WO2022163528A1 - Illumination system, control method, program, and environment control system - Google Patents

Abstract

The present invention provides an illumination system, a control method, a program, and an environment control system with which it is possible to provide a more suitable environment to people using a space being illuminated within a facility. This illumination system 10 comprises an illumination device 1 and a control device. The illumination device 1 is disposed inside a facility 200. When information is acquired indicating that a disinfection substance supplied from a disinfection device 6 is present within a space being illuminated by the illumination device 1, the control device controls illumination light from the illumination device 1 to colored illumination light having a different color than white such that a sign indicating the presence of the disinfection substance in the space being illuminated is presented.

Description

Lighting system, control method, program and environment control system

TECHNICAL FIELD The present disclosure generally relates to lighting systems, control methods, programs, and environment control systems, and more particularly relates to lighting systems including lighting devices, control methods, programs, and environment control systems for controlling lighting devices.

Conventionally, a lighting control system having a plurality of lighting fixtures that illuminate a plurality of areas and a lighting control unit that controls the control values of one or more lighting fixtures that illuminate a non-human area or a human presence area is known. (Patent Document 1).

For example, if there is a person in the lighting area of one lighting fixture out of a plurality of lighting fixtures, the environment in the lighting area may be polluted by droplets, contact, etc. originating from the person.

JP 2019-175780 A

An object of the present disclosure is to provide a lighting system, a control method, a program, and an environment control system capable of providing a more appropriate environment to people using the lighting target space in the facility.

A lighting system according to one aspect of the present disclosure includes a lighting device and a control device. The lighting device is arranged in a facility. The control device controls the lighting device. The control device presents a sign indicating the presence of the sterilizing substance in the space to be illuminated by the lighting device when acquiring information that the sterilizing substance supplied from the sterilizing device exists in the space to be illuminated by the lighting device. The illumination light of the illumination device is controlled to color illumination light of a color different from white so as to

A control method according to one aspect of the present disclosure is a control method for controlling a lighting device arranged in a facility, wherein when information is acquired that a disinfecting substance exists in a space to be illuminated by the lighting device, and controlling the illumination light of the illumination device to color illumination light of a color different from white so as to present a sign indicating the presence of the sterilizing substance in the illumination target space.

A program of one aspect according to the present disclosure is a program for causing a computer system to execute the control method of the above aspect.

An environment control system according to one aspect of the present disclosure includes the lighting system and a sterilization device that generates the sterilization substance.

FIG. 1 is a block diagram of a lighting system according to Embodiment 1. FIG. FIG. 2 is a schematic explanatory diagram showing a mode of use of the illumination system of the same. FIG. 3 is a partially broken plan view showing a light source of an illumination device in the same illumination system. FIG. 4 is a flow chart of the operation of the illumination system of the same. FIG. 5 is an explanatory diagram of an operation example of the lighting system of the same. FIG. 6 is a partially broken plan view showing a light source in Modification 1 of the lighting device in the lighting system. FIG. 7 is a partially broken plan view showing a light source in Modification 2 of the lighting device in the lighting system. FIG. 8 is a partially broken plan view showing a light source in Modification 3 of the lighting device in the lighting system. FIG. 9 is a partially broken plan view showing a light source in Modification 4 of the lighting device in the lighting system. FIG. 10 is a partially broken plan view showing a light source in Modified Example 5 of the lighting device in the lighting system. FIG. 11 is a schematic explanatory diagram showing a usage pattern of the lighting system according to the second embodiment.

Each drawing described in Embodiments 1, 2, etc. below is a schematic drawing, and the size ratio of each component in the drawing does not necessarily reflect the actual size ratio.

(Embodiment 1)
The lighting system 10 according to the first embodiment will be described below with reference to FIGS. 1 to 5. FIG.

(1) Overview A lighting system 10 according to Embodiment 1 includes a plurality of lighting devices 1 and a control device 3, as shown in FIG. The control device 3 controls the plurality of lighting devices 1 . A plurality of lighting devices 1 are arranged in a facility 200 as shown in FIG. The facility 200 is assumed to be a building, particularly an office building. Hereinafter, for convenience of explanation, the space facing the plurality of lighting devices 1 in the facility 200 is referred to as a target space 201 . The target space 201 is a space used by the person P10 within the facility 200 . Examples of target space 201 include conference rooms, working spaces, co-working spaces, and recreation rooms. The facilities 200 are not limited to office buildings, but may be offices, factories, hospitals, hotels, stadiums, amusement facilities, airports, detached houses, collective housing, and the like.

When the control device 3 acquires information that the sterilization substance (for example, hypochlorous acid) supplied from the sterilization device 6 exists in the space to be illuminated by the lighting device 1, the control device 3 sterilizes the space to be illuminated. The illumination light of the illumination device 1 is controlled to a color illumination light different from white so as to present a sign indicating the presence of the substance. This makes it possible to utilize the color illumination light and the illumination device 1 that outputs the color illumination light as information media. In FIG. 5, the light exit surface of one of the plurality of (for example, 12) lighting devices 1 that illuminates color illumination light of a color different from white (for example, purple) is indicated by dot hatching. Dot hatching is not applied to the light exit surface of the illumination device 1 which illuminates the illumination light of .

(2) Details The lighting system 10 according to the first embodiment will be described in further detail below with reference to FIGS. 1 to 5. FIG.

The lighting system 10 includes a plurality of lighting devices 1 and a control device 3 as described above.

For example, as shown in FIG. 2, a plurality of lighting devices 1 are arranged on a ceiling 202 facing a target space 201 in a facility 200 . A target space 201 is a space under the ceiling 202 . In the target space 201 in the facility 200, a desk 220, a chair 230, and the like are arranged as fixtures usable by the person P10. The plurality of lighting devices 1 has a square shape when viewed from the target space 201, but is not limited to this, and may have, for example, a rectangular shape or a circular shape. A plurality of lighting devices 1 are arranged in a two-dimensional array when viewed from the target space 201 . The plurality of lighting devices 1 may be ceiling-embedded lighting fixtures, ceiling-mounted lighting fixtures, or panel-shaped lighting fixtures supported by grid-shaped support members included in the system ceiling. , Ceiling-hanging luminaires may also be used.

Each of the plurality of lighting devices 1 includes a light source 11 (see FIG. 3). For example, as shown in FIG. 3, the light source 11 has a blue LED (Light Emitting Diode) 11B, a green LED 11G, a red LED 11R, and a white LED 11W.

