WO2022230691A1 - 照明装置、照明制御方法及びプログラム - Google Patents
照明装置、照明制御方法及びプログラム Download PDFInfo
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- WO2022230691A1 WO2022230691A1 PCT/JP2022/017925 JP2022017925W WO2022230691A1 WO 2022230691 A1 WO2022230691 A1 WO 2022230691A1 JP 2022017925 W JP2022017925 W JP 2022017925W WO 2022230691 A1 WO2022230691 A1 WO 2022230691A1
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- lighting device
- light
- emission pattern
- light emission
- posture
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
- F21V23/04—Arrangement of electric circuit elements in or on lighting devices the elements being switches
- F21V23/0442—Arrangement of electric circuit elements in or on lighting devices the elements being switches activated by means of a sensor, e.g. motion or photodetectors
- F21V23/0492—Arrangement of electric circuit elements in or on lighting devices the elements being switches activated by means of a sensor, e.g. motion or photodetectors the sensor detecting a change in orientation, a movement or an acceleration of the lighting device, e.g. a tilt switch
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S2/00—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction
- F21S2/005—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction of modular construction
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
- H05B47/155—Coordinated control of two or more light sources
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
- H05B47/175—Controlling the light source by remote control
- H05B47/185—Controlling the light source by remote control via power line carrier transmission
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
- H05B47/175—Controlling the light source by remote control
- H05B47/19—Controlling the light source by remote control via wireless transmission
- H05B47/195—Controlling the light source by remote control via wireless transmission the transmission using visible or infrared light
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2107/00—Light sources with three-dimensionally disposed light-generating elements
- F21Y2107/40—Light sources with three-dimensionally disposed light-generating elements on the sides of polyhedrons, e.g. cubes or pyramids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
Definitions
- the present disclosure relates to lighting devices, lighting control methods, and programs.
- Patent Document 1 when the transmissive display of Patent Document 1 is applied to a lighting device that can illuminate in all directions, the posture of the lighting device becomes more complicated, making it difficult to set the light emission pattern.
- an object of the present disclosure is to provide a lighting device, a lighting control method, and a program that can facilitate setting of a light emission pattern of a lighting device that can illuminate in all directions.
- a lighting device includes a plurality of light sources that illuminate in all directions, a detection unit that detects an installation posture of the lighting device, and according to the installation posture of the lighting device detected by the detection unit, and a control unit that changes a light emission pattern of each of the plurality of light sources.
- a lighting control method detects an installation posture of a lighting device, changes a light emission pattern of each of a plurality of light sources capable of omnidirectional illumination according to the installation posture, The light emission pattern when the lighting device emits light in the first posture and the light emission pattern when the lighting device emits light in the second posture, which is an installation posture different from the first posture, maintain the same light emission pattern. , controlling each of the plurality of light sources.
- a program according to one aspect of the present disclosure causes a computer to execute a lighting control method.
- the lighting device and the like of the present disclosure it is possible to easily set the light emission pattern of the lighting device that can illuminate in all directions.
- FIG. 1 is a perspective view showing a lighting device according to an embodiment.
- FIG. 2 is an exploded perspective view showing the lighting device according to the embodiment.
- FIG. 3 is a block diagram showing the lighting device according to the embodiment.
- FIG. 4 is a cross-sectional view showing the illumination device taken along line IV-IV of FIG.
- FIG. 5 is a flowchart showing processing operations when initializing the lighting device according to the embodiment.
- FIG. 6 is a diagram showing the light emitting position when setting the origin of the light source in the initial setting of the lighting device according to the embodiment.
- FIG. 7 is a diagram showing how the polar coordinates in the lighting device are reset in the initialization of the lighting device according to the embodiment.
- FIG. 1 is a perspective view showing a lighting device according to an embodiment.
- FIG. 2 is an exploded perspective view showing the lighting device according to the embodiment.
- FIG. 3 is a block diagram showing the lighting device according to the embodiment.
- FIG. 4 is a cross-sectional view showing the illumination
- FIG. 8 is a flowchart showing processing operations when the installation posture of the lighting device according to the embodiment is changed.
- FIG. 9 is a diagram showing a reset light emission pattern when the installation posture of the lighting device according to the embodiment is changed.
- FIG. 10 is a diagram showing a reset light emission pattern when the installation attitude is changed when the entire lighting device according to the embodiment is caused to emit light.
- 11A and 11B are diagrams illustrating a reset light emission pattern example 1 when the installation posture of the lighting device according to the embodiment is changed.
- FIG. 12 is a diagram illustrating a reset example 2 of light emission pattern when the installation posture of the lighting device according to the embodiment is changed.
- FIG. 13 is a diagram illustrating a reset example 3 of light emission pattern when the installation posture of the lighting device according to the embodiment is changed.
- 14A and 14B are diagrams illustrating a reset light emission pattern example 4 when the installation posture of the lighting device according to the embodiment is changed.
- each figure is a schematic diagram and is not necessarily strictly illustrated. Moreover, in each figure, the same code
- expressions such as a substantially spherical shape are used.
- substantially spherical means not only perfectly spherical, but also substantially spherical, that is, including an error of, for example, several percent.
- substantially spherical means spherical within the range in which the effects of the present disclosure can be achieved. The same applies to expressions using other "abbreviations”.
- FIG. 1 is a perspective view showing a lighting device 2 according to an embodiment.
- FIG. 2 is an exploded perspective view showing the illumination device 2 according to the embodiment.
- FIG. 3 is a block diagram showing the illumination device 2 according to the embodiment.
- the lighting system 1 sets the light emission pattern of the lighting device 2 by operating the terminal device 20 using the terminal device 20 of FIG. 3, and executes the set light emission pattern.
