Vehicle lamp

Abstract

To provide a vehicular lighting fixture capable of properly performing light distribution control of an inner lens.SOLUTION: A vehicular lighting fixture 100 includes: a light source 10; a first light guide body 20 which has a rod-like shape, and which guides light from the light source 10 in the longer direction and emits it in a predetermined direction which is a lateral side with respect to the longer direction; and an inner lens 30 which guides light emitted from the first light guide body 20 and emits it at least in the front direction in a state of being mounted on a vehicle. The inner lens 30 has a rod-like second light guide body 40 which has an end surface and a side surface. The second light guide body 40 is arranged opposing to the first light guide body 20 in a state where the end surface has a gap in a predetermined direction between itself and the first light guide body 20 so that the light emitted from the first light guide body 20 enters, and the side surface is formed so as to emit the light which has entered inside from the end surface at least in the front direction.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] The present invention relates to vehicle lamps.

Background Art

[0002] A vehicle lamp configured to make light from a light source enter a plate-shaped inner lens and exit from the inner lens to the front of the vehicle is known (see, for example, Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In the vehicle lamp described in Patent Document 1, when increasing the area of the light-emitting portion, it is necessary to increase the area of the exit surface of the inner lens. When the area of the exit surface of the inner lens increases, it becomes difficult to perform light distribution control for uniformly emitting light from the inner lens.

[0005] The present invention has been made in view of the above, and an object thereof is to provide a vehicle lamp capable of appropriately performing light distribution control of an inner lens.

Means for Solving the Problems

[0006] The vehicle lamp according to the present invention includes a light source, a first light guide that is rod-shaped and guides the light from the light source in the longitudinal direction and emits the light in a predetermined direction that is lateral with respect to the longitudinal direction, and an inner lens that guides the light emitted from the first light guide and emits the light at least in the front direction in the vehicle-mounted state. The inner lens has a rod-shaped second light guide having an end face and a side face. The second light guide is arranged to face the first light guide with a gap in the predetermined direction between the end face and the first light guide so that the light emitted from the first light guide enters, and the side face is formed so as to emit the light incident from the end face into the interior at least in the front direction.

[0007] In the above vehicle lamp, a plurality of the second light guides may be arranged in the longitudinal direction of the first light guide.

[0008] In the above vehicle lamp, the plurality of second light guides may be arranged so as to extend along the predetermined direction.

[0009] In the above vehicle lamp, the first light guide may extend so as to curve toward the back side toward the outside of the vehicle in the vehicle-mounted state.

[0010] In the above vehicle lamp, the plurality of second light guides may be arranged so that there is no gap between adjacent second light guides when viewed from the front side.

[0011] In the above vehicle lamp, the inner lens may have a plate-shaped light guide that is connected to the second light guide, allows the light from the first light guide to enter the interior, and guides and emits the light incident into the interior.

[0012] In the above vehicle lamp, a plurality of the second light guides may be arranged at intervals in the longitudinal direction of the first light guide, and the plate-shaped light guide may connect between adjacent second light guides.

[0013] In the above vehicle lamp, the first light guide may be arranged along the horizontal plane in the vehicle-mounted state, and the second light guide may be arranged to intersect the horizontal plane in the vehicle-mounted state.

[0014] In the above vehicle lamp, for a plurality of the second light guides, the light emission direction in at least one of the vertical direction and the horizontal direction in the vehicle-mounted state can be individually set.

Effect of the Invention

[0015] According to the present invention, it becomes possible to appropriately perform the light distribution control of the inner lens.

Brief Description of the Drawings

[0016]

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DETAILED DESCRIPTION OF THE INVENTION

[0017] Hereinafter, embodiments of the vehicle lamp according to the present invention will be described with reference to the drawings. Note that the present invention is not limited by this embodiment. Also, the components in the following embodiments include those that can be replaced by those skilled in the art and are easy to replace, or those that are substantially the same.

[0018] In the present embodiment, each direction on the front side and the rear side is, for example, the direction in a state where the vehicle is mounted (vehicle-mounted state). For example, in a state where it is mounted on the front part (front) of the vehicle, the front is the front direction (front side), and the rear is the rear direction (rear side). Also, in a state where it is mounted on the rear part (rear) of the vehicle, the rear is the front direction (front side), and the front is the rear direction (rear side). Further, in a state where it is mounted on the side part (side) of the vehicle, the outside of the vehicle is the front direction (front side), and the inside of the vehicle is the rear direction (rear side).

