Vehicle headlight

Abstract

This vehicle headlamp (10) is provided with a first light source (11), a second light source (12) that forms a low-beam light distribution pattern (LP) together with the first light source (11), a first lens (14), and a second lens (15). A front surface (14F) of the first lens (14) forms a single lens surface, and a cutout region (C) cut out rearward is formed on a rear surface (14B) of the first lens (14). The first lens (14) has a first portion (141) through which light from the first light source (11) is transmitted and in which the cutout region (C) is not formed, and a second portion (142) through which light from the second light source (12) is transmitted and in which the cutout region (C) is formed. At least a portion of the second lens (15) is provided in the cutout region (C).

Description

Vehicle headlights

[0001] The present disclosure relates to a vehicle headlamp.

[0002] Patent Document 1 discloses a vehicle headlamp that forms a light distribution pattern for a low beam and a light distribution pattern for an overhead sign. The vehicle headlamp includes a light source, a reflector with a first reflective surface, a projection lens in which a portion of the upper lens region is cut along the front-to-rear direction to form a vertical cross section and a horizontal cross section, a shade, and a second reflective surface disposed between the reflector and the projection lens. The first front reflective surface of the first reflective surface reflects light from the light source toward the upper lens region of the projection lens via the second reflective surface to form the light distribution pattern for the overhead sign.

[0003] Patent Document 2 discloses an optical unit. The optical unit includes a first light source, a second light source, a rotating reflector that rotates around a rotation axis, and a projection lens. First light from the first light source is reflected by the rotating reflector and enters the projection lens. Second light from the second light source is not reflected by the rotating reflector but enters the projection lens via a diffusing lens. The projection lens projects the first light as a first light distribution pattern and projects the second light as a second light distribution pattern outside the first light distribution pattern in the left and right directions.

[0004] Japanese Patent Application Publication No. 2017-033661 International Publication No. 2020 / 137636

[0005] Attempts have been made to form such a low-beam light distribution pattern using two light sources. For example, a first light source can be used to illuminate the lower part of the low-beam light distribution pattern, and a second light source can be used to illuminate the area protruding above the cut-off line. Controlling the light from each light source with a separate lens makes it easier to obtain the desired light distribution pattern, but this reduces the design freedom of the lamp.

[0006] Therefore, an object of the present disclosure is to provide a vehicle headlamp that can form a low-beam light distribution pattern using multiple light sources without compromising design freedom.

[0007] A vehicle headlamp according to one aspect of the present disclosure includes: a first light source; a second light source that forms a low-beam light distribution pattern together with the first light source; a first lens; and a second lens, wherein the front surface of the first lens forms a single lens surface; and a cutout area that is cut out rearward is formed on the rear surface of the first lens; the first lens has: a first portion that transmits light from the first light source and does not have the cutout area; and a second portion that transmits light from the second light source and has the cutout area, and at least a portion of the second lens is provided in the cutout area.

[0008] According to the present disclosure, the front surface of the first lens is a single lens surface, which allows the first light source and the second light source to form a low-beam light distribution pattern without compromising the design of the lamp.

[0009] Furthermore, according to the present disclosure, at least a portion of the second lens is provided in the cutout region of the first lens, which allows the vertical dimension of the lamp to be smaller than when the first lens and the second lens are provided spaced apart from each other.

[0010] According to the present disclosure, a vehicle headlamp is provided that can form a low-beam light distribution pattern using multiple light sources without compromising design.

[0011] Fig. 1 is a cross-sectional view illustrating the configuration of a vehicle headlamp according to this embodiment. Fig. 2 is a diagram illustrating a first illumination region formed when a first light source of the vehicle headlamp is turned on. Fig. 3 is a diagram illustrating a second illumination region formed when a second light source of the vehicle headlamp is turned on. Fig. 4 is a diagram illustrating an illumination region formed when the first light source and the second light source of the vehicle headlamp are turned on. Fig. 5 is a diagram illustrating a third illumination region formed when the third light source of the vehicle headlamp is turned on. Fig. 6 is a diagram illustrating an illumination region formed when the first light source and the third light source of the vehicle headlamp are turned on.

[0012] Hereinafter, embodiments of the present disclosure will be described with reference to the drawings. For the sake of convenience, descriptions of components having the same reference numerals as those already described in the description of the embodiments will be omitted. Furthermore, for the sake of convenience, the dimensions of each component shown in the drawings may differ from the actual dimensions of each component.

