JP6656680B2 - Lighting device - Google Patents

Description

  The present invention relates to a lighting device for lighting a light emitter using electric power of a storage battery, and further relates to a lighting device further including a light storage material that stores light by lighting the light emitter.

  BACKGROUND ART Conventionally, there is known a lighting device in which an LED lamp is installed inside an external case, and power is supplied to the LED lamp from a solar panel (see Patent Document 1). The external case is made of a luminous plastic, and luminesces with sunlight during the day and luminesces with excitation light of an LED lamp at night. Since light can be stored even at night, attenuation of light emission by the light-storing plastic can be suppressed.

JP-A-2017-32959

  In a conventional lighting device, only one solar panel is mounted on the upper surface of the device. With such a solar panel, a sufficient amount of power cannot be obtained, and it is difficult to turn on the LED lamp during the night. Further, when the solar panel is installed at an angle close to the horizontal in accordance with the incident angle of sunlight, there is also a problem that snow accumulates on the solar panel in a snowfall area, and the power storage efficiency is reduced.

  An object of the present invention is to provide a lighting device capable of lighting a light emitting body even in a snowfall area and at night.

The present invention provides an apparatus main body, a solar panel disposed on an outer surface of the apparatus main body, a storage battery for storing electric energy supplied from the solar panel, a first illuminant that emits light by power of the storage battery, A control unit that controls charging / discharging of a storage battery and lighting of the first light emitting body, wherein the solar panel is continuously or intermittently arranged in an annular shape on an outer peripheral side of the device main body. Wherein the storage battery, the first illuminant, and the control unit are located inside the device main body, and the device main body includes a tubular portion and a light transmitting portion located at one end of the tubular portion and having a light transmitting property The light transmitting part is formed of a material containing a light storage material, and can store light by sunlight or light emission of the first light emitter, and the light storage material stores light when the first light emitter is turned on. When the entire light transmitting portion emits light by transmitting at least a part of the irradiation light emitted from the first light emitting member through the light transmitting portion and the first light emitting member is turned off, the light storage material When the light-emitting portion emits light , the control section controls the first light-emitting body to alternately repeat a lighting state and a non-lighting state when a predetermined lighting condition is satisfied. The brightness of the first light emitting body is gradually increased, and the brightness is controlled so that the brightness suddenly becomes zero from a peak state . The term "annular" includes not only a case where a continuous ring is formed in the circumferential direction, but also a case where a whole ring is formed even when there is a discontinuity in the circumferential direction, that is, a case where the ring is intermittently formed.

In the present invention, the color of the light emitted from the light transmitting portion may be different between when the first light emitter is turned on and when the first light emitter is turned off .

When the first light emitting body of the present invention is turned on, a color tone in which the excitation light of the first light emitting body and the dye of the light transmitting portion match is visually recognized, and when the first light emitting body is turned off, the phosphorescent material is used. May be visually recognized .

  According to the lighting device of the present invention, since the solar panel is arranged on the outer peripheral side of the device main body, it is possible to prevent snow from accumulating as compared with a case where the solar panel is made substantially horizontal. In addition, by arranging the solar panels in a ring shape, power can be efficiently stored regardless of the position of the sun. In addition, during snowfall, not only the solar panel facing the sun can store electricity, but the solar panel located on the opposite side can use solar energy reflected from snow and clouds. Therefore, power can be stored more efficiently.

1 is a side view of a lighting device according to a first embodiment of the present invention. FIG. 2 is a cross-sectional view taken along line II-II of FIG. Block diagram showing the hardware configuration of the control unit Flow chart showing the processing flow of the microcomputer Diagram for explaining lighting process The figure explaining the connection state of the solar panel which concerns on 2nd Embodiment. FIG. 9 is a diagram illustrating features of the third embodiment, and is a schematic diagram of a substrate. It is a figure explaining the characteristic of a 4th embodiment, and is a sectional view in the state where a lighting device was attached to a snow pole. The perspective view of the cylinder part concerning a 4th embodiment. Perspective view of the second adapter

<First embodiment>
A first embodiment of the present invention will be described with reference to FIGS.
Referring to FIG. 1 and FIG. 2, the lighting device 1 in this embodiment can be attached to, for example, a pole installed on the side of a road, more specifically, a snow pole P. The snow poles P are installed at regular intervals along the shoulder of the road, and are used as marks when the outside of the road becomes invisible due to snow in particular.

