JP2002038433A - Stimulation board for indication of road face and indication system of road face using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a stimulation board for indication of a road face and an indication system of a road face capable of accurately showing visually an indication pattern of a road face for observers even in the dark, poor visibility, or in the case that a road is covered with fallen snow or rain with snow is frozen on the road. SOLUTION: By using laser beam as light led in optical fiber embedded in a base body constituting a stimulation board, mist or the like causing deterioration of visibility, which exists in the sharp advancing pass special to laser beam is colored, hence, it can clearly inform observers of a light indication pattern even when visibility is poor. A light indication pattern can be clearly and visually shown to observers because the laser beam makes fallen snow or ice on a road existing in the advancing pass of the beam color even when there is fallen snow or frozen rainwater with snow on the road face. Further, even in the dark, a light indication pattern formed at the light diffusion end can be clearly and visually shown to the observers.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display means for road traffic, and particularly to an intersection at night or in a situation where visibility is obstructed by heavy fog, heavy rain, snowstorm, or when there is snow on the road surface. However, the present invention relates to a road surface display luminaire for easily indicating an instruction sign, a regulation or warning sign, or other display necessary for road traffic, and a road surface display system using the same.

[0002]

2. Description of the Related Art Among various signs and displays for road traffic, display means provided on a road surface, such as a striped line indicating a pedestrian crossing, a vehicle stop line, a center separation line, or a course direction indicating mark, etc. The required road surface is painted with paint. It is also known to provide a projection-like member carrying a reflector for improving visibility at night, especially at the center separation line and the direction of course.

[0003] Incidentally, since this kind of sign or display is well known, no particular reference is given.

In the above prior art, since various road surface display means are mainly composed of paint, they are worn or damaged by the traffic of vehicles and the like, and frequent repainting is required on a road surface with a high traffic frequency. However, there is a problem that a great deal of labor and cost are required for maintenance and management.

[0005] The conventional road surface display means using paint has low visibility at night, and the installation position cannot be discriminated if there is submergence, snow cover, or freezing of rain and snow water. There is. Even in the case of the one provided with the reflection plate, the effect is remarkably reduced when covered with a shield such as snow.

[0006]

[0005] Particularly in heavy snowfall areas,
It is empirically known that when there is snow on the road surface, it is extremely difficult to identify a stop line or a route instruction pattern in a place where there is no traffic light. In view of the above, the present inventor has disclosed in Japanese Patent Application Nos. 8-182988 and 8-182985 a road surface display luminescent plate which is easy to maintain and has good night visibility and a road surface display system using the same. Disclosed. This road surface display luminous plate is embedded in a base constituting the luminous plate, has a large number of optical fibers forming a pattern of a light diffusion end protruding at one end, and emits illumination light introduced from a light source through the optical fiber. The light is emitted from the light diffusion end to form an optical display by the pattern of the light diffusion end.

According to this illuminating plate for road surface display, since the illumination light is emitted from the light diffusion end of the optical fiber, the visibility at night is improved. However, the road surface is covered with snow or freezing of rain and snow water. In such a state, sufficient visibility may not be secured. Also, when visibility is poor due to dense fog, heavy rain, snowstorm, etc., sufficient visibility cannot be secured,
There is a problem that it is not possible to confirm even the presence of the road surface display plate. In addition, fog, rain, snow, water, smoke, and the like surrounding the light diffusion end are illuminated by the illumination light emitted from the light diffusion end, so that an observer such as a driver or a pedestrian can change the light display pattern to the actual range. There is a problem that it is dangerous because the position can be identified only dimly over a wider area, and the accurate position of the light display pattern or the like cannot be identified.

[0008] Therefore, even in the dark, when visibility is poor, or when there is snow on the road surface, freezing of rain and snow, etc., the road surface display pattern is provided to the observer. There is a demand for a road surface display means that can accurately recognize the road surface and is easy to maintain.

[0009]

Means for Solving the Problems The present inventor has studied to achieve the above object, and as a result, as the light to be introduced into the optical fiber buried in the substrate constituting the bright plate, not the illumination light but the illumination light By using a laser beam with extremely high directivity compared to, a laser beam is emitted from the light diffusion end, and this laser beam exists in a sharp traveling path peculiar to the laser beam and causes a hindrance to view. It can be seen that fog, rain, snow and water, smoke, etc. develop, and in a situation where visibility is obstructed, sharp light streaks are created in the space on the light display pattern, making the light display pattern more clear. We have found something we can inform the observer.