[0013] Furthermore, in the description of this embodiment, for convenience of explanation, the terms "left-right direction," "up-down direction," and "front-rear direction" may be referred to as appropriate. These directions are relative directions set for the vehicle headlamp 10 illustrated in FIG. 1 . Here, the "left-right direction" includes the "left direction" and the "right direction," and is also the vehicle width direction of the vehicle 1 on which the vehicle headlamp 10 is mounted. The "up-down direction" includes the "upward direction" and the "downward direction." The "front-rear direction" includes the "forward direction" and the "rearward direction." The front-rear direction is a direction perpendicular to the left-right direction and the up-down direction. Note that in each drawing, the symbol U indicates the upward direction. The symbol D indicates the downward direction. The symbol F indicates the forward direction. The symbol B indicates the rearward direction. The symbol L indicates the leftward direction. The symbol R indicates the rightward direction. The left-right direction is an example of the horizontal direction.

[0014] A vehicle headlamp 10 according to this embodiment will be described with reference to FIG.

[0015] Fig. 1 is a cross-sectional view illustrating the configuration of a vehicle headlamp 10 according to this embodiment. As shown in Fig. 1, the vehicle headlamp 10 includes a first light source 11, a second light source 12, a first lens 14, and a second lens 15. Each of the components will be described below.

[0016] The primary light source 11 forms a part of the low-beam light distribution pattern LP. The primary light source 11 is, for example, an LED (Light Emitting Diode) element or an LD (Laser Diode) element.

[0017] The secondary light source 12 forms a low-beam light distribution pattern LP together with the primary light source 11. The secondary light source 12 is, for example, a light-emitting diode (LED) element or a laser diode (LD) element. In this embodiment, the secondary light source 12 is provided above the primary light source 11.

[0018] First lens 14 refracts light from first light source 11 and second light source 12 so that the light is irradiated onto each desired irradiation area. First lens 14 is made of, for example, acrylic resin (PMMA). First lens 14 has a first portion 141 through which light from first light source 11 passes, and a second portion 142 through which light from second light source 12 incident via the second lens passes. Second portion 142 and first portion 141 are arranged in this order from top to bottom of first lens 14.

[0019] The first lens 14 has a front surface 14F that forms a single lens surface and a rear surface 14B that is located opposite the front surface 14F in the front-to-rear direction. The front surface 14F of the first lens 14 is formed by a front surface 141F of the first portion 141 and a front surface 142F of the second portion 142, and is configured as a spherical surface with a single curvature. A cutout region C that is cut out toward the rear is formed on the rear surface 14B of the first lens 14. More specifically, the cutout region C is not formed in the first portion 141 of the first lens 14. The cutout region C is formed in the second portion 142 of the first lens 14.

[0020] The second lens 15 bends light from the second light source 12 so that the light is incident on the second portion 142 of the first lens 14. The second lens 15 is made of, for example, acrylic resin (PMMA). At least a portion of the second lens 15 is provided in the cutout region C of the first lens 14.

[0021] Next, the light distribution patterns emitted by the vehicle headlamp 10 will be described with reference to Figures 2 to 4. Figures 2 to 4 are diagrams illustrating light distribution patterns that can be formed when each light source is turned on. These light distribution patterns can be formed on a virtual screen ahead of the vehicle 1 (for example, 25 m ahead). Figures 2 to 4 show line V-V, which indicates the vertical direction (the up-down direction on the virtual screen in each figure) of the center of the illumination range of the vehicle headlamp 10, and line H-H, which is perpendicular to line V-V and extends in the horizontal direction (the left-right direction on the virtual screen in each figure).

[0022] 2 is a diagram illustrating a first illumination region R1 formed when the primary light source 11 of the vehicle headlamp 10 is turned on. As shown in FIG. 2, when the primary light source 11 is turned on, light from the primary light source 11 passes through the first part 141 of the first lens 14 and is irradiated onto a first illumination region R1 below the H line, including the host lane side and other lane sides. In the following description, this first illumination region R1 may be referred to as a first low-beam light distribution pattern LP1.

[0023] 3 is a diagram illustrating a second illumination region R2 formed when the first light source 11 of the vehicle headlamp 10 is not lit but the second light source 12 is lit. As shown in FIG. 3, when the first light source 11 is not lit but the second light source 12 is lit, the light from the second light source 12 first passes through the second lens 15, then passes through the second portion 142 of the first lens 14, and is irradiated onto the second illumination region R2 on the other lane side. At least a portion of the second illumination region R2 is located above the first illumination region R1.

