is shorter, the headlight is small, the structure is more compact, and the weight is lighter. The equivalent diameter described in the present invention refers to: the diameter of a complete spherical lens or aspherical lens under the condition of equal side thickness.

[0069] Furthermore, taking a plane parallel to the surface of the heat dissipation substrate and passing through the vertices of the first lens portion 51 and the second lens portion 52 as a reference plane, the area of ​​the curved surface of the first lens portion 51 and the second lens portion 52 below the reference plane is greater than the area of ​​the curved surface above the reference plane. As shown in Figure 14, taking the plane at the vertices of the first lens portion 51 and the second lens portion 52 as the reference plane, the lower portion is the first lens portion lower curved surface 511 and the second lens portion lower curved surface 521, and the upper portion is the first lens portion upper curved surface 512 and the second lens portion upper curved surface 522. The area of ​​the first lens portion lower curved surface 511 is greater than the area of ​​the first lens portion upper curved surface 512, and the area of ​​the second lens portion lower curved surface 521 is greater than the area of ​​the second lens portion upper curved surface 522. This design improves the light extraction efficiency of the spotlight and floodlight sources. In this embodiment, the vertices of the first lens portion 51 and the second lens portion 52 refer to the convex points at the outermost edges of the light-emitting surfaces of the first lens portion 51 and the second lens portion 52 along the length of the vehicle lamp. Furthermore, in this embodiment, the vertices of the first lens portion 51 and the first lens portion 52 are located in the lower half of the light output lens 5 .

[0070] Furthermore, the heat dissipation structure also includes a heat dissipation fan 7 inclined to the upper surface of the heat dissipation substrate 1 and located above the floodlight source and the spotlight source, and a heat sink 9 disposed above the floodlight source and the spotlight source. The heat dissipation fan 7 is disposed within the heat sink 9, and the fill light source 10 is disposed on the heat sink 9, which can improve the heat dissipation effect of the fill light source 10. The fill light source 10 is an LED light source and / or a laser light source. The laser light source and LED light source can be conventional structures on the market, such as a laser light source including a housing, a laser disposed within the housing, a focusing lens disposed sequentially along the laser light path of the laser, and a phosphor sheet. The LED light source includes an LED illuminator.

[0071] In this embodiment, the cooling fan 7 is positioned directly opposite the curved surfaces of the first reflector 21 and the second reflector 31. Positioning the cooling fan 7 obliquely toward the heat dissipation substrate 1 and directly opposite the curved surfaces of the first reflector 21 and the second reflector 31 allows for faster exhaust of internal hot air. Furthermore, the light-cutting mechanism 4 includes a solenoid valve 41, which also generates heat. This design allows the cooling fan 7 to be positioned directly opposite the light-cutting mechanism 4, effectively dissipating localized heat from the light-cutting mechanism 4 and achieving improved heat dissipation.

[0072] In this embodiment, as shown in Figures 11 and 12, a protrusion 8122 is provided on the left and right sides of the connector 812, and the two protrusions 8122 are respectively located on the upper and lower sides of the connector 812; the first light source copper plate 61 and the second light source copper plate 62 are respectively connected to a protrusion 8122. The protrusion 8122 is provided with a screw hole, through which the heat pipe assembly 81 is locked on the heat dissipation substrate 1. The setting of the protrusion 8122 facilitates the installation of the heat pipe assembly 81, and the central symmetric design of the protrusion 8122 makes the center of gravity of the connector 812 at its center position, which is convenient for ensuring the balance of the car light. On the other hand, since the first LED light-emitting body 22 and the second LED light-emitting body 32 are at different distances from the light-emitting lens 5, such a design can enable the heat pipe assembly 81 to better dissipate heat for the first LED light-emitting body 22 and the second LED light-emitting body 32.

[0073] Furthermore, the heat sink 9 is a metal shell structure that matches the placement position of the cooling fan 7, which can prevent the internal structure of the headlight from being exposed, dust and other impurities from entering the headlight, and also improve the aesthetics of the headlight; the volume and surface area of ​​the heat sink 9 are much larger than the heat sinks currently on the market, and the cooling fan 7 and the heat sink 9 cooperate to achieve a significant improvement in the heat dissipation effect.

