JP2023148431A - Vehicular lighting fixture - Google Patents

Abstract

To provide a vehicular lighting fixture capable of efficiently utilizing light.SOLUTION: A vehicular lighting fixture includes: a first light source unit 10 including first light sources 13, 15, and first reflectors 14, 16 for reflecting the light from the first light sources 13, 15; a second light source unit 20 including second light sources 23, 25, and second reflectors 24, 26 for reflecting the light from the second light sources 23, 25; a projection lens 30 provided in common with respect to the first light source unit 10 and the second light source unit 20, forming a first pattern by radiating the light reflected by the first reflectors 14, 16 to a range containing a central region in front of a vehicle, and forming a second pattern different from the first pattern by radiating the light reflected by the second reflectors 24, 26 to the front of the vehicle; and an outer lens 50 for transmitting the light radiated from the projection lens 30. In the first light source unit 10, at least a part is arranged inside of the vehicle with respect to the second light source unit 20.SELECTED DRAWING: Figure 2

Description

The present invention relates to a vehicle lamp.

2. Description of the Related Art A vehicle lamp is known in which light emitted from a light source is emitted forward by a reflector and a projection lens, and passes through an outer lens to form a pattern in front of the vehicle (for example, see Patent Document 1).

International Publication No. 2020/025171

In the above-mentioned vehicle lamp, the outer lens may have a so-called slant shape in which the outer side of the vehicle is inclined or curved rearward, for example. When the outer lens has a slant shape, the light emitted forward by the projection lens may be internally reflected at the inclined or curved portion when passing through the outer lens. In this case, the light utilization efficiency will decrease. Therefore, a configuration that can efficiently utilize light is required.

The present invention has been made in view of the above, and an object of the present invention is to provide a vehicle lamp that can efficiently utilize light.

A vehicle lamp according to the present invention includes a first light source unit including a first light source and a first reflector that reflects light from the first light source, a second light source, and a first reflector that reflects light from the second light source. A second light source unit having a second reflector, which is provided in common to the first light source unit and the second light source unit, and which reflects light reflected by the first reflector in a range including a central area in front of the vehicle. a projection lens that irradiates light to form a first pattern, and irradiates light reflected by the second reflector to the front of the vehicle to form a second pattern different from the first pattern; an outer lens having a shape that is inclined or curved rearward toward the outside of the vehicle and transmitting light emitted from the projection lens, and the first light source unit and the second light source unit are attached to a support member. The first light source unit is provided, and at least a portion of the first light source unit is disposed on the inner side of the vehicle than the second light source unit.

In the above vehicle lamp, the first pattern may be a high beam pattern or an ADB pattern, and the second pattern may be a low beam pattern.

In the vehicle lamp described above, the second pattern may have a cutoff line, and the second reflector may have a cutoff forming part that forms the cutoff line at a rear end of the vehicle.

In the above-mentioned vehicle lamp, the first light source unit and the second light source unit each have a light condensing unit and a diffusion unit, and each of the first light source unit and the second light source unit has a light condensing unit. may be arranged inside the vehicle with respect to the diffusion unit.

In the vehicle lamp described above, from the inside of the vehicle to the outside of the vehicle, the light collecting unit of the first light source unit, the light collecting unit of the second light source unit, the diffusion unit of the second light source unit, and the first light source The units may be arranged in the order of the diffusion unit.

In the above-mentioned vehicle lamp, the outer lens is smaller than the inner portion by comparing an inner portion on the inside of the vehicle and an outer portion on the outer side of the vehicle with respect to the intersection of the second light source unit with the optical axis of the diffusion unit. Also, the outer portion may have a larger backwardly inclined angle or a larger backwardly curved curvature.

In the vehicle lamp described above, the diffusion unit may be arranged in front of the light condensing unit in each of the first light source unit and the second light source unit.

In the vehicle lamp described above, the diffusion unit of the second light source unit may be arranged further forward than the diffusion unit of the first light source unit.

In the vehicle lamp described above, the light condensing unit and the diffusion unit may be arranged so as to be aligned in the front and rear direction.

According to the present invention, it is possible to provide a vehicle lamp that can efficiently utilize light.

