JP2019200915A - Illumination system and illumination method - Google Patents

Abstract

A lighting system and a lighting method capable of effectively affecting a psychological state according to a user's state.
An illumination system has a light emitting surface EP and emits light from the light emitting surface EP when a user of the space S is in a first state. And a control device 15 that controls the illumination device 20 so that the light emitting region is different from the light emitting region of the light emitting surface EP when the user is in the second state different from the first state.
[Selection] Figure 1

Description

  The present disclosure relates to an illumination system and an illumination method.

  Conventionally, a technique for producing a space by emitting light into the space has been proposed. For example, in patent document 1, the light from the light source which is concealed and cannot be directly visually recognized using the indirect illumination device installed on the wall surface called a surrounding edge unit is reflected by reflection on the reflection panel or the ceiling. By indirectly injecting into the space, the space is produced so that the height of the ceiling and the width of the wall are emphasized.

JP 2011-210594A

  In recent years, research has also been conducted on the influence that the color emitted by the lighting device may have on the psychological state of the space user. As a result of extensive studies by the present inventors, it has been found that changing the illumination method according to the user's state can effectively affect the psychological state. The present disclosure is based on such knowledge, and an object thereof is to provide an illumination system and an illumination method capable of effectively affecting a psychological state.

A first lighting system according to the present disclosure includes:
An illumination device having a light emitting surface and emitting light to the space;
When the user of the space is in the first state, the light emitting area of the light emitting surface is out of the light emitting surface when the user is in the second state different from the first state. A control device for controlling the lighting device so as to be different from the light emitting region.

In a first lighting system according to the present disclosure,
The controller is
When the user is in one of the first state and the second state, the light emitting area of the light emitting surface is in the one state. Beyond the range where you can be aware of the color on the surface,
When the user is in one of the first state and the second state, at least a part of the light emitting area of the light emitting surface is in the other state. So that the person can be aware of the color on the light emitting surface,
You may make it control the said illuminating device.

In a first lighting system according to the present disclosure,
The controller is
When the user is in the first state, the light emitting area of the light emitting surface is outside the range where the user in the first state can be aware of the color on the light emitting surface. ,
When the user is in the second state, the light emitting area of the light emitting surface is out of a range where the user in the second state can be aware of the color on the light emitting surface. So that
You may make it control the said illuminating device.

In a first lighting system according to the present disclosure,
The controller is
When the user is in the first state, at least a part of the light emitting area of the light emitting surface is conscious of the color on the light emitting surface by the user in the first state. Within the range of
When the user is in the second state, at least a part of the light emitting area of the light emitting surface is conscious of the color on the light emitting surface by the user in the second state. To be within the possible range,
The lighting system according to claim 1, wherein the lighting system is controlled.

  In the first lighting system according to the present disclosure, the range in which the user in the first state can be aware of the color on the light emitting surface is that the user in the second state is on the light emitting surface. It is different from the range where the color can be conscious.

In a first lighting system according to the present disclosure,
The range in which the user in the first state can be aware of the color on the light emitting surface is greater than the range in which the user in the second state can be aware of the color on the light emitting surface. Narrow,
The controller is
When the user is in the first state, the light emitting area of the light emitting surface is larger than the light emitting area of the light emitting surface when the user is in the second state. To be wide,
You may make it control the said illuminating device.

In a first lighting system according to the present disclosure,
The controller is
When the user is in the second state, the light emitting area of the light emitting surface is outside the range in which the user in the second state can be aware of the color on the light emitting surface. ,
When the user is in the first state, at least a part of the light emitting area of the light emitting surface is conscious of the color on the light emitting surface by the user in the first state. To be within the possible range,
You may make it control the said illuminating device.

In a first lighting system according to the present disclosure,
The controller is
When the user is in the second state, the light emitting area of the light emitting surface is outside the range expected by the user at an elevation angle of 30 ° or less and a depression angle of 30 ° or less,
When the user is in the first state, at least a part of the light emitting area of the light emitting surface is within a range that the user expects at an elevation angle of 10 ° or less and a depression angle of 10 ° or less. ,
You may make it control the said illuminating device.

In a first lighting system according to the present disclosure,
The controller is
When the user is in the first state, the light emitting area of the light emitting surface is outside the range in which the user in the first psychological state can be aware of the color on the light emitting surface. And
When the user is in the second state, at least a part of the light emitting area of the light emitting surface is conscious of the color on the light emitting surface by the user in the second state. To be within the possible range,
You may make it control the said illuminating device.

In a first lighting system according to the present disclosure,
The controller is
When the user is in the first state, the light emitting area of the light emitting surface is outside the range that the user expects at an elevation angle of 10 ° or less and a depression angle of 10 ° or less,
When the user is in the second state, at least part of the light emitting area of the light emitting surface is within a range that the user expects at an elevation angle of 30 ° or less and a depression angle of 30 ° or less.
You may make it control the said illuminating device.

In a first lighting system according to the present disclosure,
The range in which the user in the first state can be aware of the color on the light emitting surface is greater than the range in which the user in the second state can be aware of the color on the light emitting surface. Narrow,
The controller is
When the user is in the second state, the light emitting area of the light emitting surface is wider than the light emitting area of the light emitting surface when the user is in the first state. So that
You may make it control the said illuminating device.

In a first lighting system according to the present disclosure,
The controller is
When the user is in the first state, the light emitting area of the light emitting surface is outside the range where the user in the first state can be aware of the color on the light emitting surface,
When the user is in the second state, at least a part of the light emitting area of the light emitting surface can be conscious of the color on the light emitting surface by the user in the second state. To be within range,
You may make it control the said illuminating device.

In a first lighting system according to the present disclosure,
The controller is
When the user is in the first state, the light emitting area of the light emitting surface is outside the range that the user expects at an elevation angle of 30 ° or less and a depression angle of 30 ° or less,
When the user is in the second state, at least a part of the light emitting area of the light emitting surface is within a range that the user expects at an elevation angle of 40 ° or less and a depression angle of 40 ° or less,
You may make it control the said illuminating device.

A first lighting system according to the present disclosure is provided.
A detection sensor for detecting the state of the user;
The control device may control the lighting device based on a detection result of the detection sensor.

  In the first lighting system according to the present disclosure, the detection sensor may detect at least one of the user's blinking operation, the number of blinks, the state of the pupil, the direction of the line of sight, and the movement of the face.

  In the first illumination system according to the present disclosure, the detection sensor may include an imaging device that images a user.

In a first lighting system according to the present disclosure,
The controller is
The emission color of the light emitting surface when the user of the space is in the first state is different from the emission color of the light emitting surface when the user is in the second state,
You may make it control the said illuminating device.

  In the first lighting system according to the present disclosure, the light emitting surface may be provided on a wall that partitions the space.

  In the first illumination system according to the present disclosure, the amount of light emitted from a region of a certain area of the light emitting surface is a certain other area of the light emitting surface closer to the ceiling that defines the space than the region. It may be less than the amount of light emitted from the region.

  In the first illumination system according to the present disclosure, the amount of light emitted from an arbitrarily selected area of the light emitting surface is the other constant area of the light emitting surface that is closer to the ceiling that defines the space than the area. The amount of light emitted from the region may be equal to or less than the above.

  In the first lighting system according to the present disclosure, the amount of light emitted from a certain area within a range in which the user can be aware of the color on the light emitting surface is calculated by the user on the light emitting surface. It may be less than the amount of light emitted from a region of a certain area located outside the range where the color can be recognized.

  The first lighting system according to the present disclosure may further include a base lighting device provided on a ceiling that partitions the space.

A first illumination method according to the present disclosure includes:
A method of illuminating a space using a lighting device having a light emitting surface,
When the user of the space is in the first state, lighting the light emitting surface to emit light;
When the user of the space is in a second state different from the first state, illuminating the light-emitting surface by emitting light.
An area of the light emitting surface that emits light when the user is in the first state, and an area of the light emitting surface that emits light when the user is in the second state; Is different.

A second lighting method according to the present disclosure includes:
A method of illuminating a space using a lighting device having a light emitting surface,
Detecting whether the user of the space is in a first state or a second state different from the first state;
And illuminating the light emitting surface based on the detection result in the detection step,
An area of the light emitting surface that emits light when the user is in the first state, and an area of the light emitting surface that emits light when the user is in the second state; Make them different.

A second lighting system according to the present disclosure includes:
An illumination device having a light emitting surface and emitting light to the space;
A control device for controlling the lighting device,
The controller is
When the user of the space is in one of the first state and the second state different from the first state, the light emitting area of the light emitting surface is in the one state. The user is outside the range where the user can be aware of the color on the light emitting surface,
When the user is in one of the first state and the second state, at least a part of the light emitting area of the light emitting surface is in the other state. So that the person can be aware of the color on the light emitting surface,
The lighting device is controlled.

A third lighting method according to the present disclosure includes:
A method of illuminating a space using a lighting device having a light emitting surface,
When the user of the space is in the first state, the step of illuminating the light emitting surface to emit light;
When the user of the space is in a second state different from the first state, illuminating the light-emitting surface by emitting light.
When the user is in one of the first state and the second state different from the first state, the light emitting area of the light emitting surface is in the one state. Outside the range where the user can be aware of the color on the light emitting surface,
When the user is in the other state of the first state and the second state, at least a part of the light emitting area of the light emitting surface is used in the other state. Within a range where a person can be aware of the color on the light emitting surface.

A third lighting method according to the present disclosure includes:
A method of illuminating a space using a lighting device having a light emitting surface,
Detecting whether the user of the space is in a first state or a second state different from the first state;
And illuminating the light emitting surface based on the detection result in the detection step,
When the user is in one of the first state and the second state different from the first state, the light emitting area of the light emitting surface is in the one state. Outside the range where the user can be aware of the color on the light emitting surface,
When the user is in the other state of the first state and the second state, at least a part of the light emitting area of the light emitting surface is used in the other state. Within a range where a person can be aware of the color on the light emitting surface.

  According to the present invention, it is possible to effectively affect the psychological state of the user of the space.

FIG. 1 is a diagram for explaining an embodiment, and is a perspective view showing an illumination system. FIG. 2 is a plan view showing the illumination system shown in FIG. 1 from above. FIG. 3 is a longitudinal sectional view showing the lighting device of the lighting system shown in FIG. FIG. 4 is a longitudinal sectional view showing a specific example of the surface light source device of the illumination device included in the illumination system of FIG. FIG. 5 is a longitudinal sectional view corresponding to FIG. 4 and showing another specific example of the surface light source device. FIG. 6 is a longitudinal sectional view corresponding to FIG. 4 and showing still another specific example of the surface light source device. FIG. 7 is a block diagram showing the lighting system shown in FIG. FIG. 8 is a diagram for explaining a first example of an illumination method using the illumination system of FIG. FIG. 9 is a diagram for explaining a first example of an illumination method using the illumination system of FIG. FIG. 10 is a flowchart showing the illumination method shown in FIGS. FIG. 11 is a diagram for explaining a second example of an illumination method using the illumination system of FIG. FIG. 12 is a diagram for explaining a second example of an illumination method using the illumination system of FIG. FIG. 13 is a diagram for explaining a third example of an illumination method using the illumination system of FIG. FIG. 14 is a diagram for explaining a third example of an illumination method using the illumination system of FIG. FIG. 15 is a diagram for explaining a fourth example of an illumination method using the illumination system of FIG. FIG. 16 is a diagram for explaining a fifth example of an illumination method using the illumination system of FIG. FIG. 17 is a longitudinal sectional view corresponding to FIG. 4 and showing still another specific example of the surface light source device. FIG. 18 corresponds to FIG. 3 and is a longitudinal sectional view showing a modification of the lighting device. FIG. 19 is a view corresponding to FIG. 3 and a longitudinal sectional view showing another modified example of the illumination device. FIG. 20 is an exploded perspective view showing the lighting device shown in FIG. FIG. 21 is a view corresponding to FIG. 3 and a longitudinal sectional view showing still another modified example of the illumination device. FIG. 22 is a view corresponding to FIG. 3 and a longitudinal sectional view showing still another modified example of the illumination device.

  Hereinafter, the illumination system and illumination method according to the present embodiment will be described with reference to the drawings. In the drawings attached to the present specification, for the sake of illustration and ease of understanding, the scale, the vertical / horizontal dimension ratio, and the like are appropriately changed and exaggerated from those of the actual ones.

  Further, as used in the present specification, the shape and geometric conditions and the degree thereof are specified, for example, terms such as “parallel”, “orthogonal”, “identical”, etc. are not limited to strict meanings, Interpretation should include the extent to which similar functions can be expected.

  Further, in the present specification, the terms “sheet”, “film”, and “plate” are not distinguished from each other only based on the difference in designation. For example, the “plate” is a concept including a member that can be called a sheet or a film.

  In the drawings referred to in this embodiment and its specific examples and modifications, the same portions or portions having similar functions are denoted by the same or similar reference numerals, and repeated description thereof may be omitted. .

