Road surface guide lamp

Abstract

To provide a road surface guide light which is installed on a road surface and allows a passage zone to be recognized more effectively than before by a light emission mode.SOLUTION: A road surface guide light 1 embedded in a lane portion of a road and capable of clearly indicating a division of a traffic lane includes a light emitting unit 12 including a plurality of light emitting bodies (121, 122, 123) and capable of emitting light in emission colors different from each other, and the plurality of light emitting bodies (121, 122, 123) emit light toward the traffic lane at a predetermined horizontal angle and a predetermined vertical angle.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a road guide light that can be installed on a road surface and that can make a lane visible by emitting light in a certain manner. [Background technology]

[0002] Conventionally, self-luminous road studs have been used to clearly indicate lane boundaries on roads. For example, on roads where the center line of the road changes depending on the time of day, such self-luminous road studs are sometimes installed at predetermined intervals on lane boundaries to allow drivers to more clearly recognize the current center line of the road.

[0003] As an example of the self-luminous road stud described above, the invention of a "self-luminous road stud" is disclosed in Patent Document 1. The "self-luminous road stud" in Patent Document 1 increases the difference in brightness between when it is lit and when it is off, thereby improving visibility for drivers of cars and pedestrians.

[0004] In this situation, the Ministry of Land, Infrastructure, Transport and Tourism and the National Police Agency revised the "Guidelines for Creating a Safe and Comfortable Bicycle Environment" in 2016, and the Tokyo Metropolitan Police Department and Tokyo Metropolitan Government, for example, have been actively installing "bicycle navigation marks" and "bicycle navigation lines." [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Laid-Open No. 2006-112043 Summary of the Invention [Problem to be solved by the invention]

[0006] However, although the above-mentioned "bicycle navigation marks" and "bicycle navigation lines" provide a certain level of visibility for car drivers, they can be less visible, especially at night, and as a result, the effectiveness of lane separation can be reduced.

[0007] SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a road guide light that can be installed on a road surface and that can make traffic lanes more visible than ever before by emitting light in a certain manner. [Means for solving the problem]

[0008] The present invention is a road guide light that can be embedded in the lane section of a road to clearly indicate the division of traffic lanes, and is characterized in that it has a plurality of light-emitting bodies and light-emitting units that can emit light in different light colors, and the plurality of light-emitting bodies emit light toward the traffic lanes at a predetermined horizontal angle and a predetermined vertical angle.

[0009] Furthermore, the road guide light is characterized in that the plurality of light emitters emit light toward the traffic lane at different vertical angles.

[0010] Furthermore, the plurality of light-emitting elements are characterized in that they comprise a first light-emitting element that emits light in a predetermined light color, a second light-emitting element that emits light in a light color different from that of the first light-emitting element, and a third light-emitting element that emits light in a light color different from that of the first light-emitting element and the second light-emitting element.

[0011] Furthermore, the road guide light is characterized in that the vertical angle of the first light emitter is smaller than the vertical angle of the second light emitter, and the vertical angle of the second light emitter is smaller than the vertical angle of the third light emitter.

[0012] Furthermore, the road guide light is characterized in that the light color of the first light emitter is green, the light color of the second light emitter is blue, and the light color of the third light emitter is red.

[0013] Furthermore, the road guide lights are characterized in that they are embedded at predetermined intervals at the edge of the lane boundary line of a bicycle lane.

[0014] According to the configuration of the present invention, the vehicle has light-emitting elements that can emit light in different colors, and emits light toward the traffic lane at a predetermined horizontal angle and a predetermined vertical angle, making it possible to make the traffic lane more visible than before. [Brief explanation of the drawings]

[0015] [Figure 1] 1 is a cross-sectional view showing a schematic cross-sectional configuration of an embodiment of a road guide light of the present invention. [Figure 2] FIG. 2 is a plan view showing the horizontal angle of the light-emitting direction of the light-emitting unit in one embodiment of the road guide light of the present invention. [Figure 3] FIG. 2 is a side view showing the vertical angle of the light-emitting direction of the light-emitting unit in one embodiment of the road guide light of the present invention. [Figure 4] FIG. 10 is a plan view showing the horizontal angle of the light-emitting direction of the light-emitting unit in another embodiment of the road guide light of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0016] Hereinafter, an embodiment of a road guide light of the present invention will be described with reference to the drawings.

