JP6268889B2 - Lighting device - Google Patents

Description

  The present invention relates to an illumination device that illuminates a space area such as a room space.

  Patent Documents 1 to 3 disclose a technique of using a projection-type (projection-type) video display device as illumination as well as video display. Patent Document 1 discloses that a projection TV is installed on a ceiling and a television screen is used for video display or used as illumination. Patent Document 2 discloses a projector that is configured to be detachable from a light bulb socket and obtains electric power via the light bulb socket. Patent Document 3 discloses a projector that activates light source means at a set wake-up time so that a user sleeping in a bedroom is awakened by light irradiation, and irradiates the person to wake up with light. As an invention different from these, Patent Document 4 discloses a night light in which light emitting diodes are arranged so as to project upward light so that the emitted light does not become too bright.

JP-A-63-125063 JP 2006-227143 A Japanese Patent No. 4823723 JP 2003-308710 A

In the techniques disclosed in Patent Document 1 to Patent Document 4, in addition to illuminating the spatial region by diffusing the illumination light, the irradiating light often wraps around, so that the wide area has almost uniform brightness. Can be illuminated. However, in the techniques disclosed in Patent Document 1 to Patent Document 4, for example, in addition to locally illuminating a specific place in the space area illuminated by the lighting device, other places in the space area are different from each other. The illumination method cannot be specified for each place in the spatial region, such as locally illuminating with light. In addition, installing a plurality of illumination devices that illuminate with different illumination lights in the same space region may not be practical in view of securing the installation location and cost.
The present invention has been made in view of the above-described circumstances, and one of its purposes is to vary the illumination method for each place in the space area illuminated by the illumination device.

In order to achieve the above object, an illumination device according to the present invention is an illumination device that illuminates a predetermined spatial region, and a light source for generating illumination light and light emitted from the light source are based on image information. A light modulation element that modulates the light, a setting unit that sets image information corresponding to the spatial region, and the light modulation element that drives the light modulation element to modulate the emitted light based on the image information set by the setting unit And a projection lens that projects the light modulated by the light modulation element as illumination light onto a predetermined surface constituting the spatial region.
According to the present invention, the light modulation element is driven based on the image information set corresponding to the spatial region, and the illumination light is generated by modulating the light emitted from the light source. Different lighting methods can be used for different locations.

In the illumination device according to the present invention, the setting unit sets the image information in which brightness or color is specified for each illumination area of the plurality of illumination areas onto which the illumination light is projected on the predetermined surface. May be.
According to the present invention, it is possible to specify brightness or color for each illumination area on a predetermined surface constituting the space area.

The lighting device according to the present invention includes a detection unit that detects occurrence of a predetermined event in the spatial region, and the setting unit corresponds to the spatial region when the occurrence of the event is detected by the detection unit. The image information thus obtained may be changed.
According to the present invention, the illumination method can be varied depending on whether or not a predetermined event has occurred in the spatial region.

In the lighting device according to the present invention, one of the first mode that operates by receiving power supply from a commercial power source and the second mode that operates by receiving power supply from the battery is selected, and A power control unit that performs power control, and includes a power control unit that changes to the selection of the second mode when the detection unit detects the occurrence of the event during the selection of the first mode. It may be.
According to the present invention, it is possible to continuously illuminate a spatial region even when an event occurs in which power supply from a commercial power supply cannot be received.

In the illumination device according to the present invention, the total luminous flux of the illumination light may be 5 lumens or more.
According to the present invention, when the spatial region is illuminated with illumination light having a total luminous flux of 5 lumens or more, the illumination method can be varied for each location in the spatial region.

In the lighting device according to the present invention, the lighting device is installed so as to illuminate the space region surrounded by the ceiling, the side wall surface, and the floor surface, and the light source, the light modulation element, and the projection lens are provided from the ceiling or the side wall surface. You may make it arrange | position so that the said illumination light may be inject | emitted in the direction of the said floor surface.
According to this invention, the illumination method can be varied for each place where the user walks by illuminating toward the floor of the room space.

