JP7223971B2 - Lighting device and lighting system - Google Patents

Description

The present disclosure relates to lighting devices and lighting systems.

2. Description of the Related Art In recent years, lighting devices have appeared that can produce a room interior with light by changing the brightness and color of the light in the room.

As a conventional lighting device, it is connected to multiple lighting fixtures that illuminate the room and controls at least one of the light color and dimming level of the multiple lighting fixtures according to the quality of human speech. A lighting control system is disclosed (see Patent Literature 1).

JP 2015-60828 A

Such a lighting device simply changes the lighting mode in accordance with the quality of a person's voice to change the brightness and color of the light around the person. A conventional lighting device cannot perform lighting based on the presence area of an object such as a person.

Therefore, the present disclosure has been made in view of the above circumstances, and provides a lighting device and a lighting system capable of forming a space produced by light.

To achieve the above object, one aspect of the lighting device according to the present disclosure is a lighting device that irradiates light onto an object, comprising: a first light source that irradiates light; the number of the objects; a detection unit that detects the state of the object including the existing area, and outputs detection information indicating the detected detection result; a controller for controlling the form of the first contour , wherein the controller controls the first contour to be wavy.
In order to achieve the above object, one aspect of a lighting device according to the present disclosure is a lighting device that irradiates light onto an object, comprising: a first light source that irradiates light; the number of the objects; a detection unit that detects a state of the object including an existence area in which the object exists, and outputs detection information indicating the detected detection result; and the first light source irradiates an irradiation surface according to the detection information. a controller for controlling a form of a first contour of light, wherein the controller controls the size of the first contour according to the number of the objects, the first contour is annular, and the The detection unit detects a first distance between the first light source and the object, and the control unit sets the diameter of the first contour to a first diameter when the first distance is equal to or less than a threshold value, and sets the diameter of the first contour to the first diameter. If the 1 distance is greater than the threshold, the diameter of the first contour is taken as a second diameter, and the second diameter is less than the first diameter.

Further, in order to achieve the above object, one aspect of the lighting system according to the present disclosure includes a lighting device that irradiates light on an object, a first light source that irradiates light, the number of the objects, and the number of the objects. a detection unit that detects the state of the object including the existing area, and outputs detection information indicating the detected detection result; a control unit that controls a form of a first contour; and an information processing device that determines a light emission form of light emitted by the first light source and the first contour based on the detection information, wherein the light emission form is determined. includes the color temperature and brightness of the light emitted by the first light source, and the detection information includes at least one of information indicating the pulsation number of the object and information indicating the temperature of the object. include.
Further, in order to achieve the above object, one aspect of the lighting system according to the present disclosure includes a lighting device that irradiates light on an object, a first light source that irradiates light, the number of the objects, and the number of the objects. a detection unit that detects the state of the object including the existing area, and outputs detection information indicating the detected detection result; a control unit that controls the form of a first contour; and an information processing device that determines the light emission mode of light emitted by the first light source and the first contour based on the detection information, the control unit changes the color temperature of the light emitted from the first light source according to the detection information.
Further, in order to achieve the above object, one aspect of the lighting system according to the present disclosure includes a lighting device that irradiates light on an object, a first light source that irradiates light, the number of the objects, and the number of the objects. a detection unit that detects the state of the object including the existing area, and outputs detection information indicating the detected detection result; A control unit that controls the form of a first contour, an information processing device that determines a light emission mode of light emitted by the first light source and the first contour based on the detection information, and a periphery of the object. the detection unit is an imaging device that outputs an image obtained by imaging the object; and the information processing device is the object that appears in the image output by the detection unit. recognizing an object, determining the light emission mode of the light emitted by the first light source and the first contour according to the recognized object and the detection information; The light emission mode of the light emitted from the first light source and the first contour are determined according to the sound pressure level collected by the sound part.
Further, in order to achieve the above object, one aspect of the lighting system according to the present disclosure includes a lighting device that irradiates light on an object, a first light source that irradiates light, the number of the objects, and the number of the objects. a detection unit that detects the state of the object including the existing area, and outputs detection information indicating the detected detection result; A control unit that controls the shape of a first contour, an information processing device that determines the emission mode of light emitted by the first light source and the first contour based on the detection information, and a sound that outputs sound wherein the detection unit is an imaging device that outputs an image obtained by imaging the object; and the information processing device recognizes the object reflected in the image output by the detection unit, and detects the recognized object. According to the object and the detection information, the light emission mode of the light emitted by the first light source and the first contour are determined, and the acoustic device determines the object recognized by the information processing device and the Sound is output according to the detection information.
Further, in order to achieve the above object, one aspect of the lighting system according to the present disclosure includes a lighting device that irradiates light on an object, a first light source that irradiates light, the number of the objects, and the number of the objects. a detection unit that detects the state of the object including the existing area, and outputs detection information indicating the detected detection result; A control unit that controls the form of a first contour, an information processing device that determines a light emission mode of light emitted by the first light source and the first contour based on the detection information, and a fragrance that generates fragrance wherein the detection unit is an imaging device that outputs an image obtained by imaging the object; and the information processing device recognizes the object reflected in the image output by the detection unit, and detects the recognized object. According to the object and the detection information, the light emission mode of the light emitted by the first light source and the first contour are determined, and the aroma device determines the object recognized by the information processing device and the A fragrance is generated according to the detected information.
In order to achieve the above object, one aspect of the lighting system according to the present disclosure includes a lighting device that irradiates light on an object, a first light source that irradiates light, the number of the objects, and the number of the objects. a detection unit that detects the state of the object including the existing area, and outputs detection information indicating the detected detection result; A control unit that controls the form of a first contour, an information processing device that determines the light emission mode of light emitted by the first light source and the first contour based on the detection information, and the first light source A second light source that irradiates light in a second direction opposite to the first direction of light irradiation, and a second contour forming that forms a second contour of the light emitted by the second light source that is projected onto the irradiation surface. The control unit controls such that the light emitting modes of the light emitted by the first light source and the second light source are synchronized, and the first contour and the second contour are synchronized. to control the first contour forming part for forming the first contour and the second contour forming part.

A lighting device or the like according to the present disclosure can form a space produced by light.

FIG. 1 is a schematic diagram illustrating a lighting device according to an embodiment. FIG. 2 is a schematic diagram illustrating another light emission mode different from that in FIG. 1 in the lighting device according to the embodiment. FIG. 3 is a block diagram illustrating the lighting system according to the embodiment. FIG. 4A is an image diagram illustrating the lighting system according to the embodiment. FIG. 4B is an image diagram illustrating a case where the size of the first contour and the size of the second contour are the same in the illumination system according to the embodiment. FIG. 5 is a cross-sectional view of the lighting device taken along line VV in FIG. FIG. 6 is a schematic diagram illustrating the opening diameters of the first contour forming portion and the second contour forming portion used in the lighting device of the lighting system according to the embodiment. FIG. 7 is a schematic diagram illustrating an example of a boundary between an irradiation area and a non-irradiation area of light irradiated onto an irradiation surface by the lighting device of the lighting system according to the embodiment. FIG. 8 is a flowchart illustrating the operation of the information processing device of the lighting system according to the embodiment. FIG. 9 is a flowchart exemplifying the operation of determining the diameter of the first contour in the information processing device of the lighting system according to the embodiment.

Embodiments of the present disclosure will be described below with reference to the drawings. It should be noted that each of the embodiments described below is a specific example of the present disclosure. Therefore, the numerical values, shapes, materials, components, arrangement positions and connection forms of components, steps, order of steps, etc. shown in the following embodiments are examples and are not intended to limit the present disclosure. do not have. Therefore, among the constituent elements in the following embodiments, constituent elements that are not described in independent claims representing the highest concept of the present disclosure will be described as optional constituent elements.

Each figure is a schematic diagram and is not necessarily strictly illustrated. Therefore, for example, the scales and the like do not necessarily match in each drawing. Moreover, in each figure, the same code|symbol is attached|subjected to the substantially same structure, and the overlapping description is abbreviate|omitted or simplified.

Moreover, in the following embodiments, expressions such as substantially parallel are used. For example, "substantially parallel" means not only being completely parallel, but also being substantially parallel, that is, including an error of, for example, several percent. Also, "substantially parallel" means "parallel" as long as the effects of the present disclosure can be achieved. The same applies to expressions using other "abbreviations".

A lighting device and a lighting system according to the following embodiments will be described.

(Embodiment)
[Configuration: lighting system 1]
FIG. 1 is a schematic diagram illustrating an illumination device 3 according to an embodiment. FIG. 2 is a schematic diagram illustrating another light emission mode different from that of FIG. 1 in the lighting device 3 according to the embodiment.

