JP6780963B2 - Vehicle lighting - Google Patents

Description

The present invention relates to a vehicle lamp.

Conventionally, there has been known a vehicle lamp having a configuration in which light incident from the end side is guided by a light guide portion and emitted from a surface along the light guide portion.
In the vehicle lighting equipment of Patent Document 1, an inner lens is formed in an elongated shape, and light from a light source is incident on one end of the inner lens to guide the light and emit it from a decorative portion.

Japanese Unexamined Patent Publication No. 2014-117960

In the conventional vehicle lighting equipment, when the light guide portion that emits light while guiding the light is wider than the light source, the amount of light is increased by arranging a plurality of light sources at the end, for example. Since the light incident on the light guide portion from each light source includes a large amount of light having a large angle with respect to the side surface of the light guide portion, the light is radiated to the outside from the side surface or the like during the light guidance, and the utilization efficiency of the light is improved. It was low.

In order to suppress the above phenomenon, a lens-shaped convex portion is provided at the end of the light guide portion to provide parallel light along the extending direction of the light guide portion, so that light is emitted from the side surface or the like to the outside during the light guide. It is possible to suppress the light emitted and improve the efficiency of light utilization.

However, in this case, a new problem has been found this time that a dark portion having low brightness is formed at a position corresponding to the adjacent light sources near the end portion.
That is, since light along the light guide portion is incident from a plurality of adjacent light sources, when the distance between the light sources is widened, no light is supplied from any light source to the position corresponding to the light sources in the vicinity of the end portion. A dark part is formed. Therefore, if a new light source is added between adjacent light sources, it is possible to supply light to the dark part, but the efficiency is rather lowered.

The present invention has been proposed in view of such conventional circumstances, and can emit light from a wide range of a wide light guide portion by using a small number of light sources while suppressing unevenness, and at the end portion on the incident side. It is an object of the present invention to provide a vehicle lamp that can sufficiently allow light to pass through and suppress the formation of dark areas.

In order to achieve the above object, the vehicle lighting equipment of one aspect of the present invention has an incident portion at which light from a light source is incident, and guides the light while being guided by a light guide portion extending from the incident portion. A vehicle lamp having a light guide body that emits the emitted light from a surface along the extending direction of the light guide portion, wherein a plurality of the light sources that emit diffused light are arranged in parallel, and the incident portion is , A plurality of convex portions provided so as to face each of the light sources and refracting light from the respective light sources in a direction along the extending direction of the light guide portion, and provided between the plurality of convex portions. A projection portion that reflects light from each of the light sources on the inner surface so as to follow the extending direction of the light guide portion, and the protrusion portion has a first surface facing one of the convex portions and the other. The first surface has a second surface facing the convex portion side of the above, and the first surface functions as an incident surface for incident light from the light source facing the convex portion, and the second surface is The vehicle lighting equipment is characterized in that it functions as an inner surface reflecting surface that internally reflects the light that has entered the inside of the light guide through the first surface .

According to the vehicle lighting equipment having this configuration, the light from each light source is incident on a plurality of convex portions provided facing each light source so as to follow the extending direction of the light guide portion, and is provided between the convex portions. It is configured so that it can be reflected by the protruding portion so as to follow the extending direction of the light guide portion. Therefore, the light along the extending direction of the light guide can be guided in a wide range in the extending direction of the light guide, and the light can be totally reflected in the light guide to be easily guided. As a result, the light radiated to the outside from the side surface or the like can be suppressed during the light guiding, and the light utilization efficiency can be improved.
Further, a plurality of light sources that emit diffused light to the end portion of the light guide body are arranged in parallel, and the light from each light source is internally reflected between the plurality of convex portions in the extending direction of the light guide portion. Since the protrusions along the protrusions are provided, it is possible to guide the light to the positions between the plurality of light sources and between the plurality of protrusions. Therefore, it is possible to suppress the formation of a dark portion due to insufficient light amount between a plurality of light sources in the vicinity of the end portion of the light guide portion.
Therefore, according to the above configuration, it is possible to efficiently emit light in a wide range of a wide light guide portion using a small number of light sources, and it is possible to sufficiently pass light to the end side to form a dark portion. Can be suppressed.