The illumination device according to the present invention may include a communication unit that communicates with an external device, and the setting unit may set the image information received by the communication unit to image information corresponding to the space area.
According to the present invention, it is possible to set image information received from an external device as image information corresponding to a spatial region, and to vary the illumination method for each place in the spatial region.

The figure which shows the structure of the illuminating device which concerns on one Embodiment of this invention. Explanatory drawing of the optical system with which the illuminating device which concerns on the same embodiment is provided. Explanatory drawing of the structure of the pixel of the electro-optical panel with which the illuminating device which concerns on the embodiment is provided. The block diagram which shows the electric constitution of the illuminating device which concerns on the same embodiment. The flowchart which shows the flow of the process performed with the illuminating device which concerns on the embodiment. Explanatory drawing of the room space where the illuminating device concerning the embodiment is installed. The figure explaining the room space illuminated by the illuminating device which concerns on the embodiment. The flowchart which shows the flow of the process performed with the illuminating device which concerns on the embodiment. The figure explaining the room space illuminated by the illuminating device which concerns on the embodiment.

Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 is a diagram showing a configuration of an illumination device 10 according to an embodiment of the present invention. FIG. 1A shows an external configuration of the illumination device 10. FIG. 1B shows a room space S in which the lighting device 10 is installed.
As shown to Fig.1 (a), the illuminating device 10 is the external appearance structure equivalent to the general purpose nightlight used in room spaces, such as a living room, and is a light bulb shape here. Here, the lighting device 10 is used as a night light, and illuminates the room space S while a person in the room space S is sleeping.
The illumination device 10 includes a base 10A for receiving power from a commercial power source. The base 10A is a socket mounting portion that can be attached to and detached from a general-purpose light bulb socket. As illustrated in FIG. 1B, the room space S is a space area having, for example, a cubic shape or a rectangular parallelepiped shape surrounded by the ceiling C, the side wall portion W, and the floor portion F. The lighting device 10 is installed on the ceiling C by attaching the base 10 </ b> A to a light bulb socket (not shown) provided on the ceiling C. In this case, the lighting device 10 emits illumination light in the direction of the floor surface F as viewed from the ceiling C.

FIG. 2 is a diagram illustrating an optical system provided in the illumination device 10. As shown in FIG. 2, the illumination device 10 includes a light source 11, an electro-optical panel 12, and a projection lens 13. FIG. 3 is a diagram illustrating a configuration of a pixel (a pixel 100 described later) included in the electro-optical panel 12.
The light source 11 is a light source for generating illumination light. Here, the light source 11 is a light emitting diode (LED) that emits white light. The total luminous flux of the light emitted from the illumination device 10 is, for example, 5 lumens or more. The size of the total luminous flux is an example, and may be, for example, the same size as a general-purpose nightlight.

The electro-optical panel 12 is a transmissive liquid crystal panel on which light emitted from the light source 11 enters. As shown in FIG. 3, the electro-optical panel 12 is a light modulator in which pixels 100 as light modulation elements are arranged in a matrix in the column direction and the row direction. Each of the pixels 100 modulates illumination light emitted from the light source 11 based on illumination information (that is, spatial modulation). Each of the pixels 100 includes a sub pixel 100R corresponding to a red (R) color, a sub pixel 100G corresponding to a green (G) color, and a sub pixel 100B corresponding to a blue (B) color. The illumination information is image information in which the gradation (brightness) of each color component of the three primary colors of R, G, and B is specified for each pixel 100. The light that passes through each of the subpixels 100R, 100G, and 100B is colored by a color filter provided in each subpixel.
A condensing optical system used in a general-purpose projector may be arranged between the light source 11 and the electro-optical panel 12.

  The projection lens 13 includes a convex lens, for example, and projects light modulated by the pixels 100 of the electro-optical panel 12 onto a predetermined surface constituting the room space S as illumination light. For example, the projection lens 13 projects illumination light on the floor surface F constituting the room space S or an object such as furniture placed on the floor surface F.