- the lighting device 2 is controlled based on the control information for That is, the lighting system 1 controls the light emission patterns of the plurality of light sources 11 of the lighting device 2, such as on/off, illumination (irradiation) direction, luminance (brightness), light color, etc., according to the control information.
- the light emission pattern of device 2 can be controlled.
- the lighting system 1 can also acquire control information in which the light emission pattern of the lighting device 2 is set from an external device via a network, and controls the lighting device 2 based on the acquired control information. By setting the light emission pattern included in the control information, the lighting device 2 can be controlled based on the set light emission pattern.
- external devices are systems and terminal devices other than the lighting system 1 .
- the lighting system 1 includes a lighting device 2 and a terminal device 20.
- the lighting device 2 is exemplified in the present embodiment, a plurality of lighting devices 2 may be used, and the number of lighting devices 2 is not limited to one.
- the lighting device 2 is arranged, for example, on the ceiling, floor, wall, desk, or the like in a building.
- the outer shape of the illumination device 2 is, for example, substantially spherical or substantially polyhedral.
- the lighting device 2 has a plurality of light sources 11 .
- a plurality of light sources 11 are arranged throughout the illumination device 2 . For this reason, since the illumination device 2 can irradiate light in all directions from the plurality of light sources 11, it can illuminate in all directions.
- the lighting device 2 is a lighting fixture that irradiates (illuminates) light in all directions of 360° from a plurality of light sources 11 that illuminate in corresponding directions.
- the 360° omnidirectional direction means all directions from the center of the illumination device 2 to any point on the light emitting surface 2a.
- the illumination device 2 emits light in an arbitrary direction centered on the illumination device 2 by selectively causing the plurality of light sources 11 to emit light. That is, the lighting direction of the light emitted from the lighting device 2 is arbitrary.
- the lighting device 2 emits light in all directions of 360° by causing all the light sources 11 to emit light at the same time, or causes some of the light sources 11 to emit light in some directions. irradiate light only on In other words, the illumination device 2 not only irradiates light in all directions of 360°, but also irradiates light in any direction in a spot-like manner.
- the illumination device 2 can be configured so that the light emission pattern can illuminate in a certain direction by performing initial settings. In other words, if the lighting device 2 is initialized after being installed, the lighting device 2 can emit light in a fixed direction even if the installation posture is changed.
- the installation orientation includes the orientation, arrangement position, inclination, and the like of the lighting device 2 .
- the lighting device 2 has a dimming control function and a toning control function. Specifically, the illumination device 2 changes the luminance (brightness) and light color (color temperature or color) of the emitted light. In the present embodiment, the illumination device 2 changes the brightness and color of light for each of the plurality of light sources 11 .
- the illumination device 2 irradiates an object such as a wall surface with light evenly in full color.
- a three-color light source of RGB (Red, Green, and Blue) is used as described later.
- the plurality of light sources 11 are evenly distributed at a high density. Thereby, the lighting device 2 can produce the space in which the lighting device 2 is arranged by controlling the light to irradiate.
- the illumination device 2 in the present embodiment needs to illuminate a wall surface or the like, so the light source 11 needs to have a high light output. Therefore, the brightness of each light source 11 is higher than that of LED (Light Emitting Diode) light sources used in backlights of liquid crystal displays or LED light sources used in LED displays.
- LED Light Emitting Diode
- the illumination device 2 includes a housing 5 , a translucent portion 6 , a plurality of light sources 11 , a first detection portion 21 , a second detection portion 22 , a control portion 12 , a power supply portion 13 , and a storage portion 15 . , and a communication unit 14 .
- the housing 5 is an exterior cover having a substantially spherical or polyhedral outer shape.
- the housing 5 constitutes a polyhedral outline.
- the outer surface of the housing 5 is composed of a plurality of surfaces.
- the housing 5 forms an icosahedron with twelve vertices. That is, the outer surface of the housing 5 is composed of twenty equilateral triangular surfaces.
- the housing 5 of the present embodiment is made of white or black ABS (Acrylonitrile Butadiene Styrene), PC (Poly Carbonate), etc. with a thickness of about 1 to 2 (mm).
- the housing 5 is provided with an internal space K whose interior is hollow.
- a plurality of light sources 11, a control section 12, a power supply section 13, a storage section 15, and the like are arranged in the internal space K. That is, the internal space K is a controller installation space for installing the plurality of light sources 11, the controller 12, the power supply 13, the storage 15, and the like.
- FIG. 4 is a cross-sectional view showing the illumination device 2 taken along line IV-IV of FIG.
- the housing 5 is formed with a plurality of through holes 5a for passing the light emitted from each of the plurality of light emitting elements 11a.
- the plurality of through holes 5a correspond to the plurality of light emitting elements 11a on a one-to-one basis, and are formed at positions facing the plurality of light emitting elements 11a.
- three through-holes 5a are formed in an equilateral triangular plane that forms the outer surface of the housing 5 .
- a plurality of translucent portions 6 are provided in each of the plurality of through holes 5a of the housing 5 to allow the light emitted from the light source 11 to pass therethrough.
- the plurality of light-transmitting portions 6 correspond to the plurality of light-emitting elements 11a on a one-to-one basis, and the respective light-transmitting portions 6 are arranged so as to face the respective light-emitting elements 11a.
- the plurality of light-transmitting portions 6 are provided on the sides of the equilateral triangular corners on the equilateral triangular surface.
- each translucent portion 6 is provided so as to match the optical axis of the corresponding light emitting element 11a.
- the translucent part 6 is made of a translucent resin material such as a transparent resin or a translucent member such as a transparent glass material, and is fitted in a through hole 5 a provided in the housing 5 .
- the through hole 5a has a circular shape when viewed from the front.
- the translucent portion 6 functions as a lens that controls the light distribution of the light from the light emitting element 11 a that passes through the translucent portion 6 .
