JP6428117B2 - Lighting, roll screen and blinds - Google Patents

Description

  The present invention relates to a daylighting tool having a daylighting function, a roll screen, a window, a door, and a blind.

  A roll-up screen having a daylighting function (hereinafter referred to as a roll screen) is known (see Patent Documents 1 and 2). The roll screen described in Patent Documents 1 and 2 includes a light diffusion layer having a light transmission part and a light diffusion part, reflects light at the interface between the light transmission part and the light diffusion part, So that it jumps up above

JP2013-15569A JP 2013-157273 A

  Conventional roll screens with daylighting function are made of non-breathable materials such as resin, especially in the summer, which blocks the pleasant wind from the outside, and the indoor temperature tends to rise. In addition, there is a problem that the room cannot be ventilated.

  Further, from the viewpoint of indoor interior design, it may be desirable to form with a member other than resin (for example, cloth).

  The present invention has been made in view of the above-described problems, and an object thereof is to provide a lighting tool, a roll screen, and a blind having both daylighting performance and air permeability.

In order to solve the above-described problem, according to one aspect of the present invention, the light-emitting unit and the ventilation unit arranged along the light incident surface are provided.
The daylighting unit has a light deflecting unit for deflecting light incident on the light incident surface,
The daylighting tool having a vent hole penetrating from the light incident surface to the light emitting surface opposite to the light incident surface is provided.

  The ventilation portion may include an opening formed in a part of the daylighting portion.

  The opening may be arranged on at least one of the top side, the ground side, or the center side of the top and bottom when the light incident surface of the lighting tool is arranged in the top and bottom direction.

  The ventilation part may have a fiber sheet having a ventilation hole.

A plurality of the daylighting units arranged separately along the light incident surface may be provided,
The fiber sheet may be bonded to the plurality of daylighting units on the light emission surface side of the plurality of daylighting units.

A plurality of the daylighting units arranged separately along the light incident surface may be provided,
The fiber sheet may be disposed between the plurality of daylighting units that are spaced apart from each other along the light incident surface.

A plurality of the daylighting units arranged separately along the light incident surface may be provided,
The fiber sheet is
A plurality of fiber sheet portions to be joined to corresponding lighting tools on the light exit surface side of the plurality of daylighting portions;
You may have a fiber joint part which joins adjacent fiber sheet parts among these fiber sheet parts.

  The vent hole of the fiber joint portion may be larger than the vent holes of the plurality of fiber sheets.

  The fiber sheet may be woven fabric, non-woven fabric, knitted fabric, lace, or felt.

  The light deflection unit includes a base unit having a plurality of grooves spaced apart along the light incident surface, and a plurality of louvers having a refractive index different from that of the base unit and disposed in the plurality of grooves. And may have a part.

  A roll screen provided with a mechanism for rolling the above-described daylighting tool into a roll shape and developing the wound daylighting tool into a surface shape may be provided.

A plurality of slats each having the above-described lighting tool;
There may be provided a blind provided with a mechanism for varying the inclination angle of the plurality of slats.

  According to the present invention, it is possible to provide a daylighting tool, a roll screen, and a blind having both daylighting and air permeability.

The top view of the lighting tool 1 by the 1st Embodiment of this invention. The figure which shows the example which formed the ventilation part 3 only in the top | upper side. The figure which shows the example which formed the ventilation part 3 only in the ground side. The figure which shows the example which formed the ventilation part 3 only in the center side of the top and bottom. The figure which shows the shape of an opening part. The figure which shows the cross-section at the time of applying the lighting tool 1 to the lighting sheet 20. FIG. The top view and sectional drawing of the lighting tool 1 by the 2nd Embodiment of this invention. The top view and sectional drawing of the lighting tool 1 by the 1st modification of FIG. The top view and sectional drawing of the lighting tool 1 by the 2nd modification of FIG. The top view and sectional drawing of the lighting tool 1 by the 3rd Embodiment of this invention. The top view and sectional drawing of the lighting tool 1 by the 1st modification of FIG. The top view and sectional drawing of the lighting tool 1 by the 2nd modification of FIG. The perspective view of the roll screen by one Embodiment. The perspective view of the blind by one Embodiment.