FIG. 1 is a schematic diagram showing an example of a vehicle lamp according to the present embodiment. FIG. 2 is an enlarged view of a part of FIG. 1. FIG. 3 is a diagram illustrating an example of a vehicle lamp viewed from the front. FIG. 4 is a diagram showing the configuration along the AA' cross section in FIG. 2. FIG. 5 is a diagram showing the configuration along the BB' cross section in FIG. 3. FIG. 6 is a diagram showing an example of a pattern irradiated to the front of the vehicle. FIG. 7 is a diagram showing an example of a pattern irradiated to the front of the vehicle. FIG. 8 is a diagram showing an example of a pattern irradiated to the front of the vehicle. FIG. 9 is a diagram showing a vehicle lamp according to a modified example. FIG. 10 is a diagram showing a vehicle lamp according to a modified example. FIG. 11 is a diagram showing an example of a pattern irradiated to the front of the vehicle.

DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of a vehicle lamp according to the present invention will be described based on the drawings. Note that the present invention is not limited to this embodiment. Furthermore, the constituent elements in the embodiments described below include those that can be easily replaced by those skilled in the art, or those that are substantially the same. In the following description, front and back, top and bottom, and left and right directions are directions when the vehicle lamp is mounted on the vehicle, and are directions when viewed from the driver's seat in the direction of travel of the vehicle. In addition, in this embodiment, the up-down direction is parallel to the vertical direction, and the left-right direction is assumed to be the horizontal direction.

FIG. 1 is a schematic diagram showing an example of a vehicle lamp 100 according to the present embodiment. FIG. 2 is an enlarged view of a part of FIG. 1. FIG. 3 is a diagram showing an example of the vehicle lamp 100 viewed from the front. FIG. 4 is a diagram showing the configuration along the AA' cross section in FIG. 2. FIG. 5 is a diagram showing the configuration along the BB' cross section in FIG. 3. As shown in FIGS. 1 to 5, the vehicle lamp 100 includes a first light source unit 10, a second light source unit 20, a projection lens 30, a support member 40, and an outer lens 50.

The first light source unit 10 forms a first pattern in front of the vehicle. In this embodiment, the first pattern is, for example, a high beam pattern. The first light source unit 10 includes a light condensing unit 11 and a diffusion unit 12. The light collecting unit 11 includes a light source (first light source) 13 and a reflector (first reflector) 14 . The diffusion unit 12 has a light source (first light source) 15 and a reflector (first reflector) 16.

The light sources 13 and 15 are, for example, semiconductor light sources such as LEDs. The light collecting unit 11 is provided with two light sources 13. Diffusion unit 12 is provided with one light source 15 . The number of light sources 13 may be one or three or more. The number of light sources 15 may be two or more. The light sources 13 and 15 are arranged, for example, so that their light emitting surfaces face upward and diagonally rearward. The light sources 13 and 15 are attached to the support member 40 via the substrate S (see FIG. 4).

Reflector 14 is placed above light source 13 . One reflector 14 is arranged for one light source 13. The reflector 14 has a reflective surface 14a. The reflective surface 14a reflects the light from the light source 13 forward. Reflector 16 is placed above light source 15 . One reflector 16 is arranged for one light source 15. The reflector 16 has a reflective surface 16a. The reflective surface 16a reflects the light from the light source 15 forward.

The second light source unit 20 forms a second pattern in front of the vehicle. In this embodiment, the second pattern is, for example, a low beam pattern. The second light source unit 20 includes a light condensing unit 21 and a diffusion unit 22. The light collecting unit 21 includes a light source (second light source) 23 and a reflector (second reflector) 24. The diffusion unit 22 includes a light source (second light source) 25 and a reflector (second reflector) 26.

The light sources 23 and 25 are, for example, semiconductor light sources such as LEDs. The condensing unit 21 is provided with two light sources 23 . Diffusion unit 22 is provided with one light source 25 . The number of light sources 23 may be one or three or more. The light sources 23 and 25 are arranged, for example, so that their light emitting surfaces face upward and diagonally rearward. The light sources 23 and 25 are attached to the support member 40 via the substrate S (see FIG. 4). The substrate S may be divided into light sources 13, 15, 23, and 25.

