Vehicle lamp

Abstract

To provide a vehicular lighting fixture capable of enhancing utilization efficiency of light emitted from a light source.SOLUTION: A first light source 2A, a second light source 2A disposed adjacent to the first light source 2B in a left-right direction, and a projector lens 3 disposed in front of the first light source 2A and the second light source 2B, wherein the projector lens 3 has a first light entering surface 2A located on a side facing the first light source 3a, a second light entering surface 2B located on a side facing the second light source 3b, and a light exiting surface located on a side opposite to the side where the first light entering surface and the second light entering surface are located, and the projector lens 3 protrudes from between the first light entering surface and the second light entering surface toward between the first light source and the second light source; 2A 3a 2B 3b 3b 3a 3c, in addition, a rib wall 8 extending in the up-down direction is provided, and the rib wall 8 includes a first light incident surface 2A located on a side opposite to a side between the first light source 3a and the first light incident surface 8a, and a second light incident surface 2B located on a side opposite to a side between the second light source 3b and the second light incident surface 8b.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to a vehicle lamp. [Background technology]

[0002] BACKGROUND ART Conventionally, a vehicle lamp mounted on the front of a vehicle includes a light source such as a light emitting diode (LED) and a projection lens that projects light emitted from the light source in the traveling direction of the vehicle.

[0003] Furthermore, some vehicle lamps emit light from light sources of different colors by switching between them (see, for example, Patent Document 1 below).

[0004] Specifically, Patent Document 1 below discloses a fog lamp unit that includes a light source and an inner lens, where the light source includes a first light source emitting a first color and a third light source emitting a second color, the inner lens includes a first light incident surface and a third light incident surface where the first light source and the third light source face each other, the surface shape of the first light incident surface is configured so that light exiting the inner lens forms a light distribution pattern for a first fog lamp of the first color in a predetermined area, and the surface shape of the third light incident surface is configured so that light exiting the inner lens forms a light distribution pattern for a second fog lamp of the second color in a predetermined area. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Publication No. 2019-212469 Summary of the Invention [Problem to be solved by the invention]

[0006] However, in the invention described in Patent Document 1, the light distribution is controlled on each light incident surface facing each light source, so the amount of light emitted from each light source that can be taken in by each light incident surface is limited.

[0007] In other words, the light emitted from the first light source that does not enter the first light incident surface and the light emitted from the third light source that does not enter the third light incident surface are wasted light that does not contribute to forming the first fog lamp light distribution pattern and the third fog lamp light distribution pattern.

[0008] Therefore, the efficiency of use of light emitted from each light source when forming each fog lamp light distribution pattern decreases, resulting in a decrease in the amount of light (brightness) forming each fog lamp light distribution pattern.

[0009] The present invention has been proposed in view of the above-described conventional circumstances, and has an object to provide a vehicle lamp that makes it possible to improve the utilization efficiency of light emitted from a light source. [Means for solving the problem]

