JP4548101B2 - Road lighting equipment - Google Patents

Description

  The present invention relates to a road illuminator that is mounted on a railing such as a road and a tunnel or on a sound insulation wall and illuminates a road surface.

  Conventional road lighting devices include those installed on both sides of a road, for example, embedded in a railing or earthwork made of concrete, or installed on a railing or a sound insulation wall. Such a road lighting fixture is configured to prevent glare and the like from being generated in the driver, and to ensure the road surface brightness so that the driver can easily drive.

  In a conventional road lighting fixture, when it is installed embedded in a railing or earthwork section, the emitted light from the light source lamp is passed on the road surface via a light transmission portion provided in front of the fixture body. It was irradiated. Moreover, even when the road lighting fixture is installed on a railing or a sound insulation wall, the light transmitting portion of the road lighting fixture is provided on the front surface of the fixture main body, and the side surface is made of a non-translucent material. The emitted light from the light source lamp is irradiated on the road surface through a light transmission portion provided in front of the light source lamp (see, for example, Patent Document 1).

Further, for example, in a conventional road lighting system installed in a tunnel or the like, the light emitted from the road lighting fixture is controlled according to the time zone or the weather condition regardless of the traffic volume of the vehicle passing through the tunnel.
JP 2004-103270 A

  However, in the above-described conventional road lighting device, since the emitted light is irradiated onto the road surface through the light transmission portion provided in front of the device main body, the emitted light is between the irradiation regions between the installed road lighting devices. In some cases, a dark region that is not irradiated is formed. In order to eliminate the dark area, it may be possible to reduce the installation interval of the road lighting devices to be installed. However, there is a problem that the number of road lighting devices to be installed increases and the installation cost increases.

  Moreover, in the conventional road lighting fixture, since the emitted light is controlled according to the time zone and the weather condition, it may be turned on regardless of the presence of a vehicle or the like, which is preferable from the viewpoint of energy saving. It wasn't.

  Therefore, the present invention has been made to solve the above-mentioned problems, and even in the conventional installation intervals of road lighting equipment, it is possible to reduce the dark area where the emitted light on the road surface is not irradiated and improve the uniformity. The purpose is to propose a road lighting apparatus that can be made to be used.

The road lighting device according to claim 1, wherein the device main body has an opening on each of one side surface in the longitudinal direction and a vehicle traveling direction side surface that is one side surface adjacent to the one side surface; A socket installed on the side facing the opening formed on the side; a single light source lamp supported by the socket and disposed along the longitudinal direction of the instrument body; and housed in the instrument body A reflector that reflects light emitted from the light source lamp toward the opening; and a light transmission plate that liquid-tightly seals the opening and transmits light emitted from the light source lamp. It is characterized by.

  The road lighting device according to claim 2, wherein the one side surface is adjacent to the one side surface at a predetermined angle with respect to the one side surface in the longitudinal direction. is there.

  The road illuminator according to claim 3 is the road illuminator according to claim 1 or 2, wherein the light source lamp is a one-piece die lamp.

  According to the road lighting fixtures of the first to third aspects, even in the installation interval of the conventional road lighting fixtures, it is possible to reduce the dark area where the emitted light on the road surface is not irradiated and improve the uniformity.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following embodiments, parts having the same configuration are denoted by the same reference numerals, and redundant description is simplified or omitted.

(First embodiment)
A road lighting device 10 according to a first embodiment of the present invention will be described with reference to FIGS.

  FIG. 1 is a front view of a road lighting device 10 according to the first embodiment, and FIG. 2 is a cross-sectional view taken along line AA of FIG. FIG. 3 is a side view of one side of the road lighting apparatus 10 of the first embodiment.