Reflector 24 is placed above light source 23 . One reflector 24 is arranged for one light source 23. The reflector 24 has a reflective surface 24a. The reflective surface 24a reflects the light from the light source 23 forward. Reflector 26 is placed above light source 25 . One reflector 26 is arranged for one light source 25. The reflector 26 has a reflective surface 26a. The reflective surface 26a reflects the light from the light source 25 forward.

The reflectors 24, 26 have cut-off forming portions 24b, 26b at the rear ends of the reflective surfaces 24a, 26a. The cutoff forming portions 24b and 26b form a cutoff line in a low beam pattern formed in front of the vehicle. In this embodiment, a so-called shade is not provided, and the cutoff forming portions 24b and 26b at the front ends of the reflectors 24 and 26 form the cutoff line of the low beam pattern.

In the present embodiment, each unit includes, from the inside of the vehicle to the outside of the vehicle, a condensing unit 11 of the first light source unit 10, a condensing unit 21 of the second light source unit 20, a diffusion unit 22 of the second light source unit 20, a first The light source unit 10 and the diffusion unit 12 are arranged in this order. In this way, at least a portion of the first light source unit 10 is arranged on the inner side of the vehicle than the second light source unit 20. Furthermore, in the first light source unit 10, the light condensing unit 11 is arranged closer to the vehicle inner side than the diffusion unit 12. Furthermore, in the second light source unit 20, the light condensing unit 21 is arranged closer to the inside of the vehicle than the diffusion unit 22.

Moreover, in this embodiment, the light condensing units 11 and 21 and the diffusion units 12 and 22 are arranged so that their positions are aligned in the front-back direction. In this case, the light sources 13 and 15 and the light sources 23 and 25 are arranged on the same straight line along the left-right direction. With this arrangement, the dimensions of the vehicle lamp 100 in the front-rear direction can be made compact. Note that the condensing units 11, 21 and the diffusing units 12, 22 are arranged so that their positions are aligned in the front-rear direction, for example, when viewed from the left and right direction, the reflectors 14, 16, 24, and 26 are arranged at least in the front-rear direction. It suffices to have a configuration in which they partially overlap.

The projection lens 30 is provided commonly to the first light source unit 10 and the second light source unit 20. The projection lens 30 has an entrance surface 31 and an exit surface 32. The entrance surface 31 has a first surface 31a, a second surface 31b, a third surface 31c, and a fourth surface 31d. The first surface 31a, the second surface 31b, the third surface 31c, and the fourth surface 31d are arranged in this order from the inside of the vehicle to the outside of the vehicle.

The light reflected by the reflector 14 of the condensing unit 11 is incident on the first surface 31a. The first surface 31a has a shape that projects rearward. The first surfaces 31a are arranged side by side and connected to each other in the left-right direction. The light reflected by the reflector 24 of the condensing unit 21 is incident on the second surface 31b. The second surface 31b has a shape that projects rearward. In this way, the first surface 31a and the second surface 31b, on which the light from the condensing units 11 and 21 enters, have a shape that protrudes rearward. Therefore, light can be efficiently focused toward the output surface 32.

The light reflected by the reflector 26 of the diffusion unit 22 is incident on the third surface 31c. The third surface 31c has a shape concave toward the front. The light reflected by the reflector 16 of the diffusion unit 12 is incident on the fourth surface 31d. The fourth surface 31d has a shape concave toward the front. In this way, the third surface 31c and the fourth surface 31d, on which the light from the diffusion units 12 and 22 enters, are recessed toward the front. Therefore, light can be efficiently diffused toward the output surface 32.

The output surface 32 outputs the light that has entered each surface of the input surface 31 (the first surface 31a, the second surface 31b, the third surface 31c, and the fourth surface 31d) to the front of the vehicle. The emission surface 32 is formed into a smooth curved shape from the inside of the vehicle to the outside of the vehicle. The output surface 32 irradiates the light that has entered the first surface 31a and the fourth surface 31d toward the front of the vehicle. The output surface 32 irradiates the light that has entered the second surface 31b and the third surface 31c toward the front of the vehicle.

