WO2022080320A1 - Illumination device and illumination method - Google Patents

Abstract

A purpose of the present invention is to provide an illumination device that can operate using an independent power source.　The present invention relates to an illumination device comprising a first conducting part, a second conducting part, a voltage boosting part, and a light producing part. The first conducting part and the voltage boosting part are connected, the second conducting part and the voltage boosting part are connected, the first conducting part and the second conducting part are not connected to each other, and the voltage boosting part and the light producing part are connected. When the first conducting part and the second conducting part come into contact with a medium, the light producing part produces light.

Description

Lighting equipment and lighting method

The present invention relates to a lighting device that operates on an independent power source.

Conventionally, when using a lighting device, it was necessary to supply electric power to the lighting device from the outside or to supply power to the lighting device using a battery.

However, when power is supplied from the outside, it costs electricity, etc., it is not easy to supply power from the outside depending on the installation location of the lighting device, and when the battery runs out, it takes time to replace it. There was a problem such as.

In addition, the liquid used as the electrolytic solution of the battery may have an adverse effect on the human body and the environment, such as the risk of chemical burns, the risk of fire or explosion, or the generation of toxic gas, and the handling of the electrolytic solution is extremely difficult. It was difficult. In addition, when commercializing the product, it is necessary to prevent liquid leakage, and there is a problem that the cost increases.

By the way, in recent years, energy harvesting technology that converts minute energy such as visible light, heat, radio waves, or decomposition treatment of organic substances by microorganisms into electric power has been attracting attention, and an independent power source is used by using the energy harvesting technology. Is being researched to put it to practical use. Furthermore, in the IoT field, research is progressing as a means to obtain various information in various environments by combining a sensor and an independent power supply.

At least one object of the present invention is to provide a lighting device that operates on an independent power source.

According to the present invention, the above object can be solved by [1] to [11].
[1] A first conductive part and a second conductive part, a boosting part, and a light emitting part are provided, the first conductive part and the boosting part are connected, and the second conductive part and the boosting part are connected. The first conductive part and the second conductive part are not in contact with each other, the booster part and the light emitting part are connected, and when the first conductive part and the second conductive part come into contact with the medium, the light emitting part emits light. , Lighting device;
[2] The lighting device according to the above [1], wherein the medium is not an electrolytic solution;
[3] The lighting device according to the above [1] or [2], wherein the first conductive portion and the second conductive portion have a rod shape.
[4] The first conductive portion and the second conductive portion are rod-shaped, and the tips of the first conductive portion and the second conductive portion are provided with a threaded portion that has been threaded, and the first conductive portion and the second conductive portion are provided. The illuminating device according to any one of [1] to [3] above, wherein the second conductive portion is connected to the boosting portion through the threaded portion;
[5] The lighting device according to any one of [1] to [4] above, wherein the first conductive portion and the second conductive portion have a sheet shape.
[6] The first conductive portion and the second conductive portion have a sheet shape, the first conductive portion and the second conductive portion are inclined in the vertical direction, and the lower end portion and the second conductive portion of the first conductive portion are formed. The illuminating device according to any one of [1] to [5] above, wherein the distance between the lower ends of the illuminating device is 10 mm or less.
[7] The first conductive portion and the second conductive portion are in the shape of a sheet, the lighting device is provided with a tubular body, and the sheet-shaped first conductive portion and the second conductive portion are provided on the inner surface of the tubular body. The lighting device according to any one of the above [1] to [6].
[8] The above-mentioned [1] to [7], wherein the lighting device includes a main body portion including a booster portion and a connection portion connecting the light emitting unit and the main body portion, and the connection portion is made of a flexible material. Lighting equipment described in any of;
[9] The lighting device according to the above [8], wherein the diameter of the connecting portion is smaller than the diameter of the light emitting portion.
[10] The booster unit includes a control unit, and the control unit includes a light emission changing means for changing the light emission color, light emission intensity, and / or light emission frequency of the light emitting unit over time. ] The lighting device described in any of the above;
[11] A lighting method including a lighting device, wherein the lighting device includes a first conductive section and a second conductive section, a boosting section, and a light emitting section, and the first conductive section and the boosting section are connected to each other. , The second conductive part and the boosting part are connected, the first conductive part and the second conductive part are not in contact with each other, the booster part and the light emitting part are connected, and the first conductive part and the second conductive part are connected. An illumination method in which the light emitting part emits light when the part comes into contact with the medium.

According to the present invention, it is possible to provide a lighting device that operates with an independent power source.

It is a block diagram for demonstrating the mechanism of power generation of a lighting apparatus which concerns on embodiment of this invention. It is a block diagram which shows the structure of the power conversion part which concerns on embodiment of this invention. It is a figure which shows the basic structure of the lighting apparatus which concerns on embodiment of this invention. It is a figure which shows the example of the lighting apparatus which concerns on embodiment of this invention. It is a figure which shows the example of the lighting apparatus which concerns on embodiment of this invention. It is a figure which shows the example of the lighting apparatus which concerns on embodiment of this invention. It is a figure which shows the example of the lighting apparatus which concerns on embodiment of this invention. It is a figure which shows the example of the lighting apparatus which concerns on embodiment of this invention. It is a figure which shows the example of the lighting apparatus which concerns on embodiment of this invention. It is a figure which shows the example of the lighting apparatus which concerns on embodiment of this invention. It is a figure which shows the example of the lighting apparatus which concerns on embodiment of this invention.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. Hereinafter, the description regarding the effect is one aspect of the effect of the embodiment of the present invention, and is not limited to what is described here.

[Mechanism of power generation of lighting equipment]
FIG. 1 is a block diagram for explaining a mechanism of power generation of a lighting device according to an embodiment of the present invention. As shown in FIG. 1, the block diagram is composed of a first conductive portion 1, a second conductive portion 2, a functional portion 3, and a medium 4. The first conductive portion 1 and the functional portion 3, and the functional portion 3 and the second conductive portion 2 are electrically connected to each other. "Electrically connected" means, for example, connected so as to be energized by a conducting wire or the like. Further, the functional unit 3 operates by the input voltage generated when at least a part of the first conductive unit 1 and the second conductive unit 2 comes into contact with the medium 4.

The first conductive portion 1 and the second conductive portion 2 are not in contact with each other. The “non-contact” means, for example, a state in which the first conductive portion 1 and the second conductive portion 2 are not in direct contact with each other.

The distance between the position where the first conductive portion 1 contacts the medium 4 and the position where the second conductive portion 2 contacts the medium 4 is preferably 1 cm or more, and more preferably 10 cm or more. It is more preferable that the distance is 100 cm or more, and it is particularly preferable that the distance is 1000 cm (10 m) or more.

It is preferable that both the first conductive portion 1 and the second conductive portion 2 have conductivity. Here, examples of the material of the first conductive portion 1 and the second conductive portion 2 include a metal, a conductive polymer, carbon, and the like. The shapes of the first conductive portion 1 and the second conductive portion 2 are not particularly limited. The shapes of the first conductive portion 1 and the second conductive portion 2 are spherical, rectangular parallelepiped, cylindrical, prismatic, conical, pyramidal, cylindrical, square tubular, plate-shaped, sheet-shaped, film-shaped, or string. It may be in the shape and may be in any shape.

Examples of the metal used for the first conductive portion 1 and the second conductive portion 2 include silver, copper, gold, aluminum, magnesium, zinc, nickel, platinum, tin, titanium, stainless steel, zinc oxide, magnesium oxide, or. In addition, it can be appropriately selected and used from the oxides and alloys of the above-mentioned metals. Further, the predetermined metal may be coated with another metal different from the predetermined metal or a material having other conductivity.

The materials of the first conductive portion 1 and the second conductive portion 2 may be different types or may be the same type. For example, a stainless steel columnar bar can be used for the first conductive section 1, and a zinc columnar bar can be used for the second conductive section 2. In this case, the first conductive section 1 and the second conductive section 2 are connected to the functional section 3 or the step-up circuit / step-down circuit by a conducting wire.

