JP7028617B2 - Vehicle lighting - Google Patents

Description

The present invention relates to a vehicle lamp.

For example, vehicle lighting equipment such as vehicle headlamps has a light source, a reflector that reflects the light emitted from the light source toward the vehicle traveling direction, and a part of the light reflected by the reflector to block light. It is equipped with a shade that (cuts) and a projection lens that projects light partially cut by the shade toward the vehicle traveling direction.

In such a vehicle lamp, a light source image defined by the front end of the shade is inverted and projected by a projection lens as a passing beam (low beam) to form a low beam light distribution pattern including a cut-off line at the upper end. There is.

In addition, in vehicle lighting equipment, another light source that emits light in the direction of travel of the vehicle is placed below the shade, and the light emitted by this light source is projected by a projection lens as a traveling beam (high beam). , A high beam light distribution pattern is formed above the low beam light distribution pattern.

By the way, since the light source unit forming the above-mentioned low beam light distribution pattern and the light source unit forming the high beam light distribution pattern have different light emission directions, they are configured separately from each other.

Therefore, in order to reduce the cost by omitting the number of parts and simplifying the assembly process, the development of a vehicle lamp that integrates these light source units is underway (see, for example, Patent Document 1 below). ..

Specifically, in Patent Document 1 below, in a vehicle lighting fixture using a light emitting element as a light source, a projection lens arranged on an optical axis extending in the front-rear direction of the lamp and a first projection lens arranged behind the projection lens. The first light source unit is provided with a first light source unit and a first light source unit arranged in the vicinity of the optical axis on the rear side of the rear focal point of the projection lens, and the first light source unit. A first reflector arranged so as to cover from the upper side and configured to reflect the light from the first light source element toward the front of the lamp toward the optical axis, and one of the reflected light from the first reflector. The second light source unit comprises a first mirror member having an upward reflecting surface extending rearward along the optical axis from the vicinity of the rear focal point so as to reflect the portion upward, and the second light source unit reflects upward. A second mirror member having a downward reflecting surface extending diagonally downward from the front edge of the surface toward the rear side of the lamp, a second light source element arranged below the optical axis, and light from the second light source element. Disclosed is a vehicle lighting fixture comprising a second reflector configured to reflect upward and substantially converge to a portion near the rear focal point on the downward reflecting surface.

Japanese Patent No. 4413762

By the way, in the above-mentioned vehicle lamps, it is required to make the projection lens smaller in order to meet the demand for miniaturization which is a trend in recent years. However, when the projection lens is made smaller, the focal length of this projection lens becomes shorter.

In this case, due to the limitation of the size of the projection lens, the magnification in the vertical direction (height direction) becomes large, so that the illuminance in front of the high beam light distribution pattern becomes too high. On the other hand, when the enlargement ratio in the horizontal direction (width direction) becomes small, the spread of the low beam light distribution pattern becomes too small.

In addition, when the projection lens is miniaturized, the shape of the incident surface must be designed in consideration of the intake of light that forms the light distribution pattern for the high beam, otherwise the light incident from the incident surface cannot reach the exit surface and the light Utilization efficiency will decrease.

The present invention has been proposed in view of such conventional circumstances, and an object of the present invention is to provide a lamp for a vehicle capable of obtaining a good light distribution pattern and improving the efficiency of light utilization. do.

