Switching device and lighting system

Abstract

To provide a switching device capable of improving the responsiveness until control corresponding to an operation is executed, and a lighting system.SOLUTION: A switching device 1 includes a main unit, a dimming control unit 12, and a storage unit 21. On the front of the main unit, an operation part for allowing a user to operate thereon is provided. The dimming control unit 12 performs dimming control of a lighting load L1. The storage unit 21 stores a setting value of a first dimming level and a setting value of a second dimming level different from the first dimming level as the dimming lighting level of the lighting load L1. The dimming control unit 12 is configured so as to, when the first operation of the operation part is performed in a state where the lighting load L1 is on at the first dimming level, turn off the lighting load L1. The dimming control unit 12 is also configured so as to, when a second operation is made on the operation part in a time when the lighting load L1 is turned off until the judgment time is elapsed, turn on the lighting load L1 at the second dimming level.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present disclosure relates to a switch device and a lighting system. More particularly, the present disclosure relates to a switch device and a lighting system capable of dimming a lighting load. [Background technology]

[0002] Patent Document 1 discloses a wall-mounted switch including a touch sensor and a dimming control unit that performs dimming control of a lighting load based on the detection result of the touch sensor. In this wall-mounted switch, if the touch sensor does not detect a touch operation within a predetermined time after the touch sensor detects a touch operation in an off state, the lighting control unit turns on the lighting load at a first dimming level. If the touch sensor detects a touch operation within a predetermined time after the touch sensor detects a touch operation in an off state, the lighting control unit turns on the lighting load at a second dimming level different from the first dimming level. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2014-120207 A Summary of the Invention [Problem to be solved by the invention]

[0004] In the wall-mounted switch of Patent Document 1, the light does not change from an off state to a lit state at the second dimming level until a predetermined time has elapsed after the touch sensor detects a touch operation, so some users may feel that the change to the lit state is slow.

[0005] An object of the present disclosure is to provide a switch device and a lighting system capable of improving the responsiveness until control in response to an operation is executed. [Means for solving the problem]

[0006] A switch device according to an embodiment of the present disclosure includes a main body, a dimming control unit, and a storage unit. An operation unit operable by a user is provided on the front of the main body. The dimming control unit performs dimming control of a lighting load. The storage unit stores a set value of a first dimming level and a set value of a second dimming level different from the first dimming level as dimming lighting levels of the lighting load. When a first operation of the operation unit is performed while the lighting load is turned on at the first dimming level, the dimming control unit turns off the lighting load. When a second operation of the operation unit is performed during the period from when the lighting load is turned off until a determination time has elapsed, the dimming control unit turns on the lighting load at the second dimming level.

[0007] A lighting system according to one aspect of the present disclosure includes the switch device and the lighting load. Effect of the Invention

[0008] According to the present disclosure, it is possible to provide a switch device and a lighting system capable of improving the responsiveness until control corresponding to an operation is executed. [Brief description of the drawings]

[0009] [Figure 1] FIG. 1 is a schematic circuit diagram of a lighting system including a switch device according to an embodiment of the present disclosure. [Diagram 2] FIG. 2 is an external perspective view of the switch device. [Diagram 3] FIG. 3 is an external perspective view of the switch device with a front cover open. [Figure 4] FIG. 4 is an exploded perspective view of the switch device. [Diagram 5] FIG. 5 is a front view of the switch device according to the embodiment of the present invention when attached to a wall. [Figure 6] FIG. 6 is a perspective view of the handle unit of the switch device as viewed from behind. [Figure 7]FIG. 7 is a state transition diagram illustrating the operation of the switch device according to the above embodiment. [Figure 8] FIG. 8 is a waveform diagram illustrating the anti-phase control by the switch device of the above embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] Hereinafter, a switch device and a lighting system according to an embodiment will be described in detail with reference to the drawings. However, each figure described in the following embodiment is a schematic diagram, and the dimensional ratio of the size of each component does not necessarily reflect the actual dimensional ratio. Furthermore, the configuration described in the following embodiment is merely one example of the present disclosure. The present disclosure is not limited to the following embodiment, and various modifications are possible depending on the design, etc., as long as the effects of the present disclosure can be achieved.

[0011] (Embodiment) (1) Overview FIG. 1 is a schematic circuit diagram of a lighting system 100 including a switch device 1 according to this embodiment.

[0012] The switch device 1 includes a main body 30 (see FIGS. 2 to 4), a dimming control unit 12, and a storage unit .

[0013] An operation unit 40 (see FIGS. 2 to 4) that can be operated by a user is provided on the front surface of the main body 30.

[0014] The dimming control unit 12 performs dimming control of the lighting load L1.

[0015] The storage unit 21 stores, as dimming lighting levels of the lighting load L1, a setting value of a first dimming level and a setting value of a second dimming level different from the first dimming level.

[0016] When a first operation of the operation unit 40 is performed while the lighting load L1 is turned on at the first dimming level, the dimming control unit 12 turns off the lighting load L1. When a second operation of the operation unit 40 is performed during the period from when the lighting load L1 is turned off until the determination time has elapsed, the dimming control unit 12 turns on the lighting load L1 at the second dimming level.

[0017] Here, the operation unit 40 is provided on the main body 30 so that the user can operate it. The operation by the user can be changed as appropriate depending on the operation method of the operation unit 40. In this embodiment, the operation unit 40 is, for example, a handle unit 41 provided rotatably around a shaft portion 33 (see FIG. 4) provided on the front surface of the main body 30, so that the operation by the user is an operation of pressing a part of the handle unit 41 to rotate the handle unit 41. In addition, when the operation unit 40 is a push button of a tact switch provided on the front surface of the main body 30, the operation by the user is an operation of pressing the push button of the tact switch. In addition, when the operation unit 40 is a touch panel provided on the front surface of the main body 30, the operation by the user is an operation of touching the operation surface of the touch panel (for example, a tap operation, a click operation, a swipe operation, etc.). Here, the first operation and the second operation performed by the user may be the same operation or may be different operations.

[0018] The judgment time is a time that can be regarded as the first operation and the second operation being performed consecutively, and is preferably set to any time between 0.5 seconds and 3 seconds, for example, and in this embodiment, the judgment time is set to, for example, 2 seconds. Note that, hereinafter, the state in which the lighting load L1 is turned on at the first dimming level may be referred to as a first dimming state, the state in which the lighting load L1 is turned on at the second dimming level may be referred to as a second dimming state, and the state in which the lighting load L1 is turned off may be referred to as an off state.

