CN210601446U - Vehicle dipped headlight and vehicle - Google Patents

Abstract

The utility model relates to a vehicle passing lamp and vehicle, vehicle passing lamp includes light source (1), reflector (2), the body (3) and collector lens (4) that are in the light, reflector (2) are formed with anti-light cavity, and this anti-light cavity has relative front end and rear end, the front end has the opening, collector lens (4) set up in the front end just right to the opening, light source (1) set up in the rear end, the body (3) that are in the light with reflector (2) integrated into one piece, and the structure is for can making light that light source (1) sent passes be formed with the light and shade cutoff line in the illumination zone that collector lens (4) outwards throw out to eliminate the glare. Thus, the vehicle low beam lamp simplifies the structure and the production steps, and has small volume, light weight and low failure probability.

Description

Vehicle dipped headlight and vehicle

Technical Field

The present disclosure relates to the technical field of vehicle lighting, in particular to a vehicle dipped headlight and a vehicle.

Background

In the technical field of vehicle lamp illumination, headlamps used for illumination are generally divided into high beams and low beams, wherein the high beams are concentrated and have high brightness, so that the sight line can be improved, the observation field can be enlarged, and the headlamps are used for long-distance illumination; the dipped headlight has a large illumination range and a short illumination distance and is used for short-distance illumination. The existing high beam is directed to the eyes of the driver of the opposite coming vehicle and/or is directed to the strong light reflected to the eyes of the driver behind the rearview mirror of the same-direction front vehicle, and the strong light is called glare. In the related art, glare is eliminated by arranging a light barrier in the low beam lamp, so that driving safety of oncoming vehicles and safety of pedestrians on the road are protected under the conditions of meeting at night and the like, and requirements for safety and illumination brightness are met.

However, the light barrier is usually fixed at a desired position of the low beam lamp by means of a connector or a connecting structure, so that the structure of the low beam lamp is complicated, and not only is a step of installing and fixing the light barrier required in the production process thereof, but also the arrangement of the connector or the connecting structure therein increases the volume and weight of the low beam lamp.

SUMMERY OF THE UTILITY MODEL

An object of the present disclosure is to provide a vehicle low beam lamp which not only simplifies the structure and production steps, is small in size and light in weight, but also has a low probability of failure.

Another object of the present disclosure is to provide a vehicle whose lamp is convenient for maintenance and can reduce the number of maintenance times.

In order to achieve the above object, in one aspect, the present disclosure provides a vehicle low beam including a light source, a reflector, a light blocking body, and a condensing lens, wherein the reflector is formed with a reflective cavity having a front end and a rear end opposite to each other, the front end has an opening, the condensing lens is disposed at the front end and opposite to the opening, the light source is disposed at the rear end, the light blocking body is integrally formed with the reflector, and the light blocking body is configured to enable light emitted by the light source to pass through a light cut-off line formed in an illumination area projected outward by the condensing lens so as to eliminate glare.

Optionally, the light blocking body is disposed in the light reflecting cavity and extends from the light reflecting body towards the opening and towards a main optical axis of the condenser lens, the surface of the light blocking body is divided into a first surface and a second surface, part of light rays emitted by the light source directly irradiate and/or irradiate the second surface after being reflected by the reflecting surface of the reflecting cavity, the first surface and the second surface intersect in the opening at the front side of the light barrier to form a light barrier edge, and the second surface projection in a direction parallel to the main optical axis is all located in the projection of the first surface in a direction parallel to the main optical axis, the light blocking edge defines the light and dark cut-off line, all circumferential edges of the first surface and the second surface except the light blocking edge are connected with the light reflecting body, and at least one of the first surface and the second surface is light-tight.

Optionally, the light barrier is made of a light-impermeable material.

Optionally, the light blocking body is made of a light-transmitting material, and the first surface or the second surface is covered with a light-impermeable layer.

Optionally, the second surface is covered with a light-impermeable layer, and the light-impermeable layer is a highly reflective layer.

Optionally, the second surface extends parallel to the main optical axis.