  1 to 22 are diagrams for describing an embodiment of the present disclosure, and illustrate some specific examples of a lighting system and a lighting method. Among these, FIG. 1 is a perspective view showing a specific example of the illumination system 10 according to the embodiment. FIG. 2 is a plan view showing the illumination system 10 of FIG. An illumination system 10 according to an embodiment described below includes an illumination device having a light emitting surface, and emits light into a space S. The lighting system 10 can work on the psychological state of the user H staying in the space S and cause the user H to have a desired psychological state. In particular, the lighting system described below is devised to effectively affect the psychological state of the user H in the space. More specifically, an appropriate psychological action according to the state of the user H can be exerted by changing the illumination mode according to the state of the user H.

  Hereinafter, an illumination system 10 and an illumination method according to an embodiment will be described with reference to the illustrated specific example.

  In the example shown in FIGS. 1 and 2, the illumination system 10 illuminates and produces the space S. The illustrated space S is partitioned by first to fourth walls W1 to W4, a ceiling CE, and a floor F. The space S is a rectangular parallelepiped space. This space S is a room or an interior space of a room that is intended to be used by humans. More specifically, a conference room, a work room, a classroom, a study room, an internal space of a self-study room, and the like can be exemplified as the space S illuminated by the lighting system 10. In the illustrated example, a table T and a chair C are provided in the center of the space S. The chair includes a first chair C1 disposed between the table T and the second wall W2, and a second chair C2 disposed between the table T and the first wall W1. An entrance D is provided in the fourth wall W4. It is possible to enter the space S and exit from the space S through the doorway D.

  The user H stays at a specific position in the space S like a general room or room. Specifically, the user H sits on the first chair C1 or the second chair C2 and performs some work or conference using the table T. That is, in the illustrated example, the user sits on the first chair C1 so as to face the first wall W1, or sits on the second chair C2 so as to face the second wall W2. A certain amount of time will be spent in the space S. The lighting system 10 is intended to exert a psychological effect on the user H who spends a certain time in a specific posture at a specific position in the space S.

  As shown in FIG. 1, the lighting system 10 includes a base lighting device 13 and a lighting device 20. The lighting system 10 further includes a detection sensor 18 that detects the state of the user H in the space S, and a control device 15 that adjusts the lighting control method by the lighting device 20 based on the detection result of the detection sensor 18. Have.

  As shown in FIGS. 1 and 2, the base lighting device 13 is attached to the ceiling CE and emits the illumination light Lx into the space S from above. The base lighting device 13 may be fixed to the ceiling CE or may be suspended from the ceiling CE. The base lighting device 13 assists in grasping the space S through human vision. Therefore, a general indoor lighting device can be used as the base lighting device 13. The illumination light Lx emitted from the base illumination device 13 is not particularly limited, but natural illumination can be achieved by using a white color.

  The lighting device 20 includes a decorative sheet 40 that forms the surface of the wall W, and a surface light source device 50 that illuminates the decorative sheet 40. The decorative sheet 40 forms a light emitting surface EP of the lighting device 20 that faces the light emitting surface 50 a of the surface light source device 50. Separately from the base illumination device 13 whose main purpose is to improve the brightness of the space S, the illumination device 20 causes the surface of the wall W to function as the light emitting surface EP, thereby providing an expansion to the finite space S. be able to. In particular, a limited range of the surface of the wall W can be used as the light emitting surface EP, and the surface light source device 50 serving as the light source of the lighting device 20 can be concealed by the decorative sheet 40. With this device, it is possible to produce the space S in a state where the presence of the light source is effectively diminished, thereby making it possible to effectively enhance the atmosphere of the space S.

  As illustrated in FIG. 2, the lighting device 20 includes first to fourth lighting devices 21 to 24. The first lighting device 21 is provided on the first wall W1 and emits light into the space S. The second lighting device 22 is provided on the second wall W2 and emits light into the space S. The third lighting device 23 is provided on the third wall W3 and emits light into the space S. The fourth lighting device 24 is provided on the fourth wall W4 and emits light into the space S. The first lighting device 21 is disposed in front of the user H seated on the first chair C1. The second lighting device 22 is disposed in front of the user H seated on the second chair C2.

  Although the installation positions differ, the 1st-4th illuminating devices 21-24 can have the same structure. Therefore, in the following, for the description common to the first to fourth lighting devices 21 to 24, the reference numeral “20” is used to distinguish the first to fourth lighting devices 21 to 24 without distinguishing them. It will be described as an explanation regarding the device 20.

  As described above, the lighting device 20 includes the decorative sheet 40 and the surface light source device 50 as main components. In the illustrated example, the lighting device 20 is formed in a plate shape as a whole, and a building material panel BP is configured by a part or all of the plate. As shown in FIG. 2, the building material panel BP may be stacked on the wall body WB to form the wall W of the structure together with the wall body WB. In such an example, all or a part of the components of the lighting device 20 may be handled as an assembly kit for producing a building material panel BP or a structure, and distributed or sold. Or you may make it the building material panel BP form the wall W of the structure which makes a building etc. independently.

  In one specific example shown in FIG. 3, the lighting device 20 includes an auxiliary building material 27, a fastener 28, and a board 30 in addition to the decorative sheet 40 and the surface light source device 50. 4 is a longitudinal sectional view showing the surface light source device 50 shown in FIG. Hereinafter, the lighting device 20 will be described with reference mainly to FIGS. 3 and 4.

  First, the decorative sheet 40 will be described. The decorative sheet 40 is exposed in the space S. The decorative sheet 40 forms the most light-emitting surface of the lighting device 20. That is, the decorative sheet 40 forms the light emitting surface EP of the lighting device 20. As the decorative sheet 40, an interior material such as a building wallpaper, a floor and a ceiling, an interior material of a moving body such as a vehicle, a member that forms the outermost surface of furniture, electrical equipment, and the like can be used.

  The decorative sheet 40 includes a first region Z1 and a second region Z2 adjacent to the first region Z1. The first region Z1 of the decorative sheet 40 is a region facing the light emission surface 50a of the surface light source device 50. That is, the first region Z1 of the decorative sheet 40 is a region where the light emitting surface WP of the lighting device 20 is formed. The second region Z2 is a region shifted from the position facing the light exit surface 50a of the decorative sheet 40.

  The decorative sheet 40 has visible light permeability at least in the first region Z1 that forms the light emitting surface WP. For this reason, at least a part of the light emitted from the light emitting surface 50 a of the surface light source device 50 can pass through the first region Z <b> 1 of the decorative sheet 40. Since the decorative sheet 40 is transmitted and illuminated in this manner, a white wallpaper having a relatively high transmittance is preferably used as the decorative sheet 40. However, even a wallpaper having a relatively low transmittance, such as a wood-tone wallpaper, can be transmitted and illuminated sufficiently effectively to achieve the effects described below, and the pattern of the decorative sheet 40 is not particularly limited. The visible light transmittance in the visible light region in the first region Z1 of the decorative sheet 40 is preferably 1.0% or more, and more preferably 10% or more. Visible light transmittance is measured using a visible infrared spectrophotometer (UV3100PC, manufactured by Shimadzu Corporation), in accordance with JIS A5759-2008, and measured in the wavelength range of 380 nm to 780 nm. It is calculated by a prescribed calculation formula.

  As shown in FIG. 3, the first region Z1 and the second region Z2 are arranged in a uniaxial direction. The first region Z1 is located on one side in the uniaxial direction, and the second region Z2 is located on the other side in the uniaxial direction. More specifically, the first region Z1 and the second region Z2 are arranged in the first direction d1. The first direction d1 is along the vertical direction in the illustrated example. The first region Z1 is located on the first side s1 in the first direction d1, and the second region Z2 is located on the second side s2 in the first direction d1. The first side s1 in the first direction d1 is the upper side in the vertical direction, and the second side s2 in the first direction d1 is the lower side in the vertical direction. That is, in the illustrated example, the light emitting surface EP of the lighting device 20 is located between the ceiling CE and the floor F on the side close to the ceiling CE. In other words, the light emitting surface EP of the lighting device 20 is located on the upper side in the vertical direction of the wall W.

  Next, the board 30 will be described. As shown in FIG. 3, the board 30 is a plate-like member. The board 30 is disposed so as to face at least the second region Z2 of the decorative sheet 40. The decorative sheet 40 may be bonded to the board 30. In this case, the decorative sheet 40 can be stably supported by the board 30.

  In the example shown in FIG. 3, the board 30 is disposed so as to face both the second region Z2 and the first region Z1. The board 30 is provided with a recess 31 at a position facing the first region Z1. A surface light source device 50 is accommodated in the recess 31 of the board 30. According to the example of FIG. 3, the surface light source device 50 can be stably supported by the board 30. The fastener 28 is provided on the board 30, and fixes the surface light source device 50 on the board 30. Further, the board 30 and the surface light source device 50 may be fixed by a bonding layer including an adhesive or an adhesive in addition to or in place of the fastener 28.

  The light emitting surface 50a of the surface light source device 50 is preferably located on the same plane as the surface 30a of the board 30 facing the second region Z2 of the decorative sheet 40. The decorative sheet 40 is laminated on the board 30 and the surface light source device 50 thus positioned. In this case, it becomes difficult to form a step between the surface 30 a of the board 30 and the light emitting surface 50 a of the surface light source device 50, and the design of the decorative sheet 40 resulting from the visual recognition of the step through the decorative sheet 40. Reduction can be effectively suppressed.

  The board 30 is determined according to the use of the decorative sheet 40. When the decorative sheet 40 is a member for decorating the surface of walls, floors, ceilings, etc., as an example, the board 30 is made of wood such as veneer, plywood, laminated timber, particle board, fiberboard, etc. made of wood from seed trees. It is an inorganic non-metal plate made of a plate material, a cement-based material such as concrete or mortar, gypsum board, calcium silicate, or the like, or a metal plate made of iron, aluminum or the like. When the decorative sheet 40 is an interior material for a moving body such as a vehicle, the board 30 is, for example, a resin plate or a metal plate. When the decorative sheet 40 forms furniture or an electrical product, the board 30 is, for example, a wooden plate material or a resin plate material. In the application of the lighting device 20 to the building material panel BP, the board 30 preferably has flame resistance and fire resistance.

  In FIG. 3, the decorative sheet 40 is illustrated with a gap between the board 30 and the surface light source device 50 as the fastener 28 is illustrated. However, it may be bonded to the board 30 and the surface light source device 50 without leaving a gap.

  The auxiliary building material 27 is a member provided at a joint portion or a corner portion between the ceiling CE and the wall W. The auxiliary building material 27 covers the joint between the ceiling CE and the wall W and improves the design. As the auxiliary building material 27, a member called “around edge” or “baseboard” can be used. However, the auxiliary building material 27 can be omitted. The auxiliary building material 27 extends in a direction orthogonal to the first direction d1. The auxiliary building material 27 may be fixed, or may be configured to be removable for replacement.

  Next, the surface light source device 50 that illuminates the decorative sheet 40 from the back will be described in detail. The surface light source device 50 has a light emission surface 50a that emits planar light. In the illustrated example, the surface light source device 50 is positioned such that the light emission surface 50a faces only a part of the decorative sheet 40. Various devices capable of emitting planar light can be used as the surface light source device 50. For example, a device having the light source 51 and an optical member 55 that converts light emitted from the light source 51 into planar light can be used as the surface light source device 50.

  Here, a specific example of the surface light source device 50 will be described mainly with reference to FIG. The surface light source device 50 shown in FIG. 4 is configured as an edge light type surface light source device. The surface light source device 50 includes a light source 51, a light diffusion sheet 56 as an optical member 55, a reflection sheet 57, and a light guide plate 60.

  The light source 51 includes a light emitter 52 that emits light. The light emitter 52 is not particularly limited, and various members that emit light can be widely used. Specifically, for example, a cold cathode tube, a point light emitting diode (LED), an incandescent light bulb, a laser oscillation device, or the like can be used as the light emitter 52 of the light source 51. In the illustrated example, the light source 51 has a plurality of dot-like light emitters 52. The light emitter 52 is constituted by, for example, a light emitting diode. In the illustrated example, the plurality of light emitters 52 are held by the auxiliary building material 27. The plurality of light emitters 52 are arranged at intervals along the second direction d2 shown in FIG. 2 which is the longitudinal direction of the auxiliary building material 27. The second direction d2 extends along one side edge of the light guide plate 60 and extends in the horizontal direction in parallel with the plate surface of the light guide plate 60. When the auxiliary building material 27 is removable, the plurality of light emitters 52 can be removed from the wall W together with the auxiliary building material 27, and a part or all of the plurality of light emitters 52 can be exchanged.

  It is known that the color of the illumination light emitted from the illumination system 10 affects the human psychological state. For example, when the space S is illuminated with a light green or reddish purple illumination light, the user H of the space S is energized. Similarly, it is said that when mauve illumination light or iris color illumination light is used, there is an effect of removing drowsiness from the user H. Moreover, when skin-colored illumination light is used, it is said that there is an effect of causing concentration on the user H. Furthermore, it is said that when amber-colored illumination light or skin-colored illumination light is used, there is an effect of giving comfort to the user H and making the user H in a relaxed state. The illumination system 10 of the present embodiment is intended to positively affect the psychological state of the user H with such illumination light and effectively affect the psychological state of the user H.

