Housing with mirror and method for supplying power

Abstract

To save time and effort for replacement and charging of an electric cell and lessen deterioration in usability.SOLUTION: A housing with a mirror includes: a light-emitting device installed in the vicinity of a peripheral part of a mirror; a power supply unit that receives electrical power supplied from a power feeding device, which is provided on the outside, in a wireless manner via an antenna part; and a lightning circuit for lighting the light-emitting device by supplying the light-emitting device with power supplied from the power supply unit.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a mirrored housing and a power supply method. [Background technology]

[0002] Conventionally, mirrors have been used for a variety of purposes. For example, when applying makeup, people generally do so while looking at a mirror such as a three-way mirror or a compact mirror. Such mirrors are sometimes equipped with lighting around them. By turning on the lighting, it is possible to ensure brightness even in dim surroundings, allowing people to fix their makeup or improve their appearance while looking at the mirror. When a compact mirror is equipped with lighting, a battery is provided in the compact mirror, and power is supplied to the lighting from the battery (for example, Patent Document 1). Furthermore, if a battery is not used, the compact mirror can be equipped with a USB terminal, and the lighting can be turned on by supplying power to the lighting device from an external electronic device via a USB cable. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2000-125933 Summary of the Invention [Problem to be solved by the invention]

[0004] However, if a compact mirror is equipped with a battery, the light cannot be turned on when the battery runs out of power. In this case, the light can be turned on by replacing the battery, but this requires the effort of replacing the battery. Furthermore, if a rechargeable battery is used as the battery, there is no need to replace the battery if it can be charged, but once the charge runs out, the light cannot be turned on and the effort of charging it is required. Furthermore, if a battery or rechargeable battery is used, space must be secured in the compact mirror to accommodate the battery or rechargeable battery, making it difficult to make the mirror smaller. Furthermore, if power is supplied from an external source via a USB port, batteries are not required, eliminating the need for battery replacement. However, since power must be supplied by connecting a cable to the compact mirror's USB port, the compact mirror can only be used within the reach of the cable, reducing its usability.

[0005] The present invention has been made in consideration of the above circumstances, and its purpose is to provide a mirrored housing and a power supply method that can eliminate the need for battery replacement and charging, and reduce the reduction in usability. [Means for solving the problem]

[0006] In order to solve the above-mentioned problems, one aspect of the present invention is a mirrored housing having a light-emitting element arranged near the periphery of the mirror, a power supply unit that receives power supplied wirelessly from an external power supply device via an antenna unit, and a lighting circuit that lights up the light-emitting element by supplying the power supplied from the power supply unit to the light-emitting element.

[0007] Another aspect of the present invention is a power supply method for a housing with a mirror, which receives power supplied wirelessly from an external power supply device via an antenna unit, and supplies power supplied from a power supply unit to a light-emitting element provided near the peripheral edge of the mirror, thereby lighting the light-emitting element. [Effects of the Invention]

[0008] As described above, according to the present invention, it is possible to eliminate the trouble of replacing and charging the battery, and to reduce the deterioration of usability. [Brief explanation of the drawings]

[0009] [Figure 1] 1 is a perspective view illustrating the appearance of a mirrored housing C according to an embodiment of the present invention. [Figure 2] FIG. 10 is a functional block diagram showing the general functions of a mirrored housing C. [Figure 3] 2 is a diagram showing an example of the configuration of an electrical board 30. FIG. [Figure 4A] 10 is a diagram showing the configuration at a stage before the mirror M, the electrical board 30, and the lid portion Cb are stacked together. [Figure 4B] 10 is a diagram showing a configuration in which a mirror M, an electrical board 30, and a cover Cb are stacked together. [Figure 5] 10 is a flowchart illustrating the operation of the mirrored housing C. [Figure 6] FIG. 10 is a diagram showing an example of a circuit configuration in the case where a rectifier circuit 122 is provided outside an IC chip 12a. [Figure 7] 10 is a schematic functional block diagram illustrating another configuration of the operating element 13A and the lighting circuit 21A. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0010] A mirrored housing according to an embodiment of the present invention will be described below with reference to the drawings. The mirrored housing has a variety of uses, and can be used as a compact mirror, an interior mirror, or any other mirror. FIG. 1 is a perspective view showing the appearance of a mirrored housing C according to an embodiment of the present invention. The mirrored housing C is equipped with an NFC (Near Field Communication) tag with an LED (Light Emitting Diode). The housing of the mirrored housing C is configured by connecting a main body Ca and a lid Cb via a connecting portion Cc. The connecting portion Cc is, for example, a hinge. The lid Cb is connected to the main body 2 so as to be rotatable around the connecting portion Cc. This allows the user to open and close the lid Cb as needed. Furthermore, the angle of the lid Cb relative to the main body Ca can be maintained in an open state up to any angle.

