Vehicle lamp

The vehicle lamp design addresses the lack of cohesion in existing designs by using optical and reflective elements to create a unified lighting effect between fixed and movable units, improving the sense of connection and brightness.

JP2025161980APending Publication Date: 2025-10-24ICHIKOH IND LTD
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Patent Information

Application Number
JP2025141668
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2025-08-27
Publication Date
2025-10-24

AI Technical Summary

Technical Problem

Existing vehicle lamps with fixed and movable units have a gap between them, leading to a lack of connection and cohesion in lighting effects.

Method used

A vehicle lamp design that incorporates a fixed side unit and a movable side unit with specific optical and reflective elements, including light guides, inner and outer lenses, and reflecting members, to enhance the connection between the two units by guiding and reflecting light in a way that creates a unified lighting effect.

Benefits of technology

The design improves the sense of connection and unity between the fixed and movable lamp units, enhancing the overall lighting appearance and brightness by creating interconnected lighting areas.

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Abstract

To provide a vehicle lamp capable of improving the sense of connection between a fixed-side lamp unit and a movable-side lamp unit.SOLUTION: A vehicle lamp comprises a first unit and a second unit. The first unit has a reflective member arranged between a first optical member and a first leg part. The reflective member has a first reflective surface that reflects toward a first front part first light emitted from the first optical member toward a gap, and a second reflective surface that reflects second light emitted from a second optical member of the second unit and passing through a second outer lens and a first outer lens toward the gap, and emits the second light from the gap toward the front part.SELECTED DRAWING: Figure 2
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Description

[Technical Field]

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

[0002] Conventionally, a vehicle lamp that is arranged at the rear of a vehicle, straddling the vehicle body side and the back door side, is known (see, for example, Patent Document 1). Such a vehicle lamp is configured to include a lamp unit on the vehicle body side and a lamp unit on the back door side. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 6159166 Summary of the Invention [Problem to be solved by the invention]

[0004] In the vehicle lamp described in Patent Document 1, the lamp unit on the vehicle body side and the lamp unit on the back door side are arranged with a gap between them. In a vehicle lamp arranged across the fixed side and movable side of a vehicle like this, there is a demand for a configuration that enhances the sense of connection between the lamp unit on the fixed side and the lamp unit on the movable side.

[0005] The present invention has been made in consideration of the above, and aims to provide a vehicle lamp that can improve the sense of connection between the fixed side lamp unit and the movable side lamp unit. [Means for solving the problem]

[0006] The vehicle lamp according to the present invention comprises a fixed side unit disposed on the fixed part of a vehicle having a fixed part and a movable part, the fixed side unit emitting a first light, and a movable side unit disposed on the movable part with a gap between the fixed side unit and the fixed side unit, the fixed side unit emitting a second light, the fixed side unit having a first light source, a first optical member that guides and emits the first light of the first light source, a first front side portion that covers a front side of the first optical member when mounted on the vehicle, and a first leg portion that forms a side surface of the first optical member on the gap side, and a first outer lens arranged so that the side surface of the first leg on the gap side can be seen from the gap when viewed from the front, and the movable side unit having a second light source, The fixed side unit has a second optical element that guides and emits the second light from the second light source, a second front portion that covers the front side of the second optical element when mounted on the vehicle, and a second leg portion that forms the side of the second optical element facing the gap, and the fixed side unit has a reflecting element arranged between the first optical element and the first leg portion, the reflecting element having a first reflecting surface that reflects the first light emitted from the first optical element toward the gap toward the first front portion, and a second reflecting surface that reflects the second light emitted from the second optical element and passing through the second outer lens and the first outer lens toward the gap and emits it from the gap toward the front side.

[0007] In the above-described vehicle lamp, the first leg portion has, on its inner surface, a prism portion that internally reflects the second light incident on the first outer lens toward the gap and causes the second light to exit from the gap toward the front side.

[0008] In the above vehicle lamp, at least one of the first front portion and the second front portion has a light diffusion portion on an inner surface.