Further, the inventor of the present invention has proposed that when there is snow on the road surface, freezing of rain and snow water, etc., the laser beam used for the road surface display luminous plate may be snowy or snowy on a sharp traveling path peculiar to the laser beam. It has been found that even when the light display pattern is covered with snow, ice, or the like, the light can be clearly recognized by an observer in order to develop ice.

Further, the present inventor has proposed that the laser beam used for the road surface display luminous plate illuminates the light diffusing end, whereby the light display pattern formed by the light diffusing end can be formed even in darkness such as at night. It was found that it was clearly visible to the observer.

The present inventor has also found that the use of a laser eliminates complicated operations such as replacement of a light bulb or the like due to a break, thereby making maintenance easier.

That is, in the first aspect of the present invention, a base made of a hard elastic material fixedly installed on a roadbed, a frame member provided on the outer periphery of the base, and one of the base members embedded in the base. A plurality of optical fibers that form a pattern of a light diffusion end with one end protruding from the surface and penetrate the other surface of the base; and a plurality of optical fibers that are installed on one of the side surface and the back surface of the base. An optical fiber converging section that converges and holds the other end, and a connector that is installed in the optical fiber converging section and that couples a laser light source fiber connected to a laser oscillation device, comprises a laser introduced from the laser oscillation device, And emitting light from the light diffusion end to form a light display area by a pattern of the light diffusion end on one surface of the base. Road surface display bright plate is provided.

According to a second aspect of the present invention, there is provided a base made of a hard material fixedly mounted on a roadbed, and a light diffusion end pattern embedded in the base and having one end protruding from one surface thereof. A large number of optical fibers, and an optical fiber converging portion that is provided on one of the side surface and the back surface of the base and converges and holds the other end of the large number of optical fibers;
A connector for coupling a laser light source fiber connected to a laser oscillation device, which is installed in the optical fiber converging section, and a laser introduced from the laser oscillation device,
A luminous plate for road surface display is provided, in which a light display area is formed on one surface of the base by a pattern of the light diffusion end by emitting light from the light diffusion end through the optical fiber.

In the first and second aspects of the present invention, it is preferable that the laser has a wavelength in an infrared region.

In the first and second aspects of the present invention, the base may have a mark shape for indicating a traveling direction of a road surface. Further, the base may have a rectangular plate shape forming a striped line at the intersection. Further, the base may have a rectangular plate shape forming a vehicle stop line at an intersection. Further, the base may have a strip shape constituting a center separation line of a road surface.

According to a third aspect of the present invention, there is provided a road surface display system comprising at least one of the above-described road surface display luminescent plates.

[0018]

Embodiments of the present invention will be described below in detail with reference to the accompanying drawings.

FIG. 1 is a schematic plan view illustrating an example of a road surface display luminaire according to the first embodiment of the present invention. 1 is a rectangular base made of a hard elastic material colored white or yellow or other colors, 2 is a frame member, 3 is a light diffusion end, 4 is an optical fiber converging section, 5 is a connector, 10 is a luminous plate for road surface display It is.

FIG. 2 is a schematic plan view illustrating another example of the road surface display luminaire according to the first embodiment of the present invention.
Reference numeral 1 denotes a substrate having a shape of a route indicating pattern made of a hard elastic material colored white, yellow, or another color;
Is a frame member, 3 is a light diffusion end, 4 is an optical fiber converging section, 5
Denotes a connector, and 10 denotes a road surface display plate.

In FIG. 1 and FIG.
0 has a base 1 formed in a predetermined pattern made of hard rubber, and a frame member 2 provided around the periphery thereof,
One end of a large number of optical fibers is projected from one surface (surface) of the base 1 to form a light diffusion end 3. This many light diffusion ends 3
Thus, a bright spot pattern is formed on the surface of the base 1. The other end of the optical fiber penetrates the road surface display luminescent plate 10 and is laid on the other surface, extends to one side thereof, and forms the optical fiber converging portion 4 on the one side.