[0019] In the switch device 1 of this embodiment, when a first operation of the operation unit 40 is performed in the first dimming state, the dimming control unit 12 turns off the lighting load L1. Furthermore, when a second operation of the operation unit 40 is performed during the period from when the first dimming state is switched to the off state until the determination time has elapsed, the dimming control unit 12 turns on the lighting load L1 at the second dimming level. In this way, when the operation unit 40 is operated, the dimming control unit 12 changes the lighting state of the lighting load L1 in response to the operation of the operation unit 40, so that the responsiveness until the control in response to the operation is executed can be improved.

[0020] The switch device 1 of the present embodiment and the lighting load L1 configure the lighting system 100. In other words, the lighting system 100 includes the switch device 1 and the lighting load L1. Since the lighting system 100 includes the switch device 1, it is possible to improve the responsiveness until control corresponding to an operation is executed.

[0021] (2) Details The switch device 1 and the lighting system 100 according to this embodiment will be described in detail below with reference to Figs. 1 to 8. In the following, in Figs. 2 to 6, the X-axis direction is defined as the left-right direction, the Y-axis direction as the front-rear direction (depth direction), and the Z-axis direction as the up-down direction. Furthermore, the positive direction in the X-axis direction is defined as the right side, the positive direction in the Y-axis direction as the front side, and the positive direction in the Z-axis direction as the top side. However, these directions are merely examples and are not intended to limit the directions in which the switch device 1 is used. Moreover, the arrows indicating the various directions in the drawings are merely shown for the purpose of explanation and do not have any substance.

[0022] (2.1) Circuit configuration The switch device 1 of the present embodiment is fixed to, for example, an attachment target of a building. The attachment target in the present disclosure is an object to which the switch device 1 is fixed, and includes, for example, a structure such as a wall, ceiling, or floor of a building, or a fixture such as a desk, shelf, or counter table, or a partition, fittings, etc. arranged in a room of a building. The building in which the switch device 1 is installed is, for example, a residential facility such as a detached house or an apartment building, or a non-residential facility such as an office, a store, a school, a factory, a hospital, or a nursing home.

[0023] In this embodiment, as an example, a mounting object to which the switch device 1 is attached is a wall 200 of a house (see FIG. 5), and the switch device 1 is a built-in wiring device that is embedded in the wall 200.

[0024] As described above, the switch device 1 includes the main body 30, the dimming control unit 12, and the storage unit 21. The switch device 1 further includes a pair of terminals 91, 92, a switch unit SW1, a processing unit 10, a first detection unit 15, a second detection unit 16, a drive circuit 17, a tact switch 18, a timer setting unit 19, a display unit 20, and a power supply circuit 22.

[0025] A series circuit of an AC power source PS1 and a lighting load L1 is connected between a pair of terminals 91, 92. The AC power source PS1 is, for example, a commercial AC power source (system power source) of single phase 100 [V], 60 [Hz]. The lighting load L1 is, for example, a lighting fixture including a light source formed of an LED (Light Emitting Diode) and a lighting circuit that lights the light source. The lighting circuit included in the lighting load L1 lights the light source when power is supplied from the AC power source PS1.

[0026] The switch unit SW1 is inserted between the AC power supply PS1 and the lighting load L1. In this disclosure, "inserted" means inserted between two circuit elements that are electrically connected, and the switch unit SW1 is electrically connected between the AC power supply PS1 and the lighting load L1 in a circuit configured with the AC power supply PS1 and the lighting load L1. In other words, the lighting load L1 is electrically connected to the AC power supply PS1 via the switch unit SW1.

[0027] The switch section SW1 has, for example, two MOSFETs (Metal-Oxide-Semiconductor Field Effect Transistors) Q1 and Q2 electrically connected in series between a pair of terminals 91 and 92. Each of these two MOSFETs Q1 and Q2 is an enhancement type n-channel MOSFET. The source terminals of the two MOSFETs Q1 and Q2 are connected to each other.

[0028] The gate terminals of the MOSFETs Q1 and Q2 are connected to a drive circuit 17. The drive circuit 17 drives the MOSFETs Q1 and Q2 in response to a control signal S1 input from the processing unit 10, thereby controlling the switch unit SW1 to an on or off state. When the switch unit SW1 is controlled to an on state, a conductive state is established between the pair of terminals 91 and 92, and when the switch unit SW1 is controlled to an off state, a cut-off state is established between the pair of terminals 91 and 92. The MOSFETs Q1 and Q2 are connected in what is called an anti-series configuration, and therefore the state between the terminals 91 and 92 can be switched between a conductive state and a cut-off state for bidirectional current.

[0029] The first detection unit 15 and the second detection unit 16 are configured to detect the magnitude of the voltage applied across the switch unit SW1 (hereinafter also referred to as the switch voltage) to detect the zero-crossing point of the switch voltage.

[0030] Here, it is assumed that the switch section SW1 is in the off state and an AC voltage is applied between both ends of the switch section SW1 from the AC power supply PS1. In other words, when the switch section SW1 is in the off state, the switch voltage between both ends of the switch section SW1 is approximately equal to the AC voltage input from the AC power supply PS1. Note that, hereinafter, the polarity of the switch voltage where terminal 91 is at a higher potential than terminal 92 is referred to as "positive polarity," and the polarity of the switch voltage where terminal 92 is at a higher potential than terminal 91 is referred to as "negative polarity."

[0031] The first detection unit 15 is connected to the terminal 91. The first detection unit 15 detects a zero-cross point when the switch voltage switches from negative to positive polarity by comparing the absolute value of the voltage between the terminal 91 and ground (reference potential point) with a reference value (e.g., 10 V). In other words, when the first detection unit 15 detects that the absolute value of the voltage between the terminal 91 and ground has transitioned from a state where it is less than the reference value to a state where it is equal to or greater than the reference value, it determines that this is a zero-cross point.

[0032] The second detection unit 16 is electrically connected to the terminal 92. The second detection unit 16 detects a zero-cross point when the switch voltage switches from positive to negative polarity by comparing the absolute value of the voltage between the terminal 92 and ground (reference potential point) with a reference value (e.g., 10 V). In other words, when the second detection unit 16 detects that the absolute value of the voltage between the terminal 92 and ground has transitioned from a state where it is less than the reference value to a state where it is equal to or greater than the reference value, it determines that this is a zero-cross point.

[0033] Therefore, the detection timing of the zero cross point detected by each of the first detection section 15 and the second detection section 16 is slightly delayed from the zero cross point (0 [V]) in the strict sense.

