JP7001994B2 - Controls, lighting and lighting systems - Google Patents

Description

The present disclosure relates to a control device, a lighting device and a lighting system, and more particularly to a control device, a lighting device and a lighting system that simulates the appearance of a natural sky.

A lighting device including a liquid crystal panel which is a light source for varying light color and light distribution, a lamp for the liquid crystal panel, and a control device for controlling the light source for lighting is disclosed (see, for example, Patent Document 1). In this lighting device, it is possible to produce a natural lighting environment in which the tranquility of sunset, sunbeams, moonlight, etc. can be felt by variously changing the light intensity, light distribution, and color temperature.

Japanese Unexamined Patent Publication No. 11-144510

Although it is possible to simply realize the sky by using such a lighting device, there is a desire to intentionally give the user an awakening effect or a relaxing effect.

Therefore, it is an object of the present disclosure to provide a control device, a lighting device, and a lighting system capable of intentionally giving a wakefulness effect or a relaxing effect to a user.

In order to achieve the above object, the control device according to one aspect of the present disclosure is a control device for controlling a lighting device capable of reproducing the state of the sky in a simulated manner, and covers a region and clouds that reproduce the sky. The average value of the area ratio of the area ratio of the first video content consisting of the reproduced region and the region that reproduces the clouds to the region that reproduces the sky shown in the first video content at a predetermined time is higher than that of the first video content. Time for at least one of the storage unit for storing the second video content, which is also small, and the brightness distribution and the chromaticity distribution of the light emitted from the lighting device according to the first video content or the second video content. The lighting device includes a control unit that causes the lighting device to reproduce the first video content or the second video content by changing the lighting device, and the lighting device includes a first lighting device and the first lighting. The control unit includes the first lighting device and the first video content and the second video to be reproduced by the first lighting device and the second lighting device, including a second lighting device arranged at a position different from the device . When switching from the content and reproducing the first video content in the first lighting device, the second lighting device is turned on by the first output, and the second video content is used in the first lighting device. When the lighting device is used for reproduction, the second lighting device is turned on with a second output larger than the first output .

Further, the lighting device according to one aspect of the present disclosure includes a control device and a light source that emits light as the lighting device.

Further, the lighting system according to one aspect of the present disclosure includes a control device, a plurality of LED elements arranged in a plane, and a light diffusing plate that transmits and emits light emitted from the plurality of LED elements. It includes a first lighting device having the first lighting device and a second lighting device arranged at a position different from that of the first lighting device.

According to the present disclosure, it is possible to intentionally give the user an awakening effect or a relaxing effect.

FIG. 1 is an explanatory diagram showing a lighting system according to an embodiment. FIG. 2 is a block diagram showing a lighting system according to an embodiment. FIG. 3 is an exploded perspective view showing a first lighting device of the lighting system according to the embodiment. FIG. 4 shows an image projected on a light diffusing plate, a spectrum of light, an awakening effect, and brightness of light emitted by a second lighting device when the lighting system according to the embodiment operates in the relax mode or the awake mode. It is explanatory drawing which shows. FIG. 5 is a flow chart showing the operation of the lighting system according to the embodiment. FIG. 6 is a diagram showing the relationship between the operation terminal, the image projected on the light diffusing plate, the lighting state of the lighting system, and the area ratio of clouds and the second output. FIG. 7 is a flow chart showing the operation of the lighting system according to the first modification of the embodiment. FIG. 8 is a diagram showing a lighting state of the lighting system according to the second modification of the embodiment.

Hereinafter, embodiments of the present disclosure will be described with reference to the drawings. Each of the embodiments described below shows a preferred specific example of the present disclosure. Therefore, the numerical values, shapes, materials, components, arrangement positions of components, connection forms, and the like shown in the following embodiments are examples and are not intended to limit the present disclosure. Therefore, among the components in the following embodiments, the components not described in the independent claims indicating the highest level concept of the present disclosure are described as arbitrary components.

Further, the description of "abbreviated **" is intended to include not only a perfect rectangular shape but also a substantially rectangular shape, if it is explained by taking "substantially rectangular shape" as an example.

It should be noted that each figure is a schematic view and is not necessarily exactly illustrated. Further, in each figure, the same reference numerals are given to substantially the same configurations, and duplicate explanations will be omitted or simplified.

Hereinafter, the control device, the lighting device, and the lighting system according to the embodiment of the present disclosure will be described.

(Embodiment)
[Constitution]
FIG. 1 is an explanatory diagram showing a lighting system 1 according to an embodiment. FIG. 2 is a block diagram showing a lighting system 1 according to an embodiment. FIG. 3 is an exploded perspective view showing a first lighting device 10 of the lighting system 1 according to the embodiment.

The longitudinal direction when the first lighting device 10 is viewed in a plan view is defined as the X-axis direction, for example, the arrangement of the light reflecting member 30 and the light diffusing plate 40 is defined as the Z-axis direction, and the X-axis direction and the Z-axis are defined. The direction orthogonal to the direction is defined as the Y-axis direction, and each of the X, Y, and Z directions is displayed. Each direction shown in FIG. 1 is displayed corresponding to each direction shown in FIG. The same applies to the drawings after FIG. 2, except for the drawings in which the directions of X, Y, and Z are not displayed.

As shown in FIG. 1, the lighting system 1 according to the present embodiment is a device capable of giving a user a simulated experience of looking at the sky from a room through a window. For example, the lighting system 1 is installed indoors and is a system that simulates light that imitates a natural sky such as a blue sky, a cloudy sky, or an evening sky from an indoor window.

As shown in FIGS. 1 and 2, the lighting system 1 includes a first lighting device 10, a plurality of second lighting devices 90, a control device 100, and an operation terminal 150. In the present embodiment, one first lighting device 10 and a plurality of second lighting devices 90 in the lighting system 1 are arranged in the construction material.

[First lighting device]
The first lighting device 10 can simulate the appearance of a natural sky such as a blue sky, a cloudy sky, and an evening sky. The first lighting device 10 displays an image that imitates the movement of a natural sky such as a blue sky, a cloudy sky, and an evening sky. The first lighting device 10 can illuminate the surroundings with the light of an image that imitates the natural sky. The first lighting device 10 is connected to the control device 100, and the control device 100 controls operations such as lighting, extinguishing, dimming, and toning. The first lighting device 10 is a lighting fixture, a projector, or the like. The moving image here is a moving image, but may be a still image. The first lighting device 10 is an example of a lighting device.

