JP6635166B2 - Space production system and space production method - Google Patents

Description

  The present disclosure relates to a space presentation system and a space presentation method.

  2. Description of the Related Art Conventionally, a technology for producing a space by emitting light to the space has been proposed. For example, in Patent Literature 1, light from a light source that is concealed and cannot be directly viewed is reflected by a reflection panel or a ceiling using an indirect lighting device installed on a wall called a peripheral unit. By indirectly injecting into the space, the space is created so that the height of the ceiling and the width of the walls are emphasized.

  In the technology disclosed in Patent Document 1, in order to create a desired indoor space, the amount of light emitted from the housing of the indirect lighting device to the outside is reduced by sliding the front cover of the housing containing the light source. I am adjusting.

JP 2011-210594 A

  However, with the technology disclosed in Patent Document 1, although the amount of light emitted from the indirect lighting device can be adjusted, the adjustment is monotonous regardless of the position on the wall surface where the indirect lighting device is installed. It is. For this reason, conventionally, it has not been possible to sufficiently produce and enhance the atmosphere of the space.

  The present disclosure has been made in view of the above points, and has as its object to provide a space effect system and a space effect method capable of effectively effecting the atmosphere of a space.

The space effect system according to the present disclosure
A first light emitting unit that is provided at a first position and emits first light into a space;
A second light emitting unit that is provided at a second position different from the first position and that emits second light to the space,
The first and second light emitting units are configured to perform at least one of brightness and color of the first and second lights in an order according to a positional relationship between the first position and the second position. To change.

In the space effect system according to the present disclosure,
The first position is a position that is easier to enter the field of view of a user of the space than the second position,
The first light emitting unit changes at least one of the brightness and the color of the first light after the second light emitting unit changes at least one of the brightness and the color of the second light. It may be changed.

In the space effect system according to the present disclosure,
The space is located in a room,
The distance from the entrance to the room to the first position is longer than the distance from the entrance to the second position,
The first light emitting unit is a first light emitting device having a first light emitting surface,
The second light emitting unit is a second light emitting device having a second light emitting surface,
The first light emitting device changes at least one of brightness and color of the first light after the second light emitting device changes at least one of brightness and color of the second light. You may.

In the space effect system according to the present disclosure,
The first light emitting device may increase the brightness of the first light after the second light emitting device increases the brightness of the second light.

In the space effect system according to the present disclosure,
The first light emitting device may darken the color of the first light after the second light emitting device darkens the color of the second light.

In the space effect system according to the present disclosure,
The first light-emitting device changes at least one of brightness and color of the first light emitted from a first light-emitting region of the first light-emitting surface, the distance from the entrance being short. Later, at least one of the brightness and the color of the first light emitted from the second light-emitting region of the first light-emitting surface that is longer from the entrance may be changed.

In the space effect system according to the present disclosure,
The second light-emitting device changes at least one of brightness and color of the second light emitted from a third light-emitting region of the second light-emitting surface, the distance from the entrance being short. Later, at least one of the brightness and the color of the second light emitted from the fourth light-emitting area of the second light-emitting surface that is longer from the entrance may be changed.

In the space effect system according to the present disclosure,
The first light-emitting device changes at least one of brightness and color of the first light gradually or stepwise from one end of the first light-emitting surface on the entrance side to a side opposite to the entrance. May be.

In the space effect system according to the present disclosure,
The second light emitting device changes at least one of brightness and color of the second light gradually or stepwise from one end of the second light emitting surface on the entrance side to the opposite side to the entrance. May be.

In the space effect system according to the present disclosure,
The first and second light emitting devices may be provided on different walls of the room.

In the space effect system according to the present disclosure,
The first and second light emitting devices may be provided at different positions on the same wall of the room.

In the space effect system according to the present disclosure,
The first and second light emitting units may further change at least one of brightness and color of the first and second lights according to a use state of the space.

In the space effect system according to the present disclosure,
Further comprising a base illumination for illuminating the space,
The first and second light emitting units match the colors of the first and second lights with the color of the irradiation light of the base illumination at the start of using the space, and after starting using the space, The colors of the first and second lights may be changed from the color of the irradiation light of the base illumination.

In the space effect system according to the present disclosure,
The first and second light emitting units may make the brightness of the first and second lights darker than the brightness of the irradiation light of the base illumination.

In the space effect system according to the present disclosure,
The base illumination changes the brightness and the color of the irradiation light in accordance with at least one of the brightness and the color of the first and second lights emitted from the first and second light emission units. At least one may be changed.

In the space effect system according to the present disclosure,
A light-emitting device that has a light-emitting surface and emits light from the light-emitting surface to a space located in a room; After changing at least one of the brightness and the color of the light emitted from the region, at least the brightness and the color of the light emitted from the second light-emitting region having a longer distance from the entrance of the light-emitting surface. One may be changed.

In the space effect system according to the present disclosure,
The space is located on a desk surrounded by the first partition member on the front side and the second and third partition members on the side surface,
The first position is on the first partition member,
The second position is on the second and third partition members;
The first light emitting unit may change at least one of the brightness and the color of the first light after the second light emitting unit changes at least one of the brightness and the color of the second light. Good.

In the space effect system according to the present disclosure,
The space is a space adjacent to at least one of the first surface and the second surface of the eyeglass lens, and the first position is on a first frame portion adjacent to one end of the eyeglass frame in the height direction of the lens. Exists in
The second position is present on a second frame portion adjacent to one end of the frame in the width direction of the lens,
The first light emitting unit may change at least one of the brightness and the color of the first light after the second light emitting unit changes at least one of the brightness and the color of the second light. Good.

The space production method according to the present disclosure
A first light emitting unit that is provided at a first position and emits first light to a space; and a second light emitting unit that is provided at a second position different from the first position and emits second light to the space. The second light emitting unit changes at least one of the brightness and the color of the first and second lights according to an order according to a positional relationship between the first position and the second position.

In the space effect system according to the present disclosure,
The first light emitting unit is a first light emitting area of the light emitting surface in a light emitting device having a light emitting surface,
The second light emitting section may be a second light emitting area arranged at a different position on the light emitting surface from the first light emitting area.

In the space effect system according to the present disclosure,
The light emitting device may be provided on a ceiling of the room.

In the space effect system according to the present disclosure,
The light emitting device may be provided on a partition wall that partitions the space from another space.

  According to the present disclosure, an atmosphere of a space can be effectively produced.

FIG. 1 is a perspective view showing the space effect system according to the present embodiment. FIG. 2 is a plan view showing the space effect system according to the present embodiment. FIG. 3 is a cross-sectional view illustrating an example of the surface light source device included in the space effect system according to the present embodiment. FIG. 4 is an enlarged sectional view showing an example of the surface light source device included in the space effect system according to the present embodiment. FIG. 5 is a block diagram illustrating the space effect system according to the present embodiment. FIG. 6 is a diagram illustrating the space effect method according to the present embodiment. FIG. 7 is a front view illustrating an example of the surface light source device included in the space effect system according to the first modification of the present embodiment. FIG. 8 is a diagram illustrating a space effect method according to a first modification of the present embodiment. FIG. 9 is a perspective view showing a space effect system according to a second modification of the present embodiment. FIG. 10 is a front view showing a surface light source device included in the space effect system according to the second modification of the present embodiment. FIG. 11 is a diagram illustrating a space effect method according to a second modification of the present embodiment. FIG. 12 is a front view showing a surface light source device included in the space effect system according to the third modification of the present embodiment. FIG. 13 is a diagram illustrating a space effect method according to a third modification of the present embodiment. FIG. 14 is a diagram illustrating a space effect method according to a fourth modification of the present embodiment. FIG. 15 is a first perspective view showing a space effect system according to a fifth modification of the present embodiment. FIG. 16 is a second perspective view showing a space effect system according to a fifth modification of the present embodiment. FIG. 17 is an enlarged cross-sectional view showing a surface light source device included in the space effect system according to the sixth modification of the present embodiment. FIG. 18 is an enlarged sectional view showing a surface light source device included in a space effect system according to a seventh modification of the present embodiment. FIG. 19 is a diagram illustrating a space effect method according to an eighth modification of the present embodiment. FIG. 20 is a cross-sectional view illustrating an example of the surface light source device included in the space effect system according to the ninth modification of the present embodiment. FIG. 21 is a diagram showing an application example of the space effect system to a desk space in the space effect system according to the tenth modification of the present embodiment. FIG. 22 is a diagram illustrating an application example of the space effect system to a space adjacent to spectacles in the space effect system according to the tenth modification of the present embodiment. FIG. 23 is a perspective view showing a space effect system according to an eleventh modification of the present embodiment. FIG. 24 is a cross-sectional view illustrating an example of the surface light source device included in the space effect system according to the eleventh modification of the present embodiment. FIG. 25A is a cross-sectional view illustrating an example of the surface light source device included in the space effect system according to the twelfth modification of the present embodiment. FIG. 25B is a cross-sectional view illustrating another example of the surface light source device included in the space effect system according to the twelfth modification of the present embodiment. FIG. 26 is a cross-sectional view illustrating another example of the surface light source device included in the space effect system according to the twelfth modification of the present embodiment. FIG. 27 is a cross-sectional view illustrating an example of the surface light source device included in the space effect system according to the thirteenth modification of the present embodiment. FIG. 28 is an exploded perspective view showing an example of the surface light source device included in the space effect system according to the thirteenth modification of the present embodiment.

  Hereinafter, a space effect system and a space effect method according to the present embodiment will be described with reference to the drawings. In the drawings attached to the present specification, the scale and the size ratio in the vertical and horizontal directions are appropriately changed and exaggerated for the sake of convenience of illustration and understanding.