[0034] The tactile switch 18 is disposed in an operable state on the front surface of the main body 30. When the user presses the operation unit 40, the push button 18A (see FIG. 4) of the tactile switch 18 is pressed by the operation unit 40 pressed by the user, and the contact of the tactile switch 18 is switched, for example, from an OFF state to an ON state. When the user stops pressing the operation unit 40, the operation unit 40 returns to the position before the operation, and the contact of the tactile switch 18 is switched from an ON state to an OFF state. Therefore, when the user presses the operation unit 40, the contact of the tactile switch 18 is switched from an OFF state to an ON state, and the contact of the tactile switch 18 maintains the ON state while the user continues to press the operation unit 40. After that, when the user stops pressing the operation unit 40, the contact of the tactile switch 18 is switched from an ON state to an OFF state.

[0035] The timer setting unit 19 is used to set timer control of the lighting load L1. The timer control is, for example, a control that turns on the lighting load L1 when the lighting time comes and turns off the lighting load L1 when the lighting time comes. As shown in Fig. 3, the timer setting unit 19 includes, for example, a button 19A for switching whether or not to execute the timer control, a button 19B operated when setting the lighting time and the turning off time, and buttons 19C and 19D for adjusting the lighting time and the turning off time.

[0036] The display unit 20 is, for example, a liquid crystal display device arranged on the front surface of the main body 30. The display content of the display unit 20 is controlled by the processing unit 10, for example, and displays settings related to timer control and the like.

[0037] The storage unit 21 includes a rewritable non-volatile memory such as an EEPROM (Electrically Erasable and Programmable Read-Only Memory) or a flash memory. The storage unit 21 stores, for example, a setting value of a first dimming level and a setting value of a second dimming level. The storage unit 21 also stores setting contents related to timer control set by the timer setting unit 19, etc.

[0038] The processing unit 10 mainly comprises, for example, a computer system having one or more processors and a memory. The processor of the computer system executes a program recorded in the memory of the computer system, thereby realizing the functions of the processing unit 10. The program may be recorded in the memory, may be provided via a telecommunication line such as the Internet, or may be provided by recording it on a non-transitory recording medium such as a memory card.

[0039] The processing unit 10 has functions such as an operation reception unit 11, the above-mentioned dimming control unit 12, a setting unit 13, and a timer control unit 14. Note that the operation reception unit 11, the dimming control unit 12, the setting unit 13, and the timer control unit 14 merely indicate functions realized by the processing unit 10, and do not necessarily indicate actual configurations.

[0040] The operation reception unit 11 receives an operation of the operation unit 40 by a user by monitoring whether the contact of the tactile switch 18 is in an on or off state, and generates operation information related to the operation of the operation unit 40. If the tactile switch 18 is in an on state, the operation reception unit 11 generates operation information indicating that the user is pressing the operation unit 40.

[0041] The dimming control unit 12 controls the drive circuit 17 based on the operation information generated by the operation reception unit 11 to dimly light or extinguish the lighting load L1. FIG. 8 is a waveform diagram of the load voltage applied to the lighting load L1 and the control signal S1 output by the dimming control unit 12. When the lighting load L1 is dimmed at the first dimming level or the second dimming level, when the first detection unit 15 or the second detection unit 16 detects a zero cross point (times t1 and t3), the dimming control unit 12 outputs a control signal S1 that controls the switch unit SW1 to an on state, and the drive circuit 17 switches the switch unit SW1 from an off state to an on state. After that, when an on time Ton corresponding to the dimming level (first dimming level or second dimming level) has elapsed from the zero cross point, the dimming control unit 12 outputs a control signal S1 that controls the switch unit SW1 to an off state (times t2 and t4), and the drive circuit 17 switches the switch unit SW1 from an on state to an off state. The dimming control unit 12 generates the control signal S1 for controlling the switch unit SW1 such that the on-time Ton becomes longer as the dimming lighting level becomes higher (brighter).

[0042] In this way, when the dimming control unit 12 controls the switch unit SW1 from the OFF state to the ON state when it detects a zero cross of the AC voltage of the AC power supply PS1, in the case of dimming the lighting load L1. Then, when an ON time corresponding to the dimming lighting level has elapsed since the zero cross of the AC voltage, the dimming control unit 12 controls the switch unit SW1 from the ON state to the OFF state. As a result, in each half cycle of the AC voltage of the AC power supply PS1, during the period from the zero cross point until the ON time Ton corresponding to the dimming lighting level has elapsed, the switch unit SW1 is controlled in reverse phase control to be in the ON state, and the power supplied to the lighting load L1 is controlled, so that the lighting load L1 can be dimmed. By the dimming control unit 12 controlling the switch unit SW1 in reverse phase, the switch unit SW1 can be switched from the OFF state to the ON state near the zero cross of the AC voltage, and noise generated during switching can be reduced.

[0043] In this embodiment, the first dimming level is set to, for example, the upper limit level of the dimming range of the dimming lighting level. Meanwhile, the second dimming level can be set to any level between the upper limit level and the lower limit level of the dimming range of the dimming lighting level. The dimming lighting level is expressed as a percentage, for example, with the brightness of the upper limit level of the dimming range being 100% and the off state being 0%. The lower limit level of the dimming range is the minimum brightness at which the lighting load L1 can be turned on, and is a value of several percent to several tens of percent. Since the first dimming level is the upper limit level (100% dimming level) of the dimming range of the dimming lighting level, the first dimming state in which the lighting load L1 is turned on at the first dimming level is also referred to as a full lighting state. Moreover, since the second dimming level is set to any dimming level between the upper limit level and the lower limit level of the dimming range (for example, 50% dimming level), the second dimming state in which the lighting load L1 is turned on at the second dimming level may also be referred to as a dimming lighting state.

[0044] The setting unit 13 has a function of setting a set value of the second dimming level, and a function of making settings related to timer control based on the setting contents input using the timer setting unit 19. The operation of the setting unit 13 to set a set value of the second dimming level will be described in more detail in "(2.3.2) Setting mode". Also, the function of the setting unit 13 to make settings related to timer control will be described in more detail in "(2.3.3) Timer control".

[0045] For example, when the timer control unit 14 is set by the timer setting unit 19 to execute timer control, it controls the drive circuit 17 to turn on the lighting load L1 at the light-on time, and controls the drive circuit 17 to turn off the lighting load L1 at the light-off time. This allows the timer control unit 14 to automatically turn on the lighting load L1 during the period from the light-on time to the light-off time set by the timer setting unit 19. The timer control unit 14 may have a function to randomly vary the light-on time and the light-off time set by the timer setting unit 19 by a predetermined time width, thereby making it possible to prevent the light-on time and the light-off time from being the same every time.