[0024] Fig. 4 is a diagram illustrating an example of an illumination region formed when the primary light source 11 and the secondary light source 12 of the vehicle headlamp 10 are turned on. As shown in Fig. 4, when the primary light source 11 and the secondary light source 12 are turned on, the first illumination region R1 shown in Fig. 2 and the second illumination region R2 shown in Fig. 3 are combined to form a second low beam light distribution pattern LP2. In other words, when the second low beam light distribution pattern LP2 is irradiated, the primary light source 11 and the secondary light source 12 are turned on.

[0025] For example, when driving in urban areas where oncoming vehicles frequently appear, a light distribution pattern that does not illuminate other lanes is desirable. In this case, it may be desirable to illuminate the light higher to further improve visibility ahead of the vehicle. However, if a vehicle ahead is traveling ahead of the vehicle, illuminating the light higher may dazzle the driver of the vehicle ahead. Therefore, it is possible to illuminate the second low-beam light distribution pattern LP2 shown in FIG. 4 when there is no vehicle ahead, and the first low-beam light distribution pattern LP1 shown in FIG. 2 when there is a vehicle ahead. As in this case, it may be desirable to divide a normal low-beam light distribution pattern (the second low-beam light distribution pattern LP2 shown in FIG. 4) into multiple regions and illuminate each region with a separate light source.

[0026] In such a case, unlike the present embodiment, it is conceivable to provide a lens component for each light source in order to control the light emitted from each light source, but this configuration would limit the design to a so-called multi-lens design, and would impair the degree of freedom in the design of the vehicle headlamp.

[0027] However, in this embodiment, the front surface 14F of the first lens 14 is a single lens surface, so that the low-beam light distribution pattern LP can be formed by the first light source 11 and the second light source 12 without impairing the degree of freedom in the design of the lamp.

[0028] Furthermore, according to this embodiment, at least a portion of the second lens 15 is provided in the cutout region C of the first lens 14. Therefore, the vertical dimension of the vehicle headlamp 10 can be reduced compared to when the first lens 14 and the second lens 15 are provided spaced apart from each other in the vertical direction.

[0029] In this embodiment, the light from the first light source 11 is guided to the first irradiation region R1 by the first lens 14, and the light from the second light source 12 is guided to the second irradiation region R2 by the first lens 14 and the second lens 15, thereby forming a low beam light distribution pattern LP.

[0030] If light from two light sources is used, it is conceivable to provide a lens for each of the two light sources. However, if these multiple lenses are provided spaced apart in the vertical direction, the vertical dimension of the lamp would increase. Therefore, if two lenses are to be made common, from the standpoint of the lamp's design, it is required that at least the exit surface of the lens be formed with a single common lens surface. For this reason, if the radius of curvature of the exit surface of the lens is fixed, the only optical element that controls the light from the other light source is the entrance surface of the lens. If the light from the other light source is to be controlled only by the entrance surface of the lens, it is difficult to form a desired light distribution pattern.

[0031] According to this embodiment, in addition to the front surface 14F of the first lens 14, three optical elements are provided to control the direction of light from the secondary light source 12: the incident surface (rear surface 15B) of the second lens 15, the exit surface (front surface 15F) of the second lens 15, and the incident surface (rear surface 142B) of the second portion 142 of the first lens 14, which forms the cutout region C of the first lens 14. This makes it possible to guide the light from the secondary light source 12 in a desired direction with high precision. Furthermore, because the front surface 14F of the first lens 14 forms a single lens surface, the design of the lamp is also highly desirable.

[0032] Note that unevenness may be formed on at least one of rear surface 15B of second lens 15, front surface 15F of second lens 15, and second portion 142 of first lens 14. For example, a textured portion T on which fine unevenness is formed may be provided on front surface 15F of second lens 15. By providing such textured portion T, the light from second light source 12 is diffused, and the light from second light source 12 can be irradiated over a wider range as second irradiation region R2 compared to when textured portion T is not provided.