Optionally, the light blocking edge is configured in a Z shape, and comprises two parallel sections which are parallel and staggered, and an inclined section connected between the two parallel sections, and the two stagger angles formed between the inclined section and the two parallel sections are obtuse angles.

Optionally, the front end surface of the reflector is a plane, and the first surface is continuous with the front end surface of the reflector and is configured as a plane.

Optionally, the condenser lens blocks the opening at the front end of the reflective cavity, and the rear surface of the condenser lens is a plane and is attached to the front end surface of the reflector and the first surface.

Optionally, a focal point of the condenser lens is located on a plane of the first surface.

Optionally, the light-reflecting cavity is sealed at the rear end and has a bottom wall surface, the light source is fixed on the bottom wall surface, and the second surface intersects with the bottom wall surface.

Optionally, the light source has a light emitting surface, the light emitting surface is parallel to the bottom wall surface and perpendicular to a main optical axis of the condensing lens.

Optionally, the light-reflecting cavity includes a sidewall surface in the circumferential direction, the second surface intersects with the sidewall surface to divide the sidewall surface into two parts, one of the two parts faces the second surface, the two parts are covered with a high-reflection layer to form a light-reflecting sidewall surface, the bottom wall surface is covered with a high-reflection layer, and the light-reflecting surface at least includes the bottom wall surface and the light-reflecting sidewall surface.

Optionally, the light-reflecting side wall surface is configured as a conical surface gradually expanding from back to front, and a central axis of the conical surface is collinear with a main optical axis of the condenser lens.

Optionally, the cross section of the light-reflecting sidewall surface perpendicular to the main optical axis is an elliptic arc, and a central point of the elliptic arc is located on the main optical axis.

Optionally, the light source is an LED light source.

According to a second aspect of the present disclosure, a vehicle is provided having the vehicle low beam described above.

Through above-mentioned technical scheme, promptly through the vehicle passing lamp that this disclosure provided, body and the reflector integrated into one piece that is in the light, thus, no longer need additionally set up connection mounting or connection structure, the part and the equipment step that need the equipment have been reduced, not only be favorable to simplifying the structure and the production step of passing lamp, still be favorable to reducing the volume and the weight of passing lamp, in addition, cancelled connection mounting or connection structure and can also make whole vehicle passing lamp can not appear here and take place not hard up or the condition of damaging, consequently, can reduce the fault probability of vehicle passing lamp, reduce the cost of eliminating maintenance completely even. Thus, a vehicle including such a vehicle low beam also has the above-described features.

Additional features and advantages of the disclosure will be set forth in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:

FIG. 1 is a perspective view of a condensing lens and a reflector of a low beam lamp of a vehicle according to an embodiment of the present disclosure;

FIG. 2 is a schematic perspective view of a vehicle low beam light source disposed on a bottom wall surface of a reflector cavity according to one embodiment of the present disclosure;

FIG. 3 is a schematic top view of a reflector of a vehicle low beam provided in accordance with an embodiment of the present disclosure;

FIG. 4 is a schematic cross-sectional view of a reflector and a baffle of a vehicle low beam provided in accordance with an embodiment of the present disclosure;

fig. 5 provides a schematic cross-sectional view of a reflector and a visor of a vehicle low beam light according to another embodiment of the present disclosure.

Description of the reference numerals

1-light source, 2-reflector, 21-reflective side wall, 22-bottom wall, 3-light-blocking body,

30-light blocking edge, 31-first surface, 32-second surface, 4-condenser lens, 40-main optical axis.

Detailed Description

The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.

In the present disclosure, unless otherwise stated, the terms of orientation such as "front and back" are used with reference to the propagation of light from the light source, i.e., the light propagates from the back to the front; the terms "inner and outer" refer to the inner and outer contours of the respective component parts. Furthermore, in the following description, when referring to the figures, the same reference numbers in different figures denote the same or similar elements, unless otherwise explained. The foregoing definitions are provided to illustrate and describe the present disclosure only and should not be construed to limit the present disclosure.