The first lighting device 10 can emit chromatic light such as red light, blue light, yellow light, and orange light, and achromatic light such as white light. Further, the first lighting device 10 is not limited to the chromatic light, and can emit light in a predetermined color temperature range along the blackbody locus. Therefore, the first illuminating device 10 can also emit deep blue light from light having a low color temperature such as red.

As shown in FIGS. 1 to 3, the first lighting device 10 includes a housing 11, a light emitting module 20, a light reflecting member 30, a light diffusing plate 40, and a power supply unit 60. The power supply unit 60, the light emitting module 20, the light reflecting member 30, the light diffusing plate 40, and the frame unit 13 of the housing 11 are arranged in this order from the Z-axis positive direction to the Z-axis negative direction. The Z-axis plus direction is the ceiling side, and the Z-axis minus direction is the floor surface side.

The housing 11 is an accommodating body that houses the light emitting module 20, the light reflecting member 30, the light diffusing plate 40, and the power supply unit 60. The housing 11 is a flat box body and has a substantially rectangular shape in a plan view. The shape of the housing 11 is not limited to a substantially rectangular shape, but may be a substantially circular shape, a substantially polygonal shape, a substantially semicircular shape, or the like, and the shape is not particularly limited.

The housing 11 is made of, for example, a metal material or a non-metal material having high thermal conductivity. The non-metal material having high thermal conductivity is, for example, a resin having high thermal conductivity. By using a material having high thermal conductivity as the housing 11, the heat generated by the light emitting module 20 can be dissipated to the outside through the housing 11. The accommodating portion 12 and the frame portion 13 may be made of different materials.

The housing 11 has an accommodating portion 12 and a frame portion 13.

The accommodating portion 12 is a flat box body accommodating the light emitting module 20, the light reflecting member 30, the light diffusing plate 40, and the power supply unit 60. The power supply unit 60 may not be housed in the housing unit 12, and may be arranged outside the housing 11, for example.

The accommodating portion 12 is formed with an opening 15 on the surface on the negative side of the Z axis through which the light emitted by the light emitting module 20 passes. The opening 15 is covered with a frame 13 and a light diffusing plate 40. The accommodating portion 12 accommodates the light diffusing plate 40 arranged so as to cover the opening 15. The size of the opening 15 is a size corresponding to the light diffusing plate 40. In the present embodiment, the shape of the opening 15 is substantially rectangular.

The frame portion 13 is a frame-shaped member for fixing the light diffusing plate 40. The frame portion 13 is arranged at the edge of the Z-axis negative direction surface of the accommodating portion 12. In other words, the frame portion 13 is arranged on the surface of the accommodating portion 12 on the negative direction side of the Z axis so as to surround the opening portion 15 of the accommodating portion 12. The frame portion 13 is formed with an opening 16 through which the light emitted by the light emitting module 20 passes. The frame portion 13 has a substantially rectangular shape in a plan view, but is not limited to a substantially rectangular shape, and may have a substantially circular shape, a substantially polygonal shape, a substantially semicircular shape, or the like, and the shape is not particularly limited.

The frame portion 13 has a flange portion 13a and a rising portion 13b. The first lighting device 10 is arranged on the ceiling so that the flange portion 13a is flush with the ceiling surface. The rising portion 13b is a wall that rises substantially vertically from the end of the opening 16 which is the inner circumference of the flange portion 13a in the plus direction of the Z axis. The rising portion 13b supports the light diffusing plate 40 from the negative direction of the Z axis of the light diffusing plate 40.

The accommodating portion 12 and the frame portion 13 may be integrally formed to form the housing 11, or the accommodating portion 12 and the frame portion 13 are separate bodies, and the accommodating portion 12 and the frame portion 13 are combined. The housing 11 may be configured by adhering.

The light emitting module 20 is a module that emits light for forming an image on the light diffusing plate 40. The light emitting module 20 is held substantially parallel to the planes defined in the X-axis direction and the Y-axis direction.

The light emitting module 20 has a substrate 23 and a plurality of LED elements 22 mounted on the substrate 23.

The substrate 23 is a printed wiring board for mounting a plurality of LED elements 22, and is formed in a substantially rectangular shape. As the substrate 23, for example, a resin-based resin substrate, a metal-based metal-based substrate, a ceramic substrate made of ceramic, or the like can be used.

The LED element 22 is mounted on the substrate 23 in a posture of emitting light in the negative direction of the Z axis. A plurality of LED elements 22 are mounted on the surface of the substrate 23 on the negative direction side of the Z axis. For example, the plurality of LED elements 22 are a plurality of LED elements arranged in a plane (matrix) on the substrate 23. For example, the plurality of LED elements 22 are arranged on the substrate 23 at equal intervals. The LED element 22 is an example of a light source.

The LED element 22 is composed of an LED (Light Emitting Diode) element. The plurality of LED elements can emit white light, blue light, and orange light. In the present embodiment, for example, the LED element 22 is an RGB type LED element that emits blue light, green light, and red light. The LED element 22 may be an SMD (Surface Mount Device) type LED element or a COB (Chip On Board) type LED element 22. The LED element 22 is not limited to three RGB colors, and may be four RGBW colors or two BW colors (two blue and white colors).

Further, although not shown, the substrate 23 is provided with a signal line which is a wiring for transmitting a control signal from the control device 100 and a power line which is a wiring for supplying power from the power supply unit 60. For example, the signal line and the power line connect each of the plurality of LED elements 22 in series. Each of the plurality of LED elements 22 receives power from the power supply unit 60 via the power line, and emits predetermined light based on the control signal from the signal line. In the present embodiment, since the LED element 22 is an RGB type element, it is possible to emit light of various colors by controlling the emission of blue light, green light, and red light. That is, by controlling the light emission of each LED element 22 by the control device 100, for example, light indicating an image of a blue sky, a cloud, a cloudy sky, an evening sky, or the like can be emitted.

The light reflecting member 30 has a cylindrical shape, and at least a part thereof is arranged between the light emitting module 20 and the light diffusing plate 40. The light reflecting member 30 is an optical member having a property of reflecting the light emitted from the light emitting module 20. Specifically, the light reflecting member 30 reflects the light incident on the inner surface of the light reflecting member 30 from the light emitting module 20 toward the light diffusing plate 40 side. The inner surface is a surface on the light reflecting member 30 and the light emitting module 20 side.