The illumination device 10 projects illumination light, for example, in the illumination target region T illustrated in FIG. The illumination target area T is, for example, an area in a range equivalent to the floor surface F, but may be an area wider or narrower than the floor surface F.
In the example illustrated in FIG. 2, the illumination target area T includes illumination areas T1, T2, T3, and T4 and a non-illumination area Tb. The illumination device 10 can vary the brightness and color in each of the illumination areas T1, T2, T3, and T4 and the non-illumination area Tb. As will be described in detail later, the illumination device 10 modulates the light emitted from the light source 11 by the pixels 100 of the electro-optical panel 12. Here, the illumination areas T1, T2, T3, and T4 are areas where the projection lens 13 projects illumination light, that is, areas where the illumination light of the illumination device 10 reaches. The non-illumination region Tb is a region where the illumination light in the illumination target region T is not projected.
From the above, it can be said that the illumination information is image information in which brightness and color are designated for each illumination area in the illumination target area T.

FIG. 4 is a block diagram showing an electrical configuration of the illumination device 10.
The control unit 101 of the lighting device 10 includes a microcomputer having a CPU (Central Processing Unit), a ROM (Read Only Memory), and a RAM (Random Access Memory), and controls each unit of the lighting device 10. The drive unit 102 includes a drive circuit that drives the pixels 100 of the electro-optical panel 12. The drive unit 102 drives the pixel 100 so as to obtain a gradation specified for each pixel 100 by the illumination information supplied from the control unit 101. Here, the drive unit 102 drives the pixels 100 of the electro-optical panel 12 by line-sequential driving, and defines the transmittance (relative transmittance) for each pixel 100. The driving of the pixels 100 of the electro-optical panel 12 performed by the driving unit 102 may be performed by the same method as driving of a liquid crystal panel using a known color filter.

  The storage unit 103 is a storage device such as a flash memory, and stores illumination information. In the example illustrated in FIG. 4, the storage unit 103 stores illumination information a and illumination information b. The lighting information a is set to be used when the lighting device 10 performs a normal operation. The illumination information b is set to be used when a predetermined event occurs in the room space S. The illumination information a and the illumination information b are illumination information for forming different images on the electro-optical panel 12, that is, illumination information for illuminating the room space S with different illumination lights. Details of the illumination information a and the illumination information b will be described later.

  The communication unit 104 is an interface for communicating with an external device (here, wireless communication). The communication unit 104 receives illumination information from an information processing apparatus such as a personal computer or a smartphone (not shown). The control unit 101 stores the illumination information received by the communication unit 104 in the storage unit 103.

  The power control unit 105 performs power control for supplying power for operating each unit of the lighting device 10. Specifically, the power control unit 105 is one of a first mode that operates by receiving power from a commercial power source via the base 10A and a second mode that operates by receiving power from the battery 106. And control the power according to the selected mode. The power supply control unit 105 selects the first mode using commercial power as a standard (default), and when the control unit 101 instructs to change the mode selection, selects the second mode using the battery 106. To change.

  The battery 106 is a battery (built-in battery) built in the lighting device 10. The battery 106 may be a rechargeable secondary battery. The battery 106 may be a battery (for example, a dry battery) that can be attached to and detached from the lighting device 10.

  The sensor unit 107 is a sensor that detects the occurrence of a predetermined event in the room space S. Here, the sensor unit 107 includes a sensor that detects an abnormality that has occurred in the room space S, and detects, for example, a disaster (fire and earthquake), a power failure (interruption of power supply from a commercial power supply), and a gas leak. The specific configuration of each sensor constituting the sensor unit 107 is not particularly limited, and a known sensor may be used. For example, the sensor unit 107 includes a microphone, and detects the occurrence of a fire or a gas leak by collecting a predetermined notification sound generated by the fire alarm or the gas leak alarm with the microphone. The sensor unit 107 includes a sensor that detects vibration, and detects the occurrence of an earthquake using the vibration sensor. Moreover, the sensor part 107 detects generation | occurrence | production of a power failure using a power failure detector.