  Further, as used herein, to specify the shape and geometric conditions and the degree thereof, for example, the terms "parallel", "orthogonal", "identical" and the like, without being bound by the strict meaning, It should be interpreted to include a range in which similar functions can be expected.

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

  Further, the “sheet surface (film surface, plate surface)” refers to a target sheet-like (film-like, plate-like) member when viewed as a whole and globally. It refers to the surface that matches the plane of the plate-shaped member. Further, the normal direction to the sheet-shaped (film-shaped, plate-shaped) member refers to the normal direction to the sheet surface (film-surface, plate-shaped) of the sheet-shaped (film-shaped, plate-shaped) member. Point.

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

(Space production system 1)
1 to 22 are diagrams illustrating a plurality of examples of the present embodiment. FIG. 1 is a perspective view showing the space effect system 1 according to the present embodiment. FIG. 2 is a plan view showing the space effect system 1 according to the present embodiment. The space effect system 1 according to the present embodiment is a system for effecting a space by emitting light into the space. In other words, the space effect system 1 is a system that emits light into a space to form an atmosphere in the space so as to generate a desirable mental state for a user of the space.

  Specifically, the space effect system 1 according to the present embodiment illuminates and effects a space S in a room defined by first to fourth walls W1 to W4, a ceiling CE, and a floor F, which are examples of a structure. Can be used to The room exemplified in FIG. 2 is a rectangular room having four corners C1 to C4 partitioned by four adjacent walls W1 to W4, but the space effect system 1 is a room other than a rectangular room. It can be applied effectively to production.

  The space effect system 1 includes a base lighting device 3 that irradiates the space S with illumination light, first to fourth surface light source devices 21 to 24, and a system control unit 4. As shown in FIG. 3, the surface light source devices 21 to 24 together with the board 5, the decorative sheet 6, the auxiliary building material 7, and the fastener 9 constitute a building material panel 20 included in the space effect system 1. As shown in FIG. 1, the surface light source devices 21 to 24 are concealed from the space S by the decorative sheet 6 so as not to be directly recognized by a user of the space S. However, the decorative sheet 6 is not an essential component of the present disclosure, and can be removed as needed.

(Surface light source devices 21 to 24)
Hereinafter, the surface light source devices 21 to 24 will be described in detail. The first surface light source device 21 is an example of a first light emitting unit that is provided on a first wall W1, which is an example of a first position, and emits first light to a space S. Further, the first surface light source device 21 is also an example of a first light emitting device having a light emitting surface 210a that is an example of a first light emitting surface. More specifically, the first surface light source device 21 is provided at a position on the upper end side of the first wall W1 extending from the floor F toward the upper side d11 in the vertical direction d1. This position is, for example, a position higher than the eye level of the user when the user of the space S stands on the floor F.

  The second surface light source device 22 is an example of a second light emitting unit that is provided on the second wall W2 that is an example of the second position and that emits the second light to the space S. The second surface light source device 22 is also an example of a second light emitting device having a light emitting surface 210a that is an example of a second light emitting surface. More specifically, the second surface light source device 22 is provided at a position on the upper end side of the second wall W2 extending from the floor F toward the upper side d11 in the vertical direction d1. The position and range of the second surface light source device 22 in the vertical direction d1 may be the same as or different from those of the first surface light source device 21.

  The third surface light source device 23 is an example of a first light emitting unit that is provided on a third wall W3, which is an example of a first position, and that emits first light to the space S. Further, the third surface light source device 23 is also an example of a first light emitting device having a light emitting surface 210a which is an example of a first light emitting surface. More specifically, the third surface light source device 23 is provided at a position on the upper end side of the third wall W3 extending from the floor F toward the upper side d11 in the vertical direction d1. The position and range of the third surface light source device 23 in the vertical direction d1 may be the same as the first surface light source device 21 or may be different.

  The fourth surface light source device 24 is an example of a second light emitting unit that is provided on the fourth wall W4, which is an example of the second position, and emits the second light to the space S. The fourth surface light source device 24 is also an example of a second light emitting device having a light emitting surface 210a that is an example of a second light emitting surface. More specifically, the fourth surface light source device 24 is provided at a position on the upper end side of the fourth wall W4 extending from the floor F toward the upper side d11 in the vertical direction d1. The position and range of the fourth surface light source device 24 in the vertical direction d1 may be the same as the first surface light source device 21 or may be different.

  More specifically, as shown in FIG. 2, the first surface light source device 21 has a longer distance from the entrance / exit D than the fourth wall W4 provided with the entrance / exit D and the second wall W2 adjacent thereto. It is provided on the first wall W1. Further, the third surface light source device 23 is provided on a third wall W3 whose distance from the entrance D is longer than the fourth wall W4 and the second wall W2.

  In the example of FIG. 2, a table T is installed at the center of the room. The screen SC is provided on the third wall W3 facing the fourth wall W4. The second wall W2 faces the first wall W1 with the table T interposed therebetween. For example, as shown by the dashed arrow in FIG. 2, after the user of the room enters the room from the entrance D and proceeds on the passage between the table T and the second wall W2 toward the third wall W3. When the user sits at the seating position P1 with the second wall W2 as the back, the user easily sees the first wall W1 and the third wall W3, and the second wall W2 and the fourth wall W4. Tend to be hard to see. Based on the positional relationship between the walls W1 to W4, which are different in the ease of entry and the difficulty of entry into the field of view of the user, the system control unit 4 controls the user by the light emitted from the surface light source devices 21 to 24. The light emission operation of the surface light source devices 21 to 24 is controlled in order to suppress discomfort. As another view, it can be considered that the first wall W1 and the third wall W3 are located in front of the user, and the second wall W2 and the fourth wall W4 are located behind the user. it can. As yet another viewpoint, the first wall W1 and the third wall W3 and the second wall W2 and the fourth wall W4 can be regarded as having a point-symmetric relationship with respect to the center of the space. . Details of the control will be described later.

  FIG. 3 is a cross-sectional view illustrating an example of the surface light source devices 21 to 24 included in the space effect system 1 according to the present embodiment. FIG. 4 is an enlarged sectional view illustrating an example of the surface light source devices 21 to 24 included in the space effect system 1 according to the present embodiment.

  As shown in FIG. 3, the surface light source devices 21 to 24 each include a light emitting surface 210a, and include an optical member 210 that converts light emitted from a light emitting body 220, which is an example of a light source, into planar light. The amount of light emitted from a certain position of the light emitting surface 210a may be smaller than the amount of light emitted from another certain position of the light emitting surface 210a located above d11 in the vertical direction d1 along the light emitting surface 210a. Good. By doing so, the atmosphere in the space S can be effectively enhanced. In particular, by reducing the light emission amount at the edge of the lower side d12 in the vertical direction d1 of the light emitting surface 210a, it is possible to make the light seam between the light emitting surface 210a and the region outside the light emitting surface 210a inconspicuous. . This makes it possible to more effectively enhance the atmosphere in the space S.

  A more specific configuration of the surface light source devices 21 to 24 will be described. The surface light source devices 21 to 24 have a decorative sheet 6 that forms a decorative surface that is the frontmost surface of the building material panel 20. The decorative sheet 6 includes a light-emitting region Z1 facing the light-emitting surface 210a of the optical member 210, and a non-light-emitting region Z2 adjacent to the light-emitting region Z1. In this way, by separately illuminating the decorative sheet 6 with the surface light source devices 21 to 24 separately from the base illumination device 3 that mainly aims to improve the brightness of the space S, the spread to the finite space S is increased. Can be granted. In particular, the light emitting area Z1 of the decorative sheet 6 is limited to a limited range, and the light emitting surface 210a of the optical member 210 is concealed by the decorative sheet 6, so that the seam of light on the decorative sheet 6, that is, the light emitting area Z1 and the light emitting area Z1 do not emit light. The seam with the region Z2 is even less noticeable than the seam between the light emitting surface 210a and the region outside the light emitting surface 210a when the light emitting surface 210a is exposed. With this contrivance, the space S can be produced in a state where the presence of the light source is effectively reduced, whereby the atmosphere of the space S can be more effectively enhanced.

  The surface light source devices 21 to 24 have the decorative sheet 6 and the optical member 210 as main components as described above. In the illustrated example, the surface light source devices 21 to 24 are formed in a plate shape as a whole, and a part or all of the surface light source devices 21 to 24 constitute the building material panel 20. As shown in FIG. 3, the building material panel 20 may function as an inner wall material of a room when being overlapped on the walls W1 to W4. In such an example, all or a part of the components of the building material panel 20 may be handled as an assembly kit for manufacturing the building material panel 20, and may be distributed or sold. Alternatively, the building material panel 20 alone may form the inner wall of the room.

  In one specific example shown in FIG. 3, the building material panel 20 includes the auxiliary building material 7, the fastener 9, and the board 5 in addition to the decorative sheet 6 and the optical member 210.

  As shown in FIGS. 1 and 3, the decorative sheet 6 is exposed in the space S. And the decorative sheet 6 forms the surface of the surface light source devices 21 to 24 on the most outgoing light side. As the decorative sheet 6, it is possible to use wallpaper for buildings, interior materials such as floors and ceilings, interior materials for moving objects such as vehicles, members forming the outermost surface of furniture and electric equipment, and the like.

