Lighting System

Abstract

The problem addressed by the present invention is to provide a lighting system and a method for manufacturing the lighting system that enable a lighting environment to be easily modified. A lighting system (100) comprises: a plurality of functional units (10); and a mounting base (5). The mounting base (5) has a plurality of areas in which the plurality of functional units (10) are arranged, the plurality of functional units (10) being mounted detachably. The plurality of functional units (10) include: first lighting units (1) having a function for emitting first illumination light of a first light distribution angle; and second lighting units (2) having a function for emitting second illumination light of a second light distribution angle greater than the first light distribution angle.

Description

[Technical field]

[0001] The present disclosure generally relates to an illumination system and a manufacturing method for the illumination system, and more particularly, to an illumination system capable of providing first illumination light and second illumination light having a larger luminous intensity distribution angle than the first illumination light, and a manufacturing method for the illumination system. [Background technology]

[0002] Patent Document 1 discloses a lighting system including at least one ambient light that illuminates a wide area of ​​a specified space, and at least one task light that locally illuminates a work area within the specified space.

[0003] In the lighting system described in Patent Document 1, it was difficult to change the lighting environment when there was a change in the layout of the lighting target space in the facility. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] International Publication No. 2021 / 059907 Summary of the Invention

[0005] The object of the present disclosure is to provide a lighting system that allows easy change of the lighting environment. M The purpose is to provide.

[0006] A lighting system according to an aspect of the present disclosure includes a plurality of functional units and an attachment base. The attachment base has a plurality of areas in which the plurality of functional units are arranged, and the plurality of functional units are detachably attached to the attachment base. The plurality of functional units include a first lighting unit having a function of emitting a first illumination light with a first light distribution angle, and a second lighting unit having a function of emitting a second illumination light with a second light distribution angle larger than the first light distribution angle. The first lighting unit is a lighting unit for task lighting, and the second lighting unit is a lighting unit for ambient lighting. A lighting system according to one aspect of the present disclosure includes a plurality of functional units and a mounting base. The mounting base has a plurality of areas in which the plurality of functional units are arranged, and the plurality of functional units are removably attached. The plurality of functional units include a first lighting unit having a function of emitting a first illumination light with a first light distribution angle, and a second lighting unit having a function of emitting a second illumination light with a second light distribution angle larger than the first light distribution angle. The plurality of areas are arranged in an array on the mounting base. The mounting base is in the shape of a lattice frame having a plurality of openings that define the plurality of areas. A lighting system according to one aspect of the present disclosure includes a plurality of functional units and an attachment base. The attachment base has a plurality of areas in which the plurality of functional units are arranged, and the plurality of functional units are detachably attached to the attachment base. The plurality of functional units include a first lighting unit having a function of emitting first illumination light with a first light distribution angle, and a second lighting unit having a function of emitting second illumination light with a second light distribution angle larger than the first light distribution angle. The first lighting unit is capable of varying at least one of the first light distribution angle of the first illumination light and an irradiation direction of the first illumination light. A lighting system according to an aspect of the present disclosure includes a plurality of functional units and an attachment base. The attachment base has a plurality of areas in which the plurality of functional units are arranged, and the plurality of functional units are detachably attached. The plurality of functional units include a first lighting unit having a function of emitting a first illumination light with a first light distribution angle, and a second lighting unit having a function of emitting a second illumination light with a second light distribution angle larger than the first light distribution angle. The lighting system further includes a controller that controls the first lighting unit and the second lighting unit. The first lighting unit has a first communication unit capable of wireless communication with the controller. The second lighting unit has a second communication unit capable of wireless communication with the controller. The controller has a communication unit capable of communicating with the first communication unit and the second communication unit. The controller controls at least one of the first lighting unit and the second lighting unit based on an output of a sensor that detects a target object. [Brief description of the drawings]

[0008] [Figure 1] FIG. 1 is a perspective view showing an illumination device in an illumination system according to a first embodiment, as viewed from below. [Diagram 2] FIG. 2 is a front view of a lighting device in the lighting system. [Diagram 3] FIG. 3 is a perspective view showing a lighting device in the lighting system as viewed from above. [Figure 4] FIG. 4 is a bottom view of the lighting device in the lighting system. [Diagram 5] FIG. 5 is an exploded perspective view showing the lighting device in the lighting system of the above embodiment, as viewed from below. [Figure 6] FIG. 6 is an exploded perspective view of the lighting device in the lighting system as viewed from above. [Figure 7] FIG. 7 is a plan view of a light source module in the above lighting system. [Figure 8] FIG. 8 is a block diagram of the above lighting system. [Figure 9] FIG. 9 is an explanatory diagram of an operation example of the lighting system according to the above embodiment. [Figure 10] 10A and 10B are explanatory diagrams of an operation example of a first example in which the layout of a plurality of functional units is changed in the lighting system of the above embodiment. [Figure 11] FIG. 11 is an explanatory diagram of another operation example of the first example in which the layout of the plurality of functional units is changed in the lighting system of the above embodiment. [Figure 12] FIG. 12 is an explanatory diagram of another operation example of the first example in which the layout of the plurality of functional units is changed in the lighting system of the above embodiment. [Figure 13] FIG. 13 is a bottom view of the lighting device in the lighting system according to the second embodiment. [Figure 14] FIG. 14 is an explanatory diagram of an operation example of the lighting system according to the above embodiment. [Figure 15] FIG. 15 is an explanatory diagram of another operation example of the lighting system according to the above embodiment. [Figure 16] FIG. 16 is an explanatory diagram of still another operation example of the lighting system. [Figure 17] FIG. 17 is an explanatory diagram of another operation example of the lighting system according to the above embodiment. [Figure 18] FIG. 18 is a bottom view of the lighting device in the lighting system according to the third embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] The drawings described in the following embodiments 1 to 3 are schematic drawings, and the size ratios of the components in the drawings do not necessarily reflect the actual dimensional ratios.

[0010] (Embodiment 1) Hereinafter, a lighting system 100 according to a first embodiment will be described with reference to FIGS.

[0011] (1) Overview As shown in Figs. 1 to 6, the lighting system 100 according to the first embodiment includes a plurality of functional units 10 and an attachment base 5. The attachment base 5 has a plurality of areas 51 (see Figs. 3, 5, and 6) in which a plurality of (16 in the example of Fig. 1) functional units 10 are arranged, and the plurality of functional units 10 are detachably attached. The plurality of areas 51 have the same shape. The plurality of functional units 10 includes a plurality of (four in the example of Fig. 1) first lighting units 1 and a plurality of (12 in the example of Fig. 1) second lighting units 2. Each of the plurality of first lighting units 1 has a function of emitting a first illumination light L1 (only the first illumination light L1 irradiated from one first lighting unit 1 is illustrated in Fig. 2). Each of the plurality of second lighting units 2 has a function of emitting a second illumination light L2 (only the second illumination light L2 emitted from one second lighting unit 2 is illustrated in Fig. 2). The second light distribution angle θ2 (see FIG. 2) of the second illumination light L2 emitted from each of the multiple second lighting units 2 is larger than the first light distribution angle θ1 (see FIG. 2) of the first illumination light L1 emitted from each of the multiple first lighting units 1.

[0012] Moreover, the lighting system 100 further includes a controller 7 (see FIG. 8). The controller 7 controls the plurality of first lighting units 1 and the plurality of second lighting units 2.

[0013] In the lighting system 100, the lighting device LA1 including the multiple functional units 10 and the mounting base 5 is arranged in, for example, a facility 200 (see FIG. 9). The facility 200 is assumed to be a building, particularly an office building. For convenience of explanation, the space in the facility 200 to which the light emission surfaces of the multiple first lighting units 1 and the multiple second lighting units 2 face is referred to as a target space 201. The target space 201 is a space used by a person P10 in the facility 200. Examples of the target space 201 include a conference room, a working space, and a coworking space. The facility 200 is not limited to an office building, and may be an office, a factory, a hospital, a detached house, an apartment building, or the like.