As shown in FIGS. 1 and 2, by detecting the presence of users, the lighting system 1 detects the number of users present in the room, the facial expressions of the users, biological information indicating the state of the user's body, the indoor environment, and the like. It is a system that can illuminate by changing the light emission mode according to the conditions. This lighting system 1 uses a lighting device 3 that illuminates a part of the room. Note that the lighting device 3 may be able to illuminate the entire room. The user's physical condition is, for example, the user's pulse rate, the user's body temperature, and the like. The indoor environment includes temperature, humidity, ambient sound pressure level, and the like. A user is an example of an object. The user's body condition is an example of the object condition. Also, the target object is not limited to a person who is a user, and may be an object such as an ornament or a wall. The pulse rate of the user is an example of the pulse rate of the object. A user's body temperature is an example of the temperature of an object.

FIG. 3 is a block diagram illustrating the lighting system 1 according to the embodiment.

As shown in FIG. 3 , lighting system 1 includes lighting device 3 , information processing device 5 , and terminal device 7 .

[Lighting device 3]
As shown in FIGS. 1 to 3, the lighting device 3 is installed, for example, on the ceiling of a room in a building. The illumination device 3 can irradiate (illuminate) light in a first direction and a second direction opposite to the first direction. The illumination device 3 synchronizes the light emitting mode of the light emitted in the first direction and the light emitting mode of the light emitted in the second direction. For example, the lighting device 3 irradiates the floor surface with light and simultaneously irradiates the ceiling surface with light. Further, when recognizing a user present in the room, the lighting device 3 irradiates the user with light. Specifically, the illumination device 3 emits light from the illumination device 3 to the floor surface in the first direction where the user exists, and also emits light to the ceiling surface in the second direction, which is the opposite direction to the first direction. do. In this embodiment, the first direction is the vertically downward direction, and the second direction is the vertically upward direction. Note that the first direction and the second direction may change depending on the installation state of the lighting device 3, and the first direction is not limited to the vertically downward direction and the second direction is not limited to the vertically upward direction.

In addition, the lighting device 3 emits light according to the number of users present in the room, the facial expressions of the users, biological information indicating the state of the user's body, the voice of the user, the environment around the lighting device 3, and the like. Change the mode.

FIG. 4A is an image diagram illustrating the lighting system 1 according to the embodiment. As shown in FIG. 4A, for example, when one or more users are present in the room, the lighting device 3 irradiates spots of light so as to cover the presence areas of the grouped users. That is, the lighting device 3 irradiates light so as to envelop the group. In other words, the illumination device 3 changes the area of the light to irradiate the floor surface and the ceiling surface according to the size of the user's presence area. In addition, when the size and shape of the existence area change due to an increase or decrease in the number of users, the illumination device 3 changes the illumination area of the light emitted to the floor surface and the illumination area of the light emitted to the ceiling surface. The size and shape of each light irradiation area are changed at the same time so that they are synchronized with each other.

Here, the user presence area is an area in which one or more users are clustered in a certain range, for example, a range formed by surrounding one or more users with a circle. Also, as will be described later, the user's presence area is a range in which the first distance from the lighting device 3 to the user is equal to or less than a threshold.

Here, to irradiate light so as to envelop the group means to irradiate almost all of the user's body with light while looking at the user from the lighting device 3 . Therefore, the user is not viewed from the illumination device 3 and light is not intentionally applied to a part of the user's body.

Moreover, the lighting device 3 irradiates the ceiling surface in the second direction opposite to the first direction toward the group of users from the lighting device 3 . Thereby, the lighting device 3 illuminates from the ceiling surface to the floor surface. For example, if the room is dark, a columnar space is formed in which the area from the ceiling surface to the floor surface is bright.

In addition, when the lighting device 3 irradiates the floor surface and the ceiling surface with light according to at least one of the facial expression of the user and the biometric information indicating the state of the user's body, the lighting device 3 determines the light irradiation area and the light distribution. The boundary with the non-irradiated area that is not irradiated is also changed. For example, the illumination device 3 irradiates light so that the boundary between the illuminated area and the non-illuminated area is clearly emphasized, or the brightness gradually decreases from the center point of the illuminated area toward the non-illuminated area. , irradiate light so as to blur the boundary of the light. In addition, when the user's facial expression and biological information indicating the state of the user's body change, the lighting device 3 changes the boundary between the irradiation area and the non-irradiation area of the light emitted to the floor surface, and illuminates the ceiling surface. Each light is changed at the same time so that the change of the boundary between the light irradiation area and the non-irradiation area is synchronized.

In addition, the illumination device 3 may change the brightness of the emitted light and the color of the light (color temperature, wavelength, etc.) according to the facial expression of the user and biological information indicating the state of the user's body. good. In this case as well, when the facial expression of the user or the biological information indicating the state of the user's body changes, the lighting device 3 changes the brightness and color of the light emitted to the floor and the light emitted to the ceiling. Each light is changed at the same time so that the brightness and color of the lights are synchronized.

FIG. 5 is a cross-sectional view of the illumination device 3 taken along line VV in FIG.

As shown in FIGS. 3 and 5, the illumination device 3 includes a housing 31, a first light-emitting module 10, a second light-emitting module 20, a first contour forming portion 30, a second contour forming portion 40, It includes a first lens 50 , a second lens 60 , a control section 70 , one or more acoustic devices 80 , and a first communication section 90 .

<Case 31>
The housing 31 includes the first light emitting module 10, the second light emitting module 20, the first contour forming section 30, the second contour forming section 40, the first lens 50, the second lens 60, the control section 70, the acoustic device 80, and , and a container housing the first communication unit 90 . The housing 31 has a bottomless cylindrical shape and is elongated vertically (in the vertical direction). In the present embodiment, the housing 31 has a cylindrical shape, but is not limited to this. For example, it may be a polygonal tube, and the shape is not limited.

In this embodiment, the housing 31 is connected to the wire 99 and installed on the ceiling via the wire 99 . That is, the housing 31 is installed so as to be suspended from the ceiling. A communication cable (not shown) for communicably connecting the first communication unit 90 and the information processing device 5 is inserted through the wire 99 .

In order to efficiently dissipate the heat generated by the first light emitting module 10, the second light emitting module 20, etc., the housing 31 is preferably made of a metal material such as aluminum. For example, a resin material may be used as long as heat dissipation can be ensured.

Further, the housing 31 has a shade portion 39 on the vertically upward side that reflects the light emitted by the second light emitting module 20 toward the ceiling surface. The shade portion 39 has a mirror surface that controls light distribution by reflecting the light emitted from the second light emitting module 20 . The inner surface of the shade portion 39 may be a mirror surface made of metal such as aluminum, or may be formed using a hard white resin material such as polybutylene terephthalate. The shade portion 39 has a bottomless cylindrical shape that is open on the ceiling surface side. The shape of the shade portion 39 is a truncated cone whose inner diameter gradually increases from the end on the floor surface side toward the end portion on the ceiling surface side.

<First Light Emitting Module 10>
The first light-emitting module 10 is a module that emits light in a predetermined light-emitting mode according to instructions from the control section 70 . The first light emitting module 10 is arranged on the floor surface side of the housing 31 and held by the housing 31 so as to emit light toward the floor surface.

The first light emitting module 10 has a first light source 11 and a substrate.

The first light source 11 emits light in a first direction (the floor surface in this embodiment). Specifically, the optical axis of the first light source 11 is a straight line substantially parallel to the vertically downward direction. In this embodiment, the first direction is a direction parallel to the vertical direction. The optical axis is the main straight line of light emitted by the first light source 11 . The floor surface is an example of a surface irradiated with light emitted from the first light source 11 .

Also, the first light source 11 is configured to emit white light, for example. Specifically, the first light source 11 is composed of COB (Chip On Board) type LED elements, and includes a substrate, a plurality of blue LEDs that are bare chips (LED chips) mounted on the substrate, and the blue LEDs. and a sealing member containing a yellow phosphor. Also, the first light source 11 may emit light of two or more colors. Specifically, the first light source 11 is a three-color light source of RGB, and emits three monochromatic lights of red, blue, and green, and dims these three monochromatic lights. may emit colored light or white light. In this embodiment, the color temperature of the light emitted by the first light source 11 is in the range of 2000K or more and 7000K or less.

Further, the first light source 11 may be a surface-mounted (SMD: Surface Mount Device) type LED element in which an LED is packaged, and includes a container (package) and a plurality of LED chips mounted in the container. and a sealing member for sealing the plurality of LED chips. 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 first light source 11 configured in this manner is mounted on a substrate. In this embodiment, the first light source 11 is mounted on one substrate.

The board is a mounting board having a mounting surface for mounting the first light source 11 . The substrate is fixed to the housing 31 by being attached to the housing 31 with a fixing member such as a screw (not shown). Specifically, the board is fixed to the housing 31 so that the mounting surface is substantially perpendicular to the vertical direction and faces the floor surface.

As the substrate, 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 as a base. A 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. Note that the substrate may be a rigid substrate or a flexible substrate.

<Second light emitting module 20>
The second light-emitting module 20 is a module that emits light in a predetermined light-emitting mode according to instructions from the control section 70 . The second light emitting module 20 is arranged on the ceiling surface side of the housing 31 and held by the housing 31 so as to emit light toward the ceiling surface.

The second light emitting module 20 has a second light source 21 and a substrate.