The light reflecting member 30 is made of a metal material such as aluminum, and its inner surface surface is mirror-treated or light-diffused. For example, the mirror surface treatment is a polishing treatment or a lapping treatment. For example, the light diffusion treatment is a matte treatment such as an alumite treatment. The light diffusion treatment may be applied to at least the inner surface of the light reflecting member 30. Further, the light reflecting member 30 does not necessarily have to be mirror-finished or light-diffused, and may be a plain material before the mirror-finished or light-diffusing treatment.

The light diffusing plate 40 transmits and emits the light emitted from the plurality of LED elements 22. More specifically, the light diffusing plate 40 is a diffusing panel that transmits and diffuses light incident from a light incident surface, which is a surface on the Z-axis plus direction side of the light diffusing plate 40, and emits light from a light emitting surface. The shape of the light diffusing plate 40 is a shape corresponding to the opening 16 of the frame portion 13, and is substantially rectangular in a plan view, but is not limited to a substantially rectangular shape, and is not limited to a substantially rectangular shape, but is a substantially circular shape, a substantially polygonal shape, and a substantially semicircle. The shape may be a shape or the like, and the shape is not particularly limited.

The light diffusing plate 40 is arranged so as to face the light emitting module 20 on the Z-axis minus direction side of the light emitting module 20 and substantially parallel to the light emitting module 20. The light diffusion plate 40 is a plate material having a rectangular shape in a plan view. The light diffusing plate 40 covers the opening 16 of the frame portion 13. In a plan view, the light diffusing plate 40 is fixed to the frame portion 13 so as to cover the light emitting module 20. From this, when the light diffusing plate 40 and the plurality of LED elements 22 are viewed in a plan view, the shape of the opening 16 of the frame portion 13 corresponds to the shape in which the plurality of LED elements 22 are arranged on the substrate 23. In addition, it has almost the same shape.

In the present embodiment, the light diffusing plate 40 is supported in the accommodating portion 12 in a state of being sandwiched between the frame portion 13 and the light reflecting member 30. The light diffusing plate 40 may be fixed to the frame portion 13 or may be fixed to the light reflecting member 30, and is not limited to the present embodiment.

For example, the light diffusing plate 40 is manufactured by subjecting a transparent plate made of transparent acrylic, a resin material such as PET (Poly Ethylene Terephthalate), or glass to a diffusion process. Since the light diffusing plate 40 is made of a transparent material, the light diffusing plate 40 has a high transmittance. For example, the total light transmittance of the light diffusing plate 40 is 80% or more, more preferably 90% or more.

Diffusion processing is performed on at least one of the light incident surface and the light emitting surface of the light diffusing plate 40. For example, as the diffusion process, there is a prism process for forming a prism composed of fine dot-shaped recesses. Further, the diffusion processing is not limited to the prism processing, and may be performed by grain processing, printing, or dispersion of a light diffusing material.

The haze value of the light diffusing plate 40 subjected to the diffusion processing is, for example, 10% or more and 90% or less. By setting the haze value to 10% or more, even if the light diffusing plate 40 is made of a transparent material, it is possible to prevent the LED element 22 of the light emitting module 20 from appearing as particles from the user. Further, by setting the haze value to 90% or less, the outline of the image projected on the light diffusing plate 40 can be maintained to some extent. The haze value can be adjusted according to, for example, the shape and size of the prism formed by the prism processing. The outline of the image is, for example, the outline of a cloud in the blue sky.

The power supply unit 60 is a component that converts AC power supplied from a commercial power source into DC power of a predetermined level by rectifying, smoothing, stepping down, etc., and supplies the DC power to the light emitting module 20.

[Second lighting device]
The plurality of second lighting devices 90 are arranged at different positions from the first lighting device 10. In this embodiment, each second illuminating device 90 is arranged around the first illuminating device 10. Each of the second illuminating devices 90 is, for example, a downlight having a light source that emits light and an aperture cover as the second illuminating device 90. The second lighting device 90 is connected to the control device 100. Each second lighting device 90 is controlled by the control device 100 for operations such as lighting, extinguishing, dimming, and toning. The second lighting device 90 is, for example, a downlight, a ceiling light, or the like. The second illuminating device 90 is an example of the illuminating device.

Each second illuminator 90 is capable of emitting light in a predetermined color temperature range along the blackbody locus. Therefore, each of the second illuminating devices 90 can also emit deep blue light from light having a low color temperature such as red. Further, each of the second illuminating devices 90 is not limited to the color temperature, and can emit chromatic light such as red light, blue light, yellow light, and orange light.

[Control device]
The control device 100 is a device that controls the first lighting device 10 and each second lighting device 90. The control device 100 includes a control unit 110, a storage unit 120, and a communication unit 130.

The control unit 110 controls operations such as lighting, extinguishing, dimming, and toning of the first lighting device 10 and each of the second lighting devices 90 arranged around the first lighting device 10. It is a device. The control unit 110 controls the light emission of the first lighting device 10 so that the change in the amount of light emitted from the first lighting device 10, the change in the color temperature, or the change in the spectral distribution is within a predetermined range. .. Further, the control unit 110 sets each second lighting device so that the change in the amount of light emitted from each second lighting device 90, the change in the color temperature, or the change in the spectral distribution are also within a predetermined range. Controls the emission of 90. The toning here includes adjustment of emission color or color temperature.

The control unit 110 acquires the first video content or the second video content stored in the storage unit 120, which indicates the lighting state of the first lighting device 10. The control unit 110 temporally determines at least one of the luminance distribution and the chromaticity distribution of the light emitted from the first lighting device 10 according to the first video content or the second video content stored in the storage unit 120. By changing the content, the first video content or the second video content is reproduced by the first lighting device 10. Further, the control unit 110 controls the lighting of each of the second lighting devices 90 according to the first lighting device 10 that reproduces the first video content or the second video content.

The first video content is a video content including a region that reproduces the sky and a region that reproduces clouds. The region that reproduces the sky here includes a region that reproduces the blue sky, a region that reproduces the evening sky, a region that reproduces clouds, a region that reproduces a cloudy sky, and the like. In the first video content, the area ratio of the cloud-reproduced region to the sky-reproduced region within the first range changes in a predetermined time.

In the second video content, the average value of the area ratio of the area reproducing the cloud with respect to the region reproducing the sky shown in the first video content at a predetermined time is smaller than that of the first video content. That is, the video shown by the second video content has a larger region in which the blue sky is reproduced than the video shown by the first video content. In the second video content, the area ratio of the cloud-reproduced region to the sky-reproduced region changes within the second range, which is a ratio lower than the area ratio of the first range in a predetermined time.