[0009] In the above vehicle lamp, the first outer lens and the second outer lens have a shape that is curved toward the rear side from the movable portion to the fixed portion.

[0010] In the above-mentioned vehicle lamp, the first optical member and the second optical member have a rod-shaped light guide and an inner lens having a rod-shaped portion and a plate-shaped portion aligned integrally in the extension direction of the light guide and arranged at a predetermined distance from the side of the light guide. [Effects of the Invention]

[0011] According to the present invention, it is possible to provide a vehicle lamp that can improve the sense of connection between the fixed-side lamp unit and the movable-side lamp unit. [Brief explanation of the drawings]

[0012] [Figure 1] FIG. 1 is a diagram showing an example of the rear part of a vehicle according to this embodiment. [Figure 2] FIG. 2 is a diagram schematically illustrating an example of a vehicle lamp according to this embodiment. [Figure 3] FIG. 3 is a diagram schematically illustrating an example of a vehicle lamp according to this embodiment. [Figure 4] FIG. 4 is a diagram schematically illustrating an example of an optical member. [Figure 5] FIG. 5 is a diagram schematically illustrating an example of a path of light when a vehicle lamp is turned on. [Figure 6] FIG. 6 is a diagram showing an example of a lighting state of a vehicle lamp. [Figure 7] FIG. 7 is a diagram showing another example of a vehicle lamp. [Figure 8] FIG. 8 is a perspective view showing the configuration of a fixed side unit according to another example. [Figure 9] FIG. 9 is a diagram showing an example of an inner lens. [Figure 10] FIG. 10 is an enlarged view of a part of FIG. [Figure 11] FIG. 11 is an enlarged view of a part of FIG. [Figure 12] FIG. 12 is a diagram showing the outer lens as viewed from the inside. DETAILED DESCRIPTION OF THE INVENTION

[0013] Hereinafter, an embodiment of a vehicle lamp according to the present invention will be described with reference to the drawings. However, the present invention is not limited to this embodiment. Furthermore, the components in the following embodiments include those that are easily replaceable by those skilled in the art, or those that are substantially the same.

[0014] In this embodiment, the front and rear directions are directions in a state where the device is mounted on a vehicle (mounted on a vehicle). For example, when the device is mounted on the front of the vehicle, the front is the front direction (front side) and the rear is the rear direction (rear side). When the device is mounted on the rear of the vehicle, the rear is the front direction (front side) and the front is the rear direction (rear side). When the device is mounted on the 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).

[0015] FIG. 1 is a diagram showing an example of the rear of a vehicle 1 according to this embodiment. As shown in FIG. 1, the vehicle 1 includes a vehicle body 2, a running device 3, and a vehicle lamp 100. The vehicle body 2 has a driver's cab where a driver sits. The vehicle body 2 is supported by the running device 3. The running device 3 has wheels on which tires 4 are mounted, a steering device for changing the direction of travel of the vehicle 1, and a brake device for slowing down or stopping the running device 3. The vehicle 1 includes a boarding / alighting door provided on the side of the vehicle body 2, and a tailgate 7 provided on the rear of the vehicle body 2. The boarding / alighting door and the tailgate 7 are each movably supported on the vehicle body 2 via a hinge mechanism.

[0016] In this embodiment, the vehicular lamp 100 is provided on each of the left and right sides of the rear of the vehicle body 2. In this embodiment, the vehicular lamp 100 is provided at the rear of the vehicle body 2. Therefore, the rear side in the front-to-rear direction will be referred to as the front side of the vehicular lamp 100, and the front side in the front-to-rear direction will be referred to as the back side of the vehicular lamp 100.

[0017] The vehicle lighting device 100 includes functional lamps, such as tail lamps that are provided at the rear of the vehicle body 2 and light up in conjunction with the lighting of the head lamps, stop lamps that are provided at the rear of the vehicle body 2 and light up in conjunction with the operation of the brake device, and rear turn signal lamps that are provided at the rear of the vehicle body 2 and light up to indicate the direction in which the vehicle 1 is traveling to those around it.