[0014] (2)Details The lighting system 100 according to the first embodiment will be described in further detail below with reference to FIGS.

[0015] As described above, the lighting system 100 includes a plurality of functional units 10 (16 in the example of FIG. 1), a mounting base 5, and a controller 7 (see FIG. 8).

[0016] In the lighting system 100, the lighting device LA1 including a plurality of functional units 10 and a mounting base 5 is arranged on a ceiling 202 facing a target space 201 in a facility 200 (see FIG. 9). The target space 201 is a space below the ceiling 202. In the target space 201 in the facility 200, a plurality of desks 220 (only one desk 220 is shown in FIG. 9), a plurality of chairs 230 (only one chair 230 is shown in FIG. 9), and the like are arranged as furniture that can be used by a person P10. The lighting device LA1 is square-shaped as viewed from the target space 201, but is not limited thereto, and may be rectangular-shaped, for example. The plurality of functional units 10 are arranged in a two-dimensional array as viewed from the target space 201. The lighting device LA1 further includes a rectangular frame-shaped holding member 6 (see FIG. 4) that holds the mounting base 5. The holding member 6 surrounds the plurality of functional units 10 and the mounting base 5 arranged in an array. The material of the holding member 6 includes, for example, a metal.

[0017] The lighting device LA1 may be a ceiling-embedded lighting fixture, a ceiling-mounted lighting fixture, a panel-shaped lighting fixture supported by a grid-shaped support member included in a system ceiling, or a ceiling-suspended lighting fixture.

[0018] As described above, the multiple functional units 10 include multiple (four in the example of FIG. 1) first lighting units 1 and multiple (twelve in the example of FIG. 1) second lighting units 2.

[0019] Each of the first lighting units 1 is, for example, a lighting unit for task lighting, and each of the second lighting units 2 is, for example, a lighting unit for ambient lighting.

[0020] Each of the first lighting units 1 is, for example, a universal downlight, and can change the irradiation direction of the first illumination light L1 (see FIG. 2). Each of the first lighting units 1 has, for example, a first light source module 13 (see FIG. 8), a lens 16 (see FIG. 5), a lamp body 17 (see FIGS. 2, 5, and 6), a frame 18 (see FIGS. 5 and 6), and a base 19 (see FIGS. 2, 5, and 6). The lens 16 is disposed in front of the first light source module 13, and emits light from the first light source module 13 to the outside (target space 201) as the first illumination light L1. The lens 16 is disposed so that the optical axis of the lens 16 coincides with the optical axis of the first light source module 13. The lens 16 controls the light distribution of the light emitted from the first light source module 13. The lens 16 is, for example, a Fresnel lens. The lens 16 may be a lens other than a Fresnel lens. The lamp body 17 has a first end and a second end, and is a bottomed cylindrical shape with a bottom wall at the second end. The lamp body 17 houses the lens 16 and the first light source module 13. The frame 18 surrounds the first end of the lamp body 17 over the entire circumference, and supports the lamp body 17 so that it can rotate. The frame 18 is attached to the base 19. The base 19 includes a base body 191 and a flange 192. The base body 191 is in the shape of a flat frame. The inner edge of the base body 191 is circular. The outer edge of the base body 191 is rectangular (square in the illustrated example). The base body 191 is disposed in any one of the multiple openings of the mounting base 5. The multiple openings of the mounting base 5 correspond one-to-one to the multiple areas 51 of the mounting base 5. Therefore, the base body 191 is disposed in any one of the areas 51 of the mounting base 5. The base 19 is detachably attached to the mounting base 5 by a plurality of screws with the flange 192 overlapping the main surface (lower surface) of the mounting base 5. The plurality of first lighting units 1 can change the irradiation direction of the first illumination light L1 by changing the attitude of the lamp body 17 with respect to the frame 18. That is, each of the plurality of first lighting units 1 has an irradiation direction adjustment unit 15 (see FIG. 8) that adjusts the irradiation direction of the first illumination light L1.The illumination direction adjustment unit 15 is, for example, a rotation mechanism that changes the attitude of the lighting body unit 17 relative to the frame body 18 by rotating the lighting body unit 17 through manual operation by a contractor or the like, but is not limited to this, and may also be a rotation mechanism that changes the attitude of the lighting body unit 17 relative to the frame body 18 by moving the lighting body unit 17 with a motor or the like.

[0021] Further, each of the plurality of first lighting units 1 can change the first light distribution angle θ1 of the first illumination light L1 (see FIG. 2). In each of the plurality of first lighting units 1, an optical block including a lens 16 is rotatably held by a lamp body part 17, and the distance between the first light source module 13 and the lens 16 in the direction along the optical axis of the lens 16 is changed by rotating the optical block relative to the lamp body part 17 around the optical axis of the lens 16. Therefore, in each of the plurality of first lighting units 1, the first light distribution angle θ1 of the first illumination light L1 can be changed by changing the distance between the first light source module 13 and the lens 16 in the direction along the optical axis of the lens 16. Each of the plurality of first lighting units 1 has a light distribution angle adjustment part 14 (see FIG. 8) that adjusts the first light distribution angle θ1 of the first illumination light L1. The light distribution angle adjustment unit 14 is, for example, a movable mechanism that changes the distance between the lens 16 and the first light source module 13 by rotating an optical block by manual operation by a contractor or the like, but is not limited to this and may be a movable mechanism that changes the distance between the lens 16 and the first light source module 13 by electrically moving the optical block. Each of the multiple first lighting units 1 is capable of controlling the first light distribution angle θ1 of the first illumination light L1 in a range of, for example, 14 degrees or more and 36 degrees or less.

[0022] Each of the first lighting units 1 further includes a first control unit 12 that controls the first light source module 13, as shown in FIG. 8, for example. Each of the first lighting units 1 further includes a first communication unit 11. The first communication unit 11 is a communication interface capable of wireless communication with an external wireless device (for example, a controller 7). In each of the first lighting units 1, the first control unit 12 controls the first light source module 13 based on information acquired via the first communication unit 11. The controller 7 controls at least one of the first lighting units 1 based on, for example, an output of a sensor 8 that detects a target object. The controller 7 may control at least one of the first lighting units 1 according to a preset schedule.

[0023] The first control unit 12 includes a computer system. The computer system is mainly composed of a processor and a memory as hardware. The function of the first control unit 12 is realized by the processor executing a program recorded in the memory of the computer system. The program may be pre-recorded in the memory of the computer system, may be provided through an electric communication line, or may be recorded and provided in a non-transitory recording medium such as a memory card, an optical disk, or a hard disk drive that can be read by the computer system. The processor of the computer system is composed of one or more electronic circuits including a semiconductor integrated circuit (IC) or a large scale integrated circuit (LSI). The integrated circuits such as IC or LSI mentioned here are called by different names depending on the degree of integration, and include integrated circuits called system LSI, VLSI (Very Large Scale Integration), or ULSI (Ultra Large Scale Integration). Furthermore, a field-programmable gate array (FPGA) that is programmed after the manufacture of the LSI, or a logic device that can reconfigure the connection relationship inside the LSI or reconfigure the circuit partition inside the LSI, can also be adopted as a processor. The electronic circuits may be integrated in one chip or distributed across multiple chips. The multiple chips may be integrated into one device, or may be distributed across multiple devices. The computer system referred to here includes a microcontroller having one or more processors and one or more memories. Therefore, the microcontroller is also composed of one or more electronic circuits including a semiconductor integrated circuit or a large-scale integrated circuit.