The second light source 21 emits light in a second direction (the ceiling surface in this embodiment). Specifically, the optical axis of the second light source 21 is a straight line substantially parallel to the vertically downward direction. In this embodiment, the second direction is a direction parallel to the vertical direction. The optical axis is the main straight line of light emitted by the second light source 21 . The ceiling surface is an example of a surface irradiated with light emitted from the second light source 21 .

Further, the second light source 21 is configured to emit white light, for example. Specifically, the second light source 21 is composed of a COB type LED element, a substrate, a plurality of blue LEDs that are bare chips (LED chips) mounted on the substrate, these blue LEDs are sealed, and a yellow and a sealing member containing a phosphor. Also, the second light source 21 may emit light of two or more colors. Specifically, the second light source 21 is a three-color light source of RGB, and emits three monochromatic lights of red, blue, and green, and dims these three monochromatic lights. may emit colored light or white light. In this embodiment, the color temperature of the light emitted by the second light source 21 is in the range of 2000K or more and 7000K or less.

Further, the second light source 21 may be a surface-mounted LED element in which an LED is packaged. and a sealing member for stopping. 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 second light source 21 configured in this way is mounted on the substrate. In this embodiment, the second light source 21 is mounted on one substrate.

The board is a mounting board having a mounting surface for mounting the second light source 21 . The substrate is fixed to the housing 31 by being attached to the housing 31 with a fixing member such as a screw (not shown). Specifically, the substrate is fixed to the housing 31 so that the mounting surface is substantially perpendicular to the vertical direction and faces the ceiling surface.

As the substrate, 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 as a base. A 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. Note that the substrate may be a rigid substrate or a flexible substrate.

<First contour forming part 30>
The first contour forming unit 30 is a diaphragm mechanism that forms a first contour of the light emitted from the first light source 11 that irradiates the floor surface. The first contour forming part 30 is arranged on the optical axis closer to the floor surface than the first light source 11 and is held by the housing 31 so as to block part of the light emitted by the first light source 11 . The first contour forming part 30 forms the first contour of the irradiation area of the light irradiated onto the floor surface. The first contour is an annular shape (elliptical, perfect circle, polygonal, etc.), an annular shape formed of wavy curves, or the like. In this embodiment, the size of the second contour is smaller than the size of the first contour. may be the same.

For example, the first contour forming section 30 has a configuration equivalent to an aperture mechanism used in a camera or the like. The first contour forming part 30 is a bottomless cylindrical holding member having an opening through which the light from the first light source 11 passes, and is provided in the opening of the holding member, and a plurality of sheets are superimposed to vary the aperture diameter of the opening. It has aperture blades that allow the The plurality of aperture blades are driven and controlled by the control unit 70 so that two overlapping aperture blades slide to vary the aperture diameter of the aperture.

FIG. 6 is a schematic diagram illustrating the opening diameters of the first contour forming portion 30 and the second contour forming portion 40 used in the lighting device 3 of the lighting system 1 according to the embodiment.

Each aperture blade 34a shown in FIG. 6a is formed in an arc shape on the tip side thereof. Each diaphragm blade 34b shown in FIG. 6b is formed in a wavy shape such that the tip side forming the opening 33 undulates. In this embodiment, two types of diaphragm blades 34a and 34b are exemplified, but the present invention is not limited to these. The tip of each aperture blade may be linear or serrated, and the shape is not particularly limited. In this embodiment, the first contour forming section 30 has two types of aperture blades 34a and 34b having the shapes shown in FIGS. 6a and 6b. In this manner, the first contour forming section 30 can switch the contour of the aperture 33 using two types of aperture blades 34a and 34b.

Further, as shown in FIGS. 3 and 6, the first contour forming unit 30 is driven and controlled by the control unit 70 to set a plurality of aperture blades 34a for setting the shape of the opening 33, or a plurality of aperture blades. 34b are rotated at the same time. For example, the first contour forming part 30 forms the shape of the aperture 33 of the plurality of aperture blades 34a or the plurality of aperture blades 34b in a wavy shape, passes through the center of the aperture plane of the aperture 33, and is perpendicular to the aperture plane. A plurality of aperture blades 34a or a plurality of aperture blades 34b are simultaneously rotated about the line. As a result, the first contour is formed to undulate. In addition, the first contour forming unit 30 simultaneously rotates the plurality of diaphragm blades 34a or the plurality of diaphragm blades 34b while changing the diameter of the aperture 33 or changing the shape of the aperture 33 .

<Second contour forming part 40>
As shown in FIGS. 3 and 5, the second contour forming section 40 is a diaphragm mechanism that forms a second contour of the light emitted from the second light source 21 that irradiates the ceiling surface. The second contour forming part 40 is arranged on the optical axis closer to the ceiling surface than the second light source 21 and is held by the housing 31 so as to block part of the light emitted by the second light source 21 . The second contour forming part 40 forms a second contour of the irradiation area of the light irradiated onto the ceiling surface. The second contour is an annular shape (elliptical, perfect circle, polygonal, etc.), an annular shape formed of wavy curves, or the like. In this embodiment, the size of the second contour is smaller than the size of the first contour, but as shown in FIG. It may be smaller than the size of the second contour, or it may be the same size. FIG. 4B is an image diagram illustrating a case where the size of the first contour and the size of the second contour are the same in the illumination system 1 according to the embodiment.

For example, the second contour forming section 40 has a configuration equivalent to an aperture mechanism used in a camera or the like. The second contour forming part 40 is a bottomless tubular holding member having an opening through which the light from the second light source 21 passes, and is provided in the opening of the holding member. It has aperture blades that allow the The plurality of aperture blades are driven and controlled by the control unit 70 so that two overlapping aperture blades slide to vary the aperture diameter of the aperture.

The second contoured portion 40 has a configuration similar to that of FIGS. 6a and 6b. Each diaphragm blade of the second outline forming portion 40 is formed in an arc shape on the tip side thereof. Further, each diaphragm blade is formed in a wavy shape such that the tip side forming the aperture undulates. In this embodiment, two types of aperture blades are exemplified, but the present invention is not limited to these. The tip of each aperture blade may be linear or serrated, and the shape is not particularly limited. In the present embodiment, the second contour forming section 40 has the two types of aperture blades described above. In this way, the second contour forming section 40 can switch the contour of the aperture using two types of diaphragm blades.

In addition, the second contour forming section 40 is driven and controlled by the control section 70 to simultaneously rotate a plurality of aperture blades that set the shape of the aperture. For example, the second contour forming unit 40 forms the shape of the aperture of the plurality of aperture blades in a wavy shape, and then passes through the center of the aperture plane of the aperture and uses a line perpendicular to the aperture plane as an axis to form the plurality of aperture blades. rotate at the same time. As a result, the second contour is formed to undulate. In addition, the second contour forming section 40 simultaneously rotates the plurality of diaphragm blades while changing the diameter of the aperture or changing the shape of the aperture.

<First lens 50>
The first lens 50 is arranged on the optical axis closer to the floor surface than the first light source 11 and the first contour forming section 30, and is attached to the housing 31 so as to transmit the light that has passed through the first contour forming section 30. retained. The first lens 50 is a light distribution control lens that controls the light distribution of light emitted from the first light source 11 . The surface of the first lens 50 facing the first light source 11 has a shape that allows the light emitted from the first light source 11 to enter the first lens 50 with as little leakage as possible.

The arrangement position of the first lens 50 relative to the first light source 11 and the first contour forming section 30 is relatively changed. That is, the first lens 50 is moved in the vertical direction by the drive section (not shown) controlled by the control section 70 .

FIG. 7 is a schematic diagram illustrating an example of a boundary between an irradiation area and a non-irradiation area of light irradiated onto an irradiation surface by the lighting device 3 of the lighting system 1 according to the embodiment. As shown in FIGS. 5 and 7, since the distance from the opening 33 of the first contour forming part 30 to the first lens 50 changes, the boundary between the illuminated area and the non-illuminated area of the floor surface becomes It can be sharply emphasized or blurred.

<Second lens 60>
As shown in FIGS. 5 and 7, the second lens 60 is arranged on the optical axis closer to the ceiling surface than the second light source 21 and the second contour forming section 40, and the light passing through the second contour forming section 40 is is held in the housing 31 so as to transmit the . The second lens 60 is a light distribution control lens that controls the light distribution of light emitted from the second light source 21 . The surface of the second lens 60 facing the second light source 21 has a shape that allows the light emitted from the second light source 21 to be taken into the second lens 60 with as little leakage as possible.

The second lens 60 changes its arrangement position relative to the second light source 21 and the second contour forming section 40 . In other words, the second lens 60 is vertically moved by the drive unit (not shown) controlled by the control unit 70 . Since the distance from the opening of the second contour forming part 40 to the second lens 60 changes, the boundary between the illuminated area and the non-illuminated area of the ceiling surface is clearly emphasized or blurred.

<Control unit 70>
As shown in FIGS. 3 and 5, the control unit 70 controls the light emission modes of the lights emitted by the first light source 11 and the second light source 21 . Specifically, the control unit 70 controls the first light source 11 and the second light source 21 such that the light emission modes of the light emitted by the first light source 11 and the second light source 21 are synchronized.