  Embodiments of the present invention will be described below with reference to the drawings. In the drawings attached to the present specification, for the sake of illustration and ease of understanding, the scale and the vertical / horizontal dimension ratio are appropriately changed and exaggerated.

  As used in this specification, the shape and geometric conditions and the degree thereof are specified, for example, terms such as “parallel”, “orthogonal”, “identical”, length and angle values, etc. Without being bound by meaning, it should be interpreted including the extent to which similar functions can be expected.

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

  Furthermore, in this specification, the “sheet surface (film surface, plate surface, panel surface)” is the plane of the target sheet-like member when the target sheet-like member is viewed as a whole and globally. A surface that matches the direction. In the embodiment described below, the daylighting unit and the ventilation unit described later may be arranged in parallel or slightly inclined, but in the present specification, each layer is collectively referred to as a sheet surface. There is also. Moreover, in this specification, the "normal direction" used with respect to a sheet-like (film shape, plate shape, panel shape) member refers to the normal direction to the sheet surface of the said member.

(First embodiment)
FIG. 1 is a plan view of a daylighting tool 1 according to a first embodiment of the present invention. The daylighting tool 1 of FIG. 1 is applicable to the daylighting sheet 20, for example. A normal daylighting sheet is made of resin and does not have air permeability. On the other hand, the lighting tool 1 according to the present embodiment includes a lighting unit 2 and a ventilation unit 3. The ventilation part 3 in FIG. 1 is an opening formed on the lighting tool 1, and the lighting part 2 is a region other than the opening on the lighting tool 1.

  The opening, that is, the ventilation portion 3 is a hole penetrating from the light incident surface of the lighting tool 1 to the light emitting surface on the opposite side. The ventilation part 3 is for ventilating, and there is no particular limitation on the diameter and number of the openings constituting the ventilation part 3, but the larger the diameter of the opening or the area of the daylighting tool 1 is. The larger the ratio of the total area of the openings, the narrower the surface that can be used for daylighting, so that the daylighting performance is lowered, but the air permeability is improved. In addition, when the diameter of the opening is increased, the amount of light penetrating the daylighting tool 1 through the opening is increased, the antiglare property is lowered, and the inside state can be easily seen from the outside through the opening, and privacy is also improved. On the other hand, it becomes easier to visually recognize the state from the inside through the opening, and the viewability is improved. Therefore, it is desirable to determine the location where the opening is formed, the diameter of the opening, and the number of openings, taking into account lighting performance, air permeability, antiglare properties, privacy, and viewability.

  FIG. 1 shows an example in which the opening is uniformly formed over the entire light incident surface of the daylighting tool 1, but the opening may be formed only in a part of the light incident surface as will be described later. You may make the ratio of the opening part per area nonuniform according to a place. Moreover, in FIG. 1, although the several opening part is arranged in parallel with 2 sides which the rectangular lighting tool 1 opposes, the arrangement direction of a several opening part is arbitrary.

  As described above, the opening on the daylighting tool 1 does not have a positive effect on the daylighting performance, so it is desirable to provide it in a place that does not affect the daylighting performance as much as possible. For example, when the lighting tool 1 is applied to a window arranged in the top-and-bottom direction, the incident direction and the incident angle of light to the window vary depending on the installation location, installation direction, season, and time zone of the window. Therefore, the position of the opening may be determined in consideration of the incident direction and incident angle of light to the window. Since it is not realistic to set the position of the opening individually for each installation location of the window, a plurality of types of daylighting tools 1 having different openings are prepared in advance, and the optimal one among them is prepared. Should be selected.

  2 to 4 are plan views of the daylighting tool 1 in which the ventilation portion 3 is provided in a place different from that in FIG. 2 shows an example in which the ventilation part 3 is formed only on the top side, FIG. 3 shows an example in which the ventilation part 3 is formed only on the ground side, and FIG. 4 shows an example in which the ventilation part 3 is formed only on the center side of the top and bottom. Is shown.

