JP7182224B2 - Lighting device and lighting system - Google Patents

Description

The present invention relates to lighting devices and lighting systems, and more particularly to lighting devices having light-emitting elements such as light emitting diodes (LEDs) and lighting systems equipped with the lighting devices.

A lighting device capable of emitting light in all directions of 360° has been proposed. As an illumination device of this type, for example, Patent Document 1 discloses an LED light source device having a configuration in which LED chips are arranged on each of a plurality of surfaces forming a polyhedron.

JP 2013-143397 A

2. Description of the Related Art In a lighting device capable of emitting light in all directions of 360°, a plurality of light emitting elements are arranged over the entire lighting device. For example, it is conceivable to dispose a light source section having a light emitting element on each of a plurality of surfaces forming a polyhedron. In such a lighting device, it is conceivable to dispose a control section in the interior space of the lighting device in order to control the plurality of light source sections.

However, in such a configuration, the control unit is surrounded by a plurality of light source units (light emitting elements) serving as heat sources, so heat is trapped in the internal space where the control unit is arranged. As a result, there is a possibility that problems such as malfunction or failure of the control unit due to heat may occur.

SUMMARY OF THE INVENTION The present invention has been made in order to solve such problems. It is an object to provide a lighting device and a lighting system that can be suppressed.

In order to achieve the above object, one aspect of the lighting device according to the present invention is a housing having a substantially spherical or polyhedral outer shape, and a lighting device disposed on the outer surface side of the housing and facing outward from the lighting device. a plurality of light source units having light emitting elements that emit light; and a control unit that controls the plurality of light source units. and a first outflow hole for causing the gas to flow out from the internal space. A first light source section provided with a second inflow hole existing at a position corresponding to the inflow hole of the second light source part provided with a second outflow hole existing at a position corresponding to the first outflow hole and a light source.

Further, one aspect of a lighting system according to the present invention includes the lighting device described above and a control terminal that controls the lighting device.

It is possible to suppress the occurrence of troubles in the control unit, such as malfunction or failure of the control unit that controls the plurality of light sources due to heat.

Drawing 1 is a figure showing an example of an outline of a lighting system concerning an embodiment. FIG. 2 is a block diagram showing the configuration of the lighting system according to the embodiment. FIG. 3 is an external view of the lighting device according to the embodiment. 4 is a diagram showing a state in which a part of the exterior is removed in the lighting device shown in FIG. 3. FIG. 5 is a diagram showing a state in which the exterior and the light source section are removed in the lighting device shown in FIG. 3. FIG. 6 is a diagram showing a state in which the exterior, the light source section, and the support are removed in the lighting device shown in FIG. 3. FIG. 7 is a diagram showing a state in which the exterior, the light source section, the support and the housing are removed in the lighting device shown in FIG. 3. FIG. FIG. 8 is a diagram schematically showing a cross section of the lighting device according to the embodiment. FIG. 9 is a diagram schematically showing a cross section of a lighting device according to Modification 1. As shown in FIG. 10 is an external view of a lighting device according to Modification 2. FIG.

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below. It should be noted that each of the embodiments described below is a specific example of the present invention. Therefore, numerical values, components, arrangement positions and connection forms of components, steps and the order of steps, etc. shown in the following embodiments are examples and are not intended to limit the present invention. Therefore, among the constituent elements in the following embodiments, constituent elements that are not described in independent claims representing the highest level concept of the present invention will be described as optional constituent elements.

Each figure is a schematic diagram and is not necessarily strictly illustrated. In addition, in each figure, the same code|symbol is attached|subjected to the substantially same structure, and the overlapping description is abbreviate|omitted or simplified.

(Embodiment)
[Lighting system]
First, an example of the outline of the lighting system 3 according to the embodiment will be described with reference to FIG. FIG. 1 is a diagram showing an example of an overview of a lighting system 3 according to an embodiment.

As shown in FIG. 1 , the lighting system 3 is composed of a lighting device 1 and a control terminal 2 .

The lighting device 1 is installed, for example, on the ceiling of a room in a building. The lighting device 1 is a lighting fixture capable of irradiating light in all directions of 360 degrees, and has a plurality of light emitting elements 11 . A plurality of light emitting elements 11 are arranged over the entire illumination device 1 . The outer shape of the illumination device 1 is, for example, substantially spherical or polyhedral.

The illumination device 1 can irradiate light in an arbitrary direction centering on the illumination device 1 by selectively causing the plurality of light emitting elements 11 to emit light. That is, the lighting direction (writing direction) of the light emitted from the lighting device 1 is arbitrary. For example, the illumination device 1 emits light in all directions of 360° by causing all the light emitting elements 11 to emit light at the same time, or causes some of the plurality of light emitting elements 11 to emit light. It is possible to irradiate light only in the direction of the part. In other words, the illumination device 1 can function not only as a 360° omnidirectional light, but also as a spotlight.

In FIG. 1, the illumination device 1 functions as a spotlight, and the plurality of light-emitting elements 11 are selectively caused to emit light so that only the wall surface is irradiated with light. In this case, in FIG. 1, the plurality of light emitting elements 11 are selectively caused to emit light so that the shape of the irradiation area on the wall surface becomes rectangular, but the present invention is not limited to this. For example, the shape of the irradiation area of the lighting device 1 on the wall surface may be substantially circular, substantially elliptical, or the like.

The lighting device 1 also has a dimming control function and a toning control function. Specifically, the lighting device 1 can change the light color such as brightness and color temperature or color of the light emitted by the lighting device 1 . In the present embodiment, the illumination device 1 can change the brightness and color of light for each of the plurality of light emitting elements 11 .

The control terminal 2 is a device that controls the lighting device 1 . For example, the control terminal 2 is a mobile terminal such as a smartphone or a tablet terminal operated by a user. Note that the control terminal 2 is not limited to a mobile terminal, and may be a stationary terminal such as a desktop personal computer. Further, the control terminal 2 may be a terminal capable of operating equipment other than the lighting device 1 or may be a terminal such as a dedicated remote control for operating only the lighting device 1 .

In the lighting system 3 configured as described above, the user operates the control terminal 2 to control the lighting mode of the light emitted from the lighting device 1, such as on/off, lighting direction, brightness, or light color. can be done. Specifically, by operating the control terminal 2, the user can control the light emission mode such as lighting/lighting, brightness, or light color for each of the plurality of light emitting elements 11. FIG. Thereby, the lighting mode of the lighting device 1 can be changed. The light emission mode of each light emitting element 11 is not limited to these, and may include a light emission pattern such as blinking.

For example, when controlling the lighting direction of light emitted from the lighting device 1 , the user operates the control terminal 2 to specify the irradiation direction of the light from the lighting device 1 . Thereby, the control terminal 2 transmits information including the designated irradiation direction to the lighting device 1 . The illumination device 1 selects one or more light emitting elements 11 capable of illuminating in a designated irradiation direction from all the light emitting elements 11, and causes these light emitting elements 11 to emit light.