[0018] The vehicle lamps 100 are respectively arranged straddling the vehicle body 2 side and the back door 7 side. In this embodiment, the vehicle body 2 is a fixed part, and the back door 7 is a movable part. The structure of the vehicle lamp 100 provided on the left rear side of the vehicle body 2 and the structure of the vehicle lamp 100 provided on the right rear side of the vehicle body 2 are symmetrical in the left-right direction and are substantially identical in structure. The following mainly describes the vehicle lamp 100 provided on the right rear side of the vehicle body 2, and the description of the vehicle lamp 100 provided on the left rear side of the vehicle body 2 will be simplified or omitted.

[0019] 2 and 3 are diagrams schematically showing an example of a vehicle lamp 100 according to this embodiment. FIG. 2 shows a configuration along the AA cross section in FIG. 1. FIG. 3 shows an enlarged view of a portion of FIG. 2. The vehicle lamp 100 shown in FIGS. 2 and 3 comprises a fixed unit 10, which is a fixed part, arranged on the vehicle body 2 side, and a movable unit 20, which is a movable part, arranged on the back door 7 side. The fixed unit 10 and the movable unit 20 are separated by a gap 30. The vehicle lamp 100 has a shape that is curved or bent toward the rear side from the inside of the vehicle to the outside of the vehicle, a so-called slant shape.

[0020] The fixed side unit 10 includes a light source (first light source) 11, a light guide 12, an inner housing 13, an inner lens 14, an outer lens (first outer lens) 15, a lamp housing 16, and a reflecting member 19.

[0021] The light source 11 is a semiconductor light source such as an LED, etc. The light source 11 supplies light to the fixed unit 10.

[0022] The light guide 12 guides light from the light source 11 and emits it upward. FIG. 4 is a diagram schematically illustrating an example of the optical member (first optical member) 8. As illustrated in FIGS. 2 to 4, the light guide 12 is rod-shaped and is disposed in a curved state toward the rear side from the inside to the outside of the vehicle. The light guide 12 has an incident surface 12a at an end on the back door 7 side (movable side, left side). The incident surface 12a is, for example, planar. The light guide 12 has an end surface 12b on the opposite side from the incident surface 12a, i.e., the end on the gap 30 side. As illustrated in FIG. 4, the light guide 12 internally reflects light L1 incident from the incident surface 12a by a prism portion 12c disposed on the lower side surface, and emits the light from an emission portion 12d on the upper side surface, thereby guiding the light to the inner lens 14.

[0023] The inner lens 14 has a rod-shaped portion 14r and a plate-shaped portion 14s. The rod-shaped portions 14r are arranged above the light guide 12, and multiple rod-shaped portions 14r are arranged side by side along the extension direction of the light guide 12. The rod-shaped portions 14r extend linearly, for example, in the vertical direction. The rod-shaped portions 14r have an incident surface 14a and an exit surface 14b. The incident surface 14a faces the upper side surface of the light guide 12. The rod-shaped portions 14r are arranged such that the incident surface 14a faces the light guide 12 with a gap between them. The incident surface 14a allows light emitted from the upper side surface of the light guide 12 to enter the interior.

[0024] The exit surface 14b emits light that has entered the interior. A prism portion 14c is formed on the rear side of the exit surface 14b when the lamp is mounted on a vehicle. The prism portion 14c reflects light that enters from the entrance surface 14a and is internally reflected by the exit surface 14b toward the front side when the lamp is mounted on a vehicle. The light reflected by the prism portion 14c is emitted in the front direction from the exit surface 14b of the rod-shaped portion 14r. In this embodiment, the light reflected by the prism portion 14c is emitted, for example, toward the rear of the vehicle from the exit surface 14b.