  The road lighting device 10 shown in FIGS. 1 to 3 liquid-tightens the device main body 100, the opening on one side in the longitudinal direction of the device main body 100, and the opening on one side 112 adjacent to the one side. The light transmission plates 101 and 102 to be sealed, the socket 103 accommodated in the instrument main body 100, the light source lamp 104, the louver 105, the reflection plates 106a and 106b, and the lighting device 107 are mainly configured.

  The road lighting device 10 is installed so as to irradiate a rail or a side wall of a road, and is used as, for example, a railing lighting device. The fixture body 100 is fixed by screwing an attachment device such as a stay provided on the side wall of the road using an attachment hole of an attachment portion (not shown) provided in the appliance body 100. Done. Further, when fixing the instrument main body 100 to a road side wall or the like, in order to easily fix the instrument main body 100 so as to irradiate a predetermined area of the road surface, for example, a support that can be installed by changing the irradiation angle Legs may be provided on the instrument body 100.

  The instrument main body 100 can liquid-tightly seal a main body portion 100a having an opening on one side surface in the longitudinal direction and one side surface 112 adjacent to the one side surface, and an opening on one side surface in the longitudinal direction of the main body portion 100a. The lid portion 100b is provided on the main body portion 100a so as to be freely opened and closed by a hinge 108 and has an opening 109 in the longitudinal direction. Further, the opening 109 of the lid portion 100b is liquid-tightly sealed by a light transmission plate 101 that transmits light emitted from the light source lamp 104. The lid portion 100b is liquid-tightly sealed to the main body portion 100a by a screw 111 using a female screw 110 threaded on the lower portion of the main body portion 100a. The main body portion 100a and the lid portion 100b are formed of, for example, an aluminum extrusion material, and thus have a light but strong structure.

  As shown in FIG. 3, the opening provided on the side surface 112 of the main body 100 a is liquid-tightly sealed by a light transmission plate 102 that transmits light emitted from the light source lamp 104. The opening provided on the side surface 112 of the main body 100a may be provided on the side surface on the traveling direction side of the vehicle traveling on the side where the road lighting device 10 is installed, or on the side surface facing the traveling vehicle. It can also be provided, and the opening side surface is determined according to the application. At this time, the socket 103 that supports the light source lamp 104 is installed on the side surface facing the opening. Thus, the light emitted from the light source lamp 104 can be transmitted from the light transmitting plate 102 to the outside without being blocked by the socket 103 or the like. In addition, when providing an opening in the side surface of the traveling direction side of the traveling vehicle, glare or the like due to direct light incident on the eyes of the driver of the vehicle can be suppressed.

  The louver 105 is formed, for example, by welding a plurality of wings to a base or bending a part that becomes the wings, and appropriately illuminates a road surface such as a road and reduces glare to a vehicle driver or the like. To do. The louver 105 is installed in the instrument main body 100, and is supported by a predetermined support member (not shown) so that the facing angle between the louver 105 and the light transmitting plate 101 of the lid 100b can be changed.

  The reflection plates 106 a and 106 b are formed of a material having good reflection characteristics such as aluminum or an aluminum alloy, and are disposed in the longitudinal direction in the instrument main body 100. The reflection plate 106a is installed at a position facing the light transmission plate 101 via the louver 105. Further, in order to effectively use the light emitted from the light source lamp 104, the reflection plate 106b is a top plate of the main body 100a. It is installed on the inner wall.

  The light source lamp 104 is a single-piece lamp having a single base, and is fixed by a socket 103 installed on the side surface facing the opening provided on the side surface 112 of the main body 100a. The light source lamp 104 can be arbitrarily selected from various known light source lamps of a single-end mold.

  A waterproof connector (not shown) is provided on the back side or bottom of the main body 100a, and supplies power to the lighting device 107 and the light source lamp 104 while maintaining the waterproof structure of the appliance.

  Next, a comparison between the lighting state on the road where the above-described road lighting device 10 is installed and the lighting state on the road where the conventional road lighting device 50 is installed will be described with reference to FIGS. In addition, these road lighting fixtures are installed at predetermined intervals at a position of about 1 m in height on one side wall of the road.