[0024] Each of the second lighting units 2 is, for example, a ceiling light, and emits the second illumination light L2 to an irradiation range wider than the irradiation range of the first illumination light L1 of the first lighting unit 1 to the target space 201 (see FIG. 2). Each of the second lighting units 2 has, for example, a second light source module 23 (see FIG. 8), a fixture body 27 (see FIGS. 2, 5, and 6), a cover 28 (see FIGS. 2, 5, and 6), and a plurality of heat dissipation fins 29 (see FIGS. 2, 3, and 6). The second light source module 23 is held by the fixture body 27. The cover 28 is attached to the fixture body 27 so as to cover the second light source module 23, and emits light from the second light source module 23 to the outside (target space 201) as the second illumination light L2. The cover 28 is separated from the second light source module 23. The cover 28 diffuses the light emitted from the second light source module 23 and emits it to the outside. The multiple heat dissipation fins 29 protrude from the surface of the fixture body 27 opposite to the second light source module 23 side. The outer edge of the fixture body 27 is rectangular (square in the illustrated example). A part of the fixture body 27 is disposed in any one of the multiple openings of the mounting base 5. In other words, a part of the fixture body 27 is disposed in any one of the multiple areas 51 of the mounting base 5. The fixture body 27 is detachably attached to the mounting base 5 by multiple screws with the outer periphery of the fixture body 27 overlapping the main surface (lower surface) of the mounting base 5.

[0025] Each of the second lighting units 2 further includes a second control unit 22 that controls the second light source module 23, as shown in FIG. 8, for example. Each of the second lighting units 2 further includes a second communication unit 21. The second communication unit 21 is a communication interface capable of wireless communication with an external wireless device (for example, the controller 7). In each of the second lighting units 2, the second control unit 22 controls the second light source module 23 based on information acquired via the second communication unit 21. The controller 7 controls at least one of the second lighting units 2 based on, for example, an output of a sensor 8 that detects a target object. The controller 7 may control at least one of the second lighting units 2 according to a preset schedule.

[0026] The second control unit 22 includes a computer system. The computer system is mainly composed of a processor and a memory as hardware. The function of the second control unit 22 is realized by the processor executing a program recorded in the memory of the computer system. The program may be pre-recorded in the memory of the computer system, may be provided through an electric communication line, or may be provided by being recorded in a non-transitory recording medium such as a memory card, an optical disk, or a hard disk drive that can be read by the computer system. The processor of the computer system is composed of one or more electronic circuits including a semiconductor integrated circuit or a large-scale integrated circuit. The integrated circuits such as IC or LSI mentioned here are called differently depending on the degree of integration, and include integrated circuits called system LSI, VLSI, or ULSI. Furthermore, FPGAs, which are programmed after the manufacture of LSIs, or logic devices that can reconfigure the connection relationship inside LSIs or reconfigure the circuit partitions inside LSIs, can also be adopted as processors. The multiple electronic circuits may be integrated in one chip or distributed across multiple chips. The multiple chips may be integrated in one device or distributed across multiple devices. The computer system referred to here includes a microcontroller having one or more processors and one or more memories. Therefore, the microcontroller is also composed of one or more electronic circuits including a semiconductor integrated circuit or a large-scale integrated circuit.

[0027] In the lighting device LA1, each of the first lighting units 1 has at least one of a dimming function and a color adjustment function. The dimming function of each of the first lighting units 1 is, for example, a function to change the luminance of the first illumination light L1. The color adjustment function of each of the first lighting units 1 is, for example, a function to change the color temperature, chromaticity coordinates, etc. of the first illumination light L1.

[0028] In the lighting device LA1, each of the second lighting units 2 has at least one of a dimming function and a color adjustment function. The dimming function of each of the second lighting units 2 is, for example, a function to change the luminance of the second illumination light L2. The color adjustment function of each of the second lighting units 2 is, for example, a function to change the color temperature, chromaticity coordinates, etc. of the second illumination light L2.

[0029] Each of the first light source module 13 and the second light source module 23 is, for example, an LED module 4 as shown in FIG.

[0030] The LED module 4 includes, for example, a mounting substrate 40 and a plurality (for example, 32) of LEDs (Light Emitting Diodes). The mounting substrate 40 is, for example, a printed wiring board. In a plan view from the thickness direction of the mounting substrate 40, the outer edge of the mounting substrate 40 is rectangular, but is not limited thereto and may be, for example, circular. The plurality (for example, 32) of LEDs includes a plurality (six in the example of FIG. 7) of blue LEDs 41, a plurality (six in the example of FIG. 7) of green LEDs 42, a plurality (six in the example of FIG. 7) of red LEDs 43, and a plurality (14 in the example of FIG. 7) of yellow LEDs 44. 7, the blue LEDs 41, the green LEDs 42, the red LEDs 43, and the yellow LEDs 44 are hatched, but this hatching does not represent a cross section, but is merely added to make it easier to understand the relative positional relationship between the blue LEDs 41, the green LEDs 42, the red LEDs 43, and the yellow LEDs 44. In FIG. 7, the blue LEDs 41, the green LEDs 42, the red LEDs 43, and the yellow LEDs 44 are hatched differently from one another.

[0031] The blue LEDs 41 are mounted on the mounting substrate 40. Each of the blue LEDs 41 emits blue light. The green LEDs 42 are mounted on the mounting substrate 40 and emit green light. The red LED 43 is mounted on the mounting substrate 40 and emits red light. The yellow LED 44 is mounted on the mounting substrate 40 and emits yellow light. In the LED module 4, six blue LEDs 41, six green LEDs 42, six red LEDs 43, and six yellow LEDs 44 are arranged in the center of the mounting substrate 40 such that LEDs of the same luminous color are not adjacent to each other. In the LED module 4, eight yellow LEDs 44 are arranged on the periphery of the mounting substrate 40, spaced apart from each other in a direction along the outer edge of the mounting substrate 40. In the LED module 4, for example, a series circuit of the blue LEDs 41, a series circuit of the green LEDs 42, a series circuit of the red LEDs 43, and a series circuit of the yellow LEDs 44 are configured. The LED module 4 further has a pair of first terminals for passing a current through the series circuit of the plurality of blue LEDs 41, a pair of second terminals for passing a current through the series circuit of the plurality of green LEDs 42, a pair of third terminals for passing a current through the series circuit of the plurality of red LEDs 43, and a pair of fourth terminals for passing a current through the series circuit of the plurality of yellow LEDs 44. The LED module 4 is not limited to a configuration in which a plurality of LEDs of the same emitting color are connected in series, and may be a configuration in which LEDs of the same emitting color are connected in parallel or in series-parallel.

[0032] Each of the first control unit 12 of the first lighting unit 1 and the second control unit 22 of the second lighting unit 2 includes a first drive circuit for driving the blue LEDs 41, a second drive circuit for driving the green LEDs 42, a third drive circuit for driving the red LEDs 43, a fourth drive circuit for driving the yellow LEDs 44, and a control circuit for controlling the first to fourth drive circuits. In each of the first lighting units 1, the control circuit of the first control unit 12 controls the first to fourth drive circuits of the first control unit 12, so that it is possible to output, as the first illumination light L1, any one of white light, blue light, green light, and red light, or light of a color obtained by mixing two or more of these. In each of the second lighting units 2, the control circuit of the second control unit 22 controls the first to fourth drive circuits of the second control unit 22, so that it is possible to output, as the second illumination light L2, any one of white light, blue light, green light, and red light, or light of a color obtained by mixing two or more of these. In short, each of the multiple first lighting units 1 and multiple second lighting units 2 can output, as color illumination light or white light, light of a color corresponding to any chromaticity point within a quadrangle whose vertices are the chromaticity point of the blue light emitted from the blue LED 41, the chromaticity point of the green light emitted from the green LED 42, the chromaticity point of the red light emitted from the red LED 43, and the chromaticity point of the yellow light emitted from the yellow LED 44 in an xy chromaticity diagram of the XYZ color system. The white light is preferably light of a chromaticity corresponding to a chromaticity point on the blackbody locus in the xy chromaticity diagram of the XYZ color system.

