JP6658970B2 - Building material panel, structure, and mounting method of building material panel - Google Patents

Description

Embodiments of the present disclosure relate to a building material panel, a structure, and a method of attaching a building material panel used for producing a spatial atmosphere.
This application claims priority based on Japanese Patent Application No. 2017-109557 filed on June 1, 2017, the contents of which are incorporated herein by reference.

  2. Description of the Related Art As a technique for producing an atmosphere of a space, a technique using indirect illumination illuminated with indirect light from a light source is widely known. For example, in JP 2011-210594A, an illumination system that can emphasize the spread of a space by irradiating light from a light source that is concealed and cannot be directly viewed toward a wall or a ceiling that partitions the space instead of the space. Is disclosed.

  However, in the lighting system disclosed in JP2011-210594A, since the unit accommodating the light source protrudes into the space, there is no sense of unity with the surroundings, and the presence of the light source does not exist even if the light source is not directly visually recognized. Easy to be conscious. For this reason, there has been a problem that the atmosphere of the space cannot be effectively produced.

  In order to solve such a problem, a plate-like member such as a board is arranged around the unit accommodating the light source to eliminate the sense of protrusion of the unit, and a decorative sheet is attached to the surface of the unit and the board to thereby improve the overall performance. A method to create a sense of unity and create the atmosphere of the space is being studied.

  However, in the above-described method, a single decorative sheet is stuck on a dissimilar material such as a unit and a board, and the unit and the board are changed over time due to a difference in thermal expansion coefficient of the material and a distortion of the entire wall surface. There is a problem that the position of the decorative sheet corresponding to the seam tends to be wrinkled, uneven, or cracked.

  One embodiment of the present disclosure has been made in view of the above points, and can effectively produce an atmosphere of a space, and can suppress a problem that occurs in a decorative sheet over time, a building material panel, a structure, and a building material. An object of the present invention is to provide a method for mounting a panel.

  A building material panel according to an embodiment of the present disclosure includes a surface light source device having a light emitting surface, and a first decorative sheet provided so as to cover at least a part or the whole of the light emitting surface.

  In the building material panel according to an embodiment of the present disclosure, it is preferable that the building material panel further includes a holding unit that holds the surface light source device so as to expose at least a part of the light emitting surface.

  The building material panel according to an embodiment of the present disclosure preferably further includes a plate-shaped member and a second decorative sheet provided so as to cover at least a part of the plate-shaped member.

  Further, in the building material panel according to the embodiment of the present disclosure, it is preferable that the first decorative sheet and the second decorative sheet are arranged along a uniaxial direction while being separated from each other.

  Further, in the building material panel according to an embodiment of the present disclosure, it is preferable that a decorative surface of the first decorative sheet and a decorative surface of the second decorative sheet are flush in the uniaxial direction.

  Furthermore, in the building material panel according to an embodiment of the present disclosure, it is preferable that the holding portion sandwiches the surface light source device from both sides along the uniaxial direction and has at least a pair of frame portions facing each other.

  Furthermore, in the building material panel according to an embodiment of the present disclosure, it is preferable that the holding portion further includes a back plate portion that connects the pair of frame portions and is disposed on a side opposite to the light emitting surface.

  Furthermore, in the building material panel according to an embodiment of the present disclosure, it is preferable that one or more holes are provided in the back plate portion of the holding portion.

  Furthermore, in the building material panel according to an embodiment of the present disclosure, it is preferable that the first decorative sheet is provided so as to cover an outer edge of the frame portion.

  Furthermore, in the building material panel according to an embodiment of the present disclosure, the amount of light emitted from a certain position of the light emitting surface is different from another certain position of the light emitting surface located on one side in the uniaxial direction from the position. Is preferably smaller than the amount of emitted light.

Furthermore, in the building material panel according to an embodiment of the present disclosure, the surface light source device includes:
A light-reflecting sheet disposed at a position facing the light-emitting surface, and adjusting the light-emitting surface from a certain position on the light-emitting surface so as to be smaller than the light-emitting amount from another certain position on the light-emitting surface. A sheet, located between the light emitting surface and the light reflecting sheet, on one side in the uniaxial direction with respect to the light emitting surface and the light reflecting sheet, from one side in the uniaxial direction to the other side. And a light source that emits light. The adjustment sheet is preferably positioned closer to the light emitting surface than the light source.

  Further, in the building material panel according to an embodiment of the present disclosure, the surface light source device may include a light reflection sheet disposed at a position facing the light emitting surface, and a light emission amount from another certain position of the light emitting surface. An adjustment sheet for adjusting the amount of light emitted from a certain position of the light emitting surface, so that the light emitting surface and the light reflecting sheet are in the uniaxial direction between the light emitting surface and the light reflecting sheet. A light source that emits light from one side to the other side in the uniaxial direction, the adjustment sheet being located on the light reflection sheet side of the light source. Is preferred.

  A structure according to an embodiment of the present disclosure is a structure including at least one of the above-described building material panels, and includes a light-emitting region including the surface light source device and the first decorative sheet. .

  A structure according to an embodiment of the present disclosure is a structure including at least one of the above-described building material panels, and includes a light emitting area including the surface light source device and the first decorative sheet, a plate-shaped member, and a second decorative sheet. And a non-light-emitting region including a sheet, wherein the light-emitting region and the non-light-emitting region are arranged along the uniaxial direction.

  In a structure according to an embodiment of the present disclosure, the building material panel includes a plurality of the building material panels, and the light emitting region includes a plurality of the surface light source devices and the first decorative sheet arranged in a direction orthogonal to the uniaxial direction. It is preferable that it is formed by providing.

  A mounting method of a building material panel according to an embodiment of the present disclosure is the above-described method of mounting a building material panel, and includes a step of mounting the surface light source device and the first decorative sheet.

  It is preferable that the method of attaching a building material panel according to an embodiment of the present disclosure further includes a step of attaching the plate-shaped member and the second decorative sheet.

  Further, a structure according to an embodiment of the present disclosure is a light emitting unit having a surface light source device having a light emitting surface, a first decorative sheet provided to cover at least a part of the light emitting surface, and a plate. And a second decorative sheet provided so as to cover at least a part of the plate-shaped member. The light-emitting portion and the non-light-emitting portion extend along a uniaxial direction. And a third decorative sheet extending along the uniaxial direction is provided between the light emitting unit and the non-light emitting unit.

  Further, a structure according to an embodiment of the present disclosure is a light emitting unit having a surface light source device having a light emitting surface, a first decorative sheet provided to cover at least a part of the light emitting surface, and a plate. A non-light-emitting portion, comprising a shape member and a second decorative sheet provided so as to cover at least a part of the plate-shaped member, and a non-light-emitting portion disposed apart from the light-emitting portion along a uniaxial direction; A light-emitting portion support member having at least a base portion disposed between the non-light-emitting portion and supporting a side end portion of the light-emitting portion, wherein the base portion of the light-emitting portion support member emits light from the light-emitting surface. It is characterized by being recessed on the opposite side to the surface.

  In the structure according to an embodiment of the present disclosure, it is preferable that a third decorative sheet along the uniaxial direction is provided between the base of the light emitting unit support member and the non-light emitting unit.

