Vehicle lamp
The vehicle lamp design addresses the challenge of forming a visible aerial image by using a light source unit, mirror member, and reflection member to distribute luminous intensity effectively on the front side, enhancing visibility when viewed from the front in a vehicle-mounted state.
Patent Information
- Application Number
- JP2021126127
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2021-07-30
- Publication Date
- 2025-06-18
- Estimated Expiration
- 2041-07-30
AI Technical Summary
Existing vehicle lamps struggle to form an aerial image with sufficient visibility when viewed from the front side in a vehicle-mounted state, as the maximum luminous intensity is distributed obliquely upward.
A vehicle lamp design featuring a light source unit that emits light intersecting the reference direction, a mirror member that reflects and transmits light, and a reflection member that retroreflects light to form an aerial image on the front side, with the mirror and reflection members divided into segments for differential optical axis arrangement.
The design enables the formation of an aerial image with sufficient visibility when viewed from the front side, by distributing the maximum luminous intensity on the front side, thus addressing the visibility issues of existing vehicle lamps.
Smart Images

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Abstract
Description
Technical Field
[0001] The present invention relates to a vehicle lamp.
Background Art
[0002] A vehicle lamp mounted on a vehicle and capable of forming an aerial image is known (see, for example, Patent Document 1). The vehicle lamp described in Patent Document 1 includes a light source that emits light obliquely upward in a vehicle-mounted state, and a mirror that reflects the light from the light source obliquely upward to form an aerial image above the light source.
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, the direction in which the aerial image is visually recognized is obliquely upward, and the maximum luminous intensity is distributed obliquely upward. Therefore, when used as a vehicle lamp that is visually recognized from the front side in a vehicle-mounted state, such as a signal lamp mounted on the front or rear of a vehicle, it is difficult to form an aerial image having sufficient visibility.
[0005] The present invention has been made in view of the above, and an object thereof is to provide a vehicle lamp capable of forming an aerial image having sufficient visibility when viewed from the front side in a vehicle-mounted state.
Means for Solving the Problems
[0006] The vehicle lamp according to the present invention includes a light source unit that emits light in a direction intersecting a reference direction, which is the direction viewed from the front side in the vehicle-mounted state, a mirror member that can reflect a part of the light emitted from the light source unit to the back side of the reference direction and can transmit a part of the light traveling from the back side to the front side of the reference direction to the front side of the reference direction, and a reflection member that is disposed on the back side of the reference direction with respect to the mirror member and retroreflects the light reflected by the mirror member to the front side of the reference direction, thereby forming an aerial image at the imaging position on the front side of the mirror member with respect to the reference direction by the light transmitted through the mirror member.
[0007] In the above vehicle lamp, the mirror member and the reflection member are divided into a plurality of segments along the left-right direction in the vehicle-mounted state, and the optical axes of the light that is retroreflected by the reflection member and transmitted through the mirror member are arranged to be different in the left-right direction for each segment.
[0008] In the above vehicle lamp, the mirror member is disposed in a state of covering the light source unit when viewed from the reference direction.
[0009] The above vehicle lamp further includes a lamp housing that houses the light source unit, the mirror member, and the reflection member. The mirror member is disposed such that a part of the lamp housing is reflected when viewed from the front side of the reference direction, and the lamp housing is formed such that at least the part reflected on the mirror member when viewed from the front side of the reference direction has the same color as the exterior color of the vehicle.
[0010] The above vehicle lamp further includes an outer lens disposed on the front side of the reference direction with respect to the light source unit, the mirror member, and the reflection member. The mirror member is a half mirror that transmits a part of the light and reflects a part of the light, and the imaging position is disposed on the front side of the reference direction with respect to the outer lens.
[0011] In the above vehicle lamp, the reflecting member is capable of transmitting light traveling from the back side to the front side in the reference direction to the front side in the reference direction, and further includes a second light source unit that is disposed on the back side in the reference direction with respect to the reflecting member and emits light toward the front side in the reference direction.