According to a first aspect of the present disclosure, there is provided a vehicle low beam, as shown in fig. 1 and 2, the vehicle low beam includes a light source 1, a reflector 2, a light blocking body 3, and a condenser lens 4, the reflector 2 is formed with a reflective cavity having opposite front and rear ends, the front end has an opening, the condenser lens 4 is disposed at the front end and directly opposite to the opening, the light source 1 is disposed at the rear end, the light blocking body 3 is integrally formed with the reflector 2, and is configured to enable light emitted from the light source 1 to be projected outward through the condenser lens 4 to form a cut-off line in an illumination area so as to eliminate glare.

Through above-mentioned technical scheme, through the vehicle passing light that this disclosure provided promptly, body 3 and the 2 integrated into one piece of reflector in the light, thus, no longer need additionally set up connection mounting or connection structure, the part and the equipment step that need the equipment have been reduced, not only be favorable to simplifying the structure and the production step of passing light, still be favorable to reducing the volume and the weight of passing light, in addition, cancelled connection mounting or connection structure and can also make whole vehicle passing light can not appear taking place here and become flexible or the condition of damaging, consequently, can reduce the fault probability of vehicle passing light, reduce the cost of eliminating maintenance completely even. Therefore, the vehicle dipped headlight not only simplifies the structure and the production steps, and has small volume, light weight and low failure probability.

According to some embodiments of the present disclosure, the light-blocking body 3 is disposed in the light-reflecting cavity and extends from the light-reflecting body 2 towards the opening and towards the main optical axis 40 of the condenser lens 4, the surface of the light-blocking body 3 is divided into a first surface 31 and a second surface 32, a portion of the light emitted by the light source 1 is directly irradiated to and/or reflected by the light-reflecting surface of the light-reflecting cavity to the second surface 32, the first surface 31 and the second surface 32 intersect in the opening at the front side of the light-blocking body 3 to form a light-blocking edge 30, and the projection of the second surface 32 in a direction parallel to the main optical axis 40 is entirely located in the projection of the first surface 31 in a direction parallel to the main optical axis 40, the light-blocking edge 30 defines a cut-off line, all circumferential edges of the first and second surfaces 31, 32, except for the light-blocking edge 30, adjoin the reflector 2, at least one of the first and second surfaces 31, 32 being light-tight. Wherein, a part of the light emitted by the light source 1 can directly irradiate the second surface 32, a part of the light directly irradiates the reflecting surface of the reflecting cavity, a part of the light reflected by the reflecting surface of the reflecting cavity directly irradiates the second surface 32, another part of the light reflected by the reflecting surface of the reflecting cavity directly exits from the opening and irradiates on the condensing lens 4, when the second surface 32 can be penetrated by the light, the penetrating part of the light can irradiate the first surface 31, therefore, at least one of the first surface 31 and the second surface 32 is opaque, thereby the light blocking effect can be achieved, and a light and shade cut-off line is formed in the illumination area under the condition that the light blocking edge 30 is constructed into a proper shape. Moreover, all the circumferential edges of the first surface 31 and the second surface 32 except the light blocking edge 30 are connected with the reflector 2, so that the light blocking effect and the formation of the cut-off line can be prevented from being influenced by the light emitted from other places except the opening.

Here, in order to facilitate understanding of the inventive concept of the present disclosure, the following is explained with reference to fig. 3 to 5:

in the low beam lamp provided by the present disclosure, the light blocking edge 30 is designed according to the requirement of the cut-off line, therefore, a light blocking edge 30 may be first constructed in the opening of the light reflecting cavity, as shown in fig. 3, both ends of the light blocking edge 30 (which may be understood as a broken line indicated by reference numeral 32) are connected to the wall surface of the light reflecting cavity, as shown in fig. 3, in the direction of the drawing, the left end of the light blocking edge 30 is led out from the left side of the wall surface of the light reflecting cavity and extends to the right side of the wall surface of the light reflecting cavity, so as to divide the opening of the light reflecting cavity into an upper part and a lower part. A face is then constructed which passes the light-blocking edge 30 and which extends rearwardly from the light-blocking edge 30, the portion enclosed by the wall of the light-reflecting cavity and the light-blocking edge 30 then constituting said first surface 31. After that, a further face is constructed which passes the light-blocking edge 30 and which still extends rearwardly from the light-blocking edge 30, it being noted here that this face is situated on the underside of the first surface 31 in the direction of the drawing plane of fig. 4 and 5, and the portion enclosed by the wall of the light-reflecting cavity and the light-blocking edge 30 then constitutes said second surface 32. Thus, the space surrounded by the first surface 31, the second surface 32, and the wall surface of the light reflecting cavity is filled with a material, thereby constituting the light blocking body 3. It should be noted that the light reflecting body 2 and the light blocking body 3 may be integrally formed by the same material, or may be separately formed by different materials. When the reflector 2 and the light blocking body 3 are formed separately, the reflector 2 does not necessarily extend only from the light blocking edge 30 to the wall surface of the light reflecting cavity, but may also extend into the space reserved in the reflector 2, for example, as shown in fig. 3, the oval dotted line represents the wall surface of the light reflecting cavity, and the square dotted line represents the boundary line of the light blocking body 3.

The first surface 31 may be a plane, a curved surface, a folded surface, or a combination of any two or three of them. Accordingly, the second surface 32 may be a flat surface, a curved surface, a folded surface, or a combination of any two or three of them. Therefore, the light blocking body 3 in the present disclosure does not have a specific shape, and does not need to be limited to a specific shape, and only needs to have the first surface 31, the second surface 32, and the light blocking edge 30 described above.

For example, in one embodiment of the present disclosure, as shown in fig. 4, the first surface 31 is configured as a plane, and the plane is perpendicular to the main optical axis 40 of the condenser lens 4; while the second surface 32 is configured as a fold plane and the fold plane is parallel to the main optical axis 40 of the condenser lens 4. In another embodiment of the present disclosure, as shown in fig. 5, the first surface 31 and the second surface 32 are each configured as a folded surface that intersects the main optical axis 40 of the condenser lens 4. Of course, in other embodiments of the present disclosure, the first surface 31 may be configured such that: extending first upwards (in the direction of the plane of the figures 4 and 5) from the light-blocking edge 30 in a plane perpendicular to the main optical axis 40 and then extending backwards and intersecting the wall of the light-reflecting cavity. In other embodiments of the present disclosure, the second surface 32 may be configured such that: first extending backwards from the light-blocking edge 30 with a fold plane parallel to the main optical axis 40 and then extending upwards and intersecting the wall of the light-reflecting cavity. Of course, the first and second surfaces 31, 32 may be configured in any desired and suitable manner without departing from the inventive concepts of the present disclosure, which is not specifically limited by the present disclosure.

It should be noted that the present disclosure does not limit the manufacturing process of the reflector 2 and the light barrier 3, for example, in the embodiment shown in fig. 4, the reflective cavity has a wall surface covered by the light barrier 3, so that the wall surface may have any shape, and even in the manufacturing process in which the reflector 2 and the light barrier 3 are integrally formed by the same material, the wall surface may not actually exist.

Alternatively, the light-blocking body 3 may be made of a light-impermeable material. Thus, the second surface 32 of the light-blocking body 3 is opaque and can block light from propagating along its original propagation path.

Alternatively, the light blocking body 3 may also be made of a light transmissive material, and the first surface 31 or the second surface 32 is covered with a light opaque layer. Thus, no light rays impinging on the second surface 32 of the light-blocking body 3 can propagate outward through the light-blocking body 3.

Alternatively, the second surface 32 may be covered with a light-impermeable layer, which is a highly reflective layer. In this way, the second surface 32 can reflect the light to the reflective surface of the reflective cavity or directly reflect the light to irradiate the condensing lens 4, so as to reduce the loss of the light. For example, the highly reflective opaque layer can be a metallic reflective coating made of silver or aluminum material; in other embodiments, the light blocking body 3 can also be made of a highly reflective material directly.