Blue LED 11B emits blue light. The green LED 11G emits green light. The red LED 11R emits red light. The white LED 11W emits white light. The correlated color temperature of the white light emitted from the white LED 11W is, for example, 2700K or more and 6000K or less. The white LED 11W includes, for example, a blue LED chip and a wavelength conversion section including a wavelength conversion element that converts the wavelength of part of the blue light emitted from the blue LED chip and emits light with a wavelength different from that of the blue light. have. The wavelength converting elements are phosphor particles. The wavelength conversion section includes, for example, a translucent material section and phosphor particles. In this case, the wavelength converting portion is formed of a mixture of the translucent material portion and the phosphor particles. In the wavelength conversion section, a large number of phosphor particles are present in the translucent material section. The material of the translucent material portion (translucent material) is preferably a material having high visible light transmittance. The translucent material is, for example, silicone-based resin. As the phosphor particles, for example, yellow phosphor particles that emit yellow light can be used. The light (fluorescence) emitted from the yellow phosphor particles preferably has an emission spectrum with a main emission peak wavelength in the wavelength range of 530 nm to 580 nm, for example. The yellow phosphor particles are, for example, Y ₃ Al ₅ O ₁₂ activated with Ce, but are not limited thereto. Further, the wavelength conversion part is not limited to the case where only yellow phosphor particles are included as wavelength conversion elements. For example, yellow phosphor particles, yellow-green phosphor particles, green phosphor particles, and red phosphor particles , may be included. In other words, the wavelength conversion section may contain a plurality of types of phosphor particles. Yellow-green phosphor particles emit yellow-green light. Green phosphor particles emit green light. Red phosphor particles emit red light.

Also, the light source 11 has a mounting board 110 as shown in FIG. The mounting board 110 is, for example, a printed wiring board. The blue LED 11B, the green LED 11G, the red LED 11R and the white LED 11W are mounted on the mounting board 110. FIG. The light source 11 has a plurality of sets of a blue LED 11B, a green LED 11G, a red LED 11R, and a white LED 11W on one mounting board 110 .

Each of the plurality of lighting devices 1 includes a first drive circuit that drives the plurality of blue LEDs 11B, a second drive circuit that drives the plurality of green LEDs 11G, a third drive circuit that drives the plurality of red LEDs 11R, and a plurality of A fourth drive circuit for driving the white LED 11W and a control circuit for controlling the first to fourth drive circuits are provided. In each of the plurality of lighting devices 1, the control circuit controls the first to fourth drive circuits to select any one of white light, blue light, green light, and red light as illumination light, or It is possible to output light of a color obtained by mixing two or more of these colors. In short, each of the plurality of lighting devices 1 has a chromaticity point of blue light emitted from the blue LED 11B and a chromaticity point of green light emitted from the green LED 11G in the xy chromaticity diagram of the XYZ color system. and the chromaticity point of the red light emitted from the red LED 11R, and the light of a color corresponding to an arbitrary chromaticity point within the range of the triangle having the apexes thereof can be output as colored illumination light or white light. It is possible. The white light is preferably light of chromaticity corresponding to a chromaticity point on the black body locus in the xy chromaticity diagram of the XYZ color system.

As shown in FIG. 1, the control device 3 has a first acquisition unit 31 that acquires operation information of each of the sterilization devices 6 from the plurality of sterilization devices 6 arranged in the facility 200 (see FIG. 2). . The control device 3 also has a second acquisition unit 32 that acquires detection results regarding the presence or absence of the sterilization substance from the plurality of infrared image sensors 7 arranged in the facility 200 . In the example of FIG. 2 , in facility 200 , sterilization device 6 and infrared image sensor 7 are arranged adjacent to each of a plurality of lighting devices 1 . In the facility 200, it is assumed that the number of people permitted to use each of the plurality of desks 220 at the same time is a predetermined number (two people), Initially, two chairs 230 are arranged per desk 220 .

Each of the plurality of sterilization devices 6 is, for example, a mist generator that generates mist of hypochlorous acid. The mist generating device includes an atomizing device that generates a hypochlorous acid mist, and an air blower that injects the hypochlorous acid mist generated by the atomizing device into an illumination target space. Individual identification information (address) is set for each of the sterilization devices 6 . In the lighting system 10 , for example, by transmitting a signal indicating the operation status of each sterilization device 6 and identification information to the control device 3 , the first acquisition unit 31 of the control device 3 obtains each of the plurality of sterilization devices 6 can be acquired together with the identification information of each of the plurality of sterilization devices 6 .

Each of the plurality of infrared image sensors 7, for example, radiates infrared rays from an infrared light source into the illumination target space of the lighting device 1 adjacent to the infrared image sensor 7, and captures the illumination target space. Detects the presence or absence of a sterilization substance in the lighting target space. Each of the plurality of infrared image sensors 7 detects that, for example, the top surface of the desk 220 arranged in the illumination target space has a sterilizing substance (for example, droplets formed by mist of hypochlorous acid) remaining thereon. detect whether or not there is The infrared image sensor 7 includes an infrared light source and an infrared camera. The infrared light source emits infrared rays, for example, into an illumination target space of the illumination device 1 adjacent to the infrared image sensor 7 . The infrared camera captures, for example, an illumination target space of the illumination device 1 adjacent to the infrared image sensor. The infrared light source emits infrared rays with a wavelength of 2900 nm, for example. The wavelength of the infrared rays emitted from the infrared light source is the hypochlorous acid liquid formed on the top surface of the desk 220, the floor surface of the facility 200, etc. by spraying a sterilizing substance (for example, hypochlorous acid mist). It is a wavelength that is easily absorbed by droplets). An imaging element in an infrared camera is an infrared image sensor. The infrared image sensor 7 can detect the presence or absence of the sterilization substance in the illumination target space based on the infrared image captured by the infrared camera and generated. The infrared image sensor 7 can detect the sterilization substance by obtaining the characteristic amount of the sterilization substance (liquid droplets, etc.) by performing image processing on the infrared image. Individual identification information (addresses) is set for the plurality of infrared image sensors 7 . In the lighting system 10, for example, the plurality of infrared image sensors 7 transmit the detection results of the sterilizing substance and the identification information of the infrared image sensors 7 to the control device 3, so that the second acquisition unit 32 of the control device 3, The detection results of each of the plurality of infrared image sensors 7 can be acquired together with the identification information.

The control device 3 also has a control unit 33 that controls the plurality of lighting devices 1 . The control device 3 and the plurality of lighting devices 1 are connected via, for example, signal lines Ls, and control signals can be transmitted from the control device 3 to the plurality of lighting devices 1 . Individual identification information (unique address) is set for each of the plurality of lighting devices 1 . A plurality of lighting devices 1 each have a storage unit that stores a unique address. In the control device 3, the control unit 33 has, as operation modes, for example, a first mode (collective control mode) in which two or more lighting devices 1 out of the plurality of lighting devices 1 are collectively controlled with the same control content; Alternatively, it has a second mode (pattern control mode) in which two or more lighting devices 1 are individually controlled in advance, and a third mode (individual control mode) in which a plurality of lighting devices 1 are individually controlled. is doing. The control unit 33 includes a memory that stores unique addresses for each of the lighting devices 1 . In addition, the control unit 33 stores a collective control address used in the first mode and a group control address used in the second mode in the memory described above. In this case, the storage units of the plurality of lighting devices 1 store group control addresses and batch control addresses in addition to unique addresses.

In the control device 3, based on the identification information of each of the plurality of lighting devices 1, the identification information of each of the plurality of sterilization devices 6, and the identification information of each of the plurality of infrared image sensors 7, the identification information of one lighting device 1 and the identification information of one lighting device 1 The identification information of one sterilization device 6 and the identification information of one infrared image sensor 7 may be associated and stored in the memory of the control unit 33 .