  Each of FIGS. 1 to 4 is provided with a region in which a plurality of openings constituting the ventilation portion 3 is not formed, and this region is the daylighting unit 2 and is used for positive lighting. In addition, since the area between adjacent openings can also be used for daylighting, if it is desired to perform daylighting even in the area where the openings are formed, the distance between the openings may be widened or the diameter of the openings may be reduced. .

  1 to 4, the opening is circular, but the shape of the opening is not particularly limited. For example, as shown in FIG. 5, any of a triangle, a square, a star, an ellipse, or other shapes may be used, or a plurality of shapes may be mixed. A plurality of openings having different areas may be mixed.

  The lighting tool 1 shown in FIGS. 1-4 has the ventilation part 3 which penetrates the lighting tool 1 itself. Accordingly, when the daylighting tool 1 of FIGS. 1 to 4 is applied to a daylighting sheet 20 having a small thickness and the daylighting sheet 20 is joined to another base material, the other base material also has air permeability. Need to be. This is because when the other base material does not have air permeability, even if the daylighting sheet 20 has the vent portion 3, the vent portion 3 is blocked by the other base material. Specific examples of other substrates will be described in the embodiments described later.

  The cross-sectional structure when the lighting tool 1 of FIG. 1 is applied to the lighting sheet 20 is as shown in FIG. The daylighting tool 1 in FIG. 6 includes a light control layer 7 disposed on the base material layer 6, a protective layer 8 disposed on the light control layer 7 for providing light resistance and scratch resistance, There is provided a daylighting sheet 20 having a design layer 13 for improving design that is disposed on the material layer 6 via an adhesive layer 9. The daylighting tool 1 according to the present embodiment may be the daylighting sheet 20 in FIG. 6 alone, or may be a structure in which the daylighting sheet 20 is bonded to another substrate as described above.

  The light control layer 7 in FIG. 6 has a base portion 11 having a plurality of grooves 10 that are spaced apart from each other along the light incident surface 7 a, and has a refractive index different from that of the base portion 11 and is disposed in the plurality of grooves 10. And a plurality of louver portions 12. The interior of the louver portion 12 may be a cavity or may be filled with a filling material having a refractive index different from that of the base portion 11.

  The louver part 12 has a first surface 12a and a second surface 12b extending in a direction intersecting the light incident surface. The louver part 12 changes the traveling direction of light based on the difference in refractive index between the base part 11 and the louver part 12 at least on the first surface 12 a of the interface with the base part 11. FIG. 6 shows an example of an asymmetric structure in which all the illustrated louver portions 12 have first and second surfaces 12a and 12b having different shapes, but some of the louver portions 12 have a light incident surface 7a. A symmetrical structure in which the shapes of the two surfaces connected to each other are equal may be used.

  Note that the cross-sectional structure of the daylighting sheet 20 constituting the daylighting tool 1 does not necessarily have to be constituted by the base part 11 and the louver part 12 as shown in FIG. 6. For example, a plurality of optical prisms are provided along the light incident surface. A body may be arranged to jump up the incident light obliquely upward.

(Manufacturing method of the daylighting sheet 20)
Next, the constituent material and manufacturing process of the daylighting sheet 20 of FIG. 6 will be described. As the material of the base portion 11, for example, a material obtained by mixing and homogenizing a photocurable prepolymer, a reactive dilution monomer, a mold release agent, and a photopolymerization initiator is used. As the material of the base portion 11, a curable resin such as a thermosetting resin or an electron beam curable resin may be used instead of the ultraviolet curable resin.

  In order to form the groove 10 as shown in FIG. 6 in the base portion 11, for example, a mold roll is used. The surface of the mold roll is cut with a cutting tool in accordance with the shape of the groove 10 to form a plurality of convex portions corresponding to the shape of each groove 10.