[0011] The main body Ca houses an IC chip 12 and an antenna unit 11.

[0012] The antenna unit 11 receives and transmits radio waves for wireless communication with an external electronic device T. The electronic device T has a function of contactlessly supplying power by outputting radio waves, and functions as a power supply device. The electronic device T may be a smartphone, a reader that communicates with RFID via NFC communication, or the like. When the electronic device T supplies power to the mirror housing C by NFC communication between the electronic device T and the mirror housing C, the mirror housing C may be placed on top of the electronic device T, or the distance between the electronic device T and the mirror housing C may be set within a distance that allows transmission via NFC (for example, within about 5 centimeters).

[0013] The IC chip 12 is connected to the antenna unit 11 and has the function of communicating with the electronic device T via the antenna unit 11 . The IC chip 12 functions as a power supply unit. The combination of the antenna unit 11 and the IC chip 12 constitutes an NFC tag. Since an NFC tag can be used, any of various IC chips can be applied to the mirrored housing C as long as they are NFC-compatible IC chips.

[0014] The lid Cb has a first main surface Ca1 that faces the lid Cb when the lid Cb is closed, and a second main surface Ca2 that is the main surface opposite the first main surface. A recess may be provided in the first main surface Ca1 so that cosmetics can be stored therein. The second main surface Ca2 can be placed on a placement surface. The placement surface may be any surface on which the mirrored housing C can be placed, such as a desk, table, stand, electronic device T, etc.

[0015] The cover Cb is provided with a mirror M, a light emitting element 20, and a lighting circuit 21. The mirror M is made of a transparent, smooth material with a mirror surface formed on it, and is capable of reflecting the user's face, etc. The light emitting element 20 emits light upon receiving power supply from the lighting circuit 21. The light emitting element 20 may be, for example, an LED. The lighting circuit 21 is a supply path for supplying power supplied from the IC chip 12 to the light-emitting element 20, and lights up the light-emitting element 20 by supplying the power. The lighting circuit 21 can use a flexible substrate (FPC (Flexible Printed Circuits)) provided with wiring, and is connected so that power can be supplied from the power supply unit 121 to the light-emitting element 20. A part of the lighting circuit 21 extends from the cover portion Cb via the connecting portion Cc to reach the IC chip 12 in the main body portion Ca, and is connected to the IC chip 12.

[0016] When a flexible substrate is used as the lighting circuit 21, even when the lid Cb is opened or closed, the flexible substrate bends in the opening and closing direction in response to the opening and closing operation, thereby maintaining an electrical connection between the IC chip 12 and the lighting circuit 21. The flexible substrate is bendable, and its electrical characteristics do not change even when it is bent in response to the opening and closing of the lid Cb, and it has flexibility that allows it to withstand the opening and closing operation. Therefore, by connecting via the flexible substrate, it is possible to maintain a state in which power can be supplied from the power source unit to the light-emitting element 20, even if the power source unit (IC chip 12) and the light-emitting element 20 are not formed on the same plane.

[0017] FIG. 2 is a functional block diagram showing the general functions of the mirrored housing C. The mirrored housing C includes a light module LM. The light module LM is a module that has the function of emitting light by contactless power supply via NFC communication. The light module LM includes an antenna unit 11, an IC chip 12, an operator 13, a light emitting element 20, and a lighting circuit 21.

[0018] The antenna unit 11 is electrically connected to the IC chip 12 .

[0019] The IC chip 12 includes a power supply unit 121 , a rectifier circuit 122 , and a control unit 123 . The power supply unit 121 receives power wirelessly from an external electronic device T via the antenna unit 11 and generates power. The power supply unit 121 receives power via an antenna from an electronic device that performs short-range wireless communication by NFC communication. The power supply unit 121 has a rectifier circuit that rectifies the AC power supplied via the antenna unit 11. When the power supply unit 121 has a rectifier circuit, that is, when the rectifier circuit is provided inside the IC chip 12 , it is not necessary to provide a rectifier circuit outside the IC chip 12 .