The control signal from the control unit 33 to each lighting device 1 includes address data corresponding to the unique address of the lighting device 1 to be controlled, the collective control address, or the group control address, and the control content of the lighting device 1 to be controlled ( and control data indicating the color of illumination light, lighting, lighting, blinking, illuminance, etc.). The color of the illumination light is white or a color different from white (eg, purple, red, blue, green, etc.). The control content may include control data including control content indicating the chromaticity of the illumination light instead of including control data including the control content indicating the color of the illumination light.

When the second acquisition unit 32 acquires the detection result information indicating the presence of the sterilization substance in the illumination target space from one or more infrared image sensors among the plurality of infrared image sensors 7, the control unit 33 controls the second acquisition unit 32. The illumination light of the one or more illumination devices 1 associated with the one or more infrared image sensors 7 is controlled to color illumination light of a color different from white so as to present a sign indicating the presence of fungal material. More specifically, as shown in FIG. 4, when the first acquisition unit 31 acquires information indicating the presence of the sterilizing substance from the infrared image sensor 7 (step S11: Yes), the control unit 33 control the illumination light of the one or more illumination devices 1 associated with the one or more infrared image sensors 7 to color illumination light of a color different from white (for example, purple) so as to present a sign indicating the presence of (step S12). After that, when the first acquisition unit 31 acquires the detection result information indicating that there is no sterilization substance from the one or more infrared image sensors 7 (step S13: Yes), the one or more infrared images Control of the color illumination light for the one or more illumination devices 1 associated with the sensor 7 ends (step S14). “Ending the control of the color illumination light” means, for example, controlling the illumination light of the illumination device 1 to be white or turning off the illumination device 1 . The control device 3 may control the illumination light of the lighting device 1 so as to present a sign indicating that the sterilization process is finished when the control device 3 acquires the information that the sterilization substance is no longer present. In this case, the lighting system 10, for example, for a predetermined time (for example, 3 minutes), the illumination light of the lighting device 1 is different from white and different from the color during the sterilization process (for example, purple). Color illumination light may be controlled to a color (eg, green or blue).

The control device 3 (see FIG. 1) includes a computer system. A computer system is mainly composed of a processor and a memory as hardware. The function of the control device 3 is realized by the processor executing a program recorded in the memory of the computer system. The program may be recorded in advance in the memory of the computer system, may be provided through an electric communication line, or may be recorded in a non-temporary recording medium such as a computer system-readable memory card, optical disk, or hard disk drive. may be provided. A processor in a computer system consists of one or more electronic circuits, including semiconductor integrated circuits (ICs) or large scale integrated circuits (LSIs). Integrated circuits such as ICs or LSIs are called differently depending on the degree of integration, and include integrated circuits called system LSI, VLSI (Very Large Scale Integration), or ULSI (Ultra Large Scale Integration). In addition, FPGAs (Field-Programmable Gate Arrays), which are programmed after the LSI is manufactured, or logic devices capable of reconfiguring the connection relationships inside the LSI or reconfiguring the circuit partitions inside the LSI, shall also be adopted as processors. can be done. A plurality of electronic circuits may be integrated into one chip, or may be distributed over a plurality of chips. A plurality of chips may be integrated in one device, or may be distributed in a plurality of devices. A computer system, as used herein, includes a microcontroller having one or more processors and one or more memories. Accordingly, the microcontroller also consists of one or more electronic circuits including semiconductor integrated circuits or large scale integrated circuits.

(3) Control Method and Program The control method according to the first embodiment is a control method for controlling a plurality of lighting devices 1 arranged within the facility 200 . The control method according to the first embodiment is a control method for controlling the lighting device 1 arranged in the facility 200. 2, the illumination light of the illumination device 1 is controlled to a color illumination light different from white so as to present a sign indicating the presence of the sterilizing substance in the illumination target space.

The program according to the first embodiment is a program for causing the computer system (control device 3) to execute the control method described above.

(4) Environment Control System The environment control system includes a lighting system 10 , multiple sterilization devices 6 , and multiple infrared image sensors 7 . In the environment control system, for example, the presence or absence of the person P10 in the illumination target space is further detected by the infrared image sensor 7, and when the person P10 stays in the illumination target space but does not stay there, control is performed. The device 3 controls the sterilization device 6 to start sterilization processing by the sterilization device 6 . As a result, in the environment control system, the person P10 in the facility 200 can visually determine the illumination target space during the disinfection process and the illumination target space after the disinfection process. In addition, the environmental control system can be expected to contribute to reducing the risk of infectious diseases for the person P10 who uses the facility 200 . Further, in the environment control system, a color different from the color illumination light used during the sterilization process (for example, red ) is output from the illumination device 1 to announce the start of the sterilization process.

(5) Summary The lighting system 10 according to the first embodiment includes a plurality of lighting devices 1 and a control device 3 . A plurality of lighting devices 1 are arranged in a facility 200 . When the control device 3 acquires the information that the sterilizing substance supplied from the sterilizing device 6 exists in the space to be illuminated by the lighting device 1, it presents a sign indicating the presence of the sterilizing substance in the space to be illuminated. Illumination light of the illumination device 1 is controlled to color illumination light of a color different from white. As a result, the lighting system 10 according to the first embodiment can provide a more appropriate environment to the person P10 who uses the lighting target space in the facility 200 . Here, the lighting system 10 turns on the lighting device 1 when the control device 3 acquires the information that the sterilizing substance exists in the lighting target space, is being sterilized) can be used as a signage lighting application. In FIG. 5, the light exit surface of one of the plurality of (for example, 12) lighting devices 1 that illuminates color illumination light of a color different from white (for example, purple) is indicated by dot hatching. Dot hatching is not applied to the light exit surface of the illumination device 1 which illuminates the illumination light of . In FIG. 5, the top surface of the desk 220 irradiated with color illumination light among the plurality of desks 220 and the seat surfaces of two chairs 230 near this desk 220 are hatched with dots. . Further, when the control device 3 does not acquire the information that the sterilization substance exists in the lighting target space, the lighting system 10 sets the lighting device 1 corresponding to the lighting target space to the target space 201 of the facility 200. It can be used as a main lighting application.

In addition, the environment control system according to Embodiment 1 includes a lighting system 10, a plurality of sterilization devices 6, and a plurality of infrared image sensors 7. As a result, the environment control system according to the first embodiment can control the plurality of lighting devices 1 based on the presence or absence of the sterilizing substance in the lighting target space. In addition, the environmental control system can be expected to contribute to reducing the risk of infectious diseases for the person P10 who uses the facility 200 .

(6) Modification of lighting device in lighting system according to Embodiment 1 (6.1) Modification 1
For example, as shown in FIG. 6, the light source 11 included in each of the plurality of lighting devices 1 includes a first blue LED 111, a second blue LED 112, a first wavelength conversion section 121, a second wavelength conversion section 122, It has a visible light LED 13 (hereinafter also referred to as a first visible light LED 13) and a visible light LED 14 (hereinafter also referred to as a second visible light LED 14).