[0074] As shown in Figure 3, in this embodiment, fan 11 is used to blow air into the headlight, while cooling fan 7 is used to exhaust air to the outside of the headlight. Due to the presence of the first and second reflectors 21 and 31, the airflow from fan 11 changes direction within the headlight after entering. The cooling fan 7 is positioned diagonally opposite the heat dissipation substrate 1, directly facing the curved surface of the reflectors, to more rapidly exhaust the heat from within the headlight. As shown in Figure 6, heat from the first and second LED luminaires 21 and 32 within the headlight is transferred to the first and second light source copper plates 61 and 62, and then via heat pipe 811 and connector 812 to the floodlight heat dissipation assembly 8 and the heat dissipation substrate 1. Combined with the airflow from fan 11 into the headlight, the exhaust from cooling fan 7, and the heat sink 9, heat circulation within the headlight is accelerated, allowing heat to be rapidly discharged from the headlight, achieving effective heat dissipation.

[0075] This embodiment also includes a driver board 13 for driving the floodlight and spotlight. A lower cover plate 14 is provided below the heat dissipation substrate 1 to encapsulate the bottom of the headlight. To facilitate the installation of the light-emitting lens 5, a lens bracket 15 is provided. To facilitate the installation of the various components of the headlight, a mounting bracket 16 is provided, and the lens bracket 15 is mounted on the mounting bracket 16. Furthermore, the mounting bracket 16 is perpendicular to the heat dissipation substrate 1 and can be fixed to the heat dissipation substrate 1 using screws or other means, or the mounting bracket 16 and the heat dissipation substrate 1 can be integrally formed.

[0076] Example 2

[0077] The vehicle lamp of this embodiment 2 is substantially the same as that of embodiment 1, except that the fill light source of this embodiment 2 is a laser light source. As shown in FIG16 , the fill light source of this embodiment is a laser light source, and the number of the third lens units is two. The laser light source includes: a laser 101 that emits a laser beam; a beam splitter 102 disposed on the path of the laser beam for splitting the laser beam into a first laser beam and a second laser beam; a first wavelength conversion element 103 disposed on the path of the first laser beam, the first wavelength conversion element 103 being configured to at least partially convert the first laser beam into a converted laser beam; a second wavelength conversion element 104 disposed on the path of the second laser beam, the second wavelength conversion element 104 being configured to at least partially convert the second laser beam into a converted laser beam; a first lens 105 for collecting light emitted after passing through the first wavelength conversion element 103, and a second lens 106 for collecting light emitted after passing through the second wavelength conversion element 104; the first lens 105 is coaxially disposed with one of the third lens units 53, and the second lens 106 is coaxially disposed with the other of the third lens units 53. The laser beam emitted by the laser light source in this embodiment 2 is divided into two laser beams under the action of the spectroscopic element 102, namely the first laser beam and the second laser beam. After the first wavelength conversion element 103 is acted upon, at least part of the first laser beam is converted into the converted laser beam. The unconverted laser beam and the converted laser beam are combined to form the illumination light, which is collected by the first lens 105 and then emitted through one of the third lens portions 53 to form high-beam lighting. After the second wavelength conversion element 104 is acted upon, at least part of the second laser beam is converted into the converted laser beam. The unconverted laser beam and the converted laser beam are combined to form the illumination light, which is collected by the second lens 106 and then emitted through another third lens portion 53 to form high-beam lighting. In this embodiment, by designing the spectroscopic element 102, one laser can emit light from two third lens portions, thereby improving the light emission efficiency of the laser. Specifically, the spectroscopic element 102 can be a polarization spectrometer or a spectroscopic filter. More specifically, the first wavelength conversion element 103 and the second wavelength conversion element 104 are both phosphor sheets. Furthermore, a diffuser 108 is positioned in the optical path of the first and second laser beams. This diffuser 108 is used to homogenize the light spot incident on the phosphor sheet to prevent burn-in. More specifically, a third lens 107 is positioned between diffuser 108 and the phosphor sheet to focus the first and second laser beams onto the phosphor sheet. Furthermore, as shown in Figure 16, a reflector 109 is positioned in the optical path of the second laser beam. This reflector 109 is used to alter the propagation of the second laser beam, ensuring that the second laser beam, after passing through reflector 109, is parallel to the first laser beam.

[0078] The other structures and working principles of this embodiment 2 are basically the same as those of embodiment 1 and will not be repeated here.

[0079] Example 3

[0080] As shown in Figures 17 and 18, an automotive headlight includes a heat dissipation substrate 1, a floodlight source and a spotlight source disposed above the heat dissipation substrate 1, a light-cutting mechanism 4 for switching between high and low beam functions, and a light-emitting lens 5. The light-emitting lens 5 includes a first lens portion 51 for emitting light from the floodlight source and a second lens portion 52 for emitting light from the spotlight source. The distance between the optical center of the floodlight source and the optical axis of the first lens portion 51 is 0 to 5 mm, and the distance between the optical center of the spotlight source and the optical axis of the second lens portion 52 is 0 to 5 mm. The line connecting the vertices of the first lens portion 51 and the second lens portion 52 is parallel to the upper surface of the heat dissipation substrate. More specifically, in this embodiment, the ratio of the equivalent diameter of the first lens portion 51 and / or the equivalent diameter of the second lens portion 52 to the diameter of the light incident surface of the light-emitting lens 5 is (0.55 to 0.7):1.