- the translucent part 6 is a lens that diffuses and controls light distribution of the light from the light emitting element 11a that passes through the translucent part 6 .
- the translucent portion 6 has a plurality of minute irregularities (dots, prisms) formed on the surface thereof by texturing or the like, or has a dot pattern printed on the surface. This makes it difficult to visually recognize the presence of the light emitting element 11 a inside the housing 5 from the outside through the light transmitting portion 6 .
- Each of the plurality of light sources 11 is a light emitting module having at least one light emitting element 11a.
- each light source 11 has a plurality of light emitting elements 11a.
- Each of the plurality of light sources 11 emits light in a predetermined light emission pattern based on control information from the control section 12 .
- the plurality of light sources 11 are arranged to form a substantially spherical or substantially polyhedral outer shape.
- the plurality of light sources 11 form an icosahedron with twelve vertices.
- nineteen equilateral triangular light sources 11 and equilateral triangular connection substrates are provided.
- the plurality of light sources 11 are composed of twenty equilateral triangular light sources 11 .
- Each of the plurality of light sources 11 has a light emitting element 11a and a substrate 11b.
- the plurality of light-emitting elements 11a are arranged substantially over the entire illumination device 2 . In other words, the plurality of light emitting elements 11a are scattered so that light can be emitted from the lighting device 2 in all directions. Each light-emitting element 11a can illuminate its corresponding direction. In the present embodiment, since a plurality of light emitting elements 11a are mounted on one substrate 11b, directions of light emitted from the light emitting elements 11a are the same on the same substrate. The direction of light emitted from each light emitting element 11a may be different. Each of the plurality of light emitting elements 11 a emits light outward from the illumination device 2 . Specifically, the optical axis of each light emitting element 11a is perpendicular to the mounting surface of the substrate 11b. The optical axis is a straight line along the main light emitted from each light emitting element 11a.
- each light emitting element 11a emits light of two or more colors.
- each light emitting element 11a is a three-color light source of RGB, emits three-color monochromatic light of red light, blue light and green light, and dims these three-color monochromatic lights. It emits colored light or white light obtained by
- each of the light-emitting elements 11a is a surface-mounted (SMD: Surface Mount Device) type LED element in which an LED is packaged. and a sealing member for sealing the plurality of LED chips.
- SMD Surface Mount Device
- 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.
- the light emitting element 11a configured in this manner is mounted on the mounting surface of the substrate 11b.
- a plurality of light emitting elements 11a are mounted on one substrate 11b.
- the plurality of light emitting elements 11a are arranged at regular intervals when the illumination device 2 is viewed as a whole.
- three light emitting elements 11a are mounted on one substrate 11b. Further, the plurality of light emitting elements 11a are arranged at regular intervals on each substrate 11b.
- the substrate 11b is a mounting substrate having a mounting surface for mounting the light emitting element 11a. Although not shown, the mounting surface of the substrate 11b is provided with metal wiring, a connector for power supply, and the like. In the present embodiment, the plurality of substrates 11b are electrically connected to the control unit 12 by one wiring by electrically connecting the connectors of the substrates 11b.
- each substrate 11b is a shape having rotational symmetry. That is, the shape of each substrate 11b is circular, polygonal, or the like.
- the substrate 11b has a shape corresponding to a polygonal surface forming part of the substantially polyhedral outer surface of the housing 5 .
- the substrate 11b is composed of an equilateral triangular substrate 11b in plan view. A polyhedron is formed by combining a plurality of equilateral triangular substrates 11b. In this way, the illumination device 2 is configured in a substantially spherical or polyhedral shape by the plurality of substrates 11b.
- Each substrate 11b is fixed to the polyhedral housing 5 by being attached to the housing 5 with a fixing member such as a screw.
- the housing 5 is an icosahedron. Therefore, the housing 5 can arrange the plurality of light sources 11 in the shape of an icosahedron.
- a power supply connector for supplying power from an external power supply to the power supply unit 13, a communication connector for communicating with an external device and a terminal device, and a A connecting portion is provided to which a mooring fitting that functions as a mounting member for mounting the lighting device 2 on a ceiling, a wall, or the like is connected. Therefore, in the present embodiment, the light source 11 is not arranged on one predetermined surface. That is, in the present embodiment, the housing 5 has the plurality of light sources 11 arranged on 19 sides of the icosahedron.
- a plurality of light emitting elements 11a are regularly arranged on the substrate 11b.
- light-emitting elements 11a (three in total) are mounted on the equilateral triangular substrate 11b on the sides of the equilateral triangular corners.
- the substrate 11b 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, a printed wiring board made of a glass epoxy board on which metal wiring is formed is used as the board 11b.
- the substrate 11b is a rigid substrate, but may be a flexible substrate.
- the first detection unit 21 detects the installation posture of the lighting device 2 .
- the first detection unit 21 outputs information indicating the detected installation attitude of the lighting device 2 to the control unit 12 .
- the installation attitude of the lighting device 2 is, for example, the inclination of the lighting device 2 based on the amount of change with respect to the initial origin predetermined at the time of shipment from the factory or the origin set in the initial setting.
- the installation posture is not limited to being fixed to the ceiling, floor, wall, desk, or the like, but includes the posture of simply being placed on the floor, desk, or the like.
- the first detector 21 is an example of a detector.
- the first detection unit 21 detects the rotational acceleration of the lighting device 2 , which is the amount of change in the installation posture of the lighting device 2 .
- the first detection unit 21 outputs information indicating the detected rotational acceleration of the lighting device 2 to the control unit 12 .