[0033] In the mounting base 5, as shown in Figs. 3, 5 and 6, a plurality of areas 51 are arranged in a two-dimensional array. Here, the mounting base 5 is in the form of a lattice frame having a plurality of openings that define the plurality of areas 51. The material of the mounting base 5 includes, for example, a metal. More specifically, the mounting base 5 is made of a metal plate having a plurality of openings that correspond one-to-one to the plurality of areas 51. In the mounting base, the shapes of the plurality of openings are the same. Note that the mounting base 5 is not limited to a lattice shape, and may have a plurality of openings.

[0034] In the lighting system 100, for example, by controlling each of the multiple first lighting units 1 with the controller 7 (see FIG. 8), it is possible to control the first illumination light L1 emitted from each of the multiple first lighting units 1 to be white, and to control it to a color illumination light of a color different from white. Also, in the lighting system 100, for example, by controlling each of the multiple second lighting units 2 with the controller 7, it is possible to control the second illumination light L2 emitted from each of the multiple second lighting units 2 to be white, and to control it to a color illumination light of a color different from white.

[0035] As shown in FIG. 8, the controller 7 has a control unit 72 that controls the multiple functional units 10 (the multiple first lighting units 1 and the multiple second lighting units 2). The controller 7 has a communication unit 71 that can communicate with the multiple functional units 10 (the first communication unit 11 of the multiple first lighting units 1 and the second communication unit 21 of the multiple second lighting units 2), and the controller 7 can transmit a control signal to each of the multiple functional units 10 (the multiple first lighting units 1 and the multiple second lighting units 2). Individual identification information (unique address) is set for each of the multiple functional units 10 (the multiple first lighting units 1 and the multiple second lighting units 2). Each of the multiple functional units 10 (the multiple first lighting units 1 and the multiple second lighting units 2) has a storage unit that stores a unique address. In the controller 7, the control unit 72 has, as operation modes, a first mode (collective control mode) in which two or more of the functional units 10 (the first lighting units 1 and the second lighting units 2) are collectively controlled with the same control content, a second mode (pattern control mode) in which one or more functional units 10 are controlled with control content set in advance for each functional unit, and a third mode (individual control mode) in which the functional units 10 are individually controlled. The control unit 72 includes a memory that stores the unique addresses of the functional units 10. The control unit 72 also stores in the memory a collective control address used in the first mode and a group control address used in the second mode. In this case, the memory units of the functional units 10 store the group control address and the collective control address in addition to the unique addresses.

[0036] The controller 7 controls at least one of the plurality of first lighting units 1 and the plurality of second lighting units 2 based on, for example, information on the detection result of a sensor 8 arranged in a facility 200 (see FIG. 9). The sensor 8 is, for example, a human detection sensor that detects a person P10 (see FIG. 9), but is not limited thereto and may be, for example, a temperature sensor, an air quality sensor, or the like. The human detection sensor may be, for example, a load sensor arranged on a chair 230 (see FIG. 9), or an infrared human body detection sensor or an image sensor arranged on a ceiling or the like. The air quality sensor measures the air quality of the target space 201. The air quality represents factors related to the quality of air for people to live healthily and comfortably, and more specifically, is classified into environmental factors of chemical factors, biological factors, and physical factors. The chemical factors include carbon dioxide, volatile organic compounds (VOCs), and odor components. The biological factors include house dust and pollen, and the physical factors include temperature and humidity. House dust refers to mold, viruses, mite feces, pet skin flakes, etc. The air quality sensor measures, for example, the concentration of carbon dioxide in the target space 201 as a factor of air quality.

[0037] The controller 7 includes a computer system. The computer system is mainly composed of a processor and a memory as hardware. The function of the controller 7 is realized by the processor executing a program recorded in the memory of the computer system. The program may be pre-recorded in the memory of the computer system, provided through an electric communication line, or recorded and provided in a non-transitory recording medium such as a memory card, an optical disk, or a hard disk drive that can be read by the computer system. The processor of the computer system is composed of one or more electronic circuits including a semiconductor integrated circuit or a large-scale integrated circuit. The integrated circuits such as IC or LSI referred to here are called different names depending on the degree of integration, and include integrated circuits called system LSI, VLSI, or ULSI. Furthermore, FPGAs, which are programmed after the manufacture of LSIs, or logic devices that can reconfigure the connection relationship inside LSIs or reconfigure the circuit partitions inside LSIs, can also be adopted as processors. The multiple electronic circuits may be integrated in one chip or distributed across multiple chips. The multiple chips may be integrated in one device or distributed across multiple devices. The computer system referred to here includes a microcontroller having one or more processors and one or more memories. Therefore, the microcontroller is also composed of one or more electronic circuits including a semiconductor integrated circuit or a large-scale integrated circuit.

[0038] The controller 7 may be connectable to, for example, a management device that stores facility information of the facility 200 via a communication network. The management device is, for example, a server. The communication network may include the Internet. The communication network may be configured not only of a network conforming to a single communication protocol, but also of multiple networks conforming to different communication protocols. The communication protocol may be selected from various well-known wired communication standards and wireless communication standards. The communication network may include, for example, data communication devices such as a repeater hub, a switching hub, a bridge, a gateway, and a router.

[0039] The facility information is, for example, a part or the whole of three-dimensional data that represents the structure of the facility 200. The three-dimensional data is data that represents the facility 200 in a virtual space constructed using a computer. An example of this type of three-dimensional data is BIM (Building Information Modeling) data. Hereinafter, the three-dimensional data will be referred to as "BIM data."

[0040] The BIM data integrates 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 relating to the components constituting the facility 200 and data relating to the equipment and facilities arranged in the facility 200. 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 data for building the facility 200, but also the totality of various data related to the facility 200. The 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 the BIM data, for example, it is possible to display a figure representing the entirety or a part of the facility 200 on a display. The BIM data is hierarchical according to the facility 200. The BIM data includes, for example, information representing the entirety of the facility 200 in a front view or a perspective view, information representing each of the multiple 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. For example, BIM data includes data showing a perspective view of an entire building that is the facility 200, data showing a floor plan of one floor in a building, or data showing a perspective view of a room seen from the inside. Facility information (BIM data) and location information can be displayed using software capable of executing programs written in a programming language such as Java (registered trademark). For example, a web browser that supports WebGL (Web Graphics Library) can display three-dimensional data of the facility 200 on a display unit.

[0041] The controller 7 may specify the position information (position coordinates of the functional units 10 in the facility 200) of the multiple functional units 10 in the facility 200 based on the BIM information acquired from an external device (for example, the above-mentioned management device), and store the position information of the multiple functional units 10 in the facility 200 in one-to-one correspondence with the unique addresses of the multiple functional units 10 in the above-mentioned memory. The control signal from the control unit 72 to each functional unit 10 includes address data corresponding to the unique address, collective control address, or group control address of the functional unit 10 to be controlled, and control data indicating the control contents (color of the illumination light, on, off, blinking, illuminance, etc.) of the functional unit 10 to be controlled. The color of the illumination light is white or a color different from white (for example, red, green, blue, rust red, etc.). The control contents may include control data including control contents indicating the chromaticity of the illumination light instead of including control data including control contents indicating the color of the illumination light. In addition, the controller 7 may identify location information of multiple desks 220 (see Figure 9) or sensors 8 (position coordinates of desks 220 or position coordinates of sensors 8 in facility 200) based on BIM information acquired from an external device, and store in the above-mentioned memory in association with identification information of multiple functional units 10 in facility 200 and identification information of sensors 8.