  FIG. 4 shows an example of a lighting state on a road where the road lighting device 10 is installed. FIG. 5 shows an example of a lighting state on a road where a conventional road lighting device 50 is installed.

  In the illumination state on the road where the conventional road lighting apparatus shown in FIG. 5 is installed, the road surface is irradiated with the emitted light through the light transmitting portion provided on the front surface of the apparatus main body. A region to be the dark portion 51 where the emitted light is not irradiated is formed between the irradiation regions in FIG.

  In contrast, in the lighting state on the road where the road lighting device 10 of the present invention shown in FIG. 4 is installed, the light transmission plate 101 provided on one side surface in the longitudinal direction and one side surface 112 adjacent to the one side surface. Since the light emitted from the light source lamp 104 is transmitted through the light transmission plate 102 provided in the light transmission plate 102, a region that becomes a dark portion where the light is not irradiated is not formed between the irradiation regions between the installed road lighting fixtures, and the entire road surface Can be irradiated with light. Here, the light transmission plate 102 is a light source lamp in the traveling direction side of the vehicle passing through the side where the road lighting fixture 10 is installed, that is, in the traveling direction of the vehicle passing through the side where the road lighting fixture 10 is installed. It is provided on the side irradiated with light emitted from 104.

  As described above, according to the road lighting fixture 10 of the first embodiment, the light transmission plate 101 provided on one side surface in the longitudinal direction and the light transmission provided on one side surface 112 adjacent to the one side surface. The light emitted from the light source lamp 104 can be irradiated onto the road surface via the plate 102. For this reason, even in the installation interval of the conventional road lighting apparatus, light is irradiated on the entire road surface without forming a dark area where the emitted light is not irradiated between the irradiation areas between the installed road lighting apparatuses. Can do. Moreover, since the road lighting fixture 10 of 1st Embodiment can irradiate light to the whole road surface, a uniformity degree can improve and it can aim at the improvement of a driving environment.

(Second Embodiment)
A road lighting device 20 according to a second embodiment of the present invention will be described with reference to FIGS.

  FIG. 6 is a front view of the road lighting device 20 according to the second embodiment, and FIG. 7 is a cross-sectional view taken along the line BB of FIG. FIG. 8 is a side view of one side of the road lighting device 20 according to the second embodiment.

  The road lighting device 20 shown in FIGS. 6 to 8 fluid-tightens the device main body 200, the opening on one side surface in the longitudinal direction of the device main body 200 and the opening on one side surface 211 adjacent to the one side surface. The light transmitting plates 201 and 202 to be sealed, the socket 203 accommodated inside the instrument body 200, the light source lamp 204, the optical member 205, the reflecting mirror 206, the reflecting plate 207, and the lighting device 208 are mainly configured.

  This road lighting device 20 is installed so as to irradiate the road surface of a road at a position (for example, a height of about 0.8 m to 5 m) corresponding to the height of the driver's eye line on both sides of the road, for example. Used as a tracking lighting device. The fixture body 200 is fixed by screwing an attachment device such as a stay provided on the side wall of the road using an attachment hole of an attachment portion (not shown) provided in the appliance body 200. Done. Further, when fixing the instrument body 200 to a road side wall or the like, in order to easily fix the instrument body 200 so as to irradiate a predetermined area of the road surface, for example, a support that can be installed by changing the irradiation angle Legs may be provided on the instrument body 200.

  The instrument main body 200 can liquid-tightly seal the main body 200a having an opening on one side surface 211 in the longitudinal direction and one side surface 211 adjacent to the one side surface, and the opening on the one side surface in the longitudinal direction of the main body portion 200a. There is a lid 200b that is installed on the main body 200a so as to be opened and closed by a hinge 209 and has an opening in the longitudinal direction. The opening of the lid 200b is provided corresponding to the reflecting plate 207 installed in the instrument body 200, and is liquid-tightly sealed by the light transmitting plate 201 that transmits the light emitted from the light source lamp 204. Yes. A latch 210 is provided on the opposite side of the main body 200a where the hinge 209 is provided, and the lid 210b is held in a closed state by the latch 210. The main body portion 200a and the lid portion 200b are formed of, for example, an aluminum extrusion material, and thus have a light but strong structure.