The optical fiber converging section 4 is provided with a connector 5 for introducing a laser transmitted from a laser oscillation device (not shown), transmitting the laser to the light diffusion end 3 and radiating the same from the light diffusion end 3. A light emitting area of a predetermined pattern is formed by the bright spot distribution radiated from the pattern of the light diffusion end 3.

The frame member 2 holds the outer shape of the base and facilitates construction on a road surface. Note that the frame member 2 is not always necessary, and is unnecessary when the shape of the material of the base 1 is highly maintainable, or a frame member can be separately used at the time of construction.

The size of the road surface display panel 10 can be determined in accordance with the provisions of the Road Traffic Act. For example, in FIG. 1, the length L is 2000 mm and the width W is 300 m
m. The thickness of the base 1 and the thickness of the frame member 2 are not particularly limited, and are appropriately selected depending on the material of the roadbed, the traffic volume, and other conditions. Also, the position of the inner peripheral surface of the frame member 2 with respect to the outer peripheral surface of the base 1 is not particularly limited, and is appropriately selected depending on the material of the roadbed, the traffic volume, and other conditions.

FIG. 3 is an enlarged schematic view of a portion A in FIG. 1 or FIG. The light diffusion edges 3 are arranged on the surface of the base 1 at a predetermined interval, that is, at a predetermined pitch in a staggered manner. In the present embodiment, the arrangement of the light diffusion ends 3 is a staggered pattern. However, the arrangement is not limited to this, and the light diffusion ends 3 may be arranged vertically and horizontally along a straight line, or may be arranged randomly at an average density. You can also.

FIG. 4 is an enlarged schematic view of a portion B in FIG. 1 or FIG. 2. An optical fiber converging section 4 is provided on one side of the road surface display luminaire 10, and this optical fiber converging section 4 A connector 5 for introducing a laser transmitted from a laser oscillation device (not shown) and transmitting the laser to the light diffusion end 3 is provided.

Although the optical fiber converging portion 4 and the connector 5 are provided so as to protrude from the side surface of the road surface display illuminating plate 10, they may be provided at positions where they are retracted inside from the side surface. .

FIG. 5 is a schematic side view of an example of a road surface display luminaire according to the first embodiment of the present invention, wherein 6 is an optical fiber and 7 is a support pin. In the figure, an optical fiber 6 having a light diffusion end 3 formed on the surface of a road surface display luminescent plate 10 and penetrating therethrough is laid on the back surface of the road surface display luminescent plate 10 to reach an optical fiber converging section 4. The laser from the laser oscillation device introduced from the connector 5 is transmitted to the light diffusion end 3 via the optical fiber 6. In the figure, the optical fiber 6 is shown as far as the optical fiber converging section 4 in a state where it is separated from the back surface of the road surface display luminescent plate 10,
It can also be laid along the back surface or fixed with an adhesive or the like.

A plurality of support pins 7 are erected on the back surface of the road surface display luminaire 10, and are fixed in a predetermined position by being embedded in a roadbed at the time of construction. The diameter of the support pin 7 is, for example, 15 mm, and is appropriately selected depending on the material of the roadbed, the traffic volume, and other conditions.

FIG. 6 is an enlarged schematic cross-sectional view of a portion C in FIG. 5 and shows a state in which the optical fiber 6 is embedded in the base 1. One end of the optical fiber 6 penetrates from the back surface of the base 1 to the front surface side to form the light diffusion end 3 on the front surface. The other end of the optical fiber 6 extending from the back surface of the base 1 reaches the optical fiber converging section 4 as described above. Also, the support pin 7
Are directly erected on the back surface of the base 1. The optical fiber is buried in the substrate 1 perpendicularly to the surface of the substrate 1. For example, by embedding the optical fiber at a slight angle in the direction facing the vehicle on the road surface to be installed, the emission direction of the laser light can be improved. Can be adjusted.

The light diffusing end 3 is formed by processing the tip of the optical fiber 6 into a convex lens shape or by attaching a transparent or translucent member such as a glass drop to the tip to form a convex lens.
The directivity of the laser beam can be controlled. Also,
The cut surface of the optical fiber 6 may be exposed as it is.
In addition, it is also possible to use only a portion buried in the base as a light guide having a large diameter.

FIG. 7 is an enlarged schematic sectional view of a portion D in FIG. The optical fiber converging section 4 is fixed to the frame member 2, and a connector 5 is fixed to an end thereof. The connector 5 may be embedded in the base 1 when the frame member 2 is not used, or may be left free without being fixed.