[0010] In order to achieve the above object, the present invention provides the following means. [1] A first light source that emits a first light; a second light source disposed adjacent to the first light source in one direction and configured to emit a second light in the same direction as the first light; a projection lens disposed in front of the first light source and the second light source and configured to project the first light and the second light in the same direction; the projection lens includes a first light incident surface located on a side facing the first light source and through which the first light emitted from the first light source is incident; a second light incident surface located on a side facing the second light source and allowing the second light emitted from the second light source to enter the interior of the light incident surface; a light exit surface that is located on the opposite side to the side where the first light incident surface and the second light incident surface are located, and that emits the first light and the second light to the outside, a rib wall is provided that protrudes from between the first light incident surface and the second light incident surface toward between the first light source and the second light source and extends in another direction intersecting the one direction; the rib wall includes a first light-entering / exiting surface located on a side opposite to a gap between the first light source and the first light-entering surface, and a second light-entering / exiting surface located on a side opposite to a gap between the second light source and the second light-entering surface, a portion of the first light emitted from the first light source enters the inside of the rib wall from the first light incident / exit surface, is emitted to the outside of the rib wall from the second light incident / exit surface, and then enters the inside of the projection lens from the second light incident surface; A vehicular lamp in which a portion of the second light emitted from the second light source enters the inside of the rib wall from the second light entrance / exit surface, exits to the outside of the rib wall from the first light entrance / exit surface, and then enters the inside of the projection lens from the first light entrance surface. [2] The vehicle lamp according to [1], wherein the rib wall is formed by a part of the projection lens. [3] The vehicle lamp according to [2], wherein a step is provided between the first light incident surface and the second light incident surface with the rib wall interposed therebetween. [4] An optical axis of the first light emitted from the first light source and an optical axis of the second light emitted from the second light source are parallel to each other; The vehicle lamp according to [1], wherein the first light incident surface and the second light incident surface refract the first light and the second light in a direction in which their optical axes intersect while the first light and the second light enter the inside of the projection lens. [5] The vehicular lamp according to [1], wherein the other direction is a direction along the vertical direction. [Effects of the Invention]

[0011] As described above, according to the present invention, a vehicle lamp that can improve the utilization efficiency of light emitted from a light source is provided. [Brief explanation of the drawings]

[0012] [Figure 1] 1 is a front view showing a configuration of a vehicle lamp according to an embodiment of the present invention; [Figure 2] FIG. 2 is a side view showing the configuration of the vehicle lamp shown in FIG. [Figure 3]2 is a cross-sectional view of the vehicle lamp taken along line AA in FIG. 1, showing the optical paths of first light and second light emitted from a first light source and a second light source. [Figure 4] 1 is a cross-sectional view showing a vehicle lamp attached to a front bumper of a vehicle. [Figure 5] 2A and 2B show the optical paths of light emitted by the vehicle lamp shown in FIG. 1, where FIG. 2A is a cross-sectional view showing the optical path of a first light emitted from the first light source, and FIG. 2B is a cross-sectional view showing the optical path of a second light emitted from the second light source. [Figure 6] 2 is a luminous intensity distribution diagram showing a light distribution pattern formed on the surface of a virtual vertical screen by a first light and a second light emitted from the vehicle lamp shown in FIG. 1. [Figure 7] 1A and 1B show the optical path of light emitted from a vehicle lamp in which the rib wall is omitted as a comparative example, where FIG. 1A is a cross-sectional view showing the optical path of the first light emitted from the first light source, and FIG. 1B is a cross-sectional view showing the optical path of the second light emitted from the second light source. [Figure 8] 8 is a luminous intensity distribution diagram showing a light distribution pattern formed on the surface of a virtual vertical screen by a first light and a second light emitted from the vehicle lamp shown in FIG. 7. [Figure 9] 1. FIG. 4 is a cross-sectional view showing a modified example of a rib wall provided in the vehicle lamp shown in FIG. [Figure 10] 1A and 1B show a first modified example of a vehicle lamp, in which (A) is a front view thereof and (B) is a cross-sectional view thereof. [Figure 11] 10A and 10B show a second modified example of a vehicle lamp, in which (A) is a front view thereof and (B) is a cross-sectional view thereof. [Figure 12] 10A and 10B show a third modified example of a vehicle lamp, in which (A) is a front view thereof and (B) is a cross-sectional view thereof. DETAILED DESCRIPTION OF THE INVENTION

[0013] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In the drawings used in the following description, the dimensions of the components may be shown at different scales to make them easier to see, and the dimensional ratios of the components may not necessarily be the same as in reality.