The light emission mode includes the color (color temperature, wavelength), brightness, blinking, etc. of the light emitted by the first light source 11 and the second light source 21 . When the control unit 70 acquires the light emission scene information indicating the light emission mode from the information processing device 5, the control unit 70 controls the first light source 11 and the second light source 21 according to the acquired light emission scene information. The light emission scene information includes light emission information indicating the light emission mode of the light emitted by the first light source 11 and the second light source 21, and the first contour forming unit 30 and the second contour forming unit 30 for forming the first contour and the second contour. It includes aperture control information for controlling the shape of the aperture of the contour forming section 40 (using the aperture blades 34a or 34b) and the aperture diameter of the aperture.

Further, when the control unit 70 acquires the light emission scene information indicating the light emission mode from the information processing device 5, the control unit 70 detects the first contours of the lights emitted by the first light source 11 and the second light source 21 according to the acquired light emission scene information. and the second contour. Specifically, the control unit 70 controls the first contour forming unit 30 and the second contour forming unit 40 to gradually change the first contour and the second contour so as to synchronize with each other.

The luminous scene information further includes the shape of the openings of the first contour forming section 30 and the second contour forming section 40 for forming the first contour and the second contour (using the aperture blades 34a or 34b) and the aperture contains aperture control information that controls the aperture diameter of

The control unit 70 controls the driving units of the first contour forming unit 30 and the second contour forming unit 40 so that the plurality of aperture blades of the first contour forming unit 30 and the second contour forming unit 40 form an aperture. deform the shape and size of Thereby, the control unit 70 changes the first contour and the second contour of the light irradiated on the floor surface and the ceiling surface so as to synchronize with each other. Synchronization of the first contour and the second contour means that the shape of the first contour and the shape of the second contour are substantially the same, and that the size of the first contour and the size of the second contour are different. that the size of the first contour and the size of the second contour change in the same manner (if the size of the first contour increases, the size of the second contour also increases, or vice versa); It means that the sizes of the first contour and the second contour change in the same way when the contour sizes match.

When the size of the first contour and the size of the second contour are matched as shown in FIG. 4B, the first irradiation distance from the illumination device 3 to the first irradiation surface forming the first contour and the second contour are formed Since the second irradiation distance to the second irradiation surface is different from the second irradiation distance, the following means are used in the present embodiment.

By providing a distance sensor on the lighting device 3 or on a wall or the like around the lighting device 3, the distance sensor can measure the first irradiation distance from the lighting device to the first irradiation surface and the distance from the lighting device 3 to the second irradiation surface. A second irradiation distance may be measured. The control unit 70 obtains information indicating each of the first irradiation distance and the second irradiation distance obtained from the distance sensor, and determines the size of the first contour and the size of the second contour according to the first irradiation distance and the second irradiation distance. The size of the openings in the first contoured portion 30 and the second contoured portion 40 may be adjusted to match the size of . Note that the lighting system 1 may include such a distance sensor.

Based on the dimensions of the lighting device 3 and the installation position of the lighting device 3, the control unit 70 controls the first contour forming unit 30 and the second contour so that the size of the first contour and the size of the second contour match. 2 It may have a table for adjusting the size of the opening of the contour forming part 40 . The control unit 70 can match the size of the first contour and the size of the second contour based on the table.

Also, the control unit 70 may calculate the first irradiation distance and the second irradiation distance based on the image information captured by the imaging unit 110 . Further, when the image capturing unit 110 is a TOF (Time Of Flight) sensor, information indicating the first irradiation distance and the second irradiation distance is acquired from the image capturing unit 110, and according to the first irradiation distance and the second irradiation distance Then, the sizes of the openings of the first contour forming part 30 and the second contour forming part 40 may be adjusted so that the size of the first contour and the size of the second contour match.

Although the method for matching the size of the first contour and the size of the second contour has been illustrated, the present invention is not limited to this, and other known means may be used.

In addition, the control unit 70 controls a group existence area defined by the number of users existing in a detection area detectable by the imaging unit 110 described later and the arrangement of the users (sometimes simply referred to as a user existence area). The opening control information generated based on the user information indicating is acquired from the information processing device. The control unit 70 changes (controls) the size (that is, the diameter) of the first contour by controlling the first contour forming unit 30 based on the aperture control information. The aperture control information includes control information for setting the diameter of the first contour as the first diameter, control information for setting the diameter of the first contour as the second diameter larger than the first diameter, or the like. Since the information processing device 5 determines the aperture control information based on the user information, the details will be described later. When the first contour is wavy, for example, the diameter of the first contour may be an average value defined by the maximum value of the first contour and the minimum value of the first contour. The control unit 70 may control the second contour forming unit 40 in the same manner as the above-described control of the first contour forming unit 30 .

Further, the control unit 70 changes the light distribution angle of the light emitted by the first light source 11 and the light distribution angle of the light emitted by the second light source 21 so as to synchronize with each other. Specifically, the control unit 70 changes the degree of emphasis of the first contour (gradation of light of the first contour portion) and the degree of emphasis of the second contour (gradation of light of the second contour portion). The first contour forming section 30 and the second contour forming section 40 are controlled so that the . That is, the control unit 70 relatively changes the arrangement position of the first lens 50 with respect to the first light source 11 and the first contour forming unit 30, and the position of the second lens 60 with respect to the second light source 21 and the second contour forming unit 40. Relatively change the placement position. The control unit 70 changes the positions of the first lens 50 and the second lens 60 by a driving unit (not shown). When the first lens 50 is moved away from the first contour forming part 30 , the control part 70 also moves the second lens 60 away from the second contour forming part 40 . Change (control) is also synchronized. As a result, the control unit 70 makes the boundary between the illuminated area and the non-illuminated area of the light illuminated on the floor surface and the boundary between the illuminated area and the non-illuminated area of the light illuminated on the ceiling surface clear at the same time. It is emphasized and expressed, and it is blurred.

Also, the control unit 70 changes the color temperature of the light emitted by the first light source 11 and the second light source 21 according to the biological information. That is, the control unit 70 controls the first light source 11 and the second light source 21 to emit light based on the light emission information indicated in the light emission scene information (the light emission scene information acquired from the information processing device 5) generated according to the biological information. change the color temperature of each light that The control unit 70 synchronizes changes in the color temperature of light so that the color temperatures of the lights emitted by the first light source 11 and the second light source 21 are the same.

Further, the control unit 70 adjusts the light emission mode of the light emitted by the first light source 11 and the second light source 21 and the first contour and the second contour according to the sound pressure level collected by the sound collector 120. You can change it. Here, the sound pressure level collected by the sound collector 120 indicates, for example, the volume of the user's speech. That is, based on the volume of the user's speech collected by the sound collecting unit 120, the control unit 70 controls the light emission mode (light color temperature, brightness etc.). For example, the control unit 70 synchronizes changes in color temperature, brightness, etc. of light emitted from the first light source 11 and the second light source 21 .

In addition, the control unit 70 causes the acoustic device 80 to output sound according to the user's facial expression and biological information. That is, the control unit 70 causes the sound device 80 to output sound based on the light emission information (light emission information acquired from the information processing device 5) indicated in the music information generated according to the user's facial expression and biological information. In addition, the control unit 70 causes the acoustic device 80 to output sound so as to synchronize with the lights emitted by the first light source 11 and the second light source 21 . That is, the control unit 70 changes the sound output from the acoustic device 80 or changes the volume in accordance with changes in the light emission modes of the lights emitted by the first light source 11 and the second light source 21 .

<Sound device 80>
The audio device 80 is a speaker that outputs sounds stored in a storage unit (not shown) according to the user's facial expression and biological information recognized by the information processing device 5 . That is, the audio device 80 outputs sounds based on music information (music information acquired from the information processing device 5) generated according to the user's facial expression and biometric information. In the present embodiment, the acoustic device 80 reproduces music that relaxes the user, music that activates the user, and the like, according to the user's facial expression and biological information.

The acoustic device 80 is arranged on the floor surface side of the housing 31 and held by the housing 31 so as to emit sound toward the floor surface. That is, the acoustic device 80 is arranged in a posture that outputs sound toward the user present below the lighting device 3 . Also, in the present embodiment, the acoustic device 80 is housed in the housing 31 of the lighting device 3 , but may be installed on the ceiling or the like, and may not be housed in the housing 31 .

The acoustic device 80 has a speaker grille 81 that partially covers the opening of the housing 31 and a speaker main body 82 that outputs sound. The speaker grille 81 is arranged closer to the floor surface of the housing 31 than the first lens 50 so as to cover the speaker main body 82 and surround the first lens 50 when the lighting device 3 is viewed vertically upward. be.

Note that, in the present embodiment, the acoustic device 80 may be a sound reproduction player equipped with a speaker. In this case, the control unit 70 or the information processing device 5 stores music, software for reproducing music, and the like.