FIG. 8 is a back view of a main part for explaining another example of the structure of the base in the example of the road surface display luminaire according to the first embodiment of the present invention. In the structural example shown in FIG. 5, the support pins 7 installed on the back surface of the base 1 are directly erected on the base 1, but in FIG. 8, the support pins 7 are laid via the reinforcing plate 8 bridging the frame member 2. Standing.

The reinforcing plate 8 has a width of 18 mm and a thickness of 2 m, for example.
m, and the diameter of the support pin 7 is, for example, 10 mm.
An appropriate value is selected according to the material of the roadbed, traffic volume and other conditions.

The road surface display luminaire according to the first aspect of the present invention is configured as described above.

Next, a road surface display luminaire according to a second embodiment of the present invention will be described in detail with reference to the drawings.

FIG. 9 is a schematic sectional view showing an example of a road surface display luminaire according to the second embodiment of the present invention. 1 'is a base made of a hard resin colored white or yellow or the like, 3 is a light diffusion end, 4 is an optical fiber converging section, 5 is a connector, and 10' is a luminous plate for road surface display. In the figure,
The road surface display plate 10 'is made of a hard resin, and the base 1'
One end of a large number of optical fibers protrudes from one surface (surface) of the optical fiber to form a light diffusion end 3. A required pattern of bright spots is formed on the surface of the base 1 'by the plurality of light diffusion ends 3.

The other end of the optical fiber is buried in the illuminating plate 10 for road surface display and extends to one side thereof, and the optical fiber converging portion 4 is formed on the one side. The optical fiber converging section 4 is provided with a connector 5 for introducing a laser transmitted from a laser oscillation device (not shown), transmitting the laser to the light diffusion end 3 and radiating the same from the light diffusion end 3.

A required light emitting area is formed by the distribution of bright spots emitted from the pattern of the light diffusion end 3. The road surface display luminescent plate 10 'of this embodiment is integrally formed by pouring a hard resin in a state where a predetermined number of optical fibers 6 are held at predetermined positions in a mold. For this reason, there is an advantage that manufacturing is easier than in the first mode.

In the second embodiment of the present invention, the material of the base 1 'is not limited to a hard resin, but may be concrete. Further, the same support pins as those in the first embodiment can be planted on the back surface.

The road surface display luminaire according to the second aspect of the present invention is configured as described above.

FIG. 10 shows an example of a road surface display system according to the third embodiment of the present invention. A crosswalk constructed using the road surface display luminaire according to the first and / or second embodiments of the present invention. FIG. 3 is a schematic plan view illustrating a configuration example of FIG. Reference numeral 11 denotes a road surface made of asphalt (concrete or other road surface material is also possible), 12 denotes a sidewalk, and 13 and 13 'denote side frames.

This pedestrian crossing is provided on a roadbed with a road surface display
0 or 10 'are arranged in accordance with the provisions of the Road Traffic Law, and the side frames 13 and 1 are respectively provided on the two short sides.
After arranging 3 ′ and connecting a laser light source fiber 6 ′ extending from a laser oscillation device (not shown) to the connector 5, a road surface material such as asphalt or concrete is filled between each road surface display plate 10 or 10 ′. And the whole is almost flat.

It is also possible to make the road surface display bright plate 10 or 10 'slightly protrude. The laser light source fiber 6 'may be laid along the side frames 13, 13' or buried therein. Also, in places where the width of the pedestrian crossing is wide, a road surface display luminaire with a length corresponding to the width may be prepared, or a reference size road surface luminaire is added in the width direction and installed. May be.

The illuminating plate for road surface indication to be added in the width direction can be constructed by providing a fiber connector for extension at both ends of the illuminating plate for road surface, or by laying a laser light source fiber also on the side frame 13 '. Become easy. Further, when the side frames 13 and 13 'are not used, the laser light source fiber 6' is laid through an appropriate portion below the road surface.

FIG. 11 shows an example of a road surface display system according to the third aspect of the present invention. A pedestrian crossing constructed using the road surface display luminaire according to the first and / or second aspects of the present invention. FIG. 3 is an enlarged partial view illustrating the configuration example of FIG. 14 is a signal pole, 15 is a laser oscillator, and D is a signal. In the figure, a pedestrian crossing has a pole 14 for supporting a traffic light D and a stripe line (so-called zebra zone) constructed using the road surface display plate 10 or 10 'according to the present invention. Oscillator 15
It has.