In order to achieve the above object, the present invention provides the following means.
[1] A first light source that emits the first light, a first reflector that reflects the first light toward the lower side in the vehicle traveling direction, and the first reflector reflected by the first reflector. A first light source unit including a first reflecting portion that reflects a part of the light of 1 toward the upper side in the traveling direction of the vehicle, and a first light source unit.
A second light source that is arranged below the first light source unit and emits the second light, and a second light that reflects the second light toward the upper side in the direction opposite to the vehicle traveling direction. A second light source unit including a reflector and a second reflecting portion that reflects a part of the second light reflected by the second reflector toward the lower side in the vehicle traveling direction.
A projection lens arranged in front of the first light source unit and the second light source unit and projecting the first light and the second light toward the traveling direction of the vehicle is provided.
The projection lens has an incident surface on which the first light and the second light are incident and an exit surface on which the first light and the second light are emitted toward the vehicle traveling direction. It has a configuration arranged in this order,
The incident surface is composed of a lens surface that condenses the first light and the second light in the horizontal direction.
The emission surface is composed of a lens surface that collects the first light and the second light in the vertical direction .
The first light source is located behind the posterior focal point of the lens surface constituting the incident surface.
The posterior focal point of the lens surface constituting the exit surface is located between the posterior focal point of the lens surface constituting the incident surface and the first light source.
The first reflector opens forward, curves in a cross section along the vertical direction to draw a parabola with the first light source as the focal point, and in a cross section along the horizontal direction. It has a reflective surface curved so as to surround the circumference of the first light source.
The second reflector opens upward, curves in a cross section along the vertical direction to draw a parabolic focus with the second light source, and in a cross section along the horizontal direction. The second light source has a reflecting surface curved so as to surround the periphery of the second light source, and the second light reflected by the reflecting surface is directed toward the rear focal point of the lens surface constituting the incident surface. A vehicle lighting device characterized by being set to collect light .
[2] The vehicle lamp according to the above [1], wherein the first reflecting portion is provided in the vicinity of the rear focal point of the lens surface constituting the emitting surface.
[ 3 ] The first light projected by the projection lens forms a first light distribution pattern including a cut-off line defined by the front end of the first reflecting portion.
[1] or [2] , wherein the second light projected by the projection lens forms a second light distribution pattern located above the first light distribution pattern. The vehicle lighting equipment described .
[4] The vehicle lamp according to any one of the above [1] to [3], wherein the incident surface has a cylindrical shape or a toric shape.
[5] The vehicle lamp according to any one of the above [1] to [4], wherein the emission surface has a cylindrical shape or a toric shape.
[6] The vehicle lamp according to any one of the above [1] to [5], wherein the first reflecting portion and the second reflecting portion are integrally formed.

As described above, according to the present invention, it is possible to provide a lamp for a vehicle capable of obtaining a good light distribution pattern and increasing the efficiency of light utilization.

It is sectional drawing which shows the structure of the lamp for vehicle which concerns on one Embodiment of this invention. It is a top view which shows the structure of the lamp for a vehicle shown in FIG. The configuration of the projection lens included in the vehicle lamp shown in FIG. 1 is shown, (a) is a vertical sectional view thereof, and (b) is a horizontal sectional view thereof. The configuration of the projection lens as a comparative example is shown, (a) is a vertical sectional view thereof, and (b) is a horizontal sectional view thereof. It is a schematic diagram which shows the light distribution pattern formed on the surface of the virtual vertical screen by the 1st light in the vehicle lighting equipment shown in FIG. 1. It is a schematic diagram which shows the light distribution pattern formed on the surface of the virtual vertical screen by the 2nd light in the vehicle lighting equipment shown in FIG. 1. In the comparative example shown in FIG. 4, it is a schematic diagram which shows the light distribution pattern formed on the surface of the virtual vertical screen by the first light. In the comparative example shown in FIG. 4, it is a schematic diagram which shows the light distribution pattern formed on the surface of the virtual vertical screen by the 2nd light.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
In the drawings used in the following description, in order to make each component easier to see, the scale of the dimensions may be different depending on the component, and the dimensional ratio of each component may not be the same as the actual one. do not have.

