Lighting and illuminating devices

Abstract

To provide a lighting device and an illuminating device capable of modulating light so as to have a desired brightness without using a dimming signal.SOLUTION: A lighting device comprises a lighting circuit, a storage unit, and a control unit. The lighting circuit turns on a light source with power supply from the exterior. The storage unit preliminarily stores a correspondence between an energization time from the power supply and a dimming degree of the light source. The control unit controls the lighting circuit to turn on the light source at the dimming degree corresponding to the energization time, on the basis of the correspondence.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] FIELD OF THE DISCLOSURE The present invention relates to a lighting device and a lighting apparatus. [Background technology]

[0002] Conventionally, there are lighting devices that adjust the light by transmitting a dimming signal for dimming via a wire or wirelessly (see Patent Document 1, etc.). For example, in a signal line type that provides stable dimming, dimming is achieved by sending a dimming signal from a light control to the lighting device via a dimming signal line. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2013-16289 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, in a lighting device that does not use a dimming signal, there is room for improvement in terms of dimming to achieve a desired brightness.

[0005] An object of the present invention is to provide a lighting device and an illumination device that can adjust the brightness to a desired brightness without using a dimming signal. [Means for solving the problem]

[0006] A lighting device according to an embodiment includes a lighting circuit, a storage unit, and a control unit. The lighting circuit lights up a light source using an external power source. The storage unit stores in advance a correspondence relationship between a power supply time from the power source and a dimming level of the light source. The control unit controls the lighting circuit to light up the light source at a dimming level corresponding to the power supply time based on the correspondence relationship. Effect of the Invention

[0007] According to the present invention, it is possible to provide a lighting device and a lighting apparatus that can adjust the light intensity to a desired brightness without using a dimming signal. [Brief description of the drawings]

[0008] [Figure 1] FIG. 1 is a diagram illustrating a schematic configuration of a lighting device according to an embodiment. [Diagram 2] FIG. 2 is a diagram illustrating an overview of dimming level setting information according to the embodiment. [Diagram 3] FIG. 3 is a diagram for explaining an overview of the notification pattern according to the embodiment. [Figure 4] FIG. 4 is a diagram for explaining an overview of the notification pattern according to the embodiment. [Diagram 5] FIG. 5 is a diagram for explaining an overview of the notification pattern according to the embodiment. [Figure 6] FIG. 6 is a diagram showing an overview of dimming degree determination pattern setting information according to the embodiment. [Figure 7] FIG. 7 is a diagram showing an overview of dimming state management information according to the embodiment. [Figure 8] FIG. 8 is a diagram for explaining an overview of determining the dimming level according to the embodiment. [Figure 9] FIG. 9 is a diagram for explaining an overview of determining the dimming level according to the embodiment. [Figure 10] FIG. 10 is a diagram for explaining an overview of determining the dimming level according to the embodiment. [Figure 11] FIG. 11 is a flowchart illustrating an example of a processing procedure of the lighting device according to the embodiment. [Figure 12] FIG. 12 is a diagram for explaining an example of a method for setting the dimming degree according to the modified example. [Figure 13] FIG. 13 is a diagram for explaining an example of a method for setting the dimming degree according to the modified example. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] A lighting device 100 according to the embodiment and modified examples described below includes a lighting circuit 110, a storage unit 130, and a control unit 140. The lighting circuit 110 lights the light source 11 using an external power source EPS. The storage unit 130 stores in advance a correspondence relationship between the power supply time from the power source EPS and the dimming level of the light source 11. The control unit 140 controls the lighting circuit 110 based on the correspondence relationship so as to light the light source 11 at a dimming level corresponding to the power supply time.

[0010] In addition, in the embodiments and modified examples described below, the control unit 140 determines the dimming level corresponding to the power-on time, and then determines the dimming level on the condition that a dimming level determination pattern consisting of a predefined combination of power-on and power-off is detected.

[0011] In addition, in the embodiments and modified examples described below, after the dimming level is determined, the control unit 140 determines a notification pattern for notifying the user of the determined dimming level, and controls the lighting circuit 110 to turn on the light source 11 in the notification pattern prior to turning on the light source 11 at the determined dimming level.

[0012] Moreover, the illumination device 10 according to the embodiment and modified examples described below includes the lighting device 100 described above.