The laser light source fiber 6 ′ extending to the road surface display plate 10 or 10 ′ is connected to a laser oscillator 15 inside the pole 14 or along the pole. The laser oscillation device 15 oscillates a predetermined laser. The oscillated laser is transmitted to the road surface display plate 10 or 10 ′ by at least a bundle of laser light source fibers 6 ′ corresponding to the number of the road surface display plate 10 or 10 ′.

The laser oscillation device 15 is not limited to the one mounted on the pole 14, but may be mounted on a dedicated pole, installed on the ground, or buried in the ground. .

FIG. 12 is a schematic view for explaining a laser oscillation device for supplying a laser beam to a road surface display luminescent plate according to the first and second embodiments of the present invention. 14 is Paul, 15
Is a laser oscillation device, and the laser oscillation device 15 is mounted on, for example, a pole 14 that supports a traffic light.

The laser oscillation device 15 includes the light diffusion end 3
When there is a possibility that the laser beam emitted from the laser beam may hit the human body, or when necessary, a laser that oscillates a laser that does not affect the human body or has a very low risk of affecting the human body can be used. Regarding safety, J
Complies with IS C6802 laser product radiation safety standards. For example, one having a longer wavelength than the radiation region such as X-rays can be used. For example, ultraviolet light, visible light,
Infrared and microwave lasers can be used, and from the viewpoint of high safety, economy, and low technical effort, lasers in the infrared region can be preferably used. For example, a laser having a wavelength of 500 nm to 1000 nm can be mentioned, and more preferably 600 nm.
A laser having a wavelength of from nm to 800 nm can be mentioned, and most preferably a laser having a wavelength of from 630 nm to 670 nm can be mentioned. In this specification, the infrared region includes the near infrared region and the far infrared region. Further, a laser in a visible light region having a desired color can be used depending on the installation location and use of the road surface display luminescent plate according to the present embodiment.

Regarding the output of the laser, it is possible to use a low-power laser which does not affect the human body or has little possibility of affecting the human body when there is a possibility that the laser may hit the human body. it can. This is because the function as a road surface display pattern can be sufficiently exhibited even with a low output. However, depending on the installation location and use of the road surface display luminescent plate according to the present embodiment, those having a large output can be used.

Examples of the type of laser include a solid laser such as a ruby laser, a glass laser, a YAG laser, and a semiconductor laser; a liquid laser; an excimer laser, an argon laser, and a C laser.
A gas laser such as an O ₂ laser or a He—Ne laser can be used without any particular limitation. In particular, from the viewpoint of economy and safety, a solid-state laser can be preferably cited, and for example, a YAG laser, a semiconductor laser and the like can be cited as preferable examples.

The power source for driving the laser oscillation device 15 is supplied from a power source line for a traffic light, but is not limited to this. A solar battery, a wind power generator, and other power sources are installed on the pole 14 and a storage battery is provided. Can be arranged side by side to drive the laser oscillation device 15.

The above example describes the configuration of the stripes forming the pedestrian crossing at an intersection or the like. However, at the intersection or the like, a vehicle stop line, a center separation line, a mark indicating a course direction, and the like are additionally provided. Yes, these can be applied similarly.
That is, the vehicle stop line, the center separation line, and the mark indicating the course direction are constructed in substantially the same manner as the above-mentioned stripe lines, using a road surface display luminaire having a shape and size in accordance with the provisions of the Road Traffic Act. You.

FIG. 13 shows an example of a road surface display system according to the third embodiment of the present invention. The road surface display system according to the first and / or second embodiment of the present invention is constructed using the luminous plate for road surface display.
FIG. 4 is a schematic plan view illustrating a configuration example of a right turn instruction pattern installed at the center of an intersection.

This right-turn instruction pattern is shown in FIG. 3 at each intersection 5 where a road surface display radiator plate 10 or 10 ′ is arranged on a roadbed in accordance with a regulation, and each connector 5 installed on the side surface of the road surface display radiator plate 10 or 10 ′. After connecting the laser light source fiber 6 'extending from the laser oscillation device not to be used, a road surface material such as asphalt or concrete is filled between the road surface display luminaires 10 or 10', and the entire surface is constructed substantially flat.