When the polarization resistance of at least one of the first conductive portion 1 and the second conductive portion 2 is measured by using the AC impedance method, the measured value is preferably 100 Ω or more.

Here, the conductive portion that is the starting point of the current is defined as the first conductive portion 1, and the conductive portion that is the ending point is defined as the second conductive portion 2. Which conductive portion functions as the first conductive portion 1 is determined by the material of the conductive portion or the environment surrounding the conductive portion (for example, temperature, humidity, atmospheric pressure, pH, etc.). A chemical reaction is carried out at the interface between the first conductive portion 1 or the second conductive portion 2 and the medium 4, and free electrons are generated in the conductive portion.

For example, when different metals are used in the first conductive portion 1 and the second conductive portion 2, the metal having a lower standard electrode potential is used, and the metal having a higher standard electrode potential is used for the first conductive portion 1. Is the second conductive portion 2. In this case, electrons move from the second conductive section 2 toward the functional section 3, and electrons move from the functional section 3 toward the first conductive section 1. That is, a current is generated from the first conductive portion 1 side to the second conductive portion 2 side via the functional portion 3. For example, in the second conductive portion 2, the metal constituting the conductive portion elutes into the medium 4 as cations to generate free electrons, and in the first conductive portion 1, the cations in the water of the medium 4 become electrons. It reacts and is electrically neutralized.

The high and low of the standard electrode potential is determined by comparing the relative values (relative values) of the standard electrode potentials of the substances, and is not compared by using the absolute value of the standard electrode potentials. For example, when a substance A having a standard electrode potential of −5 V and a substance B having a standard electrode potential of + 2 V are compared, the standard electrode potential of the substance A is low and the standard electrode potential of the substance B is high.

On the other hand, even when the same metal is used for the conductive portion, one of the conductive portions is designated as the first conductive portion 1 and the other is conductive depending on the conditions of the surrounding environment of the conductive portion such as temperature, humidity, atmospheric pressure, and pH. The portion functions as the second conductive portion 2 and a current is generated. Therefore, if the ambient temperature, humidity, atmospheric pressure, pH, and other conditions of the two conductive parts change, what was functioning as the first conductive part functions as the second conductive part and functions as the second conductive part. It is also possible that something functions as the first conductive part.

The electromotive force generated from the first conductive portion 1 and the second conductive portion 2 is preferably 0.9 V or less, more preferably 0.35 V or less, and further preferably 0.25 V or less. Further, the electromotive force generated from the first conductive portion 1 and the second conductive portion 2 is preferably 5 mV or more.

The functional unit 3 refers to a unit that performs a predetermined function by being energized, for example. The functional unit 3 is a power consuming unit that consumes electric power and exerts a predetermined function, a power storage unit that stores electricity generated in the conductive unit, and an output voltage conversion that converts an output voltage such as a step-up circuit or a step-down circuit. It can include a control unit such as a microcomputer that controls a circuit, a communication unit that can wirelessly communicate with other devices, and the like.

As the power consumption unit, a light source such as an incandescent light bulb or a light emitting diode can be adopted. Further, as the power consumption unit, in addition to the light source, a heating element that emits heat, a sounding element that emits sound, a transmitter that emits a signal, a sensor, and the like may be provided. The power storage unit may be included in a step-up circuit or a step-down circuit. A control unit such as a microcomputer can control a circuit to discharge the electricity stored in the power storage unit under predetermined conditions. The released electricity is consumed by the power consumption unit. Further, since the control unit such as a microcomputer also consumes a small amount of electric power, it is possible to control so as to discharge the stored electricity while securing the electric power required for activating the control unit.

The functional unit 3 may include any one of a power consumption unit, a power storage unit, an output voltage conversion unit, a communication unit, and a control unit, and the power consumption unit, the power storage unit, the output voltage conversion unit, the communication unit, and the control unit. The functional unit 3 may be configured by combining any two or more of the units. Further, the functional unit 3 may be integrally configured with any two or more of the power consumption unit, the power storage unit, the output voltage conversion unit, the communication unit, and the control unit, and the power consumption unit, the power storage unit, and the output may be integrated. Any of the voltage conversion unit, the communication unit, and the control unit may be electrically connected and configured separately.

The input impedance in the functional unit 3 is preferably 1 kΩ or more, and more preferably 10 kΩ or more. Further, the input impedance of the functional unit 3 preferably has a non-linear current-voltage characteristic (IV characteristic). The non-linear current-voltage characteristic means, for example, that the voltage value increases as the current value increases in the voltage change when a current is passed through the functional unit 3, but the current value increases as the current value increases. This refers to the case where the amount of increase in the voltage value required for this is large and the voltage is not proportional to the current. In other words, the current value increases as the voltage value applied to the functional unit 3 increases, but as the voltage value increases, the degree to which the current value increases by increasing the voltage value decreases, and the current value becomes voltage. A case that is not proportional to the value. Since the input impedance in the functional unit 3 has a non-linear current-voltage characteristic, it becomes easy to maintain the electromotive force generated between the first conductive unit 1 and the second conductive unit 2.

It is preferable that the functional unit 3 has a function of converting the output impedance. This makes it possible to control the influence on the input signal of the functional unit 3.

Further, the functional unit 3 has a power storage unit and stores electric charges supplied from the first conductive unit and / or the second conductive unit. The control unit controls to release the accumulated electric charge in a time shorter than the time required for accumulating the electric charge.

The lower limit of the operating voltage of the functional unit 3 is preferably 0.9 V or less. It is more preferable to operate at 0.35 V or less, and further preferably to operate at 20 mV or less.

The medium 4 may be in any form of gas, liquid, and solid. The medium 4 may be in the form of a sol or a gel. The medium 4 is not particularly limited as long as it can cause a chemical reaction at the interface with the first conductive portion 1 or the second conductive portion 2. As the medium 4, it is preferable to use a medium having no conductivity. The gas is not particularly limited as long as it is a gas when the lighting device of the present invention generates electricity, and examples thereof include oxygen, carbon dioxide, nitrogen, hydrogen, and methane. When a gas is used as the medium 4, only a single type of gas may be used, or a mixture of a plurality of types of these gases may be used. The medium 4 preferably contains water.

The liquid used as the medium 4 is not particularly limited. For example, water, a highly polar organic solvent, a less polar organic solvent, or a non-polar organic solvent can be used. Further, as the liquid used as the medium 4, a mixture of water and a highly polar organic solvent, a mixture of two or more different organic solvents, an emulsion, or the like can also be used. As the water, not only pure water but also one containing an electrolyte, that is, an electrolytic solution can be used.

Among the electrolytes contained in water, the concentration of cations may be 1 mol / L or less, 0.6 mol / L or less, 0.1 mol / L or less, and 0. It may be 01 mol / L or less, and further may be 0.001 mol / L or less. There is no problem even if the medium 4 is not the electrolytic solution used in the battery.

As the highly polar organic solvent, for example, lower alcohols such as methanol and ethanol, lower carboxylic acids such as formic acid and acetic acid, acetone, tetrahydrofuran, dimethyl sulfoxide and the like can be used. Further, as the organic solvent having a low polarity, a higher alcohol such as hexanol or octanol, a higher carboxylic acid such as hexanoic acid or octanol, or the like can be used. Examples of the non-polar organic solvent include aliphatic hydrocarbons such as hexane, octane and nonane, and aromatic compounds such as benzene, toluene and xylene. When a liquid is used as the medium 4, only a single type of liquid may be used, or a mixture of a plurality of types of these liquids may be used.

The solid used as the medium 4 is not particularly limited. For example, powdery or granular solids such as sand and soil can be used. Alternatively, a solid having high water absorption, such as plaster, can be used.