[0046] The power supply circuit 22 is connected to a terminal 91 via a diode D1, and is connected to a terminal 92 via a diode D2. The power supply circuit 22 generates power for operating the internal circuit from a voltage applied across the switch section SW1. For example, the power supply circuit 22 generates power for operating the internal circuit by rectifying and smoothing the AC voltage input from the terminals 91 and 92 during a period in which the switch section SW1 is in an off state.

[0047] (2.2) Structure Next, the structure of each part of the switch device 1 will be described.

[0048] The switch device 1 includes a main body 30 and a handle unit 41 attached to the main body 30 in a state operable in response to a user's operation.

[0049] 4, the main body 30 is formed into a box shape by a rear body 31 and a front cover 32. The body 31 and the cover 32 are each a molded product made of synthetic resin. The main body 30 is formed by joining the body 31 and the cover 32 together.

[0050] The front cover 32 is provided with a pair of mounting claws at the top and bottom of the left side surface and a pair of mounting claws at the center in the vertical direction of the right side surface so that the cover 32 can be detachably attached to the mounting frame 80 used when fixing the embedded wiring device to the construction surface. The main body 30 is attached to the mounting frame 80 by inserting the mounting claws of the cover 32 into the mounting holes 81 provided in the left and right frame portions of the mounting frame 80. The main body 30 can be fixed to the wall 200 by inserting the main body 30 attached to the mounting frame 80 into the mounting holes provided in the wall 200 and fixing the mounting frame 80 to the wall 200 (see FIG. 5). A plate 85 is attached to the front side of the mounting frame 80, and the operating unit 40 attached to the front of the switch device 1 is exposed from an opening 86 of the plate 85.

[0051] 4, a shaft portion 33 that rotatably supports the handle unit 41 is provided at the left end of the center in the vertical direction on the front surface of the cover 32. Spring pieces 34 that push the handle unit 41 forward are provided integrally with the cover 32 at the upper and lower parts of the front surface of the cover 32.

[0052] Further, on the front surface of the cover 32, the display unit 20 is disposed under the upper spring piece 34, and below the display unit 20, four buttons 19A to 19D of the timer setting unit 19 are disposed.

[0053] Furthermore, in the center of the front surface of the cover 32, a push button 18A of the tactile switch 18 is disposed in an operable state.

[0054] 2, 3 and 6, the handle unit 41 is composed of a handle main body 50 and a front cover 60. In this embodiment, the operation part 40 is the handle unit 41 operably provided on the main body 30 in order to press and operate the tact switch 18 provided on the front surface of the main body 30.

[0055] The handle body 50 is a molded product of synthetic resin, and has a rectangular shape when viewed from the front. A bearing portion 51 that rotatably supports the shaft portion 33 is provided on the back surface of the left side of the handle body 50. A protrusion 52 that presses the push button 18A of the tact switch 18 is provided on the back surface of the handle body 50 at a position facing the push button 18A of the tact switch 18. In addition, a pair of hooks 53 are provided on the back surface of the handle body 50, and the pair of hooks 53 are inserted into a pair of holes 35 of the cover 32 to prevent the handle body 50 from coming off the cover 32.

[0056] The handle body 50 is provided with a through hole 54 for exposing the display unit 20, and four through holes 55 for exposing the four buttons 19A to 19D of the timer setting unit 19.

[0057] A platform-shaped support base 56 that protrudes forward is provided integrally with the handle body 50 at the left end of the front surface of the handle body 50. A shaft hole is provided on each of the upper and lower surfaces of the support base 56.

[0058] The front cover 60 is a molded product of synthetic resin. The shape of the front cover 60 is rectangular when viewed from the front, and is formed to a size that can cover the right side of the support base 56 on the front of the handle body 50. A pair of protrusions 61 that protrude to the left are provided from the upper and lower parts of the left side of the front cover 60. Each of the pair of protrusions 61 is provided with an axle that is inserted into an axle hole on the upper and lower surfaces of the support base 56. The front cover 60 is attached in a rotatable state to the handle body 50 by inserting the axle parts of the pair of protrusions 61 into the axle holes of the support base 56 of the handle body 50. The front cover 60 is rotatable between a first position (see FIG. 2) that covers the front of the handle body 50 and a second position (see FIG. 3) that exposes the front of the handle body 50.

[0059] A magnet 62 is attached to the rear surface of the front cover 60, and an iron piece 57 is attached to the rear surface of the handle body 50 at a position overlapping with the magnet 62 in the front-rear direction (see FIG. 3).

[0060] As shown in FIG. 3, when the front cover 60 is rotated to the second position in which the front surface of the handle body 50 is exposed, the display on the display unit 20 becomes visible and the buttons 19A to 19D of the timer setting unit 19 become operable.

[0061] As shown in Figures 2 and 5, when the front cover 60 is rotated to a first position covering the front of the handle body 50, the magnet 62 on the back of the front cover 60 magnetically attracts the iron piece 57 on the back of the handle body 50, thereby holding the front cover 60 in a position overlapping the front of the handle body 50.

[0062] When the handle body 50 is attached to the main body 30, the handle body 50 can rotate around the shaft 33, and the front cover 60 and the handle body 50 rotate together around the shaft 33. When the user presses the right end of the front cover 60, the handle body 50 rotates around the shaft 33. When the handle body 50 rotates, the handle body 50 moves toward the front of the main body 30, and the protrusion 52 of the handle body 50 presses the push button 18A of the tact switch 18, the contact state (on or off) of the tact switch 18 changes. After that, when the user's hand leaves the front cover 60 and the force pressing the handle body 50 is no longer applied, the handle body 50 moves forward under the elastic force of the spring piece 34. As a result, the protrusion 52 moves forward, and the push button 18A returns to the position before it was pressed by the protrusion 52, and the contact state (on or off) of the tact switch 18 changes.

[0063] (2.3) Operation Description The operation of the switch device 1 of this embodiment will be described with reference to the drawings.

[0064] (2.3.1) Control Mode The operation of the control mode in which the dimming control unit 12 of the switch device 1 controls the lighting load L1 based on the operation information generated by the operation receiving unit 11 will be described with reference to the state transition diagram of Fig. 7. Note that the state transition diagram shown in Fig. 7 is merely an example of the processing performed by the switch device 1 in the control mode and the setting mode, and processing may be added or omitted as appropriate.