In the above-mentioned vehicle lamp, at least one of the pair of convex portions adjacent to each other has a surface shape in which the light incident from the light source is tilted toward the other convex portion and refracted. May be good.

According to the vehicle lamp of this configuration, one of the adjacent convex portions has a surface shape that refracts the incident light toward the other convex portion, so that the convex portions correspond to each other. It is possible to easily pass light to the light portion side and suppress the formation of dark portions.

In order to achieve the above object, the vehicle lighting equipment of another aspect of the present invention has an incident portion at the end where the light from the light source is incident, and guides the light while being guided by the light guide portion extending from the incident portion. A vehicle lamp equipped with a light guide body that emits the emitted light from a surface along the extending direction of the light guide portion, wherein a plurality of the light sources that emit diffused light are arranged in parallel, and the incident portion. Is provided between a plurality of convex portions provided facing each of the light sources and incident light from the respective light sources and refracted in a direction along the extending direction of the light guide portion, and between the plurality of convex portions. The projection portion is provided with a protrusion that reflects the light from each of the light sources on the inner surface so as to follow the extending direction of the light guide portion, and the protrusion portion has a first surface facing the convex portion side. It has a second surface facing the other convex portion side, and the first surface functions as an incident surface for incident light from the light source facing the one convex portion and the other convex portion. The second surface functions as an inner surface reflecting surface that internally reflects the light from the light source facing the other, and the second surface functions as an incident surface that receives the light from the light source facing the other convex portion. It is a vehicle lighting tool characterized in that it functions as an inner surface reflecting surface that internally reflects light from the light source facing the convex portion .

According to the vehicle lighting equipment of this configuration, the protrusions are configured to allow light from the light sources on both sides to be incident and internally reflected, and the incident surface to the light from the light source on one side is to the light from the light source on the other side. It becomes an inner reflection surface, and an incident surface for light from a light source on the other side becomes an inner reflection surface for light from a light source on one side. Therefore, each protrusion can be used in common for a plurality of light sources, and the efficiency of light utilization can be improved with a small number of protrusions.
The light from each light source is refracted so as to approach the direction along the extending direction of the light guide unit by being incident on the incident surface, and the light is reflected internally by the internal reflection surface to be incident on the light guide unit. .. Therefore, more light can travel in the direction along the extending direction of the light guide, and in a remarkable case, all the light incident on the protrusion is incident in the direction along the extending direction of the light guide. It is possible to make it.

In the above-mentioned vehicle lamp, the protrusion may be formed in a substantially triangular cross section including the first surface made of a flat surface and the second surface.

According to the vehicle lamp with this configuration, the shape of the protrusion is simpler than that of a curved surface and is easy to manufacture, and the direction of the light incident on the light guide by adjusting the inclination of the incident surface and the inner reflecting surface. Etc. are easy to control.

According to the present invention, it is possible to suppress unevenness and emit light from a wide range of a wide light guide portion by using a small number of light sources, and it is possible to sufficiently pass light to the incident side end portion to suppress the formation of a dark portion. Vehicle lighting fixtures can be provided.

It is a perspective view of the lighting fixture for a vehicle which concerns on one Embodiment. It is a front view which shows the end side of the vehicle lamp of FIG. It is a top view which shows the end side of the vehicle lamp of FIG. It is a front view which shows the end side of the vehicle lamp which has the incident part of the modification. It is a photograph which shows the result of an Example. It is a front view of the end side of the vehicle lamp of the comparative example. It is a photograph which shows the result of the comparative example.