[0013] Furthermore, the lighting device 10 according to the embodiment and modified examples described below turns on or turns on intermittently in a predetermined pattern, and after being turned off, turns on at a dimming level corresponding to the predetermined pattern.

[0014] [Embodiment] (Configuration of lighting device 10) Hereinafter, the configuration of an illumination device 10 according to an embodiment will be described with reference to the drawings. Fig. 1 is a diagram showing a schematic configuration of an illumination device according to an embodiment.

[0015] As shown in Fig. 1, the lighting device 10 includes a light source 11, a switch 12, and a lighting device 100. Note that Fig. 1 shows an example of the lighting device 10 according to the embodiment, and is not limited to the example shown in Fig. 1, and may have more light sources 11 than those shown in Fig. 1.

[0016] 1 turns on a light source 11 when a switch 12 is turned on, and turns off the light source 11 when the switch 12 is turned off. The lighting device 10 shown in FIG 1 is a lighting device that does not have a dimming signal line.

[0017] The light source 11 includes a plurality of light emitting elements such as LEDs (Light Emitting Diodes). The light source 11 may have any shape, such as a straight tube lamp shape with bases on both ends, a bulb shape with a screw base, or a flat lamp shape with a GX base.

[0018] The switch 12 is a device for supplying power to the lighting device 10. For example, when a user of the lighting device 10 switches the switch 12 to an on (ON) state, power supply from the power source EPS to the lighting device 10 is started. On the other hand, when a user of the lighting device 10 switches the switch 12 to an off (OFF) state, power supply from the power source EPS to the lighting device 10 is stopped. The switch 12 is typically a wall switch. The power source EPS is, for example, a commercial AC power source.

[0019] The lighting device 100 is a device that lights up the light source 11 using an external power source EPS. As will be described later, the lighting device 100 can control the lighting state of the light source 11 based on the power supply time from the power source EPS without using a dimming signal.

[0020] (Configuration of lighting device 100) 1, lighting device 100 includes lighting circuit 110, power supply monitor 120, storage unit 130, and control unit 140. Note that the configuration of lighting device 100 may be different from the example shown in FIG.

[0021] The lighting circuit 110 is a circuit that rectifies and smoothes AC power supplied from the power source EPS, converts it into a predetermined DC power, and outputs it to the light source 11. The lighting circuit 110 converts the rectified and smoothed AC power into the predetermined DC power, for example, by the switching operation of a switching element of a chopper circuit. The lighting circuit 110 is typically an AC / DC converter.

[0022] The power supply monitoring unit 120 is a circuit that monitors power supply from the power supply EPS and the stop of power supply. The power supply monitoring unit 120 is connected to the primary power line of the lighting circuit 110. For example, when the switch 12 is turned on, the power supply monitoring unit 120 sends a signal indicating that power supply has started (hereinafter referred to as an "on signal") to the control unit 140. Also, when the switch 12 is turned off, the power supply monitoring unit 120 sends a signal indicating that power supply has been stopped (hereinafter referred to as an "off signal") to the control unit 140.

[0023] The storage unit 130 stores data and programs necessary for processing executed by the control unit 140. The storage unit 130 is realized by a semiconductor memory element such as a random access memory (RAM) or a flash memory, or a storage device such as a hard disk or an optical disk.

[0024] For example, the memory unit 130 can store, as data necessary for processing executed by the control unit 140, dimming level setting information that pre-stores the correspondence between the power supply time from the power source EPS and the dimming level of the light source 11, dimming level determination pattern setting information that stores dimming level determination patterns consisting of combinations of power supply and non-power supply, and dimming state management information that stores the current state of the dimming level.

[0025] The dimming degree setting information according to the embodiment will be described with reference to Fig. 2. Fig. 2 is a diagram showing an overview of the dimming degree setting information according to the embodiment.

[0026] As shown in Fig. 2, the dimming setting information includes the items "dimming level" and "power supply time T EThe dimming level setting information has an item of “time (seconds)” and an item of “notification pattern.” The dimming level setting information stores information corresponding to these items in association with each other.

[0027] In the "dimming level" item, information related to the brightness of the light source 11 is set in advance by the user of the lighting device 10. For example, "full light" represents the dimming level when the light source 11 is turned on at maximum brightness. Furthermore, "70%" represents the dimming level when the light source 11 is turned on at 70% of the maximum brightness. Furthermore, "50%" represents the dimming level when the light source 11 is turned on at 50% of the maximum brightness. Note that either illuminance or total luminous flux may be used as an index for defining the dimming level.

