Illumination system

Abstract

To easily adjust light color and light brightness to meet a user's purpose.SOLUTION: An illumination system 1A includes an illumination device 11A and a switch device 12A. The illumination device 11A emits light into a bathroom R1. The switch device 12A switches between a first state indicating a lighting state of illumination device 11A and a second state in which at least one of the color of light and the brightness of the light is different from that of the first state. The switch device 12A includes marks PA1 and PA2 indicating a user's intention for switching to the second state. The marks PA1 and PA2 are provided on the surface of the switch device 12A.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a lighting system. [Background technology]

[0002] The lighting device of Patent Document 1 has two or more illumination lights, and by remotely operating a first operating unit, dimming control is performed to simultaneously increase or decrease the intensity of the two or more illumination lights, and color adjustment control is performed to simultaneously bring the two or more illumination lights closer to the same color. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2019-046547 Summary of the Invention [Problem to be solved by the invention]

[0004] The lighting device of Patent Document 1 can bring two or more illumination lights closer to a preset illuminance through dimming control, and can bring two or more illumination lights closer to a preset color temperature through color adjustment control.

[0005] On the other hand, the lighting device of Patent Document 1 does not have any symbols or the like indicating the preset illuminance or color temperature, so the preset illuminance or color temperature may not suit the purpose of the person remotely operating the first operating unit.

[0006] The present invention has been made in consideration of the above-mentioned problems, and its object is to provide a lighting system that can easily adjust the color and brightness of light to match the user's purpose. [Means for solving the problem]

[0007] The lighting system according to the present invention includes a lighting device and a switch device. The lighting device emits light into a space. The switch device switches between a first state indicating a lighting state of the lighting device and a second state in which at least one of the color of the light and the brightness of the light differs from the first state. The switch device includes a first indicator indicating a user's intention for switching to the second state. The first indicator is provided on a surface of the switch device.

[0008] In the lighting system according to the present invention, the lighting device preferably includes a first light source unit that emits visible light, the switch device preferably includes a first switch that switches the first light source unit to the second state when a first operation is received, and the first indicator preferably is disposed at a position corresponding to the first switch.

[0009] In the lighting system according to the present invention, it is preferable that the lighting device further includes a control device that controls the first light source unit. When the first switch receives the first operation, it is preferable that the first switch outputs an operation signal indicating receipt of the first operation to the control device. When the control device receives the operation signal, it is preferable that the control device adjusts at least one of the color and brightness of the visible light emitted from the first light source unit based on the operation signal.

[0010] In the lighting system according to the present invention, it is preferable that the lighting device further includes a second light source unit that emits ultraviolet light. It is preferable that the switch device includes a second switch that switches the second light source between an on state and an off state when a second operation is received, and a second indicator that indicates a user's purpose for switching the second light source to the on state. It is preferable that the second indicator is disposed at a position corresponding to the second switch.

[0011] In the lighting system according to the present invention, it is preferable that when the second light source is in a lighting state, switching of the first light source unit is restricted. [Effects of the Invention]

[0012] According to the present invention, it becomes possible to easily adjust the color and brightness of light to suit the user's purpose. [Brief explanation of the drawings]

[0013] [Figure 1] 1 is a diagram showing a lighting system according to a first embodiment of the present invention. [Figure 2] 1 is a diagram illustrating a switch device according to a first embodiment of the present invention. [Figure 3] 1 is a functional block diagram of a lighting system according to a first embodiment of the present invention. [Figure 4] FIG. 10 is a diagram showing a lighting system according to a second embodiment of the present invention. [Figure 5] FIG. 10 is a diagram illustrating a switch device according to a second embodiment of the present invention. [Figure 6] FIG. 10 is a functional block diagram of a lighting system according to a second embodiment of the present invention. [Figure 7] FIG. 10 is a diagram showing a lighting system according to a third embodiment of the present invention. [Figure 8] FIG. 10 is a diagram illustrating a switch device according to a third embodiment of the present invention. [Figure 9] FIG. 10 is a functional block diagram of a lighting system according to a third embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0014] Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the drawings, the same or corresponding parts are designated by the same reference characters and description thereof will not be repeated.