[0025] The plate-shaped portion 14s is integrally formed with the rod-shaped portion 14r. The plate-shaped portion 14s connects adjacent rod-shaped portions 14r. The plate-shaped portion 14s is, for example, flat and is arranged in the up-down direction to correspond to the rod-shaped portion 14r. The plate-shaped portion 14s has an incident surface 14d, a reflecting surface 14e, and an exit surface 14f. The incident surface 14d faces the upper side surface of the light guide 12. The incident surface 14d is arranged to face the light guide 12 with a gap between it and the light guide 12. The incident surface 14d causes light emitted from the upper side surface of the light guide 12 to enter the rod-shaped portion 14r. A prism portion 52a is formed on the back side of the reflecting surface 14e when the light source is mounted on a vehicle. The prism portion 52a reflects light that enters from the incident surface 14d and is internally reflected by each surface of the plate-shaped portion 14s toward the exit surface 14f. The light reflected by the prism portion 52a is emitted from the exit surface 14f. In the present embodiment, as will be described later, the light reflected by the prism portion 52a is emitted from the exit surface 14f in a normal direction of the exit surface 14f, that is, diagonally rearward or to the side of the vehicle.

[0026] The inner lens 14 is disposed with a predetermined gap in the vertical direction between it and the light guide 12. In this embodiment, the light guide 12 and the inner lens 14 constitute the optical member 8. The inner lens 14 is disposed above the light guide 12.

[0027] The inner housing 13 holds the optical member 8. The inner housing 13 is disposed on the rear side of the optical member 8. The inner housing 13 may have a reflective member on the front surface. In this case, light emitted from the light guide 12 or the inner lens 14 on the rear side can be reflected to the front side.

[0028] The outer lens 15 emits the light emitted from the inner lens 14 to the outside of the vehicle lamp 100. The outer lens 15 is plate-shaped, and the portion facing the gap 30 in a cross-sectional view is bent in an L shape. The outer lens 15 has a shape that curves toward the rear side from the inside of the vehicle to the outside of the vehicle. The outer lens 15, together with the lamp housing 16, houses each part of the vehicle lamp 100. The outer lens 15 is formed, for example, using a resin material that is transparent or a color similar to the lighting color.

[0029] The outer lens 15 has a front portion (first front portion) 17 and leg portions (first leg portions) 18. The front portion 17 is disposed on the front side of the inner lens 14. The front portion 17 has a light diffusion portion 17a on its inner surface. The leg portions 18 are disposed on the lateral side (left side) of the light guide 12 on the back door 7 side. The leg portions 18 are portions that extend obliquely from the end of the front portion 17 on the gap side toward the back side. The leg portions 18 are disposed so that the outer surface 18b on the gap 30 side is visible from the gap 30 when viewed from the front.

[0030] Leg portion 18 has prism portion 18a. Prism portion 18a is formed on the inner surface of leg portion 18. Prism portion 18a internally reflects light that enters outer lens 15 from gap 30 toward gap 30. Prism portion 18a is composed of a plurality of minute reflective surfaces that internally reflect light. The position, orientation, etc. of the reflective surfaces of prism portion 18a are set so that the internally reflected light is emitted to the front side through gap 30.

[0031] The reflecting member 19 is disposed between the light guide 12 and the leg portion 18. The reflecting member 19 is held by, for example, the inner housing 13. The reflecting member 19 is, for example, plate-shaped and provided along the leg portion 18. The reflecting member 19 has a first reflecting surface 19a and a second reflecting surface 19b. The first reflecting surface 19a is disposed facing the inside of the fixed side unit 10. The first reflecting surface 19a reflects light emitted from the light guide 12 toward the gap 30 toward the front surface 17. The second reflecting surface 19b is disposed facing the gap 30. The second reflecting surface 19b reflects light emitted from the movable side unit 20 and transmitted through the outer lens 15 toward the gap 30. The position, attitude, etc. of the second reflecting surface 19b are set so that the reflected light is emitted toward the front surface through the gap 30.

[0032] The movable unit 20 includes a light source (second light source) 21, a light guide 22, an inner housing 23, an inner lens 24, an outer lens (second outer lens) 25, and a lamp housing 26.