  Further, as shown in FIG. 8, the opening provided in the side surface 211 of the main body 200a is liquid-tightly sealed by a light transmission plate 202 that transmits the light emitted from the light source lamp 204. The opening provided on the side surface 211 of the main body 200a may be provided on the side surface on the traveling direction side of the vehicle traveling on the side where the road lighting device 20 is installed, or on the side surface facing the traveling vehicle. The side surface to be opened is determined according to the application. At this time, the socket 203 that supports the light source lamp 204 is installed on the side surface facing the opening. Thereby, the light emitted from the light source lamp 204 can be transmitted to the outside from the light transmission plate 202 without being blocked by the socket 203 or the like.

  The light source lamp 204 is a one-piece lamp having a single base, and is fixed by a socket 203 installed on the side surface facing the opening provided on the side surface 211 of the main body 200a. The light source lamp 204 can be arbitrarily selected from known various light source lamps of a single-end mold, for example, a HID lamp (High Intensity Discharged Lamp) such as a mercury lamp, a metal halide lamp, or a high pressure sodium lamp, In-vehicle headlamps are used.

  The reflecting mirror 206 has a reflecting surface 206a formed as a parabolic rotator or an elliptic rotator. The reflection surface 206a uses the position of the light source lamp 204 as the first focal point, reflects the light from the light source lamp 204 at the first focal point, and condenses the light transmission hole of the slit plate 205a as the second focal point from the first focal point. It is formed in the shape to be made.

  The reflection plate 207 is formed of a material having good reflection characteristics such as aluminum or aluminum alloy, and reflects light that cannot be controlled by the reflection mirror 206 and the lens 205b to the road side. The reflecting plate 207 has a curved shape that slightly protrudes toward the light transmitting plate 201 so as to guide light to the light transmitting plate 201 and the light transmitting plate 202.

  The optical member 205 is mainly composed of a slit plate 205a, a lens 205b, and a mounting base member 205c. The light of the light source lamp 204 at the first focus is reflected by the reflecting mirror 206, and the light is transmitted through the slit plate 205a from the first focus. The mounting base member 205c is assembled so that the holes are focused as the second focal point, and the mounting base on which the reflecting mirror 206 and the slit plate 205a are disposed is configured. The lens 205b is a convex lens that is disposed closer to the light transmission plate 201 than the second focal point, the surface facing the second focal point is a flat surface, and the surface on the light transmission plate 201 side is a convex curved surface. The lens 205b focuses on the second focal point of the optical axis of the optical system, that is, the light transmission hole of the slit plate 205a, and refracts the light passing through the second focal point into parallel light parallel to the optical axis. The light is emitted to the light transmission plate 201 side.

  A waterproof connector (not shown) is provided on the back side or bottom of the main body 200a, and supplies power to the lighting device 208 and the light source lamp 204 while maintaining the waterproof structure of the appliance.

  As in the case of the road lighting fixture 10 of the first embodiment, the lighting state on the road where the road lighting fixture 20 of the second embodiment described above is installed is light transmission provided on one side surface in the longitudinal direction. Since the emitted light from the light source lamp 204 is transmitted through the light transmitting plate 202 provided on the plate 201 and one side surface 211 adjacent to one side surface 211 thereof, the emitted light is transmitted between the irradiation areas between the installed road lighting fixtures. A dark area that is not irradiated is not formed, and the entire road surface can be irradiated with light.