[0020] The control unit 123 acquires a control signal supplied from the electronic device T via the antenna unit 11, the control signal including an instruction to turn on or off the light-emitting element 20, and turns on or off the light-emitting element 20 in accordance with the acquired control signal. In addition, the control unit 123 may be connected so as to be able to acquire the operation content of the operator 13, and may be configured to light up the light-emitting element to a brightness corresponding to an instruction to adjust the brightness input from the operator 13.

[0021] In addition, the control unit 123 may acquire a control signal supplied from the electronic device T, which includes an instruction to turn on or off the light-emitting element 20, and turn on or off the light-emitting element 20 according to the acquired control signal. Furthermore, the control unit 123 acquires a control signal output in accordance with the timing at which the smartphone outputs content, and turns on or off the light-emitting element 20 in accordance with the acquired control signal.

[0022] The operation element 13 is provided somewhere on the compact mirror and adjusts the brightness of the light emitting element. The operation element 13 may be a touch panel or a switch that can be operated by pressing it.

[0023] The lighting circuit 21 supplies the light emitting element 20 with the power supplied from the power supply unit 121, thereby lighting the light emitting element 20.

[0024] The light-emitting element 20 lights up in response to the power supplied from the lighting circuit 21. When the light-emitting element 20 lights up, it can illuminate the face of the user when the user uses the mirrored housing C, thereby reducing the possibility of a shadow being cast on the face.

[0025] FIG. 3 is a diagram showing an example of the configuration of the electrical board 30. As shown in FIG. The electrical board 30 is rectangular, and a plurality of light-emitting elements 20 are arranged at intervals near the ends in the longitudinal direction. Here, a plurality of light-emitting elements 20 are arranged along the upper end, and a plurality of light-emitting elements 20 are arranged along the lower end. An IC chip 12 is mounted on the electrical board 30 at approximately the center in the lateral direction. An antenna wire of the antenna unit 11 is arranged between the IC chip 12 and the light-emitting elements 20 and is connected to the IC chip 12. The IC chip 12 and the light-emitting elements 20 are connected via wiring of a lighting circuit 21. Here, the wiring of the lighting circuit 21 is connected to the IC chip 12 so that the plurality of light-emitting elements 20 arranged above and the plurality of light-emitting elements 20 arranged below are in parallel. The lighting circuit 21 is capable of lighting up the plurality of light-emitting elements 20. Here, a rectifier circuit 122 is provided inside the IC chip 12.

[0026] FIG. 4 is a diagram showing an example of the configuration of components provided on the cover Cb of the mirrored housing C. Fig. 4A is a diagram showing the configuration before the mirror M, the electrical board 30, and the lid Cb are stacked together. Fig. 4B is a diagram showing the configuration after the mirror M, the electrical board 30, and the lid Cb are stacked together. Openings Ma are provided on the periphery of the mirror M. Here, a plurality of openings Ma are provided at intervals along the upper end Ea of the periphery of the mirror M, and a plurality of openings Ma are provided at intervals along the lower end Eb. The number and positions of these openings Ma correspond to the number and positions of the light-emitting elements 20 provided on the electrical board 30. As shown in Fig. 4A, the electrical board 30 is placed on the cover Cb, and the mirror M is placed on the electrical board 30. Here, the light-emitting elements 20 are arranged on the electrical board so that when the mirror M is placed on the electrical board 30, each light-emitting element 20 is positioned at the opening Ma. In addition, the height of the tip of each light-emitting element 20 may be set to be the same as the height of the surface of the mirror M (the surface that can reflect an object).