In addition, the illumination device 1 according to the present embodiment can irradiate the surrounding space such as the wall surface with light in full color evenly. For this reason, as each light emitting element 11, a three-color light source of RGB is used as will be described later. In addition, the plurality of light emitting elements 11 are evenly distributed at a high density. As a result, the space in which the lighting device 1 is installed can be produced by controlling the light emitted by the lighting device 1 .

Next, specific functional configurations of the lighting device 1 and the control terminal 2 in the lighting system 3 according to the embodiment will be described with reference to FIG. FIG. 2 is a block diagram showing the functional configuration of the lighting system 3 according to Embodiment 1. As shown in FIG.

First, the configuration of lighting device 1 in the present embodiment will be described. As shown in FIG. 2 , the illumination device 1 has a plurality of light source units 10 , a control unit 20 , a fan 30 , a communication unit 40 , a storage unit 50 and a power source 60 .

Each of the plurality of light source units 10 has at least one light emitting element 11 . That is, the lighting device 1 has a plurality of light emitting elements 11 . In this embodiment, each light source section 10 has a plurality of light emitting elements 11 . The plurality of light-emitting elements 11 emit light in a predetermined light-emitting mode according to a lighting control signal (light-emitting instruction) from the control section 20 . Although details will be described later, each light emitting element 11 is an LED light source configured by an LED. In addition, LED numbers are assigned as serial numbers to the plurality of light emitting elements 11 in order to distinguish each light emitting element 11 .

The control unit 20 is a control circuit that controls each unit of the lighting device 1 . The control unit 20 performs various controls, for example, by the processor executing a program held in the storage unit 50 . The processor is composed of an MPU (Micro Processing Unit), a CPU (Central Processing Unit), a DSP (Digital Signal Processor), a GPU (Graphical Processing Unit), or an SOC (System on a chip).

In this embodiment, the control unit 20 includes a light source control unit that controls the plurality of light source units 10 . Specifically, the control unit 20 controls the light emission mode of the light emitting element 11 included in each light source unit 10 . In this embodiment, the control unit 20 can individually control the light emission modes of all the light emitting elements 11 included in the lighting device 1 . Specifically, the control unit 20 individually controls the light emission mode of each light emitting element 11 according to the lighting control signal received by the communication unit 40 from the control terminal 2 . For example, the control unit 20 controls turning on/off (turning on, turning off) the light emitted from all the light emitting elements 11, changes the brightness, and changes the light color.

The fan 30 is a blower fan that air-cools the interior of the lighting device 1 . Although the details will be described later, the lighting device 1 is provided with a plurality of ventilation holes, and by driving the fan 30, the outside air is taken into the inside from one of the plurality of ventilation holes and the other ventilation holes are provided. Hot air is exhausted from the stomata. The fan 30 may be configured to automatically turn on/off in conjunction with lighting and extinguishing of the light emitting element 11, or may be configured to be controlled to be turned on/off by operating the control terminal 2. Alternatively, it may be configured to have both functions.

The communication unit 40 has a function of communicating with the control terminal 2 . Specifically, the communication unit 40 receives from the control terminal 2 a lighting control signal for controlling the lighting mode of the lighting device 1 . A lighting control signal received by the communication unit 40 is output to the control unit 20 . The communication method by the communication unit 40 is, for example, WAN (Wide Area Network), LAN (Local Area Network), power line communication, infrared communication, short-range wireless communication (for example, Bluetooth (registered trademark) communication), or mobile phone It is a communication method such as mobile communication.

Storage unit 50 can be used as a working memory for control unit 20 . The storage unit 50 includes, for example, primary storage devices such as RAM (Random Access Memory) and ROM (Read Only Memory). The storage unit 50 may also include secondary storage devices such as HDDs (Hard Disk Drives) and SSDs (Solid State Drives) and/or tertiary storage devices such as optical discs and SD cards. Note that the storage unit 50 may include other storage devices. The storage unit 50 stores various data, information, programs, and the like.

The power supply 60 has a function of supplying power to each part of the lighting device 1 . The power supply 60 is, for example, a power supply circuit in which a plurality of electronic components are mounted on a printed circuit board. The power source 60 generates, for example, drive power for causing each of the plurality of light source units 10 to emit light. Specifically, the power supply 60 generates drive power for causing the light emitting elements 11 to emit light, and supplies this drive power to each light emitting element 11 . For example, when the lighting device 1 is connected to a commercial AC power supply by a plug or the like, the power supply 60 converts the AC power into drive power. As an example, the power supply 60 converts commercial AC power into DC power, and supplies this DC power to each light emitting element 11 as drive power for causing the light emitting element 11 to emit light. Thereby, the light emitting element 11 emits light. Power supply 60 also generates drive power for driving fan 30 .

Next, the configuration of the control terminal 2 according to this embodiment will be described. As shown in FIG. 2 , the control terminal 2 has a control section 110 , a user interface (UI) 120 , a communication section 130 and a storage section 140 .

The control unit 110 controls each unit of the control terminal 2 . The control unit 110 performs various controls, for example, by the processor executing a program held in the storage unit 140 . The processor is configured by, for example, an MPU, CPU, DSP, GPU, SOC, or the like, like the control unit 20 of the lighting device 1 .

In the present embodiment, control unit 110 generates a lighting control signal to be transmitted to lighting device 1 based on a user's instruction accepted by user interface 120 . In this case, the control unit 110 generates, as the lighting control signal, a signal including lighting information regarding the lighting direction, brightness, light color, lighting pattern, lighting time, and the like of the light emitted by the lighting device 1 . The generated lighting control signal is output to communication unit 130 .

The user interface 120 is input means for inputting the lighting mode of the lighting device 1 according to the user's operation. Specifically, the user interface 120 receives lighting information regarding the lighting direction, the brightness of the lighting light, the light color of the lighting light, the lighting pattern, the lighting time, etc. specified by the user as the lighting mode of the lighting device 1 . The user interface 120 is configured by, for example, a touch panel having functions as an operation unit and a display unit. The touch panel displays a GUI (Graphical User Interface) screen suitable for touch operations by the user. Note that the user interface is not limited to a touch panel, and may have a display unit and an operation unit separately. In this case, the display unit is a display device such as a liquid crystal display device or an organic EL device, and the operation unit is an input device such as a mouse, keyboard, touch pad, touch panel or microphone.

The communication unit 130 has a function of communicating with the lighting device 1 . Specifically, the communication unit 130 receives a lighting control signal from the control unit 110 and transmits the lighting control signal to the lighting device 1 . As with the communication unit 40 of the lighting device 1, the communication method of the communication unit 130 is, for example, WAN, LAN, power line communication, infrared communication, short-range wireless communication (for example, Bluetooth (registered trademark) communication), or mobile phone communication. mobile communication, etc.

Storage unit 140 can be used as a working memory for control unit 110 . The storage unit 140 includes, for example, primary storage devices such as RAM and ROM. The storage unit 140 may also include a secondary storage device such as an HDD or SSD and/or a tertiary storage device such as an optical disc or an SD card. Note that the storage unit 140 may include other storage devices. The storage unit 140 stores various data, information, programs, and the like. Further, the lighting mode of the lighting device 1 or the light emitting mode of the light emitting element 11 may be registered in advance in the storage unit 140 .