[0014] As one embodiment of the present invention, a vehicle lamp 1 shown in, for example, FIGS. 1 to 6 will be described. Fig. 1 is a front view showing the configuration of the vehicle lamp 1. Fig. 2 is a side view showing the configuration of the vehicle lamp 1. Fig. 3 is a cross-sectional view showing the optical paths of the first light L1 and the second light L2 emitted from the first light source 2A and the second light source 2B in a cross section of the vehicle lamp 1 taken along line AA shown in Fig. 1. Fig. 4 is a cross-sectional view showing the vehicle lamp 1 attached to the front bumper 100 of a vehicle.

[0015] In addition, in the drawings shown below, an XYZ Cartesian coordinate system is set up, with the X-axis direction representing the front-to-rear direction (length direction) of the vehicle lighting fixture 1, the Y-axis direction representing the left-to-right direction (width direction) of the vehicle lighting fixture 1, and the Z-axis direction representing the up-to-down direction (height direction) of the vehicle lighting fixture 1.

[0016] The vehicle lighting fixture 1 of this embodiment is an application of the present invention to a fog lamp that is mounted, for example, on both corners of the front end of a vehicle (not shown) (in this embodiment, the corner on the left front end) and irradiates light that forms a light distribution pattern for the fog lamp in the direction of travel of the vehicle.

[0017] Specifically, as shown in Figures 1 to 4, this vehicle lamp 1 has a structure in which a first light source 2A that emits a first light L1, a second light source 2B that emits a second light L2, and a projection lens 3 that projects the first light L1 and the second light L2 in the same direction, and these are arranged inside a lamp body 4.

[0018] The lamp body 4 is composed of a housing 5 with an opening at the front and a transparent outer lens 6 that covers the opening of the housing 5. The shape of the lamp body 4 can be changed as appropriate to suit the design of the vehicle, etc.

[0019] The first light source 2A and the second light source 2B are light-emitting elements such as LEDs that emit white light or yellow light, and are arranged adjacent to each other and in one direction (the left-right direction in this embodiment) on one surface (the front surface in this embodiment) of a circuit board 7 that has a circular shape in a plan view.

[0020] In the vehicle lamp 1 of this embodiment, the first light source 2A and the second light source 2B are arranged side by side in the vertical direction at positions that are vertically symmetrical with respect to a horizontal line HL that is parallel to one direction.

[0021] As a result, the first light source 2A and the second light source 2B radially emit the first light L1 and the second light L2 toward the front of the vehicle lamp 1. That is, the first light source 2A and the second light source 2B are provided on the same surface of the same circuit board 7, and are configured to radially emit the first light L1 and the second light L2 toward the same direction.

[0022] Therefore, the optical axis AX1 of the first light L1 emitted from the first light source 2A (hereinafter referred to as the "first optical axis") and the optical axis AX2 of the second light L2 emitted from the second light source 2B (hereinafter referred to as the "second optical axis") are parallel to each other.

[0023] The projection lens 3 is made of a light-transmitting material such as a transparent resin such as polycarbonate or acrylic, or glass, and is formed in a circular shape when viewed from the front. The projection lens 3 is disposed in front of the first light source 2A and the second light source 2B, and has a shape that is vertically symmetrical with respect to the horizontal line HL.

[0024] In the vehicle lamp 1 of this embodiment, the first and second light sources 2A, 2B on the upper side and the first and second light sources 2A, 2B on the lower side across the horizontal line HL can be switched on or turned on simultaneously. Meanwhile, the first and second light sources L1, L2 emitted from the upper first and second light sources 2A, 2B and the first and second light sources L1, L2 emitted from the lower first and second light sources 2A, 2B are not limited to being the same color light, and may be different colors from each other.

[0025] In addition, since the vehicle lamp 1 of this embodiment has a configuration that is symmetrical above and below the horizontal line HL described above, unless otherwise specified, the description will be based on the configuration on the upper side of the horizontal line HL.

[0026] The projection lens 3 has a first light entrance surface 3a located on the side facing the first light source 2A (rear side), a second light entrance surface 3b located on the side facing the second light source 2B, a light exit surface 3c located on the side opposite to the side on which the first light entrance surface 3a and the second light entrance surface 3b are located (front side), and a rib wall 8 located between the first light entrance surface 3a and the second light entrance surface 3b.