  The composition of the base portion 11 is filled between the mold roll and the nip roll formed with the convex portions and pressurized with both rolls. For example, the composition of the base portion 11 is cured by irradiating ultraviolet rays with a high-pressure mercury lamp. The base part 11 is formed. Thereafter, the base portion 11 is released from the mold roller by a peeling roller, and an intermediate member including the base portion 11 is produced.

  As a material of the base material layer 6, for example, a transparent film such as polyethylene terephthalate (PET) or polycarbonate (PC) is used. The thickness of the base material layer 6 is 5 to 200 μm, preferably 10 to 150 μm, more preferably 50 to 100 μm. If the thickness of the base material layer 6 is less than 5 μm, wrinkles may occur during production, resulting in poor productivity. Conversely, if the thickness of the base material layer 6 is greater than 200 μm, the cost increases. There is a possibility that a defect such as loss of ionizing radiation occurs when ionizing radiation is irradiated through the base material layer 6 when curing.

  As the filling material to be filled in the groove 10 of the base portion 11, for example, a material obtained by mixing and homogenizing an ultraviolet curable resin such as a photocurable prepolymer, a reactive dilution monomer, and a photopolymerization initiator is used. It is done. A thermosetting resin or an electron beam curable resin may be used instead of the ultraviolet curable resin.

  As described above, in this embodiment, the base part 11 and the louver part 12 have different refractive indexes. When the louver part 12 is filled with a filling material, both the base part 11 and the louver part 12 are formed using a curable resin such as a thermosetting resin, an ultraviolet curable resin, and an electron beam curable resin. The base part 11 and the louver part 12 can be provided with a difference in refractive index by changing the material of the resin and the type of additive contained therein. In the above description, the example in which the louver portion 12 is filled with a filling material having a refractive index different from that of the base portion 11 has been described. However, the present invention is not limited to this. The part 12 may have a difference in refractive index.

  The composition of the adhesive layer 9 includes, for example, one or more of a thermoplastic resin such as polyvinyl acetal resin, ethylene vinyl acetate copolymer resin, ethylene acrylic copolymer resin, polyurethane resin, and polyvinyl alcohol resin. It may be used by mixing with additives such as an antioxidant and an ultraviolet shielding agent, or may be formed by mixing an acrylic resin adhesive, a crosslinking agent, and a diluent. The composition of the adhesive layer 9 is formed into a sheet or film and disposed between the daylighting sheet 20 and the transparent substrate, and after applying pressure to extrude air, it is heated and integrated with the daylighting sheet 20. If it is liquid, it is applied to a release film and dried, and then attached to the daylighting sheet 20.

  Examples of the composition of the protective layer 8 include curable resins such as an ultraviolet curable resin, a thermosetting resin, and an electron beam curable resin, and examples thereof include a urethane resin and an acrylic resin. As an additive to the resin, a hard filler is added to improve scratch resistance, or a material such as an ultraviolet shielding material is mixed to improve light resistance.

  The material of the design layer 13 may be, for example, a woven fabric made of chemical fibers or natural fibers, or a non-woven fabric in which various fibers are entangled without being woven, or a design that is printed on a transparent film. It may be. Preferably, the cloth used in a general roll screen is used. The design of the design layer 13 may be appropriately determined in consideration of the balance between the design property and the daylighting property because the daylighting performance may be hindered.

When the daylighting sheet 20 is manufactured by the process described above, an opening is formed on the daylighting sheet 20 by a punching machine. The formed opening portion becomes the ventilation portion 3.
In addition, after bonding the lighting sheet 20 of the state which does not form an opening part to base materials, such as a transparent base material similarly with no opening part, the opening part which penetrates the lighting sheet 20 and a base material is formed, and the lighting tool 1 May be completed.

  Thus, in 1st Embodiment, since the ventilation part 3 is provided in the lighting tool 1, not only lighting performance but air permeability can also be given.

(Second Embodiment)
In the second embodiment described below, the daylighting tool 1 is manufactured by combining the sheet-shaped daylighting unit 2 and the fiber sheet.