[Structure of lighting device]
Next, a specific structure of the lighting device 1 according to the embodiment will be described with reference to FIGS. 3 to 8. FIG. FIG. 3 is an external view of lighting device 1 according to the embodiment. 4 to 7 are diagrams showing the internal configuration of the illumination device 1. FIG. FIG. 8 is a diagram schematically showing a cross section of the lighting device 1. As shown in FIG. 4 shows a state in which a part of the exterior 73 is removed from the lighting device 1 shown in FIG. 3, and FIG. 6 shows the lighting device 1 shown in FIG. 3 with the exterior 73, the light source unit 10 and the support 72 removed, and FIG. 7 shows the lighting device 1 shown in FIG. 3 shows a state in which the exterior 73, the light source section 10, the support 72 and the housing 71 are removed.

As shown in FIGS. 3 to 8, the illumination device 1 includes a light source section 10, a control section 20, a fan 30, a structure 70, and a wiring tube .

The structure 70 is composed of a housing 71 that is a first structure, a support 72 that is a second structure, and an exterior 73 that is a third structure. The housing 71 , the support 72 and the exterior 73 are arranged in this order from the inside to the outside of the lighting device 1 . The support 72 is configured to cover the entire housing 71 , and the exterior 73 is configured to cover the entire support 72 . In the present embodiment, the housing 71 is the innermost housing of the lighting device 1 , and the exterior 73 is the outermost housing of the lighting device 1 .

The wiring tube 80 is a cylindrical member through which an electric wire for supplying power from an external power source to the power source 60 is inserted. In the present embodiment, wiring pipe 80 is provided at the top of exterior 73 and also functions as a mounting member for mounting lighting device 1 on the ceiling. Specifically, as shown in FIG. 1, the lighting device 1 is installed in a state of being suspended from the ceiling by wiring pipes 80 . As an example, the wiring pipe 80 is a metal pipe, but is not limited to this. A wire or the like for fixing the lighting device 1 to the ceiling may be arranged in the wiring tube 80 .

Note that the communication unit 40, the storage unit 50, and the power supply 60 are arranged in the structure 70, although not shown. For example, the communication unit 40 , the storage unit 50 and the power supply 60 are arranged in the internal space 71 a of the housing 71 .

As shown in FIG. 6, the housing 71 has a substantially spherical or polyhedral outer shape. In the present embodiment, housing 71 has a polyhedral shape. In other words, the outer surface of the housing 71 is composed of a plurality of surfaces. Specifically, the housing 71 has an external shape of a tridodecahedron with 60 vertices. That is, the outer surface of the housing 71 is composed of 20 regular hexagonal planes and 12 regular pentagonal planes.

As shown in FIG. 8, the housing 71 is provided with an internal space 71a. That is, the inside of the housing 71 is hollow. A control unit 20 is arranged in the internal space 71a. That is, the internal space 71a is a controller installation space for installing the controller 20 . In this embodiment, the fan 30 is also arranged in the internal space 71a.

As shown in FIGS. 6 and 8, the housing 71 is provided with a first inflow hole 91a and a first outflow hole 91b. The first inflow hole 91a is a vent hole for allowing the gas outside the lighting device 1 to flow into the internal space 71a. Also, the first outflow hole 91b is a vent hole for causing the gas to flow out from the internal space 71a.

Each of the first inflow hole 91a and the first outflow hole 91b is a through hole having a circular opening, for example. In addition, the opening shape of the first inflow hole 91a and the first outflow hole 91b is not limited to circular, and may be polygonal or the like. Moreover, although the opening areas of the first inflow hole 91a and the first outflow hole 91b are the same as each other, they may be different.

In the present embodiment, a plurality of first inflow holes 91a and a plurality of first outflow holes 91b are provided. The number of first inflow holes 91a and the number of first outflow holes 91b may be the same or different.

Further, as shown in FIG. 6, the first inflow hole 91a and the first outflow hole 91b are provided on the plane of the regular hexagon, and the plane of the regular pentagon is provided with the first inflow hole 91a and the first No outflow hole 91b is provided. Specifically, the regular hexagonal surface is provided with only one through hole at the center of the surface as the first inflow hole 91a or the first outflow hole 91b. In addition, although the first inflow holes 91a or the first outflow holes 91b may be provided in all of the twenty regular hexagons, the first inflow holes may be provided in some faces of the twenty regular hexagons. 91a or a first outflow hole 91b may be provided.

Further, the housing 71 is provided with a plurality of bar-shaped protrusions 100 . A plurality of protrusions 100 are provided on each of the plurality of surfaces of the housing 71 . Specifically, the regular pentagonal face is provided with protrusions 100 near each of the five vertices, and the regular hexagonal face is provided with protrusions 100 near the middle of every other three sides out of the six sides. are provided with projections 100 respectively. Therefore, the housing 71 is provided with 120 protrusions 100 over the entire housing 71 . A housing 71 provided with a plurality of protrusions 100 has a shape that resembles a sea urchin.

The housing 71 is made of, for example, a resin material, but is not limited to this. Moreover, in the present embodiment, the plurality of protrusions 100 and the housing 71 are configured integrally. For example, the plurality of protrusions 100 and the housing 71 are a resin molded product integrally made of a resin material.

As shown in FIG. 5, a support 72 is placed on the protrusion 100 . In this embodiment, a plurality of supports 72 are arranged. Specifically, the support 72 is arranged corresponding to each of a plurality of surfaces forming the polyhedral outer surface of the housing 71 . More specifically, the support 72 has a frame-shaped frame along the sides of the polygons forming the polyhedral outer surface of the housing 71 . Therefore, the support 72 is composed of a first member having a hexagonal frame-like frame and a second member having a pentagonal frame-like frame. In addition, although the plurality of supports 72 are separated in the present embodiment, they may be connected.

As shown in FIG. 4 , a plurality of light source units 10 are arranged on the outer surface side of the housing 71 . That is, the plurality of light source units 10 are arranged above each surface of the polyhedron forming the housing 71 . In the present embodiment, the plurality of light source units 10 are laid out so as to cover the entire outer surface of the housing 71 . Therefore, a polyhedron having a shape similar to that of the housing 71 is formed by the plurality of light source units 10 that are spread out.

Moreover, as shown in FIG. 8 , the plurality of light source units 10 are arranged inside the exterior 73 . Therefore, the plurality of light source units 10 are arranged between the housing 71 and the exterior 73 . Specifically, each light source unit 10 is arranged between a support 72 arranged outside the housing 71 and an exterior 73 .

In this embodiment, the housing 71 and the plurality of light source units 10 are arranged at regular intervals. Specifically, the housing 71 is provided with projections 100 , and the plurality of light source units 10 are arranged on the projections 100 . As a result, as shown in FIG. 8, the plurality of light source units 10 and the outer surface of the housing 71 can be arranged at regular intervals, and the space between each light source unit 10 and the outer surface of the housing 71 is , a gap G is formed as an air layer.