[0028] "Electrification time T E In the "Power-on time T (seconds)" field, information about the power-on time from the power source EPS is preset by the user of the lighting device 10. E The control unit 140 determines the power supply time T E If the time T E If the time T E If the time t1 is equal to or greater than 6 seconds and less than 8 seconds, it is determined that the dimming level designated by the user of the lighting device 10 is "50%."

[0029] In the "notification pattern" item, information on a notification pattern for notifying a user of a dimming level determined by detection of a dimming level determination pattern described later is preset by the user of the lighting device 10. In the example shown in Fig. 2, a different notification pattern is preset for each dimming level. Figs. 3 to 5 are diagrams for explaining an overview of the notification patterns according to the embodiment.

[0030] Fig. 3 shows the change over time in the dimming level corresponding to pattern A, which is a notification pattern when the dimming level is at full light. As shown in Fig. 3, according to pattern A, the dimming level of light source 11 is increased from 0% to 100% at a constant rate, and immediately thereafter, the dimming rate is returned to 0%. Then, according to pattern A, after a predetermined time has elapsed, light source 11 is turned on again at the dimming level of 100%.

[0031] Fig. 4 shows the change over time in the dimming level corresponding to pattern B, which is a notification pattern when the dimming level is 70%. As shown in Fig. 4, according to pattern B, the dimming level of light source 11 is returned to 0% immediately after it increases from 0% to 70% at a constant rate. Next, according to pattern B, after a predetermined time has elapsed, light source 11 is turned on again at a dimming level of 70%, and after a predetermined time has elapsed, the dimming level is returned to 0%. Then, according to pattern B, after a predetermined time has elapsed, light source 11 is turned on again at a dimming level of 70%.

[0032] Fig. 5 shows the change over time in the dimming level corresponding to pattern C, which is a notification pattern when the dimming level is 50%. As shown in Fig. 5, according to pattern C, the dimming level of light source 11 is returned to 0% immediately after it increases from 0% to 50% at a constant rate. Next, according to pattern C, after a predetermined time has elapsed, light source 11 is turned on again at a dimming level of 50%, and after a predetermined time has elapsed, the dimming level is returned to 0%, and this pattern is repeated twice. Then, according to pattern C, after a predetermined time has elapsed, light source 11 is turned on again at a dimming level of 50%.

[0033] The dimming degree determination pattern setting information according to the embodiment will be described with reference to Fig. 6. Fig. 6 is a diagram showing an overview of the dimming degree determination pattern setting information according to the embodiment.

[0034] As shown in FIG. 6, the dimming degree determination pattern setting information is “power supply time T E (sec)" and "De-energization time T NE (seconds)" item, "Switch on / off repetition count" item, and "Waiting time from dimming level setting T wThe dimming level determination pattern setting information stores information corresponding to these items in association with each other.

[0035] "Electrification time T E In the "non-power-on time T (seconds)" item, information about the power-on time from the power source EPS is preset by the user of the lighting device 10. NE In the "Power OFF Time (seconds)" field, information relating to the power OFF time is preset by the user of the lighting device 10.

[0036] The "Number of times switching on / off is repeated" field contains information regarding the number of times the user of the lighting device 10 repeatedly switches the switch 12 between the on state (powered) and the off state (not powered) (hereinafter referred to as the "on / off operation").

[0037] Waiting time from dimming level setting T w In the "waiting time" item, information about the waiting time after the user of the lighting device 10 performs an operation to specify the dimming level is set in advance.

[0038] According to the dimming level determination pattern setting information shown in Fig. 6, the power supply time T E is 1 second or more and less than 2 seconds, and the de-energization time T NE is less than 1 second, the number of on / off operations is 3, and the waiting time T w If the time is less than 4 seconds, the control unit 140 determines that the dimming degree confirmation pattern is a dimming degree confirmation pattern for confirming the dimming degree designated by the user.

[0039] The dimming state management information according to the embodiment will be described with reference to Fig. 7. Fig. 7 is a diagram showing an overview of the dimming state management information according to the embodiment. As shown in Fig. 7, the dimming state management information stores information indicating the current state of dimming level. The dimming state management information is registered by the control unit 140.