FIG. 14 shows an example of a road surface display system according to the third embodiment of the present invention. The road surface display system includes a stripe line, a vehicle stop line, a center separation line, a course display pattern, and a right turn instruction pattern of a crosswalk forming an intersection. The first and / or second of the present invention
1 is a schematic plan view of a road surface display system using a road surface display luminaire according to an embodiment. A is a striped line (zebra zone),
B is a vehicle stop line, C is a center separation line, D is a traffic light, E is a pedestrian traffic light, F is a laser light source fiber, G and H are course display patterns, and I is a right turn instruction pattern.

In the same figure, the road surface display luminous plate constituting the stripe line A, the vehicle stop line B, the center separation line C, the course display patterns G and H, and the right turn instruction pattern I is mounted on the pole 14 of the traffic light D. The laser is supplied from the laser oscillation box 15 through the optical fiber F (6 ′ in the above embodiment). The description of the construction method is the same as that of the above-described example of the road surface display system.

Although the road surface display system according to the third aspect of the present invention is configured as described above, it is not limited to the above example, and the road surface display luminescent plate and / or the second
It is sufficient that the road surface display luminescent plate according to the aspect is configured using one or more types, a single type or a plurality of types.

Next, the operation of the road surface display luminaire according to the present invention and the operation of the road surface display system using the same will be described in detail.

The laser oscillation device 15 oscillates a laser by appropriately supplying electricity from a power supply. Laser oscillation device 15
The laser oscillated in the step (1) transmits the laser light source fiber 6 ′ and reaches the optical fiber converging section 4 via the connector 5. Next, the laser is transmitted from the optical fiber converging section 4 to the light diffusion end 3 via the optical fiber 6, and is emitted from the light diffusion end 3.

The laser beam emitted from the diffusion end 3 is
First, the light diffusion end 3 is colored, and travels straight through the atmosphere. If there are foreign substances such as ice, fog, rain, snow, smoke, etc. in the direction in which the laser beam travels, the laser beam travels straight by coloring them. That is, depending on the snow on the road surface, freezing of rain and snow water, etc., or the presence of foreign matter floating in the atmosphere, intermittent or continuous visible light streaks are formed in the range of the sharp traveling path peculiar to the laser beam. Occurs. The number of light streaks changes according to the number of laser beams. Even when the laser beam is in a region other than the visible light, snow, ice and floating foreign matter existing in the direction in which the laser beam travels are colored, and intermittent or continuous sharp lines of light are generated. For example, if the laser beam is infrared light, it will produce red light streaks.

As a result, a sharp streak of light is generated in the space on the optical display pattern according to the presence of a foreign substance floating in the air in the space on the optical display pattern even in a situation where the field of view is obstructed. This makes it possible for the observer to more clearly recognize the light display pattern.

Further, even in the case where snow, rain or snow water freezes on the road surface, a sharp streak of light is generated on the snow or ice on the display pattern within the range of the traveling path of the laser beam. The light display pattern can be clearly seen by the observer.

Further, since the laser beam used for the road surface display luminous plate illuminates the light diffusion edge, the observer can clearly see the light display pattern formed by the light diffusion edge even in darkness such as at night. Can be.

Although the illuminating plate for road surface display and the road surface display system of the present invention have been described above, the present invention is not limited to the above-described examples, and various improvements and modifications are made without departing from the gist of the present invention. Of course, it is good.

[0067]

As described above, according to the present invention,
Even in a situation where the field of view is obstructed, the light display pattern can be more clearly recognized by the observer.

Further, even when there is snow on the road surface, freezing of rain and snow water, etc., the light display pattern can be clearly recognized by the observer.

Further, even in darkness such as at night, the light display pattern can be clearly recognized by the observer.

Further, according to the present invention, since a laser is used, a complicated operation such as replacement of a light bulb or the like due to a break is eliminated, so that it is possible to provide a road surface display luminaire and a road surface display system which are easy to maintain. it can.

[Brief description of the drawings]

FIG. 1 is a schematic plan view showing an example of a road surface display luminaire according to a first embodiment of the present invention.