The support member 40 supports the first light source unit 10 and the second light source unit 20. The support member 40 has a base 41 and fins 42. The base 41 includes a unit support portion 41a, a bent portion 41b, and a lens support portion 41c.

The unit support part 41a supports each part of the first light source unit 10, such as the light sources 13 and 15 and the reflectors 14 and 16. Further, the unit support section 41a supports each part of the second light source unit 20, such as the light sources 23 and 25, the reflectors 24 and 26, and the like. In this way, the first light source unit 10 and the second light source unit 20 are provided on the base 41 of the support member 40. The reflectors 14 and 16 and the reflectors 24 and 26 may be integrally provided on the base 41. According to this configuration, variations during assembly can be suppressed. The unit support portion 41a is arranged with the front side inclined upward. Therefore, as described above, the light sources 13 and 15 and the light sources 23 and 25 are arranged so that the light emitting surfaces face diagonally upward and rearward. In this embodiment, the light sources 13, 15, 23, and 25 are attached to the unit support part 41a while being arranged on the substrate S, but the present invention is not limited thereto. A structure may be adopted in which the light sources 13, 15, 23, and 25 are provided directly on the unit support portion 41a.

The bent portion 41b is bent downward from the front end of the unit support portion 41a. The lens support portion 41c is connected to the lower end of the bent portion 41b and extends forward along a horizontal plane. The lens support portion 41c supports the projection lens 30 via a lens holder (not shown) or the like.

The fins 42 are formed to protrude downward from the base 41. A plurality of fins 42 are arranged at predetermined intervals in the left-right direction. The fins 42 emit heat generated by the light sources 13 and 15 and the light sources 23 and 25.

The outer lens 50 is arranged in front of the projection lens 30. The outer lens 50 has a so-called slant shape that is inclined or curved rearward from the inside of the vehicle toward the outside of the vehicle. The outer lens 50 transmits the light emitted from the projection lens 30 forward. The outer lens 50 may be provided with, for example, at least a portion thereof a diffusion portion that diffuses light.

In this embodiment, the outer lens 50 has an inner portion 51 and an outer portion 52. The inner portion 51 is a portion of the outer lens 50 that is closer to the vehicle inner side than the intersection with the optical axis AX of the diffusion unit 22 of the second light source unit 20. Further, the outer portion 52 is a portion of the outer lens 50 that is located on the vehicle outer side than the intersection with the optical axis AX. In the outer lens 50, the outer portion 52 has a larger backward tilt angle or a larger backward curvature than the inner portion 51. In this way, the outer lens 50 has a rearwardly inclined angle or a backwardly curved curvature which increases as it reaches the outer side of the vehicle. Note that, as shown in FIGS. 1 and 2, the outer lens 50 may have a configuration in which the backward tilt angle or the backward curvature of the inner portion 51 remains almost unchanged.

Next, the operation of the vehicle lamp 100 configured as described above will be explained. 4 and 5 show a state in which light is emitted from the first light source unit 10 and the second light source unit 20 in the vehicle lamp 100. FIGS. 6 to 8 are diagrams showing examples of patterns irradiated to the front of the vehicle. In FIGS. 6 to 8, the line HH indicates a horizontal line, and the line VV indicates a line parallel to the vertical direction (hereinafter referred to as a vertical line).

As shown in FIG. 5, in the first light source unit 10, light is emitted diagonally upward and backward from the light source 13 of the condensing unit 11 and the light source 15 of the diffusing unit 12. Light emitted from light sources 13 and 15 is reflected forward by reflectors 14 and 16, respectively.

The light L1 reflected by the reflector 14 enters the first surface 31a of the projection lens 30. The light L1 that has entered the first surface 31a is collected by the first surface 31a, and is emitted from the exit surface 32 toward the front of the vehicle. This light L1 forms a high beam convergence pattern P11 as shown in FIG. 6(a) in front of the vehicle. The light condensing pattern P11 is formed so that light is condensed in a range including a central region Z including the intersection of a vertical line and a horizontal line and the vicinity thereof.