[0040] The control unit 140 has an internal memory for storing programs that define various processing procedures and required data, and can execute various processes using these. The control unit 140 can be realized, for example, by a microcomputer. The microcomputer is equipped with a processor such as a CPU (Central Processing Unit) or an MPU (Micro Processing Unit), and a storage device such as a ROM (Read Only Memory) or a RAM (Random Access Memory). The ROM stores programs for controlling each part of the lighting device 100 and applications for executing various processes. The microcomputer controls the lighting device 100 and realizes various functions by the processor such as the CPU executing the programs and applications stored in the ROM. The RAM is used as a memory area required for the processor such as the CPU to execute calculations and the like.

[0041] The control unit 140 may read a program or the like stored in the storage unit 130 included in the lighting device 100 and execute the read program to control the lighting device 100 and realize various functions. The control unit 140 may also be realized by an integrated circuit such as an ASIC (Application Specific Integrated Circuit) or an FPGA (Field-Programmable Gate Array).

[0042] The control unit 140 controls the lighting circuit 110 to light the light source 11 at a dimming level corresponding to the power-on time based on the correspondence relationship between the power-on time from the power source EPS and the dimming level of the light source 11. This allows the lighting device 100 to adjust the dimming level to a desired brightness without using a dimming signal.

[0043] For example, the control unit 140 uses a built-in timer (see FIG. 1) to measure the elapsed time from when it receives an on signal to when it receives an off signal, based on an on signal and an off signal (hereinafter referred to as an on / off signal) received from the power supply monitoring unit 120. Then, the control unit 140 regards the measured elapsed time as the power supply time, and refers to the dimming degree setting information to select a dimming degree corresponding to the power supply time.

[0044] In addition, after the control unit 140 selects the dimming degree corresponding to the energization time, the control unit 140 determines the dimming degree on the condition that a dimming degree determination pattern consisting of a combination of energization and de-energization is detected. This allows the lighting device 100 to easily determine that the operation on the switch 12 is an operation related to setting the dimming degree.

[0045] For example, the control unit 140 determines whether or not the dimming degree determination pattern setting information is set to the standby time T w It is determined whether the dimming confirmation pattern set in the dimming confirmation pattern setting information is detected before the waiting time T w is acquired based on the elapsed time since the power supply monitor 120 received an OFF signal.

[0046] Furthermore, when it is determined that a dimming confirmation pattern has been detected, the control unit 140 confirms the selected dimming level, and registers information on the confirmed dimming level in the dimming state management information.

[0047] In addition, the control unit 140 may overwrite and update the information on the dimming level registered in the dimming state management information with the information on the confirmed dimming level only when information on the dimming level already registered in the dimming state management information exists and the confirmed dimming level differs from the registered dimming level.

[0048] An overview of determining the dimming level by the control unit 140 will be described with reference to Fig. 8 to Fig. 10. Fig. 8 to Fig. 10 are diagrams for explaining an overview of determining the dimming level according to the embodiment.

[0049] As shown in FIG. 8, the control unit 140 determines the dimming level to be "full" based on the power-on time of "3.3 seconds". After that, after a standby time of "2.7 seconds", when the power-on time and non-power-on time of the on / off signal pattern received from the power supply monitoring unit 120 are respectively as follows: power-on: "1.2 seconds" → non-power-on: "0.5 seconds" → power-on: "1.1 seconds" → non-power-on: "0.4 seconds" → power-on: "1.1 seconds", and the number of switch on / off repetitions is three, it determines that a dimming confirmation pattern has been detected and confirms the dimming level to be "full".

[0050] As shown in FIG. 9, the control unit 140 determines the dimming level to be "70%" based on the power-on time of "5.2 seconds". After that, after a standby time of "3.2 seconds", if the power-on time and non-power-on time of the on / off signal pattern received from the power supply monitoring unit 120 are respectively as follows: power-on: "1.5 seconds" → non-power-on: "0.4 seconds" → power-on: "1.3 seconds" → non-power-on: "0.5 seconds" → power-on: "1.4 seconds", and the number of switch on / off repetitions is three, it determines that a dimming confirmation pattern has been detected and confirms the dimming level to be "70%".

[0051] Also, as shown in FIG. 10, the control unit 140 determines the dimming level to be "50%" based on the power-on time of "6.9 seconds". After that, after a standby time of "2.5 seconds", if the power-on time and non-power-on time of the on / off signal pattern received from the power supply monitoring unit 120 are respectively as follows: power-on: "1.3 seconds" → non-power-on: "0.3 seconds" → power-on: "1.2 seconds" → non-power-on: "0.3 seconds" → power-on: "1.3 seconds", and the number of switch on / off repetitions is three, it determines that a dimming confirmation pattern has been detected and confirms the dimming level to be "50%".