Advantages of the Invention
[0012] According to the present invention, it is possible to provide a vehicle lamp that forms an aerial image having sufficient visibility when viewed from the front side in a vehicle-mounted state.
Brief Description of the Drawings
[0013]
Figure 1
Figure 2
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Figure 5
Figure 6
Figure 7
Figure 8
Figure 9
Embodiments for Carrying Out the Invention
[0014] Hereinafter, an embodiment of a 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 constituent elements in the following embodiment include those that can be replaced and are easy for those skilled in the art, or those that are substantially the same.
[0015] 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, when 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, when 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, when 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).
[0016] FIG. 1 is a side view showing an example of a vehicle 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 the driver rides. The vehicle body 2 is supported by the traveling device 3. The traveling device 3 includes a wheel 5 to which a tire 4 is 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 traveling device 3 operates by the power generated by the engine. The vehicle 1 includes an entrance / exit door 6 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 6 and the back door 7 are each movably supported by the vehicle body 2 via a hinge mechanism.
[0017] In this embodiment, the vehicle lamp 100 can be disposed on the left and right sides of the rear (rear) portion of the vehicle body 2. In this case, the vehicle lamp 100 may be, for example, a turn signal lamp that lights up to indicate the traveling direction of the vehicle 1 around, a tail lamp that lights up in conjunction with the lighting of the head lamp, a stop lamp that lights up in conjunction with the operation of the braking device, or a combination thereof. Note that the vehicle lamp 100 is not limited to the configuration disposed at the rear portion of the vehicle body 2 as described above, and may be disposed at each part of the vehicle lamp such as the front portion of the vehicle or the side portion of the vehicle.
[0018] FIG. 2 is an exploded perspective view showing an example of the vehicle lamp 100 according to this embodiment. FIG. 3 is a cross-sectional view showing an example when the vehicle lamp 100 is cut by a plane perpendicular to the left-right direction. The vehicle lamp 100 shown in FIGS. 2 and 3 includes a light source unit 10, a mirror surface member 20, a reflection member 30, an inner housing 40, a lamp housing 50, and an outer lens 60. In this embodiment, the rear in the vehicle-mounted state of the vehicle lamp 100 is the front direction (front side), and the front is the rear direction (rear side). Also, in this embodiment, the reference direction when the vehicle lamp 100 is viewed from the front side is the front direction or the rear direction in the front-rear direction. The vehicle lamp 100 forms an aerial image P at an imaging position R in a lamp chamber 70 surrounded by, for example, the lamp housing 50 and the outer lens 60. The lamp housing 50 is formed to have the same color or a similar color as the exterior color of the vehicle 1.
[0019] The light source unit 10 emits light in a direction intersecting the reference direction (front, rear direction) D when viewed from the front side. The light source unit 10 is disposed laterally of the reference direction D with respect to the imaging position R of the aerial image P when viewed from the front side. In this embodiment, the light source unit 10 is disposed above the reference direction D with respect to the imaging position R of the aerial image P when viewed from the front side, and emits light downward. Also, as shown in FIG. 3, the light source unit 10 is disposed on the rear side of the imaging position R with respect to the reference direction D. Therefore, the light source unit 10 emits light toward the space on the rear side of the reference direction D with respect to the imaging position R.
[0020] Note that the arrangement of the light source unit 10 is not limited to the above. The light source unit 10 may be arranged below the reference direction D with respect to the imaging position R and emit light upward when viewed from the front side. Further, the light source unit 10 may be arranged on one of the left and right sides of the reference direction D with respect to the imaging position R and emit light toward the other side of the left and right when viewed from the front side.
[0021] The light source unit 10 includes a light source 11, a light source substrate 12, and inner lenses 13 and 14. As the light source 11, a semiconductor light source such as an LED, a laser light source, or the like is used. The light source 11 has a light emitting surface 11a that emits light. As the light source 11, a light source that emits red light or orange light, for example, is used. The light source substrate 12 mounts the light source 11. The light source substrate 12 has a control circuit that controls the light emission timing of the light source 11 and the like. The control circuit may be provided separately from the light source substrate 12. The inner lenses 13 and 14 emit the light from the light source 11 downward while diffusing it.