  As described above, the decorative sheet 6 includes the light-emitting region Z1 facing the light-emitting surface 210a of the optical member 210 and the non-light-emitting region Z2 shifted from the position facing the light-emitting surface 210a. The non-light emitting area Z2 is adjacent to the light emitting area Z1. The decorative sheet 6 is irradiated with light from the back side by the optical member 210 in the light emitting area Z1. The decorative sheet 6 has visible light transmittance at least in the light emitting region Z1. For this reason, at least a part of the light emitted from the light emitting surface 210a of the optical member 210 can pass through the light emitting region Z1 of the decorative sheet 6. Since the decorative sheet 6 is transmitted and illuminated in this way, white wallpaper having a relatively high transmittance is preferably used as the decorative sheet 6. However, even a wallpaper having a relatively low transmittance, for example, a wood-grained wallpaper, can be sufficiently effectively transmitted and illuminated to achieve the operation and effect described below, and the pattern of the decorative sheet 6 is not particularly limited. The visible light transmittance in the light emitting region Z1 of the decorative sheet 6 is preferably 1.0% or more, and more preferably 10% or more. The visible light transmittance was measured using an infrared-visible ultraviolet spectrophotometer (UV3100PC manufactured by Shimadzu Corporation) in the wavelength range of 380 nm to 780 nm according to JIS A5759-2008, and specified in the same standard. It is calculated by the following calculation formula.

  As shown in FIG. 3, the light emitting area Z1 and the non-light emitting area Z2 are arranged in the vertical direction d1. The light emitting area Z1 is located on the upper side d11 in the vertical direction d1, and the non-light emitting area Z2 is located on the lower side D12 in the vertical direction d1.

  In addition, it is preferable to make the boundary between the light emitting area Z1 and the non-light emitting area Z2 of the decorative sheet 6 inconspicuous from the viewpoint of expecting the effect of enhancing the atmosphere of the space by the surface light source devices 21 to 24. From this point, it is preferable that the decorative sheet 6 has the same configuration in the light emitting area Z1 and the non-light emitting area Z2.

  As shown in FIG. 3, the board 5 is a plate-shaped member. The board 5 is arranged so as to face at least the non-light-emitting area Z2 of the decorative sheet 6. The decorative sheet 6 may be bonded to the board 5. In this case, the decorative sheet 6 can be stably supported by the board 5.

  In the example shown in FIG. 3, the board 5 is disposed so as to face both the non-light emitting area Z2 and the light emitting area Z1. The board 5 is provided with a concave portion 51 at a position facing the light emitting area Z1. The optical member 210 is accommodated in the concave portion 51 of the board 5. According to the example of FIG. 3, the optical member 210 can be stably supported by the board 5. The fastener 9 is provided on the board 5, and fixes the optical member 210 on the board 5. In addition, the board 5 and the optical member 210 may be fixed by a bonding layer containing an adhesive or an adhesive in addition to or instead of the fastener 9.

  The light-emitting surface 210a of the optical member 210 is preferably located on the same plane as the surface 5a of the board 5 facing the non-light-emitting area Z2 of the decorative sheet 6. The decorative sheet 6 is laminated on the board 5 and the optical member 210 thus positioned. In this case, it is difficult for a step to be formed between the surface 5a of the board 5 and the light emitting surface 210a of the optical member 210, and the design of the decorative sheet 6 due to the visual recognition of the step through the decorative sheet 6 is reduced. It can be suppressed effectively. Further, the presence of the optical member 210 can be effectively made inconspicuous when the surface light source devices 21 to 24 emit light, and the effect of increasing the atmosphere of the space S by the surface light source devices 21 to 24 is more remarkably exhibited. become.

  The board 5 is determined according to the use of the decorative sheet 6. When the decorative sheet 6 is a member for decorating the surface of a wall, floor, ceiling, or the like, as an example, the board 5 is made of a veneer made of seed wood, a plywood, a laminated wood, a particle board, a fiberboard, or another wooden board. It is an inorganic non-metallic plate made of a plate material, a cement material such as concrete or mortar, a gypsum board, calcium silicate or the like, or a metal plate made of iron, aluminum or the like. When the decorative sheet 6 forms an interior material of a moving body such as a vehicle, the board 5 is, for example, a resin plate or a metal plate. When the decorative sheet 6 forms furniture or an electric product, the board 5 is, for example, a wooden plate or a resin plate. In applying the surface light source devices 21 to 24 to the building material panel 3, the board 5 preferably has flame resistance and fire resistance.

  In addition, in FIG. 3, along with the illustration of the fastener 9, the decorative sheet 6 is illustrated with a gap between the board 5 and the optical member 210. However, they may be bonded to the board 5 and the optical member 210 without leaving a gap.

  The auxiliary building material 7 is a member provided at a joint between the ceiling CE and the walls W1 to W4. The auxiliary building material 7 covers the joint between the ceiling CE and the walls W1 to W4, and improves the design of the building material panel 20. As the auxiliary building material 7, a member called "surrounding edge" or "baseboard" can be used. However, the auxiliary building material 7 can be omitted.

  As shown in FIG. 3, the optical member 210 has a light emitting surface 210a that emits planar light. The optical member 210 is positioned such that its light emitting surface 210a faces only a part of the decorative sheet 6.

  Here, specific examples of the surface light source devices 21 to 24 will be described. The surface light source devices 21 to 24 shown in FIG. 4 are configured as edge light type surface light source devices 21 to 24. The surface light source devices 21 to 24 include a light emitting body 220 and an optical member 210. The optical member 210 includes a light diffusion sheet 212, a reflection sheet 213, and a light guide plate 211. In addition, as the surface light source devices 21 to 24, for example, a surface light source device using a direct type LED, a surface light source device using an EL (Electro Luminescence) sheet, or the like may be used. It may be configured by a combination with a surface light source device.

  The light emitter 220 emits light. The specific mode of the light emitting body 220 is not particularly limited, and various members that emit light can be widely used. Specifically, for example, a cold-cathode tube, a point-like full-color light emitting diode (LED), an incandescent lamp, a laser oscillator, or the like can be used as the light emitter 220. In the example shown in FIG. 3, the light emitter 220 is held by the auxiliary building material 7. A plurality of light-emitting bodies 220 are arranged at intervals along the horizontal direction d2 shown in FIG. 2 which is the longitudinal direction of the auxiliary building material 7. When the auxiliary building material 7 is removable, the plurality of luminous bodies 220 can be removed together with the auxiliary building material 7 from the walls W1 to W4, and part or all of the plurality of luminous bodies 220 can be replaced.

  The light guide plate 211 is a plate-shaped member having a pair of main surfaces 211a and 211b and a side surface located between the pair of main surfaces 211a and 211b. One main surface forms a light emitting surface 211a, and the other main surface forms a back surface 211b. The main surfaces 211a and 211b typically have a rectangular shape in plan view. The main surfaces 211a and 211b have a pair of side edges extending along the vertical direction d1 and a pair of side edges extending along a horizontal direction d2 orthogonal to the vertical direction d1.

  As shown in FIG. 4, the light guide plate 211 has a light incident surface 211d located on the upper end side in the vertical direction d1. The light incident surface 211d extends in the horizontal direction d2 along the auxiliary building material 7. The light incident surface 211d faces the light emitting body 220 held by the auxiliary building material 7. The plurality of light emitters 220 are arranged at intervals along a horizontal direction d2 which is a longitudinal direction of the light incident surface 211d.

  As shown in FIG. 4, light emitted from the light emitting body 220 enters the light guide plate 211 and travels inside the light guide plate 211. The main surface 211b of the light guide plate 211 is provided with a concave portion 211c functioning as an extraction element. The concave portion 211c changes the traveling direction of the light L1, L2 traveling inside the light guide plate 211. The light emitted from the light emitter 220 enters the light guide plate 211 from the light incident surface 211d, and travels through the light guide plate 211 by being reflected, especially totally reflected. The lights L1 and L2 traveling inside the light guide plate 211 are incident on the pair of main surfaces 211a and 211b of the light guide plate 211 at an incident angle smaller than the critical angle for total reflection by changing the traveling direction by the concave portion 211c, particularly by scattering. As a result, the light can be emitted from the light guide plate 211.

  The light whose traveling direction has been changed by the concave portion 211c is emitted from the light guide plate 211 through one of the pair of main surfaces 211a and 211b. A light diffusion sheet 212 is provided to face the light exit surface 211a of the light guide plate 211. The light L1, L2 emitted from the light exit surface 211a of the light guide plate 211 then enters the light diffusion sheet 212. The light diffusion sheet 212 has a light diffusion function, and can adjust a luminance angle distribution caused by transmitted light. The light diffusion sheet 212 forms the light emitting surface 210a of the optical member 210. The light diffused by the light diffusion sheet 212 exits from the optical member 210 and travels to the decorative sheet 6. Various configurations capable of exhibiting a light diffusion function can be adopted for the light diffusion sheet 212. The diffusion characteristics of the light diffusion sheet 212 may be isotropic or anisotropic.

  A reflection sheet 213 is provided facing the back surface 211b of the light guide plate 211. The reflection sheet 213 can reflect light emitted from the back surface 211 b and direct the light to the light guide plate 211 and the light diffusion sheet 212. By providing the reflection sheet 213, the amount of light emitted from the light emitting surface 210a of the optical member 210 can be increased. Accordingly, the efficiency of using light emitted from the light emitting body 220 can be improved. Various configurations capable of exhibiting a light reflection function can be adopted for the reflection sheet 213. The reflection characteristic of the reflection sheet 213 may be specular reflection or diffuse reflection. The diffuse reflection characteristics of the reflection sheet 213 may be isotropic or anisotropic.