<Lighting device 1>
The lighting device 1 includes a device main body 2 and a solar panel 3 disposed on an outer surface of the device main body 2.

<Device main body 2>
The apparatus main body 2 has an axial direction Y and an intersecting direction X intersecting with the axial direction Y. The device main body 2 includes a cylindrical portion 21 and a light transmitting portion 22 adjacent in the axial direction Y. The light transmitting portion 22 is located at one end of the cylindrical portion 21 and has light transmittance. In this embodiment, the light transmitting portion 22 has a spherical surface and is in a dome shape. Such a translucent portion 22 is formed of a material containing a light storage material, and can store light by sunlight or lighting of a first light emitting body described later. The light transmitting portion 22 can be formed of, for example, a light transmitting hard plastic mixed with a phosphorescent material powder.

  The inside of the cylindrical portion 21 forms a hollow extending in the axial direction Y, and the snow pole P can be inserted into the hollow portion. The lighting device 1 can be attached to the snow pole P only by inserting the snow pole P into the cylindrical portion 21. Therefore, even if the lighting device 1 is installed on a plurality of existing snow poles P installed on the road shoulder, the installation can be performed easily and in a short time. Note that a fixing means such as a screw may be separately used to fix the lighting device 1 and the snow pole P.

<Solar panel 3>
The solar panel 3 is located on the outer peripheral side of the cylindrical portion 21, and a plurality of solar panels 3 are arranged intermittently in the circumferential direction to have an annular shape. In this embodiment, four plate-shaped solar panels 3 are annularly arranged. Therefore, the external appearance of the cylindrical portion 21 is a substantially quadrangular prism. The number of solar panels 3 in the circumferential direction may be increased or decreased, or a plurality of solar panels 3 may be arranged in the vertical direction, depending on the amount of power generated by the solar panels 3 and the like. In this embodiment, the solar panels 3 are intermittently arranged in the circumferential direction. However, the solar panels 3 may be continuously arranged in the circumferential direction by contacting the adjacent solar panels 3. Further, one curved solar panel 3 may be used and arranged so as to be wound in the circumferential direction.

<Inside of the device body 2>
Referring particularly to FIG. 2, a storage battery 4 for storing electric energy supplied from a solar panel 3, a first luminous body 5 that emits light by the power of the storage battery 4, and a charge of the storage battery 4 are provided inside the apparatus main body 2. A control unit 6 for performing discharge control and lighting control of the first light emitter 5. As the storage battery 4, for example, a nickel-metal hydride rechargeable battery can be used. The control section 6 includes a board 61 extending in the cross direction X with electronic components mounted thereon, and the first light emitter 5 is also attached to the board 61. The substrate 61 has one surface 62 facing the cylinder portion 21 side and the other surface 63 facing the light transmitting portion 22 side, and the light emitting portion 51 of the first light emitting body 5 is exposed from the other surface 63. To be installed. As the first light emitter 5, for example, a blue LED that can be irradiated at a wide angle can be used. By irradiating at a wide angle, it is possible to irradiate the entire light transmitting portion 22 almost uniformly.

  On one surface 62 side of the substrate 61, a mounting plate 7 extending in the cross direction X is further provided. The mounting plate 7 has one surface 71 facing the substrate 61 and the other surface 72 located on the opposite side. The storage battery 4 is fixed to the one surface 71 and the storage battery 4 is mounted on the other surface. The switch 8 for energizing the control unit 4 and the control unit 6 is fixed. In this embodiment, when the lighting device 1 is inserted into the snow pole P, the switch 8 is pressed by the upper end of the snow pole P, and the storage battery 4 and the control unit 6 are energized. Therefore, while the lighting device 1 is installed on the snow pole P, the switch 8 is depressed, and the power supply between the storage battery 4 and the control unit 6 is maintained. In this embodiment, the switch 8 is depressed when installed on the lighting device 1 on the snow pole P. However, the switch may be turned on or off manually or electrically.