[0022] The mirror member 20 can reflect a part of the light emitted from the light source unit 10 to the back side in the reference direction D. Further, the mirror member 20 can transmit a part of the light traveling from the back side to the front side in the reference direction D to the front side in the reference direction D. The mirror member 20 is a so-called beam splitter. As the mirror member 20, for example, a half mirror, a polarizing lens, or the like can be used. In the present embodiment, the case where a half mirror is used as the mirror member 20 will be described as an example.
[0023] The mirror member 20 is arranged below the light source unit 10 and on the back side in the reference direction D with respect to the imaging position R. The mirror member 20 has a light transmission and reflection surface 21 that transmits a part of the light and reflects a part of the light. The light transmission and reflection surface 21 is inclined so that the upper part in the vertical direction is on the front side and the lower part is on the back side with respect to the plane perpendicular to the reference direction D. The light transmission and reflection surface 21 reflects the light from the light source unit 10 to the back side in the reference direction D. The light transmission and reflection surface 21 transmits a part of the light that is reflected by a reflection member 30 described later and travels to the front side in the reference direction D to the front side in the reference direction D.
[0024] The reflecting member 30 is disposed on the back side of the mirror member 20 in the reference direction D. The reflecting member 30 retroreflects the light reflected by the mirror member 20 to the front side in the reference direction D. A part of the light retroreflected by the reflecting member 30 passes through the mirror member 20. By this light, a virtual image P is formed at the imaging position R on the front side in the reference direction D with respect to the mirror member 20. That is, the reflecting member 30 retroreflects the light reflected by the mirror member 20 to the front side in the reference direction D, so that the virtual image P is formed at the imaging position R on the front side of the mirror member 20 in the reference direction D by the light passing through the mirror member 20. The reflecting member 30 has a retroreflective surface 31 that retroreflects the light reflected by the mirror member 20 to the front side in the reference direction D. The retroreflective surface 31 is formed in, for example, a spherical shape, a prism shape, or the like. In the present embodiment, a virtual image P is formed for each reflecting member 30. The shape of the virtual image P is the same as or corresponds to the shape of the retroreflective surface 31 of the reflecting member 30. For example, when the shape of the retroreflective surface 31 is triangular as in the present embodiment, the shape of the virtual image P corresponding to the reflecting member 30 having the retroreflective surface 31 is triangular.
[0025] FIG. 4 is a cross-sectional view showing an example when the vehicle lamp 100 is cut along a plane perpendicular to the vertical direction. As shown in FIG. 4, the mirror member 20 and the reflecting member 30 are divided into a plurality of segments in the left-right direction. In the present embodiment, the mirror member 20 and the reflecting member 30 are divided into, for example, five segments. Hereinafter, when distinguishing the mirror member 20 for each segment, it is denoted as mirror members 20a to 20e, and when distinguishing the reflecting member 30 for each segment, it is denoted as reflecting members 30a to 30e. The mirror member 20 and the reflecting member 30 are arranged such that the optical axes AX (AX1 to AX5) of the light that is retroreflected by the reflecting member 30 and transmitted through the mirror member 20 are different in the left-right direction for each segment. For example, with respect to the optical axis AX1 of the mirror member 20a and the reflecting member 30a, which are the segments arranged on the innermost side of the vehicle, the mirror members 20b to 20e and the reflecting members 30b to 30e arranged on the outer side of the vehicle are in a state where the optical axes AX2 to AX5 are inclined outward of the vehicle with respect to the reference direction D. Therefore, the distribution of the maximum luminous intensity can be made different in the left-right direction for each aerial image P. In the present embodiment, the inclination angles of the optical axes AX1 to AX5 with respect to the reference direction D gradually increase from the inner side of the vehicle toward the outer side of the vehicle. Therefore, an aerial image P having sufficient visibility when viewed from a wide range can be formed from the inner side of the vehicle to the outer side of the vehicle.