  In the illustrated example, light emitted from the light source 51 of the surface light source device 50 becomes illumination light from the illumination device 20. Therefore, the light emitter 52 of the light source 51 is selected so that light in a wavelength region corresponding to the desired psychological state can be emitted so that a desired psychological state can be generated in the user H. In particular, it is preferable that the color of light emitted from the light source 51 can be selected so that illumination can be performed with light of a desired color. As an example, the light source 51 may include a plurality of types of light emitters 52 that can emit light in different wavelength ranges. In this case, it is possible to perform illumination with various colors of illumination light by additive color mixing by adjusting the output of each light emitter 52. Typically, the light source 51 includes a light emitter that can emit red light, a light emitter that can emit green light, and a light emitter that can emit blue light. The color of the illumination light at can be selected from the entire range of colors on the chromaticity diagram.

  The light guide plate 60 is a plate-like member having a pair of main surfaces 60a and 60b and a side surface located between the pair of main surfaces 60a and 60b. One main surface forms a light exit surface 60a, and the other main surface forms a back surface 60b. The main surfaces 60a and 60b typically have a rectangular shape in plan view. The main surfaces 60a and 60b have a pair of side edges extending along the first direction d1 and a pair of side edges extending along a second direction d2 orthogonal to the first direction d1. The side surface includes a light incident surface 60c facing the first direction d1 and an opposite surface 60d (see FIG. 20).

  As shown in FIG. 4, the light incident surface 60c is located on the first side s1 in the first direction d1. The light incident surface 60c extends in the second direction d2 along the auxiliary building material 27. The light incident surface 60 c faces the plurality of light emitters 52 held by the auxiliary building material 27. The plurality of light emitters 52 are arranged at intervals along the second direction d2 which is the longitudinal direction of the light incident surface 60c.

  As shown in FIG. 4, the light emitted from the light source 51 enters the light guide plate 60 and travels through the light guide plate 60. The light guide plate 60 includes an extraction element 61. The extraction element 61 changes the traveling direction of the light L41 and L42 that travels in the light guide plate 60. In the surface light source device 50, the light emitted from the light source 51 enters the light guide plate 60 from the light incident surface 60 c and travels through the light guide plate 60 by being reflected, particularly totally reflected. The light L41 and L42 traveling in the light guide plate 60 is changed in the traveling direction by the extraction element 61, in particular, scattered, so that the light beams L41 and L42 are incident on the pair of main surfaces 60a and 60b of the light guide plate 60 at an incident angle less than the total reflection critical angle. Incident light can be emitted from the light guide plate 60.

  The light whose traveling direction is changed by the extraction element 61 is emitted from the light guide plate 60 through one of the pair of main surfaces 60a and 60b. A light diffusion sheet 56 is provided to face the light exit surface 60 a of the light guide plate 60. Next, the lights L41 and L42 emitted from the light exit surface 60a of the light guide plate 60 enter the light diffusion sheet 56. The light diffusion sheet 56 has a light diffusion function, and can adjust the luminance angle distribution caused by the transmitted light. The light diffusion sheet 56 forms the light emission surface 50 a of the surface light source device 50. The light diffused by the light diffusion sheet 56 is emitted from the surface light source device 50 and travels toward the decorative sheet 40. The light diffusion sheet 56 can employ various configurations that can exhibit a light diffusion function. The diffusion characteristics of the light diffusion sheet 56 may be isotropic or anisotropic.

  A reflective sheet 57 is provided facing the back surface 60 b of the light guide plate 60. The reflection sheet 57 can reflect the light emitted from the back surface 60 b and direct it to the light guide plate 60 and the light diffusion sheet 56. By providing the reflection sheet 57, the amount of light emitted from the light exit surface 50a of the surface light source device 50 can be increased. Thereby, the utilization efficiency of the light emitted from the light source 51 can be improved. The reflective sheet 57 can employ various configurations that can exhibit a light reflecting function. The reflection characteristic of the reflection sheet 57 may be regular reflection or diffuse reflection. The diffuse reflection characteristic of the reflection sheet 57 may be isotropic or anisotropic.

  As the extraction element 61, various elements that can change the traveling direction of light traveling through the light guide plate 60 can be used. In the example shown in FIG. 4, the light guide plate 60 has a plate-like light guide plate main body 65. The light guide plate main body 65 has an uneven surface 65a as a surface on which one main surface 60b of the light guide plate 60 is formed. In the illustrated example, the back surface 60b of the light guide plate 60 is formed by the uneven surface 65a. The uneven surface 65a is formed by providing the light guide plate body 65 with a recess 65b. In this example, the light guide plate main body 65 can be formed of a resin having visible light permeability.

  As another example, the extraction element 61 may be a light scattering layer 66 laminated on the light guide plate main body 65 as shown in FIG. In the example shown in FIG. 5, the light guide plate 60 includes a light guide plate main body 65 and a light scattering layer 66. The light scattering layer 66 includes a support layer 66a that functions as a binder, and a light scattering element 66b dispersed in the support layer 66a. The support layer 66a can be formed of a resin having visible light permeability. The light scattering element 66b has a function of changing the traveling direction of light traveling in the light scattering layer 66 by reflection, refraction, diffraction, or the like. The light scattering element 66b may have a refractive index different from that of the support layer 66a, or may be formed of a light reflective material such as a metal. As specific examples of the light scattering element 66b, a metal compound, a porous substance containing a gas, resin beads holding the metal compound around, white fine particles, bubbles, and particles having a refractive index different from that of the periphery can be exemplified. In the example shown in FIG. 5, the light L51 and L52 traveling in the light guide plate 60 due to reflection on the light exit surface 60a and the back surface 60b change the traveling direction by colliding with the light scattering element 66b in the light scattering layer 66. Then, the light can be emitted from the light guide plate 60.

  In the example of FIG. 5, the refractive index of the support layer 66 a of the light scattering layer 66 is preferably equal to or higher than the refractive index of the light guide plate body 65. When the refractive index of the support layer 66a of the light scattering layer 66 is lower than the refractive index of the light guide plate main body 65, the light L53 traveling in the light guide plate main body 65 is totally reflected at the interface between the light guide plate main body 65 and the light scattering layer 66. Thus, there is a possibility that the light cannot enter the light scattering layer 66. Such light L53 enters the light guide plate 60 from the light incident surface 60c and then travels through the light guide plate main body 65 to the opposite surface 60d. The presence of such light reduces the energy efficiency of the light source 51. By making the refractive index of the support layer 66a equal to or higher than the refractive index of the light guide plate body 65, total reflection at the interface between the light guide plate body 65 and the light scattering layer 66 is effectively prevented, and the light scattering layer 66 is taken out. It can function more effectively as element 61.

  As another example, as shown in FIG. 6, light scattering elements 67 functioning as extraction elements 61 may be dispersed in the light guide plate main body 65. In the light guide plate 60 shown in FIG. 6, the light L <b> 61 traveling in the light guide plate main body 65 can be scattered by colliding with the light scattering element 67 and emitted from the light guide plate 60. The light scattering element 67 can be configured similarly to the light scattering element 66b described above.

  The light guide plate 60 may include a plurality of types of extraction elements 61. In the example shown in FIG. 6, the light guide plate main body 65 of the light guide plate 60 includes a light scattering element 67 and further has an uneven surface 65 a constituting the back surface 60 b of the light guide plate 60.

  Further, the light scattering ability due to the extraction element 61 in each region of the light guide plate 60 is not constant and may be different. That is, the light scattering ability of the light guide plate 60 may change in each region along the plate surface. Furthermore, in other words, the light scattering ability in a certain area of the light guide plate 60 may be different from the light scattering ability in another area shifted from the area along the plate surface. By changing the light scattering ability in each region along the panel surface of the light guide plate 60, the amount of light emitted from each region can be adjusted.

  The light scattering ability is the strength of the ability of the light guide plate 60 to scatter light passing through the light guide plate 60. As an example, the degree of light scattering ability can be evaluated using a haze value [%] measured in accordance with JIS-K7361-1, and if the haze value [%] is high, the light scattering ability is high. It will be. Therefore, in the illustrated example, the transmission haze value transmitted in the normal direction to the plate surface of the light guide plate 60 may not be constant in each region of the light guide plate 60 but may have different values. The haze value [%] can be measured by a method based on JIS K7136 using a haze meter (manufactured by Murakami Color Research Laboratory, product number: HM-150).

  As shown in FIG. 4, when the extraction element 61 is an unevenness provided on the main surfaces 60 a and 60 b of the light guide plate 60, the area of the unevenness of the unit area along the plate surface is provided. By increasing the ratio, that is, the area ratio, the light scattering ability can be increased. Further, when the extraction element 61 is an uneven surface 65a formed by the concave portion 65b or the convex portion, the value of the ratio of the depth H1 of the concave portion 65b or the height of the convex portion to the thickness H2 of the light guide plate 60, That is, the light scattering ability can be increased by increasing the value of H1 / H2. When the extraction element 61 includes the light scattering elements 66b and 67 contained in the light guide plate 60, the volume ratio of the light scattering elements 66b and 67 in the light guide plate 60 is increased, the particle density is increased, and the particle size is increased. It is possible to increase the light scattering ability by increasing the difference in refractive index of the interface formed by the light scattering elements 66b and 67.

  By the way, in this Embodiment, the light emission area | region LZ which has actually emitted light toward the space S among the light emission surfaces EP of the illuminating device 20 can be changed. In particular, in the present embodiment, by changing the light emitting area LZ according to the state of the user H in the space S, for example, the psychological state, the working state, etc., an appropriate psychological action according to the state of the user H is exerted. Is possible.

  For example, the illustrated lighting device 20 is configured as an edge light type surface light source device. As described above, the light L41, L42, L51, and L52 traveling in the light guide plate 60 from the one side s1 to the other side s2 in the first direction d1 is acted on by the extraction element 61 and from the light guide plate 60. Eject. In such a surface light source device 50, when the amount of light incident from the light source 51 into the light guide plate 60 is small, the light does not reach the opposite surface 60 d of the light guide plate 60. That is, by adjusting the amount of light from the light emitter 52 of the light source 51, the size of the light emitting region LZ in the light emitting surface EP can be adjusted.

  More specifically, when the output of the light emitter 52 of the light source 51 is high, a large amount of light enters the light guide plate 60, and light is emitted from the entire light output surface 60 a of the light guide plate 60. At this time, the entire light emitting surface EP can be set as the light emitting region LZ. On the other hand, when the output of the light emitter 52 of the light source 51 is low, a small amount of light enters the light guide plate 60, and light is emitted only from the region on the one side s1 in the first direction d1 of the light exit surface 60a of the light guide plate 60. Exit. At this time, only the region on one side s1 in the first direction d1 in the light emitting surface EP can be set as the light emitting region LZ. That is, in the illustrated lighting device 20, the light emission region LZ is controlled from the end of the one side s1 in the first direction d1 of the light emitting surface EP in the first direction by controlling the amount of light emitted from the light emitter 52 of the light source 51. It is possible to control up to which position in d1. Further below, the length along the first direction d1 of the light emitting region LZ starting from the end of the one side s1 in the first direction d1 of the light emitting surface EP is controlled by adjusting the amount of light emitted from the light emitter 52. can do.

  In addition, when the illustrated surface light source device 50 is used, the amount of light emitted from a certain area of the light emission surface 50a can be distributed on the light emission surface 50a. As a result, the amount of light emitted from a certain area of the light emitting surface EP has a distribution on the light emitting surface EP. The distribution of the emitted light amount on the light emitting surface EP can be controlled by changing the light scattering ability of the extraction element 61 described above in the light guide plate 60. As an example, the amount of light emitted from a certain area of the light emitting surface EP increases on one side s1 close to the light source 51 in the first direction d1. On the other hand, the amount of light emitted from the area of the light emitting surface EP with a constant area decreases on the other side s2 that is separated from the light source 51 in the first direction d1. That is, the amount of light emitted from a region having a certain area on the light emitting surface EP is larger than the amount of light emitted from another region having a certain area on the light emitting surface EP that is closer to the ceiling CE that defines the space S than that region. Less. Furthermore, the amount of light emitted from a region having a certain area that is arbitrarily selected on the light emitting surface EP is the amount of light emitted from another region having a certain area near the ceiling CE that divides the space S. It becomes as follows.

  Note that the amount of light emitted from a region having a constant area on the light emitting surface EP can be evaluated based on the measurement result of the illuminance [lx] measured by bringing the sensor into close contact with the light emitting surface EP. For measurement of illuminance, an illuminometer TR-74Ui manufactured by T & D Co., Ltd. is used.

  Next, the control device 15 and the detection sensor 18 will be described. FIG. 7 is a block diagram showing the lighting system 10. As shown in FIG. 7, the detection sensor 18 is electrically connected to the control device 15. The control device 15 is also electrically connected to the first to fourth lighting devices 21 to 24. The control device 15 controls the first to fourth illumination devices 21 to 24 based on the detection result of the detection sensor 18.