The solid used as the medium 4 preferably contains water. The water content of the solid used as the medium 4 is preferably 1% by mass or more, more preferably 5% by mass or more, and further preferably 10% by mass or more. The water content of the solid used as the medium 4 is preferably 200% by mass or less. Here, the water content means the weight of water divided by the sum of the weight of water and the weight of solid content.

The resistance value between the first conductive portion 1 and the second conductive portion 2 of the medium 4 is preferably 1 kΩ or more, and more preferably 10 kΩ or more.

FIG. 2 is a block diagram showing a configuration of a power conversion unit according to an embodiment of the present invention. FIG. 2A is a circuit diagram of a booster circuit according to an embodiment of the present invention. The step-up circuit or step-down circuit is an example of the functional unit 3 and includes a power storage unit.

As shown in the figure, the inductor L, the diode D, the transistor Tr, and the capacitor C are electrically connected. For example, the input terminal A1 is connected to the first conductive portion 1, and the input terminal A2 is connected to the second conductive portion 2. The output terminal B1 and the output terminal B2 are connected to a power consumption unit, a control unit, and the like. The control unit may be connected between the booster circuit and the first conductive unit 1 and the second conductive unit 2 so as to be in parallel with the booster circuit.

When the input voltage _VIN is applied when the transistor Tr is ON, electric energy is stored in the inductor L. The input voltage V _IN is the potential difference between the connection point P ₁ and the connection point P ₂ . When the transistor Tr is OFF, the energy stored in the inductor L is added to the electric energy derived from the input voltage _VIN , and the energy is output via the diode D. As a result, the output voltage V _OUT , which is the potential difference between the connection point P ₃ and the connection point P ₄ , is higher than the input voltage V _IN . The booster circuit is based on the premise that the input voltage _VIN is lower than the predetermined voltage, and the boost control may not be executed at a voltage higher than the predetermined voltage. The input voltage _VIN of the booster circuit is preferably 5 mV or more. The ON / OFF of the transistor Tr is controlled by the control unit.

FIG. 2B is a circuit diagram of a step-down circuit according to an embodiment of the present invention. As shown, the transistor Tr, the inductor L, the diode D, and the capacitor C are electrically connected. For example, the input terminal A1 is connected to the first conductive portion 1, and the input terminal A2 is connected to the second conductive portion 2. The output terminal B1 and the output terminal B2 are connected to a power consumption unit, a control unit, and the like. The control unit may be connected between the step-down circuit and the first conductive unit 1 and the second conductive unit 2 so as to be in parallel with the step-down circuit.

When the transistor Tr is ON, electric energy is stored in the inductor L. The input voltage V _IN is the potential difference between the connection point P ₁₁ and the connection point P ₁₂ , and the output voltage V _OUT is the potential difference between the connection point P ₁₃ and the connection point P ₁₄ . In this case, the input voltage V _IN is substantially equal to the output voltage V _OUT . When the transistor Tr is turned off, the potential of the connection point P ₁₅ at the left end of the inductor L becomes lower than the potential of the connection point P ₁₄ , so that the output voltage V _OUT becomes a lower voltage. The step-down circuit is based on the premise that the input voltage _VIN is higher than the predetermined voltage, and the step-down control may not be executed at a voltage lower than the predetermined voltage. The ON / OFF of the transistor Tr is controlled by the control unit.

[Basic structure of lighting equipment]
FIG. 3 is a diagram showing a basic structure of a lighting device according to an embodiment of the present invention. As shown in FIG. 3, the lighting device of the present invention includes a first conductive section 1 and a second conductive section 2, a boosting section 5, and a light emitting section 6. Further, the first conductive portion 1 and the boosting portion 5 are connected, the second conductive portion 2 and the boosting portion 5 are connected, and the first conductive portion 1 and the second conductive portion 2 are not in contact with each other. , The boosting unit 5 and the light emitting unit 6 are connected. Further, in the lighting device of the present invention, as described above, when the first conductive portion 1 and the second conductive portion 2 come into contact with the medium 4, the light emitting unit 6 emits light.

The first conductive section 1 and the boosting section 5, the boosting section 5 and the light emitting section 6, and the boosting section 5 and the second conductive section 2 are electrically connected to each other. "Electrically connected" means, as described above, connected so as to be energized by, for example, a conducting wire or the like.

The shapes of the first conductive portion 1 and the second conductive portion 2 are not particularly limited, but are preferably sheet-shaped or rod-shaped.

The sheet shape means a thin shape, and for example, the thickness of the first conductive portion 1 and the second conductive portion 2 may be a predetermined value. The predetermined thickness may be, for example, 5 mm, 2 mm, 1 mm, 0.5 mm, or the like.

As described above, since the shapes of the first conductive portion 1 and the second conductive portion 2 are sheet-like, it is possible to design the lighting device suitable for the overall shape of the lighting device and the installation location of the lighting device. ..

The rod shape means an elongated shape, for example, the length of the first conductive portion 1 and the second conductive portion 2 in the longitudinal direction is perpendicular to the longitudinal direction of the first conductive portion 1 and the second conductive portion 2. It may be longer than the diameter of the cross section or the length of one side. The rod shape may include, for example, a columnar shape, a prismatic shape, a conical shape, a pyramidal shape, or the like.

Further, when the shape of the first conductive portion 1 and the second conductive portion 2 is rod-shaped, the thread cutting portion 20 which has been threaded is provided at the tips of the first conductive portion 1 and the second conductive portion 2. Is preferable. Then, as will be described later, it is preferable that the first conductive portion 1 and the second conductive portion 2 are connected to the boosting section 5 through the threading section 20.

In this way, the shape of the first conductive part and the second conductive part is rod-shaped, so that the lighting device can be installed by inserting it into a container containing water or soil or sand (hereinafter referred to as soil). It will be easy.

Further, as described above, the first conductive portion and the second conductive portion have a rod-like shape, and the tips of the first conductive portion and the second conductive portion are provided with a threaded portion that has been threaded. By electrically connecting the conductive portion and the second conductive portion to the boosting portion through the threaded portion, it becomes easy to attach the first conductive portion and the second conductive portion to the lighting device. Further, inside the lighting device, the first conductive portion, the second conductive portion, and the boosting portion can be electrically connected without structural waste. Further, it becomes easy to replace the first conductive portion and the second conductive portion of the lighting device. In addition, it is possible to prevent foreign substances such as water and dust from entering the inside of the lighting device.

The materials of the first conductive portion 1 and the second conductive portion 2 are not particularly limited, and the above description can be adopted within a necessary range.

The medium 4 is not particularly limited, and the above description can be adopted to the extent necessary.

The medium 4 may not be an electrolytic solution.

As described above, since the medium is not an electrolytic solution, it is possible to provide a lighting device that operates on various media.

The booster unit 5 included in the lighting device of the present invention includes a booster circuit. Further, it is preferable that the booster unit 5 includes a control unit such as a microcomputer. As for the booster circuit and the control unit, the above description can be adopted to the extent necessary.

Further, in the lighting device of the present invention, it is preferable that the control unit changes the emission color, emission intensity, and / or emission frequency of the light emitting unit 6 over time. The control unit may change the emission color, emission intensity, and / or emission frequency of the light emitting unit 6 over time by adjusting the electric power supplied to the light emitting unit 6.

For example, the light emitting unit 6 has a plurality of red, blue, and green light emitting elements, and controls the light emitting color by changing the number of light emitting elements that supply electric power for each light emitting element of each color. can do. For example, when the light emitting unit 6 emits light in red, power may be supplied only to the red light emitting element, and when the light emitting unit 6 emits light in purple, only the same number of red light emitting elements and blue light emitting elements are used. Power to.

Further, for example, when the intensity of light emission of the light emitting unit 6 is increased with time and weakened with time, such as blinking of the light of a firefly, the control unit is a light emitting unit. The electric power supplied to No. 6 may be increased with time or decreased with time.