[0019] FIG. 1 is a view showing an example of the rear part of a vehicle 1 according to the present embodiment. As shown in FIG. 1, the vehicle 1 includes a vehicle body 2, a traveling device 3, and a vehicle lamp 100. The vehicle body 2 has a driver's cab where a driver rides. The vehicle body 2 is supported by the traveling device 3. The traveling device 3 has wheels to which tires 4 are attached, a steering device for changing the traveling direction of the vehicle 1, and a braking device for decelerating or stopping the traveling device 3. The vehicle 1 includes an entrance / exit door provided on the side part of the vehicle body 2 and a back door 7 provided on the rear part of the vehicle body 2. The entrance / exit door and the back door 7 are each movably supported by the vehicle body 2 via a hinge mechanism.

[0020] In this embodiment, the vehicle lamp 100 is provided on each of the left and right sides of the rear part of the vehicle body 2. In this embodiment, the vehicle lamp 100 is provided at the rear part of the vehicle body 2. Therefore, the rear side in the front-rear direction is regarded as the front side of the vehicle lamp 100, and the front side in the front-rear direction is regarded as the rear side of the vehicle lamp 100 for explanation.

[0021] The vehicle lamp 100 includes functional lamps. Examples of the functional lamps include a tail lamp provided at the rear part of the vehicle body 2 and lit in conjunction with the lighting of the headlamp, a stop lamp provided at the rear part of the vehicle body 2 and lit in conjunction with the operation of the braking device, and a rear turn signal lamp provided at the rear part of the vehicle body 2 and lit to indicate the traveling direction of the vehicle 1 to the surroundings.

[0022] The vehicle lamps 100 are arranged on the vehicle body 2 side, respectively, for example. In this embodiment, the vehicle body 2 is a fixed part. Also, the back door 7 is a movable part. The structure of the vehicle lamp 100 provided on the left side of the rear part of the vehicle body 2 and the structure of the vehicle lamp 100 provided on the right side of the rear part of the vehicle body 2 are symmetric in the left-right direction and have substantially the same structure. Hereinafter, the vehicle lamp 100 provided on the right side of the rear part of the vehicle body 2 will be mainly described, and the description of the vehicle lamp 100 provided on the left side of the rear part of the vehicle body 2 will be simplified or omitted.

[0023] FIG. 2 is a view showing an example of the vehicle lamp 100. FIG. 2 shows a configuration along the A-A cross section in FIG. 1. As shown in FIG. 2, the vehicle lamp 100 includes a light source 10, a first light guide 20, an inner lens 30, a housing 60, and an outer lens 70. The vehicle lamp 100 has a configuration in which the light source 10, the first light guide 20, and the inner lens 30 are housed in a lamp chamber 80 surrounded by the housing 60 and the outer lens 70. The vehicle lamp 100 has a shape that curves or bends toward the rear side from the vehicle inner side to the vehicle outer side, so-called a slant shape.

[0024] FIG. 3 is a diagram showing the configuration inside the lamp chamber 80 in the vehicle lamp 100. FIG. 3 shows an example when viewed from the right side. As shown in FIGS. 2 and 3, as the light source 10, a semiconductor light source such as an LED, a laser light source, or the like is used. The light source 10 has a light emitting surface 11 that emits light.

[0025] The first light guide 20 is rod-shaped. The first light guide 20 extends, for example, from the inside of the vehicle toward the outside of the vehicle and curves toward the back side so as to follow the slant shape of the vehicle lamp 100. In the present embodiment, the first light guide 20 is disposed on the front side with respect to the light source 10.

[0026] The first light guide 20 has an end face 21 and a side face 22. The end face 21 faces the light emitting surface 11 of the light source 10. The end face 21 is disposed in a state of facing the light emitting surface 11 of the light source 10. The end face 21 causes the light from the light source 10 to enter the inside of the first light guide 20. In the first light guide 20, the end face 21 is disposed, for example, at an end on the outside and back side of the vehicle. With this shape, the light from the light source 10 can be appropriately guided inside the vehicle lamp 100 having a slant shape.