- the first detection unit 21 is a gyro sensor that can detect the installation attitude of the lighting device 2 and also detect the rotational acceleration of the lighting device 2 . Further, in the present embodiment, the first detection unit 21 is composed of at least two systems of detection units so as to be able to detect the rotation amounts of at least two axes in the illumination device 2 . Therefore, in the present embodiment, the first detection unit 21 detects the amount of rotation of at least two orthogonal axes (for example, at least two of the pitch axis, roll axis, and yaw axis) in the lighting device 2. be able to.
- the detection unit capable of detecting the installation attitude of the lighting device 2 and the detection unit capable of detecting the rotational acceleration of the lighting device 2 may be separate detection units.
- the second detection unit 22 detects the north, south, east, west, and top and bottom azimuths of the lighting device 2 .
- the second detection unit 22 outputs information indicating the detected orientation of the lighting device 2 to the control unit 12 .
- the second detection unit 22 is at least one of a gyro sensor and an electronic compass.
- the azimuth is, for example, the azimuth with respect to the center of the lighting device 2, such as an initial origin predetermined at the time of factory shipment, an origin set by initial setting, or the like.
- the second detector 22 is an example of a detector.
- the control section 12 is a control circuit that controls each section of the lighting device 2 .
- the control unit 12 performs various controls, for example, by causing the processor to execute a program held in the storage unit 15 .
- 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 a Chip).
- control unit 12 executes the light emission pattern stored in the storage unit 15, thereby controlling the plurality of light sources 11 according to the light emission pattern. Specifically, the control unit 12 controls the light emission pattern of the light emitted by each light source 11 so that the light emission pattern corresponding to the control information acquired from the storage unit 15 or the external device is used. That is, the control unit 12 individually controls light emission patterns of light emitted by all the light sources 11 included in the lighting device 2 . For example, the control unit 12 controls lighting and extinguishing (lighting, extinguishing), changes brightness, and changes light color according to the light emission pattern of each light source 11 .
- control information includes luminance information indicating the luminance of light emitted by a predetermined light source 11 among the plurality of light sources 11 to be controlled, color information indicating the color of light emitted by the light source 11, and the like.
- the control information also includes the identifier of the light source 11 to emit light, the period during which the light source 11 emits light for each identifier, and the like.
- control unit 12 changes each light emission pattern, which is a change in light emission over time, of the plurality of light sources 11 according to the installation posture of the lighting device 2 detected by the first detection unit 21 .
- control unit 12 changes the light emission pattern of each of the plurality of light sources 11 according to the change in the installation posture of the lighting device 2 .
- the control unit 12 controls each of the plurality of light sources 11 according to the installation posture after the change. Change the light emission pattern. More specifically, the control unit 12 changes the light emission pattern of each of the plurality of light sources 11 based on the installation orientation of the lighting device 2 indicated by the information acquired from the first detection unit 21 . For example, if the lighting device 2 is in the first posture, the control unit 12 causes the lighting device 2 to illuminate with the first light emission pattern, and if the installation posture of the lighting device 2 changes to the second posture that is different from the first posture, the lighting device 2 changes to the second posture. A plurality of light sources 11 are controlled so as to illuminate with a second light emission pattern that is different from the first light emission pattern.
- the control unit 12 determines that the light emission pattern when the lighting device 2 emits light in the first posture and the light emission pattern when the lighting device 2 emits light in the second posture, which is different from the first posture, are the same.
- Each of the plurality of light sources 11 is controlled so as to maintain a light emission pattern of .
- the control unit 12 controls the plurality of light sources 11 so that the light emitting positions are substantially maintained (not changed) when the lighting device 2 is observed from a fixed point even if the installation posture of the lighting device 2 changes. to control. Therefore, originally, when the installation posture of the lighting device changes, the direction in which the light is emitted changes, so the lighting mode on the irradiation surface also changes. However, in the lighting device 2 of the present embodiment, the light emission pattern is maintained even if the installation posture changes, so the illumination mode of the irradiation surface does not substantially change.
- control unit 12 predicts the amount of change in the light emission pattern of each of the plurality of light sources 11 according to the rotational acceleration detected by the first detection unit 21, and controls the light emission pattern of each of the plurality of light sources 11.
- the control unit 12 changes from the first posture to the second posture based on the rotational acceleration indicated by the information acquired from the first detection unit 21 . It can be estimated that it changes to two poses. For this reason, even if the posture of the lighting device 2 changes rapidly, the control unit 12 can control the light emission pattern to be the same as when the lighting device 2 is observed from a fixed point and emits light in the first posture and the second posture. Each of the plurality of light sources 11 is controlled so as to maintain a light emission pattern of .
- control unit 12 sets a preset initial value according to the orientation of the lighting device 2 detected by the second detection unit 22 . Specifically, the control unit 12 maintains the light emission pattern based on the set origin of the lighting device 2 and the orientation of the lighting device 2 indicated by the information acquired from the second detection unit 22. , controls each of the plurality of light sources 11 .
- control unit 12 is an elongated plate-like control circuit, and is arranged so as to be vertical to a predetermined surface on which power supply connectors and the like are provided. Located within 5. Specifically, the control unit 12 is arranged in a posture that stands substantially vertically with respect to the predetermined one surface. As a result, compared to the case where the control unit 12 is arranged substantially parallel to the predetermined one surface, an increase in the area of the substrate constituting the control unit 12 is suppressed, and the electronic components constituting the control unit 12 are not pressed. can be arranged as
- the power supply unit 13 has a function of supplying power to each unit of the lighting device 2 .
- the power supply unit 13 is, for example, a power supply circuit in which a plurality of electronic components are mounted on a printed circuit board.
- the power supply unit 13 generates, for example, drive power for causing each of the plurality of light sources 11 to emit light.
- the power supply unit 13 generates drive power for causing the light sources 11 to emit light, and supplies this drive power to each light source 11 . That is, the power supply unit 13 converts commercial AC power into DC power, and supplies the DC power to the light sources 11 as drive power for causing the light sources 11 to emit light.