[0027] Here, the IC chip 12, lighting circuit 21, and light-emitting element 20 are mounted on the electrical board 30, and are configured to overlap the mirror M, so that an NFC tag can be provided on the rear side of the mirror surface of the mirror M. Here, the combination of the antenna unit 11 and the IC chip 12 corresponds to the NFC tag. Furthermore, since an NFC tag can be provided on the back side of the mirror M, there is no need to provide an IC chip 12 or the like inside the main body of the mirrored housing C, and therefore there is no need to provide an electrical board 30 or the like in the main body. Furthermore, because NFC tags are generally approximately flat and small, they can be mounted in a smaller mounting space than when a battery or USB terminal is provided in the mirror housing C. This prevents the mirror housing C from becoming larger. Furthermore, since models of smartphones, reader / writers, and the like equipped with a function capable of NFC communication are becoming widespread, power can be supplied from such general electronic devices. In particular, since many users own smartphones, power can be supplied from a smartphone that the user already owns, rather than from a special device for powering the mirror housing C, which is convenient to use.

[0028] According to the embodiment described above, power is supplied to the mirror housing C from the electronic device T via contactless power supply, so power can be received by using an electronic device T such as a smartphone, reader / writer, etc. Furthermore, there is no need to provide a battery in the mirror housing C, and there is also no need to provide a USB terminal for receiving power. This eliminates the need for space to provide a battery, and also avoids the restriction on the location where the mirror housing C can be used due to the need to connect a cable. Furthermore, there is no need to worry about running out of battery or forgetting to charge it.

[0029] Furthermore, in the above-described embodiment, even if no operation input is made via a switch or the like to turn on the light-emitting element 20, the light-emitting element 20 can be turned on by supplying power to the light-emitting element 20 in response to power being supplied from the electronic device T. This makes it possible to supply power to the mirrored housing C and cause the light-emitting element 20 to emit light without inputting a command from the electronic device T or via dedicated application software in the electronic device T.

[0030] In the above-described embodiment, the printed circuit board on which the light-emitting element 20 is mounted is provided on the rear side of the mirror M, and is therefore positioned at an opening in the mirror M. The light-emitting element 20 only needs to be provided near the peripheral edge of the mirror M, and may also be provided along the outer periphery of the mirror M, at the edge of the lid portion Cb.

[0031] FIG. 5 is a flowchart illustrating the operation of the mirrored housing C. If the IC chip 12 has not received radio waves for NFC communication via the antenna unit 11 (step S101-NO), it does not start operation, but if it has received radio waves for NFC communication (step S101-YES), it receives the radio waves supplied by NFC communication via the antenna unit 11 (step S102).The IC chip 12 then generates power from the received radio waves using the power supply unit 121, rectifies the generated power using the rectifier circuit 122, and supplies the power to the light-emitting element 20 via the lighting circuit 21 (step S103), thereby lighting up the light-emitting element 20 (step S104).

[0032] Then, the IC chip 12 determines whether or not an operational input has been made from the operator 13 (step S105). If no operational input has been made (step S105-NO), the IC chip 12 maintains the brightness that lights up the light-emitting element 20, and if the supply of power through NFC communication has stopped (step S107-YES), the IC chip 12 ends the processing. Accordingly, the supply of power from the IC chip 12 to the light-emitting element 20 also stops, so the light-emitting element 20 goes out. If the supply of power through NFC communication continues (step S107-NO), the IC chip 12 proceeds to the processing at step S105 and determines whether or not an operational input has been made from the operator 13 (step S105).

[0033] When an operation input is received from the operation device 13 (step S105-YES), the IC chip 12 adjusts the brightness of the light-emitting element 20 and turns it on so that the brightness corresponds to the operation content (step S106). For example, when an operation input is received from a button corresponding to "increase brightness," the IC chip 12 controls the brightness to increase, and when an operation input is received from a button corresponding to "decrease brightness," the IC chip 12 controls the brightness to decrease. This allows the user to increase or decrease the brightness of the light-emitting element 20 according to the ambient brightness. Furthermore, in step S105, with regard to the operation input from the operator 13, when an operation input for changing the brightness such as "increase brightness" or "decrease brightness" is made, the brightness of the light-emitting elements 20 is changed as described above. However, instead of changing the brightness, the number of light-emitting elements 20 that are turned on may be changed. For example, when an operation input for "increase brightness" is made, the number of light-emitting elements 20 that are turned on may be increased, and when an operation input for "decrease brightness" is made, the number of light-emitting elements 20 that are turned on may be decreased.