Further, for example, when the light emitting unit 6 is turned on once every 5 seconds, the control unit may supply electric power to the light emitting unit 6 once every 5 seconds.

As described above, the booster unit is provided with the control unit, and the control unit is provided with the light emission changing means for changing the light emission color and / or the light emission frequency of the light emitting unit, so that the illumination can be performed according to the user's preference. It will be possible.

The light emitting unit 6 is not particularly limited as long as it emits light. For example, a light emitting diode (LED), a fluorescent lamp, an incandescent lamp, or the like can be provided. As described above, when the control unit changes the emission color of the light emitting unit 6, the light emitting unit 6 preferably has a plurality of different emission colors.

As described above, the lighting device includes the first conductive portion and the second conductive portion, the boosting portion, and the light emitting portion, and when the first conductive portion and the second conductive portion come into contact with the medium, the light emitting portion emits light. By doing so, it is possible to provide a lighting device that operates with an independent power source without supplying electric power from the outside or supplying electric power using a battery.

[Lighting device]
The lighting device according to the embodiment of the present invention has the above-mentioned basic structure. In addition to the above basic structure, various structures may be provided. The shape, size, material, arrangement in the lighting device, etc. of each part of the lighting device are not particularly limited and can be appropriately designed.

FIG. 4 is a diagram showing an example of a lighting device according to an embodiment of the present invention. As shown in the figure, the lighting device 100a includes a first conductive unit 1, a second conductive unit 2, a boosting unit 5, and a light emitting unit 6. Further, the lighting device 100a includes a main body portion 10 including a boosting section 5, and a connecting section 11 for connecting the light emitting section 6 and the main body section 10. Further, the lighting device 100a includes a support portion 12 that supports the lighting device 100a.

The first conductive portion 1 and the second conductive portion 2 are provided with a threaded portion 20 that has been threaded at the tip of the upper portion. The first conductive portion 1 and the second conductive portion 2 can be installed in the main body portion 10 by using the threaded portion 20. In FIG. 4, the first conductive portion 1 and the second conductive portion 2 are inserted into a hole (not shown) provided at the bottom of the main body portion 10 by utilizing the threaded portion 20, and the main body portion 10 is inserted. It is fixed to.

Further, the first conductive section 1 and the second conductive section 2 are connected to the step-up section 5 through the threading section 20. The threaded portion 20 may be connected to the boosting portion 5 by a conducting wire, for example, and may come into contact with another metal component provided inside the main body portion 10, and the other metal component may come into contact with the other metal component. It may be connected to the boosting unit 5 by a conducting wire.

Further, as shown in FIG. 4, the first conductive portion 1 and the second conductive portion 2 may have a shape such that the tip of the lower portion is sharpened. Since the tips of the lower portions of the first conductive portion 1 and the second conductive portion 2 are sharp, the first conductive portion 1 and the second conductive portion 2 are inserted into soil or the like when the lighting device 100a is installed on the ground. Will be easy.

The shape of the main body 10 is not particularly limited. The shape of the main body portion 10 may be, for example, a conical shape, a pyramidal shape, a dome shape, a rectangular parallelepiped shape, a columnar shape, a square columnar shape, or the like.

The material of the main body 10 is not particularly limited. As the material of the main body 10, for example, a metal such as stainless steel or aluminum, a synthetic resin such as acrylic resin, or the like can be used. When the lighting device 100a is installed outdoors, the material of the main body 10 is preferably weather resistant.

In FIG. 4, the connection portion 11 of the lighting device 100a is provided on the upper portion of the main body portion 10. A light emitting portion 6 is provided at the tip of the connecting portion 11 opposite to the main body portion 10. The connection portion 11 of the lighting device 100a is preferably made of a flexible material.

The material that can be bent is not particularly limited as long as it can be bent appropriately. For example, as a flexible material, a conductive material such as a piano wire, a hard steel wire, a mild steel wire, a metal wire such as a stainless steel wire, or the like can be used.

In the connection portion 11, the flexible material may be covered with another material having an insulating property. Further, both the flexible material and the conducting wire for electrically connecting the boosting unit 5 and the light emitting unit 6 may be covered with another material. The other material may be an insulator. Further, when the lighting device 100a is installed outdoors, it is preferable that the other material is a weather resistant material.

The length of the connection portion 11 is not particularly limited. The length of the connecting portion 11 may be, for example, 10 cm, 50 cm, or 100 cm.

The diameter of the connecting portion 11 is preferably smaller than the diameter of the light emitting portion 6. Here, the diameter of the connecting portion 11 may be the diameter of the cross section perpendicular to the longitudinal direction of the connecting portion 11. Further, the diameter of the light emitting portion 6 may be the diameter of the cross section perpendicular to the longitudinal direction of the light emitting portion 6.

The diameter of the connecting portion 11 is preferably 1/2 or less, more preferably 1/3 or less, and further preferably 1/4 or less of the diameter of the light emitting portion 6.

Further, as described above, the lighting device includes a main body portion including a booster portion and a connection portion connecting the light emitting unit and the main body portion, and the connection portion is made of a flexible material so that the light emitting unit can be formed. It will be possible to sway naturally due to the wind.

As described above, since the diameter of the connecting portion 11 is smaller than the diameter of the light emitting portion 6, the light emitting portion can be easily fluctuated.

In FIG. 4, the support portion 12 of the lighting device 100a is provided around the lower portion of the main body portion 10. When the lighting device 100a is installed on the ground and the first conductive portion 1 and the second conductive portion 2 are installed in the ground so that the main body portion 10 is present on the ground, the support portion 12 is installed on the ground surface. Supports the lighting device 100a.

The shape of the support portion 12 is not particularly limited as long as it can support the lighting device. For example, the shape of the support portion 12 may be a disk shape, a polygonal shape, or a shape like a plurality of legs.

The material of the support portion 12 is not particularly limited. As the material of the support portion 12, for example, a metal such as stainless steel or aluminum, a synthetic resin such as acrylic resin, or the like can be used. When the lighting device 100a is installed outdoors, the material of the support portion 12 is preferably weather resistant.

Further, the support portion 12 may be provided with a hole 21 as shown in the figure. By providing the hole 21, it is possible to install a pile, a screw, or the like in the hole 21 and fix the lighting device 100a to the ground. Further, since the hole 21 is provided, rainwater or the like easily permeates the ground where the lighting device 100a is installed through the hole 21, and it becomes easy to obtain electric power for the light emitting unit to emit light.

In the lighting device 100a, the first conductive portion 1 and the second conductive portion 2 are inserted into soil or the like and installed on the ground, or the first conductive portion 1 and the second conductive portion 2 are inserted into a container containing water or the like and installed. Can be done. Then, when the first conductive portion 1 and the second conductive portion 2 come into contact with the medium, the light emitting portion 6 emits light.

FIG. 5 is a diagram showing an example of a lighting device according to an embodiment of the present invention. As shown in the figure, the lighting device 100b includes a first conductive unit 1, a second conductive unit 2, a boosting unit 5, and a light emitting unit 6. Further, the lighting device 100b includes a main body portion 10 including a boosting section 5, and a connecting section 11 for connecting the light emitting section 6 and the main body section 10. Further, the lighting device 100b includes a support portion 12 that supports the lighting device 100b.

As shown in the figure, the lighting device 100b includes a first conductive portion 1 and a second conductive portion 2 at the bottom of the main body portion 10. Further, the lighting device 100b includes a support portion 12 around the lower portion of the main body portion 10. The shape, material, arrangement, structure, etc. (hereinafter referred to as the shape, etc.) of the first conductive portion 1, the second conductive portion 2, the main body portion 10, and the support portion 12 adopt the description of the lighting device 100a to the extent necessary. can.