Hereinafter, a vehicle lighting fixture according to an embodiment of the present invention will be described with reference to the drawings.
In the drawings used in the following description, in order to make the features easy to understand, the featured portions may be enlarged for convenience, and the dimensional ratios of the respective components may not be the same as the actual ones.

FIG. 1 is a perspective view of a vehicle lamp 10 according to an embodiment, FIG. 2 is a front view showing an end side of the vehicle lamp 10 of FIG. 1, and FIG. 3 is a front view for a vehicle of FIG. It is a top view which shows the end side of a lamp 10.
In each drawing, the XYZ coordinate system is shown as a three-dimensional Cartesian coordinate system as appropriate. In the XYZ coordinate system, the Z-axis direction is the vertical direction (vertical direction), and the + Z direction is the upward direction. Further, the Y-axis direction is the front-rear direction, the −Y direction is the emission direction of the vehicle lighting tool 10, and the + Y direction is the back surface side. Further, the X-axis direction is the left-right direction (width direction).

The vehicle lamp 10 includes a light guide body 11 for displaying a design by light when light is guided and emitted, and a light source 13 for supplying light to the light guide body 11.

The light guide body 11 has an incident portion 15 at the end to which light from the light source 13 is incident, and is provided by a light guide portion 17 extending in one direction (in the present embodiment, the left-right direction (X-axis direction)) from the incident portion 15. While guiding the light, it is configured to emit the guided light from the display unit 17a formed of the surface along the extending direction of the light guide unit 17.

The light source 13 is composed of an LED or the like that emits diffused light, and in the present embodiment, a plurality of light sources 13 are arranged in parallel in the vertical direction (Z-axis direction) and arranged on the incident portion 15 side of the light guide body 11. There is.

As shown in FIG. 2, the incident portion 15 includes a plurality of (two in the present embodiment) convex portions 21 arranged in the vertical direction, and a protruding portion 23 provided between the convex portions 21. .. The convex portion 21 causes light from each light source 13 to be incident and refracts in a direction along the extending direction (X-axis direction) of the light guide portion 17. The protrusion 23 reflects the light from each light source 13 on the inner surface so as to follow the extending direction of the light guide portion 17.

Each convex portion 21 is arranged so as to face one light source 13. The convex portion 21 has a curved surface shape having a uniform cross section in the front-rear direction (Y-axis direction) of emission. The curved surface shape of the convex portion 21 projects toward the opposite light source 13 side. The curved shape of the convex portion 21 refracts the light emitted from the light source 13 in the diffusion direction to form a parallel light L1 along the extending direction of the light guide portion 17. Here, the parallel light L1 along the extending direction means that the light paths seen from the light emitting direction (Y-axis direction) are parallel, and the light L1 is defined in the thickness direction. It is moving in various directions (see Fig. 3).
The convex portion 21 does not necessarily have to make the incident light parallel light, but the incident light satisfies the total reflection condition at the end faces (that is, the upper surface and the lower surface) in the vertical direction (Z-axis direction) of the light guide portion 17. It is preferable that the shape is bent at an angle in the range.

The protrusion 23 is formed so as to project between the pair of light sources 13. The protrusion 23 has a first surface 23a and a second surface 23b made of a flat surface, and is formed in a substantially triangular shape by the first surface 23a and the second surface 23b. The protrusion 23 has a uniform cross section in the front-rear direction (Y-axis direction) of emission.

Here, of the pair of convex portions 21 that sandwich the protrusion 23, one is referred to as the first convex portion 21A and the other is referred to as the second convex portion 21B. Of the two light sources 13, the light source 13 facing the first convex portion 21A is referred to as the first light source 13A, and the light source 13 facing the second convex portion 21B is referred to as the second light source 13B.
The first surface 23a of the protrusion 23 faces the first convex portion 21A side. Further, the second surface 23b of the protrusion 23 faces the second convex portion 21B side.