[0033] The light source 21 is a semiconductor light source such as an LED. The light source 21 supplies light to the movable unit 20. The light guide 22 emits light from the light source 21 toward the front side (rear). The inner lens 24 has a rod-shaped portion 24r and a plate-shaped portion 24s. The inner lens 24 is disposed above the light guide 22, with a predetermined gap between it and the light guide 22. The configurations of the rod-shaped portion 24r and the plate-shaped portion 24s are the same as the configurations of the rod-shaped portion 14r and the plate-shaped portion 14s of the inner lens 14 described above. The inner lens 24 emits light guided by the light guide 22 toward the front side. The light guide 22 and the inner lens 24 constitute an optical member (second optical member) 9. The inner housing 23 holds the optical member 9.

[0034] The outer lens 25 emits the light emitted from the inner lens 24 to the outside of the vehicle lamp 100. The outer lens 25 is plate-shaped, and the portion facing the gap 30 in a cross-sectional view is bent in an L shape. The outer lens 25, together with the lamp housing 26, houses each part of the vehicle lamp 100. The outer lens 25 is formed, for example, using a resin material that is transparent or has a color similar to the lighting color.

[0035] The outer lens 25 has a front portion (second front portion) 27 and leg portions (second leg portions) 28. The front portion 27 is disposed on the front side of the inner lens 24. The front portion 27 has a light diffusion portion 27a on its inner surface. The leg portions 28 are disposed on the lateral side (left side) of the light guide 22 on the back door 7 side. The leg portions 28 are portions that extend from the end of the front portion 27 on the gap 30 side toward the rear side.

[0036] Next, we will explain an example of the operation of the vehicle lamp 100 configured as described above. When the driver performs a predetermined operation, such as operating a turn signal or hazard switch on the vehicle, the vehicle lamp 100 emits light from the light source 11 of the fixed unit 10 and the light source 21 of the movable unit 20 in response to the operation.

[0037] Fig. 5 is a diagram schematically illustrating an example of the path of light when the vehicle lamp 100 is turned on. As shown in Fig. 5, light emitted from the light source 11 of the fixed unit 10 enters the light guide 12 and is guided by the light guide 12. A portion of the guided light L1 is guided from the light guide 12 to the inner lens 14 and is emitted to the front side from the emission surfaces 14b, 14f of the inner lens 14. The light L1 is emitted to the front side from the front portion 17 of the outer lens 15.

[0038] Furthermore, a portion of the guided light L2 is emitted from the end face 12b of the light guide 12 toward the leg portion 18. This light L2 is reflected toward the front portion 17 of the outer lens 15 by the first reflecting surface 19a of the reflecting member 19 disposed between the light guide 12 and the leg portion 18. The reflected light L2 is emitted from the front portion 17 toward the front.

[0039] The light L1 and the light L2 cause the lighting area AR1 (see FIG. 6) on the front surface 17 of the outer lens 15 to be in a lighting state.

[0040] Furthermore, light emitted from the light source 21 of the movable-side unit 20 enters the light guide 22 and is guided by the light guide 22. A portion of the guided light L3 is guided from the light guide 22 to the inner lens 24 and is emitted to the front side from the light emission surfaces 24b, 24f of the inner lens 24. The light L3 is emitted to the front from the front portion 27 of the outer lens 25. The light L3 causes a lighting area AR2 (see FIG. 6) on the front portion 27 of the outer lens 25 to be lit.

[0041] Furthermore, some of the guided light L4 and L5 is emitted from the end face 22b of the light guide 22 toward the leg 28. The light L4 and L5 passes through the leg 28 and is emitted into the gap 30, and is incident on the leg 18 of the outer lens 15 of the fixed side unit 10.