Note that the acoustic device 80 may be a directional speaker. For example, the sound device 80 may output sound such that only users present within the first contour illuminated by the lighting device 3 can hear the music.

<First Communication Unit 90>
The first communication unit 90 is a communication module (communication interface) that receives information such as lighting scene information, music information, and fragrance information from the information processing device 5 . The first communication unit 90 acquires each information through wireless communication or wired communication with the information processing device 5 . The first communication unit 90 outputs each acquired information to the control unit 70 . In this embodiment, the first communication unit 90 is in wired communication with the information processing device 5 through a communication cable.

[Information processing device 5]
By detecting users, the information processing device 5 adjusts the lighting mode of the lighting device 3 according to the number of users present in the room, the mood of the users, biological information indicating the state of the user's body, the indoor environment, and the like. Lighting scene information to be changed is generated, music information to be output from the sound device 80 is generated, and fragrance information is generated to emit fragrance from the fragrance device 130 .

The information processing device 5 also periodically acquires weather information such as temperature and humidity from the external server 300 via the network. The information processing device 5 periodically acquires weather information from an external server 300 connected to the network via the first communication unit 90 .

The information processing device 5 has an imaging section 110 , a sound collecting section 120 , a fragrance device 130 , a processing section 140 , a power supply section 150 and a second communication section 160 .

<Imaging unit 110>
The imaging unit 110 is an image sensor that outputs an image of a user's facial expression. The imaging unit 110 is installed on a ceiling, a wall, or the like so as to be able to capture an image of the user's facial expression. When imaging the user's facial expression, the imaging unit 110 outputs it to the processing unit 140 as image information showing the user's facial expression. In the present embodiment, imaging section 110 captures an image of the user's facial expression, and outputs image information representing the user's facial expression to processing section 140 . The user's facial expression captured by the imaging unit 110 includes the movement of the user's eyes, the movement of the mouth, and the like. Note that the facial expression of the user may include not only the face but also the movement of the user's legs, body, hand, head, and the like. Also, the image information may include moving images as well as still images. The imaging unit 110 is an example of a detection unit.

The imaging unit 110 also recognizes the number of users and the user presence area, and outputs the recognition result to the processing unit 140 . Specifically, the imaging unit 110 recognizes the number of users present in the detection area and the user existence area (degree of dispersion of users, etc.), and generates user information indicating the number of users and the user existence area. , and outputs the generated user information to the processing unit 140 .

Note that the imaging unit 110 may be mounted on the lighting device 3 , and it is not an essential requirement to be mounted on a wall, ceiling, or the like, or to be mounted on the information processing device 5 .

<Sound collection unit 120>
The sound collector 120 is a microphone that collects sounds around the user. Specifically, the sound collecting unit 120 not only collects environmental sounds around the sound collecting unit 120, but also actively collects user's utterances. The sound collecting unit 120 outputs collected sound information indicating the collected sound to the processing unit 140 . In the present embodiment, the sound collecting unit 120 collects a sound uttered by the user and outputs collected sound information indicating the sound to the processing unit 140 .

Note that the sound collector 120 may be a directional microphone with high directivity to the user's presence area so that the user's voice can be collected.

Further, the sound collector 120 may be mounted on the lighting device 3, or may be installed on the ceiling, the wall, or the like.

<Aroma device 130>
Fragrance device 130 is a dispenser device, such as a spray can, containing a liquid fragrance. The fragrance device 130 emits fragrance according to the user's facial expression and biological information recognized by the information processing device 5 . In the present embodiment, fragrance device 130 emits fragrance based on fragrance information generated by processing unit 140 according to the user's facial expression and biological information.

When fragrance information is acquired from the processing unit 140, the fragrance device 130 sprays a liquid fragrance by pressing the button of the spray can. In addition, the fragrance device 130 emits fragrance so as to synchronize with the lights emitted by the first light source 11 and the second light source 21 .

Note that the fragrance device 130 may be mounted on the lighting device 3, or may be installed on the ceiling, the wall, or the like.

<Processing unit 140>
When the image information is acquired from the imaging unit 110, the processing unit 140 recognizes the facial expression of the user in the image indicated by the image information. In other words, the processing unit 140 not only identifies the position of the user's face by image recognition, but also reads the user's facial expression from the user's eye movement, mouth movement, cheek movement, and the like. For example, when there is not much change in the movement of the user's eyes, cheek movement, etc., the processing unit 140 recognizes that the facial expression is tense. Also, when the user's eye movements, cheek movements, and the like change drastically, the processing unit 140 recognizes that the conversation is lively and that the expression is a laughing expression, a sleepy expression, or the like. In addition, when the user's eye movement, cheek movement, etc. change gradually, the processing unit 140 recognizes it as a normal facial expression. In addition, although facial expressions to be recognized are taken as an example here, the facial expressions are not limited to these.

The processing unit 140 determines the light emission mode of the light emitted by the first light source 11 and the second light source 21 and the first contour and the second contour according to the recognized facial expression and biometric information of the user. The processing unit 140 further considers the sound pressure level collected by the sound collecting unit 120, the light emission mode of the light emitted by the first light source 11 and the second light source 21, the first contour and the second contour, and Determine contours. In this embodiment, the processing unit 140 detects the first light source 11 and the second light source based on the recognized facial expression of the user, the body temperature and pulse rate indicated by the biometric information, and the sound pressure level of the voice uttered by the user. 21 determines the emission mode of each light and the first contour and the second contour. Note that the processing unit 140 may further consider the weather information to determine the light emission mode of the light emitted by the first light source 11 and the second light source 21, and the first contour and the second contour. . The specific details of this decision will be described later.

Also, the processing unit 140 determines the size of the first contour and the size of the second contour based on the user information acquired from the imaging unit 110 . Specifically, the processing unit 140 determines the size of the first contour (the area within the first contour) based on the number of users indicated by the user information and the presence area of the group defined by the arrangement of the users. . That is, in order to irradiate the group with light, the processing unit 140 determines the size of the first outline so as to be equal to or larger than the size of the existence area. Specifically, the processing unit 140 calculates the first distance from the lighting device 3 (that is, the first light source 11) to the user from the number of users and the user presence area indicated in the user information.

If the calculated first distance is equal to or less than the threshold, the processing unit 140 sets the diameter of the first contour as the first diameter. This is the case where the user is present near the lighting device 3, and the user near the lighting device 3 is contained within the first contour (surrounding the user with the first contour). Specifically, in order to set the diameter of the first contour to the first diameter, the processing unit 140 determines the diameter of the opening of the first contour forming unit 30, and forms the first contour so as to have the determined opening diameter. Aperture control information including control information for controlling the unit 30 is generated. The processing unit 140 then transmits the generated aperture control information to the lighting device 3 .

In addition, when the calculated first distance is larger than the threshold, the processing unit 140 sets the diameter of the first contour to a second diameter that is smaller than the first diameter. This is a case where the user is far from the lighting device 3, and the user far away from the lighting device 3 is not included in the first outline, and the user near the lighting device 3 is the first outline. Try to fit it within the contour. Specifically, in order to set the diameter of the first contour to the second diameter, the processing unit 140 determines the diameter of the opening of the first contour forming unit 30, and forms the first contour so as to have the determined opening diameter. Aperture control information including control information for controlling the unit 30 is generated. The processing unit 140 then transmits the generated aperture control information to the lighting device 3 .

Also, since users in the group move slightly, the size of the first outline may be increased by several tens of percent of the existence area. The processing unit 140 also increases the size of the second contour so as to synchronize with the size of the first contour.

In addition, the processing unit 140 causes the fragrance device 130 to emit fragrance in synchronization with the lights emitted by the first light source 11 and the second light source 21 according to the recognized facial expression and biological information of the user. In addition, when there are a plurality of spray cans, the processing section 140 changes the fragrance generated from the fragrance device 130 in accordance with the change in the light emission mode of the light emitted by the first light source 11 and the second light source 21 .

<Power supply unit 150>
The power supply unit 150 has a function of supplying power to each unit of the lighting device 3 . The power supply unit 150 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 150 generates, for example, drive power for causing each of the first light source 11 and the second light source 21 to emit light. Specifically, the power supply unit 150 generates drive power for causing the first light source 11 and the second light source 21 to emit light, and supplies this drive power to the first light source 11 and the second light source 21 . For example, when the lighting device 3 is connected to a commercial AC power supply by an insertion plug or the like, the power supply unit 150 converts the AC power into DC power, which is driving power. The power supply unit 150 supplies the DC power to the first light source 11 and the second light source 21 as drive power for causing the first light source 11 and the second light source 21 to emit light.

<Second Communication Unit 160>
The second communication unit 160 is a communication module (communication interface) that transmits information such as lighting scene information, music information, and fragrance information to the lighting device 3 . The second communication unit 160 acquires each information through wireless communication or wired communication with the lighting device 3 . In the present embodiment, the second communication unit 160 is in wired communication with the lighting device 3 through a communication cable.