  First, the detection sensor 18 detects the state of the user H in the space S. As a state of the user H, a psychological state and a working state can be illustrated. Examples of the psychological state may include a state of drowsiness, a state of concentration, a state of distraction and distraction, a state of alertness or tension, a state of relaxation or calmness, and the like. Examples of the working state include a state where a small device such as a computer is being operated, a state where students are studying, a state where a book is being read, a state where conversation, discussion, and a meeting are being performed.

  The detection sensor 18 detects one or more of the blinking operation, the number of blinks, the pupil state, the line-of-sight direction, and the facial movement of the user H. By detecting the state of the pupil, it is possible to grasp the state in which the user H is drowsy or concentrated. By detecting the blink operation, the number of blinks, and the direction of the line of sight, it is possible to detect a state in which the user H is distracted and distracted, or a state in which the user is alert or nervous. By detecting the direction of the line of sight, the movement of the face, etc., it is possible to detect the state where the user H is concentrated. By detecting the state of the pupil, the direction of the line of sight, the movement of the face, etc., it is possible to detect a state in which the user H is relaxed or calm. Further, the user's work content can be grasped by detecting the direction of the line of sight, the movement of the face, and the like.

  As such a detection sensor 18, an imaging device that images the user H can be used. A camera or smart glass can be used as the imaging device. According to the imaging apparatus, in addition to the operation of the user H described above, it is also possible to detect a change in face color, body temperature, heart rate, and the like. In the example shown in FIGS. 1 and 2, the detection sensor 18 is provided on each of the ceiling CE and the first to fourth walls W1 to W4. For example, the plurality of detection sensors 18 can detect the state of the user H seated on the first chair C1 and the second chair C2.

  Further, as the detection sensor 18, a line-of-sight sensor that detects the direction of the line of sight or an electroencephalograph that detects an electroencephalogram can be used. The electroencephalograph can function as a sensibility analyzer that analyzes sensibilities such as curiosity, stress, concentration, calmness, comfort, disgust, and exhilaration based on the electroencephalogram. By incorporating a plurality of types of sensors into the lighting device 20 as the detection sensor 18, the state of the user H can be grasped more accurately. Furthermore, as the detection sensor 18, various means for detecting a human state, for example, physical condition, for example, means for measuring a heart rate, a pulse, a myoelectric potential, or the like can be used. The detection sensor 18 may be mounted or mounted on the user H in the space S.

  In the illustrated example, the detection sensor 18 can detect the presence or absence of the user H in the space S. The detection sensor 18 can detect the presence or absence of the user H by imaging the face and appearance of the user H and detecting the body temperature of the user H.

  Next, the control device 15 will be described. The control device 15 controls the emission of illumination light from the illumination device 20. In particular, in the present embodiment, the control device 15 can control the size of the light emitting region LZ. The control device 15 can control the output from each light emitter 52 by controlling the power supplied to each light emitter 52 of the surface light source device 50 from a power source (not shown), for example.

  In the illuminating device 20 shown in the drawing, a light emitting region LZ in which a region from the end portion which is one side s1 in the first direction d1 to a certain length along the first direction d1 in the light emitting surface EP actually emits light. It becomes. And the length along the 1st direction d1 of the light emission area | region LZ can be adjusted by adjusting the output of each light-emitting body 52. FIG. Specifically, by increasing the output of each light emitter 52, the length of the light emitting region LZ along the first direction d1 is increased, and by reducing the output of each light emitter 52, the first of the light emitting region LZ. The length along the direction d1 is shortened.

  Further, the control device 15 can control the color of the illumination light by adjusting the output of each light emitter 52. As described above, the light source 51 of the illumination device 20 includes a plurality of types of light emitters 52 that can emit light in different wavelength ranges. In this case, the color of the illumination light can be controlled to various colors by additive color mixing. Therefore, the control device 15 can change the emission color by adjusting the output of each light emitter 52, and can color the emission region LZ of the emission surface EP with a desired color. As already mentioned, a predetermined psychological state can be caused to the user H according to the color of the illumination light.

  A specific aspect of the control device 15 is not particularly limited. As an example, the control device 15 illustrated in FIG. 7 includes a storage unit 15a, a calculation unit 15b, and an injection control unit 15c. The storage unit 15a stores information used by the control device 15 to control light emission by the lighting device 20. For example, the storage unit 15a may store a preferable size of the light emitting area LZ corresponding to each state of the user H, a preferable color of illumination light corresponding to each state of the user H, and the like. The calculation unit 15b calculates the light emission output of each light emitter 52 included in the illumination device 20 based on the information stored in the storage unit 15a. The injection controller 15c adjusts the power supply to the light emitter 52 of the lighting device 20 so that the light emitter 52 emits light with the light emission output calculated by the calculator 15b.

  The control device 15 is incorporated in, for example, an electric circuit that supplies power from the power source to the light emitter 52 of the light source 51, and stores a control circuit that controls the operation of circuit elements of the electric circuit and data used for processing of the control circuit. It consists of hardware such as storage devices. At least a part of the control device 15 may be configured by software.

  All of the control device 15 may be provided outside the building material panel BP, or at least a part thereof may be provided inside the building material panel BP or behind the ceiling CE. In addition, the control device 15 may be configured such that a part of the components can cooperate with other components by communication via a network. In addition, the control device 15 may have a part of the components on a device that can communicate with other components via an external network, such as a server or database on the cloud. Further, the control device 15 may be connected to a plurality of lighting devices 20 that illuminate different spaces S through a network such as the Internet. In this example, one control device 15 can control illumination in the spaces S that are separated from each other.

  Next, the illumination method of the illumination system 10 having the above configuration will be described.

  In the present embodiment, when the user H of the space S is in the first state, the light emitting area LZ that is actually emitting light in the light emitting surface EP is the second state in which the user H is different from the first state. The light emitting surface EP of the light emitting surface EP is different from the light emitting region LZ that actually emits light.

  It is known that the color of the illumination light of the lighting device 20 can affect the psychological state of the user H in the space S. For example, light green and reddish purple act on human psychological state to cause “liveness” and “aggressiveness”. In addition, the mauve and iris colors affect the human psychological state so as to remove “sleepiness”.

  Furthermore, as a result of repeated investigations by the present inventors, when a human can be aware of the color on the light emitting surface EP of the lighting device 20, that is, when the human is aware of the color of the light emitting surface EP, the human psychological state It was able to quickly lead to the psychological state that targeted the human psychological state. On the other hand, not only the conscious influence range XA on the light emitting surface EP where the human can be aware of the color but also the region on the light emitting surface EP other than the conscious influence range XA, that is, the color of light emitted from the unconscious influence range YA. It was confirmed that it can affect human psychological state. The human is unconsciously influenced by the color of the illumination light Ly that has reached the eye, and is led to a predetermined psychological state corresponding to the color of the illumination light Ly. When the light emitting area LZ on the light emitting surface EP is set only within the unconscious influence range YA, it is extremely effective for continuously maintaining the psychological state after the target psychological state is obtained. Further, when the illumination light Ly is emitted only from the unconscious influence range YA, the human does not put the colored range on the light emitting surface EP into the field of view, and can effectively prevent distraction.

  Therefore, by changing the size of the light emitting area LZ in the light emitting surface EP according to the state of the user H in the space S illuminated by the lighting device 20, it is effective for the psychological state of the user H. I can work on it.

  Hereinafter, based on some specific examples, the illumination method of the present embodiment will be further described in detail. However, in a plurality of specific examples described below, the same portion or a portion having a similar function is denoted by the same reference symbol or a similar reference symbol, and repeated description thereof may be omitted.

  In addition, the specific example demonstrated below is the illumination method using the illuminating device 20 mentioned above. However, in the following description and the drawings referred to in the following description, the psychological state of the user H who is seated on the first chair C1 is acted using the first lighting device 21 arranged facing the user. An example is shown. In these examples, the second to fourth lighting devices 22 to 24 emit light in the same color as the first lighting device 21 from the light emitting area LZ having the same size as the first lighting device 21. You may make it do. Alternatively, the emission of light may be stopped from the second to fourth illumination devices 22 to the fourth illumination device 24.

(First example)
First, the first example will be described with reference to FIGS.

  In the first example shown in FIGS. 8 and 9, the detection sensor 18 can first detect the presence or absence of the user H in the space S. Moreover, the detection sensor 18 detects the state where the user H of the space S feels sleepy as the first state. As an example, the detection sensor 18 can detect whether or not the user feels drowsy by observing the position of the heel or the movement of the heel.

  When the detection sensor 18 detects that the user H is in the space S, the control device 15 turns on the base illumination device 13 and the illumination device 20. At this time, as an example, the base illumination device 13 emits illumination light Lx having the same color as natural light. Thereby, the inside of the space S becomes bright with a natural feeling. On the other hand, the illuminating device 20 emits illumination light Ly having a color that causes a target psychological state from the light emitting surface EP. In this example, the illuminating device 20 adjusts the output of each light emitter 52 so as to emit mauve light or iris light that is said to have the effect of removing drowsiness.

  Note that the amount of light emitted from the base illumination device 13 for the purpose of brightening the space S works on the psychology of the user H to cause the user H to have a target psychological state. More than the amount of light emitted from 20 is set.

  When the detection sensor 18 detects that the user H is in the first state and feels sleepy, the control device 15 does not detect that the user H feels sleepy. The light emitting area LZ is set to a size different from the state. In particular, in the first example, as illustrated in FIG. 8, when the user H is in the first state in which the user H feels drowsy, the control device 15 receives the illumination light Ly from the first light emitting region LZ1 in the light emitting surface EP. Eject. As shown in FIG. 9, when the user H is in the second state where the user H does not feel sleepy, the control device 15 emits the illumination light Ly from the second light emitting region LZ2 of the light emitting surface EP.

  The first light emitting region LZ1 and the second light emitting region LZ2 are regions that extend along the first wall W1. As shown in FIGS. 8 and 9, the first light emitting region LZ1 and the second light emitting region LZ2 spread along the first direction d1. The length of the first light emitting region LZ1 along the first direction d1 is longer than the length of the second light emitting region LZ2 along the first direction d1. Further, the first light emitting region LZ1 and the second light emitting region LZ2 also extend in the second direction d2 along the depth direction of the paper surface in FIGS. The length of the first light emitting region LZ1 along the second direction d2 is the same as the length of the second light emitting region LZ2 along the second direction d2. As a result, the first light emitting region LZ1 is wider than the second light emitting region LZ2.

  Here, in FIGS. 8 and 9 and FIGS. 11 to 16 to be described later, the consciousness influence range that is a range in which the user H seated on the first chair C1 can be aware of the color on the light emitting surface EP. XA is shown. In these figures, the angle range in which the color can be recognized is shown as a range sandwiched between two straight lines La and Lb. The user H can notice the color change in the consciousness influence category XA in each state in the space S. On the contrary, the user H cannot notice the color change in the unconscious influence range YA outside the conscious influence range XA. As shown in FIGS. 8 and 9, the consciousness influence range XA in the first state where sleepiness is different from the consciousness influence range XA in the second state where there is no sleepiness. The consciousness influence range XA in the first state of sleepiness is the range in which the inventors have conducted an experiment and are expected to be within an elevation angle of 10 ° or less and a depression angle of 10 ° or less with respect to the horizontal direction from the position of the user's eyes. I was able to think that it is located in. In addition, it is considered that the consciousness influence range XA in the second state as a normal state without drowsiness is located within a range expected from the position of the user's eyes at an elevation angle of 30 ° or less and a depression angle of 30 ° or less with respect to the horizontal direction. I was able to.

  As shown in FIG. 8, in the first state where sleepiness is felt, the light emitting region LZ extends to the consciousness influence range XA. That is, the user H who feels sleepy can notice the coloring of the light emitting surface EP due to the illumination light Ly in the light emitting surface EP. As a result of repeated investigations by the present inventors, when a human can be aware of the color on the light emitting surface EP of the lighting device 20, that is, when the human can notice the color of the light emitting surface EP, the psychological state of the human being is large. It was able to bring an influence and quickly lead to the psychological state of interest that is the human psychological state. Therefore, when the user H is in the first state, the user H receives a strong psychological effect due to the color of the illumination light Ly. That is, in the illustrated example, drowsiness can be positively removed from the user H who feels drowsiness.

  On the other hand, as a result of repeated studies by the present inventors, not only the conscious influence range XA on the light emitting surface EP where the human can be aware of the color, but also the region on the light emitting surface EP that is outside the conscious influence range XA, that is, unconscious. It was confirmed that the color of light emitted from the influence range YA can also affect the human psychological state. Light emitted from the unconscious influence range YA can also reach the eyes of the user H by reflection or the like. The user H is abruptly influenced by the color of the illumination light Ly that reaches the eye, and is led to a predetermined psychological state corresponding to the color of the illumination light. In particular, when the light emitting area LZ on the light emitting surface EP is set only within the unconscious influence range YA, it is extremely effective for continuously maintaining the psychological state after the target psychological state is obtained. Further, when the illumination light is emitted only from the unconscious influence range YA, the human does not enter the colored range on the light emitting surface EP into the field of view. Thus, distraction can be effectively prevented. That is, in the illustrated example, the user H who does not feel drowsiness can be effectively and continuously prevented from becoming sleepy.