[0052] After the dimming degree is determined, the control unit 140 determines a notification pattern for notifying the user of the determined dimming degree by referring to the dimming degree setting information. Then, the control unit 140 executes dimming processing to control the lighting circuit 110 to light the light source 11 in the determined notification pattern prior to lighting the light source 11 at the determined dimming degree. In this way, the lighting device 100 can allow the user to confirm the setting contents of the dimming degree. As described above, the lighting device 100 can provide the lighting device 10 that lights up or lights intermittently in a predetermined pattern (for example, the above-mentioned notification pattern) and lights up at a dimming degree corresponding to the predetermined pattern after being turned off.

[0053] (Processing Procedure by Lighting Device 100) A processing procedure of the lighting device 100 according to the embodiment will be described with reference to Fig. 11. Fig. 11 is a flowchart showing an example of the processing procedure of the lighting device according to the embodiment. The processing procedure shown in Fig. 11 is executed by the control unit 140 included in the lighting device 100.

[0054] As shown in FIG. 11, the control unit 140 selects the dimming level of the light source 11 based on the power-on time (step S101).

[0055] Furthermore, the control unit 140 determines whether or not a dimming level determination pattern has been detected within a predetermined waiting time (step S102).

[0056] When the control unit 140 determines that a dimming degree determination pattern has been detected within the predetermined waiting time (step S102; Yes), it determines the dimming degree selected in step S101 (step S103).

[0057] Furthermore, the control unit 140 registers the dimming level determined in step S103 in dimming state management information (step S104).

[0058] Furthermore, the control unit 140 determines a notification pattern for notifying the determined dimming level by referring to the dimming level setting information (step S105).

[0059] In addition, prior to turning on the light source 11 at the dimming level determined in step S103, the control unit 140 turns on the light source 11 with the notification pattern determined in step S105, executes dimming processing to control the lighting circuit 110 to turn on the light source 11 at the registered dimming level (step S106), and then terminates the processing procedure shown in FIG. 11.

[0060] In the above step S102, if the control unit 140 determines that the dimming degree determination pattern has not been detected within the specified waiting time (step S102; No), it resets the dimming degree selected in step S101 (step S107) and terminates the processing procedure shown in FIG. 11.

[0061] [Variations] (Interactive dimming settings) In the above-described embodiment, the lighting device 100 may set, in the lighting device 10, a dimming level corresponding to the timing at which a user operation is detected while changing the brightness of the light source 11. Fig. 12 and Fig. 13 are diagrams for explaining an example of a method for setting a dimming level according to a modified example.

[0062] 12, the control unit 140 determines whether a dimming level setting operation by a user is detected. For example, the control unit 140 determines whether a dimming level setting operation is detected based on a combination of an on signal and an off signal received from the power supply monitoring unit 120.

[0063] Specifically, the control unit 140 determines that a dimming level setting operation has been detected when the alternately input on signal (ON) and off signal (OFF) are composed of a combination of five signals: on signal (ON) → off signal (OFF) → on signal (ON) → off signal (OFF) → on signal (ON).

[0064] In addition, the combination of signals that constitute the dimming level setting operation is not limited to the example shown in Figure 12, and may be composed of any number of combinations of signals, such as on signal (ON) → off signal (OFF) → on signal (ON).

[0065] Furthermore, when the control unit 140 determines that a dimming level setting operation has been detected, the control unit 140 turns on the light source 11 while increasing the dimming level at a constant rate from 0%, and determines whether a dimming level designation operation by the user has been detected. For example, the control unit 140 detects an off signal (OFF) input while the light source 11 is turned on as a dimming level designation operation.

[0066] Then, as shown in FIG. 12, the control unit 140 determines the dimming level MLRx corresponding to the timing Tx(OFF) at which the dimming level designation operation is detected as the dimming level when turning on the light source 11, and registers it in the dimming state management information.