  When the first light-emitting body 5 is turned on, the lighting device 1 transmits light by storing light in the light-storing material and transmitting at least a part of the irradiation light emitted from the first light-emitting body 5 through the light-transmitting portion 22. The entire part 22 emits light. When the first light emitter 5 is turned off, the entire light transmitting portion 22 emits light due to light emission of the light storage material. In this embodiment, since a blue LED is used as the first light-emitting body 5, the light-transmitting portion 22 exhibits blue when the first light-emitting body 5 is turned on. When the first light-emitting body 5 is turned off, the color of the light-transmitting portion 22 is yellow-green due to light emission of the light storage material included in the light-transmitting portion 22. Therefore, when the first light emitting body 5 is turned on and off, the light transmitting portion 22 emits light alternately in blue and yellow-green. In this embodiment, it is preferable that the translucent part 22 has 5 to 15% by weight of a light storage material mixed in polycarbonate. If the content of the luminous material is less than 5% by weight, most of the excitation light is transmitted, and the luminous intensity is insufficient, so that sufficient light emission cannot be secured when the first luminous body 5 is turned off. is there. If the amount is more than 15% by weight, the light of the first light emitter does not pass through the light transmitting part 22, and the light transmitting part 22 remains dark.

<Control unit 6>
Referring to FIG. 3, the control unit 6 includes a microcomputer 64 that has a built-in timer and controls other electronic components, an AD converter 65 that converts an analog voltage of the solar panel 3 and the storage battery 4 into digital, and a microcomputer 64. And a luminous body driving circuit 66 for illuminating the first luminous body 5 based on a lighting instruction from the light emitting element. The AD converter 65 may be built in the microcomputer 64. Power is supplied to each electronic component of the control unit 6 from the storage battery 4 via a step-up or step-down power supply circuit (not shown). The solar panel 3 and the storage battery 4 are connected via a backflow prevention diode (not shown), and are charged in the daytime when the photovoltaic power of the solar panel 3 exceeds the voltage of the storage battery 4.

  The microcomputer 64 controls lighting of the first light emitter 5 by PWM (Pulse Width Modulation) control. The PWM control is a control method for turning on and off the first light emitting body 5 by a pulse signal of a constant frequency. The brightness of the first light emitting body 5 is changed by changing a ratio of a pulse width to a cycle, that is, a duty ratio. Can be adjusted. The microcomputer 64 monitors the voltage of the storage battery 4 obtained via the AD converter 65, and prevents overcharge and overdischarge of the storage battery 4.

  As shown in FIG. 4, when the lighting device 1 is inserted into the snow pole P, the microcomputer 64 energizes the storage battery by pressing the switch 8, and starts up (step S1). The microcomputer 64 outputs a lighting instruction to blink the first light emitting body 5 a predetermined number of times to the light emitting body drive circuit 66 for confirmation of activation (step S2). For example, the microcomputer 64 outputs a lighting command to the light emitting element driving circuit 66 that alternately repeats lighting and extinguishing of the first light emitting element 3 three times. That is, the microcomputer 64 blinks the first light emitter 5 three times. Thereby, the worker who installs the lighting device 1 can confirm that the lighting device 1 has been normally installed.

  The microcomputer 64 repeats the determination processing according to the determination conditions of steps S3, S5, and S6. Instead of the microcomputer 64 performing the determination processing in steps S3, S5, and S6, similar determination processing may be realized by interrupt control based on a voltage value obtained from a timer or the AD converter 65. Does not matter.

  When the predetermined discharge condition is satisfied, that is, when the voltage of the storage battery 4 is equal to or higher than the charging upper limit voltage (Yes in step S3), the microcomputer 64 performs a discharge process for discharging the power of the storage battery 4 (step S4). . The charging upper limit voltage means an upper limit voltage for performing charging within a range where the storage battery is not damaged, and is a predetermined value from the viewpoint of preventing a significant deterioration of the life of the storage battery 4. In the present embodiment, the microcomputer 64 outputs a command to continuously light the first light emitter 5 to the light emitter driving circuit 66 as a discharge process. As a result, the electric power of the storage battery 4 is discharged, overcharging can be prevented, and light emission of the light storage material can be performed by turning on the first light emitter 5. It should be noted that the microcomputer 64 may simply stop charging in place of the discharging process if only preventing overcharging.