[0034] Furthermore, in the above-described embodiment, a case has been described in which an operation input for changing the brightness is received from the operation device 13, but an operation input for "turning off" may also be received from the operation device 13. In this way, when it is not necessary to turn on the light-emitting element 20, it can be turned off in response to an instruction from the user. Furthermore, in the above-described embodiment, the IC chip 12 may supply power to the light-emitting element 20 via the lighting circuit 21 using power supplied via NFC communication, and may also control the light emission of the light-emitting element 20 based on a control signal output from the electronic device T via NFC communication. For example, when the IC chip 12 receives a control signal from the electronic device T indicating an instruction to turn on or off the light-emitting element 20, the IC chip 12 may turn on or off the light-emitting element 20 in response to the control signal. The control signal may also be an instruction to increase or decrease the brightness. In this way, by turning on or off the light-emitting element 20 or changing the brightness based on the control signal from the electronic device T, it becomes possible to operate the electronic device T from the electronic device T even if various controls 13 are not provided on the mirrored housing C.

[0035] In the above-described embodiment, the IC chip 12 is described as having a rectifier circuit, but when using an IC chip that does not have a rectifier circuit, rectification can be achieved by providing a rectifier circuit outside the IC chip. 6 is a diagram showing an example of a circuit configuration in which a rectifier circuit 122 is provided outside the IC chip 12a. The IC chip 12a has the same functions as the IC chip 12, except that it does not have the rectifier circuit 122 of the IC chip 12. A first terminal of the rectifier circuit 122 is connected to the IC chip 12a, and the other terminal, a second terminal, is connected to the lighting circuit 21. The rectifier circuit 122 rectifies the power supplied to each light-emitting element 20 from the IC chip 12a. In this way, when using an IC chip 12a that does not have a rectifier circuit, by providing a rectifier circuit 122 outside the IC chip 12a, even an IC chip that is capable of communicating via NFC and does not have a rectifier circuit can be used in the mirrored housing C.

[0036] In the above-described embodiment, the mirror-equipped housing C may be foldable or may have a non-foldable shape like a hand mirror. Furthermore, the mirror-equipped housing C may be set to any size as long as it is portable.

[0037] In the above-described embodiment, the electronic device T supplies power to the mirrored housing C via NFC communication, but the present invention is not limited to NFC communication as long as power can be supplied in a contactless manner.

[0038] Furthermore, in the above-described embodiment, when supplying power to the mirror-equipped housing C, the electronic device T may output content from at least one of the display screen and the speaker of the electronic device T. This allows a user to enjoy listening to music while using the mirror-equipped housing C to put on makeup, etc.

[0039] Furthermore, in the above-described embodiment, the mirrored housing C may be configured to change the brightness of the light-emitting element 20 in response to an operation input from the operation device 13 while the light-emitting element 20 is turned on. This allows the user to adjust the brightness to any desired brightness.

[0040] Next, other configurations of the operating element 13 and the lighting circuit 21 will be described. FIG. 7 is a schematic functional block diagram illustrating another configuration of the operating element 13A and the lighting circuit 21A. Operator 13A has switch 13a, and can switch the connection path between contact 13b and contact 13c depending on the operation of switch 13a. Furthermore, power supply path 13d on the upstream side of operator 13 is connected to the power supply path of IC chip 12. Switch 13a can be a physical switch, and may be, for example, a slide switch. The lighting circuit 21A includes a resistor 21b and a resistor 21c. A first connection terminal of the resistor 21b is connected to the contact 13b of the operator 13, and a first connection terminal of the resistor 21c is connected to the contact 13c of the operator 13. A second connection terminal of the resistor 21b and a second connection terminal of the resistor 21c are each connected to a connection point 21d of a supply path that shares power with the light-emitting element 20. The resistance values ​​of the resistors 21b and 21c are different.

[0041] When the user switches switch 13a of operator 13A to contact point 13b, power is supplied from IC chip 12 to light-emitting element 20 via contact point 13b and resistor 21b. Here, light-emitting element 20 can be illuminated with a brightness according to the resistance value of resistor 21b. Furthermore, when the user switches the switch 13a of the operator 13A to the contact 13c, the power supplied from the IC chip 12 is supplied to the light-emitting element 20 via the contact 13c and the resistor 21c. Here, the light-emitting element 20 can be illuminated with a brightness according to the resistance value of the resistor 21c. As a result, a resistor corresponding to the switching state of the switch 13a is selected depending on which position the switch 13a is switched to by the user, and power can be supplied to the light-emitting element 20 via the selected resistor, causing the light-emitting element 20 to emit light at a brightness corresponding to the connection state of the switch 13a. In this way, it is possible to adjust the brightness of the light-emitting element 20 using a physical switch.