As an embodiment of the present invention, for example, the vehicle lamp 1 shown in FIGS. 1, 2 and 3 (a) and 3 (b) will be described. Note that FIG. 1 is a cross-sectional view showing the configuration of the vehicle lamp 1. FIG. 2 is a plan view showing the configuration of the vehicle lamp 1. FIG. 3A is a vertical cross-sectional view showing the configuration of the projection lens 4 included in the vehicle lamp 1. FIG. 3B is a horizontal cross-sectional view showing the configuration of the projection lens 4 included in the vehicle lamp 1. Further, in the drawings shown below, the XYZ Cartesian coordinate system is set, the X-axis direction is the front-rear direction of the vehicle lighting tool 1, the Y-axis direction is the width direction (horizontal direction) of the vehicle lighting tool 1, and the Z-axis direction is the vehicle. It shall be shown as the height direction (vertical direction) of the lamp 1.

In the vehicle lighting tool 1 of the present embodiment, as a vehicle headlight (headlight) mounted in front of the vehicle, a passing beam (low beam) and a traveling beam (high beam) are used in the vehicle traveling direction (+ X-axis direction). ) Is irradiated.

Specifically, as shown in FIGS. 1, 2 and 3 (a) and 3 (b), the vehicle lamp 1 includes a low beam (LB) light source unit (first light source unit) 2 and a high beam (1). A light source unit (second light source unit) 3 for HB) and a projection lens 4 are roughly provided. These are integrally attached to the housing 5 that serves as a heat sink.

Further, in the vehicle lamp 1, the heat generated in the light source units 2 and 3 is dissipated from the housing (heat sink) 5 while being blown by a cooling fan (not shown) to cool the light source units 2 and 3. It is carried out.

The LB light source unit 2 emits a first light source 6 that emits a first light L1 that becomes a passing beam (low beam), and a first light L1 that is downward (−Z axis) in the vehicle traveling direction (+ X axis direction). A part of the first reflector 7 reflected toward the (direction) side and the first light L1 reflected by the first reflector 7 is moved upward (+ Z-axis direction) side in the vehicle traveling direction (+ X-axis direction). It has a first reflecting unit 8 that reflects toward it.

The first light source 6 is composed of, for example, a chip LED (SMD LED) that emits white light. Further, as the chip LED, a high output type for vehicle lighting is used. The first light source 6 is attached to the upper surface 5a of the housing 5 via a heat conductive grease (not shown). As a result, the first light source 6 emits the first light L1 radially upward (in the + Z axis direction).

In addition to the above-mentioned LED, a light emitting element such as a laser diode (LD) can be used for the first light source 6. Further, a light source other than the above-mentioned light emitting element may be used. Further, the number of light emitting elements is not limited to one, and may be plural.

The first reflector 7 is made of a reflective member such as aluminum die-cast. The first reflector 7 is attached to the upper surface 5a of the housing 5 so as to cover the upper part of the first light source 6. As a result, the surface (inner surface) of the first reflector 7 facing the first light source 6 is designated as the reflection surface 7a.

The reflective surface 7a of the first reflector 7 has a first cross section (X-axis cross section) along the front-rear direction (X-axis direction) from the base end (rear end) side to the tip end (front end) side. It is curved so as to draw a parabola with the center (light emitting point) of the light source 6 of the above as the focal point. As a result, the first reflector 7 reflects the first light L1 emitted from the first light source 6 toward the lower side (−Z axis direction) of the vehicle traveling direction (+ X axis direction) by the reflecting surface 7a. do.

Further, the reflective surface 7a of the first reflector 7 surrounds the first light source 6 excluding the vehicle traveling direction (+ X-axis direction) in the cross section (Y-axis cross section) along the width direction (Y-axis direction). It is curved so as to surround it. As a result, the first reflector 7 collects the first light L1 emitted from the first light source 6 in the horizontal direction (Y-axis direction) by the reflecting surface 7a, and in the vehicle traveling direction (+ X-axis direction). Reflects toward the lower side (-Z axis direction) of.

The first reflecting portion 8 is composed of an upper surface 5a (a part of the housing 5) of the housing 5. Further, the tip end (front end) of the first reflecting portion 8 functions as a shade 8a that shields (cuts) a part of the first light L1 reflected by the first reflector 7. The shade 8a is set in the vicinity of the rear focal point (hereinafter, referred to as the exit surface side focal point) F1 of the lens surface constituting the emission surface 4b of the projection lens 4, which will be described later.