  In the structure according to an embodiment of the present disclosure, it is preferable that the structure further includes a holding unit that holds the surface light source device so as to expose at least a part of the light emitting surface and that is attached to a wall or a ceiling. .

  A structure according to an embodiment of the present disclosure is a base lighting, a light emitting unit that emits light at a lower luminance than the base lighting, and covers a surface light source device having a light emitting surface and at least a part of the light emitting surface. A light emitting unit having a first decorative sheet provided as described above, a plate member, and a non-light emitting unit having a second decorative sheet provided so as to cover at least a part of the plate member. , And the light emitting unit and the non-light emitting unit are arranged side by side in a uniaxial direction.

  Further, it is preferable that the structure according to an embodiment of the present disclosure include a wall and a building material panel according to the present disclosure attached to the wall.

  Further, in the structure according to an embodiment of the present disclosure, it is preferable that the structure further include a wall to which at least the surface light source device is attached.

  ADVANTAGE OF THE INVENTION According to this indication, while being able to produce the atmosphere of space effectively, the trouble which generate | occur | produces in a decorative sheet with time can be suppressed.

It is a front view showing the building material panel of a 1st embodiment. It is sectional drawing which follows the XX line of FIG. It is an exploded perspective view showing a light emitting part. It is an exploded perspective view showing a modification of a light emitting part. It is an exploded perspective view showing a modification of a light emitting part. It is sectional drawing which shows the building material panel of 2nd Embodiment. It is sectional drawing which shows the building material panel of 3rd Embodiment. It is a figure showing the structure of a 1st embodiment. It is a figure showing the structure of a 2nd embodiment. FIG. 10 is a sectional view taken along the line YY in FIG. 9. FIG. 10 is a sectional view taken along the line YY in FIG. 9. It is a figure showing the structure of a 3rd embodiment. FIG. 13 is a cross-sectional view along the line ZZ in FIG. 11. It is sectional drawing which shows the modification of a light emitting area. It is sectional drawing which shows the modification of a light emitting area. It is sectional drawing which shows the modification of a light emitting area. It is sectional drawing which shows the modification of a light emitting area. It is sectional drawing which shows the modification of a light emitting area. It is sectional drawing which shows the modification of a light emitting area. It is sectional drawing which shows the modification of a light emitting area. It is sectional drawing which shows the structure of 4th Embodiment. It is sectional drawing which shows the structure of 5th Embodiment. It is sectional drawing which shows the structure of 6th Embodiment. It is a disassembled perspective view which shows the surface light source device of the structure of 7th Embodiment. It is a disassembled perspective view which shows the surface light source device of the structure of 8th Embodiment.

  Hereinafter, embodiments of the present disclosure will be described with reference to the drawings. In the description of the drawings, the same elements will be denoted by the same reference symbols, without redundant description. Further, in the drawings attached to the present specification, for the sake of convenience of illustration and understanding, the scale and the dimensional ratio in the vertical and horizontal directions are appropriately changed and exaggerated.

  Further, as used herein, to specify the shape and geometric conditions and the degree thereof, for example, terms such as "parallel", "orthogonal", "same" 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” and “plate” are based on only the difference in names and are not distinguished from each other. For example, “plate” is a concept that also includes members that can be called sheets. Therefore, the "light guide plate" is not distinguished only by the difference in the name of "light guide sheet".

<First Embodiment of Building Material Panel>
FIG. 1 is a front view showing a building material panel according to the first embodiment, and FIG. 2 is a sectional view taken along line XX of FIG. The building material panel 1 according to the present embodiment relates to lighting for space effects, which is different from normal base lighting, and is attached to the wall W or / and the ceiling C of the room R afterwards, and is user-friendly together with the base lighting. It is a panel to create a light space. When used as lighting for space effects, for example, the brightness of the building material panel 1 of the present embodiment may be set lower than the brightness of the base lighting. For example, the luminance of the light emitting unit 2 may be set lower than the luminance of the base illumination. According to such a configuration, it is difficult for the user to feel uncomfortable when the light emitting unit 2 emits light.

  For example, in a state where the building material panel 1 is attached to the wall W as shown in FIGS. 1 and 2, the building material panel 1 is a flat plate arranged near the ceiling C along the uniaxial direction (here, the vertical direction or the vertical direction) d1. The light-emitting device includes a light-emitting unit (light-emitting panel) 2 and a flat non-light-emitting unit 3 (non-light-emitting panel) disposed below the light-emitting unit 2. Note that the wall W here includes a partition or the like that partitions a space. Although the ratio of the light-emitting portion 2 and the non-light-emitting portion 3 in the building material panel 1 is not particularly limited, the light-emitting portion 2 may be set to have a smaller area than the non-light-emitting portion 3 as shown in FIGS. Good. According to such a configuration, it is difficult for the user to feel uncomfortable when the light emitting unit 2 emits light. Preferably, the ratio of the area of the light emitting unit 2 to the area of the non-light emitting unit may be 1: 4 to 1:15, and more preferably, 1: 8 to 1:12.

  FIG. 3 is an exploded perspective view showing the light emitting unit. The light emitting unit 2 mainly includes a surface light source device 21 having a light emitting surface 21a, a holding unit 22 that exposes the light emitting surface 21a and accommodates and holds the surface light source device 21, and is provided to cover the light emitting surface 21a. And a first decorative sheet 23 provided. The thickness of the light emitting unit 2 is not particularly limited, but may be, for example, 20 mm or less, preferably 10 mm or less, and more preferably 6 mm or less. According to such a configuration, it is possible to prevent the sense of unity in the space from being impaired.

  The surface light source device 21 is configured as an edge light type surface light source device, and includes a long light source 211 and a light guide plate 212 that changes the direction of light emitted by the light source 211 and emits the light from the light emitting surface 21a. As the light source 211, a light-emitting diode (LED), a cold cathode tube, an incandescent lamp, a laser oscillation device, or the like can be used. However, from the viewpoint of easily miniaturizing the entire device, a point-like LED is used in the present embodiment. Used. Therefore, the light source 211 of the present embodiment includes a long light source substrate and a plurality of point-like LEDs mounted on the light source substrate at regular intervals. Hereinafter, an example in which the above-described edge light type surface light source device is used as the surface light source device 21 will be described. However, the present invention is not limited thereto. For example, a surface light source device using a direct-type LED and an EL (Electro Luminescence) sheet are used. You may comprise using a surface light source device etc. When a plurality of light emitting units 2 are present, the surface light source device 21 may be configured by a combination of any of the above and an edge light type surface light source device.

  The light guide plate 212 is a rectangular thin plate, and has a pair of main surfaces 212a and 212b facing each other and four side surfaces defined between the pair of main surfaces 212a and 212b. The light guide plate 212 is disposed below the light source 211 so that light from the light source 211 is incident on the side surface, and is formed integrally with the light source 211. Note that the light guide plate 212 may be formed separately from the light source 211.