The first blue LED 111 emits first blue light. The second blue LED 112 emits second blue light. The first wavelength converter 121 includes green phosphor particles that are excited by the first blue light to emit green light. The second wavelength converter 122 includes red phosphor particles that are excited by the second blue light to emit red light. The first visible light LED 13 emits visible light of a color different from the first blue light, the second blue light, and the white light (hereinafter also referred to as first visible light). The second visible light LED 14 emits visible light of a color different from the first blue light, the second blue light, and the white light (hereinafter also referred to as second visible light). The peak wavelength of the second blue light may be the same as or different from the peak wavelength of the first blue light. The first visible light is, for example, red light. The second visible light is, for example, green light. The first visible light and the second visible light are not limited to different colors, and may be the same color. Moreover, the light source 11 is not limited to including both the first visible light LED 13 and the second visible light LED 14, and may include at least one of them.

First blue LED 111 , second blue LED 112 , first wavelength conversion section 121 , second wavelength conversion section 122 , first visible light LED 13 , and second visible light LED 14 are provided on mounting board 110 . there is Further, the light source 11 includes a first blue LED 111, a second blue LED 112, a first wavelength conversion section 121, a second wavelength conversion section 122, a first visible light LED 13, and a second blue LED 112 on one mounting substrate 110. It has a plurality of sets with 2 visible light LEDs 14 .

Each of the plurality of lighting devices 1 includes a drive circuit that drives the plurality of first blue LEDs 111, a drive circuit that drives the plurality of second blue LEDs 112, a drive circuit that drives the plurality of first visible light LEDs, and a plurality of and a control circuit for controlling each drive circuit.

In Modified Example 1, it is possible to improve the color rendering properties of the illumination light of the lighting device 1 when the lighting device 1 is used for main lighting purposes.

(6.2) Modification 2
For example, as shown in FIG. 7, the light source 11 included in each of the plurality of lighting devices 1 includes a first violet LED 131, a second violet LED 132, a third violet LED 133, a first wavelength converter 141, and a second It has a wavelength converter 142 and a third wavelength converter 143 . Moreover, the light source 11 further has a visible light LED 15 .

The first violet LED 131 emits first violet light. The second violet LED 132 emits second violet light. The third violet LED 133 emits third violet light. The first wavelength converter 141 includes blue phosphor particles that are excited by the first violet light to emit blue light. The second wavelength converter 142 includes green phosphor particles that are excited by the second violet light to emit green light. The third wavelength converter 143 includes red phosphor particles that are excited by the third violet light to emit red light. Visible light LED 15 emits visible light (eg, red light). The peak wavelengths of the first violet light, the second violet light, and the third violet light may be the same or different. The visible light emitted from the visible light LED 15 is not limited to red light, and may be green light, for example. Further, the light source 11 may be configured without the visible light LED 15 .

The first violet LED 131, the second violet LED 132, the third violet LED 133, the first wavelength conversion section 141, the second wavelength conversion section 142, the third wavelength conversion section 143, and the visible light LED 15 are mounted on a mounting substrate. 110. Further, the light source 11 includes a first violet LED 131, a second violet LED 132, a third violet LED 133, a first wavelength conversion section 141, a second wavelength conversion section 142, and a third A plurality of sets of the wavelength conversion unit 143 and the visible light LED 15 are provided.

Each of the plurality of lighting devices 1 includes a drive circuit that drives the plurality of first violet LEDs 131, a drive circuit that drives the plurality of second violet LEDs 132, a drive circuit that drives the plurality of third violet LEDs 133, and a plurality of A drive circuit for driving the visible light LED 15 and a control circuit for controlling each drive circuit are provided.

In Modified Example 2, it is possible to improve the color rendering properties of the illumination light of the lighting device 1 when the lighting device 1 is used for main lighting purposes.

(6.3) Modification 3
For example, as shown in FIG. 8, the light source 11 included in each of the plurality of lighting devices 1 includes a first blue LED 111, a second blue LED 112, a third blue LED 113, a first wavelength converter 121, and a second It has a wavelength converter 122 and a third wavelength converter 123 . The first blue LED 111 emits first blue light. The second blue LED 112 emits second blue light. The third blue LED 113 emits third blue light. The first wavelength converter 121 includes phosphor particles that are excited by the first blue light to emit light with a longer wavelength than the first blue light, and emits light of a first intermediate color from blue to white. The second wavelength converter 122 includes phosphor particles that are excited by the second blue light to emit light with a longer wavelength than the second blue light, and emits second intermediate color light from green to white. The third wavelength converter 123 includes phosphor particles that are excited by the third blue light to emit light with a longer wavelength than the third blue light, and emits light of a third intermediate color from red to white. The first intermediate color, the second intermediate color, and the third intermediate color are colors different from each other. First blue LED 111 , second blue LED 112 , third blue LED 113 , first wavelength conversion section 121 , second wavelength conversion section 122 , and third wavelength conversion section 123 are provided on mounting board 110 . there is In addition, the light source 11 includes the first blue LED 111, the second blue LED 112, the third blue LED 113, the first wavelength conversion section 121, the second wavelength conversion section 122, and the third blue LED 113 on one mounting substrate 110. It has a plurality of sets with the wavelength conversion section 123 .

Each of the plurality of lighting devices 1 includes a drive circuit that drives the plurality of first blue LEDs 111, a drive circuit that drives the plurality of second blue LEDs 112, a drive circuit that drives the plurality of third blue LEDs 113, and a drive circuit that drives the plurality of third blue LEDs 113. and a control circuit for controlling the circuit.

In Modified Example 3, it is possible to improve the color rendering properties of the illumination light of the lighting device 1 when the lighting device 1 is used for main lighting purposes.

(6.4) Modification 4
For example, as shown in FIG. 9, the light source 11 included in each of the plurality of lighting devices 1 includes a first blue LED 111, a second blue LED 112, a third blue LED 113, a fourth blue LED 114, and a first wavelength conversion light. A configuration including the section 121, the second wavelength conversion section 122, the third wavelength conversion section 123, and the fourth wavelength conversion section 124 may be employed. The first blue LED 111 emits first blue light. The second blue LED 112 emits second blue light. The third blue LED 113 emits third blue light. The fourth blue LED 114 emits fourth blue light. The first wavelength converter 121 includes phosphor particles that are excited by the first blue light to emit light with a longer wavelength than the first blue light, and emits light of a first intermediate color from blue to white. The second wavelength converter 122 includes phosphor particles that are excited by the second blue light to emit light with a longer wavelength than the second blue light, and emits second intermediate color light from green to white. The third wavelength converter 123 includes phosphor particles that are excited by the third blue light to emit light with a longer wavelength than the third blue light, and emits light of a third intermediate color from red to white. The fourth wavelength conversion unit 124 includes phosphor particles that are excited by the fourth blue light to emit light having a longer wavelength than the fourth blue light, and includes fourth wavelengths of colors other than blue, green, and red to white. Emit a neutral light. The first intermediate color, the second intermediate color, the third intermediate color, and the fourth intermediate color are colors different from each other. A first blue LED 111, a second blue LED 112, a third blue LED 113, a fourth blue LED 114, a first wavelength conversion section 121, a second wavelength conversion section 122, a third wavelength conversion section 123, and a fourth blue LED 114. The wavelength conversion section 124 is provided on the mounting board 110 . In addition, the light source 11 includes a first blue LED 111, a second blue LED 112, a third blue LED 113, a fourth blue LED 114, a first wavelength converter 121, and a second wavelength converter on one mounting substrate 110. A plurality of sets of the section 122 , the third wavelength conversion section 123 and the fourth wavelength conversion section 124 are provided.