[0033] The front surface 142F of the second portion 142 of the first lens 14 and the rear surface 142B of the second portion 142 of the first lens 14 may be formed as a spherical surface having a single curvature. In other words, the radius of curvature of the rear surface 142B of the second portion 142 of the first lens 14 may be the same as the radius of curvature of the front surface 14F of the first lens 14 (the front surface 141F of the first portion 141 and the front surface 142F of the second portion 142). In this case, light incident on the rear surface 142B of the second portion 142 and light emitted to the front surface 142F of the second portion 142 are parallel. Furthermore, the optical elements that control the light direction of the second light source 12 are the incident surface (rear surface 15B) of the second lens 15 and the exit surface (front surface 15F) of the second lens 15. This configuration ensures the aesthetic design of the lamp's exterior while relatively facilitating the optical design of the light from each light source. Furthermore, molding the first lens 14 is also easy.

[0034] (First Modification) The first light source 11 and the second light source 12 may be turned on and off individually. With this configuration, for example, by turning off the second light source 12 and turning on the first light source 11 and a third light source 13 (described later), it is possible to form a light distribution pattern different from the low-beam light distribution pattern LP.

[0035] For example, the vehicle headlamp 10 may further include a third light source 13 ( FIG. 1 ). The third light source 13 may be, for example, a plurality of micro LED light emitting elements. The lighting states of these micro LED light emitting elements can be changed independently of one another. In other words, the vehicle headlamp 10 can perform ON / OFF control and brightness adjustment for each of the micro LED light emitting elements included in the third light source 13. The third light source 13 may be provided below the first light source 11.

[0036] 5 is a diagram illustrating a third illumination region R3 that is formed when the third light source 13 of the vehicle headlamp 10 is turned on. As shown in FIG. 2, when the third light source 13 is turned on, the light from the third light source 13 passes through the first part 141 of the first lens 14 and is irradiated onto the third illumination region R3 that is above the H-line and includes the own lane side and other lane sides.

[0037] Fig. 6 is a diagram illustrating an example of an illumination region formed when the first light source 11 and the third light source 13 of the vehicle headlamp 10 are turned on. As shown in Fig. 6, when the first light source 11 and the third light source 13 are turned on, the first illumination region R1 shown in Fig. 2 and the third illumination region R3 shown in Fig. 5 are combined to form a high-beam light distribution pattern HP. In other words, when the high-beam light distribution pattern HP is irradiated, the first light source 11 and the third light source 13 are turned on.

[0038] In this manner, in this embodiment, the first light source 11 and the second light source 12 may be turned on and off individually, and in combination with the turning on and off of the third light source 13, not only a low beam light distribution pattern LP but also a high beam light distribution pattern HP may be formed.

[0039] (Second Modification) The vehicle headlamp 10 may further include a first shade 16, a second shade 17, a first reflector 18, and a second reflector 19 (Fig. 1).

[0040] The first shade 16 is configured to block at least a portion of the light from the first light source 11. The first shade 16 is disposed between the first light source 11 and the third light source 13 in the up-down direction and extends from the base S on which these two light sources are mounted to the first lens 14 in the front-rear direction. The first shade 16 extends in the left-right direction. The first shade 16 may be formed integrally with the base S and provided at an end of the base S close to the first lens 14. The first shade 16 is located near the focal point of the front surface 141F of the first part 141 of the first lens 14. The first shade 16 may block a portion of the light emitted from the third light source 13 in addition to a portion of the light emitted from the first light source 11.

[0041] The second shade 17 is configured to block at least a portion of the light from the secondary light source 12. The second shade 17 is disposed between the second light source 12 and the second lens 15 in the front-rear direction. The second shade 17 extends in the left-right direction. An end of the second shade 17 closer to the first lens 14 is located near the focal point of the second lens 15. A primary lens P that guides light from the secondary light source 12 to the second lens 15 may be provided between the second light source 12 and the second shade 17 in the front-rear direction.

[0042] The first reflector 18 is configured to reflect light from the first light source 11 toward the first lens 14. The first reflector 18 has an ellipsoidal first reflecting surface 181. The first light source 11 is provided at a first focal position of the ellipsoidal first reflecting surface 181. A second focal position of the first reflecting surface 181 and a focal position of the lens surface of the front surface 141F of the first part 141 of the first lens 14 approximately coincide with each other. In addition, the first shade 16 is located near the second focal position of the first reflecting surface 181.

[0043] The second reflector 19 is configured to reflect light from the third light source 13 toward the first lens 14. The second reflector 19 has an ellipsoidal second reflecting surface 191. The third light source 13 is provided at a first focal position of the second reflecting surface 191. The second focal position of the second reflecting surface 191 does not coincide with the focal position of the front lens surface of the first lens.