[0081] The structure and operating principle of the automobile lamp of Example 3 are the same as those of Example 1 and will not be further described here. It should be noted that the ratio of the equivalent diameter of the first lens portion 51 and / or the equivalent diameter of the second lens portion 52 to the diameter of the light incident surface of the light output lens 5 is (0.55-0.7):1. This small lens, such as the first lens portion 51 and the second lens portion 52, has a shorter focal length, allowing the floodlight and spotlight sources to be positioned closer to the light output lens 5. This results in a shorter overall length (in the x-axis direction) of the automobile lamp, a smaller size, a more compact structure, and a lighter weight.

[0082] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the technical solutions of the present invention, and are not intended to limit the specific implementation methods of the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the claims of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A car lamp, characterized in that: The invention comprises a heat dissipation substrate, a floodlight source and a spotlight source arranged on the upper surface of the heat dissipation substrate, a light cutting mechanism for realizing switching between high and low beam functions, and a light emitting lens, wherein the light emitting lens is provided with a first lens portion for emitting light from the floodlight source and a second lens portion for emitting light from the spotlight source, the width of the light emitted through the first lens portion is greater than the width of the light emitted through the second lens portion, the brightness of the light emitted through the first lens portion is lower than the brightness of the light emitted through the second lens portion, and the first lens portion and the second lens portion are arranged along the width direction of the automobile lamp; and the invention also comprises a heat dissipation structure for actively and / or passively dissipating heat for the automobile lamp.

2. The automobile lamp according to claim 1, characterized in that: The floodlight source includes a first LED light-emitting body and a first light-collecting component for collecting light from the first LED light-emitting body. The spotlight source includes a second LED light-emitting body and a second light-collecting component for collecting light from the second LED light-emitting body. The collection efficiency of the first light-collecting component for the first LED light-emitting body is not less than 80%, and the collection efficiency of the second light-collecting component for the second LED light-emitting body is not less than 80%.

3. The automobile lamp according to claim 2, characterized in that: The first light receiving component is a first reflective cup, which covers a first LED light-emitting body and is a symmetrical structure relative to the first LED light-emitting body. The second light receiving component is a second reflective cup, which covers a second LED light-emitting body and is a symmetrical structure relative to the second LED light-emitting body. The size of the first reflective cup is larger than that of the second reflective cup.

4. The automobile lamp according to claim 2, characterized in that: The light cutting mechanism includes a cut-off line baffle and a driving member for driving the cut-off line baffle to change position, the cut-off line baffle includes a first light cutting piece corresponding to the floodlight source and a second light cutting piece corresponding to the spotlight source, the light emitting surfaces of the first LED light emitting body and the second LED light emitting body are not higher than the vertices of the first light cutting piece and the second light cutting piece, and the first light cutting piece and the second light cutting piece can both cut the light into a low beam light type.

5. The automobile lamp according to claim 4, characterized in that: The cut-off line baffle is an asymmetric special-shaped structure, and in a width direction parallel to the vehicle lamp, the length of the first light cutting piece is greater than the length of the second light cutting piece.

6. The automobile lamp according to claim 4, characterized in that: The first light cutting piece includes a first arc piece and a second arc piece, the second light cutting piece includes a third arc piece and a fourth arc piece, the width of the first arc piece is greater than that of the second arc piece, the width of the third arc piece is greater than that of the fourth arc piece, the width of the first arc piece and the third arc piece are the same, the width of the second arc piece and the fourth arc piece are the same, and the curvatures of the first arc piece, the second arc piece, the third arc piece, and the fourth arc piece are the same; The first arc piece is close to the fourth arc piece or the two are connected, or the second arc piece is close to the third arc piece or the two are connected; the first arc piece and the second arc piece are integrally formed, and / or the third arc piece and the fourth arc piece are integrally formed, and / or the first light cutting piece and the second light cutting piece are integrally formed.

7. The automobile lamp according to claim 2, characterized in that: The distance between the first LED light emitting body and the light emitting lens is smaller than the distance between the second LED light emitting body and the light emitting lens.

8. The automobile lamp according to claim 2, characterized in that: The distance between the optical center of the first LED light emitting body and the optical axis of the first lens portion is 0 to 4 mm, and the distance between the optical center of the second LED light emitting body and the optical axis of the second lens portion is 0 to 4 mm.