[0027] The first light incident surface 3a and the second light incident surface 3b have a lens shape that is curved outwardly convexly. A step is provided between the first light incident surface 3a and the second light incident surface 3b with a rib wall 8 in between.

[0028] The first light incident surface 3a refracts the first light L1 emitted from the first light source 2A in a direction (light-collecting direction) approaching the first optical axis AX1, and the first light L1 enters the inside of the projection lens 3. The second light incident surface 3b refracts the second light L2 emitted from the second light source 2B in a direction (light-collecting direction) approaching the second optical axis AX2, and the second light L2 enters the inside of the projection lens 3.

[0029] The first light incident surface 3a and the second light incident surface 3b refract the first light L1 and the second light L2 in the direction where their optical axes AX1 and AX2 intersect, and the light enters the inside of the projection lens 3.

[0030] As a result, the first light L1 incident from the first light entrance surface 3a and the second light L2 from the second light entrance surface 3b are refracted toward the forward light exit surface 3c so that their optical axes AX1 and AX2 intersect with the central axis AX3 passing between the first light entrance surface 3a and the second light entrance surface 3b of the projection lens 3.

[0031] The light exit surface 3c has a lens shape that is curved outwardly in the vertical direction of the projection lens 3 and extends in the horizontal direction of the projection lens 3.

[0032] The light exit surface 3c refracts the first light L1 in a direction away from the first optical axis AX1 (diffused light direction) in the left-right direction of the projection lens 3, and emits the first light L1 to the outside of the projection lens 3. The light exit surface 3c refracts the second light L2 in a direction away from the second optical axis AX2 (diffused light direction) in the left-right direction of the projection lens 3, and emits the second light L2 to the outside of the projection lens 3.

[0033] As a result, the first light L1 and the second light L2 emitted from the light-emitting surface 3c are irradiated toward the front of the vehicle, thereby forming a light distribution pattern for the fog lamp.

[0034] The rib wall 8 is formed by a part of the projection lens 3, and has a flat plate shape that protrudes from between the first light incident surface 3a and the second light incident surface 3b toward between the first light source 2A and the second light source 2B, and extends in another direction (in this embodiment, the up and down direction) that intersects with the one direction.

[0035] The rib wall 8 has a first light-entering / exiting surface 8a located on the side opposite to the space between the first light source 2A and the first light-entering surface 3a, and a second light-entering / exiting surface 8b located on the side opposite to the space between the second light source 2B and the second light-entering surface 3b.

[0036] In the vehicle lamp 1 of this embodiment, a portion of the first light L1 emitted from the first light source 2A enters the inside of the rib wall 8 from the first light incident / exit surface 8a, is emitted to the outside of the rib wall 8 from the second light incident / exit surface 8b, and then enters the inside of the projection lens 3 from the second light incident surface 3b. Then, the first light L1 incident from the second light incident surface 3b is refracted toward the forward light exit surface 3c and is emitted to the outside of the projection lens 3 from the light exit surface 3c.

[0037] Furthermore, in the vehicle lamp 1 of this embodiment, a portion of the second light L2 emitted from the second light source 2B enters the inside of the rib wall 8 from the second light incident / exit surface 8b, is emitted to the outside of the rib wall 8 from the first light incident / exit surface 8a, and then enters the inside of the projection lens 3 from the first light incident surface 3a. Then, the second light L2 incident from the first light incident surface 3a is refracted toward the forward light exit surface 3c and is emitted to the outside of the projection lens 3 from the light exit surface 3c.

[0038] In the vehicle lamp 1 of this embodiment having the above-mentioned configuration, the second light L2 incident on the first light incident surface 3a through the rib wall 8 on which the above-mentioned first light incident / exit surface 8a and second light incident / exit surface 8b are provided, and the first light L1 incident on the second light incident surface 3b can each be used as light to form a light distribution pattern for the fog lamp.