  The microcomputer 64 determines that the predetermined lighting condition is satisfied, that is, the voltage of the storage battery 4 is higher than the lower discharge limit voltage and lower than the upper limit charge voltage (No in step S5), and the start of the solar panel 3 is started. If the power is equal to or lower than the set voltage (Yes in step S6), it is regarded as a poor visibility state at night or the like, and a lighting process for turning on the first light emitter 5 is performed to ensure the visibility of the driver (step S7). In the present embodiment, the microcomputer 64 outputs a lighting instruction of the first light emitting body 5 by PWM control to the light emitting body drive circuit 66 as a lighting processing. The discharge lower-limit voltage means a lower-limit voltage for performing discharge within a range where the storage battery is not damaged, and is determined in advance from the viewpoint of preventing remarkable deterioration of the life of the storage battery 4 and securing the minimum operation guarantee voltage of the microcomputer 64. Value.

  In the present embodiment, even in the daytime, when the electromotive force of the solar panel 3 is equal to or lower than the set voltage, the surrounding area sunlight is weak, so that the first light emitting body 5 is turned on. In particular, in a weather condition such as a snowstorm or the like, the visibility of the driver is significantly improved by turning on the first light emitter 5 even in the daytime. On the other hand, when the voltage of the storage battery 4 is equal to or lower than the lower discharge limit voltage (Yes in step S5), the lighting process is not performed to prevent overdischarge of the storage battery 4. When the electromotive force of the solar panel 3 is larger than the set voltage (No in step S6), the surrounding sunlight is strong, and the visibility of the driver is not a problem. And the lighting process is not performed.

  When the voltage of the storage battery 4 is lower than the charging upper limit voltage (No in step S3), that is, as long as the battery is not overcharged, the microcomputer 64 turns off the power saving (step S8). When the power saving is turned off, all power supplies except the timer are turned off to save power. The microcomputer 64 repeats the processing from step S3 by restarting by the timer.

  As shown in FIG. 5A or FIG. 5B, the microcomputer 64 controls the first light emitter 5 to alternately repeat the lighting state and the extinguishing state during the lighting process. Here, the lighting state includes not only a state in which the first light emitting body 5 is continuously lit, but also a state in which the apparent brightness is maintained by repeating on and off by the PWM control. On the other hand, the light-off state is a state in which the first light emitter 5 is continuously turned off. As described above, in the lighting process at night or the like, the first light-emitting body 5 is turned on to store the light-transmitting portion 22, and then the first light-emitting body 5 is turned off. The power consumption of the storage battery 4 can be reduced, and power outage at night can be prevented.

  For example, as shown in FIG. 5A, the microcomputer 64 uses the PWM control to gradually increase the brightness of the first light emitting body 5 in the first half of the lighting state, and to increase the first light emission in the second half of the lighting state. A lighting command of a lighting pattern for gradually reducing the brightness of the body 5 may be output to the light emitter driving circuit 66. By controlling the brightness of the first light emitting body 5 in this manner, a gradual change in the light emission intensity of the light transmitting section 22 can be realized, which is easy on the eyes of a driver or the like. In addition, an afterimage of light emission of the light transmitting unit 22 hardly remains, so that the driving safety is not reduced.

  In addition, for example, as shown in FIG. 5B, the microcomputer 64 gradually increases the brightness of the first light emitting body 5 in the lighting state by PWM control, and the brightness sharply changes from the peak state. A lighting instruction of a lighting pattern that becomes zero may be output to the light emitting body driving circuit 66. In this case, even if the irradiation light emitted from the first light emitting body 5 suddenly becomes zero, light emission of the light storage material remains, so that the light transmitting portion 22 as a whole looks gradually darker to the driver's eyes. . Therefore, as in FIG. 5A, a gradual change in the light emission intensity of the light transmitting portion 22 can be realized.