Each of the plurality of lighting devices 1 includes a drive circuit that drives the plurality of first blue LEDs 111, a drive circuit that drives the plurality of second blue LEDs 112, a drive circuit that drives the plurality of third blue LEDs 113, and a plurality of A drive circuit for driving the fourth blue LED 114 and a control circuit for controlling each drive circuit are provided.

In Modified Example 4, it is possible to improve the color rendering properties of the illumination light of the lighting device 1 when the lighting device 1 is used for main lighting purposes.

(6.5) Modification 5
For example, as shown in FIG. 10, the light source 11 included in each of the plurality of lighting devices 1 includes a first blue LED 111, a second blue LED 112, a third blue LED 113, a first wavelength converter 121, and a second A configuration including the wavelength conversion unit 122 , the third wavelength conversion unit 123 , and the visible light LED 16 may be employed. The first blue LED 111 emits first blue light. The second blue LED 112 emits second blue light. The third blue LED 123 emits third blue light. The first wavelength converter 121 includes phosphor particles that are excited by the first blue light to emit light with a longer wavelength than the first blue light, and emits light of a first intermediate color from blue to white. The second wavelength converter 122 includes phosphor particles that are excited by the second blue light to emit light with a longer wavelength than the second blue light, and emits second intermediate color light from green to white. The third wavelength converter 123 includes phosphor particles that are excited by the third blue light to emit light with a longer wavelength than the third blue light, and emits light of a third intermediate color from red to white. The visible light LED 16 emits visible light of a color different from the first blue light, the second blue light, the third blue light, the first intermediate color light, the second intermediate color light, the third intermediate color light and the white light. . The first intermediate color, the second intermediate color, and the third intermediate color are colors different from each other. The first blue LED 111, the second blue LED 112, the third blue LED 113, the visible light LED 16, the first wavelength conversion section 121, the second wavelength conversion section 122, and the third wavelength conversion section 123 are mounted on a mounting substrate. 110. Further, the light source 11 includes a first blue LED 111, a second blue LED 112, a third blue LED 113, a visible light LED 16, a first wavelength conversion section 121, and a second wavelength conversion section on one mounting substrate 110. 122 and a plurality of sets of the third wavelength conversion section 123 .

Each of the plurality of lighting devices 1 includes a drive circuit that drives the plurality of first blue LEDs 111, a drive circuit that drives the plurality of second blue LEDs 112, a drive circuit that drives the plurality of third blue LEDs 113, and a plurality of A drive circuit for driving the visible light LED 16 and a control circuit for controlling each drive circuit are provided.

In Modified Example 5, it is possible to improve the color rendering properties of the illumination light of the lighting device 1 when the lighting device 1 is used for main lighting purposes.

(Embodiment 2)
A lighting system 10a according to the second embodiment will be described below with reference to FIG. Regarding the lighting system 10a according to the second embodiment, the same components as those of the lighting system 10 according to the first embodiment are denoted by the same reference numerals, and description thereof is omitted.

The lighting system 10 a is a plurality (for example, 9) of the lighting devices 1 , which are separate from the plurality (for example, 9) of the first lighting devices 1 and arranged in the facility 200 . ) is further provided.

The illumination light from the plurality of second lighting devices 2 is white light. Here, the illumination light from the plurality of second lighting devices 2 is white light with a correlated color temperature of 2700K or more and 6000K or less.

The control device 3 controls the multiple lighting devices 1 and the multiple second lighting devices 2 . The control device 3 stores identification information and position information of the plurality of second lighting devices 2 .

In the lighting system 10a, the plurality of second lighting devices 2 are arranged so as to be adjacent to one or two of the plurality of first lighting devices 1 in one direction. A light exit surface of each of the plurality of first lighting devices 1 has a rectangular shape. Each light exit surface of the plurality of second lighting devices 2 has a rectangular shape. In the illumination system 10 a , the area of the light exit surface of each first lighting device 1 is smaller than the area of the light exit surface of each second lighting device 2 . In the lighting system 10 a , the lighting area of each first lighting device 1 is narrower than the lighting area of the second lighting device 2 .

The illumination system 10a can use illumination light from the plurality of second illumination devices 2 as main illumination.

In the lighting system 10a, when the control device 3 acquires information that the sterilization substance supplied from the sterilization device 6 exists in the illumination target space of at least one of the plurality of lighting devices 1, , the illumination light of the at least one lighting device 1 is controlled to a color different from white so as to present a sign indicating the presence of the sterilizing substance in the space to be illuminated by the at least one lighting device 1. Thereby, in the lighting system 10a according to the second embodiment, it is possible to provide a more appropriate environment to the person P10 who uses the lighting target space in the facility 200. FIG. Further, in the illumination system 10a, it is possible to utilize the colored illumination light and the first illumination device 1 that outputs the colored illumination light as information media. In FIG. 11, the light exit surface of one of the plurality of (eg, 9) first lighting devices 1 that illuminates color illumination light of a color (eg, red) different from white is indicated by dot hatching. , and the light exit surface of the first lighting device 1 that emits white illumination light is not hatched. Further, in FIG. 11, the top surface of the desk 220 irradiated with the color illumination light among the plurality of desks 220 and the seat surfaces of the two chairs 230 near this desk 220 are hatched with dots. .

In the lighting system 10a, each of the plurality of second lighting devices 2 may be capable of adjusting the correlated color temperature of the illumination light.

(Modification)
Embodiments 1 and 2 above are merely one of various embodiments of the present disclosure. The first and second embodiments described above can be modified in various ways in accordance with the design, etc., as long as the object of the present disclosure can be achieved, and the constituent elements may be combined as appropriate.

For example, in the control device 3, the control unit 33 The identification information of one sterilization device 6 and the identification information of one infrared image sensor 7 may be associated with the identification information of one illumination device 1 and stored in the memory of the sterilization device. 6 and the identification information of one infrared image sensor 7 may be stored in association with the identification information of two or more lighting devices 1 .

Also, the number of lighting devices 1 provided in the lighting system 10 is not limited to plural, and may be one.

Also, the illumination device 1 or illumination system 10 may include the sterilization device 6 and the infrared image sensor 7 .

Further, the lighting device 1 is not limited to the lighting device arranged on the ceiling 202 in the facility 200, and may be, for example, a lighting device arranged on a wall surface or a floor surface.

Also, the illumination device 1 may be, for example, a downlight or a spotlight. The lighting system 10 may include a plurality of types of lighting devices having different light distribution characteristics. As a result, the lighting system 10 can include a lighting device that outputs illumination light as ambient lighting and a lighting device that outputs illumination light as task lighting, thereby realizing task ambient lighting. .

Also, the lighting device 1 may be a lighting device configured to determine the direction of the illumination light by the light source and the light guide plate.

Further, the sterilization device 6 is not limited to a mist generator that generates hypochlorous acid mist, and may be a mist generator that generates sterilization alcohol mist. In this case, the sterilizing substance is sterilizing alcohol.