[0015] [Embodiment 1] A lighting system 1A according to a first embodiment of the present invention will be described with reference to Fig. 1 and Fig. 2. Fig. 1 is a diagram showing a lighting system 1A according to a first embodiment of the present invention. Fig. 2 is a diagram showing a switch device 12A according to the first embodiment of the present invention.

[0016] As shown in FIG. 1, a lighting system 1A is installed in a bathroom R1. The lighting system 1A includes a lighting device 11A and a switch device 12A. The lighting device 11A emits light into the bathroom R1. The bathroom R1 is an example of a space. The switch device 12A switches the lighting device 11A between an on state and an off state. The lighting device 11A is, for example, a ceiling light, a wall light, or a downlight. The type, shape, and size of the lighting device 11A are not particularly limited. In the lighting system 1A shown in FIG. 1, the lighting device 11A is a wall light.

[0017] In the lighting system 1A shown in FIG. 1, the switch device 12A is a controller unit disposed on the wall of the bathroom R1. As shown in FIG. 2, the switch device 12A includes a housing 13A and four switches S, SA1, SA2, and SA3. The switches S, SA1, SA2, and SA3 are disposed on the operation surface of the housing 13A. The switches S, SA1, SA2, and SA3 receive user operations. The arrangement of the switches S, SA1, SA2, and SA3 on the housing 13A is not particularly limited. As an example, in the switch device 12A shown in FIG. 2, the switch S is disposed in the upper right position on the operation surface of the housing 13A. The switches SA1, SA2, and SA3 are disposed horizontally below the switch S on the operation surface of the housing 13A. The switches SA1, SA2, and SA3 are disposed in this order from left to right, but the arrangement order of the switches SA1, SA2, and SA3 is not particularly limited. Furthermore, there are no particular limitations on the type, shape, and size of the housing 13A and the switches S, SA1, SA2, and SA3. In the switch device 12A shown in Fig. 2, the switches S, SA1, SA2, and SA3 are rectangular push button switches.

[0018] Next, switching of the lighting state of the lighting device 11A by the switch device 12A will be described with reference to Figures 1 to 3. Figure 3 is a functional block diagram of a lighting system 1A according to the first embodiment of the present invention.

[0019] 3, the lighting device 11A includes a first light source unit 110A, a second light source unit 120A, a power supply unit 200A, and a control unit 300A. The first light source unit 110A, the second light source unit 120A, the power supply unit 200A, and the control unit 300A are disposed in a housing (not shown), and are covered by a light-transmitting cover (not shown).

[0020] The first light source unit 110A emits visible light. Specifically, the first light source unit 110A emits light having wavelengths in the visible light range that can be seen by humans. More specifically, the first light source unit 110A has a first light source circuit 130A. One or more light-emitting elements 100A that emit light are arranged in the first light source circuit 130A. The light-emitting elements 100A are, for example, LEDs (Light Emitting Diodes). In this embodiment, the light-emitting elements 100A can be switched between multiple colors under the control of a control unit 300A, which will be described later.

[0021] The second light source unit 120A emits ultraviolet light. Specifically, the second light source unit 120A emits light having a wavelength in the ultraviolet range that is invisible to humans. More specifically, the second light source unit 120A has a second light source circuit 130B. The second light source circuit 130B has one or more light-emitting elements 100B arranged therein, each of which emits ultraviolet light of a specific wavelength.

[0022] The power supply unit 200A generates power for lighting the first light source unit 110A and the second light source unit 120A and power for driving the control unit 300A based on AC power supplied from an AC power supply, and outputs the generated power to the control unit 300A. The power supply unit 200A is, for example, an AC / DC converter.

[0023] 2 and 3, switches S, SA1, SA2, and SA3 have unique functions. Switch S is a power switch. A mark PA indicating that the switch S is a power switch is provided on switch S. When a user presses switch S to turn it on, AC power is supplied from an AC power source (not shown) to lighting device 11A, and lighting device 11A can be switched between a lit state and an extinguished state by switch device 12A.

[0024] The switches SA1 and SA2 control the lighting state of the first light source unit 110A, and the switch SA3 controls the lighting state of the second light source unit 120A.