[0065] When the user performs an operation of pressing the operation unit 40 for a short time (B23: first operation) in a state where the lighting load L1 is turned on at the first dimming level (ST1), the dimming control unit 12 outputs a control signal S1 to the drive circuit 17 to turn off the lighting load L1 based on the operation information generated by the operation reception unit 11. The drive circuit 17 controls the switch unit SW1 to the off state based on the control signal S1 to turn off the lighting load L1 (ST3). Here, the first operation is an operation of pressing the operation unit 40 for a short time. The "short time" is a time shorter than a set time (for example, a time of 1.5 seconds or more and 3 seconds or less) for determining that a long press operation of the operation unit 40 is performed, for example, a time of 1 second or less. When the dimming control unit 12 turns off the lighting load L1 from a state where the lighting load L1 is turned on at a predetermined dimming level, it is preferable to perform a fade-out by gradually lowering the dimming level over a predetermined fade time to turn off the lighting load L1.

[0066] When the user performs an operation of pressing the operation unit 40 for a short time (B11: second operation) from the time when the lighting load L1 is switched from the full lighting state to the off state until the judgment time has elapsed, the dimming control unit 12 outputs a control signal S1 to the drive circuit 17 to turn on the lighting load L1 at a second dimming level different from the first dimming level before the lighting load L1 is turned off, based on the operation information generated by the operation reception unit 11. The drive circuit 17 performs reverse phase control to dim the lighting load L1 at the second dimming level based on the control signal S1, and turns on the lighting load L1 at the second dimming level (ST2). When switching the lighting load L1 from the off state to the dimming state, the dimming control unit 12 preferably performs fade dimming to gradually brighten the dimming level to the second dimming level over a predetermined fade time.

[0067] In this way, by performing the first operation and the second operation successively within the judgment time in the fully lit state, the dimming control unit 12 can turn on the lighting load L1 at a second dimming level different from the level before it was turned off, so that the dimming lighting level of the lighting load L1 can be changed with a simple operation.

[0068] Also, when the user performs a fifth operation (B22) of pressing the operation unit 40 for a short time after the determination time has elapsed from the time when the full lighting state is switched to the off state, the dimming control unit 12 outputs a control signal S1 to the drive circuit 17 to turn on the lighting load L1 at the same first dimming level as before the lighting load L1 was turned off, based on the operation information generated by the operation reception unit 11. The drive circuit 17 performs reverse phase control to turn on the lighting load L1 at the first dimming level based on the control signal S1, and turns on the lighting load L1 at the first dimming level (ST1). In this way, when the fifth operation of the operation unit 40 is performed while the off state of the lighting load L1 continues for the determination time or more, the dimming control unit 12 turns on the lighting load L1 at the dimming level at which the lighting load L1 was turned on before the lighting load L1 was turned off. In this case, when the fifth operation of the operation unit 40 is performed, the dimming control unit 12 immediately turns on the lighting load L1 at the same dimming level as before the lighting load L1 was turned off, so that the time until the control according to the operation of the operation unit 40 is executed can be shortened.

[0069] On the other hand, when the user performs an operation of pressing the operation unit 40 for a short time (B24: third operation) while the lighting load L1 is turned on at the second dimming level (ST2), the dimming control unit 12 outputs a control signal S1 for turning off the lighting load L1 to the drive circuit 17 based on the operation information generated by the operation reception unit 11. The drive circuit 17 controls the switch unit SW1 to the off state based on the control signal S1, and turns off the lighting load L1 (ST3). Note that the dimming control unit 12 may perform a fade-out when turning off the lighting load L1.

[0070] When the user performs an operation of pressing the operation unit 40 for a short time (B12: fourth operation) during the period from the time when the dimming state is switched to the off state until the judgment time has elapsed, the dimming control unit 12 outputs a control signal S1 to the drive circuit 17 to turn on the lighting load L1 at a first dimming level different from the second dimming level before the lighting is turned off, based on the operation information generated by the operation reception unit 11. The drive circuit 17 performs reverse phase control to turn on the lighting load L1 at the first dimming level based on the control signal S1, and turns on the lighting load L1 at the first dimming level (ST1). Note that the dimming control unit 12 may perform fade dimming to gradually brighten the dimming level when turning on the lighting load L1 from the off state to the first dimming level.

[0071] In this manner, when the third operation of the operation unit 40 is performed while the lighting load L1 is turned on at the second dimming level, the dimming control unit 12 turns off the lighting load L1. Also, when the fourth operation of the operation unit 40 is performed during the period from when the lighting load L1 is turned off until the determination time has elapsed, the dimming control unit 12 turns on the lighting load L1 at the first dimming level. By successively performing the third operation and the fourth operation within the determination time in the dimming lighting state, the dimming control unit 12 can turn on the lighting load L1 at the first dimming level different from before the lighting load L1 was turned off, so that the dimming lighting level of the lighting load L1 can be changed with a simple operation.

[0072] Furthermore, when the user performs a fifth operation (B21) of pressing the operation unit 40 for a short time after the determination time has elapsed from the time when the dimming state is switched to the off state, the dimming control unit 12 outputs a control signal S1 to the drive circuit 17 to turn on the lighting load L1 at the same second dimming level as before the lighting was turned off, based on the operation information generated by the operation receiving unit 11. The drive circuit 17 performs reverse phase control to turn on the lighting load L1 at the second dimming level based on the control signal S1, and turns on the lighting load L1 at the second dimming level (ST2).

[0073] In addition, when the user performs a long press operation (B31) of pressing the operation unit 40 for a predetermined set time or more in a state where the lighting load L1 is turned off (ST3: off state), the dimming control unit 12 generates a control signal S1 for turning on the lighting load L1 at the first dimming level based on the operation information generated by the operation reception unit 11. The drive circuit 17 performs reverse phase control to turn on the lighting load L1 at the first dimming level based on the control signal S1, and turns on the lighting load L1 at the first dimming level (ST1). When the operation unit 40 is long pressed in the off state, the dimming control unit 12 turns on the lighting load L1 at the first dimming level, so that the lighting load L1 can be controlled to a full lighting state in which it is turned on at the first dimming level regardless of the dimming lighting level before turning off.

[0074] As described above, the dimming control unit 12 can switch the lighting load L1 to any one of the off state, the dimming state, and the full lighting state in response to the operation of the operation unit 40. Furthermore, when the first to fifth operations are performed, the dimming control unit 12 immediately switches the state of the lighting load L1 to the state corresponding to the operation (any one of the off state, the dimming state, and the full lighting state), so that the user is less likely to feel a delay in the operation of the lighting load L1, and the responsiveness of the control corresponding to the operation can be made faster. Furthermore, when the user performs a long press operation on the operation unit 40 while the lighting load L1 is off, the lighting load L1 is turned on in the full lighting state regardless of the dimming lighting level before the lighting load L1 is turned off, which has the advantage of improving operability.