Next, a functional configuration realized by the control unit 101 of the lighting apparatus 10 will be described. As shown in FIG. 4, the control unit 101 realizes functions corresponding to the illumination information setting unit 101A and the event occurrence detection unit 101B.
The illumination information setting unit 101A (an example of a setting unit) sets illumination information corresponding to a space area (here, the room space S) illuminated by the illumination device 10. The illumination information setting unit 101A stores the illumination information received by the communication unit 104 in the storage unit 103, and sets illumination information used for generating illumination light.
Based on the illumination information set by the illumination information setting unit 101A, the driving unit 102 drives the pixels 100 of the electro-optical panel 12 so as to form an image represented by the illumination information on the electro-optical panel 12.

  The event occurrence detection unit 101B (an example of a detection unit) detects the occurrence of a predetermined event in the room space S. Here, the event occurrence detection unit 101 </ b> B detects an abnormality that has occurred in the room space S based on the detection result of the sensor unit 107. The illumination information setting unit 101A changes the illumination information corresponding to the room space S when the occurrence of abnormality is detected by the event occurrence detection unit 101B. Specifically, the illumination information setting unit 101A changes the setting to the illumination information b when the occurrence of abnormality is detected by the event occurrence detection unit 101B during the setting of the illumination information a.

  FIG. 5 is a flowchart showing a flow of processing executed by the lighting device 10 based on the lighting information. FIG. 6 is a plan view of the room space S from the ceiling C side toward the floor surface F. FIG. As shown in FIG. 6, a bed 1, a pillow 2 on the bed 1, a slipper 3, and a table (bedside table) 4 are arranged on the floor surface F of the room space S. The room space S is provided with a door 5 serving as an entrance / exit. Hereinafter, operation | movement of the illuminating device 10 when illuminating the room space S shown in FIG. 6 is demonstrated.

First, the control part 101 of the illuminating device 10 judges whether illumination information is set (step S1). For example, when the instruction data for instructing setting of illumination information is received from the external information processing apparatus by the communication unit 104, the control unit 101 determines “YES” in the process of step S1. Here, it is assumed that the control unit 101 receives an instruction for setting the illumination information a. In this case, the control unit 101 stores the illumination information a in the storage unit 103, and sets the illumination information corresponding to the room space S to the illumination information a (step S2).
In addition, when the illumination information b is received, the control unit 101 stores the illumination information b in the storage unit 103 as illumination information to be used when an abnormality occurs in the room space S.

By the way, the information processing apparatus that transmits the illumination information to the illumination apparatus 10 has a function of generating the illumination information. For example, the information processing apparatus executes a predetermined application program to display a predetermined setting screen. This setting screen includes, for example, an image simulating a floor surface of a room space. A user of the information processing apparatus performs an operation of designating the position and size of the illumination area, the brightness and the color (chromaticity) for each illumination area, via the setting screen. The information processing device generates lighting information according to an operation performed by the user and transmits the lighting information to the lighting device 10.
In addition, when the illuminating device 10 has a photographing device, the room space S may be photographed using the photographing device and displayed on the setting screen of the information processing device.
There is no particular limitation on a specific method for generating illumination information such as a setting screen displayed by the information processing apparatus when generating the illumination information and an operation method of the information processing apparatus.

  Next, the control unit 101 determines whether to start illumination (step S3). When the control unit 101 determines to start lighting, for example, by performing an operation of turning on the power of the lighting device 10 (step S3; YES), the control unit 101 turns on the light source 11 to emit light (step S4). Next, the control unit 101 drives the pixel 100 of the electro-optical panel 12 based on the illumination information a set in the process of step S2 (step S5). In response to this driving, the pixel 100 of the electro-optical panel 12 modulates the light emitted from the light source 11. The projection lens 13 emits light modulated by the pixels 100 of the electro-optical panel 12 as illumination light in the direction of the floor surface F of the room space S, and is on the floor surface F or an object placed on the floor surface F. Project.