[0042] The controller 7 has an acquisition unit 73 that acquires the detection result of the sensor 8. The control unit 72 may control at least one of the multiple functional units 10 based on the detection result acquired by the acquisition unit 73.

[0043] (3) Example of lighting system operation In the lighting system 100 according to the first embodiment, for example, as shown on the left side of FIG. 9, when there is no person P10 near a desk 220 in a target space 201 of a facility 200, the second illumination light L2 is emitted from a plurality of second lighting units 2 that illuminate the target space 201 including the desk 220. In FIG. 9, instead of illustrating the second illumination light L2 emitted from each of the plurality of second lighting units 2, an illumination light L21 obtained by combining the second illumination light L2 emitted from each of the plurality of second lighting units 2 is illustrated. In the lighting system 100, when a person P10 sitting on a chair 230 near the desk 220 in the target space 201 is detected, the first illumination light L1 is emitted from the first lighting unit 1 capable of irradiating the first illumination light L1 onto the working surface of the desk 220. At this time, the controller 7 controls the first illumination light L1 of the first lighting unit 1 to white light having a color temperature suitable for the work of the person P10.

[0044] (4) Manufacturing method of lighting system The manufacturing method of the lighting system 100 includes a first step of preparing a plurality of functional units 10 and a mounting base 5, and a second step of attaching the plurality of functional units 10 to the mounting base 5. Therefore, in the manufacturing method of the lighting system 100, it becomes possible to freely change the number and layout of each of the first lighting units 1 and the second lighting units 2 to be arranged in the plurality of areas 51 of the mounting base 5.

[0045] (5) Summary The lighting system 100 according to the first embodiment includes a plurality of functional units 10 and an attachment base 5. The attachment base 5 has a plurality of areas 51 in which the plurality of functional units 10 are arranged, and the plurality of functional units 10 are detachably attached. The plurality of functional units 10 include a plurality of first lighting units 1 and a plurality of second lighting units 2. Each of the plurality of first lighting units 1 has a function of emitting a first illumination light L1. Each of the plurality of second lighting units 2 has a function of emitting a second illumination light L2. A second light distribution angle θ2 of the second illumination light L2 emitted from each of the plurality of second lighting units 2 is larger than a first light distribution angle θ1 of the first illumination light L1 emitted from each of the plurality of first lighting units 1.

[0046] With the above configuration, the lighting system 100 according to the first embodiment can easily change the layout of the multiple first lighting units 1 and the multiple second lighting units 2, and therefore can easily change the lighting environment. As a result, the lighting system 100 according to the first embodiment can provide a more appropriate environment to the person P10 in the target space 201 in the facility 200. The lighting system 100 according to the first embodiment can realize an appropriate lighting environment according to the purpose or scene by determining the layout of the multiple first lighting units 1 and the multiple second lighting units 2 according to the purpose or scene.

[0047] In the lighting system 100 according to the first embodiment, each of the first lighting units 1 and the second lighting units 2 includes the LED module 4 having the above-mentioned blue LED 41, green LED 42, red LED 43, and yellow LED 44, so that it is possible to respond to various scenes by changing the state of the lighting environment by the color of the first illumination light L1 and the color of the second illumination light L2, etc. In addition, the lighting system 100 according to the first embodiment can individually control each of the first lighting units 1 and the second lighting units 2, so that it is possible to perform light production or present a predetermined signage by appropriately controlling the first lighting units 1 and the second lighting units 2 based on the detection result of the sensor 8.

[0048] 10A and 10B are explanatory diagrams of an operation example of a first example in which the layout of the multiple functional units 10 is changed in the lighting system 100 according to the first embodiment. The first example differs from the lighting system 100 according to the first embodiment in that one of the four first lighting units 1 in FIG. 4 (the first lighting unit 1 in the upper right of FIG. 4) is changed to a second lighting unit 2. In the operation example, the color of the second lighting light L2 for ambient lighting is changed according to the color of the sky that is visible to the human eye on a sunny day, for example. FIG. 10A shows a schematic diagram of lighting scenes in the morning and evening. In FIG. 10A, among one first lighting unit 1 and three second lighting units 2 arranged in a row, the color of the second lighting light L2 of the three second lighting units 2 for ambient lighting is orange, which evokes the color of a sunrise or sunset, and the color of the first lighting light L1 of one first lighting unit 1 for task lighting is white. By making the first illumination light L1 of the first illumination unit 1 white, the visibility of an object (for example, a personal computer) used in the work of the person P10 can be improved. In FIG. 10A, the orange illumination light L22 obtained by combining the second illumination light L2 of the three second illumination units 2 for ambient lighting is shown by dot hatching. Also, FIG. 10B shows a typical illumination scene during the day. In the example of FIG. 10B, the color of the second illumination light L2 of the three second illumination units 2 for ambient lighting is blue, reminiscent of the color of the blue sky, and the color of the first illumination light L1 of one first illumination unit 1 for task lighting is white. In FIG. 10B, the blue illumination light L23 obtained by combining the second illumination light L2 of the three second illumination units 2 for ambient lighting is shown by dot hatching.

[0049] FIG. 11 is an explanatory diagram of another operation example of the first example. FIG. 11 shows a schematic diagram of an illumination scene for the purpose of increasing the concentration of a person P10. In FIG. 11, the color of the second illumination light L2 of the three second illumination units 2 for ambient lighting is red, and the color of the first illumination light L1 of the one first illumination unit 1 for task lighting is white. In FIG. 11, the red illumination light L24 obtained by combining the second illumination light L2 of the three second illumination units 2 for ambient lighting is shown by dot hatching. In the first example, it is sufficient to change the color of the ambient lighting light according to an illumination scene for the purpose of a predetermined spatial presentation, and instead of the red illumination light L24, for example, green illumination light may be provided.

[0050] FIG. 12 is an explanatory diagram of another operation example of the first example. FIG. 12 shows a schematic lighting scene for emphasizing an object 300 in a facility 200. In FIG. 12, the color of the second illumination light L2 of the three second illumination units 2 for ambient lighting is warm, and the color of the first illumination light L1 of one first illumination unit 1 is red. In FIG. 12, warm-colored illumination light L25 obtained by combining the second illumination light L2 of the three second illumination units 2 for ambient lighting is shown by dot hatching. The first illumination light L1 may be illumination light of a color other than red.

[0051] (Embodiment 2) Hereinafter, a lighting system 100a according to the second embodiment will be described with reference to Figures 13 to 17. Regarding the lighting system 100a according to the second embodiment, components similar to those of the lighting system 100 according to the first embodiment will be denoted by the same reference numerals and will not be described.

[0052] The lighting system 100a has multiple (four in the example of FIG. 13) first lighting units 1 arranged in a row, and multiple (twelve in the example of FIG. 13) second lighting units 2 arranged in three rows.

[0053] In the lighting system 100a according to the second embodiment, for example, the lighting area illuminated by the first illumination light L1, the brightness of the first illumination light L1, the color temperature, the chromaticity coordinates, etc. of the first illumination light L1 are changed in response to the movement of the person P10.

[0054] Fig. 14 is an explanatory diagram of an operation example of the lighting system 100a according to the second embodiment. In Fig. 14, the color of the first illumination light L1 of the two first lighting units 1 on the left side in Fig. 14 is warm colored, and the color of the first illumination light L1 of the two first lighting units 1 on the right side in Fig. 14 is white colored, for the purpose of zoning the target space 201 in the facility 200 into two work spaces. In Fig. 14, the warm colored illumination light L11 obtained by combining the first illumination light L1 of the two first lighting units 1 on the left side is shown by dot hatching, and the white colored illumination light L12 obtained by combining the first illumination light L1 of the two first lighting units 1 on the right side is shown by dot hatching different from the illumination light L11. In the example of Fig. 14, each second lighting unit 2 is turned off, but may be turned on.