[Terminal device 7]
The terminal device 7 is a wearable terminal that acquires biometric information indicating the state of the user's body and outputs the acquired biometric information when the terminal device 7 is carried by the user. The terminal device 7 acquires biological information indicating the state of the user's body using a millimeter wave sensor or the like. The biological information includes at least one of information indicating the user's pulse rate and body temperature information indicating the user's body temperature. That is, the terminal device 7 detects the body temperature and pulse rate of the user at predetermined intervals, generates biological information, and transmits the generated biological information to the information processing device 5 . Note that the terminal device 7 may acquire biometric information using an application such as a smartphone, and is not limited to being worn on the body. The terminal device 7 is an example of a sensor.

[motion]
Next, operations of the lighting device 3 and the lighting system 1 will be described.

FIG. 8 is a flowchart illustrating the operation of the information processing device 5 of the lighting system 1 according to the embodiment. Here, it is assumed that the illumination device 3 is in a state of irradiating the floor surface with light in advance, that is, a light irradiation area is formed on the floor surface.

As shown in FIG. 8, the processing unit 140 determines whether the presence of the user has been detected by the imaging unit 110 (S1). In other words, it is determined whether or not the user has entered or has come into contact with the illuminated area of the light illuminated on the floor surface.

When a user enters or touches the light irradiation area, the imaging unit 110 detects the user (Yes in S1), so the processing unit 140 acquires user information indicating the number of users and the user's existence area (S2 ). Specifically, when a user enters the light irradiation area, the imaging unit 110 recognizes the number of users and the user's existence area, and generates user information indicating the number of users and the user's existence area. The imaging unit 110 outputs the generated user information to the processing unit 140 .

On the other hand, if the user does not enter or touch the light irradiation area, the imaging unit 110 cannot detect the user (No in S1). Make the process wait until

The processing unit 140 determines the size of the first contour and the size of the second contour based on the user information acquired from the imaging unit 110 (S3).

In addition, the imaging unit 110 generates image information indicating an image obtained by capturing the expression of each user, and outputs the generated image information to the processing unit 140 . The processing unit 140 acquires image information from the imaging unit 110 (S4). When the image information is acquired from the imaging unit 110, the processing unit 140 recognizes the facial expression of the user in the image indicated by the image information. For example, the processing unit 140 recognizes tense facial expressions, laughing facial expressions, sleepy facial expressions, normal facial expressions, and the like.

Note that the imaging unit 110 may generate image information and user information in parallel, or may collectively output the image information and the user information to the processing unit 140 . Therefore, the processing of step S2 and step S4 may be collectively performed.

In addition, the sound collecting unit 120 generates collected sound information indicating a voice uttered by the user, and outputs the generated collected sound information to the processing unit 140 . The processing unit 140 acquires collected sound information from the sound collecting unit 120 (S5). When the processing unit 140 acquires the collected sound information from the sound collection unit 120, the processing unit 140 recognizes the sound pressure level of the user indicated by the collected sound information.

In addition, the terminal device 7 acquires biometric information indicating the state of the user's body, and outputs the acquired biometric information to the processing unit 140 . The processing unit 140 acquires biometric information from the terminal device 7 (S6). For example, when the processing unit 140 acquires the biometric information from the terminal device 7, the processing unit 140 recognizes changes in the user's pulse rate indicated by the biometric information.

The order of the processes in steps S4 to S6 is not limited to this, and the order of the processes may be arbitrary. Also, these processes may be performed in parallel at the same time. That is, the processing unit 140 may acquire image information, collected sound information, and biological information at the same time.

Based on the image information, collected sound information, and biological information obtained in steps S4 to S6, the processing unit 140 determines that the facial expression of the user is the first facial expression, the sound pressure level is the first level or lower, and the pulse rate is equal to or greater than a prescribed pulse value (S7). For example, the first facial expression is a tense facial expression, the first level is about 50 dB, and the specified pulse value is the average value of general pulse. Note that the first facial expression, the first level, and the specified pulse value are examples, and the present invention is not limited to these.

If the user's facial expression is tense (first facial expression), the sound pressure level is about 50 dB (first level) or less, and the pulse rate is the average value (prescribed pulse value) or more, the user's state is considered to be seriously engaged in some work. Therefore, it is necessary to provide an environment in which users can concentrate. When the processing unit 140 recognizes the user's tense facial expression, determines that the user's sound pressure level is about 50 dB or more, and determines that the pulse rate is higher than the average value (Yes in S7), A lighting scene is determined (S8). That is, the processing unit 140 generates light emission information that sets the color temperature of the light, which is the light emission mode of the light emitted by the first light source 11 and the second light source 21, to about 3500K. In addition, the processing unit 140 clearly emphasizes the boundary between the light irradiation area and the non-irradiation area in the first contour and the second contour, and generates aperture control information that does not move the first contour and the second contour. The processing unit 140 outputs the light emission scene information including the generated light emission information and aperture control information to the lighting device 3 .

In addition, the processing unit 140 may determine fragrance information and music information in order to output fragrance and music according to the lighting scene determined in step S8.

If even one of the conditions in step S7 is not satisfied (No in S7), the processing unit 140 extracts the facial expression of the user from the image information, collected sound information, and biological information obtained in steps S4 to S6. is the second facial expression, the sound pressure level is equal to or higher than the second level, and it is determined whether or not the pulse rate is rapidly changing (S9). For example, the second facial expression is a sleepy facial expression and the second level is approximately 60 dB. A sudden change in the pulse rate is, for example, a case where the pulse rate before the change and the pulse rate after each change change by several tens of percent. Note that the second facial expression and the second level are examples, and the present invention is not limited to these.

When the user's facial expression is a sleepy facial expression (second facial expression), the sound pressure level is about 60 dB (second level) or higher, and the pulse rate changes rapidly, the user is in a sleepy state. It is considered to be Therefore, it is necessary to provide an environment that awakens the user. When the processing unit 140 recognizes the user's sleepy expression, determines that the user's sound pressure level is approximately 60 dB or more, and determines that the pulse rate is changing rapidly (Yes in S9), the light emission scene is determined (S10). In other words, the processing unit 140 sets the color temperature of the light, which is the light emission mode of the light emitted by the first light source 11 and the second light source 21, to about 6500K, and generates light emission information for blinking the light for a predetermined period. In addition, the processing unit 140 clearly emphasizes the boundary between the light irradiation area and the non-irradiation area in the first contour and the second contour, and generates aperture control information that does not move the first contour and the second contour. The processing unit 140 outputs the light emission scene information including the generated light emission information and aperture control information to the lighting device 3 .

In addition, the processing unit 140 may determine fragrance information and music information in order to output fragrance and music according to the lighting scene determined in step S10.

If even one of the conditions in step S9 is not satisfied (No in S9), the processing unit 140 extracts the facial expression of the user from the image information, collected sound information, and biological information obtained in steps S4 to S6. is the third expression, the sound pressure level is equal to or higher than the second level, and the pulse rate is equal to or higher than the specified pulse rate (S11). For example, the third facial expression is a smiling facial expression and the second level is approximately 60 dB. Note that the third facial expression is an example, and the present invention is not limited to these.

When the user's facial expression is a laughing facial expression (third facial expression), the sound pressure level is about 60 dB (second level) or higher, and the pulse rate is the average value (prescribed pulse rate) or higher, the user's state is It is considered that the conversation is lively. Therefore, it is necessary to provide the user with an environment in which conversation is more active. Therefore, the processing unit 140 recognizes the laughing expression of the user, determines that the user's sound pressure level is about 60 dB or more, and determines that the pulse rate is higher than the average value (Yes in S11). A lighting scene is determined (S12). That is, the processing unit 140 generates light emission information that sets the color temperature of the light, which is the light emission mode of the light emitted by the first light source 11 and the second light source 21, to about 5000K. In addition, the processing unit 140 blurs the boundary between the light irradiation area and the non-irradiation area in the first contour and the second contour, makes the shapes of the first contour and the second contour wavy, and Aperture control information is generated for moving the second contour in a wavy fashion (rotating the aperture blades). The processing unit 140 outputs the light emission scene information including the generated light emission information and aperture control information to the lighting device 3 .

In addition, the processing unit 140 may determine fragrance information and music information in order to output fragrance and music according to the lighting scene determined in step S12.

If even one of the conditions in step S11 is not satisfied (No in S11), the processing unit 140 extracts the facial expression of the user from the image information, collected sound information, and biological information obtained in steps S4 to S6. is the third expression, the sound pressure level is equal to or lower than the third level, and the pulse rate is less than the specified pulse rate (S13). For example, the fourth facial expression is a normal facial expression and the third level is approximately 30 dB. Note that the fourth facial expression is an example, and the present invention is not limited to these.