  In the first example shown in FIGS. 8 and 9, the light emitting region LZ also varies with the variation of the consciousness influence range XA between the first state and the second state of the user H. More precisely, from the first state to the second state in accordance with the fluctuation of the one side s1 edge in the first direction d1 of the consciousness influence range XA between the first state and the second state of the user H. The other side s1 edge in the first direction d1 of the consciousness influence range XA varies. As a result, the consciousness influence range XA is expanded from the first state to the second state of the user H, while the light emitting region LZ is narrowed from the first state to the second state.

  As shown in FIG. 9, the fluctuation amount AC1 of the one side s1 edge in the first direction d1 of the consciousness influence range XA between the first state and the second state of the user H is the first state to the second state. In two states, the variation amount AC2 of the other side s1 edge in the first direction d1 of the light emitting region LZ is smaller. As a result, the other side s1 edge in the first direction d1 of the light emitting region LZ located in the consciousness influence range XA in the first state is located outside the consciousness influence range XA in the first state.

  By the way, if the amount of light emitted from the lighting device 20 is large, even if the light emitting area LZ is set only within the unconscious influence range YA, the user H feels the color from the illumination light Ly, moves the face and line of sight, and emits light. The surface EP is also visually confirmed. Therefore, when the illuminance measurement is performed on the table T in the space S, the illuminance caused by the illumination light Ly from all the illumination devices 20 and 21 to 24 installed in the space S is the illumination from the base illumination device 13. It is preferably lower than the illuminance caused by the light Lx, preferably 30% or less of the illuminance caused by the illumination light Lx from the base illumination device 13, and further caused by the illumination light Lx from the base illumination device 13. More preferably, it is 15% or less of the illuminance. Similarly, when the illuminance measurement is performed at a position where the user H is scheduled to stay in the space S, the illumination light Ly is generated from all the lighting devices 20 and 21 to 24 installed in the space S. The illuminance is preferably lower than the illuminance caused by the illumination light Lx from the base illumination device 13, preferably 30% or less of the illuminance caused by the illumination light Lx from the base illumination device 13, and further the base illumination More preferably, it is 15% or less of the illuminance caused by the illumination light Lx from the device 13. The position where the user H is scheduled to stay in the space S is the face of the user H when the user H is seated on the first chair C1 or the second chair C2 in the illustrated example. Can be exemplified. Moreover, the illumination intensity resulting from the illumination light Ly from all the illuminating devices 20, 21-24 installed in the space S turns off the luminaires other than the illuminating devices 20, 21-24, and the illuminating devices 20, 21- This is the luminance measured with only 24 illuminated. Similarly, the illuminance caused by the illumination light Lx from the base illumination device 13 is the luminance measured in a state where the lighting fixtures other than the base illumination device 13 are turned off and only the base illumination device 13 is turned on.

  In addition, when the light emitting surface EP of the lighting device 20 is reflected on furniture or the like in the space S, the light emitting area LZ reflected by the user H is observed even if the light emitting area LZ is set only within the unconscious influence range YA. It is also possible to do. Therefore, the glossiness on the furniture arranged in the space S, typically the top surface of the table T, is preferably 0 or more and 70 or less, more preferably 0 or more and 30 or less. preferable. Here, the glossiness is a value measured using a gloss meter VG7000 manufactured by Nippon Denshoku Industries Co., Ltd. in accordance with JISZ8741. By setting the gloss level in this way, it is possible to prevent the user H from unintentionally being aware of the color of the light emitting region LZ.

  Here, FIG. 10 is a flowchart for explaining the operation of the illumination system 10 in the first example. With reference to FIG. 10, the operation example of the illumination system 10 is demonstrated.

  As described above, when the user H stays in the space S, the control device 15 first controls the base lighting device 13 to emit the illumination light Lx. Next, as shown in FIG. 10, in step S1, it is determined whether or not the user H is in the first state. Specifically, based on the detection result of the detection sensor 18, it is determined whether or not the user H is in the first state. This determination is performed by the calculation unit 15b of the control device 15 based on the detection result of the detection sensor 18 and the determination reference information stored in the storage unit 15a of the control device 15, for example.

  In the illustrated example, in the space S constituting the conference room, the user H normally sits on the first chair C1 or the second chair C2 and performs some work using the table T. . Therefore, it is possible to determine whether or not the user H is in the first state in which drowsiness has occurred by confirming the blink of the user H or the position of the eyelid sitting on the first chair C1 or the second chair C2. it can.

  Next, when it is determined in step S <b> 1 that the user H is in the first state, the injection control unit 15 c of the control device 15 supplies power to the light emitter 52 of the lighting device 20, and The illumination light Ly is emitted from the first light emitting area LZ1 in the light emitting area LZ. The illumination light Ly at this time is adjusted so as to have a color that causes a target psychological state. In the example shown in the figure, which aims to remove drowsiness, as an example, a mauve or iris color illumination light Ly is emitted from the light source 51.

  Then, it is judged whether user H is staying in space S as Step S3. Step S3 is executed after a lapse of a predetermined time after step S2. Specifically, it is determined whether or not the user H is staying in the space S based on the detection result of the detection sensor 18. This determination is performed by the calculation unit 15b of the control device 15 based on the detection result of the detection sensor 18 and the determination reference information stored in the storage unit 15a of the control device 15, for example. In the illustrated example, in the space S constituting the conference room, the user H normally sits on the first chair C1 or the second chair C2 and performs some work using the table T. Therefore, the presence or absence of the user H can be determined by detecting the presence or absence of the user H seated on the first chair C1 or the second chair C2.

  Next, when it is determined in step S3 that the user H is staying in the space S, the process proceeds to step S4. In step S4, it is determined again whether the user H is in the first state. If it is determined in step S4 that the user H is in the first state, for example, after a predetermined time has elapsed, step S3 is executed again, and the presence or absence of the user H is confirmed.

  On the other hand, when it is determined in step S1 and step S4 that the user H is not in the first state, the injection control unit 15c of the control device 15 adjusts the power supply to the light emitter 52 of the lighting device 20 as step S5. Then, the illumination light Ly is emitted from the second light emitting region LZ2 of the light emitting region LZ of the lighting device 20. The illumination light Ly at this time is adjusted to a color that causes a target psychological state. In the illustrated example that aims to remove drowsiness, as an example, in the same way as when the illumination light Ly is emitted from the first light emitting region LZ1, the magenta or iris colored illumination light Ly is emitted from the second light emitting region LZ2. To do.

  Then, it is judged whether user H is staying in space S as Step S6. Step S6 is executed after a predetermined time has elapsed after step S5 is completed. If it is determined in step S6 that the user H is staying in the space S, the process proceeds to step S7. In step S7, it is determined again whether the user H is in the first state. If it is determined in step S7 that the user H is not in the first state, for example, after a predetermined time has elapsed, step S6 is executed again, and the presence or absence of the user H is confirmed. If it is determined in step S7 that the user H is in the first state, step S2 is executed as in the case where it is determined in step S1 that the user H is in the first state. As a result, the light emitting region LZ on the light emitting surface EP is switched from the second light emitting region LZ2 to the first light emitting region LZ1.

  On the other hand, when it is determined in step S3 and step S6 that the user H is not in the space S, emission of the illumination light Ly from the light emitting surface EP of the illumination device 20 is stopped in step S8. Specifically, the injection control unit 15 c of the control device 15 stops the power supply to the light emitter 52 of the lighting device 20.

  According to the first example described above, the light emitting area LZ that emits light on the light emitting surface EP changes according to the state of the space user H. Depending on the size of the light emitting area LZ, how the space user H affects the psychological state changes. Therefore, an appropriate psychological action according to the state of the user H can be exerted on the space user H. Thereby, for example, the working efficiency of the user H in this space S can be improved.

  In the above description, the example in which the detection sensor 18 detects the first state of drowsiness is shown, but the present invention is not limited to this. The detection sensor 18 may be able to detect the second state without sleepiness instead of the first state with sleepiness or in addition to the first state with sleepiness.

  In the above description, the user H of the space S is an example of sitting alone on the first chair C1. And the light emission area | region LZ in the light emission surface EP of the 1st illuminating device 21 with which the consciousness influence range XA of the user H seated on the 1st chair C1 spreads was changed according to the said user H state. In this example, the light emitting area LZ on the light emitting surface EP of the second to fourth lighting devices 22 to 24 may be changed according to the state of the user H, or the state of the user H is changed. It may be constant without depending, or the second to fourth lighting devices 22 to 24 may be turned off. However, if at least a part of the light emitting surface EP of the second to fourth lighting devices 22 to 24 is located in the consciousness influence range XA, the second to fourth lighting is performed in the same manner as the first lighting device 21 described above. It is preferable to change the light emitting region LZ of the devices 22 to 24 with respect to the conscious influence range XA and the unconscious influence range YA. In addition, about the handling of the 2nd-4th illuminating devices 22-24, it can carry out similarly to a 1st example also in the other example mentioned later.

(Second example)
Next, a second example will be described with reference to FIGS. 11 and 12. The second example is mainly different from the first example in the state of the user H to be detected, the psychological state aimed at causing the user to occur, and the light emitting area LZ in each state. It can be the same as the first example. Hereinafter, differences from the first example will be mainly described.

  In the second example shown in FIGS. 11 and 12, the detection sensor 18 can detect a concentrated state as the first state. As an example, the detection sensor 18 can detect whether or not the user H is concentrated by observing the movement of a face such as a eyelid or the direction of the line of sight. The illumination device 20 emits illumination light Ly having a color that causes a target psychological state from the light emitting surface EP. In this example, the illuminating device 20 emits the flesh-colored illumination light Ly for the purpose of continuing the concentration when it is concentrated and for urging the concentration when it is not concentrated. Adjust the output of the body 52.

  Also in the second example, the control device 15 emits the illumination light Ly from the first light emitting region LZ1 when the user H is in the first state as shown in FIG. 11, and the user H as shown in FIG. , The illumination light Ly is emitted from the second light emitting region LZ2. As shown in FIGS. 11 and 12, the length of the first light emitting region LZ1 along the first direction d1 is longer than the length of the second light emitting region LZ2 along the first direction d1. That is, in the second example, the first light emitting region LZ1 is wider than the second light emitting region LZ2.

  As shown in FIGS. 11 and 12, the consciousness influence range XA of the user H in the concentrated first state is different from the consciousness influence range XA in the second state that is in the normal state or in the distracted state. Yes. The consciousness influence range XA in the first state, which is a concentrated state, is the range in which the inventors have conducted experiments and are expected to be at an elevation angle of 10 ° or less and a depression angle of 10 ° or less with respect to the horizontal direction from the position of the user's eyes. I was able to think that it was located inside. In addition, the consciousness influence range XA in the second state, which is a normal state or a distracted state, is considered to be located within a range expected from an eye angle of 30 ° or less and a depression angle of 30 ° or less with respect to the horizontal direction from the user's eye position. I was able to.

  As shown in FIG. 11, in the concentrated first state, the light emitting area LZ does not extend into the conscious influence range XA, but is located only within the unconscious influence range YA. That is, the user H who is in a concentrated state does not notice coloring due to the illumination light Ly in the light emitting surface EP. Therefore, the user H can effectively prevent distraction without putting the colored range on the light emitting surface EP into view.

  On the other hand, the user H is abruptly influenced by the color of the illumination light Ly that has reached the eye, and is led to a predetermined psychological state corresponding to the color of the illumination light Ly. In particular, since the light emitting area LZ on the light emitting surface EP is only within the unconscious influence range YA, it is extremely effective for continuously maintaining the psychological state after the target psychological state is obtained. That is, in the illustrated example, the concentrated user H can effectively maintain the concentrated state continuously.

  As shown in FIG. 12, in the normal state or the diffused second state, the light emitting region LZ extends to the consciousness influence range XA. At this time, the user H can notice coloring due to the illumination light Ly in the light emitting surface EP. Therefore, when the user H is in the second state, the user H receives a strong psychological effect due to the color of the illumination light Ly. That is, in the illustrated example, the user H is effectively guided to a concentrated state.

  In the second example shown in FIG. 11 and FIG. 12, as in the first example, the consciousness influence range XA is expanded from the first state to the second state of the user H, while the second state is changed from the first state. The light emitting region LZ is narrowed. However, unlike the first example, the amount of change in the light emitting region LZ is small in the second example. As shown in FIG. 12, the fluctuation amount AC1 of the one-side s1 edge in the first direction d1 of the consciousness influence range XA between the first state and the second state of the user H is changed from the first state to the second state. Further, the fluctuation amount AC2 of the other side s1 edge in the first direction d1 of the light emitting region LZ is larger. As a result, the other side s1 edge in the first direction d1 of the light emitting region LZ located outside the consciousness influence range XA in the first state is positioned within the consciousness influence range XA in the second state.

  According to the second example described above, the light emitting region LZ that emits light on the light emitting surface EP changes according to the state of the space user H. Depending on the size of the light emitting area LZ, how the space user H affects the psychological state changes. Therefore, an appropriate psychological action according to the user's state can be exerted on the space user. Thereby, for example, the working efficiency of the user H in this space S can be improved.