The first reflecting portion 8 has an upward reflecting surface 8b extending from the shade 8a in a direction opposite to the vehicle traveling direction (-X-axis direction). As a result, the upward reflecting surface 8b of the first reflecting portion 8 has a part of the first light L1 reflected by the first reflector 7 on the upper side (+ Z axis direction) of the vehicle traveling direction (+ X axis direction). Reflects towards.

The HB light source unit 3 is arranged below the LB light source unit 2. The HB light source unit 3 emits a second light L2 that becomes a traveling beam (high beam), and the second light L2 is directed in the direction opposite to the vehicle traveling direction (-X-axis direction). A part of the second reflector 10 reflected toward the upper side (+ Z-axis direction) and the second light L2 reflected by the second reflector 10 is below (-Z) in the vehicle traveling direction (+ X-axis direction). It has a second reflecting portion 11 that reflects toward the (axial direction) side.

The second light source 9 is composed of, for example, a chip LED (SMD LED) that emits white light. Further, as the chip LED, a high output type for vehicle lighting is used. The second light source 9 is attached to the front surface 5b of the housing 5 via heat conductive grease (not shown). The front surface 5b of the housing 5 is inclined toward the lower side (-Z-axis direction) in the direction opposite to the vehicle traveling direction (-X-axis direction). As a result, the second light source 9 radially emits the second light L2 toward the lower side (-Z-axis direction) in the direction opposite to the vehicle traveling direction (-X-axis direction).

In addition to the above-mentioned LED, a light emitting element such as a laser diode (LD) can be used for the second light source 9. Further, a light source other than the above-mentioned light emitting element may be used. Further, the number of light emitting elements is not limited to one, and may be plural.

The second reflector 10 is made of a reflective member such as aluminum die-cast. The second reflector 10 is attached to the front surface 5b of the housing 5 so as to cover the lower part of the second light source 9. As a result, the surface (inner surface) of the second reflector 10 facing the second light source 9 is designated as the reflection surface 10a.

The second reflector 10 is a second reflected by the reflecting surface 10a in the vicinity of the rear focal point (hereinafter referred to as the incident surface side focal point) F2 of the lens surface constituting the incident surface 4a of the projection lens 4, which will be described later. The light L2 is set to be focused. Further, the distance from the second light source 9 to the focal point F2 on the incident surface side is shorter than the distance from the first light source 6 to the focal point F1 on the exit surface side.

The reflection surface 10a of the second reflector 10 has a second cross section (X-axis cross section) along the front-rear direction (X-axis direction) from the base end (rear end) side to the tip end (front end) side. It is curved so as to draw a parabola centered on the center (emission point) of the light source 9 of the above. As a result, the second reflector 10 transmits the second light L2 emitted from the second light source 9 to the upper side (+ Z axis direction) in the direction opposite to the vehicle traveling direction (−X axis direction) by the reflecting surface 10a. Reflects towards.

Further, the reflective surface 10a of the second reflector 10 surrounds the second light source 9 excluding the vehicle traveling direction (+ X-axis direction) in the cross section (Y-axis cross section) along the width direction (Y-axis direction). It is curved so as to surround it. As a result, the second reflector 10 collects the second light L2 emitted from the second light source 9 in the horizontal direction (Y-axis direction) by the reflecting surface 10a, and in the direction opposite to the vehicle traveling direction (the direction in which the vehicle travels). Reflects toward the upper side (+ Z-axis direction) of -X-axis direction).

The second reflecting portion 11 is composed of the front surface 5b (a part of the housing 5) of the housing 5. That is, the first reflecting portion 8 and the second reflecting portion 11 are integrally formed by the housing 5. The second reflecting portion 11 has a downward reflecting surface 11a extending downward (-Z-axis direction) in the direction opposite to the vehicle traveling direction (-X-axis direction) from the shade 8a (the tip of the first reflecting portion 8). Have. The incident surface side focal point F2 is set in the vicinity of the upper end (shade 8a) of the downward reflecting surface 11a.