[0039] Here, in the vehicle lamp 1 shown in Figure 3 above, Figure 5(A) shows the optical path of the first light L1 emitted from the first light source 2A, and Figure 5(B) shows the optical path of the second light L2 emitted from the second light source 2B.

[0040] FIG. 6 shows a light distribution pattern for a fog lamp obtained by simulation when the first light L1 and the second light L2 are projected onto a virtual vertical screen facing the vehicle lamp 1.

[0041] On the other hand, as a comparative example, Figure 7(A) shows the optical path of the first light L1 emitted from the first light source 2A when the rib wall 8 is omitted from the configuration of the vehicle lamp 1 shown in Figure 3 above, and Figure 7(B) shows the optical path of the second light L2 emitted from the second light source 2B.

[0042] FIG. 8 shows a light distribution pattern for fog lamps when the first light L1 and the second light L2 are projected onto a virtual vertical screen in a simulation in which the rib wall 8 is omitted.

[0043] In the vehicle lamp 1 of this embodiment, as shown in Figures 5(A) and (B), the second light L2 incident on the first light incident surface 3a through the rib wall 8 and the first light L1 incident on the second light incident surface 3b can be taken in as light that forms a light distribution pattern for the fog lamp.

[0044] On the other hand, if the rib wall 8 is omitted, as shown in Figures 7(A) and (B), it becomes difficult to capture the second light L2 incident on the first light incident surface 3a and the first light L1 incident on the second light incident surface 3b as light that forms a light distribution pattern for the fog lamp.

[0045] Therefore, in the light distribution pattern for fog lamps when the rib wall 8 shown in Figure 8 is omitted, it can be seen that the first light L1 that cannot be captured as the light distribution pattern for fog lamps is generated inside the enclosed area B shown in Figure 8 in the vehicle width direction.

[0046] In contrast, in the light distribution pattern for fog lamps when the rib wall 8 shown in Figure 6 is provided, it can be seen that the amount of first light L1 that forms the light distribution pattern for fog lamps is increased in the enclosed area C shown in Figures 6 and 8 compared to when the rib wall 8 is omitted.

[0047] As described above, the vehicle lamp 1 of this embodiment can increase the amount of light (brightness) that forms the above-mentioned fog lamp light distribution pattern, and can improve the utilization efficiency of the first light L1 and the second light L2 emitted from the first light source 2A and the second light source 2B.

[0048] As shown in FIG. 4, the vehicle lamp 1 of this embodiment is attached to the front bumper 100 of the vehicle as the above-mentioned fog lamp, facing forward through an opening 100a provided in the front bumper 100.

[0049] The front bumper 100 has a curved or inclined shape that is recessed more on the outer side than on the inner side in the vehicle width direction in accordance with the slanted shape given to both corners in the vehicle width direction. Therefore, the periphery of the openings 100a provided in both corners of the front bumper 100 has a shape in which the inner side protrudes more forward than the outer side in the vehicle width direction.

[0050] In the vehicle lighting fixture 1 of this embodiment, the first light L1 incident from the first light entrance surface 3a and the second light L2 incident from the second light entrance surface 3b are refracted in a direction where their optical axes AX1 and AX2 intersect with the central axis AX3 of the projection lens 3, and are emitted to the outside of the projection lens 3 from the light exit surface 3c.

[0051] This allows the first light L1 and the second light L2 to be irradiated from the opening 100a of the front bumper 100 toward the front of the vehicle without interfering with the periphery of the opening 100a of the front bumper 100. Also, a portion of the first light L1 incident from the first light incident surface 3a can be irradiated from the opening 100a of the front bumper 100 toward the outside in the vehicle width direction.

[0052] The present invention is not necessarily limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention.