Specifically, each of the plurality of light source units 10 is arranged on the support 72 . That is, the support 72 supports the light source section 10 . The support 72 also functions as a spacer between the housing 71 and the light source section 10 . The plurality of light source units 10 and the plurality of supports 72 are in one-to-one correspondence.

The plurality of light source units 10 are arranged so as to cover the entire housing 71 . Specifically, the plurality of light source units 10 are arranged corresponding to each of the plurality of surfaces forming the outer surface of the polyhedron of the housing 71 in the same manner as the support 72 . Therefore, 32 light source units 10 are arranged in this embodiment.

Each of the plurality of light source units 10 has a light emitting element 11 and a substrate 12 . Therefore, lighting device 1 has a plurality of light emitting elements 11 and a plurality of substrates 12 .

A plurality of light emitting elements 11 are arranged over the entire illumination device 1 . That is, the plurality of light emitting elements 11 are scattered so as to cover the entire outer surface of the housing 71 . Each of the plurality of light emitting elements 11 emits light outward from lighting device 1 . Specifically, the optical axis of each light-emitting element 11 is perpendicular to the surface forming the outer surface of the polyhedron of the housing 71 and the outer surface of the exterior 73 . Therefore, the direction of light emitted from each light emitting element 11 is perpendicular to the outer surface of the exterior 73 .

Each light emitting element 11 can emit light of two or more colors. In this embodiment, each light emitting element 11 emits light of three or more colors. Specifically, each light-emitting element 11 is a three-color light source of RGB, and can emit three monochromatic lights of red, blue, and green, and adjust these three monochromatic lights. It can emit colored light or white light obtained by lighting.

Specifically, each light-emitting element 11 is a surface-mounted (SMD: Surface Mount Device) type LED element in which an LED is packaged, and includes a container (package) and a plurality of LED chips mounted in the container. and a sealing member for sealing the plurality of LED chips. In this embodiment, as the plurality of LED chips, a red LED chip that emits red light, a blue LED chip that emits blue light, and a green LED chip that emits green light are mounted. The sealing member is a translucent insulating resin material such as silicone resin. A light diffusing material such as silica, a filler, and the like may be dispersed in the sealing member.

Moreover, unlike a display that displays an image, lighting device 1 in the present embodiment needs to illuminate a surrounding space such as a wall surface, so light emitting element 11 requires high light output. Therefore, the brightness of each light emitting element 11 is higher than that of the LED light source used in the backlight of the liquid crystal display.

The light emitting element 11 configured in this way is mounted on the substrate 12 . In this embodiment, a plurality of light emitting elements 11 are mounted on one substrate 12 . The substrate 12 is a mounting substrate having a mounting surface for mounting the light emitting element 11 thereon. Although not shown, the mounting surface of the substrate 12 is provided with metal wiring, a connector for power supply, and the like.

As the substrate 12, for example, a metal base substrate obtained by applying an insulating coating to a base material made of a metal material such as aluminum or copper, a ceramic substrate that is a sintered body of a ceramic material such as alumina, or a resin material. A base resin substrate or the like is used. In this embodiment, as the substrate 12, a printed wiring board made of a glass epoxy substrate on which metal wiring is formed is used. Although the substrate 12 is a rigid substrate, it may be a flexible substrate.

Further, as shown in FIG. 4 , the substrate 12 has a shape corresponding to the polygonal surfaces forming the polyhedral outer surface of the housing 71 . In the present embodiment, a printed wiring board having a regular hexagonal shape in plan view and a printed wiring board having a regular pentagonal shape in plan view are used as the substrate 12 . By combining the 20 regular hexagonal substrates 12 and the 12 pentagonal substrates 12, a 32-sided polyhedron is formed like the housing 71. FIG.

The plurality of light-emitting elements 11 are evenly distributed with high density throughout the lighting device 1 . Therefore, it is preferable that at least two or more light emitting elements 11 are mounted on the substrate 12 corresponding to each face of the polyhedron.

In the present embodiment, in the regular hexagonal substrate 12, the light emitting elements 11 (six in total) are mounted on each of the corners of the regular hexagon. Light emitting elements 11 (five in total) are mounted in the central portion. Therefore, 180 (=20×6+12×5) light-emitting elements 11 are used in the illumination device 1 .

Moreover, not only are the intervals between the plurality of light emitting elements 11 mounted on one substrate 12 uniform, but also for two adjacent substrates 12, the light emitting elements 11 on one substrate 12 and the light emitting elements 11 on the other substrate 12 are arranged. should be evenly spaced. Furthermore, it is preferable that the densities of the light emitting elements 11 located near the equator of the illumination device 1 and the light emitting elements 11 located at high latitudes are well balanced.

It is to be noted that the arrangement of the hexagonal substrate 12 and the pentagonal substrate 12 can be easily recognized by making the surface colors of the hexagonal substrate 12 and the pentagonal substrate 12 different. In this embodiment, the surface of the hexagonal substrate 12 is colored red, and the surface of the pentagonal substrate 12 is colored blue.

Each substrate 12 is fixed to the housing 71 . As shown in FIGS. 4 and 8 , each substrate 12 is fixed to the housing 71 by being attached to projections 100 provided on the housing 71 . Specifically, as shown in FIG. 6, each protrusion 100 is provided with a screw hole, and as shown in FIG. 5, each support 72 is provided with a through hole through which a screw is inserted. ing. Each substrate 12 is also provided with a through-hole through which a screw is inserted. As shown in FIG. By screwing, the substrate 12 and the support 72 can be screwed to the projection 100 .

As shown in FIGS. 4 and 8, the plurality of light source units 10 includes a first light source unit 10X provided with a second inflow hole 92a and a second light source unit 10Y provided with a second outflow hole 92b. and a third light source section 10Z in which the second inflow hole 92a and the second outflow hole 92b are not provided. The illumination device 1 includes a plurality of first light source units 10X, a plurality of second light source units 10Y, and a plurality of third light source units 10Z.

As shown in FIG. 4, each first light source section 10X has a first substrate 12X, a first light emitting element 11X arranged on the first substrate 12X, and a second inflow hole. 92a is provided on the first substrate 12X. Specifically, in each first substrate 12X, one second inflow hole 92a is provided in the central portion of the first substrate 12X, and the plurality of first light emitting elements 11X They are arranged so as to surround the inflow hole 92a.

Further, each second light source unit 10Y has a second substrate 12Y and a second light emitting element 11Y arranged on the second substrate 12Y, and the second outflow hole 92b is a second substrate 12Y. is provided on the substrate 12Y. Specifically, in each second substrate 12Y, one second outflow hole 92b is provided in the central portion of the second substrate 12Y, and the plurality of second light emitting elements 11Y They are arranged so as to surround the outflow hole 92b.

The first substrate 12X in the first light source section 10X and the second substrate 12Y in the second light source section 10Y are hexagonal substrates 12. As shown in FIG. That is, the second inflow hole 92 a and the second outflow hole 92 b are provided in the regular hexagonal substrate 12 .

Also, the third light source section 10Z has a third substrate 12Z and a third light emitting element 11Z arranged on the third substrate 12Z. The third substrate 12Z is not provided with the second inflow hole 92a and the second outflow hole 92b.