  Further, as shown in FIG. 5C, the microcomputer 64 changes the time interval of the light-off state according to the voltage of the storage battery 4. In FIG. 5C, Va is a discharge lower limit voltage, Vc is a charge upper limit voltage, and Va <Vb <Vc and Ta <Tb. When the voltage of the storage battery 4 is in the range of Vb to Vc, the microcomputer 64 sets the time interval in the light-off state to Ta. When the voltage of the storage battery 4 is Va to Vb, the microcomputer 64 linearly changes the time interval of the light-off state between Tb and Ta. That is, when the remaining amount of the storage battery 4 becomes small, the light-off time is gradually lengthened, and the power consumption is reduced, thereby preventing sudden operation stop at night. When the voltage of the storage battery 4 is equal to or lower than Va, the microcomputer 64 turns off the power to prevent overdischarge, and when the voltage of the storage battery 4 is equal to or higher than Vc, the microcomputer 64 prevents damage to the storage battery 4 due to overcharging. Then, the discharge processing for continuously lighting the first light emitting body 5 or the stop of the power storage are performed.

  According to the lighting device 1 as described above, since the solar panel 3 is installed so as to be substantially parallel to the axial direction Y, it is possible to prevent snow on the solar panel 3 and to prevent the solar panel 3 from being covered with snow. Garbage and the like attached to the surface can be washed away with rainwater. Thus, a decrease in the amount of power generation can be suppressed. Further, while the first light emitting body 5 is lit, the light of the first light emitting body 5 is visually recognized through the light transmitting part 22, so that even if the light emission by the light storage material is weak, the driver or the like does not exist. It can be well known. While the first light emitting body 5 is turned off, the entire light transmitting portion 22 emits light due to the light emission of the light storage material, and the driver or the like can visually recognize the light. Thus, the translucent portion 22 is visible both when the first light emitter 5 is turned on and when it is turned off, and safety at night can be ensured.

  Since the solar panel 3 is provided annularly around the cylindrical portion 21, power can be efficiently generated even when the position of the sun changes. In addition, when snow is covered, power can be generated by sunlight reflected on snow on the side opposite to the position of the sun, and in cloudy weather, power can be generated by sunlight reflected on clouds. Therefore, power generation efficiency can be improved.

  When the first light-emitting body 5 is turned on, a color tone in which the excitation light of the first light-emitting body 5 and the dye of the light transmitting portion 22 match is visually recognized. Is visually recognized. If there is a difference in color tone between the two, these different color tones appear alternately, so that it is possible to stimulate the visual sense of the driver or the like, and to prevent falling asleep or the like.

  In this embodiment, a blue LED having a wavelength of 405 to 415 nm is used as the first light emitter 5, but the present invention is not limited to this. However, the first light emitter 5 needs to be capable of sufficiently photoexciting the light storage material of the light transmitting part 22. In order to enhance the visibility of the color of light emitted when the first light emitting body 5 is turned on and the color of light emitted by the light storage material when the first light emitting body 5 is turned off, it is assumed that these light emitting colors are different. Is preferred. Further, since the blue LED used in this embodiment does not include ultraviolet light having a wavelength of 10 to 400 nm, the influence of the ultraviolet light can be eliminated.

  In this embodiment, since one lighting device 1 is installed for one snow pole P, even if one of the plurality of lighting devices 1 has a problem, the other lighting devices 1 may be used. The normal operation of the device 1 does not impair the original function of indicating the road shoulder.

  The control unit 6 may include a GPS receiver that receives a signal from a GPS (Global Positioning System) satellite. When a GPS receiver is provided, the microcomputer 64 periodically adjusts the time of a timer based on a timing pulse signal output from the GPS receiver. Thus, the timers of the plurality of lighting devices 1 installed at distant locations can be synchronized, so that the plurality of lighting devices 1 can be simultaneously turned on and off. For adjusting the time of the timer, a radio clock may be used instead of the GPS receiver. However, a GPS receiver is more preferable than a radio clock having an area where radio waves cannot be received.

  In this embodiment, the lighting device 1 is attached to the snow pole P. However, the present invention is not limited to this, and the lighting device 1 can be attached to various outdoor structures. Further, the lighting device 1 can be installed alone.

<Second embodiment>
The second embodiment will be described with reference to FIG. The second embodiment is characterized by the connection form of the solar panel 3, and is otherwise the same as the first embodiment.

  In a snowy area, if snow adheres to the surface of the solar panel 3 in winter, the solar panel 3 cannot generate power. Therefore, in the second embodiment, a mechanism for automatically removing snow adhering to the surface of the solar panel 3 is adopted.