[0027] The side face 22 emits the light that has entered the inside. A prism portion 22a is formed on the lower end side in the vehicle-mounted state on the side face 22. The prism portion 22a reflects the light that has entered from the end face 21 and is internally reflected by the side face 22 in a predetermined direction, that is, upward in the vehicle-mounted state. The light reflected by the prism portion 22a is emitted upward from the side face 22 of the first light guide 20.

[0028] The inner lens 30 guides the light emitted from the first light guide 20 and emits it at least in the front direction in the vehicle-mounted state. The inner lens 30 has a second light guide 40 and a plate-shaped light guide 50. The second light guide 40 and the plate-shaped light guide 50 are provided, for example, as a single member.

[0029] The second light guide 40 is rod-shaped. The second light guide 40 extends linearly, for example, along the vertical direction. The second light guide 40 has an end face 41 and a side face 42. The end face 41 faces the side face 22 of the first light guide 20. The second light guide 40 is arranged such that the end face 41 faces the side face 22 of the first light guide 20 with a gap D in a predetermined direction (upward) therebetween. The end face 41 allows the light emitted from the side face 22 of the first light guide 20 to enter therein.

[0030] The side face 42 emits the light that has entered therein. A prism portion 42a is formed on the back side in the vehicle-mounted state on the side face 42. The prism portion 42a reflects the light that has entered from the end face 41 and is internally reflected by the inner surface of the side face 42 to the front side in the vehicle-mounted state. The light reflected by the prism portion 42a is emitted from the side face 42 of the second light guide 40 in the front direction. In the present embodiment, the light reflected by the prism portion 42a is emitted, for example, from the side face 42 to the rear of the vehicle.

[0031] The plate-shaped light guide 50 is integrally formed with the second light guide 40. The plate-shaped light guide 50 connects between adjacent second light guides 40. The plate-shaped light guide 50 is, for example, flat plate-shaped and is arranged along the vertical direction corresponding to the second light guide 40. The plate-shaped light guide 50 has an incident surface 51, a reflection surface 52, and an emission surface 53.

[0032] The incident surface 51 faces the side face 22 of the first light guide 20. The incident surface 51 is arranged to face the end face 21 of the first light guide 20. The incident surface 51 allows the light emitted from the end face 21 to enter the inside of the second light guide 40.

[0033] The reflection surface 52 has a prism portion 52a formed on the back side in the vehicle-mounted state. The prism portion 52a reflects the light that has entered from the incident surface 51 and is internally reflected by each surface of the plate-shaped light guide 50 to the emission surface 53 side.

[0034] The exit surface 53 emits the light reflected by the prism portion 52a. In the present embodiment, as will be described later, the exit surface 53 emits the light reflected by the prism portion 52a in the normal direction of the exit surface 53, that is, obliquely rearward or laterally of the vehicle.

[0035] The housing 60 holds the light source 10, the first light guide 20, and the inner lens 30. A gap D is provided between the above-described first light guide 20 and the inner lens 30 (the second light guide 40 and the plate-shaped light guide 50). The housing 60 holds the first light guide 20 and the inner lens 30 separately while leaving a gap D between the first light guide 20 and the inner lens 30 (the second light guide 40 and the plate-shaped light guide 50).

[0036] The outer lens 70 houses the light source 10, the first light guide 20, and the inner lens 30 between it and the housing 60. The outer lens 70 transmits the light emitted from the second light guide 40 rearward of the vehicle.

[0037] Next, the operation of the vehicle lamp 100 configured as described above will be described. FIGS. 4 and 5 are diagrams showing an example of the operation of the vehicle lamp 100. When a predetermined operation for lighting the turn lamp, such as an operation of the direction indicator or a hazard switch, is performed by the driver, the vehicle lamp 100 acquires an operation signal from the operation device. A control circuit provided on a substrate or the like of the light source 10 performs emission control of the light source 10 according to the acquired signal.

[0038] As shown in FIG. 3, light L1 and L2 are emitted from the emission surface 11 of the light source 10. Among these, the light L1 enters the first light guide 20 from the end surface 21, is internally reflected by the prism portion 22a on the side surface 22, and is emitted from the emission portion 22b.