- the communication unit 14 has a function of communicating with the terminal device 20. Specifically, the communication unit 14 receives an instruction for initial setting from the terminal device 20 and receives control information for controlling the light emission pattern of the lighting device 2 from the terminal device 20 . The instruction and control information received by the communication unit 14 are output to the control unit 12 .
- the communication method by the communication unit 14 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.
- the storage unit 15 stores the orientation of the illumination device 2 indicated by the origin set in the initial settings, the light emission patterns of the plurality of light sources 11, and the like. Also, the light emission pattern is stored in the storage unit 15 by being set by the terminal device 20 or by being acquired from an external device. In addition, the control information and the like acquired by the control unit 12 are periodically stored in the storage unit 15 .
- the storage unit 15 includes, for example, primary storage devices such as RAM (Random Access Memory) and ROM (Read Only Memory).
- the storage unit 15 may also include secondary storage devices such as HDD (Hard Disk Drive) and SSD (Solid State Drive), and tertiary storage devices such as optical discs and SD cards.
- Terminal device 20 accepts a user's operation input so that the light emission pattern is maintained even if the posture of the lighting device 2 changes. can be set.
- the terminal device 20 generates control information for controlling light emission patterns such as on/off, brightness, light color, light emission period, blinking, etc., for each of the plurality of light sources 11 by receiving operation input from the user. .
- the terminal device 20 receives an operation input from the user by displaying a setting screen for setting the light emission pattern of the lighting device 2 on the display unit, and changes the lighting device 2 based on the received operation input.
- the terminal device 20 changes the light emission pattern of the lighting device 2 by transmitting the control information to the lighting device 2 .
- the terminal device 20 is a device capable of controlling the lighting device 2 .
- the terminal device 20 is a mobile terminal such as a smartphone or a tablet terminal operated by a user.
- the terminal device 20 is not limited to a mobile terminal, and may be a stationary terminal such as a desktop personal computer.
- the terminal device 20 may be a terminal capable of operating equipment other than the lighting device 2 , or may be a terminal such as a dedicated remote control for operating only the lighting device 2 .
- FIG. 5 is a flowchart showing the processing operation when initializing the lighting device 2 according to the embodiment.
- FIG. 6 is a diagram showing how the origin of the light source 11 is set in the initial setting of the illumination device 2 according to the embodiment.
- FIG. 7 is a diagram showing how the polar coordinates in the lighting device 2 are reset in the initialization of the lighting device 2 according to the embodiment.
- the user operates the terminal device 20 to activate the lighting device 2 in order to perform initial settings for the lighting device 2 .
- the second detection unit 22 detects the vertical position (orientation) of the illumination device 2 (S11). That is, the second detection unit 22 detects the vertical position of the lighting device 2 arranged in a predetermined installation posture.
- the second detection unit 22 outputs information indicating the detected vertical position of the lighting device 2 to the control unit 12 .
- the control unit 12 stores the acquired information indicating the vertical position of the lighting device 2 in the storage unit 15 .
- the controller 12 of the illumination device 2 causes the light source 11 at the initial origin to emit light (S12).
- the light source 11 at the initial origin is the origin preset in the initial state.
- the initial origin is an origin predetermined when the lighting device 2 is shipped from the factory.
- the initial origin may be set on a surface opposite to the predetermined surface on which the power supply connector and the like are provided.
- the initial origin may be automatically set by the control unit 12 so that the light source 11 located vertically below becomes the origin.
- the user sets the origin of the lighting device 2 by operating the terminal device 20 .
- an origin which is an irradiation direction in which the lighting device 2 emits light
- the user operates the terminal device 20 to set the light source 11 serving as the origin among the plurality of light sources 11 in the lighting device 2 .
- the lighting device 2 receives control information from the terminal device 20 according to the user's operation.
- the control unit 12 switches the light source 11 to emit light from among the plurality of light sources 11 according to the received control information. As shown in FIG.
- the position (hatched dots) of the light source 11 that emits light along the direction indicated by the dashed arrow is changed.
- the position of the light source 11 that emits light can be changed along the direction indicated by the dashed-dotted line arrow by operating the left/right direction switching button. The switching of the light source 11 to emit light is performed until the user sets the origin.
- the control unit 12 stores origin setting information, which is information indicating the origin set by the user, in the storage unit 15, thereby changing the origin to that specified by the user. (S13).
- control unit 12 resets the polar coordinates within the illumination device 2 (S14).
- the polar coordinates of all of the plurality of lighting devices 2 can be made common by performing the initial settings of this operation example. Light emission patterns such as irradiation directions of all of the plurality of lighting devices 2 can be unified.
- FIG. 8 is a flowchart showing processing operations when the installation posture of the lighting device 2 according to the embodiment is changed.
- FIG. 9 is a diagram showing a reset light emission pattern when the installation posture of the lighting device 2 according to the embodiment is changed.
- the first detection unit 21 detects a change in the installation posture of the lighting device 2 (S21). That is, the first detection unit 21 detects a change in the installation posture when the lighting device 2, which has been placed in the first posture as the predetermined installation posture, changes to the second posture different from the first posture. As a matter of course, the lighting device 2 is in an activated state.
- the first detection unit 21 detects the amount of rotation according to the change in the installation posture of the lighting device 2 (S22).
- the first detection unit 21 outputs information indicating the detected amount of rotation of the illumination device 2 to the control unit 12 .
- the control unit 12 stores the acquired information indicating the amount of rotation of the lighting device 2 in the storage unit 15 .
- control unit 12 resets the polar coordinates in the lighting device 2 based on the information indicating the amount of rotation (S23), and updates the light emission pattern to the reset light emission pattern (S24).