  In the above description, the example in which the detection sensor 18 detects the first state in the concentrated state is shown, but the present invention is not limited to this. The detection sensor 18 may be able to detect the second state in the normal state or the diffuse state in place of the first state in the concentrated state or in addition to the first state in the concentrated state.

  The detailed operation and lighting method of the lighting system 10 can be the same as the operation and method described in detail with reference to FIG. 10 in the first example.

(Third example)
Next, a third example will be described with reference to FIGS. 13 and 14. The third example is mainly different from the first example and the second example in the state of the user H to be detected, the psychological state to be generated by the user, and the light emitting area LZ in each state. In this case, it can be the same as the first example or the second example. In the following, differences from the first example and the second example will be mainly described.

  In the third example shown in FIG. 13 and FIG. 14, the detection sensor 18 can detect a state of alertness or tension as the second state. As an example, the detection sensor 18 can detect whether the user H is wary or nervous by observing the movement of the face, the direction of the line of sight, and the like. The illumination device 20 emits illumination light Ly having a color that causes a target psychological state from the light emitting surface EP. In this example, the lighting device 20 is intended to release from the alert or tension when it is alert or nervous, and to relax when it is not alert or nervous. The output of each light emitter 52 is adjusted so as to emit the amber illumination light Ly.

  Also in the third example, the control device 15 emits the illumination light Ly from the first light emitting region LZ1 when the user H is in the first state as shown in FIG. 13, and the user H as shown in FIG. , The illumination light Ly is emitted from the second light emitting region LZ2. As shown in FIGS. 13 and 14, the length of the first light emitting region LZ1 along the first direction d1 is shorter than the length of the second light emitting region LZ2 along the first direction d1. That is, in the third example, the first light emitting region LZ1 is narrower than the second light emitting region LZ2.

  As shown in FIG. 13 and FIG. 14, the consciousness influence range XA of the user H in the relaxed first state is different from the consciousness influence range XA in the second state in the alert or tense state. The consciousness influence range XA in the relaxed first state is the range in which the inventors have conducted an experiment, and are expected to be within 30 ° elevation angle and 30 ° depression angle with respect to the horizontal direction from the user's eye position. I was able to think it was located. In addition, the consciousness influence range XA in the second state of vigilance or tension can be considered to be located within a range that is expected from the position of the user's eyes at an elevation angle of 40 ° or less and a depression angle of 40 ° or less with reference to the horizontal direction. .

  As shown in FIG. 13, in the relaxed first state, the light emitting region LZ does not extend into the conscious influence range XA but is located only within the unconscious influence range YA. That is, the user H who is in a relaxed state does not notice the coloring due to the illumination light Ly in the light emitting surface EP. Therefore, the user H can effectively prevent distraction without putting the colored range on the light emitting surface EP into view.

  On the other hand, the user H is abruptly affected by the color of the illumination light Ly that has reached the eye, and the illumination light is led to a predetermined psychological state corresponding to the color. In particular, since the light emitting area LZ on the light emitting surface EP is only within the unconscious influence range YA, it is extremely effective for continuously maintaining the psychological state after the target psychological state is obtained. That is, in the illustrated example, the relaxed user H can effectively maintain the relaxed state continuously.

  As shown in FIG. 14, in the alert or tense second state, the light emitting area LZ extends to the consciousness influence range XA. At this time, the user H can notice the coloring of the light emitting surface EP due to the illumination light Ly in the light emitting surface EP. Therefore, when the user H is in the second state, the user H receives a strong psychological effect due to the color of the illumination light Ly. That is, in the illustrated example, the user H is effectively led to a relaxed state released from alertness and tension.

  In the third example shown in FIG. 13 and FIG. 14, unlike the first example and the second example, the consciousness influence range XA widens from the first state to the second state of the user H, while from the first state. The light emitting region LZ is not narrowed to the second state, but rather is widened. In the third example, the amount of change in the light emitting region LZ is very small. In the third example, the other side s1 edge in the first direction d1 of the light emitting region LZ located outside the consciousness influence range XA in the first state is located within the consciousness influence range XA in the second state.

  According to the third example described above, the light emitting region LZ that emits light on the light emitting surface EP changes according to the state of the space user H. Depending on the size of the light emitting area LZ, how the space user H affects the psychological state changes. Therefore, an appropriate psychological action according to the user's state can be exerted on the space user. Thereby, for example, the working efficiency of the user H in this space S can be improved.

  In the above description, the example in which the detection sensor 18 detects the alert or tense second state is shown, but the present invention is not limited to this. The detection sensor 18 may be able to detect the relaxed first state instead of or in addition to the alert or tensed second state.

  Moreover, about detailed operation | movement and the illumination method of the illumination system 10 in a 3rd example, step S1, step S4, and step S7 are changed into the step which judges whether the user H of the space S is a 2nd state. Thus, the operation and method described in detail with reference to FIG. 10 in the first example can be employed.

(4th example)
Next, a fourth example will be described with reference to FIGS. The fourth example is different from the first example in that the light emitting region LZ extends to the consciousness influence range XA in the second state in which drowsiness does not occur, and the first example in other points. Can be similar. Therefore, in the fourth example, in the first state in which drowsiness occurs, as shown in FIG. 8, the light emitting region LZ extends to the consciousness influence range XA.

  That is, in the fourth example, when the user H is in the first state, the control device 15 uses at least a part of the first light emitting region LZ1 that emits light in the light emitting surface EP in the first state. When the user H is in the consciousness influence range XA in which the person H can be aware of the color on the light emitting surface EP and the user H is in the second state, at least the second light emitting area LZ2 that emits light in the light emitting surface EP. The lighting device 20 is controlled so that a part thereof falls within the unconscious influence range YA in which the user H in the second state can be aware of the color on the light emitting surface EP. Therefore, when the user H is in the first state, at least a part of the light emitting area LZ of the light emitting surface EP is included in the consciousness influence range XA, so that the target psychological state according to the light emission color can be quickly obtained. It becomes possible to cause. Similarly, even when the user H is in the second state, at least a part of the light emitting area LZ of the light emitting surface EP is included in the consciousness influence range XA, so that the target psychological state corresponding to the light emission color can be obtained. It can be triggered quickly. According to this specific example, the light emitting region LZ can be appropriately changed according to the state of the user, and this can effectively affect the psychological state of the user H.

(Fifth example)
Next, a fifth example will be described with reference to FIGS. The fifth example is different from the first example in that the light emitting region LZ extends only within the unconscious influence range YA in the first state where drowsiness is occurring, as in the second state. It can be similar to the example. Therefore, in the fifth example, in the second state in which drowsiness does not occur, as shown in FIG. 16, the light emitting region LZ extends only within the unconscious influence range YA.

  That is, in the fourth example, when the user H is in the first state, the control device 15 causes the first light emitting area LZ1 that emits light in the light emitting surface EP to be emitted from the user H in the first state. When the user H is outside the consciousness influence range XA in which the color on the surface EP can be conscious and the user H is in the second state, the second light emitting area LZ2 that emits light in the light emitting surface EP is in the second state. The lighting device 20 is controlled so that a certain user H is outside the consciousness influence range XA in which the color on the light emitting surface EP can be recognized. Therefore, when the user H is in the first state, the light-emitting area LZ of the light-emitting surface EP is set within the unconscious influence range YA, so that the target psychological state corresponding to the light emission color is maintained for a long time. It becomes possible. Similarly, even when the user H is in the second state, by setting the light emitting area LZ of the light emitting surface EP within the unconscious influence range YA, the target psychological state corresponding to the light emission color can be maintained over a long period of time. Can be maintained. According to this specific example, the light emitting region LZ can be appropriately changed according to the state of the user H, and thereby the psychological state of the user H can be effectively influenced.

(Sixth example)
Next, a sixth example will be described. In the 1st-5th example mentioned above, the light emission area | region LZ showed the example adjusted based on the user's H psychological state. In the sixth example, the detection sensor 18 detects the working state of the user H, not the psychological state of the user H, and the control device 15 determines the size of the light emitting region LZ according to the working state of the user H. May be changed.

  As a specific example, the first state can be a state in which the user H is driving into a desk work such as a computer, and the second state can be a state in which the user H is in a meeting. It may be considered that the consciousness influence range XA of the user H who is driven into a desk work such as a computer is located within the range expected from the position of the eye of the user H at an elevation angle of 10 ° or less and a depression angle of 10 ° or less with respect to the horizontal direction. it can. Further, the consciousness influence range XA of the user H who is having a meeting can be considered to be located within a range that is expected from an eye position of the user H at an elevation angle of 30 ° or less and a depression angle of 30 ° or less with respect to the horizontal direction. .

  As an example, the first light emitting region LZ1 in the first state and the second light emitting region LZ2 in the second state can be set similarly to the fifth example. That is, the first light emitting area LZ1 is located only within the unconscious influence range YA of the user H in the first state, and the second light emitting area LZ2 is only within the unconscious influence range YA of the user H in the second state. You may make it locate in.

  In this specific example, the color of the illumination light Ly emitted from the first light emitting region LZ1 may be set to a skin color as in the second example, and the user H who performs desk work may be encouraged to concentrate. The color of the illumination light Ly emitted from the first light emitting area LZ1 may be a skin color as in the second example, and the user H who performs desk work may be encouraged to concentrate. Further, the color of the illumination light Ly emitted from the second light emitting region LZ2 may be light green or reddish purple so as to bring “liveliness” and “aggressiveness” to the user H during the meeting. That is, the light emitting region LZ is changed between the first state and the second state, and the color of the illumination light Ly is also changed so that the psychological state generated in the user H is different between the first state and the second state. ing. By changing the color of the illumination light Ly between the first state and the second state, an appropriate psychological state according to the user's work state can be caused.

  According to the sixth example described above, the light emitting region LZ that emits light on the light emitting surface EP changes according to the state of the space user H. Depending on the size of the light emitting area LZ, how the space user H affects the psychological state changes. Further, according to the sixth example, the color of the illumination light Ly emitted from the light emitting region LZ also changes according to the state of the space user H. Therefore, an appropriate psychological action according to the user's state can be exerted on the space user. Thereby, for example, the working efficiency of the user H in this space S can be improved.

  In the embodiment described above, the illumination system 10 includes the illumination device 20 that has the light emitting surface EP and emits light into the space S, and the control device 15 that controls the illumination device 20. When the user H of the space S is in the first state, the controller 15 emits the first light emitting area LZ1 that emits light in the light emitting surface EP, and the light emitting surface EP when the user H is in the second state. The lighting device 20 is controlled to be different from the second light emitting region LZ2 that emits light. According to the present embodiment as described above, the light emitting region LZ that emits light on the light emitting surface EP changes according to the psychological state and work state of the space user H. Depending on the size of the light emitting area LZ, how the space user H affects the psychological state changes. In other words, depending on whether the space user H is in the first state or the second state, it is possible to change how the influence on the psychological state is exerted. Therefore, an appropriate psychological action according to the state of the user can be exerted on the space user H. As described above, the psychological state of the space user H can be effectively affected, so that the work efficiency of the user H in the space S can be improved, for example.

  In the first to third examples of the above-described embodiment, the control device 15 includes the light emitting surface EP when the user H is in one of the first state and the second state. When the light emitting area LZ that emits light is outside the consciousness influence range XA of the user H in one state and the user H is in one of the first state and the second state, the light emitting surface The lighting device 20 is controlled so that at least a part of the light emitting region LZ in the EP is within the consciousness influence range XA of the user H in the other state. Therefore, when the user H is in one state, the target psychological state corresponding to the emission color is maintained for a long period of time by setting the light emitting area LZ of the light emitting surface EP within the unconscious influence range YA. It becomes possible. On the other hand, when the user H is in the other state, at least a part of the light emitting area LZ of the light emitting surface EP is included in the consciousness influence range XA, so that the target psychological state corresponding to the light emission color can be quickly obtained. It becomes possible to cause. According to this specific example, the light emitting region LZ can be appropriately changed according to the state of the user H, and thereby the psychological state of the user H can be effectively influenced.

  In the first to sixth examples of the embodiment described above, the consciousness influence range XA of the user H in the first state is different from the consciousness influence range XA of the user H in the second state. As described above, the size of the consciousness influence range XA in which the space user H can recognize the color on the light emitting surface EP is likely to change according to the state of the user H. In the specific example described above, the size of the light emitting region LZ can be adjusted in accordance with the change in the size of the consciousness influence range XA. Thereby, regardless of the state change of the space user H, the psychological state of the user H can be effectively influenced.

  In the first example and the second example of the embodiment described above, the consciousness influence range XA of the user H in the first state is narrower than the consciousness influence range XA of the user H in the second state. 15 indicates that the first light emitting area LZ1 emitting light in the light emitting surface EP when the user H is in the first state emits light in the light emitting surface EP when the user H is in the second state. The lighting device 20 is controlled so as to be wider than the second light emitting region LZ2. According to this specific example, the size of the light emitting region LZ can be appropriately adjusted with the change in the size of the consciousness influence range XA. For example, the second light emitting region LZ2 in the second state can be set only in the unconscious influence range YA, and at least a part of the first light emitting region LZ1 in the first state can be located in the conscious influence range XA. Further, the first light emitting area LZ1 in the first state can be set only in the unconscious influence range YA, and at least a part of the second light emitting area LZ2 in the second state can be located in the conscious influence range XA. Thereby, regardless of the state change of the space user H, the psychological state of the user H can be effectively influenced.