[0025] Each of the switches SA1, SA2, and SA3 is electrically connected to the control unit 300A and, for example, switches between on and off each time the user presses it. Each of the switches SA1, SA2, and SA3 is switchably connected to a power supply potential or a reference potential (ground), not shown, and outputs either the power supply potential or the reference potential to the control unit 300A depending on whether each of the switches SA1, SA2, and SA3 is on or off. The switches SA1 and SA2 are an example of a first switch. The switch SA3 is an example of a second switch.

[0026] Pressing each of the switches SA1 and SA2 by a user is an example of a first operation. That is, when the switches SA1 and SA2 receive a first operation to switch between on and off, they output either the power supply potential or the reference potential to the control unit 300A as an operation signal indicating the reception of the first operation.

[0027] Pressing the switch SA3 by a user is an example of the second operation. That is, when the switch SA3 receives the second operation of switching on or off, the switch SA3 outputs either the power supply potential or the reference potential to the control unit 300A as an operation signal indicating the reception of the second operation.

[0028] The control unit 300A determines the on / off states of the switches SA1, SA2, and SA3 based on an operation signal output from each of the switches SA1 and SA2 or the switch SA3, and supplies DC power to at least one of the first light source unit 110A and the second light source unit 120A based on the determination result. The control unit 300A also adjusts the lighting state of the first light source unit 110A or the lighting state of the second light source unit 120A.

[0029] The switch SA1 is a switch for turning on the lighting device 11A, which has been adjusted to a color and brightness of light suitable for a "full-body bath." The switch SA2 is a switch for turning on the lighting device 11A, which has been adjusted to a color and brightness of light suitable for "cleaning." The color and brightness of light suitable for "cleaning" differ from the color and brightness of light suitable for a "full-body bath" in at least one of the color and brightness of light.

[0030] Hereinafter, the color and brightness of light suitable for "full-body bathing" may be referred to as "dimming 1," and the color and brightness of light suitable for "cleaning" may be referred to as "dimming 2." In this embodiment, "dimming 1" is an example of the first state, and "dimming 2" is an example of the second state. Note that the first state and the second state may be reversed. In other words, "dimming 1" may be an example of the second state, and "dimming 2" may be an example of the first state. In this way, the switch device 12A switches between the first state and the second state in response to the user pressing each of the switches SA1 and SA2.

[0031] As an example, the light color of "Dimming 2" is adjusted to a color (daylight) that is more blue than the light color (daylight white) of "Dimming 1," and the brightness of "Dimming 2" is adjusted to be brighter than the brightness of "Dimming 1."

[0032] For example, as shown in FIG. 2, the switch device 12A includes a mark PA1 indicating that the device is suitable for a "full-body bath" situation and a mark PA2 indicating that the device is suitable for a "cleaning" situation. In other words, the surface of the switch device 12A is provided with a mark PA1 indicating the user's purpose of a "full-body bath" and a mark PA2 indicating the user's purpose of "cleaning." In this embodiment, the marks PA1 and PA2 are pictograms indicating "full-body bath" and "cleaning," respectively. Note that the marks PA1 and PA2 are not limited to pictograms but include various symbols such as letters, symbols, figures, illustrations, and images. The marks PA1 and PA2 are examples of a first display.

[0033] In this way, the marks PA1 and PA2 each indicate the purpose of switching to the second state. The marks PA1 and PA2 are provided on the surface of the switch device 12A. Therefore, the user can easily understand the environment or state suitable for using the lighting device 11A adjusted to the second state. As a result, the user can easily adjust the lighting device 11A to the light color and light brightness that match the user's purpose.

[0034] Specifically, mark PA1 is provided on the surface of switch SA1. Mark PA2 is provided on the surface of switch SA2. In other words, mark PA1 is located at a position corresponding to switch SA1, and mark PA2 is located at a position corresponding to switch SA2. Therefore, in lighting device 11A that can be switched to multiple lighting states, the correspondence between the multiple switches and the multiple lighting states can be easily understood, reducing the possibility of a user making an erroneous operation.

[0035] For example, when a user presses switch SA1, switch SA1 outputs an operation signal to control unit 300A as described above. When control unit 300A receives operation signal SG1 in response to the pressing of switch SA1, it adjusts at least one of the color and brightness of the visible light emitted from first light source unit 110A based on operation signal SG1. This allows a single first light source unit 110A to achieve multiple lighting patterns, reducing the number of parts and making lighting device 11A more compact.