  Further, of the pair of main surfaces 212a and 212b of the light guide plate 212, the light reflecting sheet 221 (see FIGS. 19 and 20) is provided on the main surface 212b facing the wall W, and the light diffusion sheet 221 is provided on the opposite main surface 212a. Sheets 223 (see FIGS. 19 and 20) are provided. The light diffusion sheet 223 forms the light emitting surface 21a of the surface light source device 21. The structures, materials, and the like of the light guide plate 212, the light reflection sheet 221 and the light diffusion sheet 223 are already well known, and a detailed description thereof will be omitted.

  The holding part 22 has a flat box shape having an opening part 22a, and a pair of upper and lower frame parts (upper frame part 22b, lower part) holding the surface light source device 21 from both sides along the uniaxial direction d1 (that is, up and down direction). Side frame portion 22c) and a pair of left and right frame portions (left frame portion 22d, right frame portion 22e) sandwiching the surface light source device 21 from both sides along a left-right direction (that is, a horizontal direction) orthogonal to the uniaxial direction d1. Have. The upper frame portion 22b and the lower frame portion 22c, and the left frame portion 22d and the right frame portion 22e face each other in parallel. These frame portions 22b, 22c, 22d, and 22e are connected so as to form a rectangular frame.

  A back plate portion 22f that connects the frame portions 22b, 22c, 22d, and 22e is arranged on the opposite side of the opening 22a. At the center position of the back plate portion 22f, one through hole 22g for taking out a wiring cable or the like (not shown) of the surface light source device 21 to the outside of the holding portion 22 is provided. Further, the through hole 22g may be used to release heat generated by the surface light source device 21 other than through the wiring. In that case, it is more preferable that there is a gap between the light guide plate 212 and the back plate portion 22f because air convection flows over a large area. Further, a plurality of through holes 22g may be provided, the through holes 22g may be provided at a higher density nearer the light source 211, or a structure such as a cooling fin may be provided to function. Further, the through holes may be provided not only in the back plate portion 22f but also in the frame portion. The holding section 22 may be formed of a metal material such as aluminum, or may be formed of a resin material. The light guide plate 212 may be held by the holding portion 22 so as to be in close contact with the back plate portion 22f of the holding portion 22, or is held so as to have a gap between the light guide plate 212 and the back plate portion 22f. May be.

  The first decorative sheet 23 is formed to be larger than the area of the side surface of the light source 211 and the area of the light emitting surface 21a of the surface light source device 21, and the frame portion 22b is made of an adhesive or the like so as to confine the surface light source device 21 inside the holding portion 22. , 22c, 22d, and 22e. The decorative face 23a of the first decorative sheet 23 faces the inside of the room. Here, the decorative surface refers to a surface layer that achieves a design effect. As the first decorative sheet 23, a paper-based decorative sheet, a resin-based decorative sheet (for example, a wood-based decorative sheet, a mirror-finished decorative sheet), or the like is used. Further, the first decorative sheet 23 may have light transmittance or may not have light transmittance.

  On the other hand, the non-light-emitting portion 3 includes a thin board (plate-like member) 31 and a second decorative sheet 32 attached to the board 31. The board 31 is disposed below the light emitting unit 2 so as to have a gap between the board 31 and the light emitting unit 2, and extends to a position slightly away from the floor F (that is, a position higher than the floor F). The board 31 may be a resin plate, a wooden plate, a plate made of a cement-based material such as concrete or mortar, a gypsum board, an inorganic non-metal plate made of calcium silicate or the like, or a metal plate made of aluminum or the like. . Further, the board 31 preferably has fire resistance and fire resistance. The thickness of the non-light emitting portion 3 is not particularly limited, but may be, for example, 25 mm or less, preferably 20 mm or less, more preferably 10 mm or less, and still more preferably 6 mm or less. It may be. According to such a configuration, it is possible to prevent the sense of unity in the space from being impaired.

  The second decorative sheet 32 is attached to the board 31 with an adhesive or the like so as to be located on the same side as the first decorative sheet 23. The decorative surface 32a faces the inside of the room. The second decorative sheet 32 may have the same material, color, and pattern as the first decorative sheet 23, or may have a different pattern. However, the second decorative sheet 32 is the same in consideration of a sense of unity as a whole. Is preferred.

  As shown in FIGS. 1 and 2, in a state where the light-emitting unit 2 and the non-light-emitting unit 3 are attached to the wall W, the first decorative sheet 23 and the second decorative sheet 32 are separated from each other (for example, The first decorative sheet 23 and the second decorative sheet 32 are arranged along the uniaxial direction d1 so that there is a gap between them. In addition, if the gap between the first decorative sheet 23 and the second decorative sheet 32 is large, the unification feeling of the light-emitting unit 2 and the non-light-emitting unit 3 may be spoiled. good. For example, the gap between the first decorative sheet 23 and the second decorative sheet 32 may be within 30 mm, preferably within 20 mm, more preferably within 10 mm, and even more preferably 5 mm. It may be as follows. Further, it is preferable that the decorative surface 23a of the first decorative sheet 23 and the decorative surface 32a of the second decorative sheet 32 be flush in the uniaxial direction d1. The fact that the decorative surface 23a of the first decorative sheet 23 and the decorative surface 32a of the second decorative sheet 32 are flush means that the user does not recognize that only one decorative surface is protruding. For example, the step between the decorative surface 23a of the first decorative sheet 23 and the decorative surface 32a of the second decorative sheet 32 may be within 3 mm, preferably within 2 mm, and more preferably within 1 mm. You may.

  The building material panel 1 configured as described above includes the surface light source device 21, the holding unit 22, and the light emitting unit 2 having the first decorative sheet 23, and the surface light source device 21 is concealed by the first decorative sheet 23. Therefore, the presence as a light source can be reduced, and the atmosphere of the space can be effectively produced. In addition, by appropriately selecting the color, pattern, and the like of the first decorative sheet 23 and the second decorative sheet 32, the building material panel 1 can be melted into the surroundings without a sense of incongruity. It is possible to bring.

  Further, a luminance distribution in the light emitting surface 21a of the surface light source device 21 may be set here. For example, the amount of light emitted from a certain position of the light emitting surface 21a may be smaller than the amount of light emitted from another certain position of the light emitting surface 21a located on the first side s1 in the uniaxial direction d1 from the position. Good. Further, the amount of light emitted from a certain position on the light emitting surface 21a is set to be equal to or less than the amount of light emitted from any other position on the light emitting surface 21a located on the first side s1 in the uniaxial direction d1 from the position. You may. In this example, light emitted from the light emitting surface 21a is bright on the ceiling C side and gradually goes from the ceiling C side to the floor F side (that is, from the first side s1 in the uniaxial direction d1 to the second side s2). It can be set to get darker. By adding the light and dark gradation in this manner, the effect of diminishing the presence as a light source and the effect of producing a space atmosphere can be further enhanced. Alternatively, the design may be given by other luminance distribution. For example, a geometric pattern, a photographed image, or a character pattern may be used. Further, it may be a binary distribution or a distribution with gradation. The surface light source device 21 including the light guide plate 212 can be adjusted so that the amount of emitted light on the side away from the light source 211 decreases. In particular, in the surface light source device 21 having the adjustment sheet 222 described later, the distribution of the amount of light emitted from each position of the light emitting surface 21a along the uniaxial direction d1 can be adjusted with a high degree of freedom.