In addition, the reflector 2 can be made of a highly reflective material, or can be made of other transparent or opaque materials, and then, a reflective surface of the reflective cavity is coated with a corresponding highly reflective coating, such as the above-mentioned metal reflective coating. The light blocking body 3 and the light reflecting body 2 may be made of the same material, or different materials, and when the used manufacturing materials cannot make the body of the light blocking body 3 and the body of the light reflecting body 2 have the corresponding light blocking and light reflecting functions, corresponding coatings may be added as described above, and details are not repeated here. In addition, when different materials are used to make the light blocking body 3 and the light reflecting body 2, the two should be integrated by corresponding production processes.

According to some embodiments of the present disclosure, the second surface 32 may extend parallel to the main optical axis 40. Thus, the light reflected from the second surface 32 is uniformly distributed, which is beneficial to forming a clear cut-off line. Here, the main optical axis 40 of the condenser lens 3 is parallel to the front-rear direction.

According to some embodiments of the present disclosure, as shown in fig. 2, the light blocking edge 30 is configured in a Z-shape, including two parallel sections that are parallel and staggered, and an oblique section connected between the two parallel sections, the oblique section being obtuse in two staggered angles formed between the two parallel sections. Thus, by the shielding of the light blocking edge 30, a cut-off line meeting the regulation is formed in the illumination area projected outwards by the light emitted by the light source 1 passing through the condenser lens 4 to distinguish a bright area from a dark area, thereby avoiding glare to drivers or pedestrians facing to a vehicle.

In addition, when the second surface 32 extends parallel to the main optical axis 40, any cross-sectional shape of the second surface 32 along the main optical axis 40 perpendicular to the condenser lens 4 can be made to be the aforementioned Z shape, the aforementioned light-blocking edge 30 coincides with the second surface 32, and the second surface 32 both blocks light and enables all light rays irradiated on the second surface 32 to be formed with a cut-off line meeting the regulation in an illumination area after being emitted from the condenser lens 4, which is beneficial to forming a clear cut-off line.

According to some embodiments of the present disclosure, as shown in fig. 2, the front surface of the reflector 2 is a plane, and the first surface 31 is continuous with and configured as a plane with the front surface of the reflector 2. Like this, the body that is in the light 3 does not stretch out the reflection of light chamber of the reflector body 2 in the front end, and easy to assemble condensing lens 4, and do benefit to and reduce the passing lamp size in the front and back direction, moreover, when reflector body 2 and the body that is in the light 3 integrated into one piece, convenient preparation.

The condenser lens 4 may be connected to the front end of the opening in any suitable manner, and according to some embodiments of the present disclosure, the condenser lens 4 blocks the opening at the front end of the reflective cavity, and the rear surface of the condenser lens 4 is a flat surface and is attached to the front end surface and the first surface 31 of the reflector 2. In this way, it is beneficial to reduce the dimension of the entire low beam in the front-rear direction. Alternatively, the first surface 31 and the front end face of the reflector 2 and the rear surface of the condenser lens 4 can be bonded together by the adhesive, so that seamless connection between the first surface 31 and the rear surface of the reflector 2 is realized, and of course, the rear surface of the condenser lens 4 and the front end face of the reflector 2 and the first surface 31 can be seamlessly attached by other connection modes, so that the light is prevented from being emitted from the matching gap, and the emission effect of the light is prevented from being influenced.

Alternatively, one focal point of the condenser lens 4 is located on the plane of the first surface 31. Here, the condensing lens 4 may have a focus on at least one of front and rear sides thereof, and the focus may be located on a surface where the first surface 31 is located, so that the light emitted from the condensing lens 4 may be uniformly distributed, and a clear image point may be obtained on a light distribution screen at a distance of twenty-five meters.