[0044] The first reflector 18 and the second reflector 19 are attached to a base S on which the first light source 11 and the third light source 13 are mounted. For example, in the vertical direction (from top to bottom), the first reflector 18, the first light source 11, the third light source 13, and the second reflector 19 are arranged on the base in this order.

[0045] As shown in FIG. 2 , when the primary light source 11 is turned on, a portion of the light emitted from the primary light source 11 is blocked by the first shade 16. As a result, a cutoff line CL1 that extends in the left-right direction and has a relatively large contrast ratio between light and dark is formed. Meanwhile, another portion of the light emitted from the primary light source 11 is irradiated onto an area including an area below the cutoff line CL1 via the first portion 141 of the first lens 14. Furthermore, a portion of the light emitted from the primary light source 11 is incident on the first portion 141 of the first lens 14 via the first reflector 18. As a result, the degree of concentration of the light emitted from the primary light source 11 is relatively high. In this way, when the primary light source 11 is turned on, light is irradiated onto the first illumination region R1, which has a relatively clear and distinct cutoff line CL1, and a first low-beam light distribution pattern LP1 is formed.

[0046] 3 , when the secondary light source 12 is turned on, a portion of the light emitted from the secondary light source 12 is blocked by the second shade 17. Furthermore, unlike the light emitted from the first light source 11, the light emitted from the secondary light source 12 is incident on the second lens 15 and the second portion 142 of the first lens 14 without passing through the first reflector 18. For this reason, the degree of concentration of the light emitted from the secondary light source 12 is lower than the degree of concentration of the light emitted from the first light source 11. Therefore, compared to the cutoff line CL1 of the first irradiation region R1 formed by the light emitted from the primary light source 11, the outline of the second irradiation region R2 formed by the light emitted from the secondary light source 12 is blurred.

[0047] As shown in Fig. 4, when the first light source 11 and the second light source 12 are turned on, the first irradiation region R1 and the second irradiation region R2 are illuminated, forming a second low-beam light distribution pattern LP2. In this second low-beam light distribution pattern LP2, the second irradiation region R2 with a blurred outline is illuminated at a position overlapping the cutoff line CL. Therefore, compared to the first low-beam light distribution pattern LP1 when only the first light source 11 is turned on, the cutoff line CL is blurred. In this way, the vehicle headlamp 10 of this embodiment can form the second low-beam light distribution pattern LP2 with a blurred cutoff line CL2.

[0048] As shown in FIG. 5 , when the third light source 13 is turned on, the light emitted from the third light source 13 is irradiated onto a region including the region above the cutoff line CL1 through the first portion 141 of the first lens 14. At this time, a portion of the light emitted from the third light source 13 is blocked by the first shade 16. Meanwhile, another portion of the light emitted from the third light source 13 is irradiated onto a region including the region above the cutoff line CL1 through the first portion 141 of the first lens 14. Furthermore, a portion of the light emitted from the third light source 13 is incident on the first portion 141 of the first lens 14 through the second reflector 19. Therefore, the degree of concentration of the light emitted from the second light source 12 is relatively high. The third irradiation region R3 formed in this manner and the first irradiation region R1 formed when the first light source 11 is turned on are combined to form a high beam light distribution pattern HP.

[0049] As described above, the vehicle headlamp 10 of this example includes the first shade 16 that blocks a portion of the light emitted from the primary light source 11. This makes it possible to reduce the glare caused by the primary light source 11 to oncoming vehicles and vehicles ahead.

[0050] Furthermore, the vehicle headlamp 10 includes a second shade 17 that blocks a portion of the light emitted from the second light source 12. This makes it possible to reduce the glare caused by the second light source 12 to oncoming vehicles and vehicles in front.

[0051] The first reflector 18 has an ellipsoidal first reflecting surface 181, and the second reflector 19 has an ellipsoidal second reflecting surface 191. Therefore, the light from the first light source 11 and the third light source 13 can be used efficiently to form a light distribution pattern.

[0052] The vehicle headlamp 10 can irradiate a second low-beam light distribution pattern LP2 having a blurred cutoff line CL2 when both the first light source 11 and the second light source 12 are turned on, and can irradiate a first low-beam light distribution pattern LP1 having a clear cutoff line CL1 when only the first light source 11 is turned on. In this way, the vehicle headlamp 10 can easily switch between the first low-beam light distribution pattern LP1 and the second low-beam light distribution pattern LP2.