  Further, by appropriately selecting the light source 211 used in the surface light source device 21, it is possible to impart a tint to the emission color of the surface light source device 21. , The emission color can be changed. For example, the emission color of the surface light source device 21 may be changed in accordance with the content to be discussed in the room R. Further, the emission color and / or the emission amount may be controlled. The control of the light emission amount can be realized by adjusting the type and quantity of the light source 211 used for light emission. By doing so, it is possible to provide comfort and the like by appealing to the sensitivity of the user in the space, beyond the effect of enhancing the atmosphere of the space itself.

  In addition, the light emitting unit 2 and the non-light emitting unit 3 are arranged along the uniaxial direction d1 in a state where the first decorative sheet 23 and the second decorative sheet 32 are separated from each other. That is, the first decorative sheet 23 and the second decorative sheet 32 are arranged separately. For this reason, it is possible to suppress the occurrence of a temporal defect such as wrinkling, unevenness, or cracking of the decorative sheet at the seam between members made of different materials as in the related art. Furthermore, since the decorative surface 23a of the first decorative sheet 23 and the decorative surface 32a of the second decorative sheet 32 are flush in the uniaxial direction d1, it is easy to achieve a sense of unity between the light emitting unit 2 and the non-light emitting unit 3. , The atmosphere of the space can be produced more effectively.

[How to attach building material panel]
Hereinafter, a method of attaching the building material panel 1 will be described. The mounting method of the building material panel 1 of the present embodiment includes a light emitting unit attaching step of attaching the light emitting unit 2 to the building and a non-light emitting unit attaching step of attaching the non-light emitting unit 3 to the building. The light emitting unit attaching step and the non-light emitting unit attaching step do not have a chronological order, and the non-light emitting unit attaching step may be performed after the light emitting unit attaching step, and vice versa. May be performed simultaneously. Here, an example in which the non-light emitting portion attaching step is performed after the light emitting portion attaching step will be described.

  In the light emitting unit attaching step, first, the holding unit 22 is fixed to the wall W. Specifically, for example, a screw hole into which a screw is inserted is provided in the back plate portion 22f of the holding portion 22, and the holding portion 22 is fixed to the wall W by screwing. Next, the surface light source device 21 is installed inside the holding unit 22 so that the light emitting surface 21a is exposed from the opening 22a of the holding unit 22. Subsequently, with the decorative surface 23a of the first decorative sheet 23 facing the interior of the room, the first decorative sheet 23 is attached to the frame of the holding unit 22 so as to close the opening 22a.

  Alternatively, in the light emitting unit attaching step, first, the surface light source device 21, the holding unit 22, and the first decorative sheet 23 are first assembled to produce the light emitting unit 2. Subsequently, after a rail for attaching the light emitting unit 2 to the wall W is fixed with screws, the light emitting unit 2 is attached to the wall W by hooking the light emitting unit 2 on the rail with metal fittings or the like.

  On the other hand, in the non-light emitting portion attaching process following the light emitting attaching process, the board 31 is fixed to the wall W by, for example, a method such as bonding or screwing, and then the second decorative sheet 32 is attached to the board 31. Alternatively, the second decorative sheet 32 is first attached to the board 31 to form the non-light-emitting portion 3, and then the non-light-emitting portion 3 is attached to the wall W with an adhesive.

  According to such a method, the building material panel 1 can be easily attached to a building.

  In the above description, the holding portion 22 of the light emitting section 2 is box-shaped, but various modifications other than the box-shaped may be considered.

  For example, in the modification shown in FIG. 4, the holding section 22A of the light emitting section 2A is formed in a rail shape having a U-shaped cross section. That is, the holding portion 22A includes a pair of upper and lower frame portions (an upper frame portion 22b and a lower frame portion 22c) that sandwich the surface light source device 21 from both sides along the uniaxial direction d1, and a back plate that connects these frame portions. 22f. A single through hole 22g for taking out a wiring cable (not shown) of the surface light source device 21 is provided at a central position of the back plate portion 22f. In this case, since the surface light source device 21 can be installed on the holding portion 22A by insertion from the horizontal direction, the assembling work of the light emitting portion 2A can be easily performed.

  In the modification shown in FIG. 5, the holding portion 24 of the light emitting portion 2B is formed by two members (upper frame portion 24a and lower frame portion 24b) formed separately. The upper frame portion 24a and the lower frame portion 24b each have an L-shaped cross section, and are arranged facing each other so as to sandwich the surface light source device 21 from both upper and lower sides.

  In addition, as a method of installing the surface light source device on the holding portion, in addition to the above-described method of sandwiching from both sides along the uniaxial direction d1, a structure such as a Kendon type or a pivot type widely used in the field of architecture or the like is used. May be.

<Second embodiment of building material panel>
FIG. 6 is a cross-sectional view illustrating a building material panel according to the second embodiment. The construction material panel 1A of the present embodiment differs from the first embodiment in the arrangement range of the first decorative sheet 23A. The other configuration is the same as that of the first embodiment, and a duplicate description will be omitted.

  Specifically, the first decorative sheet 23A is formed to have the same size as the side surface of the light source 211 and the area of the light emitting surface 21a of the surface light source device 21, and is directly attached to the side surface of the light source 211 and the light emitting surface 21a with an adhesive or the like. It is attached. In this case, it is preferable that the colors, patterns, and the like of the frame portions 22b, 22c, 22d, and 22e of the holding portion 22 are inconspicuous. By doing so, even when the frame portions 22b, 22c, 22d, and 22e are exposed from the first decorative sheet 23A, a sense of unity with the first decorative sheet 23A and the second decorative sheet 32 is maintained. Can be.

  According to the construction material panel 1A of the present embodiment, in addition to obtaining the same operational effects as those of the above-described first embodiment, the size is smaller than that of the first decorative sheet 23 of the first embodiment, so that material can be saved. It has the effect of aiming.

<Third Embodiment of Building Material Panel>
FIG. 7 is a cross-sectional view illustrating a building material panel according to the third embodiment. The construction material panel 1B of the present embodiment is different from the first embodiment in the arrangement range of the first decorative sheet 23B. The other configuration is the same as that of the first embodiment, and a duplicate description will be omitted.

  Specifically, the lower end of the first decorative sheet 23 </ b> B is further bent in the depth direction (in FIG. 7, the left and right direction of the paper surface), and extends to the outer edge of the lower frame portion 22 c of the holding portion 22. . That is, the first decorative sheet 23B is arranged so as to cover not only the side surface and the light emitting surface 21a of the light source 211 of the surface light source device 21 but also the outer edge of the lower frame portion 22c. According to the building material panel 1B of this embodiment, the same operation and effect as those of the above-described first embodiment can be obtained. Further, since the lower end of the first decorative sheet 23B is disposed so as to cover the outer edge of the lower frame part 22c of the holding part 22, even if the frame part of the holding part 22 is conspicuous, the first decorative sheet 23B Since it is hidden by 23B, the sense of unity with the first decorative sheet 23A and the second decorative sheet 32 is not spoiled. Although FIG. 7 shows an example in which the light emitting unit 2 is arranged on the upper side and the non-light emitting unit 3 is arranged on the lower side, the light emitting unit 2 may be arranged on the lower side and the non-light emitting unit 3 may be arranged on the upper side. In this case, the first decorative sheet 23B extends to the side surface of the upper frame portion 22b of the holding portion 22.