When the user's expression is a normal expression (fourth expression), the sound pressure level is about 30 dB (third level) or more, and the pulse rate is less than the average value (specified pulse rate), the user's state is It is considered to be a calm and normal state. Therefore, it is necessary to provide the user with a relaxing environment. Therefore, the processing unit 140 recognizes the user's normal expression, determines that the user's sound pressure level is about 30 dB or less, and determines that the pulse rate is lower than the average value (Yes in S13). A lighting scene is determined (S14). That is, the processing unit 140 generates light emission information that sets the color temperature of the light, which is the light emission mode of the light emitted by the first light source 11 and the second light source 21, to about 2400K. In addition, the processing unit 140 blurs the boundary between the light irradiation region and the non-light irradiation region in the first contour and the second contour, and increases or decreases the size of each of the first contour and the second contour. Aperture control information is generated that gradually changes (increases or decreases the aperture diameter of the diaphragm blades). The processing unit 140 outputs the light emission scene information including the generated light emission information and aperture control information to the lighting device 3 .

In addition, the processing unit 140 may determine fragrance information and music information in order to output fragrance and music according to the lighting scene determined in step S14.

If even one of the conditions in step S13 is not satisfied (No in S13), the processing unit 140 determines a prescribed lighting scene that has been set in advance (S15). output to Then, the information processing device 5 terminates this process.

In this way, when the lighting device 3 acquires the light-emitting scene information determined by the information processing device 5, the lighting device 3 performs illumination according to the acquired light-emitting scene information. It should be noted that in the present embodiment, the state of the user is exemplified by a state of lively conversation, a calm normal state, a state of earnestly working on some task, and a state of being drowsy. It is not limited to these. Therefore, the flow chart of the information processing device 5 is not limited to this embodiment either.

Next, processing for determining the size of the diameter of the first contour will be described.

FIG. 9 is a flow diagram illustrating the operation of determining the diameter of the first contour in the information processing device 5 of the lighting system 1 according to the embodiment. Here, the first contour assumes a circular shape.

As shown in FIG. 9, first, the processing unit 140 acquires user information from the imaging unit 110 (S31).

Next, the processing unit 140 determines the size of the first outline based on the number of users indicated by the user information and the user presence area (S32). Specifically, the processing unit 140 calculates the first distance from the lighting device 3 to the users, based on the number of users and the user presence areas indicated in the user information.

Next, the processing unit 140 determines whether the calculated first distance is equal to or less than a threshold (S33).

If the calculated first distance is equal to or less than the threshold (Yes in S33), the processing unit 140 determines the diameter of the first contour to be the first diameter (S34). In other words, all users existing near the lighting device 3 are placed within the first outline.

Next, the processing unit 140 generates opening control information that is control information for controlling the diameter of the opening of the first contour forming unit 30 and includes control information for setting the diameter of the first contour to the first diameter. Then, the processing unit 140 transmits the generated aperture control information to the illumination device 3 via the second communication unit 160 (S35). Then, the information processing device 5 terminates the process.

If the calculated first distance is greater than the threshold (No in S33), the processing unit 140 determines the diameter of the first contour to be the second diameter (S36). In other words, users who are far from the lighting device 3 are not included within the first outline, and users who are near the lighting device 3 are included within the first contour.

Next, the processing unit 140 generates opening control information that is control information for controlling the diameter of the opening of the first contour forming unit 30 and includes control information for setting the diameter of the first contour to the second diameter. Then, the processing unit 140 transmits the generated aperture control information to the illumination device 3 via the second communication unit 160 (S37). Then, the information processing device 5 terminates the process.

[Effect]
Next, effects of the illumination device 3 and the illumination system 1 according to the present embodiment will be described.

As described above, the lighting device 3 according to the present embodiment is a lighting device 3 that irradiates light onto an object (a user in the present embodiment), and includes the first light source 11 that irradiates light, and the number of objects and an existence area in which the object exists, and outputs detection information indicating the detected detection result; and a controller 70 for controlling the shape of the first contour of the light.

According to this, the existing area of the object can be defined by detecting the existence of the object. In addition, by setting the existence area as an irradiation surface on which light is irradiated, the control unit 70 can change the first outline of the irradiation surface according to the size and shape of the existence area. Therefore, it is possible to perform an effect such that the object is contained within the space formed by the light.

Therefore, with this illumination device 3, a space produced by light can be formed.

Moreover, the illumination device 3 according to the present embodiment further includes a first contour forming portion 30 that forms a first contour of the light irradiated onto the irradiation surface by the first light source 11 .

According to this, the first contour forming section can change the first contour according to the detection information. For example, depending on the object, the size of the first contour can be changed, or the shape of the first contour can be changed. Therefore, it is possible to realize an effect according to the state of the object by lighting.

Further, the lighting system 1 according to the present embodiment includes the lighting device 3, the imaging unit 110 that outputs detection information acquired by detecting the state of the object, and the first light source 11 based on the detection information. An information processing device 5 is provided for determining the light emission mode of the light to be irradiated and the first contour.

In addition, this lighting system 1 also has the same effect as described above.

Further, in the lighting device 3 according to the present embodiment, the control section 70 gradually changes the first contour by controlling the first contour forming section 30 .

According to this, for example, the outline can be changed gradually according to the biometric information. Therefore, it is possible to realize an effect according to the state of the object by lighting. In addition, it is difficult for the user to feel discomfort due to the gradual change of the outline.

Further, in the illumination device 3 according to the present embodiment, the control unit 70 controls the first contour to be wavy.

According to this, it is possible to express with light the movement that makes the first contour rippling. Therefore, it is possible to realize an effect according to the state of the object by lighting.

Moreover, in the illumination device 3 according to the present embodiment, the control unit 70 controls the size of the first outline according to the number of objects.

According to this, the size of the first contour can be appropriately adjusted according to the number of objects.

Moreover, in the illumination device 3 according to the present embodiment, the first outline is annular. Also, the imaging unit 110 detects a first distance between the first light source 11 and the object. Moreover, the control part 70 makes the diameter of a 1st outline the 1st diameter, when the 1st distance is below a threshold value. Also, when the first distance is greater than the threshold, the control unit 70 sets the diameter of the first contour to the second diameter. And the second diameter is smaller than the first diameter.

According to this, the object near the illumination device 3 can be contained within the first contour. In addition, it is possible to prevent objects far from the illumination device 3 from being included within the first contour, and to include objects existing near the illumination device 3 within the first contour. Therefore, the size of the first contour can be appropriately adjusted according to the number of objects and the arrangement of the objects.

Further, in the illumination device 3 according to the present embodiment, the control section 70 changes the light distribution angle of the light emitted by the first light source 11 .

According to this, the boundary between the light irradiation area and the light non-irradiation area can be sharpened or blurred. Therefore, this boundary can be changed according to biometric information. Therefore, it is possible to realize an effect according to the state of the object by lighting.

Moreover, in the illumination device 3 according to the present embodiment, the light emission mode includes the color temperature and brightness of the light emitted by the first light source 11 .

According to this, the color temperature and brightness of the ceiling surface and the floor surface can be synchronized. Therefore, it is possible to realize an effect according to the state of the object by lighting.

Moreover, in the lighting system 1 according to the present embodiment, the detection information includes at least one of information indicating the number of pulsations of the object and information indicating the temperature of the object.

According to this, it is possible to accurately recognize the state of the object. For this reason, the illumination system 1 can perform illumination consisting of the light emission mode, the first contour, and the second contour according to the detection information, that is, according to the state of the object. In other words, it is possible to realize an effect according to the state of the object by lighting.

Moreover, in the lighting system 1 according to the present embodiment, the control unit 70 changes the color temperature of the light emitted from the first light source 11 according to the detection information.

According to this, it is possible to change the color temperature of the ceiling surface and the floor surface. Therefore, it is possible to realize an effect according to the state of the object by lighting.

In addition, in the lighting system 1 according to the present embodiment, the imaging unit 110 is an imaging device that outputs an image obtained by imaging an object. In addition, the information processing device 5 recognizes an object appearing in the image output by the imaging unit 110 . Then, the information processing device 5 determines the light emission mode of the light emitted by the first light source 11 and the first contour according to the recognized object and the detection information.

According to this, by further recognizing the object, the state of the object can be grasped more accurately. Therefore, it is possible to realize an effect according to the state of the object by lighting.

Moreover, the lighting system 1 according to the present embodiment further includes a sound collector 120 that collects sounds around the object. Further, the control unit 70 determines the light emission mode of the light emitted by the first light source 11 and the first contour according to the sound pressure level collected by the sound collecting unit 120 .

According to this, the state of the object can be grasped more accurately by recognizing the sound around the object, for example, the sound level of the voice uttered by the object. Therefore, it is possible to realize an effect according to the state of the object by lighting.

Moreover, the lighting system 1 according to the present embodiment further includes an acoustic device 80 that outputs sound. Then, the acoustic device 80 outputs sound according to the object recognized by the information processing device and the detection information.

According to this, the sound can be output to the object. Therefore, it is possible to realize an effect according to the state of the object.

Moreover, the lighting system 1 according to the present embodiment further includes a fragrance device 130 that emits fragrance. Then, the fragrance device 130 emits fragrance according to the object recognized by the information processing device and the detection information.

According to this, it is possible to emit fragrance to the object. Therefore, it is possible to realize an effect according to the state of the object.