[0039] As shown in FIGS. 4 and 5, the light L1 emitted from the emission unit 22b enters the second light guide 40 from the end face 41 and is internally reflected by the prism portion 42a on the side face 42, and then is emitted from the emission face 43. The light L1 emitted from the emission face 43 passes through the outer lens 70, for example, as shown in FIG. 4, and is emitted to a predetermined range from the front side of the vehicle lamp 100 to the outside of the vehicle.

[0040] In the example shown in FIG. 4, among the plurality of second light guides 40, a part (for example, four) of the second light guides 40 arranged on the vehicle inner side are set to emit the light L1 toward the front side. Further, the second light guides 40 arranged on the vehicle outer side with respect to these second light guides 40 emit the light L1 in a direction inclined toward the vehicle outer side with respect to the front direction. In this case, as it reaches the vehicle outer side, the emission direction of the light L1 from the second light guide 40 is set to incline toward the vehicle outer side.

[0041] In this way, by presetting the reflection direction of the prism portion 42a for each second light guide 40, it is possible to set the emission direction of the light L1 for each second light guide 40. Thereby, as shown in FIG. 4, the light L1 can be emitted to a wide range from the front side of the vehicle lamp 100 to the outside of the vehicle.

[0042] Also, as shown in FIG. 5, the reflection direction of the prism portion 42a may be set to incline in the vertical direction with respect to the horizontal direction. In this case, the emission direction of the light L1 in the vertical direction can be changed for each second light guide 40. Note that, in all the second light guides 40, the reflection direction of the prism portion 42a may be set to the front side and the horizontal direction. In this case, the light L1 is emitted uniformly rearward of the vehicle and in the horizontal direction.

[0043] On one hand, as shown in FIG. 3, the light L2 emitted from the light emitting surface 11 enters the inside from the incident surface 51 of the plate-shaped light guide 50. This light L2 is internally reflected by the prism portion 52a of the reflecting surface 52 as shown in FIG. 4 and is emitted from the emission surface 53 in the normal direction of the emission surface 53. The emission surface 53 is inclined outward of the vehicle with respect to the front direction of the vehicle lamp 100 as a whole. Therefore, in the plate-shaped light guide 50, the light L2 is emitted obliquely or laterally with respect to the front direction from the emission surface 53. The light L2 emitted from the emission surface 53 passes through the outer lens 70 and is emitted obliquely rearward or laterally of the vehicle.

[0044] Compared with the plate-shaped light guide 50 disposed inside the vehicle, the plate-shaped light guide 50 disposed outside the vehicle is arranged such that the emission surface 53 faces more outward of the vehicle. That is, the plate-shaped light guide 50 is arranged such that the emission surface 53 gradually faces more outward of the vehicle from the inside to the outside of the vehicle. For this reason, in the plate-shaped light guide 50, from the inside to the outside of the vehicle, the emission direction of the light L2 gradually changes from obliquely rearward of the vehicle to the outside of the vehicle. Therefore, from the plurality of plate-shaped light guides 50, the light L2 is emitted in a range from obliquely rearward of the vehicle to the outside of the vehicle.

[0045] As described above, the vehicle lamp 100 according to the present embodiment includes a light source 10, a first light guide 20 that is rod-shaped, guides the light from the light source 10 in the longitudinal direction, and emits the light in a predetermined lateral direction with respect to the longitudinal direction, and an inner lens 30 that guides the light emitted from the first light guide 20 and emits the light at least in the front direction in the vehicle-mounted state. The inner lens 30 has a rod-shaped second light guide 40 having an end surface 41 and a side surface 42. The second light guide 40 is disposed to face the first light guide 20 with a gap D in a predetermined direction between the end surface 41 and the first light guide 20 so that the light emitted from the first light guide 20 enters, and the side surface 42 is formed so as to guide the light incident inside, internally reflect the light, and emit the light in the front direction.

[0046] According to this configuration, since the inner lens 30 has the second light guide 40, and the second light guide 40 guides the light emitted from the first light guide 20, internally reflects it, and emits it in the front direction, by adjusting the dimensions of the second light guide 40, for example, even when the area of the light-emitting portion of the inner lens 30 increases in a predetermined direction, the light can be appropriately guided in the predetermined direction. Thereby, the light distribution control of the inner lens 30 can be appropriately performed.