The lighting device 100b is provided with a connection portion 11 on the upper portion of the main body portion 10. The illuminating device 100b can include one or more connecting portions 11. For example, in FIG. 5, the lighting device 100b includes three connection portions 11 of a connection portion 11a, a connection portion 11b, and a connection portion 11c between the main body portion 10 and the light emitting portion 6. The main body 10 and the connecting portion 11a, the connecting portion 11a and the connecting portion 11b, the connecting portion 11b and the connecting portion 11c, and the connecting portion 11c and the light emitting portion 6 are connected to each other. The lighting device 100b can adjust the height of the light emitting unit 6, that is, the height of the lighting device 100b by adjusting the number of the connecting portions 11.

The shape of the connection portion 11 is not particularly limited. For example, the shape of the connecting portion 11 may be a cylinder, a square cylinder, a plate, a rod, a spiral, or the like. Further, the shape of the connecting portion 11 may be a straight shape or a curved shape. When connecting the connection portions 11, those having the same shape may be connected to each other, or those having different shapes may be connected. For example, straight shapes may be connected to each other, and curved shapes and straight shapes may be connected. Further, the connecting portion 11 may have a shape having a branch.

The material of the connection portion 11 is not particularly limited. The material of the connecting portion 11 is preferably weather resistant. As the material of the connecting portion 11, for example, a metal such as stainless steel or aluminum, a synthetic resin such as acrylic resin, or the like can be used.

Further, the method of connecting the connection unit 11 is not particularly limited. The connecting portion 11 may be connected by, for example, screwing, inserting, welding, attaching a joint component, or the like. Further, the connecting portion 11 may be processed to be suitable for the connecting method. For example, the tip of each connection portion 11 may be threaded, or the tip of each connection portion 11 may be provided with a flange.

In the lighting device 100b, the first conductive portion 1 and the second conductive portion 2 are inserted into soil or the like and installed on the ground, or the first conductive portion 1 and the second conductive portion 2 are inserted into a container containing water or the like and installed. Can be done. Then, when the first conductive portion 1 and the second conductive portion 2 come into contact with the medium, the light emitting portion 6 emits light.

FIG. 6 is a diagram showing an example of a lighting device according to an embodiment of the present invention. As shown in the figure, the lighting device 100c includes a first conductive unit 1, a second conductive unit 2, a boosting unit 5, and a light emitting unit 6. Further, the lighting device 100c includes a main body portion 10 having a boosting section 5 and a bulk section 14 covering the light emitting section 6. Further, the lighting device 100c includes a protrusion 13 having a shape like a protrusion.

As shown in the figure, the lighting device 100c is provided with a protrusion 13 at the bottom of the main body 10. The surface of the protrusion 13 is provided with the first conductive portion 1 and the second conductive portion 2 so as not to come into contact with each other. The first conductive portion 1 and the second conductive portion 2 are in the form of a sheet. In FIG. 6, an inverted triangular sheet-shaped first conductive portion 1 and a second conductive portion 2 are provided on the left and right sides of the surface of the inverted conical protrusion 13.

The method of providing the first conductive portion 1 and the second conductive portion 2 on the protrusion 13 is not particularly limited, and the first conductive portion 1 and the second conductive portion 2 may be fixed to the protrusion 13. For example, the first conductive portion 1 and the second conductive portion 2 may be adhered to the protrusion 13 with an adhesive or the like, and the first conductive portion 1 and the second conductive portion 2 are fixed to the protrusion 13. It may be fixed by using.

The material of the protrusion 13 is preferably an insulator. As the material of the protrusion 13, for example, a synthetic resin such as phenol resin, melamine resin, urea resin, alkyd resin, epoxy resin, polyurethane, polyethylene, polypropylene, acrylic resin, and polycarbonate can be used.

Although not shown, the protrusion 13 is provided with a hole, and the first conductive portion 1, the second conductive portion 2 and the boosting portion 5 may be connected by a conducting wire or the like through the hole.

Since the lighting device 100c is provided with a protrusion 13 at the bottom of the main body 10, it can be easily inserted into soil or the like when the lighting device 100c is installed on the ground.

As shown in the figure, the lighting device 100c includes a light emitting portion 6 and a bulk portion 14 that covers the main body portion 10. In FIG. 6, the cap portion 14 is provided on the upper portion of the protrusion portion 13.

The shape of the cap 14 is not particularly limited. For example, the shape of the cap portion 14 may be spherical, conical, pyramidal, rectangular parallelepiped, or the like. Alternatively, the cap portion 14 may be formed of a wire-like material, and the shape of the entire cap portion 14 formed of the wire-like material may be spherical, conical, pyramidal, rectangular parallelepiped, or the like.

The material of the cap 14 is not particularly limited. For example, the material of the bulk portion 14 includes metals such as stainless steel and aluminum, synthetic resins such as phenol resin, melamine resin, urea resin, alkyd resin, epoxy resin, polyurethane, polyethylene, polypropylene, acrylic resin and polycarbonate, and cloth. Glass or the like can be used. Unless the bulk portion 14 is made of a wire-like material, the material of the bulk portion 14 is preferably one that transmits light.

The inside of the bulk portion 14 may be processed to diffuse the light of the light emitting portion 6. For example, a paint or the like for diffusing light may be applied to the inside of the bulk portion 14, or a film or the like for diffusing light may be provided inside the bulk portion 14.

A light emitting unit 6 is provided on the upper portion of the main body portion 10 of the lighting device 100c. As for the shape of the main body 10 of the lighting device 100c, the description of the lighting device 100a can be adopted within a necessary range.

In the lighting device 100c, the protrusion 13 including the first conductive portion 1 and the second conductive portion 2 is inserted into soil or the like and installed on the ground, or the protrusion 13 including the first conductive portion 1 and the second conductive portion 2 is provided. It can be installed by inserting it into a container containing water or the like. Then, when the first conductive portion 1 and the second conductive portion 2 come into contact with the medium, the light emitting portion 6 emits light.

FIG. 7 is a diagram showing an example of a lighting device according to an embodiment of the present invention. As shown in the figure, the lighting device 100d includes a first conductive unit 1, a second conductive unit 2, a boosting unit 5, and a light emitting unit 6. Further, the lighting device 100d includes a main body unit 10 including a boosting unit 5. Further, the lighting device 100d includes a protrusion 13 shaped like a protrusion and an inclined portion 15 having an inclination.

FIG. 7A is a perspective view of the lighting device 100d. As shown in FIG. 7A, an inclined portion 15 is provided on the upper portion of the main body portion 10 of the lighting device 100d. Further, FIG. 7B is a plan view of the lighting device 100d. As shown in FIG. 7B, the inclined portion 15 may appear to have a circular shape when viewed from directly above the lighting device 100d. The sheet-shaped first conductive portion 1 and second conductive portion 2 are provided on the upper surface of the inclined portion 15 so as not to come into contact with each other. For example, as shown in FIGS. 7A and 7B, a semi-circular sheet-shaped first conductive portion 1 and second conductive portion 2 are provided for objects on the left and right sides of the upper surface of the inclined portion 15. It may be done.

FIG. 7 (C) is a sectional view taken along the line AA of FIG. 7 (B). That is, FIG. 7C is a cross-sectional view of the lighting device 100d cut in half vertically so as to include the first conductive portion 1 and the second conductive portion 2. As shown in FIG. 7C, the inclined portion 15 of the lighting device 100d has an inclination such that the outside is high and the inside is low. That is, the inclined portion 15 has a shape in which a circle is bent at the center line, and the center line is low. The semicircular sheet-shaped first conductive portion 1 and second conductive portion 2 are provided on the slope of the inclined portion 15. That is, the first conductive portion 1 and the second conductive portion 2 are inclined in the vertical direction.

FIG. 7 (D) is a sectional view taken along the line BB of FIG. 7 (B). That is, FIG. 7D is a cross-sectional view of the illuminating device 100d cut in half vertically along the lowered center line of the inclined portion 15. As shown in FIG. 7D, the illuminating device 100d may have a further inclination on the center line of the inclined portion 15. It is preferable that the illuminating device 100d has an inclination of the inclined portion 15 such that the center of the circle on the center line is high and the outside of the circle on the center line is low. In this way, the inclined portion 15 has an inclination such that the center of the circle on the center line is high and the outside of the circle on the center line is low among the low center lines. A medium such as water does not collect in the portion 15, and easily flows down to the outside of the inclined portion 15.