FIG. 7 is a diagram illustrating the room space S illuminated based on the illumination information a.
As shown in FIG. 7, a non-illumination area Tb is formed at the position of the pillow 2 arranged in the room space S, an illumination area T2 is formed at the position of the slipper 3, and an illumination area T3 is formed at the position of the table 4. An illumination area T4 is formed at the position of the door 5, and an illumination area T1 is formed at the other illumination areas. For example, the illumination area T1 is designated to be illuminated with green or turquoise illumination light. This is because even if green or turquoise light is applied to the eyes of a person sleeping on the bed 1 due to reflection or the like, the light does not easily pass through the human eyelid and does not disturb the person's sleep.

The illumination area T2 is designated to be illuminated with illumination light brighter than the illumination area T1, for example, so that the position of the slipper 3 can be easily grasped. The illumination area T3 is designated to illuminate with illumination light brighter than the illumination area T1, for example, so that an object placed on the table 4 can be easily grasped. The illumination area T4 is designated to illuminate with illumination light brighter than the illumination area T1, for example, so that the position of the door 5 can be easily grasped. On the other hand, since the illumination light of the illumination device 10 does not reach the non-illuminated region Tb, the periphery of the pillow 2 is kept in a dark environment.
Therefore, it can be said that the illumination information used for generating the illumination light is information for generating illumination light unique to the space area set for the space area where the illumination device 10 is installed.
In the example illustrated in FIG. 7, the illumination target area T includes four illumination areas T1 to T4 at different positions, but may include three or less or five or more. Further, the size, shape, and position of each illumination area in the illumination target area T are not limited to the example described in FIG.

Returning to the description of FIG.
The control unit 101 of the illumination device 10 determines whether to stop the illumination after starting the driving of the pixel 100 of the electro-optical panel 12 in the process of step S5 (step S6). The controller 101 continues to drive the pixels 100 of the electro-optical panel 12 in step S5 until it is determined to stop the illumination (step S6; NO). Then, when the control unit 101 determines to stop the illumination by performing an operation to turn off the power of the illumination device 10 (step S6: YES), the control unit 101 turns off the light source 11 and the pixel 100 of the electro-optical panel 12. End driving.
When the lighting device 10 operates after the next time, the control unit 101 executes the processing described with reference to FIG. In this case, the control unit 101 may generate illumination light using the illumination information a already stored in the storage unit 103. In this case, the control unit 101 determines “NO” in the process of step S1, and the process after step S4 Perform steps.
Furthermore, the illumination device 10 performs the following processing based on the detection result of the sensor unit 107 in parallel with the processing described in FIG.

FIG. 8 is a flowchart showing a flow of processing executed by the illumination device 10 based on the detection result of the sensor unit 107.
Based on the detection result of the sensor unit 107, the control unit 101 of the lighting device 10 determines whether or not an abnormality has been detected in the room space S (step S11). When the control unit 101 determines that the occurrence of an abnormality has been detected (step S11; YES), the power supply control unit 105 changes the selection from the first mode to the second mode and switches the operation to the battery 106. Power supply control is performed (step S12). In the process of step S <b> 12, the control unit 101 instructs the power supply control unit 105 to change the power supply from the commercial power supply to the battery 106. When an abnormality occurs in the room space S, the supply of electric power from the commercial power supply may be stopped, so the control unit 101 performs control to switch the power supply.
In the process of step S12, the control unit 101 may change whether or not the mode related to power control is changed according to the type of abnormality detected. For example, the control unit 101 switches the power source to the battery 106 when a disaster such as a fire or an earthquake or a power failure is detected, and continues to use the commercial power source when a gas leak is detected.

  Next, the control unit 101 changes the illumination information corresponding to the room space S from the illumination information a to the illumination information b (step S13). And the control part 101 drives the pixel 100 of the electro-optical panel 12 based on the illumination information b (step S14). In response to this driving, the pixel 100 of the electro-optical panel 12 modulates the light emitted from the light source 11. The projection lens 13 emits light modulated by the pixels 100 of the electro-optical panel 12 as illumination light in the direction of the floor surface F of the room space S, and is on the floor surface F or an object placed on the floor surface F. Project.