[0047] In the vehicle lamp 100 according to the present embodiment, a plurality of the second light guides 40 are arranged in the direction in which the first light guide 20 extends. According to this configuration, since a plurality of the second light guides 40 are provided along the direction in which the first light guide 20 extends, for example, even when the area of the light-emitting portion of the inner lens 30 expands in the longitudinal direction of the first light guide 20, the light distribution control can be appropriately performed.

[0048] In the vehicle lamp 100 according to the present embodiment, the plurality of second light guides 40 are arranged so as to extend along a predetermined direction. According to this configuration, the light distribution control can be performed in a well-balanced manner by the plurality of second light guides 40.

[0049] In the vehicle lamp 100 according to the present embodiment, the first light guide 20 extends so as to curve toward the back side from the vehicle inner side toward the vehicle outer side in the vehicle-mounted state, and the plurality of second light guides 40 are provided so as to emit light from the front side in the vehicle-mounted state among the side surfaces 42. According to this configuration, even when the first light guide 20 extends so as to curve toward the back side from the vehicle inner side toward the vehicle outer side, the light distribution control can be appropriately performed.

[0050] In the vehicle lamp 100 according to the present embodiment, the inner lens 30 is connected to the second light guide 40 and has a plate-shaped light guide 50 that allows the light from the first light guide 20 to enter internally, guides the light that has entered internally, and emits it. According to this configuration, since the inner lens 30 has the second light guide 40 and the plate-shaped light guide 50, the light distribution can be appropriately controlled by the second light guide 40 and the plate-shaped light guide 50.

[0051] In the vehicle lamp 100 according to the present embodiment, a plurality of second light guide bodies 40 are arranged at intervals in the direction in which the first light guide body 20 extends, and the plate-shaped light guide body 50 may connect between adjacent second light guide bodies 40. According to this configuration, by arranging the second light guide body 40 and the plate-shaped light guide body 50 in a well-balanced manner, the appearance can be improved.

[0052] In the vehicle lamp 100 according to the present embodiment, the first light guide body 20 may be arranged along the horizontal plane in the vehicle-mounted state, and the second light guide body 40 may be arranged to intersect the horizontal plane in the vehicle-mounted state. According to this configuration, appropriate light distribution can be controlled while securing light-emitting portions in the horizontal direction and the vertical direction by the inner lens 30.

[0053] In the vehicle lamp 100 according to the present embodiment, for at least one of the vertical direction and the horizontal direction in the vehicle-mounted state, the emission direction of the light L1 of the plurality of second light guide bodies 40 can be individually set. According to this configuration, light can be emitted in an appropriate range in the vertical direction and the horizontal direction.

[0054] The technical scope of the present invention is not limited to the above embodiment, and appropriate changes can be made without departing from the gist of the present invention. For example, in the above embodiment, the configuration in which the inner lens 30 has the plate-shaped light guide body 50 has been described as an example, but it is not limited to this. FIG. 6 is a diagram showing the configuration of a vehicle lamp 200 according to a modified example. Like the vehicle lamp 200 shown in FIG. 6, the inner lens 130 may have a configuration that does not have the plate-shaped light guide body 50. Note that the inner lens 130 may have a configuration in which, for example, a plurality of second light guide bodies 40 are coupled to each other.

[0055] Further, in the above embodiment, the case where the second light guide body 40 is arranged orthogonally to the first light guide body 20 has been described as an example, but it is not limited to this. FIG. 7 is a diagram showing the configuration of a vehicle lamp 300 according to a modified example. Like the vehicle lamp 300 shown in FIG. 7, the second light guide body 240 and the plate-shaped light guide body 250 may be arranged inclined with respect to the first light guide body 20.

[0056] Further, FIG. 8 is a diagram showing the configuration of a vehicle lamp 400 according to a modified example. As in the vehicle lamp 400 shown in FIG. 8, the second light guide 340 and the plate-shaped light guide 350 may have a curved configuration. In the example shown in FIG. 8, all of the plurality of second light guides 340 and plate-shaped light guides 350 are shown to have a curved configuration, but the present invention is not limited thereto, and a configuration in which some of the second light guides 340 and plate-shaped light guides 350 are curved may also be acceptable. Further, in this case, the second light guide 340 and the plate-shaped light guide 350 may have a bent shape.