- the control unit 12 causes the light source 11 in the second posture (after resetting) corresponding to the light source 11 in the first posture (before resetting) to Polar coordinates in the illumination device 2 are reset by performing affine transformation.
- the first light source is turned off as shown in c and d of FIG.
- the control unit 12 changes the light source 11 that emits light on the lighting device 2, so that when the lighting device 2 is observed from a fixed point, the light emitting position is substantially changed.
- a plurality of light sources 11 are controlled so that . Thereby, the illumination device 2 can continue to emit light in the same direction (direction).
- the light emission pattern when the lighting device 2 is observed from a fixed point, the light emission pattern can be maintained (the light emission pattern does not substantially change) even if the installation posture of the lighting device 2 is changed. .
- FIG. 10 is a diagram showing a reset light emission pattern when the installation attitude is changed when the lighting device 2 according to the embodiment is entirely illuminated.
- the frame A1 of the two-dot chain line when observed from a fixed point, the frame A1 of the two-dot chain line emits light in blue as indicated by hatching with diagonal lines, and the frame A2 of the two-dot chain line is hatched in a grid pattern. Green light is emitted as shown, and red light is emitted as indicated by dot-like hatching in the frame of A3 of the two-dot chain line.
- the lighting device 2 in FIG. 10A changes its installation posture by rotating clockwise as shown in FIG. 10B
- the lighting device 2 in FIG. emits blue light as indicated by hatching with oblique lines
- the frame of A2 with a two-dot chain line emits light in green as indicated with hatching in a lattice pattern
- the frame of A3 with a two-dot chain line emits light as indicated by hatching in a dot pattern. It emits red light.
- the lighting device 2 can realize, for example, the following light emission pattern.
- FIG. 11 is a diagram showing Example 1 of the light emission pattern reset when the installation posture of the lighting device 2 according to the embodiment is changed.
- FIGS. 11a and 11b illustrate the illumination device 2 mounted on a vertically elongated stand installed on the floor.
- the illumination device 2 is provided on a stand so as to be rotatable about a vertical axis.
- control unit 12 When the control unit 12 acquires the information indicating the rotation direction of the illumination device 2 detected by the first detection unit 21, the control unit 12 changes the light emission pattern of the illumination device 2 according to the rotation direction indicated by the information. to control the light source 11 of the
- this lighting device 2 when rotated, it emits light with a higher color temperature than neutral white.
- the illumination device 2 may emit light at a color temperature lower than that of incandescent light when rotated clockwise, and emit light at a color temperature higher than neutral white when rotated counterclockwise.
- daylight white light is emitted at a color temperature of about 6500K
- warm white light is emitted at a color temperature of about 2700K.
- the color temperatures exemplified in the present embodiment are merely examples, and are not limited to the numerical values, incandescent color, and daylight white in the present embodiment, and warm white and daylight colors may be used.
- the controller 12 may control the plurality of light sources 11 so that the color temperature gradually increases or decreases as the rotation angle of the illumination device 2 increases.
- FIG. 12 is a diagram showing Example 2 of the light emission pattern reset when the installation posture of the lighting device 2 according to the embodiment is changed.
- FIGS. 12a and 12b illustrate the lighting device 2 attached to a stand extending in a direction (horizontal direction) perpendicular to the wall surface extending in the vertical direction.
- the illumination device 2 is provided rotatably around a horizontal axis.
- control unit 12 acquires information indicating the rotation direction of the illumination device 2 detected by the first detection unit 21, the control unit 12 changes the light emission pattern of the illumination device 2 according to the rotation direction indicated by the information.
- a plurality of light sources 11 are controlled as follows.
- light distribution is controlled so that when it is rotated counterclockwise when viewed facing the lighting device 2 as indicated by an arrow in FIG.
- Light distribution is controlled so that when it is rotated clockwise as viewed from the stand side as indicated by an arrow b in FIG.
- the illumination device 2 rotates clockwise as viewed facing the illumination device 2
- the light distribution is controlled so as to have a narrow-angle light distribution, and when viewed facing the illumination device 2, the light distribution rotates counterclockwise.
- the light distribution may be controlled so that when it rotates, it becomes a wide-angle light distribution.
- the light distribution control may be realized by a driving mechanism that changes the relative distance between the light emitting element 11a and the translucent portion 6 and the control portion 12 that controls the driving mechanism.
- light emission pattern example 1 may be combined, and light emission pattern examples 1 and 2 may be executed at the same time.
- the color temperature of the light emitted by the plurality of light sources 11 may be changed by rotating it clockwise or counterclockwise about the vertical direction. Further, by rotating clockwise or counterclockwise about the horizontal direction, the light distribution may be controlled so as to obtain a narrow-angle light distribution or a wide-angle light distribution.
- FIG. 13 is a diagram showing Example 3 of the light emission pattern reset when the installation posture of the lighting device 2 according to the embodiment is changed.
- the lighting device 2 in FIG. 13 is placed on a desk, floor, or the like, and is provided so as to be freely rotatable. Numbers are assigned to the surface of the housing 5 of the lighting device 2 . Also, in the illumination device 2 of the light emission pattern example 3, the light sources 11 are arranged on all of the twenty surfaces. As described above, in the present embodiment, since lighting device 2 is an icosahedron, according to the numbers assigned to the uppermost plane (plane perpendicular to the vertical direction) of housing 5, It is assumed that the light emission pattern is changed. The light emission patterns corresponding to the 20 surfaces on a one-to-one basis are stored in the storage unit 15 in advance. Based on the vertical direction and the set origin, the control unit 12 estimates the uppermost plane from the installation posture of the lighting device 2 . The control unit 12 controls the plurality of light sources 11 so as to emit light according to the light emission pattern associated with the uppermost surface.
- NO. 2 illustrates the light emission pattern when the surface to which 2 is placed is positioned at the top.