The first video content and the second video content include natural sky such as blue sky content, cloud content, cloudy sky content, evening sky content, or a combination of these contents. Includes content that shows imitated footage. Each content is a lighting scene in which the first lighting device 10 is lit in a predetermined lighting state. When the first lighting device 10 projects the first video content or the second video content, the control unit 110 acquires the first video content or the second video content from the storage unit 120, and the acquired second. The light emission of the plurality of LED elements 22 of the light emitting module 20 is controlled according to the video content of 1 or the video content of the second. The control unit 110 controls the light emission of the plurality of LED elements 22 with the color tones corresponding to the video indicated by the first video content or the second video content. For example, the control unit 110 emits white light from each LED element 22 corresponding to the position of the cloud in the image, and emits blue light from each LED element 22 corresponding to the position of the blue sky in the image. The light emission of the plurality of LED elements 22 causes the light diffusing plate 40 to project an image corresponding to the first image content or the second image content.

The average value of the intensity of blue light contained in the light emitted by the first lighting device 10 based on the second video content for a predetermined time is the average value of the intensity of the blue light emitted by the first lighting device 10 based on the first video content. It is higher than the average value of the intensity of blue light contained in the emitted light for a predetermined time. That is, since the second video content has a larger area in which the blue sky is reproduced than the first video content, the intensity of the light emitted by the first lighting device 10 based on the first video content is higher than the intensity of the light emitted. The light emitted by the first lighting device 10 based on the video content of 2 has a higher intensity of blue light. Therefore, the light emitted by the first lighting device 10 based on the second video content has an awakening effect, and the light emitted by the first lighting device 10 based on the first video content has a relaxing effect. ..

As described above, the control unit 110 emits light to the first lighting device 10 based on the first video content and emits light to the first lighting device 10 based on the relax mode and the second video content. It has an awakening mode to make it. The control unit 110 switches between the relax mode and the awakening mode by switching between the first video content and the second video content to be reproduced by the first lighting device 10. The control unit 110 switches between the relax mode and the awakening mode by receiving a control command from the operation terminal 150 via the communication unit 130. Further, when the lighting interlocking is selected, the control unit 110 causes each second lighting device 90 to be illuminated and interlocked with the first lighting device 10. The control command is an instruction to switch to the relax mode, an instruction to switch to the awakening mode, and an instruction to link each of the second lighting devices 90 to the first lighting device 10.

Switching means, for example, setting the first lighting device 10 to the awakening mode when the first lighting device 10 is selected for the relax mode. As an example, when the first lighting device 10 is selected as the relax mode and the user selects the relax mode, the relax mode is maintained.

When switching between the relax mode and the awakening mode, the control unit 110 may switch instantly, or may switch so as to gradually transition from the relax mode to the awakening mode over a specified time, and may take a specified time to gradually transition to the awakening mode. You may switch to gradually transition from to relax mode. In this case, the area ratio of the clouds shown in the first video content is changed to the area ratio of the clouds shown in the second video content, or the area ratio of the clouds shown in the second video content is the first. It transitions to the area ratio of clouds shown in the video content. The area ratio of clouds is the area ratio of the area that reproduces clouds to the area that reproduces the sky.

FIG. 4 shows an image projected on the light diffusing plate 40, a light spectrum, an awakening effect, and light emitted by a second lighting device 90 when the lighting system 1 according to the embodiment operates in the relax mode or the awakening mode. It is explanatory drawing which shows the brightness of.

As shown in FIG. 4, in the relaxed mode video, the video displayed on the light diffusing plate 40 based on the first video content, and the area where the time and sky where the first video content is played are reproduced are reproduced. The relationship with the area ratio of the area where the clouds are reproduced is shown. In relax mode, the cloud area ratio is the first range from R1 to R2. The average value of the cloud area ratio is indicated by a1. The control unit 110 emits light from each LED element 22 so that the area ratio of the cloud reproduction region to the sky reproduction region is in the first range from R1 to R2 according to the first video content. Control the aspect.

The spectrum of light in the relax mode shows the average value of the light emitted by the first lighting device 10 based on the first video content for a predetermined time. In the relax mode, the light intensity of the blue component contained in the light is low. Therefore, in the relax mode, the awakening effect that the user awakens is small.

The control unit 110 turns on the second lighting device 90 with the first output when the first lighting device 10 reproduces the video content according to the first video content. That is, in the relax mode, the control unit 110 turns on the second lighting device 90 with the first output.

In the video in the awakening mode, the area of the video displayed on the light diffusing plate 40 based on the second video content and the area of the region where the clouds are reproduced with respect to the region where the time and sky where the second video content is reproduced are reproduced. It shows the relationship with the ratio. In the awakening mode, the cloud area ratio is the second range from T1 to T2. The average value of the cloud area ratio is shown by a2. The average value a2 is smaller than the average value a1. The control unit 110 emits light from each LED element 22 so that the area ratio of the cloud reproduction region to the sky reproduction region is in the second range from T1 to T2 according to the second video content. Control the aspect.

The spectrum of light in the awakening mode shows the average value of the light emitted by the first lighting device 10 based on the second video content for a predetermined time. In the awakening mode, the light intensity of the blue component contained in the light is high. Therefore, in the awakening mode, the awakening effect that the user awakens is large.

When the control unit 110 lights the first lighting device 10 and each of the second lighting devices 90, the control unit 110 interlocks the lighting state of each second lighting device 90 with the lighting state of the first lighting device 10. Can be made to. Specifically, the control unit 110 outputs the output of each of the second lighting devices 90 according to the change of the first video content reproduced by the first lighting device 10 or the video indicated by the second video content. Change. That is, the control unit 110 can perform lighting interlocking in which the lighting states of the first lighting device 10 and each of the second lighting devices 90 are interlocked. The output here means to include the first output and the second output.

The control unit 110 turns on the second lighting device 90 with a second output larger than the first output when the first lighting device 10 reproduces the content according to the second video content. That is, in the awakening mode, the control unit 110 turns on the second lighting device 90 with the second output. Therefore, the brightness of the light emitted by the second lighting device 90 in the awakening mode is brighter than the brightness of the light emitted by the second lighting device 90 in the relax mode.

The control unit 110 is a second lighting device so as to increase the first output or the second output as the second lighting device 90 is arranged at a position closer to the first lighting device 10. 90 is controlled. That is, the control unit 110 is first from the first lighting device 10 than the second output of the light emitted by the second lighting device 90 arranged at the first distance from the first lighting device 10. The second illuminating device 90 is controlled so that the second output of the light emitted by the second illuminating device 90 arranged at the second illuminating device 90 closer to the distance is larger than the second output.