When the lower end of the first conductive portion 1 and the second conductive portion 2 is the lower end portion, the distance between the lower end portion of the first conductive portion 1 and the lower end portion of the second conductive portion 2 is short. Is preferable. The distance between the lower end portion of the first conductive portion 1 and the lower end portion of the second conductive portion 2 is preferably 10 mm or less, more preferably 5 mm or less, and further preferably 3 mm or less.

In this way, the shapes of the first conductive portion and the second conductive portion are sheet-like, the first conductive portion and the second conductive portion are inclined in the vertical direction, and the lower end portion of the first conductive portion and the second conductive portion are formed. Since the distance between the lower ends of the portions is 10 mm or less, even a small amount of medium can be efficiently brought into contact with the first conductive portion and the second conductive portion.

The shape of the inclined portion 15 may be a shape in which the circle as described above is bent at the center line, or may be a mortar-shaped shape (not shown).

The method of providing the first conductive portion 1 and the second conductive portion 2 to the inclined portion 15 is not particularly limited, and the first conductive portion 1 and the second conductive portion 2 may be fixed to the inclined portion 15. For example, the first conductive portion 1 and the second conductive portion 2 may be adhered to the inclined portion 15 with an adhesive or the like, and the first conductive portion 1 and the second conductive portion 2 are fixed to the inclined portion 15. It may be fixed by using.

The material of the inclined portion 15 is preferably an insulator. For example, as the material of the inclined portion 15, a synthetic resin such as phenol resin, melamine resin, urea resin, alkyd resin, epoxy resin, polyurethane, polyethylene, polypropylene, acrylic resin, and polycarbonate can be used.

Although not shown, a hole may be provided in the inclined portion 15, and the first conductive portion 1, the second conductive portion 2 and the boosting portion 5 may be connected by a conducting wire or the like through the hole.

Further, a light emitting unit 6 is provided in the lower part of the main body portion 10 of the lighting device 100d. A protrusion 13 is provided below the light emitting portion 6 of the lighting device 100d.

As for the shape of the main body 10 of the lighting device 100d, the description of the lighting device 100a can be adopted within a necessary range.

As for the shape of the protrusion 13 of the lighting device 100d, the description of the lighting device 100c can be adopted within a necessary range.

The lighting device 100d can be installed on the ground by inserting the protrusion 13 into soil or the like, or can be installed by inserting it into a container. Then, when the first conductive portion 1 and the second conductive portion 2 provided on the inclined portion 15 come into contact with the medium, the light emitting portion 6 emits light.

FIG. 8 is a diagram showing an example of a lighting device according to an embodiment of the present invention. As shown in the figure, the lighting device 100e includes a first conductive unit 1, a second conductive unit 2, a boosting unit 5, and a light emitting unit 6. Further, the lighting device 100e includes a bulk portion 14 that covers the light emitting portion 6.

FIG. 8A is a front view of the lighting device 100e. As shown in the figure, in the lighting device 100e, the booster portion 5 and the light emitting portion 6 are covered with the bulk portion 14. The boosting unit 5 and the light emitting unit 6 are provided in a substantially central portion of the bulk portion 14.

FIG. 8B is a bottom view of the lighting device 100e. As shown in the figure, a sheet-shaped first conductive portion 1 and second conductive portion 2 are provided on the bottom surface of the bulk portion 14 of the lighting device 100e. The first conductive portion 1 and the second conductive portion 2 are fan-shaped, and two pairs are provided on the bottom surface of the circular cap portion 14 so as not to come into contact with each other. In FIG. 8B, the first conductive portion 1a and the second conductive portion 2a are paired with each other, and the first conductive portion 1b and the second conductive portion 2b are paired with each other.

Alternatively, although not shown, the first conductive portion 1 and the second conductive portion 2 may have a cylindrical shape. Then, two pairs of cylindrical first conductive portions 1 and second conductive portions 2 may be provided on the bottom surface of the circular bulk portion 14 of the lighting device 100e.

Further, although not shown, a hole may be provided in the bulk portion 14, and the first conductive portion 1, the second conductive portion 2 and the boosting portion 5 may be connected by a conducting wire or the like through the hole.

For the other shapes of the bulk portion 10 of the lighting device 100e, the description of the lighting device 100c can be adopted within a necessary range.

The lighting device 100e can be installed floating on the surface of water or the like. Then, when the first conductive portion 1 and the second conductive portion 2 provided on the bottom surface of the bulk portion 14 come into contact with the medium, the light emitting portion 6 emits light.

FIG. 9 is a diagram showing an example of a lighting device according to an embodiment of the present invention. As shown in the figure, the lighting device 100f includes a first conductive unit 1, a second conductive unit 2, a boosting unit 5, and a light emitting unit 6. Further, the lighting device 100f includes a main body portion 10 including a boosting section 5, and a connecting section 11 for connecting the light emitting section 6 and the main body section 10. Further, the lighting device 100f includes a protrusion 13 shaped like a protrusion.

As shown in the figure, the lighting device 100f is provided with a protrusion 13 at the bottom of the main body 10. The surface of the protrusion 13 is provided with the first conductive portion 1 and the second conductive portion 2 so as not to come into contact with each other.

As for the shape of the main body 10 of the lighting device 100f, the description of the lighting device 100a can be adopted within a necessary range. Further, the material of the main body 10 of the lighting device 100f may be one that floats on water or the like. For example, polyethylene, ethylene-vinyl acetate copolymer resin, polypropylene, or the like can be used as the material of the main body 10 of the lighting device 100f. Alternatively, the material of the main body 10 of the lighting device 100f may be such that the lighting device 100f can be installed at a predetermined depth in water. In this case, for example, as the material of the main body 10 of the lighting device 100f, a material having a specific gravity suitable for the water depth in which the lighting device 100f is installed can be used.

Further, the shapes of the first conductive portion 1 and the second conductive portion 2 and the protrusion 13 of the lighting device 100f can adopt the description of the lighting device 100c within a necessary range.

In FIG. 9, the connection portion 11 of the lighting device 100f is provided on the upper portion of the main body portion 10. A light emitting portion 6 is provided at the tip of the connecting portion 11 opposite to the main body portion 10.

As for the shape of the connection portion 11 of the lighting device 100f, the description of the lighting device 100a and the lighting device 100b can be adopted within a necessary range. Further, the material of the connection portion 11 of the lighting device 100f may be one that floats on water or the like. For example, polyethylene, ethylene-vinyl acetate copolymer resin, polypropylene, or the like can be used as the material of the connection portion 11 of the lighting device 100f. Alternatively, the material of the connection portion 11 of the lighting device 100f may be such that the lighting device 100f can be installed at a predetermined water depth in the water. In this case, for example, as the material of the connection portion 11 of the lighting device 100f, a material having a specific gravity suitable for the water depth in which the lighting device 100f is installed can be used.

The lighting device 100f can be installed floating on the surface of the water so that the protrusion 13 is in the water and the main body 10 is on the water. Alternatively, the lighting device 100f can be installed at a predetermined water depth in the water. Then, when the first conductive portion 1 and the second conductive portion 2 provided on the protrusion 13 come into contact with the medium, the light emitting portion 6 emits light.

FIG. 10 is a diagram showing an example of a lighting device according to an embodiment of the present invention. As shown in the figure, the illuminating device 100g includes a first conductive unit 1, a second conductive unit 2, a boosting unit 5, and a light emitting unit 6. Further, the lighting device 100g includes a main body portion 10 having a boosting section 5 and a bulk section 14 covering the light emitting section 6. Further, the lighting device 100g includes a protrusion 13 shaped like a protrusion, an insulating portion 7 which is an insulator, and a hanging portion 16 for suspending the lighting device 100g.