[0036] For example, the control unit 300A includes a logic operation circuit such as an FPGA (Field-Programmable Gate Array). The control unit 300A may also include a storage device such as a non-volatile memory for storing data. The control unit 300A is an example of a control device. The storage device stores setting information J1 and setting information J2 corresponding to "Dimming 1" and "Dimming 2," respectively. The setting information J1 includes information indicating the emission color of the light-emitting element 100A of the first light source unit 110A in the "Dimming 1" lighting state, the amount of current to be passed through the light-emitting element 100A of the first light source unit 110A, and the like in the "Dimming 2" lighting state. The setting information J2 includes information indicating the emission color of the light-emitting element 100A of the first light source unit 110A in the "Dimming 2" lighting state, the amount of current to be passed through the light-emitting element 100A of the first light source unit 110A, and the like.

[0037] When the control unit 300A receives an operation signal SG1 in response to pressing the switch SA1, it refers to the storage device and acquires setting information J1. The control unit 300A controls the first light source unit 110A based on the acquired setting information J1. As a result, the first light source unit 110A transitions to the "dimming 1" lighting state (first state).

[0038] On the other hand, when the user presses switch SA2, switch SA2 outputs an operation signal to control unit 300A as described above. When control unit 300A receives operation signal SG2 in response to the pressing of switch SA2, it adjusts at least one of the color and brightness of the visible light emitted from first light source unit 110A based on the operation signal SG2. Specifically, when control unit 300A receives operation signal SG2 in response to the pressing of switch SA2, it refers to the storage device and acquires setting information J2. Based on the acquired setting information J2, control unit 300A controls first light source unit 110A. As a result, first light source unit 110A transitions to the "dimming 2" lighting state (second state).

[0039] The user's purpose is not limited to "full-body bathing" and "cleaning." For example, the user's purpose may include "half-body bathing." In this case, the switch device 12A further includes a switch that switches the first light source unit 110A to a state in which the color and brightness of light suitable for "full-body bathing" or the color and brightness of light suitable for "cleaning" are at least different, and a mark indicating "half-body bathing" is provided at a position corresponding to the switch.

[0040] Furthermore, when the user presses the switch SA3, the switch SA3 outputs an operation signal to the control unit 300A as described above. When the control unit 300A receives the operation signal SG3 in response to the pressing of the switch SA3, light is emitted from the second light source unit 120A based on the operation signal SG3.

[0041] Switch SA3 is a switch that switches second light source unit 120A between an on state and an off state in order to "sterilize" bathroom R1. As shown in FIG. 2, switch device 12A includes mark PA3 indicating "sterilization." In other words, mark PA3 indicating "sterilization," which is the user's purpose for switching second light source unit 120A to the on state, is provided on the surface of switch SA3 of switch device 12A. Therefore, in lighting device 11A that can emit ultraviolet light in addition to visible light, it is easy to distinguish between switches related to visible light and switches related to ultraviolet light, reducing the possibility of user operation errors.

[0042] When the control unit 300A receives an operation signal SG3 in response to the pressing of the switch SA3, it switches the second light source unit 120A between an on state and an off state depending on the state of the second light source unit 120A. Specifically, when the second light source unit 120A is in the off state, the control unit 300A switches the second light source unit 120A to the on state when it receives the operation signal SG3 in response to the pressing of the switch SA3. More specifically, the control unit 300A controls the light-emitting element 100B of the second light source unit 120A to emit light. As a result, the second light source unit 120A transitions to the on state.

[0043] On the other hand, when the second light source unit 120A is in the ON state, the control unit 300A switches the second light source unit 120A to the OFF state upon receiving the operation signal SG3 in response to pressing the switch SA3. More specifically, the control unit 300A controls the light emitting element 100B of the second light source unit 120A to stop emitting light. As a result, the second light source unit 120A transitions to the OFF state.

[0044] In this embodiment, a priority may be assigned to operations on the switches SA1 and SA2 used to control the first light source unit 110A and operations on the switch SA3 used to control the second light source unit 120A.