For example, when installing each of the second lighting devices 90 on the construction material, the user stores the distance from the first lighting device 10 to each of the second lighting devices 90 via the operation terminal 150 in the storage unit 120. You may enter it in. The control unit 110 may control the light emitted by the second lighting device 90 according to the distance from the first lighting device 10 stored in the storage unit 120 to each of the second lighting devices 90. ..

The description returns to the description of the control device 100 shown in FIGS. 1 to 3.

The control unit 110 is electrically connected to the first lighting device 10 by a signal line. The control unit 110 includes information on the brightness of each of the blue LED, the green LED, and the red LED of the first lighting device 10 according to the first video content or the second video content acquired from the storage unit 120. The control signal is output to the LED element 22 of the first lighting device 10 via the signal line. The LED element 22 that has received the control signal emits blue, green, and red based on the control signal.

The control unit 110 outputs a control signal to the light emitting module 20 of the first lighting device 10, for example, at time intervals so that the movement of the image does not become unnatural. This makes it possible to display a more natural movement, for example, when displaying an image in which clouds are moving in the sky.

The storage unit 120 stores the first video content and the second video content. The storage unit 120 may be a non-volatile memory, for example, a volatile memory such as SRAM.

The communication unit 130 is a wireless communication module capable of communicating with the operation terminal 150. The communication unit 130 receives a control command from the operation terminal 150.

[Operation terminal]
The operation terminal 150 is a terminal capable of operating the first lighting device 10 and each second lighting device 90 via the control device 100. The operation terminal 150 has a display unit 152 and a communication unit 151. The display unit 152 is an operation for displaying the relax mode and the awakening mode when the user switches between the relax mode and the awakening mode, and when the first lighting device 10 and each of the second lighting devices 90 are linked by lighting. It is a panel. Further, the display unit 152 displays whether or not the lighting is interlocked when the first lighting device 10 and each of the second lighting devices 90 are interlocked with each other. The operation terminal 150 transmits a control command for switching between the relax mode and the awakening mode to the control device 100 via the communication unit 151 by operating the display unit 152 by the user. The communication unit 151 is a device capable of wirelessly communicating with the control device 100.

The operation terminal 150 is, for example, a smartphone, a tablet terminal, a remote controller, or the like. The user may read the lighting data stored in the storage unit 120 via the operation terminal 150, and newly set the lighting data for controlling the first lighting device 10 and each of the second lighting devices 90. You may be able to.

[motion]
Next, the operations of the control device 100, the first lighting device 10, the second lighting device 90, and the lighting system 1 will be described.

FIG. 5 is a flow chart showing the operation of the lighting system according to the embodiment.

In the following description of the operation, for example, it is assumed that the user selects the awakening mode when the relax mode is first selected, and the user selects the lighting interlocking. Further, since the awakening mode is selected first and the same applies when the user selects the relax mode, the description thereof will be omitted.

First, as shown in FIG. 5, the user can select the relax mode or the awakening mode by operating the operation terminal 150. Here, the user selects, for example, the awakening mode and selects the lighting interlocking. When the user selects a preferred mode via the operation terminal 150, the operation terminal 150 transmits a control command to the control device 100. In this embodiment, the control command indicates switching to the awakening mode. The control device 100 determines whether or not a control command has been received (S1).

Next, when the control command is received (YES in S1), the control unit 110 selects the video content stored in the storage unit 120 (S2). In the present embodiment, the control unit 110 selects the second video content corresponding to the awakening mode. The term video content means that the first video content and the second video content are collectively described.

On the other hand, when the control command has not been received (NO in S1), the control unit 110 returns to step S1 and performs the same processing.

Next, the control unit 110 controls the first lighting device 10 according to the selected video content (S3). In the present embodiment, the control unit 110 controls the lighting state of the first lighting device 10 according to the second video content. That is, when the user selects the second video content, the control unit 110 switches the first lighting device 10 from the relax mode to the awake mode.

Next, the control unit 110 determines whether or not each of the second lighting devices 90 is linked to the lighting of the first lighting device 10 (S4). The control unit 110 determines whether or not the control command acquired from the terminal device 150 includes information for interlocking lighting.

When each of the second lighting devices 90 is linked to the lighting of the first lighting device 10 (YES in S4), the control unit 110 controls each of the second lighting devices 90 according to the selected video content. (S5).

In the present embodiment, the control unit 110 of each second lighting device 90 is more likely than the case where each second lighting device 90 is turned on in the relax mode according to the second video content selected by the user. Lights up brightly. That is, the control unit 110 lights each second lighting device 90 at the second output. Further, when there are a plurality of second lighting devices 90, the control unit 110 has a first output or a first output as much as the second lighting device 90 arranged at a position closer to the first lighting device 10. The second lighting device 90 is controlled so as to increase the output of 2. This makes it possible to provide a lighting environment close to nature, in which a sky with many clouds feels dark and a sky with few clouds feels bright.

When the user selects the relax mode, the control unit 110 has a second lighting device 90 according to the first video content selected by the user, as compared with the case where the second lighting device 90 is turned on in the awakening mode. The lighting device 90 of 2 is dimly lit. That is, the control unit 110 lights each second lighting device 90 at the first output.

Then, the control unit 110 ends this process and returns to step S1.

On the other hand, when each of the second lighting devices 90 is not linked to the lighting of the first lighting device 10 (NO in S4), the control unit 110 ends this process and returns to step S1.

[summary]
In such a lighting system 1, the control unit 110 of the control device 100 determines the light emitting module 20 of the first lighting device 10 according to the first video content or the second video content stored in the storage unit 120. To control. As a result, the light emitted by the LED element 22 of the light emitting module 20 is reflected by the light reflecting member 30 and is incident on the light incident surface of the light diffusing plate 40, or is directly incident on the light incident surface of the light diffusing plate 40. .. Such light is transmitted and diffused through the light diffusing plate 40 and is emitted from the light emitting surface of the light diffusing plate 40.

FIG. 6 is a diagram showing the relationship between the image projected on the operation terminal 150, the light diffusing plate 40, the lighting state of the lighting system 1, and the area ratio of clouds and the second output.