The first surface 23a and the second surface 23b of the protrusion 23 each have a function different from that of the convex portion 21. That is, the convex portion 21 has a function of refracting the light from the opposing light source 13 to enter, while the first surface 23a and the second surface 23b each have a plurality of functions. There is.

Specifically, as shown in FIG. 2, the first surface 23a functions as an incident surface for incident light from the first light source 13A and internally reflects light from the second light source 13B. Functions as a surface. Similarly, the second surface 23b functions as an incident surface for incident light from the second light source 13B and as an inner reflecting surface for internally reflecting the light from the first light source 13A.

The light guide portion 17 of the light guide body 11 is formed in a long length extending in the left-right direction (X-axis direction) from the translucent material, and has a thickness (dimension (Y-axis direction) dimension). It has a wide shape (the size in the vertical direction (Z-axis direction) is large). An incident portion 15 is provided on one end side of the light guide body 11, and the incident light is continuously guided along the extending direction to the other end side. The light guide portion 17 of the present embodiment is formed so that the depth dimension gradually decreases from the incident portion 15 along the extending direction.

As shown in FIG. 3, the light guide unit 17 has a display unit 17a as an exit surface for emitting light passing through the inside, and a back surface 17b located on the opposite side of the display unit 17a. The back surface 17b of the light guide unit 17 is provided with a scattering structure 25 such as a cut surface or a rough surface on which a part of the light guiding the inside of the light guide unit 17 can reach and be reflected. Further, the display unit 17a is formed smoothly. The light passing through the light guide unit 17 is reflected by the scattering structure 25 toward the display unit 17a and emitted to the outside from the display unit 17a. Therefore, when the light source 13 is turned on, various designs are formed by the light reflected by the scattering structure 25 and emitted to the outside, and are visually recognized from the outside.

Next, the operation of the vehicle lamp 10 will be described.
In the vehicle lamp 10, by turning on the plurality of light sources 13 on the end side, the light from the light source 13 is incident on the incident portion 15 of the light guide body 11, and the light is widely emitted from the side surface of the light guide portion 17. Is used.

First, the light L1 that enters the convex portion 21 will be described.
As shown in FIG. 2, the light L1 emitted from the light source 13 and entering the convex portion 21 is refracted by the curved surface shape of the convex portion 21 to guide the light L1 in parallel along the extending direction of the light guide portion 17. Will be done. By making the light L1 incident from the convex portion 21 parallel along the extending direction, the light L1 can reach far from the incident portion 15 along the extending direction of the light guide portion 17.

Next, the light L2 that enters the protrusion 23 will be described.
Of the light emitted from the first light source 13A, a part of the light L2a directed outward in the vertical direction from the opposite first convex portion 21A is incident on the first surface 23a of the protrusion 23. The light L2a enters the inside of the light guide 11 while refracting on the first surface 23a. Further, the light L2a is internally reflected on the second surface 23b of the protrusion 23 in the direction along the extending direction of the light guide portion 17.
Similarly, of the light emitted from the second light source 13B, a part of the light L2b that goes outward in the vertical direction from the opposite second convex portion 21B is refracted by the second surface 23b of the protrusion 23. Incident. Further, the light L2b is internally reflected on the first surface 23a in the direction along the extending direction of the light guide portion 17.

As a result, the light L2a and L2b can be guided to the light guide portion 17 corresponding between the first and second light sources 13A and 13B and between the first and second convex portions 21A and 21B.

As a result, light can be effectively guided from the end portion over a wide range of the light guide portion 17. Then, the guided light is diffusely reflected by the diffused reflection portion provided on the side surface of the light guide portion, so that the light can be emitted in a wide range in the extending direction of the light guide portion 17, which is excellent in lighting. The design can be displayed on the entire light guide unit 17. That is, according to the present embodiment, it is possible to suppress the shortage of the amount of light between the light sources 13 in the vicinity of the end portion of the light guide unit 17 and realize uniform light emission of the display unit 17a.