9. The automobile lamp according to claim 2, characterized in that: The heat dissipation structure includes a fan, which is arranged at the tail of the automobile lamp or the bottom of the automobile lamp. The tail of the automobile lamp is the side away from the light output lens, and the bottom of the automobile lamp is the side away from the upper surface of the heat dissipation substrate.

10. The automobile lamp according to claim 9, characterized in that: The first LED light-emitting body is installed on the first light source copper plate, and the second LED light-emitting body is installed on the second light source copper plate; the first light source copper plate and the second light source copper plate are both installed on the upper surface of the heat dissipation substrate; the heat dissipation structure also includes a concentrated flood light source heat dissipation component, and the concentrated flood light source heat dissipation component is in contact with the upper surfaces of the first light source copper plate and the second light source copper plate.

11. The automobile lamp according to claim 10, characterized in that: The concentrated flood light source heat dissipation assembly is a heat pipe assembly, which includes a heat pipe and a connector, and the connector is provided with a groove for accommodating at least a portion of the heat pipe; the first light source copper plate and the second light source copper plate are arranged below the connector and are in contact with the connector and / or the heat pipe.

12. The automobile lamp according to claim 11, characterized in that: The concentrated flood light source heat dissipation assembly also includes heat dissipation fins connected to the heat pipe, the fan is arranged at the rear of the automobile lamp, and the heat dissipation fins are arranged close to the fan and are located between the fan and the first light source copper plate and / or between the fan and the second light source copper plate.

13. The vehicle lamp according to any one of claims 1 to 12, characterized in that: The automobile lamp also includes a fill light source, and the light output lens is provided with a third lens portion for emitting the fill light source.

14. The automobile lamp according to claim 13, characterized in that: There is one third lens portion, which is located at the top of the light-emitting lens, and the first lens portion and the second lens portion are symmetrically arranged along the third lens portion; or there are two third lens portions, which are respectively located above the first lens portion and the second lens portion; or the number of the third lens portions is three or more.

15. The automobile lamp according to claim 13, characterized in that: The first lens portion and the second lens portion are of the same size, and the equivalent diameters of the first lens portion and the second lens portion are 40 to 50 mm; and / or the equivalent diameter of the third lens portion is 40 to 50 mm, and the number of the third lens portions is 2.

16. The automobile lamp according to claim 13, characterized in that: Taking a plane parallel to the surface of the heat dissipation substrate and passing through the vertices of the first lens portion and the second lens portion as a reference plane, the area of ​​the curved surface of the first lens portion and the second lens portion below the reference plane is larger than the area of ​​the curved surface above the reference plane.

17. The automobile lamp according to claim 13, characterized in that: The heat dissipation structure also includes a heat dissipation fan inclined to the upper surface of the heat dissipation substrate and located above the floodlight source and the spotlight source, and a heat dissipation body arranged above the floodlight source and the spotlight source, the heat dissipation fan is arranged in the heat dissipation body, the fill light source is arranged on the heat dissipation body, and the fill light source is an LED light source and / or a laser light source.

18. The automobile lamp according to claim 13, characterized in that: The fill light source is a laser light source, the number of the third lens parts is 2, and the laser light source includes: a laser that emits a laser beam; A beam splitter element disposed on a path of the laser beam and used to split the laser beam into a first laser beam and a second laser beam; A first wavelength conversion element disposed on a path of the first laser, the first wavelength conversion element being used to convert at least part of the first laser into converted light; A second wavelength conversion element disposed on a path of the second laser, the second wavelength conversion element being used to convert at least part of the second laser into converted light; and a first lens for collecting the light emitted after being acted upon by the first wavelength conversion element and a second lens for collecting the light emitted after being acted upon by the second wavelength conversion element; The first lens and one of the third lens portions are coaxially arranged, and the second lens and the other third lens portion are coaxially arranged.

19. A car lamp, characterized in that: It includes a heat dissipation substrate, a floodlight source and a spotlight source arranged above the heat dissipation substrate, a light cutting mechanism and a light output lens for realizing high and low beam function switching, the light output lens is provided with a first lens portion for emitting light from the floodlight source and a second lens portion for emitting light from the spotlight source, the distance between the optical center of the floodlight source and the optical axis of the first lens portion is 0 to 5 mm, the distance between the optical center of the spotlight source and the optical axis of the second lens portion is 0 to 5 mm, and the line connecting the vertex of the first lens portion and the vertex of the second lens portion is parallel to the upper surface of the heat dissipation substrate.

20. The automobile lamp according to claim 19, characterized in that: The ratio of the equivalent diameter of the first lens portion and / or the equivalent diameter of the second lens portion to the diameter of the light incident surface of the light output lens is (0.55-0.7):1.

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