FIG. 6A illustrates a case where the user operates the operation terminal 150 to select the awakening mode and interlocks with the lighting. FIG. 6B is an image diagram showing a lighting state of the lighting system 1 in the case of FIG. 6A. As shown in FIG. 6B, in the relax mode, one large cloud and the blue sky are projected on the light diffusing plate 40, and in the awakening mode, one small cloud and the blue sky are projected on the light diffusing plate 40. It is projected. FIG. 6C is an image diagram showing that the second lighting device 90, which is closer to the first lighting device 10, is lit brighter (the first output or the second output is larger). FIG. 6D is a diagram showing the relationship between the area ratio of clouds and the second output of the second lighting device 90 in the relax mode and the awake mode. In the awake mode, the second illuminating device 90 is lit with a second output that is larger than the case where the second illuminating device 90 is lit with the first output in the relax mode.

The control device 100 may have a table for lighting each second lighting device 90 at the second output as shown in FIG. 6D. In this case, the control unit 110 may read out the table stored in the storage unit 120 and control the lighting state of each second lighting device 90. This table may be included in the first video content and the second video content.

The control unit 110 sets a plurality of LED elements 22 so that the area ratio between the area reproducing the sky and the area reproducing the clouds becomes a predetermined ratio according to the first video content and the second video content. Control. As a result, an image corresponding to the lighting data is projected on the light diffusing plate 40. Therefore, the light diffusing plate 40 displays an image of the natural sky such as a change in the shade of the blue sky and a change in the clouds according to the lighting data.

[Action effect]
Next, the operation and effect of the control device 100, the first lighting device 10, the second lighting device 90, and the lighting system 1 in the present embodiment will be described.

As described above, the control device 100 according to the present embodiment controls the first lighting device 10 capable of simulating the appearance of the sky. The control device 100 determines the area ratio of the first video content including the region that reproduces the sky and the region that reproduces the clouds, and the region that reproduces the clouds to the region that reproduces the sky shown in the first video content. The storage unit 120 that stores the second video content whose average value in time is smaller than that of the first video content, and the first lighting device 10 emits light according to the first video content or the second video content. The control unit 110 is provided with a control unit 110 that causes the first lighting device 10 to reproduce the first video content or the second video content by changing at least one of the luminance distribution and the chromaticity distribution of the light with time. Then, the control unit 110 switches between the first video content to be reproduced by the first lighting device 10 and the second video content.

In this way, the control unit 110 switches between the first video content and the second video content to be reproduced by the first lighting device 10. Therefore, in the first video content, the image with less blue sky is displayed in the first lighting device 10, and in the second video content, the first lighting device 10 has more blue sky than in the case of the first video content. The image is displayed. That is, the user's awakening effect is expected in the second video content having a large blue sky, and the user's relaxing effect is expected in the first video content having a small blue sky.

Therefore, in the control device 100, by controlling the first lighting device 10, it is possible to intentionally give the user an awakening effect or a relaxing effect.

Further, the first lighting device 10 or the second lighting device 90 according to the present embodiment includes a control device 100 and a light source that emits light as the first lighting device 10 or the second lighting device 90. ..

Further, in the first lighting device 10 according to the present embodiment, the light source is a plurality of LED elements 22 arranged in a plane. The first lighting device 10 further includes a light diffusing plate 40 that transmits and emits light emitted from a plurality of LED elements 22. Then, the control device 100 controls a plurality of LED elements 22.

Also in these, the same action and effect as described above are obtained.

Further, in the control device 100 according to the present embodiment, in the first video content, the area ratio of the cloud-reproduced region to the blue sky-reproduced region within the first range changes in a predetermined time. Then, in the second video content, the area ratio of the cloud-reproduced region to the blue sky-reproduced region changes within the second range, which is a ratio lower than the area ratio of the first range in a predetermined time. ..

In the relax mode, if you simply look at the average value at a predetermined time, there are more clouds than in the awake mode. However, even in the relax mode, for example, if the number of clouds becomes extremely small for a specific time, the amount of blue light increases for that time, and the user is awakened. Therefore, in the first video content, the area ratio of the area where the cloud is reproduced is changed to the area where the blue sky is reproduced in the first range, and in the second video content, the blue sky is reproduced in the second range. Change the area ratio of the area that reproduces the cloud to the area. Therefore, the first lighting device 10 does not project an image in which clouds are extremely reduced for a specific time. Therefore, in this control device 100, the user can secure the stability between the awakening effect and the relaxing effect.

Further, in the control device 100 according to the present embodiment, the average value of the intensity of blue light contained in the light emitted by the first lighting device 10 based on the first video content for a predetermined time is the second. It is less than the average value of the intensity of blue light contained in the light emitted by the first lighting device 10 based on the video content for a predetermined time.

According to this configuration, when the first lighting device 10 is turned on based on the first video content, the user can expect a relaxing effect because there is less blue light, and the user can expect a relaxing effect, based on the second video content. When the first lighting device 10 is turned on, the user can expect an awakening effect because there is a lot of blue light.

Further, in the lighting device 10 according to the present embodiment, the plurality of LED elements 22 can emit white light, blue light, and orange light. Further, the first video content and the second video content include video content indicating a blue sky, clouds, cloudy sky, evening sky, or a combination thereof.

As described above, since the first video content and the second video content indicate a blue sky, a cloud, a cloudy sky, an evening sky, or a combination thereof, the first lighting device 10 reproduces a natural sky. Images can be projected.

Further, the lighting system 1 according to the present embodiment has a control device 100, a plurality of LED elements 22 arranged in a plane, and a light diffusing plate that transmits and emits light emitted from the plurality of LED elements 22. It includes a first illuminating device 10 having 40 and a second illuminating device 90 arranged at a position different from that of the first illuminating device 10. Then, when the control device 100 causes the first lighting device 10 to reproduce according to the first video content, the control device 100 turns on the second lighting device 90 at the first output and responds to the second video content. When the first lighting device 10 is used for reproduction, the second lighting device 90 is turned on with a second output larger than the first output.

As described above, when the control device 100 causes the first lighting device 10 to reproduce the first video content, the control device 100 turns on the second lighting device 90 with the first output or uses the second video content as the second. When the lighting device 10 of 1 is used for reproduction, the second lighting device 90 is turned on by the second output. Therefore, the control device 100 can control the first lighting device 10 and each of the second lighting devices 90 in conjunction with each other. As a result, the lighting system 1 can provide a lighting environment closer to nature.

Further, in the lighting system 1 according to the present embodiment, a plurality of second lighting devices 90 are provided. Then, the control device 100 has a second output so as to increase the first output or the second output as the second lighting device 90 is arranged at a position closer to the first lighting device 10. Controls the lighting device 90.