As a result, the downward reflecting surface 11a of the second reflecting portion 11 makes a part of the second light L2 reflected by the second reflector 8 downward (−Z axis direction) in the vehicle traveling direction (+ X axis direction). It reflects toward the side.

The projection lens 4 is arranged in front of the LB light source unit 2 and the HB light source unit 3, and projects the first light L1 and the second light L2 toward the vehicle traveling direction (+ X-axis direction). As the projection lens 4, a material having a refractive index higher than that of air, such as transparent resin such as polycarbonate or acrylic or glass, can be used.

The projection lens 4 emits an incident surface 4a on which the first light L1 and the second light L2 are incident, and the first light L1 and the second light L2 toward the vehicle traveling direction (+ X-axis direction). The exit surface 4b has a configuration in which the emission surfaces 4b are arranged in this order.

The incident surface 4a is located on the rear end (rear surface) side of the projection lens 4, and directs the first light L1 and the second light L2 incident on the inside of the projection lens 4 from the incident surface 4a in the horizontal direction (Y). It is configured as a cylindrically shaped lens surface extended in the vertical direction (Z-axis direction) so as to collect light in the axial direction).

The incident surface 4a is not limited to the above-mentioned cylindrical lens surface, and may be a toric lens surface curved in the vertical direction (Z-axis direction). In this case, the first light L1 and the second light L2 incident on the incident surface 4a can be focused not only in the horizontal direction (Y-axis direction) but also in the vertical direction (Z-axis direction). Is.

The emission surface 4b is located on the front end (front surface) side of the projection lens 4, and directs the first light L1 and the second light L2 emitted from the emission surface 4b to the outside of the projection lens 4 in the vertical direction (Z). It is configured as a cylindrically shaped lens surface extended in the horizontal direction (Y-axis direction) so as to collect light in the axial direction).

The exit surface 4b is not limited to the above-mentioned cylindrical lens surface, and may be a toric lens surface curved in the horizontal direction (Y-axis direction). In this case, the first light L1 and the second light L2 emitted from the emission surface 4b are not only focused in the vertical direction (Z-axis direction) but also focused and diffused in the horizontal direction (Y-axis direction). It is possible.

Further, in the projection lens 4, the focal length of the emission surface 4b (the distance from the center of the projection lens 4 to the focal length F1 on the exit surface side) f1 is the focal length of the incident surface 4a (the focal length F2 on the incident surface side from the center of the projection lens 4). Distance to) is longer than f2.

In the vehicle lamp 1 of the present embodiment having the above configuration, when the LB light source unit 2 is lit, the first light L1 emitted from the first light source 6 is reflected by the first reflector 7 and the first reflector. After being reflected by the unit 8, the light source image formed in the vicinity of the focal point F1 on the emission surface side of the projection lens 4 is inverted and projected by the projection lens 4. As a result, the first light L1 projected from the projection lens 4 toward the vehicle traveling direction (+ X-axis direction) is a low beam including a cut-off line defined by the shade 8a at the upper end thereof as a passing beam (low beam). A light distribution pattern for (LB) (first light distribution pattern) is formed.

On the other hand, in the vehicle lamp 1 of the present embodiment, when the HB light source unit 3 is lit, the second light L2 emitted from the second light source 9 is reflected by the second reflector 10 and the second reflecting unit 11. After that, it is projected by the projection lens 4. As a result, the second light L2 projected from the projection lens 4 toward the vehicle traveling direction (+ X-axis direction) is a high beam (HB) located above the LB light distribution pattern as a traveling beam (high beam). ) Light distribution pattern (second light distribution pattern) is formed.

By the way, in the vehicle lighting tool 1 of the present embodiment, since the first light L1 is focused in the vertical direction (Z-axis direction) by the emission surface 4b of the projection lens 4 described above, it is enlarged in the width direction (Y-axis direction). It is possible to form an optimum light distribution pattern for LB having a large ratio and a small enlargement ratio in the height direction (Z-axis direction).