[0053] Although the embodiments of the present disclosure have been described above, it goes without saying that the technical scope of the present disclosure should not be interpreted as being limited by the description of the present embodiments. The present embodiments are merely examples, and it will be understood by those skilled in the art that various modifications of the embodiments are possible within the scope of the disclosure described in the claims. The technical scope of the present disclosure should be determined based on the scope of the disclosure described in the claims and its equivalents.

[0054] The vehicle headlamp 10 is capable of emitting an adaptive driving beam (ADB) light distribution pattern. The ADB light distribution pattern is a light distribution pattern that does not emit light into an area of ​​the high beam distribution pattern HP where an object, such as a preceding vehicle or an oncoming vehicle, is present, and changes the non-illuminated area depending on the presence and position of the object. The vehicle headlamp 10 can dim any area above the H-line by controlling the on / off state and adjusting the brightness of each of the micro LED light-emitting elements that make up the third light source 13, and can emit an ADB light distribution pattern. In this specification, "dimming" includes at least one of blocking at least a portion of the light emitted from the third light source 13 and weakening the intensity of the light emitted from the third light source 13.

[0055] The first light source 11, the second light source 12, and the third light source 13 may be provided on a common base S. In this case, the plurality of light sources are unitized, making assembly easy. The second light source 12 may be provided below the first light source 11 and the third light source 13. In this case, the first portion 141 and the second portion 142 are arranged in this order from above to below the first lens 14.

[0056] The configurations described in the items listed below also constitute part of the present disclosure. Item 1: A vehicle headlamp comprising: a first light source; a second light source that forms a low-beam light distribution pattern together with the first light source; a first lens; and a second lens, wherein the front surface of the first lens forms a single lens surface, and a cutout area that is cut out rearward is formed on the rear surface of the first lens, and the first lens has: a first portion that transmits light from the first light source and does not have the cutout area; and a second portion that transmits light from the second light source and has the cutout area, and at least a portion of the second lens is provided in the cutout area. Item 2: The vehicle headlamp according to Item 1, wherein light from the first light source passes through the portion of the first lens and is irradiated onto a first illumination area below the H-line and including the own lane side and other lane sides, and light from the second light source passes through the second lens and the second portion of the first lens and is irradiated onto a second illumination area on the other lane side and above the first illumination area, and the first illumination area and the second illumination area form the low beam light distribution pattern. Item 3: The vehicle headlamp according to Item 1 or 2, wherein the first light source and the second light source are turned on and off independently. Item 4: The vehicle headlamp according to any one of Items 1 to 3, wherein unevenness is formed on at least one of the second portion of the first lens, the front surface of the second lens, and the rear surface of the second lens. Item 5: The vehicle headlamp according to any one of Items 1 to 4, further comprising a first shade that blocks at least a portion of the light from the first light source. Item 6: The vehicle headlamp according to any one of Items 1 to 5, further comprising: a second shade that blocks at least a portion of the light from the second light source.

[0057] This application claims priority based on Japanese Application No. 2023-140991 filed on August 31, 2023, and incorporates by reference all of the contents of the aforementioned Japanese application.

Claims

1. A vehicle headlamp comprising: a first light source; a second light source which forms a low beam light distribution pattern together with the first light source; a first lens; and a second lens, wherein a front surface of the first lens forms a single lens surface, and a cutout area which is cut out rearward is formed on a rear surface of the first lens, the first lens having a first portion which transmits light of the first light source and in which the cutout area is not formed, and a second portion which transmits light of the second light source and in which the cutout area is formed, and at least a portion of the second lens is provided in the cutout area.

2. The vehicle headlamp according to claim 1, wherein light from the first light source passes through the portion of the first lens and is irradiated onto a first illumination area below the H line and including the own lane side and other lane sides, and light from the second light source passes through the second lens and the second portion of the first lens and is irradiated onto a second illumination area on the other lane side and above the first illumination area, and the first illumination area and the second illumination area form the low beam light distribution pattern.

3. The vehicle headlamp according to claim 1, wherein the first light source and the second light source are turned on and off independently.

4. The vehicle headlamp according to claim 1, wherein unevenness is formed on at least one of the second portion of the first lens, the front surface of the second lens, and the rear surface of the second lens.

5. The vehicle headlamp according to claim 1, further comprising a first shade that blocks at least a portion of the light from the first light source.

6. The vehicle headlamp according to claim 1, further comprising a second shade that blocks at least a portion of the light from the second light source.

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