(Base lighting device 3)
Next, the base lighting device 3 will be described. As shown in FIGS. 1 and 3, the base lighting device 3 is attached to the ceiling CE, and emits the illumination light Lx to the space S from above. The base lighting device 3 may be fixed to the ceiling CE or may be suspended from the ceiling CE. The base lighting device 3 assists in grasping the space S through human vision. Therefore, as the base lighting device 3, a general device for indoor lighting can be used.
The illumination light Lx emitted from the base illumination device 3 is not particularly limited, but a natural illumination can be achieved by using a white light.

(System control unit 4)
Next, the system control unit 4 will be described. FIG. 5 is a block diagram showing the space effect system 1 according to the present embodiment. The system control unit 4 controls at least one of brightness and color of light emitted from the surface light source devices 21 to 24 into the space S.

  3 and 5, the system control unit 4 is electrically connected to the light emitters 220 of the surface light source devices 21 to 24. The system control unit 4 controls the light emission operation of the light emitter 220 by controlling the power supplied to the light emitter 220 from a power supply (not shown). By controlling the light emitting operation of the light emitting body 220, the system control unit 4 controls at least one of brightness and color of light emitted from the surface light source devices 21 to 24 to the space S.

  The specific mode of the system control unit 4 is not particularly limited as long as it can cause the surface light source devices 21 to 24 to perform an intended light emitting operation. For example, the system control unit 4 is incorporated in an electric circuit that supplies power to the light emitting body 220 from a power supply, and controls the operation of circuit elements of the electric circuit, and stores data used for processing of the control circuit. It is composed of hardware such as devices. At least a part of the system control unit 4 may be configured by software. The whole of the system control unit 4 may be provided outside the building material panel 20, or at least a part thereof may be provided inside the building material panel 20. Further, the system control unit 4 may be capable of cooperating with some of the components by communicating with other components via a network. Further, the system control unit 4 may have some of its components on a device capable of communicating with another component via an external network, for example, on a server or database on a cloud. In addition, the system control unit 4 may include an interface with an external device that generates usage status information such as a communication device and an input / output port in order to obtain usage status information described later.

  The system control unit 4 changes the power supplied from the power supply to the light-emitting body 220 in accordance with the order or timing according to the positional relationship between the walls W1 to W4, so that the power is emitted from the surface light source devices 21 to 24 to the space S. At least one of the brightness and the color of the light. The system control unit 4 acquires data and commands related to the order of the change set in advance from an external storage device or its own storage area, and, based on the acquired data and commands, according to the order of the change, At least one of the brightness and the color of the light of the devices 21 to 24 may be changed.

  More specifically, the system control unit 4 controls the brightness of the light emitted from the second surface light source device 22 and the fourth surface light source device 24 provided on the walls W2 and W4 whose distance from the entrance D is short. And after changing at least one of the colors and the brightness of the light emitted from the first surface light source device 21 and the third surface light source device 23 provided on the walls W1 and W3 whose distance from the entrance D is long. Change at least one of the colors.

  For example, after increasing the brightness of the light emitted from the second surface light source device 22 and the fourth surface light source device 24, the system control unit 4 sets the first surface light source device 21 and the third surface light source The brightness of the light emitted from the device 23 may be increased.

  Further, the system controller 4 makes the first surface light source device 21 and the third surface light source device 23 darken the color of light emitted from the second surface light source device 22 and the fourth surface light source device 24. The color of light emitted from the camera may be darkened.

In the example illustrated in FIG. 3, the change in brightness can be detected as a change in the measured brightness by measuring the brightness of the decorative surface of the decorative sheet 6 from inside the space S using a luminance meter. The change in color can be detected as a change in the measured color temperature by measuring the color temperature of the decorative surface of the decorative sheet 6 from inside the space S using a color thermometer. More specifically, a change in color can be detected as a change in the color difference: ΔE ^* _ab described in JIS Z 8730: 2009 that is larger than 0.2.

  In addition, in the example of FIG. 5, the system control unit 4 acquires usage status information indicating the usage status of the room, that is, the space S. Then, the system control unit 4 changes at least one of the brightness and the color of the light emitted from the surface light source devices 21 to 24 according to the usage status indicated in the obtained usage status information.

  As the usage status information, for example, time information indicating the elapsed time since the user entered the room, position information indicating the position of the user in the room, seating information indicating the seating state of the user, and a schedule for using the room Schedule information to be shown. The specific mode for acquiring the usage status information is not particularly limited. The system control unit 4 may obtain the usage status information by its own arithmetic function, or may obtain the usage status information detected by an external detection device from the detection device.

  For example, the system control unit 4 electrically detects that a switch for turning on the base lighting device 3 is turned on when entering a room, and measures time information by measuring a time elapsed from a time when the switch is turned on by a timer function. May be obtained. Further, the system control unit 4 may acquire a detection signal of an indoor object by an infrared sensor or a camera, and acquire position information based on the acquired detection signal. Further, the system control unit 4 may acquire an ON signal or an OFF signal as seating information from a seat switch provided on the chair. Further, the system control unit 4 may acquire the schedule information by communicating with a room reservation system that manages a room schedule.

  The specific mode of the control for changing at least one of the brightness and the color of the light emitted from the surface light source devices 21 to 24 according to the use state of the room is not particularly limited. The system control unit 4 may change at least one of the brightness and the color of the light emitted from the surface light source devices 21 to 24 based on the single use status information. Alternatively, the system control unit 4 may change at least one of brightness and color of light emitted from the surface light source devices 21 to 24 based on a combination of a plurality of pieces of usage status information.

  For example, the system control unit 4 may control the second surface light source device 22 and the fourth surface light source device based on at least one of the time information, the position information, and the seating information within a period from the time of entering the room to the time of sitting. At least one of the brightness and the color of the light emitted from 24 may be changed to the target brightness and color. Then, based on at least one of the time information and the schedule information, the system control unit 4 emits the light from the first surface light source device 21 and the third surface light source device 23 within a period from the time of sitting to the time of starting the conference. At least one of the brightness and the color of the light may be changed to the target brightness and color.

  Thus, after changing the brightness and color of the light of the surface light source devices 22 and 24 provided at the positions W2 and W4 near the entrance D, the surface light source devices provided at the positions W1 and W3 far from the entrance D By changing the brightness and the color of the light of the light sources 21 and 23, the brightness and the color of the light of the surface light source devices 21 and 23 that easily enter the field of view of the user suddenly change, thereby giving a sense of incongruity to the user. Can be avoided. By avoiding discomfort, the atmosphere of the space S in the room can be effectively produced. The brightness and color of the light emitted from the surface light source devices 21 to 24 may be changed continuously or stepwise. However, in order to suppress the sense of discomfort more effectively, the change may be continuous. More preferred.

  The system control unit 4 changes, for example, at least one of the brightness and the color of the light of the surface light source devices 22 and 24 that easily enter the field of view of a specific user located at the specific position P2 after the start of the conference. You may. As an example, FIG. 2 illustrates a position P2 of a user who makes a presentation using the screen SC. For such a user, even if the brightness and color of light emitted from the surface light source devices 22 and 24 that easily enter the field of view are changed to brightness and color that are effective for alleviating tension and the like. Good. In this way, by positively changing the brightness and color of the light of the surface light source devices 21 to 24 provided at positions that are easy to enter the field of view for a specific user, it is suitable for the specific user. It is possible to produce the atmosphere of the space S.

  In addition to this, for example, the system control unit 4 determines whether the current time is during a meeting or during a break based on schedule information or the like. For example, the surface light source devices 21 to 24 may be controlled so as to emit, for example, red light that is effective. On the other hand, when a break is in progress, the system control unit 4 may control the surface light source devices 21 to 24 so as to emit, for example, green light that is effective for giving the user comfort.

  Further, in order for the system control unit 4 to enhance the effect of producing the space S, usage status information other than the usage status information described above may be used.

  For example, as illustrated in FIG. 4, the system control unit 4 acquires health state measurement information obtained by measuring a user's pulse and blood pressure from the wearable device through communication with a wearable device worn by the user. Good. In this case, the system control unit 4 may determine whether the user is tired based on the acquired health condition measurement information. When the system control unit 4 determines that the user is tired because the increase amount of the pulse and the blood pressure of the user indicated in the health condition measurement information exceeds the threshold, the system control unit 4 may provide healing to the user. The surface light source devices 21 to 24 may be controlled to emit effective, for example, green or purple light.

  In addition, as shown in FIG. 5, the system control unit 4 may acquire audio information input from a sound system to a microphone by communicating with a sound system installed in a room. When the volume indicated by the input audio information exceeds the threshold, the system control unit 4 emits, for example, blue light that is effective to calm the user. 21 to 24 may be controlled.

  As shown in FIG. 5, the system control unit 4 may acquire illuminance information obtained by measuring the illuminance in the room from an illuminometer installed in the room. Then, the system control unit 4 may control the brightness of the light of the surface light source devices 21 to 24 according to the illuminance information.

(Space production method)
Hereinafter, an example of a space effect method to which the space effect system 1 is applied will be described with reference to FIG. FIG. 6 is a diagram illustrating the space effect method according to the present embodiment. FIG. 6 illustrates, for each of the surface light source devices 21 to 24 in the horizontal column, an operation content corresponding to the use status in the vertical column.

  First, before the user enters the room, the system control unit 4 turns off all the surface light source devices 21 to 24.

  Next, when the user enters the room, the system control unit 4 controls the light emitted from all the surface light source devices 21 to 24 to the space S to be white. White is the same color as the irradiation light of the base lighting device 3. In this way, by matching the color of the light of the surface light source devices 21 to 24 at the time of starting use of the room with the color of the irradiation light of the base lighting device 3, it is possible to effectively suppress the user's discomfort.