[0055] Fig. 15 is an explanatory diagram of another operation example of the lighting system 100a according to the second embodiment. Fig. 15 shows an example in which the lighting range by the first illumination light L1 of the first lighting unit 1 on the left side in Fig. 15 and the lighting range by the first illumination light L1 of the first lighting unit 1 on the right side are overlapped on the desk 220 on which the person P10 is working. In Fig. 15, the second and third first lighting units 1 from the left are turned off. In the example of Fig. 15, each second lighting unit 2 is turned off, but it may be turned on.

[0056] Fig. 16 is an explanatory diagram of yet another operation example of the lighting system 100a according to embodiment 2. Fig. 16 shows an example in which a total of eight first lighting units 1, each including two lighting devices LA1, are arranged in a row, and first illumination light L1 is emitted from two of the first lighting units 1 to illuminate a person P10 and his / her vicinity according to the position of the person P10 moving within a facility 200. In the example of Fig. 16, each second lighting unit 2 is turned off, but may be turned on.

[0057] Fig. 17 is an explanatory diagram of another operation example of the lighting system 100a according to embodiment 2. Fig. 17 shows an example in which, when a person P10 moving in a facility 200 is detected by a sensor 8, a first illumination light L1 from one of four first lighting units 1 is irradiated onto an object 300 located in front of the person P10 in the moving direction. In the example of Fig. 17, each second lighting unit 2 is turned off, but may be turned on.

[0058] (Embodiment 3) Hereinafter, a lighting system 100b according to a third embodiment will be described with reference to Fig. 18. Regarding the lighting system 100b according to the third embodiment, components similar to those of the lighting system 100 according to the first embodiment will be denoted by the same reference numerals and will not be described.

[0059] In a lighting system 100b according to the third embodiment, a plurality of (25 in the example of FIG. 18) functional units 10 include a plurality of (four) first lighting units 1, a plurality of (20 in the example of FIG. 18) second lighting units 2, and one sensor unit 3. The sensor unit 3 includes a sensor 8 (see FIG. 8). The sensor 8 is, for example, a human body detection sensor having a plurality of (for example, five) infrared detection elements (pyroelectric elements) that detect infrared rays emitted from a human body.

[0060] The lighting system 100b according to the third embodiment employs a sensor unit 3 as the central functional unit 10 among a plurality of functional units 10 arranged in a two-dimensional array.

[0061] In the lighting system 100b according to the third embodiment, it becomes easy to associate the detection area of ​​the sensor unit 3 with the lighting area of ​​the lighting system 100b.

[0062] (Modification) The above-described first to third embodiments are merely examples of the present disclosure. The above-described first to third embodiments may be modified in various ways depending on the design and the like, and the components may be appropriately combined, as long as the object of the present disclosure can be achieved.

[0063] For example, the multiple functional units 10 include multiple first lighting units 1 and multiple second lighting units 2, but are not limited thereto, and may include at least one first lighting unit 1 and at least one second lighting unit 2. In this case, the lighting systems 100, 100a, 100b may have areas 51 in which no functional units 10 are arranged, with respect to the multiple areas 51 of the mounting base 5.

[0064] The structure of the multiple functional units 10 is not limited to being attached to the mounting base 5 by screws, but may be, for example, a structure in which they are attached by connectors, magnets, mounting springs, or the like.

[0065] Furthermore, the multiple functional units 10 only need to include at least the first lighting unit 1 and the second lighting unit 2, and may further include at least one of an antenna unit, a communication unit, a speaker unit, an AI (Artificial Intelligence) speaker unit, etc. Furthermore, one of the multiple functional units 10 may constitute the controller 7.

[0066] Furthermore, the mounting base 5 is not limited to a case in which the areas 51 are arranged in a two-dimensional array, but may be, for example, a case in which the areas 51 are arranged in a one-dimensional array. The mounting base 5 may be in the form of a honeycomb lattice having a plurality of openings, each of which is hexagonal.

[0067] Furthermore, the mounting base 5 may be in the shape of a box with an internal space divided into a plurality of areas 51 .

[0068] Moreover, each of the plurality of first lighting units 1 may be a lighting unit in which only one of the first light distribution angle θ1 of the first illumination light L1 and the irradiation direction of the first illumination light L1 is variable. Also, each of the plurality of first lighting units 1 may be a lighting unit in which neither the first light distribution angle θ1 of the first illumination light L1 nor the irradiation direction of the first illumination light L1 is variable. The plurality of first lighting units 1 is not limited to downlights, and may be, for example, spotlights. Also, the plurality of second lighting units 2 may include a plurality of types of lighting units having different light distribution characteristics.

[0069] The controller 7 only needs to control at least one of the first lighting unit 1 and the second lighting unit 2 based on the output of a sensor 8 that detects a target object, and may control both the first lighting unit 1 and the second lighting unit 2.

[0070] The LED module 4 is not limited to a configuration having a blue LED 41, a green LED 42, a red LED 43, and a yellow LED 44, and may be a configuration having, for example, a blue LED, a green LED, a red LED, and a white LED. The white LED emits white light. The correlated color temperature of the white light emitted from the white LED is, for example, 2700K or more and 6000K or less. The white LED has, for example, a blue LED chip and a wavelength conversion unit including a wavelength conversion element that converts the wavelength of a part of the blue light emitted from the blue LED chip to emit light of a wavelength different from that of the blue light. The wavelength conversion element is a phosphor particle. The wavelength conversion unit includes, for example, a translucent material part and phosphor particles. In this case, the wavelength conversion unit is formed of a mixture of the translucent material part and phosphor particles. In the wavelength conversion unit, a large number of phosphor particles are present in the translucent material part. The material (translucent material) of the translucent material part is preferably a material with high transmittance for visible light. The light-transmitting material is, for example, a silicone-based resin. For example, yellow phosphor particles that emit yellow light can be used as the phosphor particles. The light (fluorescence) emitted from the yellow phosphor particles preferably has an emission spectrum with a main emission peak wavelength in a wavelength range of, for example, 530 nm to 580 nm. The yellow phosphor particles are, for example, Ce-activated Y3Al5O 12However, the present invention is not limited to this. In addition, the wavelength conversion unit is not limited to the case where it includes only yellow phosphor particles as the wavelength conversion element, and may include, for example, yellow phosphor particles, yellow-green phosphor particles, green phosphor particles, and red phosphor particles. In other words, the wavelength conversion unit may include multiple types of phosphor particles.

[0071] Also, the LED module 4 may have, for example, a first blue LED, a second blue LED, a first wavelength conversion unit, a second wavelength conversion unit, a first visible light LED, and a second visible light LED. The first blue LED emits a first blue light. The second blue LED emits a second blue light. The first wavelength conversion unit includes green phosphor particles that are excited by the first blue light to emit green light. The second wavelength conversion unit includes red phosphor particles that are excited by the second blue light to emit red light. The first visible light LED emits visible light (hereinafter also referred to as first visible light) of a color different from the first blue light, the second blue light, and the white light. The second visible light LED emits visible light (hereinafter also referred to as second visible light) of a color different from the first blue light, the second blue light, and the white 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 being different colors, and may be the same color. The LED module 4 is not limited to including both the first visible light LED and the second visible light LED, and may include at least one of them.

[0072] Also, the LED module 4 may have, for example, a first purple LED, a second purple LED, a third purple LED, a first wavelength conversion unit, a second wavelength conversion unit, a third wavelength conversion unit, and a visible light LED. The first purple LED emits the first purple light. The second purple LED emits the second purple light. The third purple LED emits the third purple light. The first wavelength conversion unit includes blue phosphor particles that are excited by the first purple light and emit blue light. The second wavelength conversion unit includes green phosphor particles that are excited by the second purple light and emit green light. The third wavelength conversion unit includes red phosphor particles that are excited by the third purple light and emit red light. The visible light LED emits visible light (for example, red light). The first purple light, the second purple light, and the third purple light may have the same peak wavelength or may be different from each other. The visible light emitted from the visible light LED is not limited to red light, and may be, for example, green light. The LED module 4 may not necessarily have a visible light LED.