In particular, as shown in FIG. 2, in the present embodiment, the first surface 23a of the protrusion 23 is in a direction in which the light L2b is inclined toward the second convex portion 21B with respect to the extending direction (X-axis direction). Exit. Further, the second surface 23b emits the light L2a in a direction inclined toward the first convex portion 21A with respect to the extending direction (X-axis direction). As a result, the lights L2a and L2b internally reflected by the first and second surfaces 23a and 23b travel so as to intersect each other, and are between the first and second convex portions 21A and 21B in the light guide unit 17. Light is effectively guided to the area of. Therefore, according to the present embodiment, the formation of the dark portion can be suppressed more effectively.

(Summary)
According to the vehicle lamp 10 of the present embodiment, in the incident portion 15, the light from each light source 13 is incidented by a plurality of convex portions 21 provided facing each light source 13, and the light guide portion 17 is extended. In addition to being along the current direction, it can be reflected by the protrusions 23 provided between the convex portions 21 to be along the extending direction of the light guide portion 17. Therefore, the light along the light guide unit 17 can be guided in a wide range in the extending direction of the light guide unit 17, and the light can be completely reflected in the light guide unit 17 to be easily guided. As a result, the light radiated to the outside from the side surface or the like can be suppressed during the light guiding, and the light utilization efficiency can be improved.
Further, a plurality of light sources 13 that emit diffused light to the end portion of the light guide body 11 are arranged in parallel, and the light from each light source 13 is internally reflected between the plurality of convex portions 21 to be reflected inside the light guide portion 17. Since the protrusion 23 is provided along the extending direction of the light source, it is possible to inject light at a position between the plurality of light sources 13 and between the plurality of convex portions 21. Therefore, it is possible to suppress the formation of a dark portion due to insufficient light amount between the plurality of light sources 13 in the vicinity of the end portion of the light guide portion 17.
Therefore, according to the present embodiment, it is possible to efficiently emit light to a wide range of the wide light guide unit 17 by using a small number of light sources 13, and it is possible to sufficiently pass light to the end side, so that the dark part can be sufficiently transmitted. Can suppress the formation of.

According to the vehicle lighting equipment 10 of the present embodiment, the protrusion 23 is configured to allow light from the light sources 13 on both sides to be incident and internally reflected, and the incident surface to the light from the light source 13 on one side is on the other side. It becomes an inner reflection surface for the light from the light source 13, and the incident surface for the light from the light source 13 on the other side becomes the inner reflection surface for the light from the light source 13 on the one side. Therefore, each protrusion 23 can be commonly used for a plurality of light sources 13, and the efficiency of light utilization can be improved with a small number of protrusions.
The light from each light source 13 is refracted so as to approach the direction along the extending direction of the light guide unit 17 by being incident on the incident surface, and the light is internally reflected by the internal reflection surface to be reflected on the inner surface of the light guide unit 17. To be incident on. Therefore, more light can be emitted in the direction along the extending direction of the light guide portion 17, and in a remarkable case, all the light incident on the protrusion 23 can be incident in the direction along the extending direction of the light guide portion 17. It is possible.

According to the vehicle lamp 10 of the present embodiment, the protrusion 23 is formed in a substantially triangular cross section composed of a first surface 23a and a second surface 23b formed of a flat surface. Therefore, the shape of the protrusion 23 is simpler than that of a curved surface or the like, and it is easy to manufacture, and it is easy to control the direction of the light incident on the light guide 17 by adjusting the inclinations of the incident surface and the inner reflecting surface. ..

(Modification example)
FIG. 4 is a front view showing an incident portion 115 of a modified example that can be adopted in the above-described embodiment.
The incident portion 115 of this modification is different from the incident portion 15 of the above-described embodiment mainly in the surface shapes of the first convex portion 121A and the second convex portion 121B.
The components having the same aspects as those in the above-described embodiment are designated by the same reference numerals, and the description thereof will be omitted.