[0075] (2.3.2) Setting mode Next, the operation of the setting mode for setting the dimming level in the dimming state (that is, the second dimming level) will be described with reference to the state transition diagram of FIG.

[0076] The operation modes of the dimming control unit 12 include a control mode for controlling the lighting load L1 and a setting mode for setting the second dimming level.

[0077] When the user continues to operate the operation unit 40 for a set time or longer in a state (ST1, ST2) in which the dimming control unit 12 turns on the lighting load L1 at the first dimming level or the second dimming level in the control mode, the dimming control unit 12 switches the operation mode from the control mode to the setting mode. That is, when the user performs a long press operation of pressing the operation unit 40 for a set time or longer in the dimming lighting state (ST2) or the full lighting state (ST1), the dimming control unit 12 switches the operation mode from the control mode to the setting mode.

[0078] When the operation mode of the dimming control unit 12 is switched from the control mode to the setting mode, the dimming control unit 12 starts a sweep control for sweeping the dimming level of the lighting load L1 between the lower limit level and the upper limit level of the dimming range while the operation unit 40 is being pressed and held. More specifically, the dimming control unit 12 generates a control signal S1 for repeatedly performing a sweep control in which the dimming level of the lighting load L1 gradually becomes brighter from the lower limit level to the upper limit level and then gradually becomes darker from the upper limit level to the lower limit level while the operation unit 40 is being pressed and held. At this time, the drive circuit 17 executes a sweep control for sweeping the dimming level of the lighting load L1 between the lower limit level and the upper limit level of the dimming range based on the control signal S1 input from the dimming control unit 12 (ST4). In this way, when the operating mode of the dimming control unit 12 is the setting mode, the dimming control unit 12 performs sweep control to continuously change the dimming lighting level of the lighting load L1 between an upper limit level and a lower limit level while the user continues to operate the operation unit 40.

[0079] In the sweep control state (ST4), when the user stops the long press operation of the operation unit 40 (B41), the dimming control unit 12 outputs a control signal S1 that turns on the lighting load L1 at the dimming level at the time when the operation unit 40 is switched from the continuous operation state in which the operation unit 40 is long pressed to the operation stop state in which the long press operation is stopped. In other words, when the user switches from the continuous operation state in which the operation unit 40 is continued to be operated to the operation stop state in which the operation of the operation unit 40 is stopped, the dimming control unit 12 controls the lighting load L1 to a sweep stop state in which the lighting load L1 is turned on at the dimming level at the time when the continuous operation state is switched to the operation stop state. At this time, the drive circuit 17 operates in a sweep stop state (ST5) in which the lighting load L1 is turned on at the dimming level at the time when the continuous operation state is switched to the operation stop state based on the control signal S1.

[0080] When the user resumes the long press operation of the operation unit 40 (B42) before the predetermined end determination time continues after the start of the sweep stop state (ST5), the processing unit 10 continues the setting mode based on the operation information accepted by the operation acceptance unit 11. The dimming control unit 12 generates a control signal S1 that repeats a sweep control in which the dimming level of the lighting load L1 gradually becomes brighter from the lower limit level to the upper limit level, and then gradually becomes darker from the upper limit level to the lower limit level while the operation unit 40 is being long pressed. At this time, the drive circuit 17 executes a sweep control that sweeps the dimming level of the lighting load L1 between the lower limit level and the upper limit level of the dimming range based on the control signal S1 input from the dimming control unit 12 (ST4: sweep control state). In other words, the dimming control unit 12 resumes the sweep control when the user returns to a continuous operation state in which the operation unit 40 continues to be operated by the user before the sweep stop state (ST5) continues for the end determination time. Therefore, during the period from when the sweep is stopped until the end determination time has elapsed, the user can reset the setting of the second dimming level by operating the operation unit 40 continuously for more than the set time, thereby setting the operation unit 40 into a continuous operation state.

[0081] On the other hand, if the operation unit 40 is not operated until the predetermined end determination time continues from the start of the sweep stop state (B43), the setting unit 13 stores the dimming level at the time when the continuous operation state is switched to the operation stop state in the memory unit 21 as the setting value of the second dimming level, and the dimming control unit 12 switches the operation mode from the setting mode to the control mode. At this time, the dimming control unit 12 generates a control signal S1 for turning on the lighting load L1 at the updated second dimming level and outputs it to the drive circuit 17, and the drive circuit 17 performs reverse phase control to turn on the lighting load L1 at the second dimming level based on the control signal S1, and turns on the lighting load L1 at the second dimming level (ST2). In other words, when the sweep stop state continues for the end determination time, the memory unit 21 stores the dimming level in the sweep stop state as a new setting value of the second dimming level. Then, the dimming control unit 12 switches the operation mode from the setting mode to the control mode and turns on the lighting load L1 at the second dimming level.

[0082] As described above, when the lighting load L1 is turned on at the first dimming level or the second dimming level (ST1, ST2) and the user performs a long press on the operation unit 40, the dimming control unit 12 operates in the setting mode, and the second dimming level can be set to the desired dimming lighting level.

[0083] (2.3.3) Timer control Next, the timer control performed by the switch device 1 will be described.

[0084] When the front cover 60 is rotated to the first position covering the front surface of the handle body 50, the buttons 19A to 19D of the timer setting section 19 are covered by the front cover 60, so that settings relating to timer control cannot be made.

[0085] When the user performs settings related to timer control, the user rotates the front cover 60 to the second position to expose the front surface of the handle body 50. At this time, the display on the display unit 20 becomes visible, and the buttons 19A to 19D of the timer setting unit 19 become operable.

[0086] When the user presses button 19B, for example, the device enters a state in which the light-on time or the light-off time can be set, and setting unit 13 displays the current setting value of the light-on time or the light-off time on display unit 20. While viewing the current setting value displayed on display unit 20, the user presses button 19C or 19D to advance or delay the setting value of the light-on time or the light-off time, thereby adjusting the setting value.

[0087] Furthermore, the user presses the button 19A to switch whether or not the switch device 1 executes timer control.

[0088] When the state in which timer control is not performed is switched in response to the operation of button 19A, the timer control unit 14 does not perform timer control, and the dimming control unit 12 switches the lighting load L1 to one of an off state, a dimmed on state, or a fully on state in response to the operation of the operation unit 40.