[0053] The rib wall 8 is not necessarily limited to the flat plate shape described above, and may have a shape such as a rib wall 8A shown in FIG. 9(A) or a rib wall 8B shown in FIG. 9(B).

[0054] 9(A) has a shape that is inclined to one side with respect to the central axis AX3 of the projection lens 3. This makes it possible to control the light distribution of the second light L2 that enters the first light incident surface 3a through the rib wall 8A and the first light L1 that enters the second light incident surface 3b.

[0055] 9(B) has a shape in which one or both of the first light incident / exit surface 8a and the second light incident / exit surface 8b are inclined with respect to the central axis AX3 of the projection lens 3. This makes it possible to control the light distribution of the second light L2 incident on the first light incident surface 3a and the first light L1 incident on the second light incident surface 3b via the rib wall 8B.

[0056] The rib walls 8, 8A, and 8B are not necessarily limited to being formed as part of the projection lens 3 described above, but may also be formed as separate bodies from the projection lens 3.

[0057] Furthermore, the other direction in which the rib wall 8 extends is preferably a direction (vertical direction) along the vertical direction of the projection lens 3. On the other hand, the one direction in which the first light source 2A and the second light source 2B are aligned is not limited to a direction (horizontal direction) perpendicular to the other direction, but may be any direction (diagonal direction) intersecting the other direction.

[0058] Therefore, the first light source 2A and the second light source 2B are not limited to being arranged side by side in the left-right direction with the rib wall 8 sandwiched therebetween, but may also be arranged side by side in a diagonal direction with the rib wall 8 sandwiched therebetween. That is, the above-mentioned vehicle lamp 1 may be configured to light up the first light source 2A and the second light source 2B that are arranged side by side in the diagonal direction with the rib wall 8 sandwiched therebetween.

[0059] Furthermore, in the projection lens 3, the shapes of the first light incident / exit surface 8a and the second light incident / exit surface 8b are not limited to the above-mentioned outwardly convexly curved lens shape, but may be, for example, an inwardly concavely curved lens shape, a flat shape, a shape with uneven thickness, etc., and can be changed as appropriate. Furthermore, the shape of the light exit surface 3c is also not limited to the above-mentioned lens shape, and can be changed as appropriate, just like the first light incident / exit surface 8a and the second light incident / exit surface 8b.

[0060] Furthermore, the vehicle lamp to which the present invention is applied is not necessarily limited to the configuration of the vehicle lamp 1, and the number of the first and second light sources 2A, 2B and the shape of the projection lens 3 can be changed as appropriate to suit the design of the actual vehicle, etc.

[0061] For example, as a first variant, in the vehicle lamp 1A shown in Figures 10(A) and (B), the first light entrance surface 3a and the second light entrance surface 3b of the projection lens 3 have lens shapes that are curved inwardly concavely, and the light exit surface 3c has lens shapes that are curved outwardly convexly on both the left and right sides of the central axis AX3 of the projection lens 3.

[0062] On the other hand, as a second variant, in the vehicle lamp 1B shown in Figures 11(A) and (B), the first light entrance surface 3a and the second light entrance surface 3b of the projection lens 3 have a lens shape that is curved inwardly concavely, and light exit surfaces 3c each having a lens shape that is curved outwardly convexly are arranged on both the left and right sides of the central axis AX3 of the projection lens 3, and further, this projection lens 3 has a shape that extends in the left-right direction.

[0063] On the other hand, as a third variant, the vehicle lamp 1C shown in Figures 12(A) and (B) has a configuration in which multiple (three in this example) light sources 2A, 2B arranged adjacent to each other are arranged side by side in one direction, and one of the adjacent light sources is the first light source 2A and the other light source is the second light source 2B.

[0064] The projection lens 3 has a plurality of (three in this example) light entrance surfaces 3a, 3b, each having an inwardly concave lens shape, arranged in a line in one direction to match the plurality of light sources 2A, 2B, and one of the adjacent light entrance surfaces is the first light entrance surface 3a, and the other light entrance surface is the second light entrance surface 3b.