As described above, the control device 100 is so as to increase the first output or the second output as the second lighting device 90 is arranged at a position closer to the first lighting device 10. 2 controls the lighting device 90. As a result, the second lighting device 90 existing near the first lighting device 10 lights up brightly, and the second lighting device 90 far from the first lighting device 10 lights up darkly. Therefore, it is possible to suppress the discomfort given to the user caused by the difference between the brightness of the light emitted by the first lighting device 10 and the brightness of the light emitted by the second lighting device 90. As a result, in this lighting system 1, the periphery of the first lighting device 10 looks bright, so that a more natural lighting environment can be produced.

(Variation example 1 of the embodiment)
The control device 100, the first lighting device 10, the second lighting device 90, and the lighting system 1 according to this modification will be described. Unless otherwise specified, the configurations of the control device 100, the first lighting device 10, the second lighting device 90, and the lighting system 1 of this modification are the same as those of the embodiment, and the same configuration is the same. Reference numerals are given to omit detailed description of the configuration.

In this modification, another example of the operation of the lighting system 1 is shown. The operation of the control device 100, the first lighting device 10, the second lighting device 90, and the lighting system 1 will be described.

FIG. 7 is a flow chart showing the operation of the lighting system 1 according to the first modification of the embodiment.

In the following description of the operation, for example, it is assumed that the user selects the awakening mode when the relax mode is first selected, and the user selects the lighting interlocking. Further, since the awakening mode is selected first and the same applies when the user selects the relax mode, the description thereof will be omitted.

First, as shown in FIG. 7, the control unit 110 determines whether or not each of the second lighting devices 90 is linked to the lighting of the first lighting device 10 (S11).

When each of the second lighting devices 90 is linked to the lighting of the first lighting device 10 (YES in S11), the control unit 110 calculates the area ratio of the current cloud of the video content being played back (S12). Specifically, the control unit 110 sequentially calculates the area ratio of the clouds indicated by the video included in the video content being played.

On the other hand, when each of the second lighting devices 90 is not linked to the lighting of the first lighting device 10 (NO in S11), the control unit 110 ends this process and returns to step S11.

Next, the control unit 110 calculates the second output emitted by the second lighting device 90 from the area ratio of each cloud calculated in step S12 (S13). For example, according to the table of FIG. 6D, the control unit 110 calculates the second output emitted by the second lighting device 90, respectively.

Next, the control unit 110 controls each second lighting device 90 according to each second output calculated in step S13 (S14). Then, the control unit 110 ends this process and returns to step S11.

As a result, the control device 100 continuously monitors the area ratio of the clouds in the first video content or the second video content, and the second output of the second lighting device 90 according to the area ratio of the clouds. Is continuously changed. As a result, the second lighting device 90 is turned on with a brightness corresponding to the image projected by the first lighting device 10.

(Modification 2 of the embodiment)
[Constitution]
The configuration of the control device 100, the first lighting device 10, the second lighting device 90, and the lighting system 1 according to this modification will be described.

FIG. 8 is a diagram showing a lighting state of the lighting system 1 according to the second modification of the embodiment.

In the embodiment, the number of the first lighting device 10 is one, but in the modified example of the book, a plurality of first lighting devices 10 are arranged, which is different from the embodiment. Unless otherwise specified, the configurations of the control device 100, the first lighting device 10, the second lighting device 90, and the lighting system 1 of this modification are the same as those of the embodiment, and the same configuration is the same. Reference numerals are given to omit detailed description of the configuration.

As shown in FIG. 8, the control unit 110 of the control device 100 spatially divides the video indicated by the first video content or the second video content according to the number of the plurality of first lighting devices 10. , Generate multiple split information. The control unit 110 outputs an image indicated by each of the divided information according to the installation position of each of the first lighting devices 10. That is, the control unit 110 outputs each division information to each first lighting device 10 on a one-to-one basis. The control unit 110 inputs the divided information of the first video content and the second video content to each first lighting device 10 according to the installation position of each first lighting device 10. .. The user sets the divided video to which first lighting device 10 to be supplied via the operation terminal 150 based on the arrangement of the first lighting device 10.

More specifically, using the first video content, the first video content is spatially divided into three so as to correspond to the respective first lighting devices 10a, 10b, and 10c. Each of the first video contents divided into three is output one-to-one to each of the first lighting devices 10a, 10b, and 10c. That is, each of the first lighting devices 10a, 10b, and 10c projects the first video content spatially divided like a multi-display.

[Action effect]
As described above, in the lighting system 1 according to this modification, a plurality of first lighting devices 10 are provided. Then, the control device 100 spatially divides the video indicated by the first video content and the second video content, and outputs the divided video according to the installation position of each of the first lighting devices 10. ..

According to this, of the first video content and the second video content, the area corresponding to the installation position of each of the first lighting devices 10 is turned on. Therefore, when the user sees each of the first lighting devices 10, for example, clouds flow in this order of the first lighting device 10a, the first lighting device 10b, and the first lighting device 10c. Since it is possible to reproduce the state of movement, it is possible to project an image that reproduces the natural sky on each of the first lighting devices 10a, 10b, and 10c.

(Other deformation examples, etc.)
Although the present disclosure has been described above based on the embodiments and the modifications 1 and 2 of the embodiments, the present disclosure is limited to the above embodiments and the modifications 1 and 2 of the embodiments. It's not a thing.

For example, in the control device, the first lighting device, the second lighting device, and the lighting system according to the above-described embodiment and modifications 1 and 2 of the embodiment, the control device is provided in the first lighting device. It may be provided in the second lighting device, or may be provided as a device separate from the first lighting device and the second lighting device.

Further, each processing unit included in the control device, the first lighting device, the second lighting device, and the lighting system according to the above-described embodiment and modifications 1 and 2 of the embodiment is typically an integrated circuit. It is realized as an LSI. These may be individually integrated into one chip, or may be integrated into one chip so as to include a part or all of them.

Further, in the control device, the first lighting device, the second lighting device, and the lighting system according to the above-described embodiment and modifications 1 and 2 of the embodiment, the control device is used as a video content in the first lighting device. When the light emitted from the first lighting device is controlled accordingly, for example, the brightness distribution and the chromaticity distribution may be appropriately changed even in the blue sky indicated by the image included in the image content. That is, since the actual color of the blue sky used differs depending on the region, the storage unit may store a plurality of first video contents and a plurality of second video contents according to the region. The user may be able to select a region via the operating terminal. As a result, the control device selects the first video content or the second video content according to the area from the storage unit, and causes the first lighting device to reproduce the selected video content.