  In this case, the left and right end portions of the first decorative sheet 23B also extend to the outer edges of the left frame portion 22d and the right frame portion 22e of the holding portion 22, and are arranged so as to cover these outer edges. Is also good.

<First Embodiment of Structure>
FIG. 8 is a diagram illustrating a structure according to the first embodiment. The structure 10 of the present embodiment has, for example, the building material panel 1 attached to a wall W of a room R, and includes a light emitting area 12 and a non-light emitting area 13 arranged along the uniaxial direction d1. On the ceiling C of the room R, a lighting device (that is, base lighting) 11 for irradiating the room R with light is arranged. The lighting fixture 11 may be embedded in the ceiling C or may be suspended from the ceiling C. The building material panel 1 includes a light-emitting portion (light-emitting panel) 2 arranged near the ceiling C along the uniaxial direction d1 and two non-light-emitting portions (non-light-emitting panels) 3 arranged below the light-emitting portion 2. Have. The light emitting section 2 forms a light emitting area 12 of the structure 10, and the two non-light emitting sections 3 (the first non-light emitting section 3 a and the second non-light emitting section 3 b) form a non-light emitting area 13. When the light emitting unit 2 is used as lighting for space effects, for example, the brightness of the light emitting unit 2 of the present embodiment may be set lower than the brightness of the base lighting. For example, the luminance of the light emitting unit 2 may be set lower than the luminance of the base illumination. According to such a configuration, it is difficult for the user to feel uncomfortable when the light emitting unit 2 emits light.

  The light emitting section 2 and the first non-light emitting section 3a are arranged along the uniaxial direction d1 in a state where the first decorative sheet 23 and the second decorative sheet 32 are separated from each other. The second non-light-emitting portion 3b is disposed below the first non-light-emitting portion 3a so as to have a gap between the second non-light-emitting portion 3a. The size of the gap between the light emitting unit 2 and the first non-light emitting unit 3a (that is, the distance between the light emitting unit 2 and the first non-light emitting unit 3a) is determined by the gap between the first non-light emitting unit 3a and the second non-light emitting unit 3b. May be the same as, or different from. It is preferable that these gaps have the same size in order to facilitate the unification of the whole.

  The structure 10 configured as described above includes the light emitting region 12 formed by the light emitting unit 2 and the non-light emitting region 13 formed by the non-light emitting unit 3, and the light emitting region 12 and the non-light emitting region 13 are uniaxial. Since they are arranged along the direction d1, the same operation and effect as the above-described building material panel 1 can be obtained.

<Second Embodiment of Structure>
FIG. 9 is a diagram illustrating a structure according to the second embodiment, and FIGS. 10A and 10B are cross-sectional views taken along line YY of FIG. 9. The structure 10 </ b> A of the present embodiment is different from the first embodiment in that the structure 10 </ b> A has a plurality of building material panels 1 and a light emitting region 12 is formed by a plurality of light emitting units 2. The other configuration is the same as that of the first embodiment, and a duplicate description will be omitted.

  Specifically, the light emitting region 12 is formed by arranging three light emitting units 2 in a horizontal direction (a direction orthogonal to the uniaxial direction d1), for example, as shown in FIG. 10A. These light emitting units 2 are arranged with the adjacent holding units 22 abutting each other so that no gap is generated between them. Here, as shown in FIG. 10B, the light-emitting region 12 includes, in one common holding unit 22, three aggregates each including the surface light source device 21 and the first decorative sheet 23 in the horizontal direction. It may be formed by juxtaposition.

<Third Embodiment of Structure>
FIG. 11 is a diagram showing a structure according to the third embodiment, and FIG. 12 is a cross-sectional view taken along the line ZZ of FIG. The structure 10B of the present embodiment is different from the first embodiment in that the structure 10B has a plurality of building material panels 1 and a light emitting region 12 is formed by a plurality of light emitting units 2. The other configuration is the same as that of the first embodiment, and a duplicate description will be omitted.

  Specifically, the light emitting region 12 is formed by, for example, arranging three light emitting units 2 in a horizontal direction. These light emitting units 2 are arranged at intervals so as to have a certain gap.

  In addition, as for the configuration of the light emitting region 12, various modifications may be considered in addition to the above-described contents. For example, in the modified example shown in FIG. 13A, the light emitting region 12 is formed such that a plurality of (here, three) first decorative sheets 23 having the same size are provided in the common holding unit 22 and the surface light source device 21 with a predetermined gap. It is formed by sticking to have. In this case, light is emitted from the gap between the adjacent first decorative sheets 23, thereby producing an effect of creating a different atmosphere.

  In the modification shown in FIG. 13B, the light-emitting region 12 is formed by arranging three light-emitting portions 2 of the building material panel of the above-described second embodiment. These light emitting units 2 are arranged with the adjacent holding units 22 abutting each other so that no gap is generated between them. In this case, the adjacent first decorative sheets 23A have a gap between them due to the left frame portion 22d and the right frame portion 22e of the butted adjacent holding portions 22.

  In the modification shown in FIG. 14A, in the light emitting region 12, a plurality of aggregates including the surface light source device 21 and the first decorative sheet 23 are arranged in a horizontal direction in one common holding unit 22. It is formed by. One end of the adjacent light guide plates 212A is processed into a stepped shape, and the other end is processed into a corresponding stepped shape in the opposite direction. By aligning these ends, it is possible to prevent misalignment between adjacent light guide plates 212A.

  In the modification shown in FIG. 14B, in the light emitting region 12, a plurality of aggregates including the surface light source device 21 and the first decorative sheet 23 are arranged in a horizontal direction in one common holding unit 22. It is formed by. One end of the adjacent light guide plates 212B is formed in a tapered shape, and the other end is formed in a corresponding reverse tapered shape. By aligning these ends, it is possible to prevent misalignment between adjacent light guide plates 212B.

  In the modification shown in FIG. 14C, in the light emitting region 12, a plurality of aggregates including the surface light source device 21 and the first decorative sheet 23 are arranged in a horizontal direction in one common holding unit 22. It is formed by. One end of the adjacent light guide plates 212C is processed into a convex curved surface, and the other end is processed into a corresponding concave curved surface. By aligning these ends, it is possible to prevent misalignment between adjacent light guide plates 212C.

  In the modification shown in FIG. 15A, in the light emitting region 12, a plurality of aggregates including the surface light source device 21 and the first decorative sheet 23 are arranged in a horizontal direction in one common holding unit 22. It is formed by. One end of the adjacent light guide plates 212D is processed into a convex shape, and the other end is processed into a concave shape to be fitted thereto. By fitting these ends, it is possible to prevent positional deviation between the adjacent light guide plates 212D.

  Further, in the modification shown in FIG. 15B, the light emitting region 12 is formed by stacking a plurality of light guide plates 212E in a staggered manner (here, two stages) in one common holding unit 22. Have been. In each stage, the adjacent light guide plates 212E are arranged side by side with a space therebetween so as to have a gap therebetween. The first decorative sheets 23 are attached to the outermost light guide plate 212E (that is, the inside of the room R).