Further, the illumination system 1 according to the present embodiment further includes a second light source that emits light in a second direction opposite to the first direction in which the first light source 11 emits light, and a and a second contour forming part 40 for forming a second contour of the light emitted from the second light source. Then, the control unit 70 controls so that the light emission modes of the light emitted by the first light source 11 and the second light source are synchronized, and forms the first contour so that the first contour and the second contour are synchronized. The first contour forming section 30 and the second contour forming section 40 are controlled.

According to this, the light emission mode of the ceiling surface and the floor surface is synchronized with the outline of the ceiling surface and the floor surface, so that the space of the light can be represented more integrally. Therefore, the space formed by the light irradiation area and the other space appear to be more clearly separated.

(Other modifications)
As described above, the lighting device and the lighting system according to the present disclosure have been described based on the above embodiments, but the present disclosure is not limited to these embodiments. As long as they do not deviate from the spirit of the present disclosure, various modifications conceived by those skilled in the art may also be included within the scope of the present disclosure.

For example, in the lighting device and the lighting system according to the above-described embodiments, the number of users and the user presence area are recognized by the imaging device. A presence area may be detected. The human sensor may be mounted in the lighting device, may be mounted in the information processing device, or may be provided separately from the lighting device and the information processing device.

In addition, in the lighting device and the lighting system according to the above embodiments, the imaging unit or the processing unit may recognize the user's state such as the user's standing posture and sitting posture. The processing unit may change the size of the first contour illuminated by the illumination device according to such a user's posture. For example, in the sitting posture, the size of the first contour of the light emitted by the lighting device may be made larger than in the standing posture.

Moreover, in the lighting device and the lighting system according to the above embodiments, the lighting device has the first light source and the second light source, but may have only one light source. In this case, the light emitted by the light source may be divided into the first direction and the second direction by a lens or the like, and the light may be emitted in the first direction and the second direction.

Further, in the illumination device and the illumination system according to the above embodiments, the lights emitted by the first light source and the second light source may be halos forming the first contour and the second contour. That is, the light emitted by the first light source and the second light source may be ring-shaped light (that is, halo), and the object may be contained inside the halo.

Further, each processing unit included in the lighting device and lighting system 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.

Further, circuit integration is not limited to LSIs, and may be realized by dedicated circuits or general-purpose processors. An FPGA (Field Programmable Gate Array) that can be programmed after the LSI is manufactured, or a reconfigurable processor that can reconfigure connections and settings of circuit cells inside the LSI may be used.

In each of the above-described embodiments, each component may be configured by dedicated hardware, or realized 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.

In addition, the numbers used above are all examples for specifically describing the present disclosure, and the embodiments of the present disclosure are not limited to the illustrated numbers.

Also, 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. may Moreover, 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.

Also, the order in which 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.

It should be noted that any form obtained by applying various modifications that a person skilled in the art can come up with to the above-described embodiments, or by arbitrarily combining the constituent elements and functions in each embodiment without departing from the scope of the present disclosure. Any form is also included in the present disclosure.

1 lighting system 3 lighting device 5 information processing device 11 first light source 21 second light source 30 first contour forming unit 40 second contour forming unit 70 control unit 80 acoustic device 110 imaging unit (detection unit)
120 sound collector 130 fragrance device

Claims (14)

A lighting device for irradiating an object with light,
a first light source that emits light;
a detection unit that detects a state related to the objects including the number of the objects and an existence area in which the objects exist, and outputs detection information indicating the detected detection result;
a control unit that controls the form of the first contour of the light irradiated onto the irradiation surface by the first light source according to the detection information ;
The control unit controls the first contour to be wavy.
lighting device. A lighting device for irradiating an object with light,
a first light source that emits light;
a detection unit that detects a state related to the objects including the number of the objects and an existence area in which the objects exist, and outputs detection information indicating the detected detection result;
a control unit that controls the form of the first contour of the light irradiated onto the irradiation surface by the first light source according to the detection information;
The control unit controls the size of the first contour according to the number of the objects,
The first contour is annular,
The detection unit detects a first distance between the first light source and the object,
The control unit
when the first distance is equal to or less than a threshold, the diameter of the first contour is set as the first diameter;
if the first distance is greater than a threshold, the diameter of the first contour is set to a second diameter;
The second diameter is smaller than the first diameter
lighting device. a lighting device that irradiates an object with light;
a first light source that emits light;
a detection unit that detects a state related to the objects including the number of the objects and an existence area in which the objects exist, and outputs detection information indicating the detected detection result;
a control unit that controls the form of the first contour of the light emitted from the first light source onto the irradiation surface according to the detection information;
An information processing device that determines the light emission mode of the light emitted by the first light source and the first contour based on the detection information,
The light emission mode includes the color temperature and brightness of the light emitted by the first light source,
The detection information includes at least one of information indicating the number of pulsations of the object and information indicating the temperature of the object.
lighting system. a lighting device that irradiates an object with light;
a first light source that emits light;
a detection unit that detects a state related to the objects including the number of the objects and an existence area in which the objects exist, and outputs detection information indicating the detected detection result;
a control unit that controls the form of the first contour of the light emitted from the first light source onto the irradiation surface according to the detection information;
An information processing device that determines the light emission mode of the light emitted by the first light source and the first contour based on the detection information,
The control unit changes a color temperature of light emitted from the first light source according to the detection information.
lighting system. a lighting device that irradiates an object with light;
a first light source that emits light;
a detection unit that detects a state related to the objects including the number of the objects and an existence area in which the objects exist, and outputs detection information indicating the detected detection result;
a control unit that controls the form of the first contour of the light emitted from the first light source onto the irradiation surface according to the detection information;
an information processing device that determines a light emission mode of light emitted by the first light source and the first contour based on the detection information;
A sound collecting unit that collects sounds around the object,
The detection unit is an imaging device that outputs an image obtained by imaging the object,
The information processing device is
recognizing the object appearing in the image output by the detection unit;
Determining the light emission mode and the first contour of the light emitted by the first light source according to the recognized object and the detection information,
The control unit further determines the light emission mode of the light emitted by the first light source and the first contour according to the sound pressure level collected by the sound collecting unit.
lighting system. a lighting device that irradiates an object with light;
a first light source that emits light;
a detection unit that detects a state related to the objects including the number of the objects and an existence area in which the objects exist, and outputs detection information indicating the detected detection result;
a control unit that controls the form of the first contour of the light emitted from the first light source onto the irradiation surface according to the detection information;
an information processing device that determines a light emission mode of light emitted by the first light source and the first contour based on the detection information;
and an acoustic device that outputs sound,
The detection unit is an imaging device that outputs an image obtained by imaging the object,
The information processing device is
recognizing the object appearing in the image output by the detection unit;
Determining the light emission mode and the first contour of the light emitted by the first light source according to the recognized object and the detection information,
The acoustic device outputs sound according to the object recognized by the information processing device and the detection information.
lighting system. a lighting device that irradiates an object with light;
a first light source that emits light;
a detection unit that detects a state related to the objects including the number of the objects and an existence area in which the objects exist, and outputs detection information indicating the detected detection result;
a control unit that controls the form of the first contour of the light emitted from the first light source onto the irradiation surface according to the detection information;
an information processing device that determines a light emission mode of light emitted by the first light source and the first contour based on the detection information;
a fragrance device for generating fragrance,
The detection unit is an imaging device that outputs an image obtained by imaging the object,
The information processing device is
recognizing the object appearing in the image output by the detection unit;
Determining the light emission mode and the first contour of the light emitted by the first light source according to the recognized object and the detection information,
The fragrance device emits fragrance according to the object recognized by the information processing device and the detection information.
lighting system. a lighting device that irradiates an object with light;
a first light source that emits light;
a detection unit that detects a state related to the objects including the number of the objects and an existence area in which the objects exist, and outputs detection information indicating the detected detection result;
a control unit that controls the form of the first contour of the light emitted from the first light source onto the irradiation surface according to the detection information;
an information processing device that determines a light emission mode of light emitted by the first light source and the first contour based on the detection information;
a second light source that emits light in a second direction opposite to the first direction in which the first light source emits light;
A second contour forming part that forms a second contour of the light emitted by the second light source projected onto the irradiation surface,
The control unit controls such that the light emitting modes of the light emitted by the first light source and the second light source are synchronized, and the first contour and the second contour are synchronized so that the first contour and the second contour are synchronized. controlling a first contouring section to form a contour and the second contouring section;
lighting system. The lighting device according to claim 1 or 2, further comprising a first contour forming portion that forms a first contour of the light irradiated onto the irradiation surface by the first light source. The lighting device according to claim 9 , wherein the control section gradually changes the first contour by controlling the first contour forming section. The lighting device according to any one of claims 1 , 2, 9, and 10, wherein the control unit changes a light distribution angle of light emitted from the first light source. Further, it comprises a first contour forming part for forming a first contour of the light irradiated onto the irradiation surface by the first light source.
Illumination system according to any one of claims 3-8. The control section gradually changes the first contour by controlling the first contour forming section.
13. A lighting system according to claim 12. The control unit changes a light distribution angle of the light emitted by the first light source.
Illumination system according to any one of claims 3-8, 12, 13.

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