Further, the sterilization device 6 may be an electrostatic atomization device that generates charged fine particle water containing radicals. In this case, the sterilization substance is charged fine particle water containing radicals.

In addition, the memory of the control unit 33 of the control device 3 may store the identification information of one infrared image sensor 7 in association with the identification information of two or more lighting devices 1 .

Also, the control device 3 may be connectable, for example, to a management device that stores facility information of the facility 200 via a communication network. In this case, the control device 3 refers to the facility information of the facility 200, and based on the position information of the lighting device 1, the position information of the sterilization device 6, and the position information of the infrared image sensor 7, the lighting device 1 and the sterilization device 6 and the infrared image sensor 7 may be associated. A management device is, for example, a server. A communication network may include the Internet. The communication network may consist of not only a network conforming to a single communication protocol, but also a plurality of networks conforming to different communication protocols. Communication protocols may be selected from a variety of well-known wired and wireless communication standards. A communication network may include, for example, data communication equipment such as repeater hubs, switching hubs, bridges, gateways, routers, and the like.

The facility information is, for example, part or all of three-dimensional data representing the structure of the facility 200. The three-dimensional data is data representing the facility 200 in a virtual space constructed using a computer. This type of three-dimensional data is, for example, BIM (Building Information Modeling) data. Below, three-dimensional data is called "BIM data."

BIM data includes not only data representing the shape and dimensions of the facility 200, but also various types of data related to the facility 200, such as data related to the members that make up the facility 200 and data related to equipment installed in the facility 200. are integrated. The BIM data also includes information on the latitude and longitude of the reference position of the facility 200 and information on the orientation of the facility 200 . In other words, the BIM data represents not only the data for building the facility 200 but also various data relating to the facility 200 . BIM data is information expressed using, for example, a three-dimensional CAD (Computer Aided Design) system, and is created using data representing the shape and dimensions of the facility 200 . By using BIM data, for example, it is possible to display a graphic representing the whole or part of the facility 200 on the display. BIM data is hierarchized according to the facility 200 . BIM data includes, for example, information representing the entire facility 200 in a front view or a perspective view, information representing each of a plurality of floors of the facility 200 in a plan view or a perspective view, or information representing one floor in a plan view or a perspective view. contains. For example, BIM data includes data representing a perspective view of an entire building that is the facility 200, data representing a plan view of one floor in the building, or data representing a perspective view of a room viewed from the inside. Both facility information (BIM data) and location information can be displayed using software capable of executing a program written in a programming language such as Java (registered trademark). For example, a web browser compatible with WebGL (Web Graphics Library) can display three-dimensional data of the facility 200 on the display unit.

(mode)
From Embodiments 1, 2, etc., described above, the following aspects are disclosed in this specification.

A lighting system (10; 10a) according to a first aspect includes a lighting device (1) and a control device (3). A lighting device (1) is placed in a facility (200). When the control device (3) acquires information that the sterilization substance supplied from the sterilization device (6) exists in the space to be illuminated by the lighting device (1), the control device (3) detects the presence of the sterilization substance in the space to be illuminated by the lighting device (1). The illuminating light of the illuminating device (1) is controlled to a color illuminating light different from white so as to present a presence sign.

The lighting system (10; 10a) according to the first aspect can provide a more appropriate environment to the person (P10) using the lighting target space in the facility (200).

In the lighting system (10; 10a) according to the second aspect, in the first aspect, when the control device (3) acquires the information that the sterilizing substance is no longer present, the sterilization process is completed. The illumination light of the illumination device (1) is controlled so as to present a sign indicating

The illumination system (10; 10a) according to the second aspect makes it possible to notify the end of the sterilization process by the illumination light of the illumination device (1).

In the lighting system (10; 10a) according to the third aspect, in the first or second aspect, the sterilizing substance is hypochlorous acid or sterilizing alcohol.

A lighting system (10; 10a) according to a fourth aspect includes a plurality of lighting devices (1) in any one of the first to third aspects. A control device (3) controls at least one lighting device (1) for presenting a sign among a plurality of lighting devices (1).

In the lighting system (10; 10a) according to the fifth aspect, in any one of the first to fourth aspects, the lighting device (1) includes a blue LED (11B) that emits blue light and a green light that emits green light. It comprises a light source (11) comprising a green emitting LED (11G), a red emitting red LED (11R) and a white emitting white LED (11W).

In the illumination system (10; 10a) according to the fifth aspect, the degree of freedom of the color of the color illumination light is increased.

In the lighting system (10; 10a) according to the sixth aspect, in any one of the first to fourth aspects, the lighting device (1) includes a first blue LED (111), a second blue LED (112 ), a first wavelength conversion section (121), a second wavelength conversion section (122), and a visible light LED (13, 14). A first blue LED (111) emits a first blue light. A second blue LED (112) emits a second blue light. The first wavelength conversion part (121) includes green phosphor particles that are excited by the first blue light to emit green light. The second wavelength conversion part (122) includes red phosphor particles that are excited by the second blue light to emit red light. The visible light LEDs (13, 14) emit visible light of a color different from the first blue light, the second blue light and the white light.

In the illumination system (10; 10a) according to the sixth aspect, the color rendering of the illumination light of the illumination device (1) when the illumination device (1) is used for main lighting is improved compared to the fifth aspect. It is possible to

In the lighting system (10; 10a) according to the seventh aspect, in any one of the first to fourth aspects, the lighting device (1) includes a first violet LED (131) and a second violet LED (132 ), a third violet LED (133), a first wavelength conversion section (141), a second wavelength conversion section (142), and a third wavelength conversion section (143). . A first violet LED (131) emits a first violet light. A second violet LED (132) emits a second violet light. A third violet LED (133) emits third violet light. The first wavelength conversion part (141) includes blue phosphor particles that are excited by the first violet light to emit blue light. The second wavelength conversion part (142) includes green phosphor particles that are excited by the second violet light to emit green light. The third wavelength conversion part (143) includes red phosphor particles that are excited by the third violet light to emit red light.

In the illumination system (10; 10a) according to the seventh aspect, the color rendering of the illumination light of the illumination device (1) when the illumination device (1) is used for main lighting is improved compared to the fifth aspect. It is possible to

In the lighting system (10; 10a) according to the eighth aspect, in any one of the first to fourth aspects, the lighting device (1) includes a first blue LED (111), a second blue LED (112 ), a third blue LED (113), a first wavelength conversion section (121), a second wavelength conversion section (122), and a third wavelength conversion section (123). . A first blue LED (111) emits a first blue light. A second blue LED (112) emits a second blue light. A third blue LED (113) emits a third blue light. The first wavelength conversion part (121) includes phosphor particles that are excited by the first blue light to emit light of a longer wavelength than the first blue light, and emits light of a first intermediate color from blue to white. The second wavelength conversion part (122) includes phosphor particles that are excited by the second blue light to emit light of a longer wavelength than the second blue light, and emits light of a second intermediate color from green to white. The third wavelength conversion part (123) includes phosphor particles that are excited by the third blue light to emit light of a longer wavelength than the third blue light, and emits light of a third intermediate color from red to white.