  As described above, according to the road lighting device 20 of the second embodiment, the light transmission plate 201 provided on one side surface in the longitudinal direction and the light transmission provided on one side surface 211 adjacent to the one side surface. The light emitted from the light source lamp 204 can be irradiated onto the road surface via the plate 202. For this reason, even in the installation interval of the conventional road lighting apparatus, light is irradiated on the entire road surface without forming a dark area where the emitted light is not irradiated between the irradiation areas between the installed road lighting apparatuses. Can do. Moreover, since the road lighting fixture 20 of 2nd Embodiment can irradiate light to the whole road surface, a uniformity degree can improve and it can aim at the improvement of a driving environment.

(Third embodiment)
A road lighting device 30 according to a third embodiment of the present invention will be described with reference to FIGS. In addition, the internal structure, installation location, etc. of the apparatus main body 300 of the road lighting apparatus 30 of 3rd Embodiment are the road lighting apparatus 10 of 1st Embodiment mentioned above, or the road lighting apparatus of 2nd Embodiment. 20, the feature of the shape of the instrument body 300 will be described here.

  FIG. 9 is a perspective view of the appliance main body 300 in the road lighting fixture 30 of the third embodiment, and FIG. 10 shows a top view of the appliance main body 300 in the road lighting fixture 30 of the third embodiment.

  As shown in FIG. 9, the instrument main body 300 includes a main body portion 300a having an opening on one side surface in the longitudinal direction and an adjacent side surface 301 having a predetermined angle with respect to the one side surface in the longitudinal direction. The opening on one side of the main body 300a in the longitudinal direction can be liquid-tightly sealed. The main body 300a is configured to be openable and closable by a hinge 302 and includes a lid 300b having an opening in the longitudinal direction. .

  Here, the angle (θ) with respect to one side surface in the longitudinal direction of the side surface 301 shown in FIG. 10 is 30 to 90 degrees, and when the angle (θ) is 90, the road illumination according to the first embodiment described above. This is a side surface formed perpendicular to one side surface in the longitudinal direction, as shown by the device 10 or the road lighting device 20 of the second embodiment. Further, the length (L) of the portion where the side surface 301 is formed is preferably 1/3 or less of the length of the instrument body 300 in the longitudinal direction. For example, when a fluorescent lamp is used, It is preferable that the length is about 1/3 of the length. In addition, when an HID lamp, a vehicle-mounted headlamp, or the like is used, the length is preferably set to 1/3 or less of the length in the longitudinal direction of the instrument main body 300 regardless of the length of the lamp.

  The opening of the lid portion 300b is provided corresponding to a reflecting plate installed in the instrument main body 300, and is liquid-tightly sealed by a light transmitting plate 303 that transmits light emitted from the light source lamp. Further, the lid part 300b is sealed in a liquid-tight manner to the main body part 300a via a packing or the like by means of a screw 304 using a female screw threaded on the lower part of the main body part 300a. The method of fixing the lid portion 300b to the main body portion 300a is not limited to this, and a latch is provided on the opposite side of the main body portion 300a where the hinge 302 is provided, and the lid portion 300b is closed by this latch. You may hold in the state. The main body portion 300a and the lid portion 300b are formed of, for example, an aluminum extrusion material, and thus have a light but strong structure.

  Moreover, the opening provided in the side surface 301 of the main body 300a is liquid-tightly sealed by a light transmission plate 305 that transmits light emitted from the light source lamp. In addition, the opening provided in the side surface 301 of the main body 300a may be provided on the side surface on the traveling direction side of the vehicle traveling on the side where the road lighting device 30 is installed, or the side surface facing the traveling vehicle. The side surface to be opened is determined according to the application. At this time, the socket for supporting the light source lamp is installed on the side surface facing the opening. Thereby, the light emitted from the light source lamp can be transmitted to the outside from the light transmission plate without being blocked by the socket or the like.