As shown in the figure, the main body 10 of the lighting device 100 g is cylindrical. A cylindrical first conductive portion 1 and a second conductive portion 2 are provided up and down on the surface around the cylindrical main body portion 10 so as not to come into contact with each other. Further, a cylindrical insulating portion 7 is provided between the cylindrical first conductive portion 1 and the second conductive portion 2. Since the insulating portion 7 is provided between the first conductive portion 1 and the second conductive portion 2, the first conductive portion 1 and the second conductive portion 2 do not come into contact with each other, and the columnar main body portion 10 is provided. It is possible to prepare up and down on the surface around the.

The material of the insulating portion 7 is not particularly limited as long as it is an insulator. For example, as the material of the insulating portion 7, a synthetic resin such as phenol resin, melamine resin, urea resin, alkyd resin, epoxy resin, polyurethane, polyethylene, polypropylene, acrylic resin, and polycarbonate can be used.

Alternatively, although not shown, the illuminating device 100 g is provided with a tubular body on the surface around the cylindrical main body portion 10, and the sheet-shaped first conductive portion 1 and second conductive portion are provided on the inner surface of the tubular body. The unit 2 may be provided.

Two or more pairs of the first conductive portion 1 and the second conductive portion 2 in the form of a sheet may be provided on the inner surface of the tubular body. When two or more pairs of sheet-shaped first conductive portions 1 and second conductive portions 2 are provided, the heights of the pairs of the first conductive portions 1 and the second conductive portions 2 are provided so as to be different from each other. It may be that.

When the height of the pair of the first conductive portion 1 and the second conductive portion 2 is provided so as to be different, when the medium 4 such as water accumulates in the bulk portion 14 of the lighting device 100 g as described later. In addition, the pair of the first conductive portion 1 and the second conductive portion 2 provided in the lower place is brought into contact with the medium 4 in this order. Then, as the amount of the medium 4 accumulated in the bulk portion 14 increases, the number of pairs of the first conductive portion 1 and the second conductive portion 2 in contact with the medium 4 increases, and more electric power can be obtained. ..

Further, the sheet-shaped first conductive portion 1 and second conductive portion 2 may be provided on the outer surface of the tubular body.

The material of the tubular body may be an insulator. As the material of the tubular body, the above-mentioned description of the material of the insulating portion 7 can be adopted to the extent necessary.

As described above, the first conductive portion and the second conductive portion are in the shape of a sheet, the lighting device is provided with a tubular body, and the sheet-shaped first conductive portion and the second conductive portion are on the inner surface of the tubular body. By providing the above, it is possible to efficiently contact the first conductive portion and the second conductive portion even with a small amount of medium.

Although not shown, a hole may be provided in the main body portion 10, and the first conductive portion 1, the second conductive portion 2 and the boosting portion 5 may be connected by a conducting wire or the like through the hole.

For the other shapes of the main body 10 of the lighting device 100g, the description of the lighting device 100a can be adopted within a necessary range.

Further, as shown in the figure, a protrusion 13 is provided on the bottom of the main body 10 of the lighting device 100 g. A light emitting unit 6 is provided on the upper portion of the main body portion 10 of the lighting device 100 g.

As for the shape of the protrusion 13 of the lighting device 100g, the description of the lighting device 100c can be adopted within a necessary range.

As shown in the figure, the bulk portion 14 of the lighting device 100 g covers the light emitting portion 6, the main body portion 10, and the protrusion portion 13. In FIG. 10, the bulk portion 14 of the lighting device 100 g has an inverted conical shape. Water collects in the inverted conical cap 14 when it rains or the like. Then, the water accumulated in the bulk portion 14 comes into contact with the first conductive portion 1 and the second conductive portion 2, so that the light emitting portion 6 emits light.

A hole 21 is provided in the bulk portion 14 of the lighting device 100 g. By providing the hole 21 in the cap portion 14, the water accumulated in the cap portion 14 is drained from the hole 21, and it is possible to prevent the entire cap portion 14 from being filled with water.

For the other shapes of the bulk portion 14 of the lighting device 100g, the description of the lighting device 100c can be adopted within a necessary range.

As shown in the figure, the lighting device 100g is provided with a hanging portion 16 on the upper portion of the bulk portion 14. Since the lighting device 100g includes a hanging portion 16, it is easy to suspend and install it on a tree, a beam, or the like.

The shape of the hanging portion 16 is not particularly limited, as long as it is possible to suspend 100 g of the lighting device. For example, the shape of the hanging portion 16 may be a string shape, a chain shape, a rod shape, or the like.

The length of the hanging portion 16 is not particularly limited, and is preferably an appropriate length depending on the place where the lighting device 100 g is installed.

The material of the hanging portion 16 is not particularly limited. For example, as the material of the hanging portion 16, metal such as stainless steel and aluminum, linen, cotton, chemical fiber, leather and the like can be used.

The lighting device 100f can be suspended and installed on a tree, a beam, or the like by using the hanging portion 16. Then, when the first conductive portion 1 and the second conductive portion 2 come into contact with the medium, the light emitting portion 6 emits light.

FIG. 11 is a diagram showing an example of a lighting device according to an embodiment of the present invention. As shown in the figure, the lighting device 100h includes a first conductive unit 1, a second conductive unit 2, a boosting unit 5, and a light emitting unit 6. Further, the lighting device 100h includes a main body unit 10 including a boosting unit 5. Further, the lighting device 100h includes an insulating portion 7 which is an insulator and a hanging portion 16 for suspending the lighting device 100h.

As shown in the figure, the bottom of the main body 10 of the lighting device 100h is provided with a first conductive portion 1, a second conductive portion 2, and an insulating portion 7. In FIG. 11, the first conductive portion 1 and the second conductive portion 2 have a cylindrical shape. A sheet-shaped insulating portion 7 is provided between the first conductive portion 1 and the second conductive portion 2. When it rains or the like, water runs down the insulating portion 7, so that the first conductive portion 1 and the second conductive portion 2 come into contact with the water, and the light emitting portion 6 emits light.

The main body 10 of the lighting device 100h is provided with a booster 5 and a light emitting unit 6. The light emitting portion 6 is provided so as to emit light toward the insulating portion 7, and the insulating portion 7 diffuses the light.

As the material of the insulating part 7, the description of the lighting device 100 g can be adopted within the necessary range. However, the insulating portion 7 of the lighting device 100h is preferably made of a material having water absorption. Since the insulating portion 7 is made of a water-absorbent material, the first conductive portion 1 and the second conductive portion 2 can be efficiently in contact with water.

Although not shown, the main body portion 10 is provided with a hole, and the first conductive portion 1, the second conductive portion 2 and the boosting portion 5 may be connected by a conducting wire or the like through the hole.

As for the shape of the main body 10 of the lighting device 100h, the description of the lighting device 100a can be adopted within a necessary range.

Further, a hanging portion 16 is provided on the upper portion of the main body portion 10 of the lighting device 100h. As for the shape of the hanging portion 16, the description of the lighting device 100 g can be adopted within a necessary range.

The lighting device 100f can be suspended and installed on a tree, a beam, or the like by using the hanging portion 16. Then, when the first conductive portion 1 and the second conductive portion 2 come into contact with the medium, the light emitting portion 6 emits light.

In the embodiment of the present invention, the "conductive portion" may be, for example, a member that can be energized, regardless of the material. The "functional unit" means, for example, a unit that performs a predetermined function by passing an electric current. The function may be one that converts electricity into energy such as light or heat, or one that controls a circuit.

In the embodiment of the present invention, the "boosting circuit" means, for example, a circuit that boosts and outputs an input voltage. The “step-down circuit” refers to, for example, a circuit that steps down an input voltage and outputs it. The "conductive polymer" refers to, for example, a polymer compound having electrical conductivity. "Carbon" refers, for example, carbon fiber having conductivity. "Integral configuration" means, for example, joining different objects together, more specifically, bonding with an adhesive, mechanical joining using other members, welding, crimping, etc., chemically and. / Or joining by physical force.