FIG. 9 is a diagram illustrating the room space S illuminated based on the illumination information b.
In the example illustrated in FIG. 9, as in the case of the illumination information a, the illumination device 10 forms the illumination region T4 and the non-illumination region Tb from the illumination region T1, and in addition, changes the direction of the door 5 when viewed from the bed 1. An arrow-shaped illumination area Ti facing is formed on the floor surface F. This is because when some abnormality occurs in the room space S, a person in the room space S may need to evacuate outside.
Here, the lighting device 10 illuminates a part of the illumination area with the illumination information a and the illumination information b, but the illumination apparatus 10 is not limited to this example, and even if all the illumination areas are different. Good.

Returning to the description of FIG.
The control unit 101 of the illumination device 10 determines whether to stop the illumination based on the illumination information b after starting the driving of the pixel 100 of the electro-optical panel 12 in the process of step S14 (step S15). The controller 101 continues to drive the pixels 100 of the electro-optical panel 12 in step S14 until it is determined that the illumination is stopped (step S15; NO). Then, if the control unit 101 determines that the illumination based on the illumination information b is to be stopped because the sensor unit 107 no longer detects the occurrence of abnormality (step S15: YES), the control unit 101 stops the illumination based on the illumination information b. In this case, the control unit 101 may return to the illumination based on the illumination information a, or may turn off the light source 11 and end driving of the pixels 100 of the electro-optical panel 12.

  The illuminating device 10 of the embodiment described above linearly modulates the light emitted from the light source 11 for generating illumination light by the pixels 100 of the electro-optical panel 12 based on preset illumination information. Generates forward illumination light. Due to the generation of the illumination light, the illumination device 10 irradiates illumination light with individually designated brightness and color for each place in the space region. Therefore, according to the illuminating device 10, even if it is a single light source device, the illumination light peculiar to a space area | region can be produced | generated, and the illumination method can be varied for every place in the said space area | region.

The present invention can be implemented in a form different from the above-described embodiment. Further, the following modifications may be combined as appropriate.
In the embodiment described above, the control unit 101 may detect the occurrence of a disaster other than a fire or an earthquake, or may detect the occurrence of an abnormality other than a power failure or gas leak as an abnormality other than a disaster. That is, the type of event detected by the control unit 101 is not particularly limited.
In addition, when the communication unit 104 receives a notification signal that notifies the occurrence of an abnormality, the control unit 101 may detect the occurrence of the abnormality based on the notification signal. That is, the event occurrence detection unit 101B may detect the occurrence of an abnormality without using the sensor unit 107.

Moreover, the control part 101 may change the setting of illumination information according to the utilization purpose of the room space S set by the room space S user. The control unit 101 is set with a mode according to the purpose of use of the room space S, such as the sleep mode selected at bedtime described in the above-described embodiment and the theater mode selected when watching a movie. Then, it sets to the illumination information according to the set mode. That is, the illumination device 10 is not limited to use as a nightlight.
Moreover, the control part 101 may change the setting of illumination information according to time, such as time (for example, a user's set time) and seasons.

In the embodiment described above, the control unit 101 sets the illumination information received by the communication unit 104 to the illumination information corresponding to the room space S. Instead, the control unit 101 stores a plurality of predetermined illumination information in the storage unit 103, and any one of the plurality of illumination information is converted into illumination information corresponding to the room space S. It may be set. For example, the lighting device 10 accepts an operation for selecting lighting information and sets the lighting information.
When two or more lighting devices 10 are installed, these two or more lighting devices 10 may generate illumination light based on the same lighting information.