[0017] 1 shows a schematic cross-sectional configuration of a road guide light 1 of this embodiment, which is embedded in the road surface and connected to wiring that serves as a power supply source. A light-emitting unit 12 having a plurality of light-emitting bodies (121, 122, 123) and capable of emitting light in different colors is located inside a housing 10 below a translucent cover member 11 of the road guide light 1, and the plurality of light-emitting bodies (121, 122, 123) are capable of emitting light toward the traffic lane at a predetermined horizontal angle and a predetermined vertical angle.

[0018] In other words, by emitting light toward the traffic lane at a predetermined horizontal angle and a predetermined vertical angle, the multiple light emitters (121, 122, 123) can effectively make the emitted light visible to drivers of bicycles and cars traveling at a point away from the installation location of the road guide light 1.

[0019] The multiple light-emitting bodies (121, 122, 123) in this embodiment are composed of a first light-emitting body 121 that emits light in a predetermined light color, a second light-emitting body 122 that emits light in a light color different from that of the first light-emitting body 121, and a third light-emitting body 123 that emits light in a light color different from that of the first light-emitting body and second light-emitting body.

[0020] 1, these multiple light emitters (121, 122, 123) are configured to emit light toward the traffic lane at different vertical angles, and in this embodiment, the first light emitter 121 emits light at a vertical angle of 14°, the second light emitter 122 at a vertical angle of 22°, and the third light emitter 123 at a vertical angle of 30°. In other words, the vertical angle of the first light emitter 121 is set smaller than the vertical angle of the second light emitter 122, and the vertical angle of the second light emitter 122 is set smaller than the vertical angle of the third light emitter 123.

[0021] With this configuration, as shown in Figure 3, for example, if the viewpoint of the driver of a large vehicle is 2.4 m above the road surface, the light of the first light emitter 121, which emits at a vertical angle of 14°, will be the strongest light that can be seen by the driver at a position 10 m before the installation location of the road guide light 1.

[0022] Thereafter, the light of the second light emitter 122, which is emitted at a vertical angle of 22°, becomes the strongest light that can be seen by the driver at a position 6 m before the installation location of the road guide light 1, and the light of the third light emitter 123, which is emitted at a vertical angle of 30°, becomes the strongest light that can be seen by the driver at a position 4 m before the installation location of the road guide light 1.

[0023] In this embodiment, as shown in the figure, the light color of the first light-emitting element 121 is green (G), the light color of the second light-emitting element 122 is blue (B), and the light color of the third light-emitting element 123 is red (R), so that a driver traveling in a vehicle can see the light emission pattern of the road guide light 1 in the order of green to blue to red as they approach the location where the road guide light 1 is installed.

[0024] Therefore, when road guide lights 1 are installed in the lane sections to clearly indicate the division of traffic lanes, it becomes possible to make vehicle drivers more effectively aware of the division of traffic lanes.

[0025] The luminous color and vertical angle of each of the light emitters (121, 122, 123) in this embodiment can be set arbitrarily, and are not necessarily limited to the angles shown in the drawings.

[0026] Moreover, LEDs can be suitably used for the light emitters (121, 122, 123), and a reflective member 14 such as a reflector can be provided to improve visibility.

[0027] Next, Fig. 2 shows a diagram for explaining the horizontal angles of the light-emitting elements (121, 122, 123) in this embodiment. Fig. 2(a) shows a schematic plan view of a road guide light 1 installed in a lane section to clearly indicate the division of traffic lanes, and each light-emitting element (121, 122, 123) of the light-emitting unit 12 is configured to emit light toward the traffic lane in which the vehicle is traveling at a horizontal angle of 11°.