[Reference example]
Hereinafter, reference examples according to the embodiment of the present invention will be described. The present invention is not limited to these reference examples.

(Reference example 1)
The following tests were performed at normal temperature and pressure. A circuit including the first conductive section 1, the second conductive section 2, the functional section 3, and the medium 4 shown in FIG. 1 was used. A stainless steel (austenite, SUS304 series) plate-shaped member (0.5 mm thickness, 10 cm × 15 cm) is used as the first conductive portion 1, and a galvanized steel plate (iron) plate-shaped member is used as the second conductive portion 2. Using (0.5 mm thickness, 10 cm × 15 cm), the first conductive portion 1, the second conductive portion 2 and the functional portion 3 were connected by copper conductors, respectively. The functional unit 3 includes a power consumption unit, an output voltage conversion unit, and a control unit. Further, the input impedance was 1 kΩ or more, and the one having a non-linear current-voltage characteristic was used. For the power consumption unit, an LED bulb that lights up when a current of 2 mA or more flows is used. The booster circuit shown in FIG. 2A was used for the output voltage conversion unit.

The first conductive unit 1 was connected to the input terminal A1 of the booster circuit of the output voltage conversion unit, and the output terminal B1 of the booster circuit was connected to the LED bulb. Further, the second conductive portion 2 is connected to the input terminal A2 of the booster circuit, and the output terminal B2 of the booster circuit is connected to the terminal opposite to the terminal connected to the output terminal B1 of the LED bulb. ..

Pure water (high-purity purified water manufactured by Furukawa Yakuhin Kogyo Co., Ltd., temperature 25 degrees: medium 4) up to a height of 7.5 cm in an acrylic container (cube with an outer diameter of 15 cm x 15 cm x 15 cm, inner diameter of 14.5 cm). The circuit was constructed by immersing the first conductive portion 1 and the second conductive portion 2. The first conductive portion 1 and the second conductive portion 2 are non-contact, the distance between the first conductive portion 1 and the second conductive portion 2 is 12 cm, and the plate-like shape of the first conductive portion 1 and the second conductive portion 2 is formed. It was installed so that the planes were parallel.

For the constructed circuit, the voltage between the first conductive part 1 and the second conductive part 2 was measured (measurement 1). A 34401A multimeter manufactured by Agilent Technologies was used for the measurement. The results are shown in Table 1. In the circuit shown in Example 1, the LED bulb repeatedly blinked every 270 to 330 seconds. That is, it was confirmed that electricity was generated from the first conductive portion 1 and / or the second conductive portion 2.

Next, soak the first conductive part 1 and the second conductive part 2 in an acrylic container (cube with an outer diameter of 15 cm × 15 cm × 15 cm, an inner diameter of 14.5 cm) to a height of 7.5 cm, and pure water (Furukawa Yakuhin Kogyo). High-purity purified water manufactured by Co., Ltd., temperature 25 degrees: medium 4) was put in, and the first conductive part 1 and the second conductive part 2 were immersed. The first conductive portion 1 and the second conductive portion 2 are non-contact, the distance between the first conductive portion 1 and the second conductive portion 2 is 12 cm, and the plate-like shape of the first conductive portion 1 and the second conductive portion 2 is formed. The planes were installed so as to be parallel. Further, the first conductive portion 1 and the second conductive portion 2 are not electrically connected. Then, the voltage between the first conductive portion 1 and the second conductive portion 2 was measured using the 34401A multimeter (measurement 2). Further, in this state, the resistance value of the medium 4 between the first conductive portion 1 and the second conductive portion 2 was measured (measurement 3).

(Reference example 2)
Measurements 1 to 3 were carried out in the same manner as in Reference Example 1 except that the medium 4 was changed to soil (manufactured by Protoleaf Co., Ltd., soil of foliage plants). The results are shown in Table 1. In the circuit shown in Reference Example 2, the LED bulbs repeatedly blinked at approximately equal intervals every 21 to 23 seconds. That is, it was confirmed that electricity was generated from the first conductive portion 1 and / or the second conductive portion 2.

(Reference example 3)
A waste cloth dipped in an aqueous solution of 50 g of pure water (same as that of Reference Example 1) and 5 g of salt (manufactured by Hakata Salt Co., Ltd., Hakuho's salt) is placed in contact with the medium 4 in the first conductive portion 1 and the second. Same as Reference Example 1 except that the medium 4 is attached to the surface of the conductive portion 2 and the medium 4 is changed to sand (manufactured by Toyo Materan Co., Ltd., silica sand having a particle size peak (weight ratio) of about 0.9 mm). , Measurements 1 to 3 were carried out. The results are shown in Table 1. In the circuit shown in Reference Example 3, the LED bulb repeatedly blinked every 80 to 100 seconds. That is, it was confirmed that electricity was generated from the first conductive portion 1 and / or the second conductive portion 2.

1 first conductive part, 2 second conductive part, 3 functional part, 4 medium, 5 booster part, 6 light emitting part, 7 insulation part, 10 main body part, 11 connection part, 12 support part, 13 protrusion part, 14 bulk part , 15 inclined part, 16 hanging part, 20 threaded part, 21 hole, 100 lighting device

Claims (11)

1. The first conductive part and the second conductive part,
   Booster and
   Equipped with a light emitting part
   The first conductive part and the boosting part are connected,
   The second conductive part and the boosting part are connected,
   The first conductive part and the second conductive part are not in contact with each other.
   The booster and light emitting part are connected,
   When the first conductive part and the second conductive part come into contact with the medium, the light emitting part emits light.
   Lighting equipment.
2. The medium is not an electrolyte,
   The lighting device according to claim 1.
3. The shape of the first conductive part and the second conductive part is rod-shaped,
   The lighting device according to claim 1 or 2.
4. The shape of the first conductive part and the second conductive part is rod-shaped,
   A threaded portion that has been threaded is provided at the tips of the first conductive portion and the second conductive portion.
   The first conductive part and the second conductive part are connected to the boosting part through the threaded part.
   The lighting device according to any one of claims 1 to 3.
5. The shape of the first conductive part and the second conductive part is a sheet shape.
   The lighting device according to any one of claims 1 to 4.
6. The shape of the first conductive part and the second conductive part is sheet-like,
   The first conductive part and the second conductive part are inclined in the vertical direction,
   The distance between the lower end of the first conductive portion and the lower end of the second conductive portion is 10 mm or less.
   The lighting device according to any one of claims 1 to 5.
7. The shape of the first conductive part and the second conductive part is sheet-like,
   The lighting device has a cylindrical body,
   A sheet-shaped first conductive portion and second conductive portion are provided on the inner surface of the tubular body.
   The lighting device according to any one of claims 1 to 6.
8. The lighting device
   The main body with a booster and
   Equipped with a connection part that connects the light emitting part and the main body part,
   The connection part
   Made of flexible material,
   The lighting device according to any one of claims 1 to 7.
9. The diameter of the connection is
   Smaller than the diameter of the light emitting part,
   The lighting device according to claim 8.
10. The booster is equipped with a control unit,
    The control unit
    A light emitting changing means for changing the light emitting color, the light emitting intensity, and / or the light emitting frequency of the light emitting unit with time is provided.
    The lighting device according to any one of claims 1 to 9.
11. It is a lighting method equipped with a lighting device.
    The lighting device
    The first conductive part and the second conductive part,
    Booster and
    Equipped with a light emitting part
    The first conductive part and the boosting part are connected,
    The second conductive part and the boosting part are connected,
    The first conductive part and the second conductive part are not in contact with each other.
    The booster and light emitting part are connected,
    When the first conductive part and the second conductive part come into contact with the medium, the light emitting part emits light.
    Lighting method.

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