In the lighting system (10; 10a) according to the eighth aspect, the color rendering of the illumination light of the lighting device (1) when the lighting device (1) is used for main lighting is improved compared to the fifth aspect. It is possible to

In the lighting system (10; 10a) according to the ninth aspect, in any one of the first to fourth aspects, the lighting device (1) includes a first blue LED (111), a second blue LED (112 ), a third blue LED (113), a fourth blue LED (114), a first wavelength converter (121), a second wavelength converter (122), and a third wavelength converter (123) , and a fourth wavelength converter (124). A first blue LED (111) emits a first blue light. A second blue LED (112) emits a second blue light. A third blue LED (113) emits a third blue light. A fourth blue LED (114) emits a fourth blue light. The first wavelength conversion part (121) includes phosphor particles that are excited by the first blue light to emit light of a longer wavelength than the first blue light, and emits light of a first intermediate color from blue to white. The second wavelength conversion part (122) includes phosphor particles that are excited by the second blue light to emit light of a longer wavelength than the second blue light, and emits light of a second intermediate color from green to white. The third wavelength conversion part (123) includes phosphor particles that are excited by the third blue light to emit light of a longer wavelength than the third blue light, and emits light of a third intermediate color from red to white. The fourth wavelength conversion part (124) includes phosphor particles that are excited by the fourth blue light to emit light having a longer wavelength than the fourth blue light, and converts colors from colors other than blue, green, and red to white. It emits light of a fourth intermediate color.

In the lighting system (10; 10a) according to the ninth aspect, the color rendering of the illumination light of the lighting device (1) when the lighting device (1) is used for main lighting is improved compared to the fifth aspect. It is possible to

In the lighting system (10; 10a) according to the tenth aspect, in any one of the first to fourth aspects, the lighting device (1) includes a first blue LED (111) and a second blue LED (112 ), a third blue LED (113), a first wavelength converter (121), a second wavelength converter (122), a third wavelength converter (123), a visible light LED (16), a light source (11) having a A first blue LED (111) emits a first blue light. A second blue LED (112) emits a second blue light. A third blue LED (113) emits a third blue light. The first wavelength conversion part (121) includes phosphor particles that are excited by the first blue light to emit light of a longer wavelength than the first blue light, and emits light of a first intermediate color from blue to white. The second wavelength conversion part (122) includes phosphor particles that are excited by the second blue light to emit light of a longer wavelength than the second blue light, and emits light of a second intermediate color from green to white. The third wavelength conversion part (123) includes phosphor particles that are excited by the third blue light to emit light of a longer wavelength than the third blue light, and emits light of a third intermediate color from red to white. The visible light LED (16) emits visible light of a color different from the first blue light, the second blue light, the third blue light, the first intermediate color light, the second intermediate color light, the third intermediate color light and the white light. radiate.

In the lighting system (10; 10a) according to the tenth aspect, the color rendering of the illumination light of the lighting device (1) when the lighting device (1) is used for main lighting is improved compared to the fifth aspect. It is possible to

A lighting system (10a) according to an eleventh aspect, in any one of the first to tenth aspects, is separate from the first lighting device (1), which is the lighting device (1), and is installed in the facility (200). It further comprises a second lighting device (2) arranged therein. The illumination light of the second illumination device (2) is white light with a correlated color temperature of 2700K or more and 6000K or less. A control device (3) controls the second lighting device (2).

The lighting system (10a) according to the eleventh aspect enables the second lighting device (2) to be used for main lighting.

A control method according to a twelfth aspect is a control method for controlling a lighting device (1) arranged in a facility (200), wherein a disinfecting substance exists in a space to be illuminated by the lighting device (1). The illumination light of the illumination device (1) is controlled to color illumination light of a color different from white so as to present a sign indicating the presence of the sterilizing substance in the illumination target space when information about the presence of the sterilizing substance is acquired.

The control method according to the twelfth aspect makes it possible to provide a more appropriate environment to the person (P10) who uses the lighting target space in the facility (200).

A program according to the thirteenth aspect is a program for causing a computer system to execute the control method according to the twelfth aspect.

The program according to the thirteenth aspect can provide a more appropriate environment to the person (P10) who uses the lighting target space in the facility (200).

An environment control system according to a fourteenth aspect comprises the lighting system (10; 10a) according to any one of the first to eleventh aspects and a sterilization device (6) that generates a sterilization substance.

The environment control system according to the fourteenth aspect can provide a more appropriate environment to the person (P10) who uses the lighting target space in the facility (200).

The environment control system according to the fifteenth aspect, in the fourteenth aspect, further comprises an infrared image sensor (7). An infrared image sensor (7) detects the presence or absence of a sterilizing substance in the illumination target space based on an image generated by capturing an image of the illumination target space by radiating infrared rays from an infrared light source into the illumination target space. A control device (3) controls the illumination device (1) based on the detection result of the infrared image sensor (7).

The environment control system according to the fifteenth aspect can control the lighting device (1) based on the presence or absence of the sterilizing substance in the lighting target space.

In the lighting system (10; 10a) according to the sixteenth aspect, in any one of the first to fourth aspects,
The lighting device (1) is
a blue LED emitting blue light,
a blue-green LED that emits blue-green light;
a green LED emitting green light,
a yellow LED emitting yellow light,
an orange LED emitting orange light,
a red LED emitting red light,
a blue LED that emits blue light; and a wavelength conversion unit that includes phosphor particles that are excited by the blue light and emit light of a longer wavelength than the blue light, and that emits light of an intermediate color from blue to white. a blue light source having
It includes a blue LED that emits blue light, phosphor particles that are excited by the blue light and emits light with a longer wavelength than the blue light, and has a wavelength conversion part that emits light of an intermediate color from bluish green to white. blue-green light source,
A green color including a blue LED that emits blue light and phosphor particles that are excited by the blue light and emit light of a longer wavelength than the blue light, and that has a wavelength conversion part that emits light of an intermediate color from green to white. light source,
A yellow light including a blue LED that emits blue light and a phosphor particle that is excited by the blue light and emits light of a longer wavelength than the blue light, and has a wavelength conversion part that emits light of an intermediate color from yellow to white. light source,
An orange color including a blue LED that emits blue light and phosphor particles that are excited by the blue light and emit light of a longer wavelength than the blue light, and that has a wavelength conversion part that emits light of an intermediate color from orange to white. light source,
A red LED that emits blue light, includes a phosphor particle that is excited by the blue light and emits light of a longer wavelength than the blue light, and has a wavelength conversion part that emits light of an intermediate color from red to white. light source,
An LED that emits light of a wavelength shorter than violet light, and a phosphor particle that is excited by the light of the short wavelength and emits light of a wavelength longer than the light of the short wavelength, and light of an intermediate color from blue to white. a blue light source comprising a wavelength converting portion that emits
An LED that emits light with a wavelength shorter than violet light, and phosphor particles that are excited by the light with the short wavelength and emit light with a longer wavelength than the light with the short wavelength, and have an intermediate color from bluish green to white. a blue-green light source comprising a wavelength converting portion that emits light;
Intermediate color light from green to white, including an LED that emits light of a wavelength shorter than violet light, and phosphor particles that are excited by the light of the short wavelength and emit light of a wavelength longer than the light of the short wavelength. a green light source comprising a wavelength converting portion that emits
An LED that emits light of a wavelength shorter than violet light, and a phosphor particle that is excited by the light of the short wavelength and emits light of a wavelength longer than the light of the short wavelength, and light of an intermediate color from yellow to white. a yellow light source comprising a wavelength converting portion that emits
Intermediate color light from orange to white, including an LED that emits light of a wavelength shorter than violet light, and phosphor particles that are excited by the light of the short wavelength and emit light of a wavelength longer than the light of the short wavelength. an orange light source comprising a wavelength converting portion that emits
Intermediate color light from red to white including an LED that emits light of a wavelength shorter than violet light and phosphor particles that are excited by the light of the short wavelength and emit light of a wavelength longer than the light of the short wavelength. a red light source comprising a wavelength converting portion that emits
It has at least three or more of