  The system control unit 4 may make the brightness of the white light of the surface light source devices 21 to 24 darker than the brightness of the white light of the base lighting device 3. For example, the system control unit 4 may control the luminance of the white light of the surface light source devices 21 to 24 to 10% or less of the luminance of the white light of the base lighting device 3. Thereby, the white light of the surface light source devices 21 to 24 can be made less noticeable, so that the user's discomfort can be more effectively suppressed.

  Next, when the user is seated, the system control unit 4 changes the color of light of the surface light source devices 22 and 24 provided on the walls W2 and W4 near the entrance D to magenta. At this time, the system control unit 4 starts the stepwise change of the color of light of the surface light source devices 21 and 23 provided on the walls W1 and W3 far from the entrance D to magenta.

  Here, the walls W1 and W3 far from the entrance D are located at the end of the traveling direction of the user during the time from entering the room through the entrance D to sitting down, so that they can easily enter the field of view of the user. If the color of the light of the surface light source devices 21 and 23 provided on the walls W1 and W3 far from the entrance D is suddenly changed to magenta before seating, the change is likely to be noticeable to the user. Therefore, there is a possibility that the user may feel uncomfortable.

  On the other hand, in the present embodiment, the color of light of the surface light source devices 21 and 23 provided on the walls W1 and W3 far from the entrance D is not changed from the time of entering the room to the time of sitting. White can be maintained. As a result, it is possible to avoid giving the user a sense of discomfort.

  On the other hand, during the period from entry to seating, the walls W2 and W4 close to the entrance D are hard to enter the user's view because the user often turns the back. In the present embodiment, by changing the color of light of the surface light source devices 22 and 24 provided on the walls W2 and W4 near the entrance D to the target red-purple color by the time of seating, the user may feel uncomfortable. The atmosphere of the space can be produced quickly while avoiding the obstacle. The timing at which the target color change of the surface light source devices 22 and 24 is completed may be the same or different. The speed of change of the color of the light of the surface light source devices 22 and 24 may be changed according to the area ratio of the dimming region of the wall W2 and the wall W4. For example, when the area of the dimming region of the wall W4 is smaller than that of the wall W2, the surface light source device 22 may change the color of light faster than the surface light source device 24.

  Next, at the time of waiting for the start of the conference, the system control unit 4 maintains the light colors of the surface light source devices 22 and 24 provided on the walls W2 and W4 close to the entrance D to magenta. At this time, the system control unit 4 continues the stepwise change of the color of light of the surface light source devices 21 and 23 provided on the walls W1 and W3 far from the entrance D to magenta. Since the change of the color of the light of the surface light source devices 22 and 24 is started before the change of the color of the light of the surface light source devices 21 and 23 is started, the light of the surface light source devices 22 and 24 is given to the user in advance. As a result, it is considered that the user is unlikely to feel uncomfortable with the change in the color of the light of the surface light source devices 21 and 23.

  Next, at the start of the conference, the system control unit 4 maintains the light colors of the surface light source devices 22 and 24 provided on the walls W2 and W4 near the entrance D to be purple. At this time, the system control unit 4 completes the stepwise change of the light color of the surface light source devices 21 and 23 provided on the walls W1 and W3 far from the entrance D to magenta. The timings at which the target color changes of the surface light source devices 21 and 23 are completed may be the same or different. Note that the speed of change in the color of light of the surface light source devices 21 and 23 may be changed according to the ratio of the wall W1 and the wall W3 included in the user's field of view. For example, when the wall of the user W3 includes more walls W3 than the wall W1, the surface light source device 21 may change the color of light faster than the surface light source device 23. Further, the speed of change of the color of light of the surface light source devices 21 and 23 may be changed according to the area ratio of the dimming region of the wall W1 and the wall W3. For example, when the area of the light control area of the wall W3 is smaller than the wall W1, the surface light source device 21 may change the color of light faster than the surface light source device 23.

  In this way, by gradually changing the color of light of the surface light source devices 21 and 23 provided on the walls W1 and W3 far from the entrance D over a certain period of time, it is possible to more reliably avoid a sense of discomfort given to the user. can do.

  Next, during the meeting, the system control unit 4 dims light from the surface light source devices 21 to 24 according to the purpose. For example, the system control unit 4 detects that the conference is confusing based on the above-described audio information and the like, and changes the color of the light of the surface light source devices 21 to 24 to a blue color so that a cool discussion can be performed. May be.

  Next, after the conference, the system control unit 4 changes the color of light of all the surface light source devices 21 to 24 to white.

  Next, at the time of leaving, the system control unit 4 maintains the light of all the surface light source devices 21 to 24 as white light or turns off the light.

  As described above, in the present embodiment, the surface light source devices 21 to 24 are arranged such that the brightness and color of light emitted from the surface light source devices 21 to 24 are determined in accordance with the order according to the positional relationship between the walls W1 to W4. Change at least one. Specifically, in the present embodiment, after the second and fourth surface light source devices 22 and 24 change at least one of the brightness and the color of the light, the first and third surface light source devices 21 and 24 change. , 23 change at least one of the brightness and color of the light. Thereby, it is possible to avoid the sense of incongruity given to the user of the room, and to effectively produce the atmosphere of the space.

(First Modification)
FIG. 7 is a front view illustrating an example of the surface light source device 22 included in the space effect system 1 according to the first modification of the present embodiment. Hereinafter, the space effect system 1 according to the first modification will be described with reference to FIG.

  Up to now, an example in which at least one of the color and brightness of the light of the surface light source devices 21 to 24 is changed in accordance with the order according to the distance from the entrance D to the walls W1 to W4 as the positional relationship of the walls W1 to W4. Was explained.

  On the other hand, in the first modified example, according to the order according to the distance from the entrance / exit D as the positional relationship of the walls W1 to W4 to the corners C1 to C4 located at the joint of the walls W1 to W4. At least one of the color and brightness of the light from the light source devices 21 to 24 is changed.

  The arrangement of the corners C1 to C4 is as shown in FIG. Specifically, as shown in FIG. 2, the first corner C1 is formed between an end of the second wall W2 on the side opposite to the entrance D and an end of the third wall W3 on the entrance D side. Located at the seam. The second corner C2 is located at a joint between the end of the second wall W2 on the entrance D side and the end of the fourth wall W4 on the entrance D side. The third corner C3 is located at a joint between an end of the fourth wall W4 opposite to the entrance D and an end of the first wall W1 on the entrance D side. The fourth corner C4 is located at a joint between an end of the first wall W1 opposite to the entrance D and an end of the third wall W3 opposite to the entrance D.

  Among the corners C1 to C4, the second corner C2 has the shortest distance from the entrance D, and the fourth corner C4 has the longest distance from the entrance D.

  In the first modification, the system control unit 4 first changes at least one of the brightness and the color of the light at the second corner C2 whose distance from the entrance D is the shortest, and then changes the distance from the entrance D. Finally change at least one of the brightness and color of the light at the fourth corner C4, which is the longest.

  FIG. 7 shows a configuration example for changing the brightness and color of light in the order from the corner C2 on the side of the entrance D to the corner C4 on the side opposite to the entrance D.

  In the example of FIG. 7, the light-emitting surfaces 210a of the second and fourth surface light source devices 22 and 24 whose distances from the entrance D are short are on the second corner C2 side where the brightness of light and the timing of color change are different. And a fourth light emitting region A4 on the first or third corner C1, C3 side. Further, the light emitting surfaces 210a of the first and third surface light source devices 21 and 23 having a long distance from the entrance D are provided with the first or third corners C1 and C3 having different light brightness and color change timing. And a second light emitting region A2 on the side of the fourth corner C4.

  The system control unit 4 controls at least the brightness and the color of the light emitted from the third light emitting area A3 whose distance from the entrance D is short among the light emitting surfaces 210a of the second and fourth surface light source devices 22 and 24. After changing one of them, at least one of the brightness and the color of the light emitted from the fourth light emitting area A4 whose distance from the entrance D is long is changed.

Such changes in brightness and color of light correspond to the fourth light emitting region A4 after changing the power supplied to the light emitting body 220 disposed at the position corresponding to the third light emitting region A3. This can be realized by changing the power supplied to the light emitter 220 disposed at the position.
At this time, the system control unit 4 gradually or stepwise emits light from one end on the entrance D side of the light emitting surface 210a of the second and fourth surface light source devices 22 and 24 toward the other end opposite to the entrance D. At least one of the brightness and the color of the image may be changed. Thereby, a sense of discomfort can be more effectively prevented.

  In this way, after changing the brightness and color of the light at the second corner C2, the brightness and color of the light at the first corner C1 and the third corner C3 can be changed. .

  Thereafter, the system control unit 4 determines the brightness and color of light emitted from the first light emitting area A1 of the light emitting surfaces 210a of the first and third surface light source devices 21 and 23 whose distance from the entrance D is short. After changing at least one of the above, at least one of the brightness and the color of the light emitted from the second light emitting region A2 whose distance from the entrance D is long is changed.

Such a change in brightness and color of light corresponds to the second light emitting region A2 after changing the power supplied to the light emitting body 220 disposed at the position corresponding to the first light emitting region A1. This can be realized by changing the power supplied to the light emitter 220 disposed at the position.
At this time, the system control unit 4 gradually or stepwise emits light from one end on the entrance D side of the light emitting surface 210a of the first and third surface light source devices 21 and 23 toward the other end opposite to the entrance D. At least one of the brightness and the color of the image may be changed. Thereby, a sense of discomfort can be more effectively prevented.