In this embodiment, the light condensing unit 11 is arranged closest to the inside of the vehicle. Therefore, the light L1 emitted by the condensing unit 11 and emitted from the projection lens 30 passes through the inner portion 51 of the outer lens 50. Therefore, internal reflection of light on the outer lens 50 is suppressed, and the condensing pattern P11 can be efficiently formed.

The light L4 reflected by the reflector 16 enters the fourth surface 31d of the projection lens 30. The light L4 that has entered the fourth surface 31d is diffused by the fourth surface 31d, and is emitted from the exit surface 32 toward the front of the vehicle. This light L4 forms a high beam diffusion pattern P12 in front of the vehicle as shown in FIG. 6(b).

In this embodiment, the diffusion unit 12 is arranged at the outermost side of the vehicle. Therefore, the light L4 emitted by the diffusion unit 12 and emitted from the projection lens 30 passes through the outer portion 52 of the outer lens 50. Since this light L4 is light diffused by the projection lens 30, even when passing through the slope or curve of the outer portion 52 of the outer lens 50, the influence of internal reflection is small. Therefore, the diffusion pattern P12 can be efficiently formed.

As described above, when the first light source unit 10 is turned on, the condensing unit 11 and the diffusion unit 12 create a condensing pattern P11 shown in FIG. 6(a) and a diffusion pattern P11 shown in FIG. 6(b) in front of the vehicle. A high beam pattern in which the pattern P12 is superimposed, that is, a first pattern P10 as shown in FIG. 6(c) is formed.

On the other hand, as shown in FIG. 5, in the second light source unit 20, light is emitted diagonally upward and backward from the light source 23 of the condensing unit 21 and the light source 25 of the diffusing unit 22. Light emitted from the light sources 23 and 25 is reflected forward by reflective surfaces 24a and 26a of reflectors 24 and 26, respectively.

A portion of the light L2 reflected by the reflective surface 24a of the reflector 24 passes above the cutoff forming portion 24b, and a portion of the light L2b passes through the cutoff forming portion 24b and is reflected by the projection lens 30. The light is incident on the second surface 31b (see FIG. 4). The light L2 that has entered the second surface 31b is condensed by the second surface 31b, and is emitted from the exit surface 32 toward the front of the vehicle. This light L2 forms a low beam convergence pattern P21 as shown in FIG. 7(a) in front of the vehicle. The condensing pattern P21 has a horizontal cut-off line CL1 and a diagonal cut-off line CL2 as cut-off lines CL.

In this embodiment, the light condensing unit 21 is arranged on the inner side of the vehicle than the diffusion unit 22 is. The light L2 emitted by the condensing unit 21 and emitted from the projection lens 30 passes through the inner portion 51 of the outer lens 50. Therefore, internal reflection of light on the outer lens 50 is suppressed, and the condensing pattern P21 can be efficiently formed.

Similar to the light L2, part of the light L3 reflected by the reflective surface 26a of the reflector 26 passes above the cutoff forming part 26b, and part of the light passes through the cutoff forming part 26b. The light is incident on the third surface 31c of the projection lens 30. The light L3 that has entered the third surface 31c is diffused by the third surface 31c, and is emitted from the exit surface 32 toward the front of the vehicle. Of the light L3, the light L3a reflected toward the inside of the vehicle from the reflective surface 26a passes through the inner portion 51 of the outer lens 50. Further, out of the light L3, light L3b reflected toward the outside of the vehicle from the reflective surface 26a passes through the outer portion 52 of the outer lens 50. In this case, the influence of internal reflection when the light L3b passes through the outer portion 52 of the outer lens 50 can be reduced. This light L3 forms a low beam diffusion pattern P22 in front of the vehicle as shown in FIG. 7(b). The diffusion pattern P22 has a horizontal cut-off line CL3 as the cut-off line CL.

In this embodiment, the diffusion unit 22 is arranged on the outer side of the vehicle than the condensing unit 21 . Therefore, the light L3 emitted by the diffusion unit 22 and emitted from the projection lens 30 passes through the outer portion 52 of the outer lens 50. Since this light L3 is light diffused by the projection lens 30, even when passing through the slope or curve of the outer portion 52 of the outer lens 50, the influence of internal reflection is small. Therefore, the diffusion pattern P22 can be formed efficiently.