[0045] For example, when the second light source unit 120A is in the on state, the switching between the first state and the second state of the first light source unit 110A is restricted. Specifically, when the second light source unit 120A is in the on state, the control unit 300A does not switch the first light source unit 110A to the second state even when the control unit 300A receives the operation signal SG1 or SG2. In this case, the control unit 300A may store the reception of the operation signal SG1 or SG2 in a storage device, and after the second light source unit 120A transitions to the off state, switch the first light source unit 110A to the second state in response to the operation signal SG1 or SG2.

[0046] Conversely, when the first light source unit 110A is in the first state or the second state, the control unit 300A may be configured not to switch the state to that of the second light source unit 120A even when the operation signal SG3 is received.

[0047] Furthermore, when the switch SA3 has a backlight and the second light source unit 120A is in a lit state, the control unit 300A may control the backlight to emit light. As a result, the mark PA3 provided on the switch SA3 emits light in response to the backlight being turned on. Generally, light in the ultraviolet wavelength band is difficult for the human eye to perceive, so it is difficult for a user to know that ultraviolet light is being emitted even by visually inspecting the second light source unit 120A. Therefore, when the mark PA3 emits light, the user can know that ultraviolet light is being emitted from the second light source unit 120A.

[0048] Furthermore, switch SA3 may be physically difficult to operate, for example, by being covered with a cover. Furthermore, the operation of switches SA1 and SA2 may be different from the operation of switch SA3. Specifically, control unit 300A may switch the state of second light source unit 120A only when switch SA3 is pressed for a predetermined period of time or longer.

[0049] Furthermore, the control unit 300A may control devices external to the lighting system 1A in conjunction with an operation on the switch SA3. For example, the control unit 300A may be configured to lock the door of the bathroom R1 in which the lighting system 1A is placed when the second light source unit 120A is turned on.

[0050] With the above configuration, it is possible to alert the user that ultraviolet light is being emitted from the second light source unit 120A.

[0051] [Embodiment 2] Next, a lighting system according to embodiment 2 of the present invention will be described. Embodiment 2 differs from embodiment 1 in the space in which the lighting system is installed and the control process of the lighting devices in the lighting system. Below, differences between embodiment 2 and embodiment 1 will be described, and explanations of matters that overlap with embodiment 1 will be omitted.

[0052] A lighting system 1B according to a second embodiment of the present invention will be described with reference to Fig. 4 to Fig. 6. Fig. 4 is a diagram showing the lighting system 1B according to the second embodiment of the present invention. Fig. 5 is a diagram showing a switch device 12B according to the second embodiment of the present invention. Fig. 6 is a functional block diagram of the lighting system 1B according to the second embodiment of the present invention.

[0053] As shown in FIG. 4, the lighting system 1B is installed in a space different from that of the lighting system 1A. As an example, the lighting system 1B is installed in a bedroom R2. The lighting system 1B includes a lighting device 11B and a switch device 12B. The lighting device 11B emits light into the bedroom R2. The switch device 12B switches the lighting device 11B between an on state and an off state. As shown in FIG. 6, the lighting device 11B and the switch device 12B differ from the lighting device 11A and the switch device 12A in their internal configurations and control methods, respectively. Specifically, the lighting system 1A employs electronic control using the lighting device 11A and the switch device 12A, while the lighting system 1B employs mechanical control using the lighting device 11B and the switch device 12B.

[0054] The type, shape, and size of the lighting device 11B are not particularly limited, similar to the lighting device 11A. In the lighting system 1B shown in Fig. 4, the lighting device 11B is a ceiling light.

[0055] 5 and 6, the illumination device 11B includes two first light source units 110C and 110D and a power supply unit 200B. The power supply unit 200B is the same as the power supply unit 200A except that the output destination of the generated power is different.

[0056] The first light source unit 110C has a first light source circuit 130C. One or more light emitting elements 100C that emit light of a predetermined color are arranged in the first light source circuit 130C. The light emitting elements 100C are, for example, LEDs (Light Emitting Diodes). In this embodiment, the predetermined color and predetermined brightness are suitable for "waking up." The light color suitable for waking up is preferably light with a high color temperature, for example, around 5000 Kelvin. The brightness of light suitable for waking up is preferably as high as possible.