[0042] The control unit 123 in the above-described embodiment may be implemented by a computer. In this case, a program for implementing this function may be recorded on a computer-readable recording medium, and the program may be loaded into a computer system and executed. The term "computer system" as used herein includes hardware such as an OS and peripheral devices. The term "computer-readable recording medium" refers to portable media such as flexible disks, optical magnetic disks, ROMs, and CD-ROMs, as well as storage devices such as hard disks built into a computer system. The term "computer-readable recording medium" may also include media that dynamically store programs for a short period of time, such as communication lines used when transmitting programs via networks such as the Internet or telephone lines, or media that store programs for a fixed period of time, such as volatile memory within a computer system serving as a server or client. The program may be a program that implements part of the above-described functions, or may be a program that can implement the above-described functions in combination with a program already stored in the computer system, or may be implemented using a programmable logic device such as an FPGA (Field Programmable Gate Array).

[0043] Although an embodiment of the present invention has been described above in detail with reference to the drawings, the specific configuration is not limited to this embodiment, and includes designs within the scope of the gist of the present invention. [Explanation of symbols]

[0044] 11 Antenna section 12,12a IC chip 13,13A Operator 13a Switch 13b, 13c contact points 13d Power supply path 20 Light-emitting element 21,21A lighting circuit 21b,21c resistance 21d Connection point 30 Electrical board 121 Power supply section 122 Rectifier circuit 123 Control Unit C. Mirrored enclosure Ca main body Ca1 First principal surface Ca2 2nd principal surface Cb lid part Cc connection part Ea,Eb end LM Light Module M mirror Ma opening T Electronic equipment

Claims

1. a light emitting element provided near the periphery of the mirror; a power supply unit that receives power wirelessly from an external power supply device via an antenna unit; a lighting circuit that lights up the light-emitting element by supplying power from the power supply unit to the light-emitting element; A mirrored housing having the same.

2. a control unit that receives a control signal, which is supplied from the power supply device, via the antenna unit and includes an instruction to turn on or off the light-emitting element, and turns on or off the light-emitting element in response to the received control signal; The mirrored housing according to claim 1 ,

3. an operator provided at any location on the mirrored housing to adjust the brightness of the light emitting element; a control unit that lights up the light emitting element to a luminance corresponding to an instruction to adjust the luminance via the operation element; The mirrored housing according to claim 1 ,

4. a plurality of the operation elements are provided, and each of the operation elements is connected to one of a plurality of resistors having different resistance values; When any one of the plurality of controls is operated, power is supplied to the light emitting element via a resistor connected to the operated control. The mirrored housing according to claim 3 .

5. The mirrored housing is a main body portion to be placed on a placement surface; a cover portion connected to the main body portion via a connecting portion and capable of being opened and closed; the lid portion is provided with the mirror and the light-emitting element, the antenna unit and the power supply unit are provided in the main body unit, The lighting circuit is a flexible substrate provided with wiring, and is connected so that power can be supplied from the power supply unit to the light emitting element. The mirrored housing according to claim 1 .

6. The light emitting element is mounted on an electrical circuit board, An opening is provided at the periphery of the mirror, The light-emitting element is disposed on the electrical board so that the light-emitting element is positioned in the opening when the mirror and the electrical board are overlapped. The mirrored housing according to claim 1 .

7. The power supply unit The power supply is received via an antenna from an electronic device that performs short-range wireless communication using NFC (Near Field Communication). The mirrored housing according to any one of claims 1 to 6.

8. the power supply device is a smartphone, The control unit The smartphone acquires a control signal output in accordance with a timing at which the smartphone outputs content, and turns on or off the light-emitting element in accordance with the acquired control signal. The mirrored housing according to claim 3 .

9. A power supply method for a mirrored housing, comprising: The power supply device receives power wirelessly from an external power supply device via an antenna unit. The light emitting element provided near the periphery of the mirror is turned on by supplying power from the power supply unit to the light emitting element. Power supply method.

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