- the light source 11 located on the vertically upper side emits darker red light
- the light source 11 located on the vertically lower side emits light that changes from red to yellow.
- NO. 16 exemplifies the light emission pattern in the case where the surface to which 16 is shaken is positioned at the top. NO. In 16, the light source 11 located on the vertically upper side emits blue light, and the light source 11 located on the vertically lower side emits green light.
- FIG. 14 is a diagram showing Example 4 of the light emission pattern reset when the installation posture of the lighting device 2 according to the embodiment is changed.
- the lighting device 2 in FIG. 14 is also placed on a desk, floor, or the like, and is provided so as to be freely rotatable.
- FIG. 14a illustrates how light is emitted in the first posture.
- FIG. 14b illustrates how light is emitted in a randomly selected light emission pattern when the first posture is displaced to the second posture.
- control unit 12 When the control unit 12 acquires the information indicating the rotation of the lighting device 2 detected by the first detection unit 21, the control unit 12 selects one of the plurality of light emission patterns stored in the storage unit 15 according to the rotation direction indicated by the information. , a light emission pattern is selected at random.
- the controller 12 controls the plurality of light sources 11 to emit light according to the selected light emission pattern.
- the light emission patterns corresponding to the divided numbers are associated with the surface located at the top of the housing 5, but in the light emission pattern example 4, there is no such connection. .
- the light emission pattern example 4 even if the first posture is displaced to the second posture and then the second posture is returned to the first posture, the light emission pattern is the first posture before the displacement and the light emission pattern is the first posture after the displacement. may differ from
- the lighting device 2 does not necessarily emit light in the same light emission pattern even if the direction and installation posture of the lighting device 2 are returned to the same. .
- the illumination device 2 of the present embodiment includes the plurality of light sources 11 that illuminate in all directions, the first detection unit 21 that detects the installation posture of the illumination device 2, and the first detection unit 21 that detects and a control unit 12 that changes the light emission pattern of each of the plurality of light sources 11 in accordance with the installation posture of the lighting device 2 .
- the light emission pattern of each of the plurality of light sources 11 so as to follow changes in the installation posture of the lighting device 2 .
- the lighting device 2 is observed from a fixed point, even if the installation posture of the lighting device 2 changes, the light emission pattern can be prevented from changing.
- the light emission pattern can be automatically changed according to the installation posture.
- the light emission pattern when observing the lighting device from a fixed point changes, so it is necessary to reset the light emission pattern of the lighting device.
- the user is less likely to need to reset the light emission pattern in response to a change in the posture of the lighting device 2, and thus the labor required for the setting is less likely to increase.
- this lighting device 2 it is possible to easily change the setting of the light emission pattern of the lighting device 2 that can illuminate in all directions.
- the user is less likely to perceive a change in the light emission pattern when observing the lighting device 2 from a fixed point.
- the lighting control method of the present embodiment detects the installation posture of the lighting device 2, changes the light emission pattern of each of the plurality of light sources 11 capable of illuminating in all directions according to the installation posture, and controls the illumination. so that the light emission pattern when the device 2 emits light in the first posture and the light emission pattern when the lighting device 2 emits light in the second posture, which is an installation posture different from the first posture, maintain the same light emission pattern;
- Each of the plurality of light sources 11 is controlled.
- This lighting control method also has the same effects as described above.
- the program of the present embodiment causes a computer to execute a lighting control method.
- This program also has the same effects as above.
- control unit 12 controls the light emission pattern when the lighting device 2 emits light in the first posture, and the lighting device 2 in the second posture, which is the installation posture different from the first posture.
- Each of the plurality of light sources 11 is controlled so as to maintain a light emission pattern similar to the light emission pattern when light is emitted in the posture.
- the illumination device 2 illuminates the irradiation surface with a predetermined light emission pattern, even if the installation posture of the illumination device 2 changes unexpectedly, before and after the installation posture changes. , the emission pattern irradiated on the irradiation surface can be maintained substantially the same.
- the lighting device 2 of the present embodiment includes a second detection section 22 that detects the rotational acceleration of the lighting device 2 . Then, the control unit 12 predicts the amount of change in the light emission pattern of each of the plurality of light sources 11 according to the rotational acceleration detected by the second detection unit 22 and controls the light emission pattern of each of the plurality of light sources 11 .
- the control of the light emission patterns of multiple light sources may be delayed.
- the amount of rotation can be predicted (estimated) from the rotational acceleration of the lighting device 2 and the time required to calculate the rotational acceleration.
- the lighting device 2 of the present embodiment also includes a second detection unit 22 that detects the north, south, east, west, and top and bottom directions of the lighting device 2 . Then, the control unit 12 sets a preset initial value according to the orientation of the lighting device 2 detected by the second detection unit 22 .
- the initial setting of the lighting device 2 can be properly set regardless of the installation posture and orientation of the lighting device 2 .
- the second detection unit 22 is at least one of a gyro sensor and an electronic compass.
- the orientation and installation attitude of the lighting device 2 can be accurately grasped. Therefore, even if the installation posture of the lighting device 2 is changed, the light emission pattern set for the lighting device 2 can be maintained.
- the second detection unit 22 is an electronic compass, even if the illumination device 2 is turned off, the origin set in the initial settings can be kept stored. Further, even if the illumination device 2 is turned off and moved to another place, the origin of the illumination device 2 does not have to be set again because the orientation of the illumination device is stored. For this reason, it becomes difficult to increase the processing load due to the initial setting of the lighting device 2 and the troublesome setting by the user.
- the lighting device 2 of the present embodiment also includes a storage unit 15 that stores the light emission patterns of the plurality of light sources 11 .
- the control unit 12 then executes the light emission pattern stored in the storage unit 15 .