<Fourth Embodiment of Structure>
FIG. 16 is a cross-sectional view illustrating a structure according to the fourth embodiment. The structure 10C according to the present embodiment is attached, for example, to the wall W of the room R in a retrofit manner, and creates a user-friendly light space together with normal base lighting. The structure 10C includes a flat light emitting unit 2 arranged near the ceiling C along the uniaxial direction d1 and a flat light emitting unit 2 arranged at a predetermined distance from the light emitting unit 2 and below the light emitting unit 2. And a non-light emitting section 3.

  The light emitting unit 2 includes the surface light source device 21, the holding unit 22, and the first decorative sheet 23B as described in the first and third embodiments of the building material panel described above. The first decorative sheet 23B is disposed so as to cover not only the side surface and the light emitting surface 21a of the light source 211 of the surface light source device 21 but also the outer edge of the lower frame portion 22c. On the other hand, the non-light-emitting portion 3 includes a thin board 31 and a second decorative sheet 32A attached to the board 31. The second decorative sheet 32A is attached to the board 31 with an adhesive or the like so as to be located on the same side as the first decorative sheet 23. The second decorative sheet 32A is disposed so as to cover not only the main surface of the board 31 but also the upper end surface of the board 31.

  As shown in FIG. 16, a third decorative sheet 4 is further provided between the light emitting unit 2 and the non-light emitting unit 3 along the uniaxial direction d1. The third decorative sheet 4 is disposed in a gap between the lower end of the light emitting unit 2 (that is, the lower end of the first decorative sheet 23B) and the upper end of the non-light emitting unit 3 (that is, the upper end of the second decorative sheet 32A). Is attached to the wall W with an adhesive or the like. The third decorative sheet 4 may be of the same material, color and pattern as the first decorative sheet 23B and the second decorative sheet 32A, or may be different. When the colors and patterns are different, for example, one picture is divided into three by the first decorative sheet 23B, the third decorative sheet 4, and the second decorative sheet 32A, and one of these is combined by combining these. It is preferably formed so that the picture can be completed.

  Here, assuming that the distance between the light emitting unit 2 and the non-light emitting unit 3 in the uniaxial direction d1 is t, and the distance from the decorative surface 23a of the first decorative sheet 23B to the wall W is d, t and d are 0.1. It is preferable that the relationship of 1 ≦ t / d ≦ 5 is satisfied. The range of t / d is set based on the following contents. That is, when t / d is smaller than 0.1, light from the base illumination cannot enter between the light emitting unit 2 and the non-light emitting unit 3, so that the gap between the light emitting unit 2 and the non-light emitting unit 3 is reduced. It looks dark, and the sense of unity of the entire structure 10C is impaired. On the other hand, when t / d is greater than 5, the light emitting unit 2 and the non-light emitting unit 3 are too far apart, and the overall sense of unity is impaired.

  According to the structure 10 </ b> C of the present embodiment, in addition to the same operation and effects as those of the above-described first embodiment of the building material panel, the third makeup along the uniaxial direction d <b> 1 between the light emitting unit 2 and the non-light emitting unit 3 is obtained. Since the sheet 4 is further provided, the sense of unity of the entire structure 10C can be further enhanced. In addition, the outer edge of the lower frame part 22c of the holding part 22 and the upper end surface of the board 31 are covered with the first decorative sheet 23B and the second decorative sheet 32A, so that the lower frame part 22c and the board 31 are prominent. Even if there is, the first decorative sheet 23B and the second decorative sheet 32A hide each other, so that a sense of unity of the entire structure 10C can be maintained.

<Fifth Embodiment of Structure>
FIG. 17 is a cross-sectional view illustrating a structure according to the fifth embodiment. Similar to the above-described fourth embodiment of the structure, the structure 10D of the present embodiment includes a flat light emitting unit 2 disposed near the ceiling C along the uniaxial direction d1 and a light emitting unit 2 separated from the light emitting unit 2. In addition to a flat non-light-emitting portion 3 disposed below the light-emitting portion 2, a base portion 51 is provided between the light-emitting portion 2 and the non-light-emitting portion 3 and supports a side end of the light-emitting portion 2. The light emitting unit support member 5 is further provided.

  As shown in FIG. 17, the light emitting unit support member 5 has an L-shaped cross section, is disposed between the light emitting unit 2 and the non-light emitting unit 3, and is in contact with the lower end of the light emitting unit 2 so that the light emitting unit 2 is formed. It has a flat base 51 to be supported and a flat wall 52 formed integrally with the base 51 and fixed to the wall W. The base 51 is recessed from the light emitting surface 21a of the light emitting unit 2 to the opposite side to the light emitting surface 21a. Specifically, the end face of the base 51 facing the room R is formed so as to be located closer to the wall W than the light emitting surface 21a. On the other hand, the wall 52 is directly attached to the wall W with an adhesive or the like. The upper part of the light emitting unit 2 is fixed to the wall W via the screw 6. Here, the same member as the light emitting unit support member 5 may be used instead of the screw 6.

  According to the structure 10D of the present embodiment, in addition to the same operational effects as those of the above-described first embodiment of the building material panel, the base 51 of the light emitting unit support member 5 is closer to the wall W than the light emitting surface 21a of the light emitting unit 2. The decorative surface 23a of the first decorative sheet 23B and the decorative surface 32a of the second decorative sheet 32A can be easily aligned, and the light emitting unit 2 can be easily removed. In the present embodiment, the light emitting unit support member 5 having the base 51 and the wall 52 has been described. However, when the base 51 is directly fixed to the wall W, the wall 52 may not be provided.

<Sixth Embodiment of Structure>
FIG. 18 is a sectional view showing a structure according to the sixth embodiment. The structure 10E of the present embodiment is different from the above-described fifth embodiment in that a third decorative sheet 4A along the uniaxial direction d1 is provided between the base 51 of the light emitting unit support member 5 and the non-light emitting unit 3. ing. The other configuration is the same as that of the fifth embodiment, and the description thereof will not be repeated.

  Specifically, the third decorative sheet 4A is disposed in a gap between the lower end of the base portion 51 and the upper end of the non-light emitting portion 3 (that is, the upper end of the second decorative sheet 32A), and is attached to the wall W with an adhesive or the like. It is pasted.

  According to the structure 10E of the present embodiment, in addition to obtaining the same operation and effect as the above-described fifth embodiment, the third decorative sheet 4A along the uniaxial direction d1 between the base 51 and the non-light emitting portion 3 is further provided. Since it is provided, the sense of unity of the entire structure 10E can be further enhanced.

<Seventh Embodiment of Structure>
FIG. 19 is an exploded perspective view showing a surface light source device having a structure according to the seventh embodiment. In the structure of the present embodiment, the surface light source device 21 has a light reflecting sheet 221 disposed at a position facing the light emitting surface 21a, and a light emitting sheet 21a having a light emission amount smaller than a certain amount of light emitted from some other position. An adjustment sheet 222 for adjusting the amount of light emitted from a certain position on the light emitting surface 21a; and a first side s1 in the uniaxial direction d1 between the light emitting surface 21a and the light reflecting sheet 221 between the light emitting surface 21a and the light reflecting sheet 221. And a light source 211 that emits light from the first side s1 to the second side s2 in the uniaxial direction d1. The adjustment sheet 222 is located closer to the light emitting surface 21a than the light source 211 is.