  In the first example of the embodiment described above, the control device 15 has the second light emitting region LZ2 emitting light in the light emitting surface EP in the second state when the user H is in the second state. When the user H is outside the consciousness influence range XA in which the user H can be aware of the color on the light emitting surface EP and the user H is in the first state, the light emitting surface EP emits the first light emitting area LZ1. The lighting device 20 is controlled so that at least a part thereof is within a range in which the user H in the first state can be aware of the color on the light emitting surface EP. As an example, in the first state in which drowsiness occurs, it is possible to quickly remove drowsiness by making the user aware of the mauve color or the iris color of the first light emitting region LZ1. Further, in the second state, which is the normal state from which drowsiness has been removed, the user is unconsciously aware of the drowsiness from the light of mauve or iris color emitted from the second light emitting area LZ2 within the unconscious influence range YA. The effect that does not occur is continuously exerted and drowsiness is removed. According to this example, the user H can act with high productivity in the space S. It should be noted that the consciousness influence range XA in the first state in which sleepiness has occurred can be considered to be located within the range expected from the eye position of the user H at an elevation angle of 10 ° or less and a depression angle of 10 ° or less. Similarly, the consciousness influence range XA in the second state, which is the normal state from which sleepiness has been removed, may be considered to be located within the range that is expected from the eye position of the user H at an elevation angle of 30 ° or less and a depression angle of 30 ° or less. it can. When intensive experiments were repeated, it was confirmed that the effect of improving the productivity in the space S can be effectively obtained by setting the consciousness influence range XA in this way.

  In the second example of the embodiment described above, when the user H is in the first state, the control device 15 causes the first light emitting area LZ1 that emits light on the light emitting surface EP to be in the first psychological state. When a user H is outside the consciousness influence range XA in which the color on the light emitting surface EP can be recognized, and the user H is in the second state, at least a part of the light emitting area of the light emitting surface EP is emitted. However, the lighting device 20 is controlled so as to be within the consciousness influence range XA in which the user H in the second state can be aware of the color on the light emitting surface EP. As an example, in the first state in which the user H is concentrated, light such as skin color that promotes continuation of concentration from the light emitting area LZ within the unconscious influence range YA so as not to distract the user H Inject. As a result, the user H is continually prompted to concentrate unconsciously and is maintained in a concentrated state. Also, in the second state, which is in a distracted state or a normal state, where the concentration is cut off, the user is quickly guided to the concentrated state by making the user aware of the skin color of the light emitting area LZ located within the conscious influence range XA. It becomes possible to do. According to this example, the user H can act with high productivity in the space S. Note that the consciousness influence range XA in the first state in a concentrated state can be considered to be located within a range expected from an eye angle of the user H at an elevation angle of 10 ° or less and a depression angle of 10 ° or less. Similarly, the consciousness influence range XA in the second state, which is a state in which the concentration is cut off and diffused or in the normal state, is located within a range expected from the position of the eye of the user H at an elevation angle of 30 ° or less and a depression angle of 30 ° or less. Can think. When intensive experiments were repeated, it was confirmed that the effect of improving productivity in the space S can be effectively obtained by setting the consciousness influence range XA in this way.

In the third example of the embodiment described above, the consciousness influence range XA of the user H in the first state is narrower than the consciousness influence range XA of the user H in the second state. When the user H is in the second state, the second light emitting area LZ2 that emits light in the light emitting surface EP emits light in the first light emitting surface EP when the user H is in the first state. The lighting device 20 is controlled so as to be wider than the light emitting region LZ1. According to this specific example, the size of the light emitting region LZ can be appropriately adjusted with the change in the size of the consciousness influence range XA.
For example, the first light emitting region LZ1 in the first state can be set only in the unconscious influence range YA, and at least a part of the second light emitting region LZ2 in the second state can be located in the conscious influence range XA. Thereby, regardless of the state change of the space user H, the psychological state of the user H can be effectively influenced.

  In the third example of the embodiment described above, the control device 15 is configured such that when the user H is in the first state, the light emitting area LZ of the light emitting surface EP is in the first state. When the user H is outside the consciousness influence range XA of the H and the user H is in the second state, at least a part of the light emitting area of the light emitting surface EP is the consciousness influence range XA of the user H in the second state. The lighting device 20 is controlled to be inside. As an example, in the first state where the user H is in a relaxed state, the discoloration that promotes the continuation of relaxation from the light emitting area LZ that is within the unconscious influence range YA so that the user H is not warned or nervous. The light is emitted. Thereby, the user H is maintained in the relaxed state by being continuously acted unconsciously. Further, in the second state where the person cannot be relaxed and is in a state of vigilance or tension, the user can be conscious of the discoloration of the light emitting region LZ located in the consciousness influence range XA, thereby quickly entering the relaxed state. It becomes possible to guide to. According to this example, the user H can spend comfortably in the space S. In addition, it can be considered that the consciousness influence range XA in the first state in the relaxed state is located within the range expected from the eye position of the user H at an elevation angle of 30 ° or less and a depression angle of 30 ° or less. Similarly, the consciousness influence range XA in the second state, which is a state of alertness or tension that cannot be relaxed, is located within a range that is expected from the eye position of the user H at an elevation angle of 40 ° or less and a depression angle of 40 ° or less. Then you can think. When intensive experiments were repeated, it was confirmed that the effect of improving comfort in the space S can be effectively obtained by setting the consciousness influence range XA in this way.

  In one specific example of the above-described embodiment, the illumination system 10 further includes a detection sensor 18 that detects the state of the user H, and the control device 15 is based on the detection result of the detection sensor 18. 20 is controlled. By using the detection sensor 18 that detects the state of the user H, the light emitting area LZ can be adjusted in response to the state change of the user H quickly.

  In one specific example of the embodiment described above, the detection sensor 18 detects at least one of the blinking operation of the user H, the number of blinks, the state of the pupil, the direction of the line of sight, and the operation of the face. By using the detection result of such a detection sensor 18, the state of the user H can be detected appropriately.

  In one specific example of the embodiment described above, the detection sensor 18 includes an imaging device that images the user H. Such a detection sensor 18 is simple and inexpensive. Moreover, the application to the existing illuminating device 20 is also possible.

  In the sixth example of the embodiment described above, the control device 15 causes the emission color of the light emitting surface EP when the user H of the space S is in the first state, and when the user H is in the second state. The illumination device 20 is controlled to be different from the emission color of the light emitting surface EP. By controlling the emission color, the psychological state that is the guidance target of the space user H can be appropriately changed. Therefore, it is possible to make the lighting more appropriate according to the state of the user H, thereby effectively affecting the psychological state of the user H.

  In one specific example of the embodiment described above, the light emitting surface EP is provided on the wall W that partitions the space S. In many cases, the consciousness influence range XA of the user H in the space S extends on the wall W. Therefore, by changing the light emitting region LZ of the light emitting surface EP provided on the wall W, the illumination can be made more appropriate according to the state of the user H. Accordingly, it is possible to effectively influence the psychological state of the user H.

  In one specific example of the above-described embodiment, the amount of light emitted from a certain area of the light emitting surface EP is different from that of the light emitting surface EP that is closer to the ceiling CE that defines the space S than the region. The amount of light emitted from the area of a certain area is smaller. Furthermore, the amount of light emitted from a region having a certain area that is arbitrarily selected on the light emitting surface EP is the amount of light emitted from another region having a certain area near the ceiling CE that divides the space S. You may make it become the following. According to these specific examples, in addition to the size of the light emitting region LZ of the illumination device 20 being adjustable, the amount of emitted light in the light emitting region LZ can be adjusted. Accordingly, it is possible to effectively influence the psychological state of the user. Further, from the viewpoint of effective use of illumination light, the light emitting surface EP of the illumination device 20 is preferably close to the ceiling CE of the wall W. In this case, a region of the light emitting surface EP that is separated from the ceiling CE is within the conscious influence range XA, and a region of the light emitting surface EP that is close to the ceiling CE is likely to be within the unconscious influence range YA. According to the distribution of the emitted light amount in the specific example described above, the emitted light amount from the conscious influence range XA can be made smaller than the emitted light amount from the unconscious influence range YA. Thereby, it is possible to effectively prevent the space user H from being excessively acted on by the light from the consciousness influence range XA. In addition, the light from the unconscious influence range YA can effectively work on the psychological state of the space user H.

  In one specific example of the above-described embodiment, the amount of light emitted from a region of a certain area located within the consciousness influence range XA in which the user H can be aware of the color on the light emitting surface EP is determined by the user H. It is preferable that the amount of light emitted from a region of a certain area located outside the consciousness influence range XA where the color on the light emitting surface EP can be conscious is smaller. That is, the amount of light emitted from the conscious influence range XA can be made smaller than the amount of light emitted from the unconscious influence range YA. Thereby, it is possible to effectively prevent the space user H from being excessively acted on by the light from the consciousness influence range XA. Further, the light from the unconscious influence range YA can effectively work on the psychological state of the space S user.

  In one specific example of the above-described embodiment, the illumination system 10 further includes the base illumination device 13 provided on the ceiling CE that partitions the space S. Since the base illumination device 13 is separately provided, the position and size of the light emitting surface EP of the illumination device 20 can be appropriately set in consideration of the influence on the psychological state of the space user H. Accordingly, it is possible to effectively influence the psychological state of the user H.

  In the embodiment described above, the illumination method for illuminating the space S using the illumination device 20 having the light emitting surface EP causes the light emitting surface EP to emit light when the user H of the space S is in the first state. And a step of illuminating the light emitting surface EP when the user H of the space S is in the second state. The light emitting area LZ1 that emits light in the light emitting surface EP when the user H is in the first state, and the second light emitting that emits light in the light emitting surface EP when the user H is in the second state. This is different from the region LZ2. According to the present embodiment as described above, the light emitting region LZ that emits light on the light emitting surface EP changes according to the psychological state and operation state of the space user H. Depending on the size of the light emitting area LZ, how the space user H affects the psychological state changes. Therefore, depending on whether the space user H is in the first state or the second state, it is possible to change the way the influence is exerted on the psychological state. That is, an appropriate psychological action according to the state of the user H can be exerted on the space user. As described above, the psychological state of the space user H can be effectively affected, so that the work efficiency of the user H in the space S can be improved, for example.

  In the above-described embodiment, the illumination system 10 includes the illumination device 20 that has the light emitting surface EP and emits light to the space S, and the control device 15 that controls the illumination device 20. When the user H is in one of the first state and the second state, the control device 15 uses the light emitting area LZ that emits light on the light emitting surface EP in the one state. When the user H is outside the consciousness influence range XA and the user H is in one of the first state and the second state, at least a part of the light emitting area LZ that emits light in the light emitting surface EP is The lighting device 20 is controlled so as to be within the consciousness influence range XA of the user H in the other state. According to the present embodiment as described above, when the user H is in one state, by setting the light emitting area LZ of the light emitting surface EP within the unconscious influence range YA, the target psychology according to the light emission color. The state can be maintained over a long period of time. On the other hand, when the user H is in the other state, at least a part of the light emitting area LZ of the light emitting surface EP is included in the consciousness influence range XA, so that the target psychological state corresponding to the light emission color can be quickly obtained. It becomes possible to cause. Therefore, the light emitting area can be appropriately changed according to the state of the user H, and this can effectively affect the psychological state of the user H. In such a lighting device 20, the light emitting region LZ may be the same without changing between the first state and the second state.

  Although one embodiment has been described with a plurality of specific examples, these specific examples are not intended to limit the one embodiment. The embodiment described above can be implemented in various other specific examples, and various omissions, replacements, and changes can be made without departing from the scope of the invention.

  Hereinafter, an example of modification will be described with reference to the drawings. In the following description and the drawings used in the following description, for parts that can be configured in the same manner as the specific examples described above, the same reference numerals as those used for the corresponding parts in the specific examples described above are used, and overlapping descriptions are given. Is omitted.

  In the specific example of the above-described embodiment, the example in which the lighting method by the lighting device 20 is changed according to whether the user H is in the first state or the second state has been described, but is limited to this example. Absent. For example, the lighting method by the lighting device 20 may be changed according to which of the three or more states the user H is in.