[0057] The first light source unit 110D includes a first light source circuit 130D. The first light source circuit 130D includes one or more light emitting elements 100D that emit light of a different color from the light emitting element 100C. For example, the number of light emitting elements 100D included in the first light source circuit 130D is different from the number of light emitting elements 100C included in the first light source circuit 130C. This allows the first light source unit 110C and the first light source unit 110D to emit light at different brightness levels. The light emitting element 100D is, for example, an LED (Light Emitting Diode). In this embodiment, the color and brightness emitted by the light emitting element 100D are suitable for "sleeping." The light color suitable for sleeping is preferably light with a low color temperature, for example, around 2500 Kelvin. The brightness of light suitable for sleeping is preferably lower in luminance.

[0058] In the lighting system 1B shown in FIG. 4, the switch device 12B is a wall switch disposed on the wall of the bedroom R2. As shown in FIG. 5, the switch device 12B includes a housing 13B embedded in the wall of the bedroom R2 and two switches SB1 and SB2. The switches SB1 and SB2 are disposed on the operation surface of the housing 13B. The switches SB1 and SB2 receive user operations. The arrangement of the switches SB1 and SB2 on the housing 13B is not particularly limited. As an example, in the switch device 12B shown in FIG. 5, the switches SB1 and SB2 are disposed vertically on the operation surface of the housing 13A. The switches SB1 and SB2 are disposed in this order from top to bottom, but the arrangement order of the switches SB1 and SB2 is not particularly limited. Furthermore, the type, shape, and size of the housing 13B and the switches SB1 and SB2 are not particularly limited. In the switch device 12B shown in FIG. 5, the switches SB1 and SB2 are rectangular push-button toggle switches. The switches SB1 and SB2 are examples of first switches.

[0059] The user pressing each of the switches SB1 and SB2 is an example of a first operation, that is, the switches SB1 and SB2 accept a first operation to switch between on and off.

[0060] The switch SB1 is a switch for turning on the lighting device 11B having a light color and brightness suitable for the environment when "going to sleep." The switch SB2 is a switch for turning on the lighting device 11B having a light color and brightness suitable for the environment when "waking up." The color and brightness of the light suitable for "waking up" are different from the color and brightness of the light suitable for "going to sleep" in at least one of the color and brightness of the light. As an example, the brightness of the light when "waking up" is brighter than the brightness of the light when "going to sleep." In this case, the first light source circuit 130D is provided with more light-emitting elements 100D than the number of light-emitting elements 100C provided in the first light source circuit 130C.

[0061] Hereinafter, the color and brightness of light suitable for "wake up" is an example of the first state, and the color and brightness of light suitable for "sleep" is an example of the second state.

[0062] For example, as shown in FIG. 5, the switch device 12B includes a mark PB1 indicating that the switch is suitable for "going to sleep" and a mark PB2 indicating that the switch is suitable for "waking up." In other words, the mark PB1 indicating the user's purpose of "going to sleep" is provided on the surface of the switch SB1 of the switch device 12B. The mark PB2 indicating the user's purpose of "waking up" is provided on the surface of the switch SB2 of the switch device 12B. In this embodiment, the marks PB1 and PB2 are examples of the first display, as are the marks PA1 and PA2.

[0063] The first light source units 110C and 110D are electrically connected to the power supply unit 200B via switches SB1 and SB2, respectively. In this embodiment, a circuit (not shown) is configured to prevent the switches SB1 and SB2 from being turned on at the same time.

[0064] When the user presses the switch SB1 to change from off to on, the first light source unit 110C and the power supply unit 200B become conductive. As a result, power generated by the power supply unit 200B is supplied to the light-emitting element 100C of the first light source unit 110C, causing the light-emitting element 100C to emit light. As a result, the first light source unit 110C transitions to the first state. On the other hand, when the user presses the switch SB1 to change from on to off, the conductivity between the first light source unit 110C and the power supply unit 200B is interrupted, causing the light-emitting element 100C to stop emitting light. As a result, the first light source unit 110C transitions to the off state.

[0065] Furthermore, when the user presses the switch SB2 to change from off to on, the first light source unit 110D and the power supply unit 200B become conductive. As a result, power generated by the power supply unit 200B is supplied to the light-emitting element 100D of the first light source unit 110D, causing the light-emitting element 100D to emit light. As a result, the first light source unit 110D transitions to the second state. On the other hand, when the user presses the switch SB2 to change from on to off, the conductivity between the first light source unit 110D and the power supply unit 200B is interrupted, causing the light-emitting element 100D to stop emitting light. As a result, the first light source unit 110D transitions to the off state.