As described above, when the second light source unit 20 is turned on, the light condensing unit 21 and the diffusion unit 22 create a light condensing pattern P21 shown in FIG. 7(a) and a diffused light pattern P21 shown in FIG. A low beam pattern in which the pattern P22 is superimposed, that is, a second pattern P20 as shown in FIG. 7(c) is formed.

Furthermore, by lighting the first light source unit 10 and the second light source unit 20 at the same time, the first pattern P10 shown in FIG. 6(c) and the second pattern P20 shown in FIG. 7(c) are overlapped in front of the vehicle. A combined pattern, that is, an irradiation pattern P as shown in FIG. 8 is formed.

As described above, the vehicle lamp 100 according to the present embodiment includes the first light source unit 10 having the light sources 13 and 15 and the reflectors 14 and 16 that reflect the light from the light sources 13 and 15, and the light sources 23 and 25. and a second light source unit 20 having reflectors 24 and 26 that reflect light from the light sources 23 and 25, which is provided in common to the first light source unit and the second light source unit, and which reflects light from the reflectors 14 and 16. The light reflected by the reflectors 24 and 26 is applied to the front of the vehicle to form a second pattern P10, which is different from the first pattern P10. It includes a projection lens 30 that forms a pattern P20, and an outer lens 50 that has a shape that is inclined or curved backward from the inside of the vehicle toward the outside of the vehicle when mounted on the vehicle, and that transmits the light irradiated from the projection lens 30. , the first light source unit 10 and the second light source unit 20 are provided on the support member 40, and at least a portion of the first light source unit 10 is disposed on the inner side of the vehicle than the second light source unit 20.

According to this configuration, the first light source unit 10 and the second light source unit 20 for forming different patterns are provided on the support member 40, and the projection lens 30 is common to the first light source unit 10 and the second light source unit 20. In the provided configuration, at least a portion of the first light source unit 10 is disposed on the inner side of the vehicle than the second light source unit 20, so that the light from the first light source unit 10 passes through a region of the outer lens 50 on the inside of the vehicle. It turns out. Therefore, it is possible to suppress internal reflection of the light from the first pattern P10 when passing through the outer lens 50, and it is possible to efficiently form the first pattern P10 in a range including the central region Z in front of the vehicle. . Thereby, it is possible to provide the vehicle lamp 100 that can efficiently utilize light.

In the vehicle lamp 100 according to the present embodiment, the first pattern P10 is a high beam pattern, and the second pattern P20 is a low beam pattern. According to this configuration, a high beam pattern and a low beam pattern can be formed in front of the vehicle by efficiently utilizing light.

In the vehicle lamp 100 according to the present embodiment, the second pattern P20 has a cutoff line CL, and the reflectors 24 and 26 have cutoff forming portions 24b and 26b that form the cutoff line CL at the rear end of the vehicle. have Therefore, in a configuration including reflectors 24 and 26 having cutoff forming portions 24b and 26b at the rear ends of the vehicle, it is possible to efficiently utilize light to form a high beam pattern and a low beam pattern in front of the vehicle. .

In the vehicle lamp 100 according to the present embodiment, the first light source unit 10 and the second light source unit 20 each have light collecting units 11 and 21 and diffusion units 12 and 22. The unit 11 is arranged on the inside of the vehicle with respect to the diffusion unit 12, and the condensing unit 21 of the second light source unit 20 is arranged on the inside of the vehicle with respect to the diffusion unit 22. According to this configuration, for each of the first light source unit 10 and the second light source unit 20, the light collecting units 11 and 21 are arranged inside the vehicle with respect to the diffusion units 12 and 22. The light from the diffuser unit 12 and the light from the diffusion units 12 and 22 pass through a region of the outer lens 50 on the inner side of the vehicle. Therefore, internal reflection when the light from the condensing units 11 and 21 passes through the outer lens 50 can be reliably suppressed.