According to some embodiments of the present disclosure, as shown in fig. 2 to 4, the light-reflecting cavity is closed at the rear end and has a bottom wall surface 22, the light source 1 is fixed on the bottom wall surface 22, and the second surface 32 intersects with the bottom wall surface 22. The second surface 32 may extend from the bottom wall surface 22 forward to the open front end to intersect the first surface 31, such that the second surface 32 divides the light-reflecting cavity of the light-reflecting body 2 into two parts, i.e. one part is filled with the light-blocking body 3, the other part accommodates the light source 1, and the inner wall of the part forms a reflecting surface for reflecting light emitted by the light source 1. The light source 1 is fixed on the bottom wall surface 22, so that the light source 1 is convenient to mount, supporting parts are omitted, the structure of the dipped headlight is simplified, the size and the weight are reduced, and production steps are reduced.

According to some embodiments of the present disclosure, as shown in fig. 2 to 4, the light source 1 has a light emitting surface parallel to the bottom wall surface 22 and perpendicular to the main optical axis 40 of the condenser lens 4. Therefore, the light-emitting surface faces the front end opening, the incident angle of the light irradiating the light-reflecting surface of the light-reflecting cavity can be ensured to be larger, and further the incident angle of the light incident on the condensing lens 4 is ensured to be larger, so that a low beam illumination area meeting the regulation is formed.

According to some embodiments of the present disclosure, as shown in fig. 2 to 4, the light reflecting cavity includes a sidewall surface in a circumferential direction, the second surface 32 intersects the sidewall surface to divide the sidewall surface into two parts, one of the parts is opposite to the second surface 32, the part is covered with a highly reflective layer to form the light reflecting sidewall surface 21, the bottom wall surface 22 is covered with a highly reflective layer, and the light reflecting surface includes at least the bottom wall surface 22 and the light reflecting sidewall surface 21. Thus, the light source 1 is disposed on the bottom wall surface 22, and the emitted light can be reflected by the bottom wall surface 22 and the light reflecting side wall surface 21, so that the light utilization rate can be improved. The highly reflective layer may be a highly reflective metal coating. While the second surface 32 can block the light from passing through and is suitably shaped to form the light blocking edge 30, so that a regulatory cut-off is formed in the illuminated area after the light has passed through the condenser lens 4.

In order to allow the light once reflected by the reflective sidewall surface 21 to reach the condenser lens 4, and reduce the light loss, according to some embodiments of the present disclosure, as shown in fig. 4, the reflective sidewall surface 21 may be configured as a tapered surface gradually expanding from the rear to the front, and the central axis of the tapered surface is collinear with the main optical axis 40 of the condenser lens 4. Thus, the incident angle of the light reflected by the reflecting wall surface 21 when entering the condenser lens 4 can be increased, so that the brightness of the light emitted from the low beam lamp is uniform in both the bright area and the dark area. Note that, here, the main optical axis 40 of the condenser lens 4 is parallel to the front-rear direction.

Alternatively, as shown in fig. 3, the light reflecting sidewall surface 21 has an elliptical arc shape in a cross section perpendicular to the main optical axis 40, with a center point of the elliptical arc shape located on the main optical axis 40. Thus, the emergent light after being refracted by the condenser lens 4 can be distributed in an elliptical shape, and the light distribution is uniform.

According to some embodiments of the present disclosure, the light source 1 may be an LED light source, which can prolong the service life of the dipped headlight, and the LED light source has a simple structure, good vibration resistance, a small volume, and is convenient for designing the dipped headlight.

According to a second aspect of the present disclosure, there is provided a vehicle having the vehicle low beam described above. Based on foretell vehicle passing lamp simple structure, reduced the part that needs the equipment, and then reduced the fault probability to make the convenient maintenance of the car light of this vehicle, but also can reduce the maintenance number of times.

The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.

It should be noted that, in the foregoing embodiments, various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various combinations that are possible in the present disclosure are not described again.

In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.

Claims (17)

1. The utility model provides a vehicle low-beam light, its characterized in that, vehicle low-beam light includes light source (1), reflector (2), the body (3) that is in the light and collector lens (4), reflector (2) are formed with the reflection of light chamber, and this reflection of light chamber has relative front end and rear end, the front end has the opening, collector lens (4) set up in the front end just right to the opening, light source (1) set up in the rear end, the body (3) that is in the light with reflector (2) integrated into one piece, and the structure is so that the light that light source (1) sent passes be formed with the light and shade cutoff line in the illumination zone that collector lens (4) outwards throw out to eliminate the glare.