Similar to the above-described embodiment, the incident portion 115 of the present modification includes a plurality of (two in the present embodiment) convex portions 121 arranged in the vertical direction and a protruding portion 23 provided between the convex portions 121. , Is equipped. In the following description, if necessary, the pair of convex portions 121 that sandwich the protrusion 23 are referred to as a first convex portion 121A and a second convex portion 121B, respectively.

The first convex portion 121A of this modification is arranged so as to face the first light source 13A. The first convex portion 121A has a surface shape in which at least a part of the light incident from the first light source 13A is tilted toward the second convex portion 121B and refracted.

The surface shape of the first convex portion 121A will be described more specifically. The curved surface shape of the first convex portion 121A includes a first region FA1 located on the side of the second convex portion 121B with respect to the optical axis L13A of the first light source 13A and a second region FA2 located on the opposite side. It is divided into. The curved surface shape of the second region FA2 is obtained by refracting the light emitted from the first light source 13A in the diffusion direction to obtain parallel light LA2 along the extending direction of the light guide unit 17. On the other hand, the curved surface shape of the first region FA1 has a larger radius of curvature than the curved surface shape of the second region FA2. The curved surface shape of the first region FA1 is a direction in which the light emitted from the first light source 13A in the diffusion direction is refracted and tilted toward the second convex portion 121B with respect to the extending direction of the light guide portion 17. Let's call it LA1. It is preferable that the light LA1 emitted from the first region FA1 is in a direction that allows total internal reflection at the vertical end faces of the light guide unit 17.

The second convex portion 121B has the same configuration as the first convex portion 121A. That is, the second convex portion 121B has a surface shape in which at least a part of the light incident from the second light source 13B is tilted toward the first convex portion 121A and refracted.

According to this modification, of the pair of adjacent convex portions 121, one convex portion 121 (for example, the first convex portion 121A) directs the light incident from the light source 13 to the other convex portion 121 (for example, the second convex portion 121A). It has a surface shape that can be tilted toward the convex portion 121B) and refracted. This makes it possible to guide the light LA1 to the light guide portion 17 corresponding between the first and second light sources 13A and 13B and between the first and second convex portions 121A and 121B. Therefore, according to this modification, it is possible to suppress the shortage of the amount of light between the light sources 13 in the vicinity of the end of the light guide unit 17 and to realize uniform light emission of the display unit 17a.

In this modified example, the case where the pair of convex portions 121 both emit light inclined toward the other convex portion side is illustrated. However, of the pair of adjacent convex portions 121, at least one convex portion 121 (for example, the first convex portion 121A) tilts the light incident on the other convex portion 121 (for example, the second convex portion 121B). If it has a structure to bend it, a certain effect can be obtained.
Further, in this modification, the example in which the incident portion 115 has two convex portions 121 has been described, but the incident portion 115 may have three or more convex portions 121. In that case, it is preferable that the curved shape of the convex portion 121 in the center is configured to reflect light toward the convex portions 121 on both sides thereof.

Although the embodiments of the present invention and variations thereof have been described above, each configuration and combinations thereof are examples, and additions, omissions, substitutions, and other configurations of the configurations are added, omitted, replaced, and the like without departing from the spirit of the present invention. It can be changed. Moreover, the present invention is not limited to the embodiments.
For example, in the above-described embodiment, an example in which the shapes of the convex portions 21 and 121 have a uniform cross section in the front-rear direction (Y-axis direction) of emission has been described, but the shape is not particularly limited. For example, in order for the light incident from the incident portions 15 and 115 to reach farther along the extending direction of the light guide portion 17, the convex portions 21 and 121 may be curved along the emission front-rear direction.
Further, in the above-described embodiment, the case where the light guide unit 17 extends linearly is illustrated, but the light guide unit 17 is curved in the front-rear direction (Y-axis direction) or the vertical direction (X-axis direction) of the emission. You may be.