  Thus, after changing the brightness and color of the light at the first corner C1 and the third corner C3, the brightness and color of the light at the fourth corner C4 can be changed. .

(Space production method)
Hereinafter, an example of a space effect method to which the space effect system 1 of FIG. 7 is applied will be described with reference to FIG. FIG. 8 is a diagram illustrating a space effect method according to a first modification of the present embodiment.

  First, before the user enters the room, the system control unit 4 turns off the light in all corners C1 to C4.

  Next, when the user enters the room, the system control unit 4 controls the color of light at all corners C1 to C4 to white.

  Next, when the user is seated, the system control unit 4 changes the color of light at the second corner C2 closest to the entrance D to magenta.

  Next, at the time of waiting for the start of the conference, the system control unit 4 changes the color of light at the first corner C1 and the third corner C3 near the entrance D next to the second corner C2 to magenta. .

  Next, at the start of the conference, the system control unit 4 changes the color of light at the fourth corner C4 farthest from the entrance D to magenta.

  Next, during the meeting, the system control unit 4 dims light at the corners C1 to C4 according to the purpose.

  Next, after the conference, the system control unit 4 changes the color of light at all corners C1 to C4 to white.

  Next, at the time of exit, the system control unit 4 maintains the light in all corners C1 to C4 as white light or turns off the light.

  According to the first modification, of the walls W2 and W4 close to the entrance D, the brightness and color of the light at the corner C2 closer to the entrance D are changed first, and the walls W1 and W3 far from the entrance D are changed. Finally, the brightness and color of the light at the fourth corner C4 farther from the entrance D can be changed. As a result, the user's discomfort can be avoided more reliably, and the space effect can be further enhanced.

(Second Modification)
FIG. 9 is a perspective view showing a space effect system 1 according to a second modification of the present embodiment. The example in which the surface light source devices 21 to 24 are provided on different walls W1 to W4 has been described. On the other hand, in the second modification, a plurality of surface light source devices are provided on the same wall.

  Specifically, as shown in FIG. 9, in addition to the second surface light source device 22, a fifth surface light source device 25 and a sixth surface light source device 26 are provided on the second wall W2. Is provided. The distance from the entrance / exit D of the fifth surface light source device 25 is shorter than that of the second surface light source device 22. The distance from the entrance / exit D of the sixth surface light source device 26 is shorter than that of the fifth surface light source device 25.

  FIG. 10 is a front view showing the surface light source devices 22, 25, and 26 included in the space effect system 1 according to the second modification of the present embodiment. In the example of FIG. 10, each of the surface light source devices 22, 25, and 26 is incorporated in the building material panel 20. The surface light source devices 22, 25, and 26 are adjacent to each other with almost no gap in the horizontal direction d2 by tiling the respective building material panels 20 along the horizontal direction d2.

  FIG. 11 is a diagram illustrating a space effect method according to a second modification of the present embodiment. The system control unit 4 controls the surface light source devices 22, 25, and 26 provided at different positions on the same wall W2 in the same manner as the light emission control for the surface light source devices 21 to 24 provided on the different walls W1 to W4. Is performed.

  Specifically, as shown in FIG. 11, the system control unit 4 moves from the sixth surface light source device 26 closest to the entrance D to the second surface light source device 22 farthest from the entrance D as time passes. , The brightness of the light is increased stepwise. In FIG. 11, the brightness of the light from the surface light source devices 22, 25, and 26 is represented by brightness levels of "0" to "3". The brightness of the light can be increased by increasing the power supplied to the light emitter 220, for example, the current.

  Also in the second modified example, it is possible to effectively create the atmosphere of the space while avoiding discomfort given to the user of the room. Further, by changing the number of building material panels 20 to be tiled according to the size of the room, a space can be produced without being restricted by the size of the room.

(Third Modification)
FIG. 12 is a front view showing the surface light source devices 22, 25, and 26 included in the space effect system 1 according to the third modification of the present embodiment. FIG. 13 is a diagram illustrating a space effect method according to a third modification of the present embodiment.

  In FIGS. 10 and 11, light is transmitted in order from the surface light source device 26 on the entrance D side d21 that is hard to enter the field of view of the user to the surface D on the opposite side d22 to the entrance D that is easy to enter the field of view of the user. The example in which at least one of the brightness and the color is changed has been described.

  On the other hand, as shown in FIG. 13, the system control unit 4 in the third modification first sets the light-emitting surface 210 a of the surface light source devices 22, 25, and 26 first at the top d 11 from the user's eyes. The brightness of the remote upper light emitting regions 221, 251 and 261 is increased to level "1".

  Next, the system control unit 4 determines the brightness of the intermediate light-emitting areas 222, 252, and 262 adjacent to the upper light-emitting areas 221, 251, and 261 in the lower part d12 of the light-emitting surfaces 210a of the surface light source devices 22, 25, and 26. To the level “1”. At this time, the system control unit 4 increases the brightness of the upper light emitting areas 221, 251 and 261 to level "2".

  Next, the system control unit 4 increases the brightness of the lower light-emitting areas 223, 253, and 263 closest to the user's eye line among the light-emitting surfaces 210a of the surface light source devices 22, 25, and 26 to the level “1”. . At this time, the system control unit 4 increases the brightness of the intermediate light emitting areas 222, 252, and 262 to the level “2”, and increases the brightness of the upper light emitting areas 221, 251 and 261 to the level “3”. Let it. In the positional relationship between the upper light emitting regions 221, 251, 261 and the intermediate light emitting regions 222, 252, 262, the upper light emitting regions 221, 251, 261 correspond to a second light emitting portion, that is, a second light emitting region. The partial light emitting regions 222, 252, and 262 correspond to a first light emitting portion, that is, a first light emitting region. In the positional relationship between the intermediate light-emitting regions 222, 252, and 262 and the lower light-emitting regions 223, 253, and 263, the intermediate light-emitting regions 222, 252, and 262 correspond to a second light emitting portion, that is, a second light-emitting region. The lower light emitting regions 223, 253, 263 correspond to a first light emitting portion, that is, a first light emitting region.

  In the edge light type surface light source devices 22, 25, and 26, the power supplied to the light emitting body 220 is increased to increase the amount of light incident on the light guide plate 211, as shown in FIG. , The brightness of the light can be increased stepwise toward the opposite side d12.

  According to the third modification, from the upper light-emitting regions 221, 251, and 261 that are hard to enter the field of view farthest from the level of the user's line of sight, the lower light emission that is easy to enter the field of view closest to the user's line of sight. At least one of the brightness and the color of the light can be changed in order toward the regions 223, 253, and 263. Thereby, also in the third modified example, it is possible to avoid a sense of incongruity given to the user of the room and effectively produce the atmosphere of the space.

(Fourth modification)
FIG. 14 is a diagram illustrating a space effect method according to a fourth modification of the present embodiment. As shown in FIG. 14, the second modified example and the third modified example may be combined.

  That is, in the fourth modified example, the uppermost light emitting area 261 of the sixth surface light source device 26 which is closest to the entrance D and which is the most distant from the user's line of sight and hardly enters the field of view, is farthest from the entrance D and used. The brightness of the light is increased stepwise toward the lower light emitting region 223 of the second surface light source device 22 which is closest to the height of the user's eyes and is most likely to enter the field of view.

  Thereby, it is possible to more effectively produce an atmosphere of the space by avoiding a sense of incongruity given to the user of the room, more effectively than in the second modification and the third modification.

(Fifth Modification)
FIG. 15 is a first perspective view showing a space effect system 1 according to a fifth modification of the present embodiment. FIG. 16 is a second perspective view showing the space effect system 1 according to a fifth modification of the present embodiment.

  The example in which the surface light source devices 21 to 24 are provided on the upper ends of the walls W1 to W4 has been described. On the other hand, as shown in FIG. 15, the surface light source devices 21 to 24 may be provided at the lower ends of the walls W1 to W4. Further, as shown in FIG. 16, by providing the surface light source devices 21 to 24 at a height closer to the height of the user's line of sight, the effect may be further enhanced.

  According to the fifth modified example, it is possible to increase the variations of the effect of the space.

(Sixth modification)
In the example of FIG. 5, the concave portion 211c is illustrated as an extraction element of the light guide plate 211. As another example, as shown in FIG. 17, the extraction element can be a light scattering layer 215 laminated on the light guide plate 211. The light scattering layer 215 has a support layer 215a functioning as a binder and a light scattering element 215b dispersed in the support layer 215a. The support layer 215a may be formed from a resin having visible light transmittance. The light scattering element 215b has a function of changing the traveling direction of light traveling in the light scattering layer 215 by reflection, refraction, diffraction, and the like. The light scattering element 215b may have a different refractive index from the support layer 215a, or may be formed of a material having light reflectivity such as a metal. Specific examples of the light scattering element 215b include a metal compound, a porous substance containing a gas, resin beads holding the metal compound around, white fine particles, bubbles, and particles having a different refractive index from the surroundings. In the example of FIG. 17, the light L1 and L2 traveling in the light guide plate 211 can change the traveling direction by colliding with the light scattering element 215b in the light scattering layer 215, and then can be emitted from the light guide plate 211. Becomes

  Note that the refractive index of the support layer 215 a of the light scattering layer 215 is preferably equal to or higher than the refractive index of the light guide plate 211. When the refractive index of the support layer 215a of the light scattering layer 215 is lower than the refractive index of the light guide plate 211, the light L3 traveling inside the light guide plate 211 is totally reflected at the interface between the light guide plate 211 and the light scattering layer 215, There is a possibility that the light cannot be incident on the light scattering layer 215. Such light L3 enters the light guide plate 211 from the light incident surface 211d, and then travels inside the light guide plate 211 to the opposite surface 211e. The presence of such light reduces the energy efficiency of the light emitting body 220. By setting the refractive index of the support layer 215a to be equal to or higher than the refractive index of the light guide plate 211, total reflection at the interface between the light guide plate 211 and the light scattering layer 215 is effectively prevented, and the light scattering layer 215 serves as an extraction element. Can work more effectively.