  As described in the first embodiment, a plurality of solar panels 3 are continuously or intermittently annularly arranged on the outer peripheral side of the apparatus main body 2. Therefore, the amount of reflected light due to sunlight or snow applied to each solar panel 3 differs, and a difference occurs in photovoltaic power. When a difference occurs in the photovoltaic power, current flows from the high-voltage solar panel 3 to the low-voltage solar panel 3. Then, the low-voltage solar panel 3 becomes a resistor and generates heat, thereby lowering the power generation efficiency or damaging the solar panel 3. In order to avoid this, in general, when the amount of sunlight or the like irradiated for each solar panel 3 is different, the solar panel 3 is controlled so that the current does not flow from the high-voltage solar panel 3 to the low-voltage solar panel 3. The backflow prevention diodes are connected in series with each other, and the solar panels 3 are connected in parallel via the backflow prevention diodes.

  In the second embodiment of the present invention, as shown in FIG. 6, a plurality of solar panels 3a to 3d are configured to be connected in parallel so that their output currents can flow backward, as shown in FIG. That is, the solar panels 3a to 3d are connected to each other in parallel without passing through the backflow prevention diode. As a result, the current output from the other solar panel 3 flows back to the solar panel 3 to which snow is attached. Due to this reverse current, the solar panel 3 to which snow adheres generates heat, and the snow in a portion in contact with the surface of the solar panel 3 is melted. Since the apparatus main body 2 is installed so that the surface of the solar panel 3 is substantially parallel to the vertical direction, snow that has partially melted and has reduced adhesive force slides down the surface of the solar panel 3 due to gravity. Thereby, snow adhering to the surface of the solar panel 3 can be automatically removed. When the voltage of the solar panel 3 from which the snow has been removed becomes almost equal to that of the other solar panels 3, the output current flows to the storage battery 4 and no reverse current occurs.

  The output sides of the four solar panels 3a to 3d are bundled as one output terminal, and a backflow prevention diode 31 is connected in series. The backflow prevention diode 31 is for preventing a reverse current from the storage battery 4 to the solar panels 3a to 3d. Further, since the solar panel 3 used in the lighting device 1 has a small output current, the solar panel 3 is not damaged even if the current flows backward.

<Third embodiment>
FIG. 7 shows a third embodiment, in which a tilt switch 9 and a white LED as a second luminous body 10 that emits light by the power of the storage battery 4 are further provided on a substrate 61 of the control unit 6. Other configurations are the same as those of the first embodiment. In this embodiment, the tilt switch 9 detects the inclination of the lighting device 1 when the lighting device 1 is detached from the snow pole P and is used by tilting the lighting device 1. Turn on 10.

  The tilt switch 9 and the second light emitter 10 are attached to the other surface 63 of the substrate 61. The second light emitter 10 is attached so as to be adjacent to the first light emitter 5 and at least a part of the light emitting part is exposed from the other surface 63 of the substrate 61. It is desirable to use a material that can be irradiated at a wide angle as the second light emitter 10. Thereby, it is possible to irradiate the entire light transmitting portion 22.

  In this embodiment, four solar panels 3 are arranged on the outer peripheral side of the cylindrical portion 21 of the apparatus main body 2 and constitute a substantially quadrangular prism. Therefore, when the lighting device 1 removed from the snow pole P is placed on the ground or the like, it is assumed that the lighting device 1 is stably used so that it does not roll with any of the four surfaces down. The four tilt switches 9 are provided so as to be orthogonal to the surface formed by the solar panel 3. By arranging in this manner, the inclination can be detected regardless of which surface of the cylindrical portion 21 is set down.

  As described above, the second light emitting body 10 is turned on when it is detached from the snow pole P and is placed on the ground, so that it can be used, for example, as emergency lighting in the event of a disaster. Although the number of tilt switches is four in this embodiment, the number is not limited to this. Although the tilt switch 9 is provided on the substrate 61, the tilt switch 9 can be appropriately changed according to the application and the use situation.