Further, in the control device, the first lighting device, the second lighting device, and the lighting system according to the above-described embodiment and modifications 1 and 2 of the embodiment, the control unit relaxes after a lapse of a predetermined time. You may switch between the mode and the awakening mode. That is, the control unit switches between the first video content and the second video content that are automatically reproduced by the lighting device after a predetermined time elapses without the user operating the operation terminal, thereby relaxing mode. Controls to switch between the awakening mode and the awakening mode. In this case, the user may be able to set a predetermined time for switching from the operation terminal.

Further, in the control device, the first lighting device, the second lighting device, and the lighting system according to the above-described embodiment and the modifications 1 and 2 of the embodiment, the first lighting device and the second lighting device May be able to communicate wirelessly. In this case, the operation terminal, the first lighting device, and the second lighting device may be able to wirelessly communicate with each other.

Further, in the control device, the first lighting device, the second lighting device and the lighting system according to the above-described embodiment and the modified examples 1 and 2 of the embodiment, the second lighting device is the first lighting device. It may be housed in the housing of. In this case, the second lighting device may be fixed to the flange portion 13a of the frame portion 13.

Further, the control device, the first lighting device, the second lighting device, and the lighting system according to the above-described embodiment and modifications 1 and 2 of the embodiment are programs for realizing a method and a method by a computer. May be good. The method is, for example, a control method for controlling a lighting device capable of reproducing the state of the sky in a simulated manner, and includes a first video content including an area that reproduces the sky and an area that reproduces clouds. The second video content in which the average value of the area ratio of the area ratio of the area reproducing the cloud to the region reproducing the sky shown in the first video content at a predetermined time is smaller than that of the first video content is stored, and the first video content is stored. The lighting device can illuminate the first video content or the second video content by temporally changing at least one of the brightness distribution and the chromaticity distribution of the light emitted from the lighting device according to the video content or the second video content. Includes replaying.

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

In addition, in each of the above-described embodiments and modifications 1 and 2 of the embodiments, each component is realized by being configured with dedicated hardware or by executing a software program suitable for each component. You may. Each component may be realized by a program execution unit such as a CPU or a processor reading and executing a software program recorded on a recording medium such as a hard disk or a semiconductor memory.

In addition, the numbers used above are all exemplified for the purpose of concretely explaining the present disclosure, and the embodiments of the present disclosure and the modified examples 1 and 2 of the embodiments are limited to the illustrated numbers. Not done.

In addition, the division of functional blocks in the block diagram is an example, and multiple functional blocks can be realized as one functional block, one functional block can be divided into multiple, and some functions can be transferred to other functional blocks. You may. Further, the functions of a plurality of functional blocks having similar functions may be processed by a single hardware or software in parallel or in a time division manner.

Further, the order in which each step in the flowchart is executed is for exemplifying the present disclosure in detail, and may be an order other than the above. Further, a part of the above steps may be executed simultaneously with other steps (parallel).

In addition, the embodiments obtained by subjecting various modifications to the embodiments and the modifications 1 and 2 of the embodiments that can be conceived by those skilled in the art, the embodiments, and the embodiments within the scope of the present disclosure. The present disclosure also includes a form realized by arbitrarily combining the components and functions in the first and second modifications.

1 Lighting system 10, 10a, 10b, 10c First lighting device (lighting device)
22 LED element (light source)
40 Light diffuser 90 Second lighting device (lighting device)
100 Control device 110 Control unit 120 Storage unit

Claims (9)

It is a control device that controls a lighting device that can reproduce the appearance of the sky in a simulated manner.
The average value of the area ratio of the area ratio of the area that reproduces the clouds to the area that reproduces the sky shown in the first video content and the first video content that consists of the area that reproduces the sky and the area that reproduces the clouds. Is a storage unit that stores a second video content smaller than the first video content, and
By temporally changing at least one of the luminance distribution and the chromaticity distribution of the light emitted from the lighting device according to the first video content or the second video content, the first video content or the first video content or the above. A control unit for reproducing the second video content on the lighting device is provided.
The illuminating device includes a first illuminating device and a second illuminating device arranged at a position different from that of the first illuminating device.
The control unit
Switching between the first video content and the second video content to be reproduced by the first lighting device and the second lighting device ,
When the first video content is reproduced by the first lighting device, the second lighting device is turned on with the first output.
A control device for lighting the second lighting device with a second output larger than the first output when the second video content is reproduced by the first lighting device. In the first video content, the area ratio of the cloud-reproduced region to the blue sky-reproduced region within the first range changes in the predetermined time.
In the second video content, the area ratio of the cloud-reproduced region to the blue sky-reproduced region changes within the second range, which is a ratio lower than the area ratio of the first range in the predetermined time. The control device according to claim 1. The average value of the intensity of blue light contained in the light emitted by the lighting device based on the first video content for a predetermined time is included in the light emitted by the lighting device based on the second video content. The control device according to claim 1 or 2, wherein the intensity of blue light is less than the average value for a predetermined time. The control device according to any one of claims 1 to 3, and the control device.
A lighting device including a light source that emits light as the lighting device. The light source is a plurality of LED elements arranged in a plane.
Moreover,
A light diffusing plate that transmits and emits light emitted from the plurality of LED elements is provided.
The lighting device according to claim 4, wherein the control device controls the plurality of LED elements. The plurality of LED elements can emit white light, blue light, and orange light.
The lighting device according to claim 5, wherein the first video content and the second video content include video content indicating a blue sky, clouds, cloudy sky, evening sky, or a combination thereof. The control device according to any one of claims 1 to 3, and the control device.
A first lighting device having a plurality of LED elements arranged in a plane and a light diffusing plate that transmits and emits light emitted from the plurality of LED elements.
The first lighting device is provided with a second lighting device arranged at a different position.
Lighting system. A plurality of the second lighting devices are provided, and the second lighting device is provided.
The control device has a second output so that the second lighting device arranged at a position closer to the first lighting device has a larger first output or the second output. The lighting system according to claim 7, which controls a lighting device. A plurality of the first lighting devices are provided, and the first lighting device is provided.
The control device spatially divides the first video content and the video shown by the second video content, and outputs the divided video according to the installation position of each of the first lighting devices. The lighting system according to claim 7 or 8.

Images