[0067] 13, similarly to the example shown in Fig. 12, the control unit 140 determines whether a dimming level setting operation by the user has been detected. If the control unit 140 determines that a dimming level setting operation has been detected, the control unit 140 determines whether a dimming level designation operation by the user has been detected while turning on the light source 11 while increasing the dimming level at a constant rate from 0%. Then, as shown in Fig. 13, the control unit 140 determines the dimming level MLRy corresponding to the timing Ty(OFF) at which the dimming level designation operation was detected as the dimming level when turning on the light source 11, and registers it in the dimming state management information.

[0068] In this way, the lighting device 100 changes the brightness of the light source 11 and determines the dimming level corresponding to the timing at which the user's operation is detected as the dimming level when turning on the light source 11. This allows the lighting device 100 to set the dimming level for the lighting device 10 corresponding to the brightness that the user actually sees with the naked eye.

[0069] (Resetting the dimming level) Furthermore, in the above-described embodiment, lighting device 100 may reset the set dimming level in response to a switch operation by the user. For example, lighting device 100 can determine whether a dimming level reset operation by the user has been detected based on an on / off signal received from power supply monitor 120. In this case, lighting device 100 pre-sets a pattern that does not overlap with the dimming level determination pattern as a pattern of on / off signals corresponding to the reset operation.

[0070] [others] Furthermore, a processing program for implementing the processing functions of the lighting device 100 according to the above-described embodiment or modification may be stored in a computer-readable recording medium such as an optical disk, a semiconductor memory, a magnetic tape, a flexible disk, etc., and distributed. In this case, for example, the lighting device 100 installs the processing program from the storage medium and executes the various processes described above.

[0071] The above-mentioned processing program may be stored in a cloud storage located on a network such as the Internet, and may be made available for downloading to a computer. The above-mentioned processing functions may be realized by cooperation between an operating system (OS) and application software. In this case, the parts other than the OS may be stored on a medium and distributed, or the parts other than the OS may be stored in a cloud storage and may be made available for downloading to a computer.

[0072] Furthermore, the processing functions of the lighting device 100 according to the above embodiment or modification may be distributed so that at least a part of the processing functions is executed on a cloud server. For example, the cloud server may have the processing functions of the control unit 140 of the lighting device 100. In this case, the lighting device 100 uploads information such as an on signal or an off signal received from the power supply monitoring unit 120 to the cloud server through a predetermined communication unit. The cloud server selects and determines the dimming level based on the information such as the on signal or the off signal uploaded from the lighting device 100, and transmits information on the determined dimming level to the lighting device 100. The lighting device 100 performs dimming processing of the light source 11 based on the information on the dimming level received from the cloud server through the predetermined communication unit.

[0073] Furthermore, among the processes described in the above embodiments, all or part of the processes described as being performed automatically can be performed manually, or all or part of the processes described as being performed manually can be performed automatically by a known method. In addition, the information including the processing procedures, specific names, various data and parameters shown in the above documents and drawings can be changed arbitrarily unless otherwise specified. For example, the various information shown in each drawing is not limited to the illustrated information.

[0074] Although the embodiment of the present invention has been described above, this embodiment is presented as an example and is not intended to limit the scope of the invention. This embodiment can be implemented in various other forms, and various omissions, substitutions, and modifications can be made without departing from the gist of the invention. This embodiment is included in the scope of the invention and its equivalents as well as in the scope and gist of the invention. In addition, this embodiment can be appropriately combined as long as the processing contents are not contradictory.

[0075] Furthermore, the effects described in this specification are merely examples and are not limiting, and other effects may also be present. [Explanation of symbols]

[0076] 10. Lighting Equipment 11 Light source 12 Switch 100 Lighting Device 110 Lighting circuit 120 Power supply monitoring section 130 Storage section 140 Control section

Claims

1. A lighting circuit that lights the light source using an external power source; a storage unit that stores in advance a correspondence relationship between a power supply time from the power source and a dimming level of the light source; a control unit that controls the lighting circuit so as to light the light source at a dimming level corresponding to the energization time based on the correspondence relationship; Equipped with The control unit is After selecting a dimming level corresponding to the power-on time, the dimming level is determined on the condition that a dimming level determination pattern constituted by a combination of power-on and power-off is detected. A lighting device characterized by:

2. The control unit is After the dimming degree is determined, a notification pattern for notifying a user of the determined dimming degree is determined, and the lighting circuit is controlled so as to light the light source in the notification pattern prior to lighting the light source at the determined dimming degree.

2. The lighting device according to claim 1 .

3. A lighting device comprising the lighting device according to claim 1 or 2.

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