(Seventh modification)
As yet another example, as shown in FIG. 18, light scattering elements 215 b functioning as extraction elements may be dispersed in the light guide plate main body 65. In the light guide plate 211 illustrated in FIG. 18, the light L traveling in the light guide plate 211 is scattered by colliding with the light scattering element 215b, and can be emitted from the light guide plate 211. The light scattering element 215b can be configured similarly to the light scattering element 215b described above.

  Further, the light guide plate 211 may include a plurality of types of extraction elements. In the example shown in FIG. 18, the light guide plate 211 includes a light scattering element 215b, and further has a concave portion 211c.

  Further, the light scattering ability due to the concave portion 211c in each region of the light guide plate 211 is not constant but may be different. That is, the light scattering ability of the light guide plate 211 may be changed in each region along the plate surface. In other words, the light scattering ability in a certain area of the light guide plate 211 may be different from the light scattering ability in another area displaced from the area along the plate surface. By changing the light scattering ability in each area along the panel surface of the light guide plate 211, it is possible to adjust the amount of light emitted from each area.

The light scattering ability refers to the strength of the ability of the light guide plate 211 to scatter light passing therethrough. As an example, the degree of light scattering ability can be evaluated using a haze value [%] measured according to JIS-K7361-1, and a higher haze value [%] indicates higher light scattering ability. 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 211 is not constant in each region of the light guide plate 211 but has a different value.
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).

(Eighth Modification)
FIG. 19 is a diagram illustrating a space effect method according to an eighth modification of the present embodiment. In FIG. 6, at the start of use of the room, the color of light of the surface light source devices 21 to 24 is matched to the same white color as the color of light of the base lighting device 3, thereby avoiding discomfort due to the light of the surface light source devices 21 to 24. Examples have been described.

  It is also possible to further develop such cooperation between the surface light source devices 21 to 24 and the base lighting device 3 to further enhance the effect of the surface light source devices 21 to 24 by light.

  Specifically, in the example of FIG. 19, the system control unit 4 changes the illumination light of the base illumination device 3 according to at least one of the brightness and the color of the light emitted from the surface light source devices 21 to 24. At least one of brightness and color is changed.

  More specifically, as shown in FIG. 19, the system control unit 4 lowers the brightness of the white light of the base lighting device 3 at the start of the conference and during the conference. By reducing the brightness of the white light of the base illumination device 3, the light of the surface light source devices 21 to 24 can be avoided while avoiding a sense of incongruity that can be caused by positively increasing the brightness of the light of the surface light source devices 21 to 24. Influence on the atmosphere of the space S can be relatively increased. This makes it possible to further enhance the effect produced by the light from the surface light source devices 21 to 24.

(Ninth modification)
FIG. 20 is a cross-sectional view illustrating an example of the surface light source devices 21 to 24 included in the space effect system 1 according to a ninth modification of the present embodiment. Further, as another modified example, as shown in FIG. 20, by forming the light emitting surface 210 a to have a size facing the entire surface of the decorative sheet 6, the building material panel 20 does not have the board 5 and the decorative sheet 6 may have only the light-emitting region Z1 without the non-light-emitting region Z2. This makes it possible to increase the area of the light emitting surface 210a to further enhance the effect. Not limited to the example shown in FIG. 20, the surface light source devices 21 to 24 may be configured to face only a part of the wall.

(Tenth Modification)
The space effect system 1 of the present disclosure can be applied to uses other than the effect of the space S in the room.

  For example, as shown in FIG. 21, the space S is located on a desk D surrounded by a first partition PA1 on the front side and second and third partitions PA2, PA3 on the side, which are partition members. Is also good. A first surface light source device 201, which is an example of a first light emitting unit, is provided in a first partition PA1, which is an example of a first position, and a second surface light source device 201, which is an example of a second light emitting unit. The third surface light source devices 202 and 203 may be provided at the second and third partitions PA2 and PA3, which are examples of the second position. The surface light source devices 201 to 203 may be edge light type surface light source devices, but are not limited thereto. Then, the first surface light source device 201 changes at least one of the light brightness and the color after the second and third surface light source devices 202 and 203 change at least one of the light brightness and the color. May be.

  The user of the desk tends to easily see the front partition PA1 in the field of view. According to the example of FIG. 21, prior to the first surface light source device 201 provided on the front partition PA1 that easily enters the field of view, the second and second parts provided on the side partitions PA2 and PA3 that are difficult to enter the field of view. Third, the color and brightness of the light of the surface light source devices 202 and 203 can be changed. Thereby, it is possible to avoid the user's discomfort due to noticeable changes in the color and brightness of the light of the first surface light source device 201, and to effectively produce the atmosphere of the space.

  Further, for example, as shown in FIG. 22, the space S may be a space S adjacent to at least one of the first surface S1 and the second surface S2 of the lens L of the glasses G. The first light emitting portion 20A is provided on the first frame portion FR1 adjacent to one end in the height direction h of the lens L in the frame FR of the glasses G, and the second light emitting portion 20B is provided on the frame FR. Of these, it may be provided on the second frame portion FR2 adjacent to the outer end of the lens L in the width direction W. The light emitting units 20A and 20B may be configured by providing a plurality of light emitters such as LED chips along the frame units R1 and R2, for example. The first light emitting unit 20A may change at least one of the brightness and the color of the light after the second light emitting unit 20B changes at least one of the brightness and the color of the light.

  According to the example of FIG. 22, the eyeglasses G are provided earlier than the first light emitting unit 20A provided in the first frame unit FR1 that is easily visible to the user of the eyeglasses G, which is an example of the user of the space S. It is possible to change the color and brightness of the light of the second light emitting portion 20B provided in the second frame portion FR2 which is difficult to enter the field of view of the user. Thereby, it is possible to avoid the user's discomfort due to noticeable changes in the color and brightness of the light of the first light emitting unit 20A, and to effectively produce the atmosphere of the space.

(Eleventh modification)
FIG. 23 is a perspective view showing a space effect system 1 according to an eleventh modification of the present embodiment. FIG. 24 is a cross-sectional view illustrating an example of the surface light source devices 21 to 24 included in the space effect system 1 according to an eleventh modification of the present embodiment. The example in which the surface light source devices 21 to 24 are provided on the wall W has been described. On the other hand, as shown in FIGS. 23 and 24, the surface light source devices 21 to 24 may be provided on the ceiling CE. In the example of FIG. 24, the surface light source devices 21 to 24 are arranged on the ceiling CE with the light emitting surface 210a facing downward d12. The ends of the surface light source devices 21 to 24 on the light emitting body 220 side are held by the first holding frame 71, and the ends of the surface light source devices 21 to 24 on the side opposite to the light emitting body 220 are held by the second holding frame 72. Have been. The decorative sheet 6 is located below the light emitting surface 210 a along the light emitting surface 210 a, and one end is held on the first holding frame 71 and the other end is held on the second holding frame 72.

  From the viewpoint of ease of introduction, the ceiling CE is preferably a system ceiling. The system ceiling is a ceiling in which a finishing plate of the ceiling and equipment installed on the ceiling are integrally assembled. The conventional ceiling is a method in which a board is attached to the base and the equipment is set later, whereas the system ceiling is a board and equipment that are pre-assembled integrally with the runner or frame on the ceiling surface. This is a method of fitting and setting.

  In many cases, wiring for lighting is already provided on the ceiling CE, and thus the surface light source devices 21 to 24 can be installed at low cost by using existing wiring. In the case of a system ceiling, the surface light source devices 21 to 24 can be installed more easily.

(Twelfth Modification)
FIG. 25A is a cross-sectional view illustrating an example of the surface light source devices 21 to 24 included in the space effect system 1 according to a twelfth modification of the present embodiment. The example in which the surface light source devices 21 to 24 are provided on the wall W has been described. On the other hand, as shown in FIG. 25A, the surface light source devices 21 to 24 may be provided on a partition wall 200 that partitions between the space S and another space S2. The partition wall 200 includes the above-described surface light source devices 21 to 24, the storage box 73, the support plate 500, the first wall plate 501, and the second wall plate 502.

  The support plate 500 extends from the floor F to the ceiling CE or its vicinity, and has a front surface 500a on the space S side and a rear surface 500b on the other space S2 side adjacent to the space S. The surface light source devices 21 to 24 are supported in a predetermined range on the upper end side of the front surface 500a of the support plate 500.

  More specifically, the surface light source devices 21 to 24 are fixed together with the storage box 73 to the front surface 500a of the support plate 500 in a state of being stored in a box-shaped storage box 73 having an open front. The opening of the storage box 73 is closed by the decorative sheet 6 facing the light emitting surface 210a. The storage box 73 may be fixed to the front surface 500a of the support plate 500 by a fixing method such as screwing. In order to ensure handleability and rigidity, the support plate 500 may be made of, for example, light iron.

  A first wall plate 501 is arranged along the support plate 500 in a region of the front surface 500a of the support plate 500 extending from the lower end of the support plate 500 to the vicinity of the lower end portions of the surface light source devices 21 to 24. It is desirable that the appearance of the first wall plate 501 be the same as that of the decorative sheet 6 in order to secure the design. In addition, in order to ensure easy handling, the first wall plate 501 may be configured by, for example, attaching a decorative sheet 6 to the surface of a lightweight styrofoam material.