[0028] Figure 2(b) shows a plan view of road guide lights 1 installed at a predetermined interval (5m intervals in this embodiment) at the edge of the lane boundary line of a bicycle lane. By emitting light at the horizontal angle described above, the light from each light-emitting element (121, 122, 123) becomes most visible to drivers at a position 10m before the installation location of the road guide light 1.

[0029] Therefore, when road guide lights 1 are installed in the lane sections to clearly indicate the division of traffic lanes, it becomes possible for vehicle drivers to recognize the division of traffic lanes more clearly.

[0030] (Other embodiments) Although one embodiment of the road guide lamp of the present invention has been described above, the present invention is not necessarily limited to the above-described embodiment, and various modifications such as those described below are possible.

[0031] For example, as shown in FIG. 4(a), it is also possible to arrange a plurality of light emitters (121, 122, 123) as indicated by the dashed lines, thereby making it possible to improve visibility for the driver.

[0032] Furthermore, it is also possible to make the horizontal angles different for each of the light emitters (121, 122, 123).

[0033] Specifically, as shown in the figure, it is possible to make the first light emitter 121 emit light at a horizontal angle of 26°, the second light emitter 122 emit light at an angle of 18°, and the third light emitter 123 emit light at an angle of 11°. When configured in this way, as shown in Figure 4(b), the driver can see the light emitted by each light emitter (121, 122, 123) at the strongest light corresponding to the position of the driver driving the vehicle (10 m, 6 m, 4 m).

[0034] That is, if the light color of the first light-emitting element 121 is green (G), the light color of the second light-emitting element 122 is blue (B), and the light color of the third light-emitting element 123 is red (R) as shown in the figure, a driver traveling in a vehicle will be able to see the light emission pattern of the road guide light 1 in the order of green to blue to red as they approach the location where the road guide light 1 is installed.

[0035] Although the embodiments of the present invention have been described above with reference to the drawings, the specific configurations are not limited to these embodiments. The scope of the present invention is defined by the claims rather than the description of the above embodiments, and includes all modifications within the meaning and scope of the claims. Furthermore, the specific materials, dimensions, shapes, etc. described in the above examples can be modified within the scope of solving the problems of the present invention. [Explanation of symbols]

[0036] 1 Road guide lights 10. Cabinet 11 Cover member 12 Light-emitting part 121 First Light-Emitting Body 122 Second Light-Emitting Body 123 Third Light-Emitting Body 13 Light-emitting unit support member 14 Reflective material

Claims

1. A road guide light that can be embedded in a lane of a road to clearly indicate the division of traffic lanes, a light-emitting section that includes a plurality of light-emitting bodies and that can emit light in different colors; The plurality of light emitters emit light toward the traffic lane at a predetermined horizontal angle and a predetermined vertical angle. A road guide light characterized by the above.

2. The plurality of light emitters emit light toward the traffic lane at different vertical angles.

2. The road guide light according to claim 1.

3. The plurality of light emitters are a first light emitter that emits light in a predetermined emission color; A second light emitter that emits light in a different color from the first light emitter; a third light emitter that emits light in a color different from that of the first light emitter and the second light emitter; 3. The road guide light according to claim 1 or 2.

4. The vertical angle of the first light emitter is smaller than the vertical angle of the second light emitter, and the vertical angle of the second light emitter is smaller than the vertical angle of the third light emitter.

4. The road guide light according to claim 3.

5. the first light emitter has a green light emission color; the second light emitter has a blue emission color; The third light emitter emits red light.

5. The road guide light according to claim 4.

6. The road guide lights are embedded at predetermined intervals at the edge of the lane boundary line of the bicycle lane.

3. The road guide light according to claim 1 or 2.

7. The road guide lights are embedded at predetermined intervals at the edge of the lane boundary line of the bicycle lane.

4. The road guide light according to claim 3.

8. The road guide lights are embedded at predetermined intervals at the edge of the lane boundary line of the bicycle lane.

5. The road guide light according to claim 4.

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