[0065] In addition, the projection lens 3 has a configuration in which multiple (in this example, three) light exit surfaces 3c, each having an outwardly convex curved lens shape, are arranged in one direction to match these multiple light entrance surfaces 3a, 3b.

[0066] That is, in the present invention, as in the above-mentioned vehicle lighting fixture 1C, it is possible to increase the number of adjacent first light sources 2A and second light sources 2B, and appropriately change the shape of the projection lens 3 to match these multiple light sources 2A, 2B.

[0067] In the above embodiment, the vehicle lamps 1, 1A to 1C constituting the fog lamps are exemplified, but the present invention can be widely applied to vehicle lamps mounted on the front side of a vehicle as well as vehicle lamps mounted on the rear side of a vehicle.

[0068] Specifically, the present invention can be widely applied to vehicle lighting fixtures such as vehicle headlamps, position lamps, auxiliary headlamps, daytime running lamps (DRLs), lid lamps, tail lamps, brake lamps (stop lamps), backup lamps, and turn signal lamps.

[0069] Furthermore, the colors of the first and second light L1, L2 emitted by the first and second light sources 2A, 2B can also be changed appropriately depending on the application of the vehicle lamp, such as white light, red light, or orange light. [Explanation of symbols]

[0070] DESCRIPTION OF SYMBOLS 1, 1A, 1B, 1C...vehicle lamp 2A...first light source 2B...second light source 3...projection lens 3a...first light incident surface 3b...second light incident surface 3c...light output surface 4...lamp body 5...housing 6...outer lens 7...circuit board 8, 8A, 8B...rib wall 8a...first light incident / output surface 8b...second light incident / output surface 100...front bumper AX1...first optical axis AX2...second optical axis AX3...central axis HL...horizontal line L1...first light L2...second light

Claims

1. a first light source that emits a first light; a second light source disposed adjacent to the first light source in one direction and configured to emit second light in the same direction as the first light; a projection lens disposed in front of the first light source and the second light source and configured to project the first light and the second light in the same direction; the projection lens includes a first light incident surface located opposite the first light source and through which the first light emitted from the first light source is incident; a second light incident surface located on a side facing the second light source and allowing the second light emitted from the second light source to enter the interior of the light incident surface; a light exit surface that is located on the opposite side to the side where the first light incident surface and the second light incident surface are located, and that emits the first light and the second light to the outside, a rib wall is provided that protrudes from between the first light incident surface and the second light incident surface toward between the first light source and the second light source and extends in another direction intersecting the one direction, the rib wall includes a first light-entering / exiting surface located on a side opposite to a space between the first light source and the first light-entering surface, and a second light-entering / exiting surface located on a side opposite to a space between the second light source and the second light-entering surface, a portion of the first light emitted from the first light source enters the inside of the rib wall from the first light incident / exit surface, is emitted to the outside of the rib wall from the second light incident / exit surface, and then enters the inside of the projection lens from the second light incident surface; A vehicular lamp in which a portion of the second light emitted from the second light source enters the inside of the rib wall from the second light entrance / exit surface, is emitted to the outside of the rib wall from the first light entrance / exit surface, and then enters the inside of the projection lens from the first light entrance surface.

2. 2. The vehicle lamp according to claim 1, wherein the rib wall is formed by a part of the projection lens.

3. The vehicle lamp according to claim 2, wherein a step is provided between the first light entrance surface and the second light entrance surface with the rib wall interposed therebetween.

4. an optical axis of the first light emitted from the first light source and an optical axis of the second light emitted from the second light source are parallel to each other; 2. The vehicle lamp according to claim 1, wherein the first light incident surface and the second light incident surface refract the first light and the second light in a direction in which their optical axes intersect while the first light and the second light are incident into the projection lens.

5. 2. The vehicle lamp according to claim 1, wherein the other direction is a direction along the vertical direction.

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