[0026] The inner housing 40 is arranged on the back side in the reference direction D with respect to the reflecting member 30, and holds the mirror member 20 and the reflecting member 30.
[0027] The lamp housing 50 houses the above-described light source unit 10, mirror member 20, reflection member 30, and inner housing 40. When the vehicle lamp 100 is viewed from the front side in the reference direction D, the lamp housing 50 has a portion that can be seen reflected in the mirror member 20. In the present embodiment, the lamp housing 50 has a bottom surface portion 51 disposed below the mirror member 20 as such a portion. The bottom surface portion 51 absorbs the light that passes through the mirror member 20 downward from the light source unit 10. The bottom surface portion 51 is formed, for example, in the same color or a similar color as the exterior color of the vehicle 1. When the vehicle lamp 100 is viewed from the front side in the reference direction D, the bottom surface portion 51 can be seen in a state of being reflected on the front side of the light transmission and reflection surface 21 of the mirror member 20. For this reason, it is possible to visually recognize the inside of the vehicle lamp 100 as if it were melted into the exterior of the vehicle 1. Further, when the aerial image P is formed in this state, a visual effect that the aerial image P emerges in the lamp chamber 70 of the vehicle lamp 100 in a state of being melted into the exterior of the vehicle 1 can be obtained.
[0028] Next, the operation of the vehicle lamp 100 will be described. 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. The control circuit provided on the light source substrate 12 or the like performs emission control of the light source 11 according to the acquired signal.
[0029] The control circuit first causes the light source 11 to emit light. Thereby, the light L1 is emitted from the light emitting surface 11a of the light source 11. This light L1 is emitted toward the mirror member 20 in a diffused state by the inner lenses 13 and 14. When the light L1 reaches the mirror member 20, a part of it is reflected by the light transmission and reflection surface 21 of the mirror member 20 to the back side in the reference direction D.
[0030] The light L1 reflected by the light-transmissive reflecting surface 21 is reflected by the retroreflective surface 31 of the reflecting member 30 to the front side in the reference direction D, and a part thereof passes through the light-transmissive reflecting surface 21 of the mirror member 20. The light L1 that has passed through the light-transmissive reflecting surface 21 forms an aerial image P by imaging at the imaging position R on the front side in the reference direction D with respect to the mirror member 20. In this case, since the light L1 travels and forms an image on the front side in the reference direction D, the maximum luminous intensity of the aerial image P is distributed on the front side in the reference direction D. Therefore, when the vehicle lamp 100 is viewed from the reference direction D, the aerial image P can be seen floating in front of the mirror member 20 in the lamp chamber 70.
[0031] FIG. 5 is a diagram showing another example of a vehicle lamp according to the present embodiment. The vehicle lamp 200 shown in FIG. 5 has a configuration including a plurality of light sources 11 and a light source substrate 12 on which the plurality of light sources 11 are mounted as the light source unit 110, and is configured without the above-described inner lenses 13 and 14. As such a light source unit 110, for example, an LED display or the like can be used.
[0032] In the vehicle lamp 200, the light L2 emitted from the light-emitting surface 11a of the light source 11 is each emitted toward the mirror member 20. When the light L2 reaches the mirror member 20, a part thereof is reflected by the light-transmissive reflecting surface 21 of the mirror member 20 to the back side in the reference direction D. The light L2 reflected by the light-transmissive reflecting surface 21 is reflected by the retroreflective surface 31 of the reflecting member 30 to the front side in the reference direction D, and a part thereof passes through the light-transmissive reflecting surface 21 of the mirror member 20. The light L2 that has passed through the light-transmissive reflecting surface 21 forms an aerial image P2 by imaging at the imaging position R2 on the front side in the reference direction D with respect to the mirror member 20. In the vehicle lamp 200 in which the inner lens is not provided, the imaging position R2 is the imaging position for each light source 11. Therefore, the aerial image P2 is formed for each light source 11.