  Further, in the specific example of the above-described embodiment, the example in which the illumination device 20 includes the edge light type surface light source device 50 has been described. For example, a direct type surface light source device 50 may be incorporated in the lighting device 20. The surface light source device 50 illustrated in FIG. 17 includes a light diffusion sheet 56, a reflection sheet 57, and an optical sheet 58 as the optical member 55. The optical sheet 58 is disposed between the light diffusion sheet 56 and the reflection sheet 57. The light source 51 is disposed between the reflection sheet 57 and the optical sheet 58. The light source 51 includes a plurality of light emitters 52 arranged in both the first direction d1 and the second direction d2. As an example, the optical sheet 58 has a function of adjusting the illuminance distribution caused by the arrangement of the plurality of light emitters 52, for example, a function of making it uniform. In the example shown in FIG. 17, the optical sheet 58 is configured by a prism sheet having a prism protruding toward the light diffusion sheet 56. In the surface light source device 50 of FIG. 17, the light diffusion sheet 56 forms a light emission surface 50a, and emits planar light that illuminates the first region Z1 of the decorative sheet 40 that forms the light emitting surface EP. can do. In the example shown in FIG. 17, by adjusting the output of each light emitter 52, the position and size of the light emitting region LZ in the light emitting surface EP of the illumination device 20 that overlaps the light emitting surface 50a can be adjusted. it can. Further, by adjusting the output of each light emitter 52, it is possible to control the emitted light amount distribution from a region having a constant area in the light emitting region LZ. Further, when the light source 51 includes light emitters 52 in different wavelength ranges, the color of the illumination light Ly emitted from the light emission region LZ can be controlled by adjusting the output of each light emitter 52.

  Further, as the surface light source device 50, a light emitting sheet such as an EL (Electro Luminescence) sheet, a planar light emitter, and a sheet light source can be used.

  Furthermore, as another example of the illumination device, as illustrated in FIG. 18, the illumination device 20 may include a decorative sheet 40 and a light source 51 that emits light onto the decorative sheet 40. In the example shown in FIG. 18, the decorative sheet 40 is provided on the wall body WB. The light source 51 is disposed in a recess formed in the ceiling CE. The illumination light Ly can be supplied to the space S by reflection on the decorative sheet 40. That is, in the example shown in FIG. 18, the light emitting surface EP is a region that can be irradiated with light from the light source 51 on the surface of the decorative sheet 40. In the example shown in FIG. 18, by adjusting the light distribution characteristics of the light emitted from the light source 51, more specifically, the luminous intensity angle distribution, the position and size of the light emitting region LZ, It is possible to adjust the distribution of the quantity of light emitted from a region having a constant area. The light source 51 is preferably capable of emitting light in different wavelength regions so that the color of the illumination light Ly can be switched.

  As another modification, the decorative sheet 40 may be arranged to face two or more surfaces of the surface light source device 50 as shown in FIG. In the example shown in FIG. 19, the surface light source device 50 includes a pair of main surfaces 50b and a side surface 50c located between the pair of main surfaces 50b. One main surface 50b includes a light exit surface 50a. In the illustrated example, the decorative sheet 40 faces one main surface 50b including the light emitting surface 50a and a side surface 50c adjacent to the main surface 50b. More precisely, the decorative sheet 40 shown in FIG. 19 covers one main surface 50b including the light emitting surface 50a and four side surfaces 50c adjacent to the main surface 50b. In the example shown in FIG. 19, the lighting device 20 including the decorative sheet 40 and the surface light source device 50 is handled as one member, for example, as a light-emitting panel material, and is attached to the wall body WB as a structure. A panel material 70 including the board 30 and a decorative sheet 40 that covers one main surface and side surfaces of the board 30 is attached to the wall body WB as a structure together with the lighting device 20. The lighting device 20 shown in FIG. 19 can be installed in regions of various sizes and shapes by combining with the panel material 70 whose shape and size are adjusted.

  20 shows an exploded perspective view of the lighting device 20 of FIG. In the example shown in FIG. 20, the lighting device 20 has a flattened rectangular parallelepiped shape. The lighting device 20 includes a region 40a corresponding to one main surface 50b of the surface light source device 50 and four regions 40b corresponding to the four side surfaces 50c of the surface light source device 50, respectively. A portion of the region 40a of the decorative sheet 40 that faces the light emitting surface 50a forms a first region Z1 that becomes the light emitting surface EP, and the light emitting surface 50a of the region 40a of the decorative sheet 40 is formed. The portion that does not face the region and the region 40b of the decorative sheet 40 form a second region Z2.

  The surface light source device 50 includes a reflection sheet 57, a light guide plate 60, an adjustment sheet 59, and a light diffusion sheet 56. A light emitter 52 is provided facing the light guide plate 60 from the first side s1 in the first direction d1. The adjustment sheet 59 includes a transparent base material 59a having visible light permeability and a light absorbing portion 59b provided on the base material 59a. The light absorption unit 59b includes, for example, a pigment having visible light absorption, and has a visible light absorption function. As an example, the light absorbing portion 59b includes carbon black or titanium black.

  The adjustment sheet 59 is a layer for reducing the amount of light emitted from the decorative sheet 40 at a position close to the second region Z2 located on the second side s2 in the first direction d1. And the light absorptivity in each area | region of the adjustment sheet 59 is not uniform, but changes. For example, the light absorbing ability of a certain region of the adjustment sheet 59 is adjusted so that the adjustment sheet 59 in another certain region located closer to the light emitter 52 is located closer to the first side s1 in the first direction d1 than the region. By making it stronger than the light absorption ability, it is possible to reduce the amount of light emitted from the region located on the second side s2 in the first direction d1 and close to the second region Z2. Furthermore, the light absorption capability of the adjustment sheet 59 in the arbitrarily selected region is set to be greater than or equal to the light absorption capability of the adjustment sheet 59 in other regions located on the first side s1 in the first direction d1 than the region. Thus, the amount of emitted light can be reduced as it approaches the second region Z2 located on the second side s2 in the first direction d1. The visible light absorption ability can be adjusted by the pigment content density, the arrangement density of the light absorbing portions 59b, the thickness of the light absorbing portions 59b, and the like. This adjustment sheet 59 can also be applied to other examples of the surface light source device 50 described above.

  As a modification example related to FIGS. 19 and 20, the illumination device 20 in the modification example shown in FIGS. 21 and 22 supports the surface light source device 50 in addition to the decorative sheet 40 and the surface light source device 50. A frame 34 is provided. The support frame 34 reinforces the surface light source device 50 and facilitates the installation of the surface light source device 50 outside the wall W or the like. The decorative sheet 40 may be directly joined to the surface light source device 50 or may be joined to the support frame 34 so as to face the surface light source device 50. In the example shown in FIG. 21, the decorative sheet 40 faces a region that is not covered by the support frame 34 of the surface light source device 50 in the first region Z1 in which the light emitting surface EP is formed. Further, the decorative sheet 40 faces the support frame 34 that covers the surface light source device 50 in the second region Z2. In the example shown in FIG. 22, the second region Z <b> 2 of the decorative sheet 40 extends to a region facing the side surface of the surface light source device 50 via the support frame 34. Furthermore, in the example shown in FIGS. 21 and 22, the illumination device 20 includes a support plate 35 supported by the support frame 34 together with the surface light source device 50. The support plate 35 is a member for imparting rigidity to the lighting device 20, and may be a metal plate material such as aluminum. The support plate 35 is applicable not only to the example shown in FIGS. 21 and 22 but also to other examples, but can be omitted from the examples of FIGS. 21 and 22.

  Furthermore, as another modification, the lighting device 20 described above can be used alone without being combined with the base lighting device 13. Also in this example, the illuminating device 20 can produce the atmosphere of the space S, and may be further provided with a function of illuminating the space S.

  Furthermore, although the illuminating device 20 described above has been described as constituting the wall W as the building material panel BP, the lighting device 20 is not limited thereto, and may constitute the ceiling CE or configure the floor F. You may make it do.

  The lighting device 20 including the decorative sheet 40 and the surface light source device 50 may be handled as an assembly kit. That is, a combination of at least a part of the optical member 55 of the surface light source device 50 and the decorative sheet 40 may be distributed or sold as an assembly kit and installed in a building or a moving body. In this example, the decorative sheet 40 and the surface light source device 50 constituting the assembly kit may be sequentially installed in a building or a moving body to produce a structure, or first, the decorative sheet constituting the assembly kit. The lighting device 20 and the building material panel BP may be assembled using the 40 or the surface light source device 50, and then the assembled lighting device 20 and the building material panel BP may be installed in a building or a moving body to produce a structure. .

  In addition, although the some modification with respect to embodiment mentioned above was demonstrated above, naturally, it is also possible to apply combining several modifications suitably.

S space H user EP light emitting surface LZ light emitting area LZ1 first light emitting area LZ2 second light emitting area XA conscious influence range XB unconscious influence range 10 illumination system 13 base illumination device 15 control device 18 detection sensor 20 illumination device 21 first illumination device 22 second illumination device 23 third illumination device 24 fourth illumination device 40 decorative sheet 50 surface light source device 51 light source 52 light emitter 55 optical member

Claims (16)

An illumination device having a light emitting surface and emitting light to the space;
When the user of the space is in the first state, the light emitting area of the light emitting surface is out of the light emitting surface when the user is in the second state different from the first state. A lighting system comprising: a control device that controls the lighting device so as to be different from a region that emits light. The controller is
When the user is in one of the first state and the second state, the light emitting area of the light emitting surface is in the one state. Beyond the range where you can be aware of the color on the surface,
When the user is in one of the first state and the second state, at least a part of the light emitting area of the light emitting surface is in the other state. So that the person can be aware of the color on the light emitting surface,
The lighting system according to claim 1, wherein the lighting system is controlled. The controller is
When the user is in the first state, the light emitting area of the light emitting surface is outside the range where the user in the first state can be aware of the color on the light emitting surface. ,
When the user is in the second state, the light emitting area of the light emitting surface is out of a range where the user in the second state can be aware of the color on the light emitting surface. So that
The lighting system according to claim 1, wherein the lighting device is controlled. The controller is
When the user is in the first state, at least a part of the light emitting area of the light emitting surface is conscious of the color on the light emitting surface by the user in the first state. Within the range of
When the user is in the second state, at least a part of the light emitting area of the light emitting surface is conscious of the color on the light emitting surface by the user in the second state. To be within the possible range,
The lighting system according to claim 1, wherein the lighting system is controlled. The range in which the user in the first state can be aware of the color on the light emitting surface is greater than the range in which the user in the second state can be aware of the color on the light emitting surface. Narrow,
The controller is
When the user is in the first state, the light emitting area of the light emitting surface is larger than the light emitting area of the light emitting surface when the user is in the second state. To be wide,
The illumination system according to any one of claims 1 to 4, which controls the illumination device. The range in which the user in the first state can be aware of the color on the light emitting surface is greater than the range in which the user in the second state can be aware of the color on the light emitting surface. Narrow,
The controller is
When the user is in the second state, the light emitting area of the light emitting surface is wider than the light emitting area of the light emitting surface when the user is in the first state. So that
The illumination system according to any one of claims 1 to 4, which controls the illumination device. A detection sensor for detecting the state of the user;
The lighting system according to claim 1, wherein the control device controls the lighting device based on a detection result of the detection sensor.   The illumination system according to claim 7, wherein the detection sensor detects at least one of a blink operation, a blink count, a pupil state, a line-of-sight direction, and a face operation of the user. The controller is
The emission color of the light emitting surface when the user of the space is in the first state is different from the emission color of the light emitting surface when the user is in the second state,
The lighting system according to claim 1, wherein the lighting device is controlled.   The illumination system according to any one of claims 1 to 9, wherein the light emitting surface is provided on a wall that partitions the space.   The amount of light emitted from a certain area of the light emitting surface is less than the amount of light emitted from another certain area of the light emitting surface adjacent to the ceiling that defines the space. Item 11. The lighting system according to Item 10.   The amount of light emitted from a certain area located within a range where the user can be aware of the color on the light emitting surface is outside the range where the user can be aware of the color on the light emitting surface. The illumination system according to any one of claims 1 to 11, wherein the amount of light emitted is smaller than the amount of light emitted from a region having a certain area.   The lighting system according to any one of claims 1 to 12, further comprising a base lighting device provided on a ceiling that partitions the space. A method of illuminating a space using a lighting device having a light emitting surface,
Detecting whether the user of the space is in a first state or a second state different from the first state;
And illuminating the light emitting surface based on the detection result in the detection step,
An area of the light emitting surface that emits light when the user is in the first state, and an area of the light emitting surface that emits light when the user is in the second state; Different lighting methods. An illumination device having a light emitting surface and emitting light to the space;
A control device for controlling the lighting device,
The controller is
When the user of the space is in one of the first state and the second state different from the first state, the light emitting area of the light emitting surface is in the one state. The user is outside the range where the user can be aware of the color on the light emitting surface,
When the user is in one of the first state and the second state, at least a part of the light emitting area of the light emitting surface is in the other state. So that the person can be aware of the color on the light emitting surface,
An illumination system for controlling the illumination device. A method of illuminating a space using a lighting device having a light emitting surface,
Detecting whether the user of the space is in a first state or a second state different from the first state;
And illuminating the light emitting surface based on the detection result in the detection step,
When the user is in one of the first state and the second state different from the first state, the light emitting area of the light emitting surface is in the one state. Outside the range where the user can be aware of the color on the light emitting surface,
When the user is in the other state of the first state and the second state, at least a part of the light emitting area of the light emitting surface is used in the other state. A lighting method in which a person can be aware of the color on the light emitting surface.