[0042] Of these, light L4 passes through the leg portions 18 and reaches the interior of the fixed side unit 10. In this embodiment, a reflecting member 19 is arranged to cover the leg portions 28. Therefore, light L4 that reaches the interior of the fixed side unit 10 is reflected by the second reflecting surface 19b of the reflecting member 19 toward the leg portions 18. The reflected light L4 is emitted from the outer surfaces 18b of the leg portions 18 to the front side through the gaps 30. Furthermore, light L5 that enters the leg portions 18 reaches the prism portions 18a formed on the inner surfaces of the leg portions 18. Light L5 that reaches the prism portions 18a is internally reflected by the prism portions 18a and is emitted from the outer surfaces 18b of the leg portions 18 to the front side through the gaps 30.

[0043] The light L4 and the light L5 cause the lighting area AR3 (see FIG. 6) of the leg portion 18 of the outer lens 15 to be in a lit state.

[0044] Fig. 6 is a diagram showing an example of the lighting state of the vehicle lamp 100. As shown in Fig. 6, the vehicle lamp 100 is provided with a reflecting member 19 and a prism portion 18a, so that a lighting area AR3 is formed in the leg portion 18. In this case, the vehicle lamp 100 has a lighting area AR1 formed in the front portion 17 of the outer lens 15 of the fixed unit 10, a lighting area AR2 formed in the front portion 27 of the outer lens 25 of the movable unit 20, and a lighting area AR3 formed in the leg portion 18 of the outer lens 15. This gives the viewer the impression that the lighting area AR1 and the lighting area AR2 are connected by the lighting area AR3.

[0045] As described above, the vehicle lamp 100 according to this embodiment comprises a fixed-side unit 10 that is arranged in the fixed part of a vehicle having a fixed part (vehicle body 2) and a movable part (back door 7) and irradiates light, and a movable-side unit 20 that is arranged in the movable part with a gap 30 between it and the fixed-side unit 10 and irradiates light, the fixed-side unit 10 having a light source 11, an optical member 8 that guides and emits light from the light source 11, a front part 17 that covers the front side of the optical member 8 when mounted on the vehicle, and leg parts 18 that form the side of the optical member 8 on the gap 30 side, an outer lens 15 that is arranged so that the outer surface 18b of the leg part 18 on the gap 30 side is visible from the gap 30 when viewed from the front, The movable side unit 20 has a light source 21, an optical member 9 that guides and emits light from the light source 21, and an outer lens 25 that has a front portion 27 that covers the front side of the optical member 9 when mounted on the vehicle, and leg portions 28 that form the side of the optical member 9 on the gap 30 side. The fixed side unit 10 has a reflecting member 19 that is arranged between the optical member 8 and the leg portions 18, and the reflecting member 19 has a first reflecting surface 19a that reflects light that is emitted from the optical member 8 toward the gap 30 toward the front portion 17, and a second reflecting surface 19b that reflects light that is emitted from the optical member 9 and passes through the outer lens 25 and the outer lens 15 toward the gap 30, causing it to be emitted from the gap 30 toward the front side.

[0046] With this configuration, light emitted from optical member 9 and passing through outer lens 25 and outer lens 15 is reflected toward gap 30 and emitted from gap 30 toward the front, so that the emitted light forms a lighting area AR3 on the front side of leg 18. That is, a lighting area AR1 is formed on front portion 17 of outer lens 15 of fixed unit 10, a lighting area AR2 is formed on front portion 27 of outer lens 25 of movable unit 20, and a lighting area AR3 is formed on outer surface 18b of leg 18. This gives the viewer the impression that lighting area AR1 and lighting area AR2 are connected by lighting area AR3. This improves the sense of connection between fixed unit 10 and movable unit 20.

[0047] In the vehicle lamp 100 according to this embodiment, the leg 18 has a prism portion 18a on its inner surface that internally reflects light that enters the outer lens 15 toward the gap 30 and emits it to the front side from the gap 30. With this configuration, the brightness of the lighting area AR3 can be improved by the light that is reflected by the prism portion 18a and emitted to the front side.

[0048] In the vehicle lamp 100 according to this embodiment, at least one of the front portion 17 and the front portion 27 has a light diffusion portion 17a, 27a on the inner surface. With this configuration, the light emitted from the front portion 17, 27 can be diffused, thereby improving the appearance when lit.