A third substrate 12Z of the third light source section 10Z is a regular pentagonal substrate 12 . That is, the regular pentagonal substrate 12 is provided with neither the second inflow hole 92a nor the second outflow hole 92b. However, an insertion hole into which the protrusion provided on the support 72 is inserted is provided in the center of the regular pentagonal third substrate 12Z. By thus providing the protrusions of the support 72 in the insertion holes of the third substrate 12Z, positioning of the third substrate 12Z is facilitated. The opening diameter of the insertion hole provided in the third substrate 12Z is larger than that of the second inlet hole 92a provided in the first substrate 12X and the second outlet hole 92b provided in the second substrate 12Y. is small.

The second inflow hole 92a provided in the first substrate 12X, like the first inflow hole 91a provided in the housing 71, allows the gas outside the lighting device 1 to flow into the internal space 71a of the housing 71. It is a ventilation hole for inflow.

In addition, the second outflow hole 92b provided in the second light source unit 10Y, like the first outflow hole 91b provided in the housing 71, is for causing the gas to flow out from the internal space 71a of the housing 71. air vents.

Each of the second inflow hole 92 a and the second outflow hole 92 b is, for example, a through hole having a circular opening, and is formed in the central portion of each substrate 12 . In addition, the opening shape of the second inflow hole 92a and the second outflow hole 92b is not limited to circular, and may be polygonal or the like. Also, the opening areas of the second inflow hole 92a and the second outflow hole 92b are the same, but may be different.

As described above, the central portion of the substrate 12 of the light source section 10 is provided with a vent hole having a relatively large opening diameter as the second inflow hole 92a or the second outflow hole 92b. This is because, unlike a display that displays an image, lighting device 1 in the present embodiment does not need to display high-definition information. This is because the density of the light-emitting elements 11 at .

As shown in FIG. 8, the second inflow hole 92a provided in the first light source section 10X exists at a position corresponding to the first inflow hole 91a provided in the housing 71. As shown in FIG. When viewed from the penetrating direction of the second inflow hole 92a, the first inflow hole 91a and the second inflow hole 92a at least partially overlap. In the present embodiment, the opening diameter of the first inflow hole 91a is larger than the opening diameter of the second inflow hole 92a. The inflow hole 92a is positioned to fit inside the first inflow hole 91a. In addition, in the present embodiment, the opening diameter of the first inflow hole 91a located inside is larger than the opening diameter of the second inflow hole 92a located outside, but the present invention is not limited to this. , the opening diameter of the second inflow hole 92a located outside may be larger than the opening diameter of the first inflow hole 91a located inside, or the opening diameter of the first inflow hole 91a and the opening diameter of the second inflow hole 92a may be the same.

Also, the second outflow hole 92b provided in the second light source unit 10Y is present at a position corresponding to the first outflow hole 91b provided in the housing 71. As shown in FIG. At least a part of the first outflow hole 91b and the second outflow hole 92b overlap when viewed from the penetrating direction of the second outflow hole 92b. In this embodiment, the opening diameter of the first outflow hole 91b is larger than the opening diameter of the second outflow hole 92b. The outflow hole 92b is located inside the first outflow hole 91b. In addition, in the present embodiment, the opening diameter of the first outflow hole 91b located inside is larger than the opening diameter of the second outflow hole 92b located outside, but the present invention is not limited to this. , the opening diameter of the second outflow hole 92b located outside may be larger than the opening diameter of the first outflow hole 91b located inside, or the opening diameter of the first outflow hole 91b and the second outflow hole 91b The opening diameter of the outflow hole 92b may be the same.

The number of the first substrates 12X provided with the second inflow holes 92a is plural. Moreover, the number of the second substrates 12Y provided with the second outflow holes 92b is plural. Therefore, a plurality of second inflow holes 92a and a plurality of second outflow holes 92b are provided. The number of the second inflow holes 92a and the number of the second outflow holes 92b may be the same or may be different.

In the present embodiment, the number of second inflow holes 92a provided in the first light source unit 10X is the same as the number of first inflow holes 91a provided in the housing 71, but the second The number of inflow holes 92a may differ from the number of first inflow holes 91a.

Similarly, the number of the second outflow holes 92b provided in the second light source unit 10Y is the same as the number of the first outflow holes 91b provided in the housing 71, but the number of the second outflow holes 92b may be different from the number of the first outflow holes 91b.

As shown in FIGS. 3, 4 and 8, an exterior 73 is provided to cover the light source section 10. As shown in FIGS. Specifically, the exterior 73 entirely covers the plurality of light source units 10 so as to hide all the light source units 10 . Thus, the exterior 73 also covers the entire housing 71 covered with the plurality of light source units 10 . That is, the light source unit 10 is arranged between the exterior 73 and the housing 71 .

As shown in FIG. 3, the exterior 73 has a substantially spherical outer shape. Specifically, the exterior 73 has an outline of a substantially tridodecahedron, similar to the outline of a soccer ball. That is, the outer surface of the exterior 73 is composed of 20 regular hexagonal curved surfaces and 12 regular pentagonal curved surfaces.

The exterior 73 is provided with a plurality of translucent portions 73a for transmitting light emitted from the light source portion 10 . The plurality of light-transmitting portions 73 a correspond to the plurality of light-emitting elements 11 one-to-one, and each light-transmitting portion 73 a is arranged above each light-emitting element 11 . Specifically, the plurality of light-transmitting portions 73a are mounted on each of the corners of the regular hexagon on the face of the regular hexagon, and are mounted on the centers of the sides of the regular pentagon on the face of the regular pentagon. It is Further, each translucent portion 73 a is provided so as to match the optical axis of the corresponding light emitting element 11 .

The translucent portion 73 a is made of a translucent member made of a translucent resin material such as a transparent resin or a transparent glass material, and is fitted into a through hole provided in the exterior 73 . In the present embodiment, the top view shape of the translucent portion 73a and the through hole is circular. Note that the light-transmitting portion 73a may be a lens or the like that controls the light distribution of the light from the light-emitting element 11 that passes through the light-transmitting portion 73a. As an example, the light-transmitting portion 73a is a diffusion lens that diffuses the light of the light-emitting element 11 that passes through the light-transmitting portion 73a.

Further, the exterior 73 is provided with a third inflow hole 93a and a third outflow hole 93b. The third inflow hole 93 a is a vent hole for allowing gas outside the lighting device 1 to flow into the internal space 71 a of the housing 71 , like the first inflow hole 91 a provided in the housing 71 . Further, the third outflow hole 93b is a vent hole for letting gas outflow from the internal space 71a of the housing 71, like the first outflow hole 91b provided in the housing 71. As shown in FIG.

Each of the third inflow hole 93a and the third outflow hole 93b is a through hole having an opening, for example. In the present embodiment, the opening shape of the third inflow hole 93a and the third outflow hole 93b is a shape obtained by combining six V-shaped slits, but the opening shape is not limited to this. Moreover, although the opening shape of the third inflow hole 93a and the opening shape of the third outflow hole 93b are the same, they may be different.