  In this case, as shown in FIG. 19, a light reflection sheet 221 is provided on one main surface 212b of the light guide plate 212 of the surface light source device 21, and an adjustment sheet 222 is provided on the other main surface 212a. The light diffusion sheet 223 is provided on the surface of the adjustment sheet 222 opposite to the surface facing the light guide plate 212. In addition, as described above, the light source 211 faces the side surface from the first side s1 in the uniaxial direction d1 so as to face the side surface defined between the pair of main surfaces 212a and 212b of the light guide plate 212. The light from the light source 211 is incident on the side surface.

  The adjustment sheet 222 includes a transparent substrate 222a having a visible light transmission property and a light absorbing portion 222b provided on the substrate 222a. The light absorbing portion 222b includes, for example, a pigment having a visible light absorbing property, and has a visible light absorbing function. As an example, the light absorbing section 222b includes carbon black or titanium black.

  The adjustment sheet 222 is located at a position close to the non-light-emitting region 13 located on the second side s2 in the uniaxial direction d1, in other words, at a position separated from the light source 211 in the uniaxial direction d1, the amount of light emitted from the first decorative sheet 23. Lower. Then, the light absorbing ability in each area of the adjustment sheet 222 is not uniform but changes. For example, the light absorbing ability of the adjustment sheet 222 in a certain area of the adjustment sheet 222 in a certain area closer to the light source 211 is located on the first side s1 in the uniaxial direction d1 than the area. By making the intensity higher than the power, it is possible to reduce the amount of light emitted from a region located on the second side s2 in the uniaxial direction d1 and close to the non-light emitting region 13 in the light emitting region 12. Further, the light absorbing ability of the adjustment sheet 222 in an arbitrarily selected area is equal to or greater than the light absorbing ability of the adjustment sheet 222 in another area located on the first side s1 in the uniaxial direction d1 with respect to the area. Thus, in the light emitting region 12, the amount of emitted light can be reduced as the light emitting region 12 approaches the non-light emitting region 13 located on the second side s2 in the uniaxial direction d1. According to these adjustment sheets 222, the brightness in the light emitting region 12 can be made darker in a region close to the non-light emitting region 13 than in a region separated from the non-light emitting region 13. As a result, the presence of the surface light source device 21 can be effectively reduced, and the sense of unity of the entire structure can be further enhanced.

  Note that the visible light absorbing ability can be adjusted by the pigment density, the arrangement density of the light absorbing portions 222b, the thickness of the light absorbing portions 222b, and the like. The higher the pigment content density, the higher the visible light absorption capacity. When the arrangement density of the light absorbing portions 222b is high, the visible light absorbing ability becomes strong. When the thickness of the light absorbing portion 222b is large, the visible light absorbing ability becomes strong.

<Eighth Embodiment of Structure>
FIG. 20 is an exploded perspective view showing a surface light source device having a structure according to the eighth embodiment. The surface light source device 21 of the structure according to the present embodiment is different from the above-described seventh embodiment in that the adjustment sheet 222 is provided closer to the light reflection sheet 221 than the light source 211 is. That is, as shown in FIG. 20, the adjustment sheet 222 is provided on one main surface 212b of the light guide plate 212 of the surface light source device 21. The other configuration is the same as that of the seventh embodiment, and the description thereof will not be repeated. According to the example of FIG. 20, since it is possible to prevent the user from recognizing the presence of the adjustment sheet 222, it is possible to suppress a reduction in the design of the adjustment sheet 222.

  As described above, the embodiments of the present disclosure have been described in detail. However, the present invention is not limited to the above embodiments, and various designs may be made without departing from the spirit of the present invention described in the claims. Changes can be made. For example, in the above-described embodiment, the example in which the building material panel is attached to the wall W of the room R has been described, but it may be attached to a part such as a pillar of a building.

1, 1A, 1B Building material panel 2, 2A, 2B Light-emitting portion, light-emitting panel 3, non-light-emitting portion, non-light-emitting panel 3a first non-light-emitting portion 3b second non-light-emitting portion 4, 4A third decorative sheet 5, light-emitting portion support member 10 , 10A, 10B, 10C, 10D, 10E Structure 11 Lighting fixture 12 Light-emitting area 13 Non-light-emitting area 21 Surface light source device 21a Light-emitting surface 22, 22A, 24 Holding part 22a Opening parts 22b, 24a Upper frame parts 22c, 24b Lower side Frame part 22d Left frame part 22e Right frame part 22f Back plate part 22g Through holes 23, 23A, 23B First decorative sheets 23a, 32a Decorative surface 31 Board (plate-like member)
32, 32A Second decorative sheet 51 Base 52 Wall 211 Light source 212, 212A, 212B, 212C, 212D, 212E Light guide plate 221 Light reflection sheet 222 Adjustment sheet C Ceiling F Floor R Room W Wall

Claims (20)