1 lighting device (first lighting device)
2 second lighting device 3 control device 6 sterilization device 7 infrared image sensor 11 light source 11R red LED
11G green LED
11B Blue LED
11W white LED
111 first blue LED
112 second blue LED
13 visible light LED
14 visible light LEDs
121 first wavelength converter 122 second wavelength converter 123 third wavelength converter 124 fourth wavelength converter 131 first violet LED
132 second violet LED
133 third violet LED
141 first wavelength converter 142 second wavelength converter 143 third wavelength converter 15 visible light LED
16 visible light LEDs
10, 10a lighting system 200 facility 201 target space P10 people

Claims (15)

1. a lighting device arranged in the facility;
   a control device that controls the lighting device,
   The control device presents a sign indicating the presence of the sterilizing substance in the space to be illuminated by the lighting device when acquiring information that the sterilizing substance supplied from the sterilizing device exists in the space to be illuminated by the lighting device. controlling the illumination light of the illumination device to color illumination light of a color different from white,
   lighting system.
2. When the control device acquires information that the sterilization substance is no longer present, the control device controls the illumination light of the lighting device so as to present a sign indicating that the sterilization process has ended.
   10. The lighting system of claim 1.
3. The sterilizing substance is hypochlorous acid or sterilizing alcohol,
   3. A lighting system according to claim 1 or 2.
4. comprising a plurality of the lighting devices,
   The control device controls at least one lighting device that presents the sign among the plurality of lighting devices.
   Illumination system according to any one of claims 1-3.
5. The lighting device
   a blue LED that emits blue light;
   a green LED emitting green light;
   a red LED emitting red light;
   a light source having a white LED that emits white light;
   Illumination system according to any one of the preceding claims.
6. The lighting device
   a first blue LED that emits a first blue light;
   a second blue LED that emits a second blue light;
   a first wavelength conversion unit including green phosphor particles that are excited by the first blue light to emit green light;
   a second wavelength conversion unit including red phosphor particles that are excited by the second blue light to emit red light;
   a visible light LED that emits visible light of a color different from the first blue light, the second blue light, and the white light;
   Illumination system according to any one of the preceding claims.
7. The lighting device
   a first violet LED that emits a first violet light;
   a second violet LED that emits a second violet light;
   a third violet LED that emits third violet light;
   a first wavelength conversion unit including blue phosphor particles that are excited by the first violet light to emit blue light;
   a second wavelength conversion unit including green phosphor particles that are excited by the second violet light to emit green light;
   a third wavelength conversion unit including red phosphor particles that emit red light when excited by the third violet light,
   Illumination system according to any one of the preceding claims.
8. The lighting device
   a first blue LED that emits a first blue light;
   a second blue LED that emits a second blue light;
   a third blue LED that emits a third blue light;
   a first wavelength conversion unit that includes phosphor particles that are excited by the first blue light to emit light of a longer wavelength than the first blue light, and that emits light of a first intermediate color from blue to white;
   a second wavelength conversion unit that includes phosphor particles that are excited by the second blue light to emit light of a longer wavelength than the second blue light, and that emits light of a second intermediate color from green to white;
   a third wavelength conversion unit that includes phosphor particles that are excited by the third blue light to emit light of a longer wavelength than the third blue light, and that emits light of a third intermediate color from red to white; with a light source,
   Illumination system according to any one of the preceding claims.
9. The lighting device
   a first blue LED that emits a first blue light;
   a second blue LED that emits a second blue light;
   a third blue LED that emits a third blue light;
   a fourth blue LED that emits a fourth blue light;
   a first wavelength conversion unit that includes phosphor particles that are excited by the first blue light to emit light of a longer wavelength than the first blue light, and that emits light of a first intermediate color from blue to white;
   a second wavelength conversion unit that includes phosphor particles that are excited by the second blue light to emit light of a longer wavelength than the second blue light, and that emits light of a second intermediate color from green to white;
   a third wavelength conversion unit that includes phosphor particles that are excited by the third blue light to emit light of a longer wavelength than the third blue light, and that emits light of a third intermediate color from red to white;
   The phosphor particles are excited by the fourth blue light to emit light having a longer wavelength than the fourth blue light, and emit light of a fourth intermediate color from a color different from blue, green and red to white. A light source having a four-wavelength conversion unit,
   Illumination system according to any one of the preceding claims.
10. The lighting device
    a first blue LED that emits a first blue light;
    a second blue LED that emits a second blue light;
    a third blue LED that emits a third blue light;
    a first wavelength conversion unit that includes phosphor particles that are excited by the first blue light to emit light of a longer wavelength than the first blue light, and that emits light of a first intermediate color from blue to white;
    a second wavelength conversion unit that includes phosphor particles that are excited by the second blue light to emit light of a longer wavelength than the second blue light, and that emits light of a second intermediate color from green to white;
    a third wavelength conversion unit that includes phosphor particles that are excited by the third blue light to emit light of a longer wavelength than the third blue light, and that emits light of a third intermediate color from red to white;
    Emitting visible light of a color different from the first blue light, the second blue light, the third blue light, the first intermediate color light, the second intermediate color light, the third intermediate color light and white light a light source having a visible light LED that
    Illumination system according to any one of the preceding claims.
11. further comprising a second lighting device that is separate from the first lighting device that is the lighting device and that is arranged in the facility;
    Illumination light of the second lighting device is white light with a correlated color temperature of 2700 K or more and 6000 K or less,
    The control device controls the second lighting device,
    Illumination system according to any one of the preceding claims.
12. A control method for controlling a lighting device arranged in a facility, comprising:
    The illumination light of the lighting device is set to white so as to present a sign indicating the presence of the sterilizing substance in the space to be illuminated when the information that the sterilizing substance exists in the space to be illuminated by the lighting device is obtained. is to control the color illumination light of different colors,
    control method.
13. to the computer system,
    A program for executing the control method according to claim 12.
14. a lighting system according to any one of claims 1 to 11;
    a sterilization device that generates the sterilization substance,
    Environmental control system.
15. Further comprising an infrared image sensor for detecting the presence or absence of the sterilization substance in the illumination target space based on an image generated by capturing an image of the illumination target space by radiating infrared rays from an infrared light source into the illumination target space,
    The control device controls the lighting device based on the detection result of the infrared image sensor.
    15. The environmental control system of claim 14.

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