FIG. 2 is a schematic plan view showing another example of the road surface display luminaire according to the first embodiment of the present invention.

FIG. 3 is an enlarged schematic view of a portion A in FIG. 1 or FIG. 2;

FIG. 4 is an enlarged schematic diagram of a portion B in FIG. 1 or FIG. 2;

FIG. 5 is a schematic side view showing an example of a road surface display luminaire according to the first embodiment of the present invention.

FIG. 6 is an enlarged schematic sectional view of a portion C in FIG. 5;

FIG. 7 is an enlarged schematic sectional view of a portion D in FIG. 5;

FIG. 8 is a main part back view showing an example of a base constituting the road surface display luminaire according to the first embodiment of the present invention.

FIG. 9 is a schematic sectional view showing an example of a road surface display luminaire according to a second embodiment of the present invention.

FIG. 10 is a schematic plan view illustrating a configuration example of a crosswalk as an example of a road surface display system according to a third embodiment of the present invention.

FIG. 11 is an enlarged partial view for explaining in further detail a configuration example of a pedestrian crossing which is an example of the road surface display system according to the third aspect of the present invention.

FIG. 12 is a schematic diagram illustrating a laser oscillation device that supplies a laser beam to a road surface display plate according to the present invention.

FIG. 13 is a schematic plan view illustrating a configuration example of a right turn instruction pattern installed at the center of an intersection, which is an example of a road surface display system according to a third embodiment of the present invention.

FIG. 14 is a schematic plan view illustrating a configuration of various display patterns forming an intersection, which is an example of a road surface display system according to a third embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1, 1 'Base 2 Frame member 3 Light diffusion end 4 Optical fiber converging part 5 Connector 6 Optical fiber 6' Laser light source fiber 7 Support pin 8 Reinforcement plate 10, 10 'Road surface display bright plate 11 Road surface 12 Sidewalk 13, 13' Side frame 14 pole 15 laser oscillation device

 ──────────────────────────────────────────────────続 き Continued on the front page F-term (reference) 2D064 AA01 AA22 BA01 BA05 BA11 CA02 EA02 EA03 EB06 EB35 EB37 GA03 GA08 2H046 AA02 AA31 AA43 AA48 AA67 AB08 AD13 5C096 AA01 AA29 BA01 BB13 CA06 CA03 CB02 CD01 FA

Claims (8)

[Claims] 1. A base made of a hard elastic material fixedly installed on a roadbed, a frame member provided on an outer periphery of the base, and a light diffusion embedded in the base and having one end protruding from one surface thereof. A large number of optical fibers forming an end pattern and penetrating to the other surface side of the base; and an optical fiber converging portion installed on one of the side surface and the back surface of the base to converge and hold the other end of the large number of optical fibers And a connector installed in the optical fiber converging section and coupling a laser light source fiber connected to a laser oscillation device, wherein a laser introduced from the laser oscillation device is emitted from the light diffusion end through the optical fiber. By
A luminous plate for road surface display, wherein an optical display region is formed on one surface of the base by the pattern of the light diffusion edge. 2. A base made of a hard material fixedly installed on a roadbed, a plurality of optical fibers buried in the base and forming a light diffusion end pattern having one end protruding from one surface thereof, An optical fiber converging section installed on one of the side surface and the back surface of the base for converging and holding the other ends of the plurality of optical fibers; and a connector for connecting a laser light source fiber installed on the optical fiber converging section and connected to a laser oscillator. By emitting a laser introduced from the laser oscillation device from the light diffusion end through the optical fiber,
A luminous plate for road surface display, wherein an optical display region is formed on one surface of the base by the pattern of the light diffusion edge. 3. The illuminating plate according to claim 1, wherein the laser has a wavelength in an infrared region. 4. The illuminating plate for road surface display according to claim 1, wherein the base has a mark shape for indicating a traveling direction of the road surface. 5. The illuminating plate for road surface display according to claim 1, wherein said base has a rectangular plate shape forming a striped line at an intersection. 6. The illuminating plate for road surface display according to claim 1, wherein the base has a rectangular plate shape forming a vehicle stop line at an intersection. 7. The road surface display luminaire according to claim 1, wherein the base has a strip shape constituting a center separation line of the road surface. 8. A road surface display system comprising at least one of the road surface display luminaires according to claim 4, 5, 6, and 7.