As shown in FIG. 8 , the third inflow hole 93 a exists at a position corresponding to the first inflow hole 91 a provided in the housing 71 . When viewed from the penetration direction of the third inflow hole 93a, the first inflow hole 91a and the third inflow hole 93a at least partially overlap. In this embodiment, the third inflow hole 93a also overlaps the second inflow hole 92a provided in the light source section 10 . Therefore, the third inflow hole 93a, the second inflow hole 92a, and the first inflow hole 91a are provided so as to overlap each other in the thickness direction of the exterior 73. As shown in FIG.

Also, the third outflow hole 93 b is present at a position corresponding to the first outflow hole 91 b provided in the housing 71 . At least a part of the first outflow hole 91b and the third outflow hole 93b overlap when viewed from the penetrating direction of the third outflow hole 93b. In the present embodiment, the third outflow hole 93b also overlaps the second outflow hole 92b provided in the light source section 10 . Therefore, the third outflow hole 93b, the second outflow hole 92b, and the first outflow hole 91b are provided so as to overlap each other in the thickness direction of the exterior 73. As shown in FIG.

Specifically, as shown in FIG. 3, each of the third inflow hole 93a and the third outflow hole 93b is provided in the central portion of the hexagonal curved surface of the exterior 73. , the plurality of translucent portions 73a are arranged to surround the third inflow hole 93a or the third outflow hole 93b.

As shown in FIG. 8, the controller 20 and the fan 30 are arranged in an internal space 71a of the housing 71 covered with the exterior 73 .

The control section 20 is a control circuit (control unit) having a circuit board 21 and a plurality of circuit elements 22 mounted on the circuit board 21 . As described above, the control section 20 has the function of controlling the plurality of light source sections 10 . Specifically, the control unit 20 individually controls the light emission modes (lighting/lighting, brightness, light color, etc.) of all the light emitting elements 11 in the lighting device 1 .

For this reason, the lighting device 1 according to the present embodiment needs to use a complicated control electronic component as the circuit element 22, unlike a general lighting device whose main purpose is not to produce a space such as a base light or an LED light bulb. There is As a result, the amount of heat generated by the control unit 20 is increased, and the internal space 71a of the housing 71 must be increased. Further, in this embodiment, the fan 30 is also arranged in the internal space 71a, so the internal space 71a needs to be further enlarged. Therefore, it is desirable that the outer diameter of the housing 71 is, for example, 10 cm or more.

On the other hand, lighting device 1 in the present embodiment does not need to display high-definition information, unlike a display that displays images. Therefore, the control electronic component can be smaller than the control electronic component used in the display. Therefore, the outer diameter of the housing 71 is, for example, 50 cm or less.

At least one or more fans 30 are arranged in the internal space 71a. In this embodiment, a plurality of fans 30 are arranged in the internal space 71a.

The plurality of fans 30 includes a suction fan 30a (first fan) arranged at a position corresponding to the first inflow hole 91a of the housing 71 and a position corresponding to the first outflow hole 91b of the housing 71. and an arranged exhaust fan 30b (second fan). Specifically, the suction fan 30a is arranged at a position facing the first inflow hole 91a, and the exhaust fan 30b is arranged at a position facing the first outflow hole 91b. In the present embodiment, the suction fan 30a and the exhaust fan 30b are both axial fans, but are not limited to this.

The suction fan 30 a is an inflow fan for forcing the air (outside air) outside the lighting device 1 to flow into the internal space 71 a of the housing 71 . By driving the suction fan 30a, for example, the outside air outside the lighting device 1 is passed through the third inflow hole 93a, the second inflow hole 92a, and the first inflow hole 91a to the inside of the housing 71. It can be taken into the space 71a.

The exhaust fan 30 b is an outflow fan for forcing the gas in the internal space 71 a of the housing 71 to flow out of the housing 71 . By driving the exhaust fan 30b, for example, the gas (such as hot air) in the internal space 71a of the housing 71 passes through the first outflow hole 91b, the second outflow hole 92b, and the third outflow hole 93b. , can be exhausted to the outside of the lighting device 1 .

In this way, by driving the suction fan 30a and the exhaust fan 30b, outside air is sucked into the internal space 71a of the housing 71, and the internal space 71a of the housing 71 is cooled by the sucked outside air. hot air can be exhausted to the outside of the housing 71 .

As described above, according to the illumination device 1 according to the present embodiment, the housing 71 includes the internal space 71a in which the control unit 20 that controls the plurality of light source units 10 is arranged, the first inlet 91a, the second One outflow hole 91b is provided, and the plurality of light source units 10 includes a first light source unit 10X provided with a second inflow hole 92a existing at a position corresponding to the first inflow hole 91a, and a second light source section 10Y provided with a second outflow hole 92b existing at a position corresponding to the first outflow hole 91b.

With this configuration, outside air can be taken into the internal space 71 a of the housing 71 to air-cool the internal space 71 a and the hot air in the internal space 71 a can be exhausted to the outside of the housing 71 . Thereby, the controller 20 arranged in the internal space 71a can be cooled by the outside air taken into the internal space 71a. Therefore, since the heat generated in the control unit 20 can be effectively radiated, it is possible to prevent the control unit 20 from malfunctioning or breaking down due to the heat.

Moreover, by providing the second inflow hole 92a in the light source section 10, the light source section 10 can also be cooled. That is, the light source section 10 can be cooled by passing the outside air through the second inflow hole 92 a of the light source section 10 . As a result, the heat generated in the light source section 10 can be effectively dissipated, so that the light output of the light source section 10 can be prevented from decreasing due to the heat.

Moreover, although not shown, in the present embodiment, a power supply 60 is also arranged in the internal space 71a of the housing 71 . Therefore, the power supply 60 can also be cooled by the above configuration. Therefore, the heat generated by the power supply 60 can also be effectively dissipated, and it is possible to prevent the power supply 60 from malfunctioning or deteriorating due to the heat.

In particular, if the control unit 20 and the power supply 60 are confined in the same spatial region, the control unit 20 and the power supply 60 are likely to be affected by the heat generated by each other, and the control unit 20 and the power supply 60 may malfunction. 20 and the power supply 60 can be prevented from receiving heat from each other. Therefore, even if the control unit 20 and the power supply 60 are arranged in the same internal space 71a, it is possible to effectively prevent the control unit 20 and the power supply 60 from malfunctioning.

Moreover, in the illumination device 1 according to the present embodiment, the housing 71 and the plurality of light source units 10 are arranged with a constant gap therebetween. In the present embodiment, by arranging the projection 100 between the housing 71 and each light source unit 10 , the space between the housing 71 and each light source unit 10 is kept constant. In other words, the protrusion 100 functions as a spacer between the housing 71 and each light source section 10 .

With this configuration, a gap G serving as an air layer is formed between each light source unit 10 and the housing 71 . As a result, the gap G between each light source unit 10 and the housing 71 functions as a heat separation layer, so heat generated in the light source unit 10 and heat generated in the control unit 20 can be separated. Therefore, it is possible to prevent the light source unit 10 and the control unit 20 from receiving heat from each other, so that the heat generated in the light source unit 10 and the heat generated in the control unit 20 can be effectively radiated.