[0057] Further, in the above-described embodiment, the case where the vehicle lamp 100 is provided on the vehicle body 2 (fixed portion) side at the rear of the vehicle 1 has been described as an example, but the present invention is not limited thereto. Even when the vehicle lamp 100 is provided at other parts of the vehicle 1, the same description as above is possible.

[0058] Further, in the above-described embodiment, the configuration in which a plurality of second light guides 40 and plate-shaped light guides 50 are provided in the inner lens 30 has been described as an example, but the present invention is not limited thereto. The second light guide 40 and the plate-shaped light guide 50 may be one.

[0059] Further, in the vehicle lamp according to the above-described embodiment, the plurality of second light guides 40 may be arranged so that there is no gap between adjacent second light guides 40 when viewed from the front side. According to this configuration, since the plurality of second light guides 40 can irradiate light without a gap on the front side, the appearance can be improved.

[0060] Further, in the above-described embodiment, the case where the inner lenses 14 and 24 are plate-shaped has been described as an example, but the present invention is not limited thereto, and other shapes may also be acceptable. Further, in the above-described embodiment, at least one of the inner lens 14 and the inner lens 24 may have a configuration in which the end portion on the vehicle inner side is folded back toward the front side.

[0061] FIG. 9 is an exploded perspective view showing another example of a vehicle lamp. As shown in FIG. 9, the vehicle lamp 110 includes a light source 111, a first light guide 112, an inner housing 113, an inner lens 114, an outer lens 115, a lamp housing 116, and a reflecting member 119. The configurations of the light source 111, the first light guide 112, the inner housing 113, the outer lens 115, and the lamp housing 116 are the same as those of the above-described respective configurations.

[0062] In the vehicle lamp 110, the inner lens 114 has a second light guide 114r, a plate-shaped light guide 114s, and a folded-back portion 114t. The folded-back portion 114t is disposed at the end of the inner lens 114 on the vehicle interior side. The folded-back portion 114t is formed so as to protrude toward the front side at the end of the inner lens 114 on the vehicle interior side. Further, the vehicle lamp 110 has a reflecting member 119. The reflecting member 119 is disposed between the first light guide 112 and the leg portion 118 of the outer lens 115. The reflecting member 19 is held by, for example, the inner housing 113. The reflecting member 119 is, for example, plate-shaped and is provided along the leg portion 118. The reflecting member 119 reflects the light emitted from the end face of the light guide 112 toward the front portion 117 side.

[0063] FIG. 10 is a perspective view showing the configuration of a vehicle lamp according to another example. FIG. 10 shows a state as viewed from the front side. The upper stage of FIG. 10 shows the positional relationship between the lamp housing 116, the first light guide 112, and the inner lens 114, and other configurations are omitted. The middle stage of FIG. 10 shows a state in which the inner housing 113 and the reflecting member 119 are arranged with respect to the state shown in the upper stage of FIG. 10. The lower stage of FIG. 10 shows a state in which the outer lens 115 is attached with respect to the state shown in the middle stage of FIG. 10.

[0064] As shown in FIG. 10, the folded portion 114t of the inner lens 114 is arranged to face the reflecting member 119 on the outer side of the vehicle of the reflecting member 119 in a state of being attached to the inner housing 113. Further, the leg portion 118 of the outer lens 115 is arranged on the inner side of the vehicle of the reflecting member 119. For this reason, when the leg portion 118 is viewed from the front side, since the folded portion 114t is covered by the reflecting member 119, it is possible to prevent light from leaking from the folded portion 114t to the leg portion 118 side.

[0065] FIG. 11 is a view showing an example of the inner lens 114. FIGS. 12 and 13 are views showing an enlarged part (folded portion 114t) of FIG. 11. FIG. 12 is a perspective view, and FIG. 13 is a plan view. As shown in FIGS. 11 to 13, in each of the second light guide 114r and the plate-like light guide 114s of the inner lens 114, a strip-shaped prism portion 114x along the vertical direction is formed on the front side. The prism portion 114p is provided over the entire extending direction of the inner lens 114.