[0049] In the vehicle lamp 100 according to this embodiment, the outer lens 15 and the outer lens 25 have a shape that curves toward the rear side from the movable part to the fixed part. With this configuration, in a configuration in which the outer lens 15 and the outer lens 25 have a shape that curves toward the rear side from the movable part to the fixed part, it is possible to improve the sense of connection between the fixed side unit 10 and the movable side unit 20.

[0050] In the vehicle lamp 100 according to this embodiment, the optical member 8 and the optical member 9 include rod-shaped light guides 12 and 22, and inner lenses 14 and 24 that have rod-shaped portions 14r and 24r and plate-shaped portions 14s and 24s that are aligned integrally in the extension direction of the light guides 12 and 22 and are disposed at a predetermined distance from the side surfaces of the light guides 12 and 22. With this configuration, light can be smoothly guided from the light guides 12 and 22 to the inner lenses 14 and 24.

[0051] The technical scope of the present invention is not limited to the above-described embodiments, and appropriate modifications can be made without departing from the spirit of the present invention. For example, in the above-described embodiments, the optical members 8 and 9 are integrally formed with the light guides 12 and 22 and the inner lenses 14 and 24, but the present invention is not limited to this. For example, the inner lenses 14 and 24 may be separate from the light guides 12 and 22 and disposed on the front side of the light guides 12 and 22.

[0052] In the above embodiment, the inner lenses 14 and 24 are plate-shaped, but the present invention is not limited to this and other shapes may be used. In the above embodiment, at least one of the inner lenses 14 and 24 may have an end portion on the gap 30 side folded back toward the front side.

[0053] Fig. 7 is a diagram showing another example of a vehicle lamp. As shown in Fig. 7, a fixed side unit 110 includes a light source (first light source) 111, a light guide 112, an inner housing 113, an inner lens 114, an outer lens (first outer lens) 115, a lamp housing 116, and a reflecting member 119. The configurations of the light source 111, the light guide 112, the inner housing 113, the outer lens 115, the lamp housing 116, and the reflecting member 119 are the same as the configurations of the light source 11, the light guide 12, the inner housing 13, the outer lens 15, the lamp housing 16, and the reflecting member 19 according to the above-described embodiment.

[0054] In the fixed side unit 110, the inner lens 114 has a rod-shaped portion 114r, a plate-shaped portion 114s, and a folded portion 114t. The folded portion 114t is disposed at the end of the inner lens 114 on the vehicle inner side. The folded portion 114t is formed at the end of the inner lens 114 on the vehicle inner side so as to protrude toward the front side.

[0055] Fig. 8 is a perspective view showing the configuration of a fixed side unit according to another example. Fig. 8 shows the state as seen from the front side. The upper part of Fig. 8 shows the positional relationship between the lamp housing 116, the light guide 112, and the inner lens 114, and other configurations are omitted. The middle part of Fig. 8 shows the state in which the inner housing 113 and the reflective member 119 are arranged in comparison with the state shown in the upper part of Fig. 8. The lower part of Fig. 8 shows the state in which the outer lens 115 is attached in comparison with the state shown in the middle part of Fig. 8.

[0056] 8, folded portion 114t of inner lens 114 is disposed so as to face reflecting member 119 on the vehicle outer side of reflecting member 119 when attached to inner housing 113. Furthermore, leg portion 118 of outer lens 115 is disposed on the vehicle inner side of reflecting member 119. Therefore, when leg portion 118 is viewed from the front side, folded portion 114t is covered by reflecting member 119, which prevents light from leaking from folded portion 114t toward leg portion 118.

[0057] Fig. 9 is a diagram showing an example of the inner lens 114. Figs. 10 and 11 are enlarged views of a portion (folded portion 114t) of Fig. 9. Fig. 10 is a perspective view, and Fig. 11 is a plan view. As shown in Figs. 9 to 11, the inner lens 114 has strip-shaped prism portions 114x formed on the front side of each of the rod-shaped portion 114r and the plate-shaped portion 114s, extending in the up-down direction. The prism portions 114p are provided over the entire length of the inner lens 114.