  On the back surface 500b of the support plate 500, a second wall plate 502 is arranged along the support plate 500. The second wall plate 502 is exposed to another space S2. The material of the second wall plate 502 may be the same as that of the first wall plate 501.

  FIG. 25A describes an example in which the surface light source devices 21 to 24 are stored in the storage box 73. On the other hand, as shown in FIG. 25B, instead of storing the surface light source devices 21 to 24 in the storage box 73, the surface light source devices A decorative sheet 6 similar to the decorative sheet 6 on the front side of the devices 21 to 24 may be arranged. In the example of FIG. 25B, the luminous body 220 and the upper ends of the decorative sheets 6 and 6 are held by the first holding frame 71 located at the upper ends of the surface light source devices 21 to 24. The lower end of the optical member 210 and the decorative sheets 6, 6 and the upper end of the wall plate 501 are held by the second holding frame 72 located at the lower end. For example, since the second holding frame 72 is detachable from the wall plate 501, the surface light source devices 21 to 24 are detachable from the wall plate 501. In the example of FIG. 25B, when the surface light source device 21 is removed from the wall plate 501, a part of the adjacent space S2, S can be visually recognized from one space S, S2 side.

  Further, in the example of FIG. 25A, only the surface light source devices 21 to 24 that emit light to the space S side are illustrated. However, as illustrated in FIG. 26, a surface light source that emits light to another space S2 is further illustrated. The devices 21 to 24 may be arranged on the back surface 500b of the support plate 500. In this case, the system controller 4 may independently control the emission of light by the surface light source devices 21 to 24 on the space S side and the emission of light by the surface light source devices 21 to 24 on the other space S2 side. .

  Unlike the wall W of the building itself, the partition wall 200 can be retrofitted to the building to partition the space in a desired layout. By providing the surface light source devices 21 to 24 on such a partition wall 200, the ease of introduction of the surface light source devices 21 to 24 can be improved.

(Thirteenth modification)
FIG. 27 is a cross-sectional view illustrating an example of the surface light source device included in the space effect system 1 according to the thirteenth modification of the present embodiment. FIG. 28 is an exploded perspective view illustrating an example of the surface light source devices 21 to 24 included in the space effect system 1 according to the thirteenth modification of the present embodiment.

  The example in which the surface light source devices 21 to 24 include the light guide plate 211 has been described. On the other hand, as shown in FIGS. 27 and 28, an air layer 216 may be disposed between the light diffusion sheet 212 and the reflection sheet 213 instead of disposing the light guide plate 211. The air layer 216 guides the light emitted from the light emitter 220 to the reflection sheet 213, and guides the light reflected by the reflection sheet 213 to the light diffusion sheet 212.

  Further, as shown in FIGS. 27 and 28, a brightness adjustment sheet 214 may be arranged on the reflection sheet 213 side of the light emitting body 220. The luminance adjustment sheet 214 is a sheet that adjusts the luminance at a certain position on the light emitting surface 210a to be lower than the luminance at another position d11 above the position based on the light emitted from the light emitting body 220. In the example of FIG. 28, the brightness adjustment sheet 214 has a light absorbing layer 214b formed by printing or applying black ink on a transparent base 214a such as a resin film. The area ratio of the light absorption layer 214b to the reflection sheet 213 increases from the upper side d11 to the lower side d12. Thus, the light reflectance can be continuously reduced by continuously increasing the light absorption from the upper side d11 to the lower side d12.

  In the example of FIG. 27, the light diffusion sheet 212 and the brightness adjustment sheet 214 are connected to the first frame 701 holding the light emitting body 220 via the adhesive 24 and the second frame 702 opposite to the first frame 701. Adhered to. Further, the decorative sheet 6 is arranged so as to straddle the frames 701 and 702 and reach the rear surface of the reflective sheet 213.

  According to the thirteenth modification, weight reduction can be achieved by disposing the air layer 216 instead of disposing the light guide plate 211. In addition, the luminance at a certain position on the light emitting surface 210a is adjusted to be lower than the luminance at another position d11 above the light emitting surface 210a by a luminance adjusting sheet 214 located closer to the reflection sheet 213 than the light emitting body 220. Luminance at the lower edge of the light-emitting surface 210a can be reduced while suppressing a reduction in design due to the adjustment sheet 214. Thereby, the atmosphere of the space S can be more effectively enhanced.

  Further, the space effect system 1 of the present disclosure can be applied to the effect of a space in a room of a moving body such as a car room or a cabin, in addition to a room in a building.

  Although specific examples and modifications to the embodiment have been described above, a plurality of examples may be appropriately combined and applied.

  While certain embodiments of the present disclosure have been described, these embodiments have been presented by way of example only, and are not intended to limit the scope of the disclosure. These embodiments can be implemented in other various forms, and various omissions, replacements, and changes can be made without departing from the spirit of the invention. These embodiments and modifications thereof are included in the scope and gist of the present disclosure, and are also included in the present disclosure described in the claims and equivalents thereof.

1 space effect system 21 first surface light source device 22 second surface light source device 23 third surface light source device 24 fourth surface light source device

Claims (18)

A first light emitting unit that is provided at a first position and emits first light into a space;
A second light emitting unit that is provided at a second position different from the first position and that emits second light into the space;
And a base illumination for illuminating the space ,
The first and second light emitting units match the colors of the first and second lights with the color of the irradiation light of the base illumination at the start of using the space, and after starting using the space, A space effect system, wherein the colors of the first and second lights are changed from the color of the irradiation light of the base illumination in an order according to a positional relationship between the first position and the second position. The space is located in a room,
The distance from the entrance to the room to the first position is longer than the distance from the entrance to the second position,
The first light emitting unit is a first light emitting device having a first light emitting surface,
The second light emitting unit is a second light emitting device having a second light emitting surface,
The first light emitting device changes at least one of brightness and color of the first light after the second light emitting device changes at least one of brightness and color of the second light. The space effect system according to claim 1 . The space effect system according to claim 2 , wherein the first light emitting device increases the brightness of the first light after the second light emitting device increases the brightness of the second light. . The first light emitting device, after the second light emitting device was darker color of the second light, space production system according to claim 2 or 3 darkening of the first light. The first light emitting device changes at least one of brightness and color of the first light emitted from a first light emitting region of the first light emitting surface, the distance from the entrance being short. later, the distance from the entrance of the first light emitting surface changing at least one brightness and color of the first light emitted from a long second light-emitting region, of claims 2 to 4 The space effect system according to any one of the preceding claims. The second light-emitting device changes at least one of brightness and color of the second light emitted from a third light-emitting region of the second light-emitting surface, the distance from the entrance being short. later, the distance from the entrance of the second light-emitting surface changing at least one brightness and color of the long fourth of said second light emitted from the light emitting region of the claims 2 to 5 The space effect system according to any one of the preceding claims. The first light-emitting device changes at least one of brightness and color of the first light gradually or stepwise from one end of the first light-emitting surface on the entrance side to a side opposite to the entrance. The space effect system according to claim 5 , wherein The second light emitting device changes at least one of brightness and color of the second light gradually or stepwise from one end of the second light emitting surface on the entrance side to the opposite side to the entrance. The space effect system according to claim 6 , wherein The space effect system according to any one of claims 2 to 8 , wherein the first and second light emitting devices are provided on different walls of the room. The space effect system according to any one of claims 2 to 8 , wherein the first and second light emitting devices are provided at different positions on the same wall of the room. Said first and second light exit portion further accordance utilization of the space, changing at least one of brightness and color of the first and second light, any one of claims 1 to 10 The space effect system according to one of the preceding claims. The said 1st and 2nd light-emitting part makes the brightness of the said 1st and 2nd light darker than the brightness of the irradiation light of the said base illumination, The Claim 1 any one of Claims 1-11. Space production system. The base illumination changes the brightness and the color of the irradiation light in accordance with at least one of the brightness and the color of the first and second lights emitted from the first and second light emission units. The space effect system according to any one of claims 1 to 12 , wherein at least one of the space effect systems is changed. A light-emitting device that has a light-emitting surface and emits light from the light-emitting surface to a space located in a room ;
And a base illumination for illuminating the space ,
The light emitting device adjusts the color of the light to the color of the irradiation light of the base illumination at the start of use of the space, and after the start of use of the space, the distance from the entrance of the room on the light emitting surface is short. After changing the color of the light emitted from the first light emitting region from the color of the irradiation light of the base illumination, the light emitted from the second light emitting region of the light emitting surface, the distance from the entrance being long, is changed. A space effect system that changes the color of the irradiation light from the color of the irradiation light . A first light emitting unit that is provided at a first position and emits first light to a space; and a second light emitting unit that is provided at a second position different from the first position and emits second light to the space. The second light emitting unit causes the colors of the first and second lights to match the color of the illumination light of the base illumination that illuminates the space at the time of starting use of the space . A space rendering method, wherein the colors of the first and second lights are changed from the color of the irradiation light of the base illumination in an order according to a positional relationship between the first position and the second position. The first light emitting unit is a first light emitting area of the light emitting surface in a light emitting device having a light emitting surface,
The space effect system according to claim 1, wherein the second light emitting unit is a second light emitting area arranged at a position different from the first light emitting area in the light emitting surface. The light emitting device is provided on the ceiling of the room, space direction system according to claim 2 to 8 or 16. The light emitting device is provided in a partition wall that partitions said space and another space, space production system according to claims 2 to 8 or 16.