[0089] On the other hand, when the state is switched to one in which timer control is executed in response to the operation of the button 19A, the timer control unit 14 enters a state in which the lighting load L1 can be operated in response to the timer control setting by the timer setting unit 19. Note that even when the timer control is executed, the dimming control unit 12 can switch the lighting load L1 to any one of an off state, a dimmed on state, and a fully on state in response to the operation of the operation unit 40.

[0090] The timer control unit 14 has a clock unit that measures the current time, and when the current time becomes the lighting time, outputs a control signal S1 to the drive circuit 17 to turn on all the lighting loads L1, and the drive circuit 17 controls the switch unit SW1 in reverse phase to turn on all the lighting loads L1.

[0091] Thereafter, when the current time becomes the turn-off time, the timer control unit 14 outputs a control signal S1 for turning off the lighting load L1 to the drive circuit 17, thereby turning off the drive circuit 17.

[0092] In this way, the timer control unit 14 automatically turns on the lighting load L1 from the on time to the off time set by the timer setting unit 19, so that even when no one is present in the facility in which the lighting load L1 is installed, it is possible to make it appear as if someone is present.

[0093] (3) Modifications The switch device 1 in the present disclosure includes a computer system. The computer system is mainly composed of a processor and a memory as hardware. The processor executes a program recorded in the memory of the computer system, thereby realizing each function of the processing unit 10 in the present disclosure. The program may be pre-recorded in the memory of the computer system, may be provided through an electric communication line, or may be provided by being recorded in a non-transitory recording medium such as a memory card, an optical disk, or a hard disk drive that can be read by the computer system. The processor of the computer system is composed of one or more electronic circuits including a semiconductor integrated circuit (IC) or a large scale integrated circuit (LSI). The integrated circuits such as IC or LSI referred to here are called by different names depending on the degree of integration, and include integrated circuits called system LSI, VLSI (Very Large Scale Integration), or ULSI (Ultra Large Scale Integration). Furthermore, a field-programmable gate array (FPGA) that is programmed after the manufacture of the LSI, or a logic device that can reconfigure the connection relationship inside the LSI or reconfigure the circuit partition inside the LSI, can also be adopted as a processor. The electronic circuits may be integrated in one chip, or may be distributed among multiple chips. The multiple chips may be integrated into one device, or may be distributed across multiple devices. The computer system referred to here includes a microcontroller having one or more processors and one or more memories. Therefore, the microcontroller is also composed of one or more electronic circuits including a semiconductor integrated circuit or a large-scale integrated circuit.

[0094] In the above embodiment, the first dimming level is a dimmed lighting level of 100%, but the first dimming level may also be set to any level between the lower limit level and the upper limit level of the dimming range.

[0095] In the above embodiment, the first to fifth operations are all short-press operations in which the operation unit 40 is pressed once for a time shorter than a set time, but the operation contents of the first to fifth operations can be changed as appropriate. The operation contents of the first to fifth operations do not all need to be the same, and some or all of the first to fifth operations may be different from each other.

[0096] In the above embodiment, the operation unit 40 is the handle unit 41 that is pressed by the user, but it may be a push button switch arranged in an operable state on the front surface of the main body 30. The operation unit 40 may be a touch panel that can detect an operation in which the user touches the operation surface. The operation in which the user touches the operation surface includes a tap operation, a double tap operation, a swipe operation, a click operation, and the like. When the operation unit 40 is a touch panel, it is preferable that the first to fifth operations performed by the user using the operation unit 40 are, for example, a tap operation in which the user touches the operation surface for a short time. Note that the first to fifth operations detected by the touch panel may be the same type of operation or different types of operations.

[0097] (summary) The above-described embodiments and the like disclose the following aspects.

[0098] The switch device (1) of the first embodiment includes a main body (30), a dimming control unit (12), and a storage unit (21). An operation unit (40) operable by a user is provided on the front surface of the main body (30). The dimming control unit (12) performs dimming control of the lighting load (L1). The storage unit (21) stores a set value of a first dimming level and a set value of a second dimming level different from the first dimming level as dimming lighting levels of the lighting load (L1). When a first operation of the operation unit (40) is performed while the lighting load (L1) is turned on at the first dimming level, the dimming control unit (12) turns off the lighting load (L1). When a second operation of the operation unit (40) is performed during the period from when the lighting load (L1) is turned off until a determination time has elapsed, the dimming control unit (12) turns on the lighting load (L1) at the second dimming level.

[0099] According to this aspect, it is possible to provide a switch device (1) capable of improving the responsiveness until control corresponding to an operation is executed.

[0100] The switch device (1) of the second embodiment is the same as that of the first embodiment, and further includes a switch unit (SW1) connected between the lighting load (L1) and the AC power supply (PS1). When dimming the lighting load (L1), the dimming control unit (12) controls the switch unit (SW1) from an OFF state to an ON state when detecting a zero cross of the AC voltage of the AC power supply (PS1), and controls the switch unit (SW1) from an ON state to an OFF state when an ON time according to the dimming level has elapsed since the zero cross of the AC voltage.

[0101] According to this embodiment, the power supplied to the lighting load (L1) can be controlled by controlling the switch unit (SW1) in reverse phase. Also, since the switch unit (SW1) can be switched from the OFF state to the ON state near the zero crossing of the AC voltage, noise generated during switching can be reduced.

[0102] In the switch device (1) of the third aspect, in the first or second aspect, when a third operation of the operation unit (40) is performed in a state in which the lighting load (L1) is turned on at the second dimming level, the dimming control unit (12) turns off the lighting load (L1). When a fourth operation of the operation unit (40) is performed during the period from when the lighting load (L1) is turned off until the determination time has elapsed, the dimming control unit (12) turns on the lighting load (L1) at the first dimming level.

[0103] According to this aspect, it is possible to provide a switch device (1) capable of improving the responsiveness until control corresponding to an operation is executed.

[0104] In the switch device (1) of the fourth aspect, in any one of the first to third aspects, the first dimming level is the upper limit level of the dimming range of the dimming lighting level.

[0105] According to this embodiment, the lighting load (L1) can be turned on at the first dimming level, which is the upper limit level of the dimming range, or at the second dimming level.

[0106] In the switch device (1) of the fifth aspect, in any one of the first to fourth aspects, the operation unit (40) is either a handle unit (41) or a touch panel. The handle unit (41) is operably provided on the main body (30) for pressing the tact switch (18) arranged on the front surface of the main body (30). The touch panel is capable of detecting a touch operation in which a user touches an operation surface.