Further, in the vehicle lamp 1 of the present embodiment, since the second light L2 is focused in the horizontal direction (Y-axis direction) by the incident surface 4a of the projection lens 4 described above, the second light with respect to the incident surface 4a is collected. The uptake efficiency of L2 will be improved. This makes it possible to increase the utilization efficiency of the second light L2 that forms the light distribution pattern for HB.

Here, as a vehicle lamp as a comparative example, a case where the entrance surface 4a and the emission surface 4b of the projection lens 4 are shaped as shown in FIGS. 4A and 4B will be illustrated. Note that FIG. 4A is a vertical cross-sectional view showing the configuration of the projection lens 4 as a comparative example. FIG. 4B is a horizontal cross-sectional view showing the configuration of the projection lens 4 as a comparative example.

In the projection lens 4 as a comparative example, the incident surface 4a constitutes a spherical convex lens surface, and the exit surface 4b constitutes a spherical convex lens surface. Further, in the projection lens 4 as a comparative example, the focal length f1 of the exit surface 4b is shorter than the focal length f2 of the incident surface 4a.

In the vehicle lamp 1 of the present embodiment, the light source when the first light L1 and the second light L2 to be irradiated in front of the projection lens 4 are projected onto the virtual vertical screen facing the projection lens 4. The images (light distribution pattern for LB and light distribution pattern for HB) are shown in FIGS. 5 and 6.

Note that FIG. 5 is a schematic diagram of the LB light distribution pattern formed on the surface of the virtual vertical screen by the first light L1 in the vehicle lighting tool 1 of the present embodiment. FIG. 6 is a schematic diagram showing a light distribution pattern for HB formed on the surface of a virtual vertical screen by the second light L2 in the vehicle lamp 1 of the present embodiment.

Similarly, using the projection lens 4 as a comparative example, the first light L1 and the second light L2 irradiated in front of the projection lens 4 are emitted to the virtual vertical screen facing the projection lens 4. The light source images (LB light distribution pattern and HB light distribution pattern) when projected are shown in FIGS. 7 and 8.

Note that FIG. 7 is a schematic diagram of an LB light distribution pattern formed on the surface of the virtual vertical screen by the first light L1 when the projection lens 4 as a comparative example is used. FIG. 8 is a schematic diagram showing a light distribution pattern for HB formed on the surface of the virtual vertical screen by the second light L2 when the projection lens 4 as a comparative example is used.

In the vehicle lamp 1 of the present embodiment, as shown in FIG. 5, the LB light distribution pattern is expanded, and the distant visibility and the front illuminance are appropriate. On the other hand, when the projection lens 4 as a comparative example shown in FIG. 7 is used, the spread of the light distribution pattern for LB is insufficient, and the distant visibility and the front illuminance are too high.

Further, in the vehicle lamp 1 of the present embodiment, as shown in FIG. 6, it is possible to improve the utilization efficiency of the second light L2 forming the light distribution pattern for HB. On the other hand, when the projection lens 4 as a comparative example shown in FIG. 8 is used, the light distribution pattern for HB is expanded and the light distribution pattern for HB is expanded due to the influence that the utilization efficiency of the second light L2 forming the light distribution pattern for HB is lowered. Insufficient distant visibility.

As described above, in the vehicle lamp 1 of the present embodiment, the LB light source unit 2 and the HB light source unit 3 are integrated, and even when the projection lens 4 is miniaturized, a good LB light distribution pattern and HB light distribution pattern are used. It is possible to obtain a light distribution pattern and improve the utilization efficiency of the first light L1 and the second light L2 forming the LB light distribution pattern and the HB light distribution pattern.

The present invention is not necessarily limited to that of the above embodiment, and various modifications can be made without departing from the spirit of the present invention.
For example, in the vehicle lamp 1, the LB light source unit 2 and the HB light source unit 3 may be configured such that light emitting elements such as LEDs, for example, called direct projection, are arranged side by side.