2. A vehicle low beam lamp as claimed in claim 1, characterized in that the light-blocking body (3) is arranged in the reflector cavity and extends from the reflector body (2) towards the opening and towards a main optical axis (40) of the condenser lens (4), the surface of the light-blocking body (3) is divided into a first surface (31) and a second surface (32), part of the light rays emitted by the light source (1) impinge directly on and/or impinge on the second surface (32) after being reflected by the reflector surface of the reflector cavity,

the first surface (31) and the second surface (32) intersecting in the opening at the front side of the light barrier (3) to form a light barrier edge (30), and the projection of the second surface (32) in a direction parallel to the main optical axis being entirely located in the projection of the first surface (31) in a direction parallel to the main optical axis, the light barrier edge (30) defining the cut-off line,

all the circumferential edges of the first surface (31) and the second surface (32) except the light blocking edge (30) are connected with the reflector (2),

at least one of the first surface (31) and the second surface (32) is light-tight.

3. A vehicle passing headlight according to claim 2, characterized in that the light barrier (3) is made of a light-impermeable material.

4. A vehicle passing headlight according to claim 2, characterized in that the light barrier (3) is made of a light transmitting material, the first surface (31) or the second surface (32) being covered with a light non-transmitting layer.

5. A vehicle low beam lamp as claimed in claim 4, characterized in that the second surface (32) is covered with a light-impermeable layer, which is a highly reflective layer.

6. A vehicle low beam lamp as claimed in claim 2, characterized in that the second surface (32) extends parallel to the main optical axis (40).

7. A vehicle low beam according to claim 2, characterized in that the light-blocking edge (30) is Z-shaped, comprising two parallel sections which are parallel and staggered, and an oblique section which connects between the two parallel sections, the two stagger angles formed between the oblique section and the two parallel sections being obtuse angles.

8. A vehicle low beam according to claim 2, characterized in that the front end face of the reflector (2) is plane, the first surface (31) being continuous with and configured as one plane with the front end face of the reflector (2).

9. A vehicle low beam according to claim 8, characterized in that the condenser lens (4) closes off the opening at the front end of the reflector cavity, the rear surface of the condenser lens (4) being plane and abutting on the front end surface of the reflector body (2) and the first surface (31).

10. A vehicle passing headlight according to claim 9, wherein a focal point of the condenser lens (4) is located on the plane of the first surface (31).

11. A vehicle low beam according to claim 2, characterized in that the reflector cavity is closed at the rear end and has a bottom wall surface (22), the light source (1) being fixed to the bottom wall surface (22), the second surface (32) intersecting the bottom wall surface (22).

12. A vehicle low beam lamp as claimed in claim 11, characterized in that the light source (1) has a light-emitting surface which is parallel to the bottom wall surface (22) and perpendicular to a main optical axis (40) of the condenser lens (4).

13. A vehicle low beam according to claim 11, characterized in that the reflector cavity comprises a side wall surface in the circumferential direction, the second surface (32) intersects the side wall surface to divide the side wall surface into two parts, one of which faces the second surface (32), which is covered with a highly reflective layer to form a reflective side wall surface (21), the bottom wall surface (22) is covered with a highly reflective layer, and the reflective surface comprises at least the bottom wall surface (22) and the reflective side wall surface (21).

14. A vehicle low beam according to claim 13, characterized in that the reflecting side wall surface (21) is configured as a conical surface diverging from back to front, the central axis of which is collinear with the main optical axis (40) of the condenser lens (4).

15. A vehicle low beam lamp as claimed in claim 14, characterized in that the cross section of the light-reflecting side wall surface (21) perpendicular to the main optical axis (40) is in the shape of an elliptical arc, the center point of which is located on the main optical axis (40).

16. A vehicle low beam according to any of claims 1-15, characterized in that the light source (1) is an LED light source.

17. A vehicle having a vehicle low beam as claimed in any one of claims 1 to 16.

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