[0033] FIG. 6 is a diagram showing another example of the vehicle lamp according to the present embodiment. In the vehicle lamp 300 shown in FIG. 6, as the light source unit 210, a light emitting panel 211 such as a liquid crystal panel, an organic EL panel, or an OLED (Organic Light Emitting Diode) panel is used. Further, the light source unit 210 is configured without an inner lens.
[0034] In the vehicle lamp 300, the light L3 emitted from the light emitting surface 211a of the light emitting panel 211 is emitted toward the mirror member 20. When the light L3 reaches the mirror member 20, a part of it is reflected by the light transmission and reflection surface 21 of the mirror member 20 to the back side in the reference direction D, and then reflected by the retroreflective surface 31 of the reflecting member 30 to the front side in the reference direction D, and further a part of it passes through the light transmission and reflection surface 21 of the mirror member 20. The light L3 that has passed through the light transmission and reflection surface 21 forms an aerial image P3 by imaging at the imaging position R3 on the front side of the mirror member 20 in the reference direction D. In the vehicle lamp 300 having the light emitting panel 211 as the light source unit 210, the imaging position R3 is a region corresponding to the light emitting panel 211. In this case, the aerial image P3 is formed in a shape corresponding to the light emitting panel 211.
[0035] FIG. 7 is a diagram showing another example of the vehicle lamp according to the present embodiment. In the vehicle lamp 400 shown in FIG. 7, the position of the light source unit 10 is arranged at a position farther above (lateral with respect to the reference direction D) from the mirror member 20 than in the vehicle lamp 100. Other configurations of the vehicle lamp 400 are the same as those of the vehicle lamp 100.
[0036] In the vehicle lamp 400, the light L4 emitted from the light emitting surface 11a of the light source 11 is emitted toward the mirror member 20 respectively. When the light L4 reaches the mirror member 20, a part of it is reflected by the light transmission and reflection surface 21 of the mirror member 20 to the back side in the reference direction D, and then reflected by the retroreflective surface 31 of the reflecting member 30 to the front side in the reference direction D, and further a part of it passes through the light transmission and reflection surface 21 of the mirror member 20. The light L4 that has passed through the light transmission and reflection surface 21 forms an aerial image P4 by imaging at the imaging position R4 on the front side of the mirror member 20 in the reference direction D.
[0037] In the vehicle lamp 400, the imaging position R4 is a position corresponding to the distance between the light source unit 10 and the mirror member 20. That is, the longer the distance between the light source unit 10 and the mirror member 20, the more the imaging position R4 is set at a position away from the front side of the mirror member 20 in the reference direction D. Therefore, by arranging the position of the light source unit 10 above the mirror member 20 as compared with the vehicle lamp 100, the imaging position R4 can be set at a position further away from the front side in the reference direction D. For example, as shown in FIG. 7, the imaging position R4 can be set to be located on the front side of the reference direction D with respect to the outer lens 60. With this configuration, an observer viewing the vehicle lamp 400 from the front side in the reference direction D can visually recognize the aerial image R4 that protrudes from the vehicle lamp 400 to the front side in the reference direction D.
[0038] FIGS. 8 and 9 are views showing other examples of the vehicle lamp according to the present embodiment. The vehicle lamp 500 shown in FIGS. 8 and 9 has a configuration in which a second light source unit 410 is further provided with respect to the configuration of the vehicle lamp 100 described above. The second light source unit 410 includes a light source 411 and a light source substrate 412. The light source 411 and the light source substrate 412 have the same configuration as the light source 11 and the light source substrate 12 described above. The light emitting surface 411a of each light source 411 is directed toward the front side in the reference direction D. The light L5 emitted from the light source 411 is emitted to the front side in the reference direction D. The second light source unit 410 is disposed on the back side of the reference direction D with respect to the reflecting member 30. Note that the reflecting member 30 is configured to be able to transmit at least a part of the light L5 to the front side in the reference direction D.