Further, in the vehicle lamp 1 described above, in the HB light source unit 3, light emitting elements such as LEDs are arranged side by side, and the lighting of each light emitting element is switched to variably control the light distribution of the second light L2. It is also possible to use an optical variable headlamp (ADB: Adaptive Driving Beam). ADB is a technology that recognizes a vehicle in front, an oncoming vehicle, a pedestrian, etc. with an in-vehicle camera and expands the front view of the driver at night without giving glare to the driver or pedestrian in front.

Further, in the vehicle lighting tool 1, the HB light source unit 3 is arranged below the LB light source unit 3, but the configuration is not necessarily limited to such a configuration, and for example. It is also possible to arrange the second light source 9 above the first light source 6 and to reflect the second light toward the second reflecting portion 11 by the second reflector 10.

1 ... Vehicle lighting 2 ... Low beam (LB) light source unit (first light source unit) 3 ... High beam (HB) light source unit (second light source unit) 4 ... Projection lens 4a ... Incident surface 4b ... Emission surface 5 ... Housing 6 ... First light source 7 ... First reflector 8 ... First reflector 9 ... Second light source 10 ... Second reflector 11 ... Second reflector L1 ... First light L2 ... First 2 light

Claims (6)

A first light source that emits a first light, a first reflector that reflects the first light downward in the vehicle traveling direction, and the first light reflected by the first reflector. A first light source unit including a first reflecting portion that reflects a part of the light toward the upper side in the traveling direction of the vehicle, and a first light source unit.
A second light source that is arranged below the first light source unit and emits the second light, and a second light that reflects the second light toward the upper side in the direction opposite to the vehicle traveling direction. A second light source unit including a reflector and a second reflecting portion that reflects a part of the second light reflected by the second reflector toward the lower side in the vehicle traveling direction.
A projection lens arranged in front of the first light source unit and the second light source unit and projecting the first light and the second light toward the traveling direction of the vehicle is provided.
The projection lens has an incident surface on which the first light and the second light are incident and an exit surface on which the first light and the second light are emitted toward the vehicle traveling direction. It has a configuration arranged in this order,
The incident surface is composed of a lens surface that condenses the first light and the second light in the horizontal direction.
The emission surface is composed of a lens surface that collects the first light and the second light in the vertical direction .
The first light source is located behind the posterior focal point of the lens surface constituting the incident surface.
The posterior focal point of the lens surface constituting the exit surface is located between the posterior focal point of the lens surface constituting the incident surface and the first light source.
The first reflector opens forward, curves in a cross section along the vertical direction to draw a parabola with the first light source as the focal point, and in a cross section along the horizontal direction. It has a reflective surface curved so as to surround the circumference of the first light source.
The second reflector opens upward, curves in a cross section along the vertical direction to draw a parabolic focus with the second light source, and in a cross section along the horizontal direction. The second light source has a reflecting surface curved so as to surround the periphery of the second light source, and the second light reflected by the reflecting surface is directed toward the rear focal point of the lens surface constituting the incident surface. A vehicle lighting device characterized by being set to collect light . The vehicle lamp according to claim 1, wherein the first reflecting portion is provided in the vicinity of the rear focal point of the lens surface constituting the emitting surface. The first light projected by the projection lens forms a first light distribution pattern including a cutoff line defined by the front end of the first reflector.
The vehicle according to claim 1 or 2 , wherein the second light projected by the projection lens forms a second light distribution pattern located above the first light distribution pattern. Lighting equipment. The vehicle lamp according to any one of claims 1 to 3, wherein the incident surface has a cylindrical shape or a toric shape. The vehicle lamp according to any one of claims 1 to 4, wherein the emission surface has a cylindrical shape or a toric shape. The vehicle lamp according to any one of claims 1 to 5, wherein the first reflecting portion and the second reflecting portion are integrally formed.

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