In the vehicle lamp 100 according to the present embodiment, from the inside of the vehicle to the outside of the vehicle, the condensing unit 11 of the first light source unit 10, the condensing unit 21 of the second light source unit 20, the diffusion unit 22 of the second light source unit 20, The first light source unit 10 and the diffusion unit 12 are arranged in this order. According to this configuration, since the condensing unit 21 of the second light source unit 20 and the diffusion unit 22 of the second light source unit 20 are arranged at the center in the left-right direction, it is possible to form only the second pattern P20 in front of the vehicle. Even if there is, it is possible to create a state in which the entire vehicle lamp 100 appears to be illuminated when viewed from the outside. Thereby, the appearance can be improved.

In the vehicle lamp 100 according to the present embodiment, the outer lens 50 compares an inner portion 51 on the inside of the vehicle with an outer portion 52 on the outer side of the vehicle with respect to the intersection with the optical axis AX of the diffusion unit 22 of the second light source unit 20. Therefore, the angle of backward inclination or the curvature of backward curvature of the outer portion 52 is greater than that of the inner portion 51 . According to this configuration, internal reflection when the light from the condensing units 11 and 21 disposed inside the vehicle passes through the outer lens 50 can be suppressed more reliably. Moreover, when the light from the diffusion units 12 and 22 disposed outside the vehicle passes through the outer lens 50, the influence of internal reflection in the outer lens 50 can be reduced.

In the vehicle lamp 100 according to the present embodiment, the light collecting units 11 and 21 and the diffusion units 12 and 22 are arranged so that their positions are aligned in the front and rear direction. According to this configuration, the dimensions in the front and back direction can be made compact.

The technical scope of the present invention is not limited to the above embodiments, and changes can be made as appropriate without departing from the spirit of the present invention. For example, in the embodiment described above, the condensing units 11 and 21 and the diffusion units 12 and 22 are arranged so as to be aligned in the front and back direction, but the present invention is not limited to this.

FIG. 9 is a diagram showing a vehicle lamp 100A according to a modified example. In the vehicle lamp 100A shown in FIG. 9, in the first light source unit 10, the diffusion unit 12A is arranged in front of the condensing unit 11A. Further, in the second light source unit 20, the diffusion unit 22A is arranged in front of the light collecting unit 21A. According to this configuration, the diffusion units 12A, 22A are arranged closer to the projection lens 30 than the condensing units 11A, 21A. Therefore, the diffusion angle of the light from the diffusion units 12A and 22A can be increased.

Further, the diffusion unit 22A of the second light source unit 20 is arranged in front of the diffusion unit 12A of the first light source unit 10. According to this configuration, the diffusion range of the second pattern P20 formed by the diffusion unit 22A can be made larger than the diffusion range of the first pattern P10 formed by the diffusion unit 12A.

Further, in the above embodiment, the first pattern is described using a high beam pattern as an example, but the first pattern is not limited to this. The first pattern may be an Adaptive Driving Beam (ADB) pattern.

FIG. 10 is a diagram showing a vehicle lamp 100B according to a modified example. FIG. 11 is a diagram showing an example of a pattern irradiated to the front of the vehicle. A vehicle lamp 100B shown in FIG. 10 includes a first light source unit 10 and a second light source unit 20. The first light source unit 10 irradiates the front of the vehicle with an ADB pattern PB as shown in FIG. 11 as a first pattern.

The first light source unit 10 includes a light condensing unit 11B and a diffusion unit 12B. The light collecting unit 11B includes a light source 13B and a reflector 14B. Diffusion unit 12B has a light source 15B and a reflector 16B.

The light collecting unit 11B forms a first pattern PB1, a second pattern PB2, and a third pattern PB3, which are light collecting patterns, among the ADB patterns PB. The diffusion unit 12B forms a fourth pattern PB4 and a fifth pattern PB5, which are diffusion patterns, among the ADB patterns PB. In this way, by changing the number of pairs of light sources 13B and reflectors 14B in the condensing unit 11B and the number of pairs of light sources 15B and reflectors 16B in the diffusion unit 12B, a configuration is created in which the ADB pattern PB can be irradiated to the front of the vehicle. It can be done.

Note that in FIG. 11, in order to make it easier to see the positional relationship of each of the first pattern PB1 to fifth pattern PB5, each pattern is shown shifted in the vertical direction, but the arrangement is not limited to this. Each of the first pattern PB1 to fifth pattern PB5 may be arranged without being shifted in the vertical direction.