Moreover, in the lighting device 1 according to the present embodiment, at least one or more fans 30 are arranged in the internal space 71 a of the housing 71 .

With this configuration, the internal space 71 a of the housing 71 can be forcibly air-cooled by the fan 30 . That is, outside air can be efficiently taken into the internal space 71a of the housing 71, and hot air in the internal space 71a can be efficiently exhausted. Thereby, the controller 20 can be effectively cooled. Therefore, it is possible to further suppress the occurrence of problems in the control unit 20 such as the control unit 20 malfunctioning or breaking down due to heat.

Furthermore, the forced air cooling by the fan 30 can also cool the light source section 10 . As a result, the heat generated in the light source section 10 can be dissipated more effectively, so that the decrease in the optical output of the light source section 10 due to the heat can be further suppressed. Furthermore, the heat generated by the power supply 60 can be dissipated more effectively.

Moreover, in the lighting device 1 according to the present embodiment, the fan 30 is arranged at a position corresponding to at least one of the first inflow hole 91a and the first outflow hole 91b.

With this configuration, the fan 30 efficiently takes outside air into the internal space 71a of the housing 71 through the first inflow hole 91a, and efficiently exhausts hot air in the internal space 71a through the first outflow hole 91b. You can

Further, in the lighting device 1 according to the present embodiment, a plurality of fans 30 are arranged. and an exhaust fan 30b arranged at a position corresponding to the outflow hole 91b.

With this configuration, outside air can be efficiently drawn into the internal space 71a of the housing 71 by the suction fan 30a, and hot air in the internal space 71a can be efficiently exhausted by the exhaust fan 30b. Therefore, the heat generated in the control section 20 can be more effectively dissipated. Also, the heat generated by the light source unit 10 and the power supply 60 can be more effectively dissipated.

Further, in the lighting device 1 according to the present embodiment, when viewed from the penetrating direction of the second inflow hole 92a provided in the first light source section 10X, the first inflow hole 91a of the housing 71 and the second at least a part of the inflow hole 92a.

With this configuration, the first inflow hole 91a and the second inflow hole 92a communicate with each other in the thickness direction of the housing 71, so that outside air can be taken into the internal space 71a of the housing 71 more efficiently. Therefore, the heat generated by the control section 20, the light source section 10 and the power supply 60 can be more effectively dissipated.

Further, in the lighting device 1 according to the present embodiment, when viewed from the penetrating direction of the second outflow hole 92b provided in the second light source unit 10Y, the first outflow hole 91b of the housing 71 and the second At least a part of the outflow hole 92b is overlapped with the outflow hole 92b.

With this configuration, the first outflow hole 91b and the second outflow hole 92b communicate with each other in the thickness direction of the housing 71, so that the hot air in the internal space 71a can be discharged more efficiently. Therefore, the heat generated by the control section 20, the light source section 10 and the power supply 60 can be more effectively dissipated.

Further, in the lighting device 1 according to the present embodiment, the second inflow hole 92a provided in the first light source section 10X is provided in the first substrate 12X of the first light source section 10X. The second outflow hole 92b provided in the second light source section 10Y is provided in the second substrate 12Y of the second light source section 10Y.

In this way, by providing the second inflow hole 92a and the second outflow hole 92b in different substrates 12, outside air is efficiently taken into the internal space 71a of the housing 71, and hot air in the internal space 71a is efficiently discharged. can be exhausted. Therefore, the heat generated in the control section 20 can be more effectively dissipated.

(Modification)
Although the present invention has been described above based on the embodiments, the present invention is not limited to the above embodiments.

For example, in the above-described embodiment, the first inflow hole 91a of the housing 71 and the second inflow hole 92a of the first light source unit 10X are arranged so as to at least partially overlap. Not exclusively. Specifically, as in the lighting device 1A shown in FIG. The second inflow holes 92a may be arranged at positions that do not overlap each other. In this case, the third substrate 12Z of the third light source section 10Z may face the first inlet 91a of the housing 71. As shown in FIG. As a result, the gap G between the third substrate 12Z and the outer surface of the housing 71 serves as an air passage. Outside air flows through the inflow hole 92a. As a result, the third substrate 12Z can be cooled from the back side. Therefore, heat generated in the third light source section 10Z having the third substrate 12Z can be efficiently dissipated. In this modified example, the third substrate 12Z may face not only the first inflow hole 91a but also the first outflow hole 91b, or may not face the first inflow hole 91a. Alternatively, it may face only the first outflow hole 91b. That is, the third substrate 12Z preferably faces at least one of the first inflow hole 91a and the first outflow hole 91b.

Further, although not shown, in addition to or instead of the fact that the first inflow hole 91a and the second inflow hole 92a of the housing 71 are not arranged at positions that do not overlap each other, the second The first outflow hole 91b and the second outflow hole 92b of the housing 71 may be arranged so as not to overlap each other when viewed from the penetrating direction of the second outflow hole 92b of the light source unit 10Y. . Also in this case, the third substrate 12Z of the third light source section 10Z is preferably opposed to at least one of the first inflow hole 91a and the first outflow hole 91b of the housing 71 .

In addition, in the above-described embodiment, the illumination device 1 has the wiring pipe 80 as an attachment member attached to the ceiling, but the present invention is not limited to this. For example, as in a lighting device 10B shown in FIG. 10 , a base 80B may be provided at the top of the exterior 73 instead of the wiring tube 80 . The mouthpiece 80B is, for example, made of metal and has a cylindrical shape with a bottom, and has a shell portion whose outer peripheral surface is a threaded portion, and an eyelet portion attached to the shell portion via an insulating portion. The type of base 80B is not particularly limited, but in FIG. 10, a screw-in Edison type (E type) base is used. Specifically, E26 type, E17 type, E16 type, or the like can be used as the base 80B. Note that the base 80B may be of the Swan type (insertion type) instead of the Edison type.

Moreover, although both the suction fan 30a and the exhaust fan 30b are used as the fan 30 in the lighting device 1 according to the above embodiment, the present invention is not limited to this. For example, as the fan 30, only one of the suction fan 30a and the exhaust fan 30b may be used.

Moreover, although the fan 30 is used in the illumination device 1 in the above embodiment, the fan 30 may not be used. That is, the lighting device 1 may be a fanless lighting fixture. In this case, it is possible to take in outside air into the internal space 71a of the housing 71 by natural convection and exhaust hot air from the internal space 71a. That is, the internal space 71a of the housing 71 can be naturally air-cooled, and the heat generated by the control unit 20 and the power supply 60 can be dissipated. Also, the heat generated in the light source section 10 can be dissipated by natural air cooling. In this case, each inflow hole (first inflow hole 91a, second inflow hole 92a, third inflow hole 93a) and each outflow hole (first outflow hole 91b, second outflow hole 92b, third It is not necessary to distinguish from the outflow hole 93b), and the inflow hole may be the outflow hole, or the outflow hole may be the outflow hole. In other words, both the plurality of outflow holes and the plurality of inflow holes can serve as vent holes for inflow and outflow. Note that this can also be applied to the illumination device 1 in the above embodiment.