[0039] As shown in FIG. 9, the second light source unit 410 emits light from each light source 411 to the front side in the reference direction D. The light L5 emitted from the second light source unit 410 passes through the reflecting member 30 and is emitted from the outer lens 60 to the outside of the vehicle lamp 500 toward the front side in the reference direction D. Regarding the light L5 emitted from the outer lens 60, when the vehicle lamp 500 is viewed from the front side in the reference direction D, it can be visually recognized that the light passes through the mirror surface member 20 and the retroreflective surface 31 of the reflecting member 30 is shining. Thus, the vehicle lamp 500 can form two different light emission states, namely, the light emission state by the light source unit 10 and the light emission state by the second light source unit 410.
[0040] As described above, the vehicle lamp 100 according to the present embodiment includes a light source unit 10 that emits light L1 in a direction intersecting the reference direction D, which is the direction viewed from the front side in the vehicle-mounted state; a mirror surface member 20 that can reflect a part of the light L1 emitted from the light source unit 10 to the back side of the reference direction D and can transmit a part of the light L1 that travels from the back side to the front side of the reference direction D to the front side of the reference direction D; and a reflecting member 30 that is disposed on the back side of the reference direction D with respect to the mirror surface member 20 and retroreflects the light L1 reflected by the mirror surface member 20 to the front side of the reference direction D, so that an aerial image P is formed at the imaging position R on the front side of the mirror surface member 20 with respect to the reference direction D by the light L1 passing through the mirror surface member 20.
[0041] According to this configuration, since the aerial image P is formed by the light L1 that travels to the front side of the reference direction D and forms an image, the maximum luminous intensity of the aerial image P can be distributed to the front side of the reference direction D. Thereby, it becomes possible to form the aerial image P having sufficient visibility when viewed from the front side in the vehicle-mounted state.
[0042] In the vehicle lamp 100 according to the present embodiment, a plurality of reflecting members 30 are arranged along the left - right direction in the vehicle - mounted state, and the plurality of reflecting members 30 are arranged such that the inclination in the left - right direction with respect to the reference direction D of the retro - reflecting surface 31 that retro - reflects the light L1 is different. According to this configuration, the distribution of the maximum luminous intensity can be made different in the left - right direction for each aerial image P. Therefore, an aerial image P having sufficient visibility can be formed when viewed from a wide range from the inside of the vehicle to the outside of the vehicle.
[0043] In the vehicle lamp 100 according to the present embodiment, the mirror member 20 is arranged in a state of covering the light source unit 10 when viewed from the reference direction D. According to this configuration, when the vehicle lamp 100 is viewed from the reference direction D, the light source unit 10 is hidden, so that it is possible to visually recognize the state in which the aerial image P emerges from the state where the light source unit 10 does not exist.
[0044] In the vehicle lamp 100 according to the present embodiment, a lamp housing 50 that houses the light source unit 10, the mirror member 20, and the reflecting member 30 is further provided. The mirror member 20 is arranged such that a part (bottom surface portion 51) of the lamp housing 50 is reflected when viewed from the front side in the reference direction D. The lamp housing 50 is formed such that at least the portion reflected in the mirror member 20 when viewed from the front side in the reference direction D has the same color as the exterior color of the vehicle 1. According to this configuration, when the vehicle lamp 100 is viewed from the front side in the reference direction D, since the bottom surface portion 51 is seen reflected on the front side of the light - transmissive reflecting surface 21 of the mirror member 20, it is possible to make it visually recognized as if the inside of the vehicle lamp 100 is melted into the exterior of the vehicle 1. Also, when the aerial image P is formed in this state, a visual effect can be obtained in which the aerial image P emerges in the lamp chamber 70 of the vehicle lamp 100 in a state of being melted into the exterior of the vehicle 1.