[0058] Furthermore, the folded portion 114t has a strip-shaped prism portion 114y formed on a first surface 114m facing the inside of the vehicle and a strip-shaped prism portion 114z formed on a second surface 114n facing the outside of the vehicle and also extending in the vertical direction. 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 outside of the vehicle. The prism portion 114y has a larger pitch than the prism portion 114z. In other words, the prism portion 114z is formed finer than the prism portion 114y.

[0059] Fig. 12 is a diagram showing the state of outer lens 115 as viewed from the inside. As shown in Fig. 12, outer lens 115 has prism portions 118a formed on the inner surfaces of leg portions 118. Prism portions 118a are strip-shaped along the vertical direction. Prism portions 118a internally reflect light that enters outer lens 115 from outside the gap (gap 30) back toward the outside (gap 30).

[0060] 7 to 12, the reflecting member 119 reflects light emitted from the vehicle-inner surface of the folded 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 folded portion 114t and emitted, for example, from the prism portion 114z. In this way, the configuration in which the folded portion 114t is provided on the inner lens 114 makes it possible to efficiently emit light toward the outside of the vehicle. [Explanation of symbols]

[0061] AR1, AR2, AR3... lighting area, L1, L2, L3, L4, L5... light, 1... vehicle, 2... vehicle body, 3... running gear, 4... tire, 7... tailgate, 8, 9... optical member, 10, 110... fixed side unit, 11, 21, 111... light source, 12, 22, 112... light guide, 12a, 14a, 14d... incident surface, 12b, 22b... end surface, 12c, 14c, 18a, 52a, 114p, 114x, 114y, 114z, 118a... prism portion, 12d... emission portion, 13, 23, 113... inner housing, 14, 24, 114... inner Lens, 14b, 14f, 24b, 24f... exit surface, 14e... reflective surface, 14r, 24r, 114r... rod-shaped portion, 14s, 24s, 114s... plate-shaped portion, 15, 25, 115... outer lens, 16, 26, 116... lamp housing, 17, 27... front portion, 17a, 27a... light diffusion portion, 18, 28, 118... leg portion, 18b... outer surface, 19, 119... reflective member, 19a... first reflective surface, 19b... second reflective surface, 20... movable unit, 30... gap, 100... vehicular lamp, 114m... first surface, 114n... second surface, 114t... folded portion

Claims

1. a first unit that irradiates a first light; a second unit disposed with a gap between it and the first unit and configured to emit second light; Equipped with The first unit is A first light source; a first optical member that guides and emits the first light from the first light source; a first outer lens having a first front portion that covers a front side of the first optical member when mounted on a vehicle and a first leg portion that forms a side surface of the first optical member on the gap side, the first outer lens being arranged so that the side surface of the first leg on the gap side can be seen through the gap when viewed from the front; and The second unit is A second light source; a second optical member that guides and emits the second light from the second light source; a second outer lens having a second front portion that covers a front side of the second optical member when the lens is mounted on the vehicle, and a second leg portion that forms a side surface of the second optical member on the gap side; and the first unit has a reflecting member disposed between the first optical member and the first leg portion, The reflecting member has a first reflecting surface that reflects the first light emitted from the first optical member toward the gap toward the first front surface portion, and a second reflecting surface that reflects the second light emitted from the second optical member and transmitted through the second outer lens and the first outer lens toward the gap and causes the second light to exit from the gap toward the front surface. Vehicle lighting fixtures.

2. The second unit is disposed on the inner side of the vehicle relative to the first unit.

2. A vehicle lamp according to claim 1.

Citation Information

Patent Citations

  • Lighting device

    JP2016134342A

  • Vehicle lamp fitting

    JP2018185987A

  • Absorption refrigerator

    JP1986059166A