[0107] According to this aspect, it is possible to provide a switch device (1) capable of improving the responsiveness until a control corresponding to an operation of the handle unit (41) or the touch panel is executed.

[0108] In the switch device (1) of the sixth aspect, in any of the first to fifth aspects, the operation modes of the dimming control unit (12) include a control mode for controlling the lighting load (L1) and a setting mode for setting a second dimming level. When the user continues to operate the operation unit (40) for a set time or longer while the dimming control unit (12) is turning on the lighting load (L1) at the first dimming level or the second dimming level in the control mode, the dimming control unit (12) switches the operation mode from the control mode to the setting mode.

[0109] According to this embodiment, the second dimming level can be set to a desired dimming lighting level by operating the dimming control section (12) in the setting mode.

[0110] In the switch device (1) of the seventh aspect, in the sixth aspect, when the operation mode of the dimming control unit (12) is the setting mode, the dimming control unit (12) performs sweep control to continuously change the dimming lighting level of the lighting load (L1) between an upper limit level and a lower limit level while the user continues to operate the operation unit (40). When the user switches from a continuous operation state in which the user continues to operate the operation unit (40) to an operation stop state in which the user stops operating the operation unit (40), the dimming control unit (12) controls the lighting load (L1) to a sweep stop state in which the lighting load (L1) is turned on at the dimming lighting level at the time of switching from the continuous operation state to the operation stop state.

[0111] According to this embodiment, the second dimming level can be set to a desired dimming lighting level.

[0112] In the switch device (1) of the eighth aspect, in the seventh aspect, the dimming control unit (12) resumes the sweep control when the user returns to a continuous operation state in which he or she continues to operate the operation unit (40) before the sweep stop state continues for the end determination time.

[0113] According to this embodiment, the second dimming level can be set again.

[0114] In the switch device (1) of the ninth aspect, when the sweep stop state continues for the end determination time in the eighth aspect, the memory unit (21) stores the dimming level in the sweep stop state as a new setting value of the second dimming level. The dimming control unit (12) switches the operation mode from the setting mode to the control mode and turns on the lighting load (L1) at the second dimming level.

[0115] According to this embodiment, the second dimming level can be set to a desired dimming lighting level.

[0116] In the switch device (1) of the tenth aspect, in any of the first to ninth aspects, when a fifth operation of the operation unit (40) is performed while the lighting load (L1) has been turned off for a determination time or longer, the dimming control unit (12) turns on the lighting load (L1) at the dimming level at which the lighting load (L1) was on before it was turned off.

[0117] According to this embodiment, when the lighting load (L1) has been turned off for a determination time or longer, the lighting load (L1) can be turned on at the dimmed lighting level before being turned off in response to the fifth operation of the operating unit (40).

[0118] A lighting system (100) of an eleventh aspect includes a switch device (1) of any one of the first to tenth aspects and a lighting load (L1).

[0119] According to this aspect, it is possible to provide a lighting system (100) capable of improving the responsiveness until control corresponding to an operation is executed.

[0120] The configurations according to the second to tenth aspects are not essential to the switch device (1) and may be omitted as appropriate. [Explanation of symbols]

[0121] 1 Switching device 12 Dimming control unit 18 Tactile Switch 21 Memory section 30 Main unit 40 Control section 41 Handle unit 100 Lighting System L1 lighting load PS1 AC power supply SW1 Switch section

Claims

1. A main body having an operation unit on a front surface thereof that can be operated by a user; A dimming control unit that performs dimming control of a lighting load; a storage unit configured to store, as dimming lighting levels of the lighting load, a setting value of a first dimming level and a setting value of a second dimming level different from the first dimming level; The light control unit is When a first operation of the operation unit is performed in a state in which the lighting load is turned on at the first dimming level, the lighting load is turned off; When a second operation of the operation unit is performed during a period from when the lighting load is turned off until a determination time has elapsed, the lighting load is turned on at the second dimming level. Switch device.

2. A switch unit connected between the lighting load and an AC power source, When the dimming control unit controls the switch unit from an off state to an on state when detecting a zero cross of the AC voltage of the AC power supply, and controls the switch unit from an on state to an off state when an on time corresponding to the dimming lighting level has elapsed since the zero cross of the AC voltage. The switch device according to claim 1 .

3. The light control unit is When the third operation of the operation unit is performed in a state in which the lighting load is turned on at the second dimming level, the lighting load is turned off, When a fourth operation of the operation unit is performed during the period from when the lighting load is turned off until the determination time has elapsed, the lighting load is turned on at the first dimming level. The switch device according to claim 1 .

4. The first dimming level is an upper limit level of a dimming range of the dimming lighting level. The switch device according to claim 1 .

5. The operation unit is either a handle unit operably provided on the main body for pressing a tact switch arranged on the front surface of the main body, or a touch panel capable of detecting a touch operation by the user touching an operation surface. The switch device according to claim 1 .

6. an operation mode of the dimming control unit includes a control mode for controlling the lighting load and a setting mode for setting the second dimming level; When the user continues to operate the operation unit for a set time or longer in a state in which the dimming control unit turns on the lighting load at the first dimming level or the second dimming level in the control mode, the dimming control unit switches the operation mode from the control mode to the setting mode. The switch device according to claim 1 .

7. When the operation mode of the dimming control unit is the setting mode, The light control unit is performing a sweep control for continuously changing the dimming lighting level of the lighting load between an upper limit level and a lower limit level while the user continues to operate the operation unit; When the user switches from a continuous operation state in which the user continues to operate the operation unit to an operation stop state in which the user stops operating the operation unit, the control is performed to a sweep stop state in which the lighting load is turned on at the dimming lighting level at the time when the user switches from the continuous operation state to the operation stop state. The switch device according to claim 6.

8. When the continuous operation state in which the user continues to operate the operation unit is returned to before the sweep stop state continues for an end determination time, the light adjustment control unit resumes the sweep control. The switch device according to claim 7.

9. When the sweep stop state continues for the end determination time, The storage unit stores the dimming lighting level in the sweep stop state as a new setting value of the second dimming level, the dimming control unit switches the operation mode from the setting mode to the control mode and turns on the lighting load at the second dimming level. The switch device according to claim 8.

10. The light control unit is When a fifth operation of the operation unit is performed in a state in which the turned-off state of the lighting load continues for the determination time or more, the lighting load is turned on at a dimming level at which the lighting load was turned on before being turned off. The switch device according to claim 1 .

11. A switch device according to any one of claims 1 to 10; The lighting load. Lighting system.

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