[0066] [Embodiment 3] Next, a lighting system according to embodiment 3 of the present invention will be described. Embodiment 3 differs from embodiment 1 or 2 in the space in which the lighting system is installed and the control process of the lighting devices in the lighting system. Below, differences between embodiment 3 and embodiment 1 or 2 will be described, and descriptions of matters that overlap with embodiment 1 or 2 will be omitted.

[0067] A lighting system 1C according to a third embodiment of the present invention will be described with reference to Fig. 7 to Fig. 9. Fig. 7 is a diagram showing the lighting system 1C according to the third embodiment of the present invention. Fig. 8 is a diagram showing a switch device 12C according to the third embodiment of the present invention. Fig. 9 is a functional block diagram of the lighting system 1C according to the third embodiment of the present invention.

[0068] As shown in FIG. 7, the lighting system 1C is installed in a space different from that of the lighting system 1A. As an example, the lighting system 1C is installed in a living room R3. The lighting system 1C includes a lighting device 11C and a switch device 12C. The lighting device 11C emits light into the living room R3. The switch device 12C switches the lighting device 11C between an on state and an off state. As shown in FIG. 9, the lighting device 11C and the switch device 12C have internal configurations different from those of the lighting device 11A and the switch device 12A, respectively. Specifically, the lighting device 11C and the switch device 12C are capable of wireless communication with each other.

[0069] The lighting device 11C is not particularly limited in type, shape, or size, similar to the lighting device 11A. In the lighting system 1C shown in Fig. 4, the lighting device 11C is a ceiling light.

[0070] Specifically, as shown in FIG. 9, the illumination device 11C includes a first light source unit 110C, a power supply unit 200C, a control unit 300C, and a communication unit 401C.

[0071] The first light source unit 110C has the same configuration as the first light source unit 110A, and therefore its description will be omitted. The power supply unit 200C has the same configuration as the power supply unit 200A, and therefore its description will be omitted. The control unit 300C has the same configuration as the control unit 300A. However, the control unit 300C is electrically connected to the communication unit 401C, and exchanges data with the communication unit 401C.

[0072] The communication unit 401C is a communication module capable of communicating with the switch device 12C. Communication between the communication unit 401C and the switch device 12C may be two-way communication, or one-way communication from the switch device 12C to the communication unit 401C. For example, the communication unit 401C includes an infrared communication (reception) module and a short-range wireless communication (reception) module.

[0073] In the lighting system 1B shown in FIG. 7, the switch device 12C is a remote control that controls a ceiling light. As shown in FIG. 8, the switch device 12C includes a housing 13C, two switches SC1 and SC2, and a communication unit 402C. The switches SC1 and SC2 are arranged on an operation surface of the housing 13C. The switches SC1 and SC2 receive user operations. The arrangement of the switches SC1 and SC2 on the housing 13C is not particularly limited. As an example, in the switch device 12C shown in FIG. 8, the switches SC1 and SC2 are arranged vertically on the operation surface of the housing 13C. The switches SC1 and SC2 are arranged in this order from top to bottom, but the arrangement order of the switches SC1 and SC2 is not particularly limited. Furthermore, the type, shape, and size of the housing 13C and the switches SC1 and SC2 are not particularly limited. In the switch device 12C shown in FIG. 5, the switches SC1 and SC2 are rectangular pushbutton switches. The switches SC1 and SC2 are examples of first switches.

[0074] Pressing each of the switches SC1 and SC2 by the user is an example of a first operation. That is, when the switches SC1 and SC2 receive a first operation to switch between on and off, they output an operation signal indicating the reception of the first operation to the communication unit 402C.

[0075] The communication unit 402C is a communication module capable of communicating with the communication unit 401C of the lighting device 11C. For example, the communication unit 402C includes an infrared communication (transmission) module and a short-range wireless communication (transmission) module. The communication unit 402C transmits a wireless signal including an operation signal SG received from either the switch SC1 or SC2 to the communication unit 401C.