A surface light source device having a light emitting surface,
A holding unit that holds the surface light source device so as to expose at least a part of the light emitting surface,
A first decorative sheet provided so as to cover at least a part or the entire surface of the light emitting surface;
For the surface light source device, a plate-shaped member arranged along an axial direction parallel to the surface direction of the light-emitting surface, and a second decorative sheet provided so as to cover at least a part of the plate-shaped member. Has,
The first decorative sheet and the second decorative sheet are arranged along the uniaxial direction while being separated from each other,
The surface light source device is located on the first side in the uniaxial direction relative to the plate-shaped member,
The amount of emitted light from the light emitting surface is gradually reduced from the first side in the uniaxial direction toward a second side opposite to the first side,
The first decorative sheet is attached to at least one of the surface light source device and the holding unit ,
The second decorative sheet is disposed so as to have a gap between the second decorative sheet and the first decorative sheet in the uniaxial direction,
The building material panel unit, wherein no other member is interposed in the gap between the first decorative sheet and the second decorative sheet . The building material panel unit according to claim 1 , wherein a length of the gap along the uniaxial direction is within 30 mm. In the above uniaxial direction, the first decorative sheet of the decorative surface and building materials panel unit according to claim 1 or 2, wherein the second decorative sheet of the decorative surface is flush. The building material panel unit according to any one of claims 1 to 3 , wherein the holding portion sandwiches the surface light source device from both sides along the uniaxial direction and has at least a pair of frame portions facing each other. The building material panel unit according to claim 4 , wherein the holding portion connects the pair of frame portions and further has a back plate portion arranged on a side opposite to the light emitting surface. The building material panel unit according to claim 5 , wherein the back plate portion of the holding portion has one or more holes. The building material panel unit according to any one of claims 4 to 6 , wherein the first decorative sheet is provided so as to cover an outer edge of the frame portion. The surface light source device,
A light reflection sheet arranged at a position facing the light emitting surface,
An adjustment sheet for adjusting the amount of light emitted from a certain position of the light emitting surface so as to be smaller than the amount of light emitted from another certain position of the light emitting surface;
Between the light emitting surface and the light reflecting sheet, the light emitting surface and the light reflecting sheet are located on one side in the uniaxial direction with respect to the light emitting surface, and emit light from one side in the uniaxial direction to the other side. A light source for emitting light,
The control sheet is located on the light emitting surface side of the light source, building materials panel unit according to any one of claims 1-7. The surface light source device,
A light reflection sheet arranged at a position facing the light emitting surface,
An adjustment sheet for adjusting the amount of light emitted from a certain position of the light emitting surface so as to be smaller than the amount of light emitted from another certain position of the light emitting surface;
Between the light emitting surface and the light reflecting sheet, the light emitting surface and the light reflecting sheet are located on one side in the uniaxial direction with respect to the light emitting surface, and emit light from one side in the uniaxial direction to the other side. A light source for emitting light,
The building material panel unit according to any one of claims 1 to 7 , wherein the adjustment sheet is located closer to the light reflection sheet than the light source. A structure having at least one building material panel unit according to any one of claims 1 to 9 ,
A wall or ceiling, a light emitting area including the surface light source device and the first decorative sheet, and a non-light emitting area including a plate-shaped member and a second decorative sheet;
The surface light source device and the first decorative sheet are attached to the wall by attaching the holding unit to the wall, or attached to the ceiling by attaching the holding unit to the ceiling. Yes,
The plate-shaped member and the second decorative sheet are attached to the wall such that the plate-shaped member is located closer to the wall than the second decorative sheet, or the plate-shaped member is the second decorative sheet. Attached to the ceiling to be located on the ceiling side than the decorative sheet,
The structure, wherein the light emitting region and the non-light emitting region are arranged along the uniaxial direction. When the length along the uniaxial direction of the gap is t, and the distance from the decorative surface of the first decorative sheet to the wall or the ceiling is d, t and d are:
0.1 ≦ t / d ≦ 5
The structure according to claim 10 , which satisfies the following relationship. Having a plurality of the building material panel units,
The light emitting region, the structure according to claim 10 or 11 are formed by juxtaposed each along a direction perpendicular the plurality of the surface light source device and the first decorative sheet to the uniaxial direction. A mounting method of building material panel unit according to any one of claims 1 to 9
Attaching the surface light source device and the first decorative sheet;
Attaching the plate-shaped member and the second decorative sheet so as to be located on the second side in the uniaxial direction with respect to the surface light source device. A surface light source device having a light emitting surface, a holding unit for holding the surface light source device so as to expose at least a part of the light emitting surface, and a first decorative sheet provided to cover at least a part of the light emitting surface And a light emitting unit having:
For the surface light source device, a plate-shaped member arranged along an axial direction parallel to the surface direction of the light-emitting surface, and a second decorative sheet provided so as to cover at least a part of the plate-shaped member. A non-light-emitting portion having
With
The light emitting unit and the non-light emitting unit are arranged apart along the uniaxial direction,
The light emitting unit is located on the first side in the uniaxial direction relative to the non-light emitting unit,
Between the light emitting portion and the non-light emitting portion, a third decorative sheet is provided along the uniaxial direction,
The amount of emitted light from the light emitting surface is gradually reduced from the first side in the uniaxial direction toward a second side opposite to the first side,
The first decorative sheet is attached to at least one of the surface light source device and the holding unit ,
The third decorative sheet is interposed between the first decorative sheet and the second decorative sheet,
The structure, wherein the third decorative sheet is recessed on a side opposite to the light emitting surface from a decorative surface of the first decorative sheet and a decorative surface of the second decorative sheet . A surface light source device having a light emitting surface, a holding unit for holding the surface light source device so as to expose at least a part of the light emitting surface, and a first decorative sheet provided to cover at least a part of the light emitting surface And a light emitting unit having:
For the surface light source device, a plate member disposed along a uniaxial direction parallel to the surface direction of the light emitting surface and a second decorative sheet provided so as to cover at least a part of the plate member. A non-light-emitting portion that is disposed apart from the light-emitting portion along the uniaxial direction,
A light emitting unit support member having at least a base disposed between the light emitting unit and the non-light emitting unit and supporting a side end of the light emitting unit;
With
The base of the light emitting unit support member is recessed on the opposite side to the light emitting surface from the light emitting surface,
The light emitting unit is located on the first side in the uniaxial direction relative to the non-light emitting unit,
The amount of emitted light from the light emitting surface is gradually reduced from the first side in the uniaxial direction toward a second side opposite to the first side,
The first decorative sheet is attached to at least one of the surface light source device and the holding unit ,
The second decorative sheet is disposed so as to have a gap between the second decorative sheet and the first decorative sheet in the uniaxial direction,
The structure, wherein no other member is interposed in the gap between the first decorative sheet and the second decorative sheet . Base lighting,
A light emitting unit that emits light at a lower luminance than the base illumination, a surface light source device having a light emitting surface, and a holding unit that holds the surface light source device so as to expose at least a part of the light emitting surface, A light emitting unit having a first decorative sheet provided to cover a part of the light emitting surface;
For the surface light source device, a plate-shaped member arranged along an axial direction parallel to the surface direction of the light-emitting surface, and a second decorative sheet provided so as to cover at least a part of the plate-shaped member. A non-light-emitting portion having
With
The light emitting unit and the non-light emitting unit are arranged side by side along the uniaxial direction,
The light emitting unit is located on the first side in the uniaxial direction relative to the non-light emitting unit,
The amount of emitted light from the light emitting surface is gradually reduced from the first side in the uniaxial direction toward a second side opposite to the first side,
The first decorative sheet is attached to at least one of the surface light source device and the holding unit ,
The second decorative sheet is disposed so as to have a gap between the second decorative sheet and the first decorative sheet in the uniaxial direction,
A structure in which no other member is interposed in the gap between the first decorative sheet and the second decorative sheet . The structure according to claim 15 , wherein a length of the gap along the uniaxial direction is within 30 mm. With a wall or ceiling,
The building material panel unit according to any one of claims 1 to 9 , attached to the wall or the ceiling,
The surface light source device and the first decorative sheet are attached to the wall by attaching the holding unit to the wall, or attached to the ceiling by attaching the holding unit to the ceiling. Yes,
The plate-like member and the second decorative sheet, either the plate-like member is installed in a said wall so as to be positioned on the wall side of the second decorative sheet, or the plate-like member is the first (2) A structure attached to the ceiling so as to be located closer to the ceiling than the decorative sheet. Further comprising a wall or ceiling,
The surface light source device and the first decorative sheet are attached to the wall by attaching the holding unit to the wall, or attached to the ceiling by attaching the holding unit to the ceiling. Yes,
The plate-like member and the second decorative sheet, either the plate-like member is installed in a said wall so as to be positioned on the wall side of the second decorative sheet, or the plate-like member is the first The structure according to any one of claims 15 to 17 , wherein the structure is attached to the ceiling so as to be located closer to the ceiling than the two decorative sheets. A length along the axial direction of the front SL gap t, and the distance from the decorative surface of the first decorative sheet to the wall or the ceiling and the d, t and d,
0.1 ≦ t / d ≦ 5
Satisfy the relationship of structure according to claim 18 or 19.

Images