  The lighting state on the road where the road lighting fixture 30 of the third embodiment described above is installed is light provided on one side surface in the longitudinal direction, as in the case of the road lighting fixture of the first and second embodiments. Since the light emitted from the light source lamp passes through the light transmission plate 305 provided on the other side surface formed so as to intersect with one end side of the transmission plate 303 and one side surface thereof, between the installed road lighting fixtures A region that becomes a dark portion where no emitted light is irradiated is not formed between the irradiation regions, and the entire road surface can be irradiated with light.

  As described above, according to the road lighting device 30 of the third embodiment, the light transmission plate 303 provided on one side surface in the longitudinal direction and the other formed so as to cross one end side of the one side surface. The light emitted from the light source lamp can be irradiated onto the road surface through the light transmission plate 305 provided on the side surface of the light source. For this reason, even in the installation interval of the conventional road lighting apparatus, light is irradiated on the entire road surface without forming a dark area where the emitted light is not irradiated between the irradiation areas between the installed road lighting apparatuses. Can do. Moreover, since the road lighting fixture 30 of 3rd Embodiment can irradiate light to the whole road surface, a uniformity degree can improve and it can aim at the improvement of a driving environment.

  Furthermore, since the angle (θ) with respect to one side surface in the longitudinal direction of the side surface 301 can be arbitrarily set depending on the state of the road where the road lighting device 30 is installed, an optimal irradiation design can be performed, and the degree of uniformity can be further increased. It becomes possible to improve.

(Fourth embodiment)
A road lighting system 400 according to a fourth embodiment of the present invention will be described with reference to FIGS.

  FIG. 11 is a diagram showing an outline of an example of a road lighting system 400 in which the road lighting fixture of the second embodiment (here, the road lighting fixture 401) is installed in a tunnel. A cross section within the tunnel 404 when cut is shown. FIG. 12 is a flowchart illustrating the operation of the road lighting system 400 according to the fourth embodiment. In addition, the road lighting fixture of the above-mentioned 1st or 3rd embodiment can also be installed in a road lighting fixture.

  As shown in FIG. 11, the road lighting fixture 401 is installed on the side wall in the tunnel 404 at a predetermined height from the road surface 405 at a predetermined height. In addition, each road lighting device 401 is electrically connected to the control means 402. A traffic volume sensor 403 is installed near the entrance of the tunnel 404, and this traffic volume sensor 403 is also electrically connected to the control means 402.

  The traffic volume sensor 403 detects a vehicle that has passed through and outputs the information to the control means 402. The traffic sensor 403 may be installed in the vicinity of the entrance of the tunnel 404 or in the tunnel 404 to detect the vehicle. Instead of providing the traffic sensor 403, for example, a traffic counter owned by a road corporation or the like May be input to the control means 402 to detect the traffic volume.

  The control means 402 is mainly composed of an arithmetic unit (CPU), a read-only memory (ROM), a random access memory (RAM), a data management memory, and the like. The CPU stores programs and data stored in the ROM and RAM. Used to execute various arithmetic processes. The data management memory stores information detected by the traffic volume sensor 403. Further, the control unit 402 controls the power supplied to the light source lamp of the road lighting fixture 401 based on information from the traffic sensor 403. For example, when the traffic volume is “0”, the control unit 402 adjusts the power supplied to the light source lamp to the minimum, minimizes the lighting of the light source lamp, or supplies the power to the light source lamp. Is controlled to stop the lighting of the light source lamp. On the other hand, when the traffic sensor 403 detects a passing vehicle in the power supply state described above, the control unit 402 adjusts the power supplied to the light source lamp according to the traffic volume, and turns on the light source lamp. Take control.

  Further, in order to adjust the power supplied to the light source lamp according to the traffic volume, for example, the traffic volume is divided into a plurality of classes in the RAM or the like of the control means 402, and the power supplied to the light source lamp is divided for each division. The determined information may be stored, and power may be supplied to the light source lamp based on the information and information from the traffic volume sensor 403.