[0076] The communication unit 401C of the lighting device 11C receives the wireless signal transmitted from the communication unit 402C. The control unit 300A acquires an operation signal SG included in the wireless signal received by the communication unit 402C. The control unit 300C adjusts at least one of the color and brightness of the visible light emitted from the first light source unit 110A based on the acquired operation signal SG. The adjustment process of the first light source unit 110C by the control unit 300C is the same as the adjustment process of the first light source unit 110A by the control unit 300A, and therefore will not be described again.

[0077] 8, the switch device 12C includes a mark PC1a indicating that the device is suitable for a "lively atmosphere" such as a home party, and a mark PC2a indicating that the device is suitable for a "relaxing atmosphere" such as reading. The switch device 12C also includes characters PC1b indicating "party" and characters PC2b indicating "relaxation."

[0078] In other words, a mark PC1a and a character PC1b indicating the user's objective of a "lively atmosphere" and a mark PC2a and a character PC2b indicating the user's objective of a "relaxing atmosphere" are provided on the surface of the switch device 12C. In this embodiment, the marks PC1a, PC2a, PC1b, and PC2b are an example of the first display, as are the marks PA1 and PA2.

[0079] Specifically, mark PC1a is provided above switch SC1 on the operation surface of the housing 13C. Characters PC1b are provided below switch SC1 on the operation surface of the housing 13C. Mark PC2a is provided above switch SC2 on the operation surface of the housing 13C. Characters PC2b are provided below switch SC2 on the operation surface of the housing 13C. In this way, mark PC1a and character PC1b are placed in positions corresponding to switch SA1, and mark PC2a and character PC2b are placed in positions corresponding to switch SA2.

[0080] The embodiments of the present invention have been described above with reference to the drawings. However, the present invention is not limited to the above embodiments and can be implemented in various forms without departing from the spirit of the present invention. Furthermore, the components disclosed in the above embodiments can be modified as appropriate. For example, some of the components shown in one embodiment may be added to the components of another embodiment, or some of the components shown in one embodiment may be deleted from the embodiment.

[0081] Furthermore, the drawings mainly show each component in a schematic manner to facilitate understanding of the invention, and the thickness, length, number, spacing, etc. of each component shown in the drawings may differ from the actual ones due to the convenience of creating the drawings. Furthermore, the configuration of each component shown in the above embodiment is merely an example and is not particularly limited, and it goes without saying that various modifications are possible within a range that does not substantially deviate from the effects of the present invention. [Industrial Applicability]

[0082] The present invention can be used in the field of lighting systems. [Explanation of symbols]

[0083] 1A, 1B, 1C: Lighting system 11A, 11B, 11C: Lighting equipment 12A, 12B, 12C: Switching device 13A, 13B, 13C: Housing 110A, 110C, 110D: 1st light source section 120A: 2nd light source section 300A, 300C: Control section PA1, PA2, PA3, PC1a, PC2a: Mark PB1, PB2: Mark PC1b, PC2b: Characters R1: Bathroom R2:Bedroom R3: Living room SA1, SA2, SB1, SB2, SC1, SC2: Switches SA3: Switch

Claims

1. A lighting device that emits light into a space; a switch device that switches between a first state indicating a lighting state of the lighting device and a second state in which at least one of the color of the light and the brightness of the light is different from the first state; Equipped with the switch device includes a first indicia indicative of a user's intent to switch to the second state; The first display is provided on a surface of the switch device.

2. the illumination device includes a first light source unit that emits visible light, the switch device includes a first switch that switches the first light source unit to the second state when a first operation is received, The lighting system of claim 1 , wherein the first indicia is disposed at a position corresponding to the first switch.

3. A control device that controls the first light source unit is further provided. When the first switch receives the first operation, the first switch outputs an operation signal indicating the reception of the first operation to the control device; The lighting system according to claim 2 , wherein the control device, upon receiving the operation signal, adjusts at least one of a color and a brightness of the visible light emitted from the first light source unit based on the operation signal.

4. The illumination device further includes a second light source unit that emits ultraviolet light, The switch device comprises: a second switch that switches the second light source unit between a turned-on state and a turned-off state when a second operation is received; a second indication indicating a user's intention for switching the second light source unit to the lighting state; and Including, 4. The lighting system according to claim 2 or 3, wherein the second indication is disposed at a position corresponding to the second switch.

5. The lighting system according to claim 4 , wherein switching of the first light source unit is restricted when the second light source unit is in a turned-on state.

Images