Further, in the above embodiment, the cutoff forming parts 24b and 26b are formed at the front tips of the reflectors 24 and 26 of the second light source unit 20, and the cutoff forming parts 24b and 26b form the cutoff line of the low beam pattern. Although the configuration has been described as an example, the present invention is not limited to this. The reflectors 24 and 26 may have a configuration in which cutoff forming portions 24b and 26b are not formed at the front end portions, and a shade is disposed and a cutoff line is formed by the shade.

AX...optical axis, CL...cutoff line, CL1, CL3...horizontal cutoff line, CL2...diagonal cutoff line, L1, L2, L3, L4...light, P...irradiation pattern, P10, PB1...first pattern, P11, P21 ... Focusing pattern, P12, P22... Diffusion pattern, P20, PB2... Second pattern, PB... ADB pattern, PB3... Third pattern, PB4... Fourth pattern, PB5... Fifth pattern, Z... Central region, 10... First light source unit, 11, 11A, 11B, 21, 21A... Concentrating unit, 12, 12A, 12B, 22, 22A... Diffusion unit, 13, 13B, 15, 15B, 23, 25... Light source, 14, 14B, 16, 16B, 24, 26...Reflector, 14a, 16a, 24a, 26a...Reflection surface, 20...Second light source unit, 24b, 26b...Cutoff formation part, 30...Projection lens, 31...Incidence surface, 31a...Th 1st surface, 31b... 2nd surface, 31c... 3rd surface, 31d... 4th surface, 32... exit surface, 40... support member, 41... base, 41a... unit support part, 41b... bent part, 41c... lens support Part, 42... Fin, 50... Outer lens, 51... Inner part, 52... Outer part, 100, 100A, 100B... Vehicle lamp

Claims (9)

a first light source unit having a first light source and a first reflector that reflects light from the first light source;
a second light source unit having a second light source and a second reflector that reflects light from the second light source;
The first light source unit is provided in common with the first light source unit and the second light source unit, and the light reflected by the first reflector is irradiated to a range including a central area in front of the vehicle to form a first pattern; a projection lens that irradiates the light reflected by the second reflector to the front of the vehicle to form a second pattern different from the first pattern;
an outer lens that has a shape that is inclined or curved backward from the inside of the vehicle toward the outside of the vehicle when mounted on the vehicle, and that transmits the light irradiated from the projection lens;
The first light source unit and the second light source unit are provided on a support member,
The first light source unit is at least partially disposed inside the vehicle than the second light source unit. The first pattern is a high beam pattern or an ADB pattern,
The vehicle lamp according to claim 1, wherein the second pattern is a low beam pattern. The second pattern has a cutoff line,
The vehicular lamp according to claim 2, wherein the second reflector has a cut-off forming part that forms the cut-off line at a rear end of the vehicle. The first light source unit and the second light source unit each include a light condensing unit and a diffusion unit,
The vehicle according to any one of claims 1 to 3, wherein for each of the first light source unit and the second light source unit, the light condensing unit is arranged inside the vehicle with respect to the diffusion unit. Light equipment. From the inside of the vehicle to the outside of the vehicle, the light collection unit of the first light source unit, the light collection unit of the second light source unit, the diffusion unit of the second light source unit, and the diffusion unit of the first light source unit. The vehicular lamp according to claim 4, wherein the vehicular lamp is arranged in this order. The outer lens is configured such that the outer lens is larger than the inner portion by comparing an inner portion of the second light source unit with the optical axis of the diffusion unit and an outer portion of the outer lens. The vehicular lamp according to claim 4 or 5, wherein the angle of backward inclination or the curvature of backward curvature is large. The vehicular lamp according to any one of claims 4 to 6, wherein in each of the first light source unit and the second light source unit, the diffusion unit is arranged ahead of the light condensing unit. The vehicular lamp according to any one of claims 4 to 7, wherein the diffusion unit of the second light source unit is arranged further forward than the diffusion unit of the first light source unit. The vehicular lamp according to any one of claims 4 to 6, wherein the light condensing unit and the diffusion unit are arranged so as to be aligned in the front-rear direction.

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