[0073] Also, the LED module 4 may have, for example, a first blue LED, a second blue LED, a third blue LED, a first wavelength conversion unit, a second wavelength conversion unit, and a third wavelength conversion unit. The first blue LED emits a first blue light. The second blue LED emits a second blue light. The third blue LED emits a third blue light. The first wavelength conversion unit includes phosphor particles that are excited by the first blue light and emit light with a longer wavelength than the first blue light, and emits light of a first intermediate color ranging from blue to white. The second wavelength conversion unit includes phosphor particles that are excited by the second blue light and emit light with a longer wavelength than the second blue light, and emits light of a second intermediate color ranging from green to white. The third wavelength conversion unit includes phosphor particles that are excited by the third blue light and emit light with a longer wavelength than the third blue light, and emits light of a third intermediate color ranging from red to white. The first intermediate color, the second intermediate color, and the third intermediate color are different from each other. The first blue LED, the second blue LED, the third blue LED, the first wavelength-converting portion, the second wavelength-converting portion, and the third wavelength-converting portion are provided on a mounting substrate 40.

[0074] Also, the LED module 4 may have, for example, a first blue LED, a second blue LED, a third blue LED, a fourth blue LED, a first wavelength conversion unit, a second wavelength conversion unit, a third wavelength conversion unit, and a fourth wavelength conversion unit. The first blue LED emits a first blue light. The second blue LED emits a second blue light. The third blue LED emits a third blue light. The fourth blue LED emits a fourth blue light. The first wavelength conversion unit includes phosphor particles that are excited by the first blue light and emit light with a longer wavelength than the first blue light, and emits light of a first intermediate color ranging from blue to white. The second wavelength conversion unit includes phosphor particles that are excited by the second blue light and emit light with a longer wavelength than the second blue light, and emits light of a second intermediate color ranging from green to white. The third wavelength conversion section includes phosphor particles that are excited by the third blue light and emit light of a longer wavelength than the third blue light, and emits light of a third intermediate color ranging from red to white. The fourth wavelength conversion section includes phosphor particles that are excited by the fourth blue light and emit light of a longer wavelength than the fourth blue light, and emits light of a fourth intermediate color ranging from a color different from blue, green, and red to white. The first intermediate color, the second intermediate color, the third intermediate color, and the fourth intermediate color are different colors from each other. The first blue LED, the second blue LED, the third blue LED, the fourth blue LED, the first wavelength conversion section, the second wavelength conversion section, the third wavelength conversion section, and the fourth wavelength conversion section are provided on the mounting substrate 40.

[0075] Also, the LED module 4 may have, for example, a first blue LED, a second blue LED, a third blue LED, a first wavelength conversion unit, a second wavelength conversion unit, a third wavelength conversion unit, and a visible light LED. The first blue LED emits a first blue light. The second blue LED emits a second blue light. The third blue LED emits a third blue light. The first wavelength conversion unit includes phosphor particles that are excited by the first blue light and emit light with a longer wavelength than the first blue light, and emits light of a first intermediate color ranging from blue to white. The second wavelength conversion unit includes phosphor particles that are excited by the second blue light and emit light with a longer wavelength than the second blue light, and emits light of a second intermediate color ranging from green to white. The third wavelength conversion unit includes phosphor particles that are excited by the third blue light and emit light with a longer wavelength than the third blue light, and emits light of a third intermediate color ranging from red to white. The visible light LED emits visible light of a color different from the first blue light, the second blue light, the third blue light, the first intermediate color, the second intermediate color, the third intermediate color, and white. The first intermediate color, the second intermediate color, and the third intermediate color are different from each other. The first blue LED, the second blue LED, the third blue LED, the visible light LED, the first wavelength conversion unit, the second wavelength conversion unit, and the third wavelength conversion unit are provided on a mounting substrate.

[0076] Furthermore, each of the first light source module 13 and the second light source module 23 is not limited to the LED module 4, and may be, for example, an organic EL (Electro Luminescence) element.

[0077] In addition, the controller 7 may be connected to the multiple first lighting units 1 and the multiple second lighting units 2 via signal lines, and may be capable of transmitting control signals from the controller 7 to the multiple first lighting units 1 and the multiple second lighting units 2.

[0078] (Aspect) From the above-described embodiments 1 to 3, the present specification discloses the following aspects.

[0079] A lighting system (100; 100a; 100b) according to a first embodiment includes a plurality of functional units (10) and an attachment base (5). The attachment base (5) has a plurality of areas (51) in which the plurality of functional units (10) are arranged, and the plurality of functional units (10) are detachably attached. The plurality of functional units (10) include a first lighting unit (1) having a function of emitting a first illumination light (L1) with a first light distribution angle (θ1), and a second lighting unit (2) having a function of emitting a second illumination light (L2) with a second light distribution angle (θ2) larger than the first light distribution angle (θ1).

[0080] The lighting system (100; 100a; 100b) according to the first embodiment is easy to change the lighting environment, which makes it possible for the lighting system (100; 100a; 100b) according to the first embodiment to provide a more appropriate environment to a person (P10) in a target space (201) in a facility (200).

[0081] In the lighting system (100; 100a; 100b) according to the second embodiment, in the first embodiment, the first lighting unit (1) is a lighting unit for task lighting, and the second lighting unit (2) is a lighting unit for ambient lighting.

[0082] The lighting system (100; 100a; 100b) according to the second aspect makes it possible to realize task ambient lighting.

[0083] The lighting system (100; 100a; 100b) according to the third aspect is based on the first or second aspect. A plurality of areas (51) are arranged in an array on the mounting base (5).

[0084] In the lighting system (100; 100a; 100b) according to the fourth embodiment, the mounting base (5) in the third embodiment is in the form of a lattice frame having a plurality of openings that define a plurality of areas (51).

[0085] In a lighting system (100; 100a; 100b) according to a fifth aspect, in any one of the first to fourth aspects, the first lighting unit (1) has at least one of a dimming function and a color adjusting function.

[0086] The lighting system (100; 100a; 100b) according to the fifth aspect can achieve at least one of dimming and color adjustment of the first illumination light (L1), thereby enabling a greater variety of lighting scenes to be realized.

[0087] In the lighting system (100; 100a; 100b) according to the sixth aspect, in any one of the first to fifth aspects, the second lighting unit (2) has at least one of a dimming function and a color adjusting function.

[0088] The lighting system (100; 100a; 100b) according to the sixth aspect can achieve at least one of dimming and color adjustment of the second illumination light (L2), thereby enabling a greater variety of lighting scenes to be realized.

[0089] In a lighting system (100; 100a; 100b) according to a seventh aspect, in any one of the first to sixth aspects, each of the first lighting unit (1) and the second lighting unit (2) includes a mounting board (40), a blue LED (41), a green LED (42), a red LED (43), and a yellow LED (44). The blue LED (41) is mounted on the mounting board (40) and emits blue light. The green LED (42) is mounted on the mounting board (40) and emits green light. The red LED (43) is mounted on the mounting board (40) and emits red light. The yellow LED (44) is mounted on the mounting board (40) and emits yellow light.

[0090] In the lighting system (100; 100a; 100b) according to the seventh aspect, it is possible to control each of the first illumination light (L1) and the second illumination light (L2) to be a color illumination light different from white.

[0091] An illumination system (100; 100a; 100b) according to an eighth aspect is any one of the first to seventh aspects, in which the first illumination unit (1) is capable of varying at least one of a first light distribution angle (θ1) of the first illumination light (L1) and an irradiation direction of the first illumination light (L1).