[0066] Further, in the folded portion 114t, a strip-shaped prism portion 114y along the vertical direction is formed on the first surface 114m on the inner side of the vehicle, and a strip-shaped prism portion 114z along the vertical direction is formed on the second surface 114n on the outer side of the vehicle. The prism portion 114y diffuses the light traveling through the folded portion 114t. The prism portion 114z emits the light diffused by the prism portion 114y toward the outer side of the vehicle. The pitch of the prism portion 114y is larger than that of the prism portion 114z. In other words, the prism portion 114z is formed finer than the prism portion 114y.

[0067] FIG. 14 is a view showing a state of the outer lens 115 viewed from the inside. As shown in FIG. 14, a prism portion 118a is formed on the inner surface side of the leg portion 118 of the outer lens 115. The prism portion 118a is in a strip shape along the vertical direction. The prism portion 118a internally reflects the light incident on the outer lens 115 from outside the gap to the outer side.

[0068] In the configuration shown in FIGS. 9 to 14, the reflecting member 119 reflects the light emitted from the inner surface of the folding portion 114t of the inner lens 114 toward the outside of the vehicle. The light reflected by the reflecting member 119 is incident on the folding portion 114t and is emitted, for example, from the prism portion 114z. With such a configuration in which the inner lens 114 is provided with the folding portion 114t, light can be efficiently emitted to the outside of the vehicle.

Description of Reference Numerals

[0069] D... Gap, L1, L2... Light, 1... Vehicle, 2... Vehicle body, 3... Running device, 4... Tire, 7... Back door, 10... Light source, 11... Light emitting surface, 20... First light guide, 21, 41... End face, 22, 42... Side face, 22a, 42a, 52a... Prism portion, 22b... Emitting portion, 30, 130... Inner lens, 40, 240, 340... Second light guide, 43, 53... Emitting surface, 50, 250, 350... Plate-like light guide, 51... Incident surface, 52... Reflecting surface, 60... Housing, 70... Outer lens, 80... Lamp chamber, 100, 200, 300, 400... Vehicle lamp

Claims

1. A light source, a first light guide which is rod-shaped, guides light from the light source in the longitudinal direction, and emits the light in a predetermined direction which is lateral with respect to the longitudinal direction, and an inner lens which guides the light emitted from the first light guide and emits the light to the front side in a vehicle-mounted state are provided, the inner lens has a plurality of rod-shaped second light guides each having an end face and a side face, each of the second light guides is arranged to face the first light guide with a gap in the predetermined direction between the end face and the first light guide so that the light emitted from the first light guide enters, and the side face is formed so as to emit the light incident from the end face into the interior in one direction set for each of the second light guides, a vehicle lamp.

2. The plurality of second light guides are arranged in the longitudinal direction of the first light guide The vehicle lamp according to Claim 1.

3. The plurality of second light guides are arranged so as to extend along the predetermined direction The vehicle lamp according to Claim 2.

4. The first light guide extends so as to be curved toward the back side from the inside of the vehicle to the outside of the vehicle in a vehicle-mounted state The vehicle lamp according to Claim 2 or Claim 3.

5. The plurality of second light guides are arranged so that there is no gap between adjacent second light guides when viewed from the front side The vehicle lamp according to Claim 4.

6. The inner lens has a plate-shaped light guide which is connected to the second light guide, allows the light from the first light guide to enter the interior, and guides and emits the light incident into the interior The vehicle lamp according to any one of Claims 1 to 5.

7. The plurality of second light guides are arranged at intervals in the longitudinal direction of the first light guide, the plate-shaped light guide connects between adjacent second light guides The vehicle lamp according to Claim 6.

8. The first light guide is arranged along a horizontal plane in a vehicle-mounted state, the plurality of second light guides are arranged so as to intersect a horizontal plane in a vehicle-mounted state The vehicle lamp according to any one of Claims 1 to 7.

9. The plurality of second light guides are provided so that the light emission direction gradually changes from the diagonally rear side of the vehicle to the outside of the vehicle from the inside of the vehicle to the outside The vehicle lamp according to any one of Claims 1 to 8.

Images