Moreover, although the lighting apparatus 1 in the above embodiment is a lighting fixture with an integrated power supply, and the power supply 60 is arranged in the internal space 71a of the housing 71, the present invention is not limited to this. Specifically, the lighting device 1 may be a separate power source type lighting fixture in which the power source 60 is installed outside the exterior 73 .

Moreover, in the above-described embodiment, the illumination device 1 is installed on the ceiling, but the present invention is not limited to this. The lighting device 1 may be installed on other construction materials such as a wall surface, or may be placed on the floor.

In addition, in the above-described embodiment, the outer shape of the illumination device 1 is substantially spherical or polyhedral, but it is not limited to this. For example, as long as each light emitting element 11 is arranged to emit light in a direction radially extending from the center of the lighting device, the lighting device can adopt any shape.

In the above-described embodiment, the illumination device 1 is configured to emit light in all directions of 360° by the plurality of light emitting elements 11. However, it is difficult to emit light in some directions. It may be impossible or unnecessary. For example, it is difficult, impossible, or unnecessary for the lighting device 1 to irradiate light in the direction in which a cable or socket for installing the lighting device 1 exists, and it is not necessary to irradiate light in this direction. . Also, for some other reason, the lighting device may not irradiate light in some directions. Even in this case, in the above embodiments, it may be said that the illumination device can irradiate light in all directions of 360 degrees.

Further, in the above-described embodiment, the lighting device 1 itself may be provided with a user interface (for example, an operation unit, a display unit) similar to the user interface 120 provided in the control terminal 2 . For example, the illumination device 1 may have a switching button or the like for switching the irradiation area. In addition, the lighting device 1 may have some other functions that the control terminal 2 has.

In addition, forms obtained by applying various modifications that a person skilled in the art can think of to the above embodiments, or by arbitrarily combining the components and functions in the above embodiments without departing from the spirit of the present invention. Any implementations are also included in the invention.

Further, in the above-described embodiment, the housing 71 and the plurality of light source units 10 are arranged at regular intervals, but the present invention is not limited to this. That is, in the above-described embodiment, the surface of the housing 71 and the substrate 12 of each light source unit 10 are configured so as not to come into contact with each other, but the present invention is not limited to this. For example, part of the housing 71 and the plurality of light source units 10 may be in contact with each other. In this case, each light source unit 10 may be mounted on the surface of the housing 71 without providing the housing 71 with the protrusion 100 . That is, the substrate 12 of the light source unit 10 may be in contact with the surface of the housing 71 without the gap G between the light source unit 10 and the housing 71 .

Also, in the above description, the control units 20 and 130 and the like may be circuits. These circuits may form one circuit as a whole, or may be separate circuits. These circuits may be general-purpose circuits or dedicated circuits.

Further, the processes described as the operations of the control units 20 and 130 may be executed by a computer. For example, a computer executes each of the above processes by executing a program using hardware resources such as a processor (CPU), memory, and input/output circuits. Specifically, the processor acquires data to be processed from a memory or an input/output circuit or the like, calculates the data, or outputs the calculation result to the memory or an input/output circuit or the like, thereby executing each process. . Note that the processor may be composed of one semiconductor chip, or physically composed of a plurality of semiconductor chips. When the processor is composed of a plurality of semiconductor chips, each control of each embodiment may be implemented by separate semiconductor chips.

Also, the program for executing each of the processes described above may be recorded in a non-temporary recording medium such as a computer-readable CD-ROM. In this case, the computer reads the program from the non-temporary recording medium and executes each process by executing the program. For example, the method in the above illumination system can be implemented as a program that causes a computer to execute, or as a computer-readable recording medium recording such a program.

The present invention can also be implemented as a program for causing a computer to function as the lighting system, or as a computer-readable recording medium storing the program.

Reference Signs List 1, 1A lighting device 2 control terminal 3 lighting system 10 light source unit 10X first light source unit 10Y second light source unit 10Z third light source unit 11 light emitting element 11X first light emitting element 11Y second light emitting element 11Z third 12 substrate 12X first substrate 12Y second substrate 12Z third substrate 20 control section 30 fan 30a suction fan 30b exhaust fan 60 power supply 71 housing 71a internal space 73 exterior 73a translucent section 91a first inflow Hole 91b First outflow hole 92a Second inflow hole 92b Second outflow hole

Claims (13)

A lighting device,
a housing having a substantially spherical or polyhedral outer shape;
a plurality of light source units arranged on the outer surface side of the housing and having light emitting elements that emit light toward the outside of the lighting device;
A control unit that controls the plurality of light source units,
The housing includes an internal space in which the control unit is arranged, a first inflow hole for allowing gas outside the lighting device to flow into the internal space, and a flow port for discharging the gas from the internal space. a first outflow hole;
The plurality of light source units include a first light source unit provided with a second inflow hole present at a position corresponding to the first inflow hole, and a second light source unit provided at a position corresponding to the first outflow hole. Including a second light source section provided with two outflow holes and a third light source section
The first light source unit has a first substrate and a first light emitting element arranged on the first substrate,
The second light source unit has a second substrate and a second light emitting element arranged on the second substrate,
The third light source unit has a third substrate and a third light emitting element arranged on the third substrate,
The second inflow hole is provided in the first substrate,
The second outflow hole is provided in the second substrate,
The third substrate is not provided with the second inflow hole and the second outflow hole,
the third substrate faces at least one of the first inlet and the first outlet;
lighting device. The housing and the plurality of light source units are arranged at regular intervals,
The lighting device according to claim 1 . Furthermore, at least one or more fans are arranged in the internal space,
3. A lighting device according to claim 1 or 2. The fan is arranged at a position corresponding to at least one of the first inflow hole and the first outflow hole,
4. A lighting device according to claim 3. A plurality of the fans are arranged,
The plurality of fans includes a suction fan arranged at a position corresponding to the first inflow hole and an exhaust fan arranged at a position corresponding to the first outflow hole,
4. A lighting device according to claim 3. At least a part of the first inflow hole and the second inflow hole overlap when viewed from the penetrating direction of the second inflow hole,
The lighting device according to any one of claims 1-5. When viewed from the penetrating direction of the second outflow hole, the first outflow hole and the second outflow hole at least partially overlap,
The lighting device according to any one of claims 1-6. The first inflow hole and the second inflow hole are arranged at positions that do not overlap with each other when viewed from the penetrating direction of the second inflow hole,
The lighting device according to any one of claims 1-5. When viewed from the penetration direction of the second outflow hole, the first outflow hole and the second inflow hole are arranged at positions that do not overlap with each other.
The lighting device according to any one of claims 1 to 5 and 8. further comprising a power source for generating driving power for causing each of the plurality of light source units to emit light;
The power supply is arranged in the internal space,
The lighting device according to any one of claims 1-9 . The light emitting element emits light of two or more colors,
The lighting device according to any one of claims 1-10 . Each of the plurality of light source units has a plurality of the light emitting elements,
The lighting device according to any one of claims 1-11 . A lighting device according to any one of claims 1 to 12 ;
a control terminal that controls the lighting device;
lighting system.

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