[0092] The lighting system (100; 100a; 100b) according to the eighth aspect makes it possible to realize a wider variety of lighting scenes.

[0093] In a lighting system (100; 100a; 100b) according to a ninth aspect, in any one of the first to eighth aspects, the multiple functional units (10) include multiple first lighting units (1) and multiple second lighting units (2).

[0094] The lighting system (100; 100a; 100b) according to the ninth aspect can realize a wider variety of lighting scenes.

[0095] The lighting system (100; 100a; 100b) according to a tenth aspect is any one of the first to ninth aspects, further comprising a controller (7). The controller (7) controls the first lighting unit (1) and the second lighting unit (2).

[0096] The lighting system (100; 100a; 100b) according to the tenth aspect can realize a wider variety of lighting scenes.

[0097] In a lighting system (100; 100a; 100b) according to an eleventh aspect, in the tenth aspect, the first lighting unit (1) has a first communication section (11) capable of wireless communication with the controller (7), and the second lighting unit (2) has a second communication section (21) capable of wireless communication with the controller (7). The controller (7) has a communication section (71) capable of communicating with the first communication section (11) and the second communication section (21).

[0098] The lighting system (100; 100a; 100b) according to the eleventh aspect provides a high degree of freedom in terms of the arrangement of the controller (7).

[0099] In a lighting system (100; 100a; 100b) according to a twelfth aspect, in the eleventh aspect, a controller (7) controls at least one of the first lighting unit (1) and the second lighting unit (2) based on an output of a sensor (8) that detects a target object.

[0100] The lighting system (100; 100a; 100b) according to the twelfth aspect can provide a more appropriate environment to a person (P10) in a target space (201).

[0101] In a lighting system (100b) according to a thirteenth embodiment, the plurality of functional units (10) in the twelfth embodiment includes a sensor unit (3) having a sensor (8).

[0102] In a lighting system (100; 100a; 100b) according to a fourteenth aspect, in the twelfth or thirteenth aspect, the controller (7) controls the first lighting unit (1) and the second lighting unit (2) to present a predetermined signage.

[0103] The lighting system (100; 100a; 100b) according to the fourteenth aspect is capable of presenting a predetermined signage by using a plurality of functional units (10).

[0104] The configurations according to the second to fourteenth aspects are not essential for the lighting system (100; 100a; 100b) and may be omitted as appropriate.

[0105] A manufacturing method of a lighting system (100; 100a; 100b) according to a fifteenth aspect is a manufacturing method of a lighting system (100; 100a; 100b) including a plurality of functional units (10) and an attachment base (5). The attachment base (5) has a plurality of areas (51) in which the plurality of functional units (10) can be arranged in any combination, and the plurality of functional units (10) can be detachably attached. The plurality of functional units (10) include a first lighting unit (1) having a function of emitting a first illumination light (L1) with a first light distribution angle (θ1), and a second lighting unit (2) having a function of emitting a second illumination light (L2) with a second light distribution angle (θ2) larger than the first light distribution angle (θ1). A method for manufacturing a lighting system (100; 100a; 100b) includes a first step of preparing a plurality of functional units (10) and a mounting base (5), and a second step of mounting the plurality of functional units (10) to the mounting base (5).

[0106] The manufacturing method of the lighting system (100; 100a; 100b) according to the fifteenth aspect makes it easy to change the lighting environment. As a result, the manufacturing method of the lighting system (100; 100a; 100b) according to the fifteenth aspect makes it possible to provide a more appropriate environment for a person (P10) in a target space (201) in a facility (200). [Explanation of symbols]

[0107] 1 First lighting unit 11 First Communications Department 2. Second lighting unit 21 Second Communications Department 3 Sensor unit 5 Mounting base 51 Area 6 Retaining member 7 Controller 71 Communications Department 8 Sensors 10 Functional Units 100, 100a, 100b Lighting Systems 40 Mounting Board 41 Blue LED 42 Green LED 43 Red LED 44 Yellow LED 200 facilities 201 Target Space L1 1st illumination light L2 2nd illumination light θ1 First light distribution angle θ2 Second light distribution angle P10 people

Claims

1. A plurality of functional units; a mounting base having a plurality of areas in which the plurality of functional units are arranged, and to which the plurality of functional units are detachably attached; The plurality of functional units include: a first lighting unit having a function of emitting a first illumination light having a first light distribution angle; a second lighting unit having a function of emitting second illumination light having a second light distribution angle larger than the first light distribution angle, the first lighting unit is a lighting unit for task lighting, The second lighting unit is a lighting unit for ambient lighting. Lighting system.

2. A plurality of functional units; a mounting base having a plurality of areas in which the plurality of functional units are arranged, and to which the plurality of functional units are detachably attached; The plurality of functional units include: a first lighting unit having a function of emitting a first illumination light having a first light distribution angle; a second lighting unit having a function of emitting second illumination light having a second light distribution angle larger than the first light distribution angle, The plurality of areas are arranged in an array on the mounting base, The mounting base is a lattice frame having a plurality of openings that define the plurality of areas. Lighting system.

3. A plurality of functional units; a mounting base having a plurality of areas in which the plurality of functional units are arranged, and to which the plurality of functional units are detachably attached; The plurality of functional units include: a first lighting unit having a function of emitting a first illumination light having a first light distribution angle; a second lighting unit having a function of emitting second illumination light having a second light distribution angle larger than the first light distribution angle, The first lighting unit is capable of varying at least one of the first light distribution angle of the first illumination light and an irradiation direction of the first illumination light. Lighting system.

4. A plurality of functional units; a mounting base having a plurality of areas in which the plurality of functional units are arranged, and to which the plurality of functional units are detachably attached; The plurality of functional units include: a first lighting unit having a function of emitting a first illumination light having a first light distribution angle; a second lighting unit having a function of emitting second illumination light having a second light distribution angle larger than the first light distribution angle, A controller that controls the first lighting unit and the second lighting unit, the first lighting unit has a first communication unit capable of wirelessly communicating with the controller, the second lighting unit has a second communication unit capable of wirelessly communicating with the controller, the controller has a communication unit capable of communicating with the first communication unit and the second communication unit, The controller controls at least one of the first lighting unit and the second lighting unit based on an output of a sensor that detects a target object. Lighting system.

5. The plurality of functional units includes a sensor unit having the sensor, 5. A lighting system according to claim 4.

6. The controller controls the first lighting unit and the second lighting unit to present a predetermined signage.

6. A lighting system according to claim 4 or 5.

7. The first lighting unit is a lighting unit for task lighting, The second lighting unit is a lighting unit for ambient lighting.

6. A lighting system according to claim 2.

8. The first lighting unit has at least one of a dimming function and a color adjustment function.

6. A lighting system according to any one of the preceding claims.

9. The second lighting unit has at least one of a dimming function and a color adjustment function.

6. A lighting system according to any one of the preceding claims.

10. Each of the first lighting unit and the second lighting unit is A mounting board; a blue LED mounted on the mounting substrate and emitting blue light; a green LED mounted on the mounting substrate and emitting green light; a red LED mounted on the mounting board and emitting red light; A yellow LED mounted on the mounting substrate and emitting yellow light.

6. A lighting system according to any one of the preceding claims.

11. The plurality of functional units include: The lighting device includes a plurality of the first lighting units and a plurality of the second lighting units; 6. A lighting system according to any one of the preceding claims.

12. Further comprising a controller for controlling the first lighting unit and the second lighting unit.

4. A lighting system according to claim 1.

13. The first lighting unit has a first communication unit capable of wireless communication with the controller, the second lighting unit has a second communication unit capable of wirelessly communicating with the controller, The controller has a communication unit capable of communicating with the first communication unit and the second communication unit.

13. The lighting system of claim 12.

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