In the embodiment described above, the lighting device 10 is attached to the ceiling C, but may be installed at a place other than the ceiling C, such as the side wall portion W. The lighting device 10 may emit illumination light not only in the direction of the floor surface F but also in the direction of the side wall surface W.
The room space S may be a room space (guest room) such as a hotel instead of a room space (residential room or bedroom) of a house, or a room space of a vehicle such as an airplane or a train. Moreover, the space area which the illuminating device 10 illuminates is not limited to a room space, but may be an outdoor space, for example, and may be a real space area.

The lighting device of the present invention is not limited to a light bulb-shaped lighting device, and may function as a downlight or other lighting device. Moreover, the lighting device of the present invention may be realized by an embedded lighting device.
Moreover, the illuminating device 10 does not need to be provided with the structure which detects generation | occurrence | production of a predetermined event, changes illumination information, and the structure which changes the mode of power supply control.

The lighting device 10 time-divides the frame into a plurality of fields each corresponding to one of the three primary colors of R, G, and B, and forms an image of a color component corresponding to each field. Illumination light may be generated (for example, field sequential driving is performed).
The illumination device 10 may have a configuration including a plurality of electro-optical panels 12 corresponding to the color components of the plurality of color components. In this case, the illumination device 10 combines the illumination light of each color component modulated by the pixels 100 of the plurality of electro-optical panels 12 using means such as a dichroic prism and emits the light from the projection lens 13.
The lighting device 10 does not have to generate illumination light of a plurality of color components. In this case, the illuminating device 10 generates illumination light having the same color in a plurality of illumination areas of the illumination target area T and specifying brightness based on illumination information. Moreover, the illuminating device 10 may specify the color for each illumination amount of the plurality of illumination regions of the illumination target region T based on the illumination information, and generate illumination light.
The light source 11 of the illumination device 10 may not be a light emitting diode, and may be a white light source such as a semiconductor laser or a halogen lamp.
The electro-optical panel 12 may not be a liquid crystal panel, and may include at least a light modulation element that modulates incident light, such as DMD (Digital Mirror Device).

DESCRIPTION OF SYMBOLS 10 ... Illuminating device, 10A ... Base, 100 ... Pixel, 101 ... Control part, 101A ... Illumination information setting part, 101B ... Event generation | occurrence | production detection part, 102 ... Drive part, 103 ... Memory | storage part, 104 ... Communication part, 105 ... Power supply Control part 106 ... Battery 107 ... Sensor part 11 ... Light source 12 ... Electro-optical panel 13 ... Projection lens

Claims (6)

A lighting device for illuminating a room space ,
A light source for generating illumination light;
A light modulation element for modulating light emitted from the light source;
A setting unit for storing illumination information in which brightness and color are specified for a plurality of illumination areas having positions and sizes according to the situation in the room space;
A drive unit that drives the light modulation element so as to modulate the emitted light based on the illumination information set in the setting unit;
An illumination device comprising: a projection lens that projects light modulated by the light modulation element onto a predetermined surface constituting the room space as illumination light. A detection unit for detecting the occurrence of a predetermined event in the room space ;
The setting unit
The lighting device according to claim 1, wherein when the occurrence of the event is detected by the detection unit, the lighting information corresponding to the room space is changed. A power control unit that selects one of a first mode that operates by receiving power from a commercial power source and a second mode that operates by receiving power from a battery, and performs power control of the self-illuminating device. There,
3. The illumination according to claim 2, further comprising: a power supply control unit that changes to the selection of the second mode when the occurrence of the event is detected by the detection unit during the selection of the first mode. apparatus. The illumination device according to any one of claims 1 to 3, wherein the shape of the illumination area is also stored in the setting unit . It is installed to illuminate the room space surrounded by the ceiling, side walls and floor surface,
The light source, the light modulation element, and the projection lens are:
It is arrange | positioned so that the said illumination light may be inject | emitted from the said ceiling or the said side wall surface to the said floor surface. The illuminating device of any one of Claims 1-4 characterized by the above-mentioned. A communication unit that communicates with an external device;
The setting unit
The illumination information received by the communication unit is stored. The illumination device according to any one of claims 1 to 5, wherein the illumination information is stored.

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