  In this embodiment, a white LED is used as the second light emitter 10, but the present invention is not limited to this. A white LED is preferable in consideration of workability at night, but it is possible to appropriately change which luminous body is used depending on the purpose of use and the like. The lighting and extinguishing of the second light emitting body 10 are controlled by a signal from the tilt switch 9, but can be controlled by signals from various other sensors. For example, an inclination of the lighting device 1 may be detected by using an acceleration sensor instead of the tilt switch, and control according to the inclination may be performed. In addition, a human sensor may be provided in the lighting device 1 to control the turning on and off of the second light emitting body 10 based on this signal. In this case, usually, lighting and extinguishing of the first light emitting body 5 are alternately repeated to alert the driver of the car. When a person passes near the lighting device 1, the second sensor is used by the human sensor. The illuminant 10 can be turned on to serve as a street lamp for a person.

<Fourth embodiment>
8 to 10 show a fourth embodiment. This embodiment is characterized in that a positioning adapter is provided on the cylindrical portion 21 of the apparatus main body 2. The tubular portion 21 includes a first adapter 11 located on the light transmitting portion 22 side and a second adapter 12 located on the opposite side. The first adapter 11 includes a plurality of plate members 11A, and in this embodiment, four plate members 11A are used. The plate-like member 11A projects from the cylindrical portion 21 to the inside thereof and is inclined so that its area decreases from the base end 22A toward the open end 22B. By providing the first adapter 11 in this manner, when the snow pole P is inserted into the cylindrical portion 21, the snow pole P can be positioned substantially at the center of the cylindrical portion 21.

  The second adapter 12 includes an annular portion 12A inscribed in the cylindrical portion 21 and a plurality of spiral portions 12B extending from the inside of the annular portion 12A toward the center thereof. In this embodiment, three spiral portions 12B are provided, and the distance between the tips 12C of the spiral portions 12B is smaller than the diameter of the snow pole P. Further, the spiral portion 12B has flexibility, and can move so that the distal end 12C approaches or separates from the annular portion 12A. By providing such a second adapter 12, when the snow pole P is inserted into the cylindrical portion 21, the distal end 12C of the spiral portion 12B is bent so as to expand the spiral portion 12B while contacting the periphery of the snow pole P. I do. The snow pole P can be positioned substantially at the center of the cylindrical portion 21 by being pressed to the center by the three tips 12C.

  In this embodiment, the first adapter 11 is formed integrally with the cylinder 21, and the second adapter 12 is formed separately from the cylinder 21. However, the present invention is not limited to this, and the first adapter 11 and the second adapter 12 may be formed integrally with the tubular portion 21 or may be formed separately.

DESCRIPTION OF SYMBOLS 1 Lighting device 2 Device main body 3 Solar panel 4 Storage battery 5 First luminous body 6 Control part 7 Mounting plate 8 Switch 9 Tilt switch (sensor)
10 Second illuminant 11 First adapter (adapter)
12 Second adapter (adapter)
21 Transparent part 22 Tube part P Snow pole

Claims (3)

An apparatus main body, a solar panel arranged on an outer surface of the apparatus main body, a storage battery for storing electric energy supplied from the solar panel, a first luminous body that emits light by power of the storage battery, and charging and discharging of the storage battery A control unit for performing control and lighting control of the first light emitting body,
The solar panel is disposed continuously or intermittently in an annular shape on the outer peripheral side of the device main body,
The storage battery, the first luminous body, and the control unit are located inside the device main body,
The device body includes a cylindrical portion and a light-transmitting portion located at one end of the cylindrical portion and having light transmittance,
The light transmitting portion is formed of a material containing a light storage material, and can store light by sunlight or light emission of the first light emitting body.
When the first illuminant is turned on, the light-storing material accumulates light and at least a part of the irradiation light emitted from the first illuminant passes through the light-transmitting portion, so that the entire light-transmitting portion is reduced. Emits light,
When the first light emitter is turned off, the entire light transmitting portion emits light by the light emission of the light storage material ,
The control unit controls the first light-emitting body to alternately repeat a lighting state and a light-off state when a predetermined lighting condition is satisfied, and gradually increases the brightness of the first light-emitting body in the lighting state. A lighting device, wherein the lighting device is controlled so that the brightness is sharply reduced from a peak state to zero . The lighting device according to claim 1 , wherein a color of light emitted from the light transmitting portion is different between when the first light emitter is turned on and when the first light emitter is turned off . When the first light-emitting body is turned on, a color tone in which the excitation light of the first light-emitting body and the dye of the light-transmitting portion match is visually recognized. The lighting device according to claim 2, wherein a color tone is visually recognized.

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