Next, Examples and Comparative Examples will be described.
[Example]
The vehicle lighting equipment 10 was configured by arranging LEDs facing the convex portions 21 at the incident portion of the light guide body 11 shown in FIGS. 1 to 3.
The vehicle lamp 10 was turned on under the same measurement conditions as in the comparative example described later.
The result is shown in the photograph of FIG.

[Comparison example]
As shown in FIG. 6, two convex portions 1021 are provided at the end of the light guide portion 1017, and the projecting surface shapes of the convex portions on both sides are made continuous without providing a protrusion between the convex portions 1021. , The vehicle lighting fixture 1010 of the comparative example was produced with the same configuration as that of the embodiment.
The vehicle lamp 10 was turned on under the same measurement conditions as in the embodiment.
The result is shown in the photograph of FIG.

As is clear from comparing FIG. 5 according to the embodiment with FIG. 7 according to the comparative example, as shown in FIG. 7, in the comparative example, the light guide portion 17 corresponds to the space between the two convex portions on the end side. A dark portion D is formed at the position where the light is formed. On the other hand, in the embodiment in which the protrusion 23 is formed between the two convex portions 21, a dark portion is not formed at the position corresponding between the two convex portions on the end side of the light guide portion 17, and the dark portion is not formed at the time of lighting. We were able to realize an excellent design.

10 ... Vehicle lighting equipment 11 ... Light guide 13 ... Light source 15, 115 ... Incident part 17 ... Light guide 17a ... Display 17b ... Back surface 21, 121 ... Convex 23 ... Projection 23a ... First surface 23b ... First Surface 25 of 2 ... Scattered structure

Claims (4)

It has an incident portion at the end where the light from the light source is incident, and while guiding the light by the light guide portion extending from the incident portion, the guided light is emitted from the surface along the extending direction of the light guide portion. A vehicle lamp equipped with a light guide
A plurality of the light sources that emit diffused light are arranged in parallel.
The incident portion includes a plurality of convex portions provided facing the respective light sources and incident light from the respective light sources and refracted in a direction along the extending direction of the light guide portion, and the plurality of convex portions. Provided between them, a protrusion that reflects the light from each of the light sources on the inner surface so as to follow the extending direction of the light guide portion .
The protrusion has a first surface facing the convex side and a second surface facing the convex side of the other.
The first surface functions as an incident surface for incident light from the light source facing the convex portion.
The second surface is a vehicle lighting tool that functions as an inner surface reflecting surface that internally reflects light that has entered the inside of the light guide through the first surface . The first aspect of the present invention is characterized in that at least one of the pair of convex portions adjacent to each other has a surface shape in which light incident from the light source is tilted toward the other convex portion and refracted. The vehicle lighting equipment described. It has an incident portion at the end where the light from the light source is incident, and while guiding the light guide portion extending from the incident portion, the guided light is emitted from the surface along the extending direction of the light guide portion. A vehicle lamp equipped with a light guide
A plurality of the light sources that emit diffused light are arranged in parallel.
The incident portion includes a plurality of convex portions provided facing the respective light sources and incident light from the respective light sources and refracted in a direction along the extending direction of the light guide portion, and the plurality of convex portions. Provided between them, a protrusion that reflects the light from each of the light sources on the inner surface so as to follow the extending direction of the light guide portion.
The protrusion has a first surface facing the convex side of one side and a second surface facing the convex side of the other.
The first surface functions as an incident surface for incident light from the light source facing the convex portion, and also serves as an internal reflecting surface for internally reflecting light from the light source facing the convex portion on the other side. Function,
The second surface functions as an incident surface for incident light from the light source facing the other convex portion, and also serves as an inner reflecting surface for internally reflecting the light from the light source facing the other convex portion. The vehicle lighting fixture according to claim 1 or 2, characterized in that it functions. The vehicle according to any one of claims 1 to 3 , wherein the protrusion is formed in a substantially triangular cross section formed of the first surface formed of a flat surface and the second surface. Lighting equipment.