- each unit included in the lighting device, lighting control method, and program according to the above embodiments is typically implemented as an LSI, which is an integrated circuit. These may be made into one chip individually, or may be made into one chip so as to include part or all of them.
- circuit integration is not limited to LSIs, and may be realized with dedicated circuits or general-purpose processors.
- An FPGA Field Programmable Gate Array
- a reconfigurable processor that can reconfigure the connections and settings of the circuit cells inside the LSI may be used.
- each component may be implemented by dedicated hardware or by executing a software program suitable for each component.
- Each component may be implemented by a program execution unit such as a CPU or processor reading and executing a software program recorded in a storage medium such as a hard disk or semiconductor memory.
- the division of functional blocks in the block diagram is an example, and a plurality of functional blocks can be realized as one functional block, one functional block can be divided into a plurality of functional blocks, and some functions can be moved to other functional blocks.
- single hardware or software may process the functions of a plurality of functional blocks having similar functions in parallel or in a time-sharing manner.
- each step in the flowchart is executed is for illustrative purposes in order to specifically describe the present disclosure, and orders other than the above may be used. Also, some of the above steps may be executed concurrently (in parallel) with other steps.
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Abstract
Description
<構成:照明システム1>
本実施の形態に係る照明装置2及び照明システム1の構成について説明する。
照明装置2は、例えば建物の室内の天井、床、壁及び机等に配置される。照明装置2の外形は、例えば、略球状又は略多面体状である。照明装置2は、複数の光源11を有する。複数の光源11は、照明装置2の全体にわたって配置される。このため、照明装置2は、複数の光源11により全方位に光を照射可能であるため、全方位を照明することができる。具体的には、照明装置2は、対応する方向を照明する複数の光源11により360°の全方位に光を照射(照明)する照明器具である。360°の全方位とは、照明装置2の中心から発光面2aの任意の点に向かう全ての方位のことである。
端末装置20は、ユーザの操作入力を受け付けることで、照明装置2の姿勢が変化しても発光パターンが維持されるように、照明装置2の複数の光源11のうちからの原点となる光源11を設定することができる。
次に、本実施の形態に係る照明装置2、照明制御方法及びプログラムの処理動作について説明する。
本動作例では、照明装置2が所定の設置姿勢で配置された後に、ユーザが照明装置2の初期設定をする場合について、図5~図7を用いて説明する。
本動作例では、照明装置2の設置姿勢が変化した場合について、図8及び図9を用いて説明する。
この照明装置2では、例えば以下のような発光パターンを実現することができる。
図11は、実施の形態に係る照明装置2の設置姿勢が変化したときの再設定した発光パターン例1を示す図である。
図12は、実施の形態に係る照明装置2の設置姿勢が変化したときの再設定した発光パターン例2を示す図である。
図13は、実施の形態に係る照明装置2の設置姿勢が変化したときの再設定した発光パターン例3を示す図である。
図14は、実施の形態に係る照明装置2の設置姿勢が変化したときの再設定した発光パターン例4を示す図である。
次に、本実施の形態における照明装置2、照明制御方法及びプログラムの作用効果について説明する。
以上、本開示に係る照明装置、照明制御方法及びプログラムについて、上記各実施の形態に基づいて説明したが、本開示は、これらの実施の形態に限定されるものではない。本開示の趣旨を逸脱しない限り、当業者が思い付く各種変形を実施の形態に施したものも、本開示の範囲に含まれてもよい。
11 光源
12 制御部
15 記憶部
21 第1検出部(検出部)
22 第2検出部(検出部)
Claims (8)
- 全方位を照明する複数の光源と、
当該照明装置の設置姿勢を検出する検出部と、
前記検出部が検出した当該照明装置の設置姿勢に応じて、前記複数の光源のそれぞれの発光パターンを変化させる制御部とを備える
照明装置。 - 前記制御部は、当該照明装置が第1姿勢で発光したときの発光パターンと、当該照明装置が前記第1姿勢と異なる設置姿勢である第2姿勢で発光したときの発光パターンとが同様の発光パターンを維持するように、前記複数の光源のそれぞれを制御する
請求項1に記載の照明装置。 - 当該照明装置の回転加速度を検出する検出部を備え、
前記制御部は、当該検出部が検出した前記回転加速度に応じて、前記複数の光源のそれぞれの発光パターンの変化量を予測し、前記複数の光源のそれぞれの発光パターンを制御する
請求項1又は2に記載の照明装置。 - 当該照明装置における東西南北及び上下のそれぞれの方位を検出する検出部を備え、
前記制御部は、当該検出部が検出した当該照明装置の方位に応じて、予め設定された初期値を設定する
請求項1~3のいずれか1項に記載の照明装置。 - 前記検出部は、ジャイロセンサ及び電子コンパスのうちの少なくとも一方である
請求項1~4のいずれか1項に記載の照明装置。 - 前記複数の光源のそれぞれの発光パターンを記憶する記憶部を備え、
前記制御部は、前記記憶部に記憶されている発光パターンを実行する
請求項1~5のいずれか1項に記載の照明装置。 - 照明装置の設置姿勢を検出し、
全方位を照明することが可能な複数の光源のそれぞれの発光パターンを設置姿勢に応じて変化させ、
前記照明装置が第1姿勢で発光したときの発光パターンと、前記照明装置が前記第1姿勢と異なる設置姿勢である第2姿勢で発光したときの発光パターンとが同様の発光パターンを維持するように、前記複数の光源のそれぞれを制御する
照明制御方法。 - 請求項7に記載の照明制御方法をコンピュータに実行させるための
プログラム。
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US18/555,677 US20240125462A1 (en) | 2021-04-27 | 2022-04-15 | Lighting device, lighting control method, and recording medium |
CN202280029774.XA CN117223397A (zh) | 2021-04-27 | 2022-04-15 | 照明装置、照明控制方法以及程序 |
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