  Here, when using, for example, an HID lamp or an in-vehicle headlamp as the light source lamp, a high voltage is applied when these light source lamps are turned on, and if the light source lamp is repeatedly turned on and off, the life of the light source lamp is shortened. Even when the traffic volume is “0”, it is preferable to minimize the lighting of the light source lamp by adjusting the power supplied to the light source lamp to the minimum without turning off the light.

  Next, the operation of the road lighting system 400 will be described with reference to FIG.

  First, the traffic volume sensor 403 detects a vehicle passing through the road and outputs it to the control means 402 (step S410).

  The control unit 402 calculates the traffic volume based on the information from the traffic volume sensor 403, and adjusts the power supplied to the light source lamp of the road lighting fixture 401 to the power corresponding to the traffic volume (step S411). .

  According to the road lighting system 400 described above, the power of the light source lamp of the road lighting fixture 401 can be adjusted in accordance with the traffic volume while having the effect of the road lighting fixture of the present invention described above. Therefore, useless power consumption can be suppressed and energy saving can be achieved. In particular, energy can be effectively saved by introducing the road lighting system 400 on a road with a small amount of traffic.

  In addition, the road illumination by the road lighting fixture 401 is darker than the road illumination by the control lighting fixture that has been conventionally attached, but the object falling on the road is easy to see. This makes it difficult for the driver of the vehicle to increase the speed, but makes it easier to see an object falling on the road surface, which is preferable from the viewpoint of traffic safety. Therefore, for example, the number of reference lighting fixtures that have been conventionally attached is reduced, and road lighting fixtures 401 are added instead, and the irradiation light from road lighting fixtures 401 is controlled by road lighting system 400 described above. Thus, traffic safety can be achieved while saving energy.

  In the above-described road lighting system 400, an example of a road lighting system in a tunnel has been shown. However, the road lighting system 400 is not limited to being installed in the tunnel, but may be installed on roads other than the tunnel 404. it can.

The front view of the road lighting fixture of 1st Embodiment. AA sectional drawing of FIG. The side view of one side of the road lighting fixture of 1st Embodiment. The figure which shows an example of the lighting state in the road which installed the road lighting fixture. The figure which shows an example of the lighting state in the road which installed the conventional road lighting fixture. The front view of the road lighting fixture of 2nd Embodiment. BB sectional drawing of FIG. The one side view of the road lighting fixture of 2nd Embodiment. The perspective view of the fixture main body in the road lighting fixture of 3rd Embodiment. The upper side figure of the fixture main body in the road lighting fixture of 3rd Embodiment. The figure which shows an outline | summary of an example of the road lighting system of 4th Embodiment. The flowchart which shows operation | movement of the road lighting system of 4th Embodiment.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... Road lighting fixture, 100 ... Appliance main body, 100a ... Main body part, 100b ... Lid part, 101, 102 ... Light transmission plate, 103 ... Socket, 104 ... Light source lamp, 105 ... Louver, 106a, 106b ... Reflector plate, 107 ... lighting device, 108 ... hinge, 109 ... opening, 110 ... female screw, 111 ... screw.

Claims (3)

An instrument body having an opening on each of one side surface in the longitudinal direction and one side surface adjacent to the one side surface in the vehicle traveling direction ;
A socket installed on the side facing the opening formed on the one side in the instrument body;
A single light source lamp supported by the socket and disposed along the longitudinal direction of the instrument body;
A reflector that is housed in the instrument body and reflects light emitted from the light source lamp toward the opening;
A light-transmitting plate that seals the opening in a liquid-tight manner and transmits light emitted from the light source lamp;
A road lighting apparatus comprising:   The road lighting device according to claim 1, wherein the one side surface is adjacent to the one side surface in the longitudinal direction with a predetermined angle.   The road light fixture according to claim 1 or 2, wherein the light source lamp is a single-end mold lamp.

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