[0045] The vehicle lamp 400 according to this embodiment further includes an outer lens 60 disposed on the front side in the reference direction D with respect to the light source unit 10, the mirror member 20, and the reflection member 30. The mirror member 20 is a half mirror that transmits part of the light L4 and reflects part of it. The imaging position R is disposed on the front side in the reference direction D with respect to the outer lens 60. With this configuration, an observer viewing the vehicle lamp 400 from the front side in the reference direction D can visually recognize the aerial image R4 that protrudes from the vehicle lamp 400 to the front side in the reference direction D.
[0046] In the vehicle lamp 500 according to this embodiment, the reflection member 30 is capable of transmitting the lights L1 and L2 that travel from the back side to the front side in the reference direction D to the front side in the reference direction D, and further includes a second light source unit 410 that is disposed on the back side in the reference direction D with respect to the reflection member 30 and emits the lights L1 and L2 toward the front side in the reference direction D. With this configuration, two different light emission states, namely, the light emission state by the light source unit 10 and the light emission state by the second light source unit 410, can be formed.
[0047] The technical scope of the present invention is not limited to the above embodiments, and appropriate modifications can be made without departing from the spirit of the present invention.
Explanation of Reference Numerals
[0048] D…Reference direction, L1, L2, L3, L4, L5…Light, P, P2, P3, P4, R4…Aerial image, R, R2, R3, R4…Imaging position, 1…Vehicle, 2…Vehicle body, 3…Running device, 4…Tire, 5…Wheel, 6…Entrance / exit door, 7…Back door, 10, 110, 210…Light source unit, 11, 411…Light source, 11a, 211a, 411a…Light emitting surface, 12, 412…Light source substrate, 13, 14…Inner lens, 20…Mirror member, 21…Light transmission and reflection surface, 30…Reflection member, 31…Retroreflective surface, 40…Inner housing, 50…Lamp housing, 51…Bottom surface, 60…Outer lens, 70…Lamp chamber, 100, 200, 300, 400, 500…Vehicle lamp, 211…Light emitting panel, 410…Second light source unit
Claims
1. A light source unit that emits light in a direction intersecting a reference direction, which is the direction viewed from the front side in the vehicle-mounted state, A mirror member that can reflect a part of the light emitted from the light source unit to the back side of the reference direction and can transmit a part of the light traveling from the back side to the front side of the reference direction to the front side of the reference direction, A reflecting member that is disposed on the back side of the reference direction with respect to the mirror member and retroreflects the light reflected by the mirror member to the front side of the reference direction, thereby forming an aerial image at the imaging position on the front side of the mirror member with respect to the reference direction by the light transmitted through the mirror member and comprising The mirror member is formed of a single member, The reflecting members are arranged in a plurality along the left-right direction in the vehicle-mounted state A vehicle lamp.
2. The mirror member and the reflecting member are divided into a plurality of segments along the left-right direction in the vehicle-mounted state, and are arranged such that the optical axes of the light reflected by the reflecting member and transmitted through the mirror member are different in the left-right direction for each segment The vehicle lamp according to claim 1.
3. The mirror member is arranged in a state of covering the light source unit when viewed from the reference direction The vehicle lamp according to claim 1 or claim 2.
4. Further comprising a lamp housing that houses the light source unit, the mirror member, and the reflecting member, The mirror member is arranged such that a part of the lamp housing is reflected when viewed from the front side of the reference direction, The lamp housing is formed such that at least the part reflected on the mirror member when viewed from the front side of the reference direction has the same color as the exterior color of the vehicle The vehicle lamp according to any one of claims 1 to 3.
5. Further comprising an outer lens disposed on the front side in the reference direction with respect to the light source unit, the mirror member, and the reflection member. The mirror member is a half mirror that transmits part of the light and reflects part of the light. The imaging position is disposed on the front side in the reference direction with respect to the outer lens. The vehicle lamp according to any one of claims 1 to 4.
6. The reflection member is capable of transmitting light traveling from the back side to the front side in the reference direction to the front side in the reference direction. Further comprising a second light source unit disposed on the back side in the reference direction with respect to the reflection member and emitting light toward the front side in the reference direction. The vehicle lamp according to any one of claims 1 to 5.
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