  FIG. 7 is a plan view and a sectional view of the daylighting tool 1 according to the second embodiment of the present invention. The daylighting tool 1 of FIG. 7 is applicable to, for example, a roll screen, and is formed with a thin thickness using a flexible material.

  The lighting tool 1 of FIG. 7 includes a plurality of daylighting sheets 20 that are spaced apart from each other along the light incident surface, and one or more fiber sheets 21 that connect adjacent daylighting units 2 to each other. The daylighting sheet 20 has the same structure as FIG.

  For example, when the light incident surface of the daylighting tool 1 in FIG. 7 is arranged in the vertical direction, the plurality of daylighting sheets 20 are arranged separately in the vertical direction. For this reason, the daylighting sheets 20 and the fiber sheets 21 are alternately arranged in the vertical direction.

  The daylighting sheet 20 and the fiber sheet 21 are joined by, for example, providing a margin portion along the edges of the daylighting sheet 20 and the fiber sheet 21 and attaching an adhesive to the margin portion to join the daylighting sheet 20. do it.

  The daylighting sheet 20 of FIG. 7 has only the daylighting part 2 and does not have the ventilation part 3. The fiber sheet 21 may be a woven fabric woven with various fibers such as silk thread, cotton yarn, wool yarn, chemical fiber, a non-woven fabric entangled without woven various fibers, a knitted fabric knitted with various fibers, A lace using various fibers may be used, or a felt obtained by compressing various fibers into a thin plate shape may be used. However, the fiber sheet 21 of this embodiment has a ventilation hole for ventilation.

  Although the daylighting sheet 20 of FIG. 7 does not have air permeability, since the fiber sheet 21 has air permeability, ventilation can be performed in the area where the fiber sheet 21 is exposed between the daylighting sheets 20.

  Further, since the fiber sheet 21 has a vent hole, it is possible to allow incident light to pass through the vent hole to some extent, but an effect of jumping up the incident light obliquely upward cannot be expected. On the other hand, the daylighting sheet 20 includes a louver part 12 and a base part 11 as shown in FIG. 6, for example, so that incident light can be flipped obliquely upward.

  As described above, the daylighting tool 1 in FIG. 7 performs daylighting with the daylighting sheet 20 because the daylighting sheets 20 and the fiber sheets 21 are alternately arranged in the vertical direction when the light incident surface is arranged in the vertical direction. The fiber sheet 21 can be ventilated, and both lighting and ventilation can be performed.

  8 is a plan view and a cross-sectional view of the daylighting tool 1 according to the first modification of FIG. 7, and FIG. 9 is a plan view and a cross-sectional view of the daylighting tool 1 according to the second modification of FIG. 8 and 9 show plan views as seen from the light exit surface side of the daylighting tool 1.

  In the daylighting tool 1 in FIG. 8, a fiber sheet 21 having the same size as each daylighting sheet 20 is bonded to the light emitting surface of each daylighting sheet 20. Adjacent fiber sheets 21 are connected by a fiber bonding portion 22. The fiber bonding portion 22 is obtained by extending some fiber yarns in the fiber sheet 21 for a long time. Thus, the common fiber yarn is spanned between the fiber sheet 21 and the fiber bonding portion 22, and the bonding strength between the fiber sheet 21 and the fiber bonding portion 22 can be increased.

  The number of fiber yarns in the fiber bonding portion 22 is significantly smaller than the number of fiber yarns in the fiber sheet 21, and the opening ratio of the fiber bonding portion 22 is larger than the opening ratio of the fiber sheet 21. Therefore, the air flow rate of the fiber bonding portion 22 can be further increased, and the air permeability can be further improved as compared with FIG.

  In the case of FIG. 8, since the fiber sheet 21 is arranged on the light emission surface side of the daylighting sheet 20, a part of the light emitted from the daylighting sheet 20 is absorbed or diffused by the fiber sheet 21, and the daylighting is performed. Performance is expected to decline. In order to suppress the deterioration of the daylighting performance, it is desirable to increase the ratio of the air holes of the fiber sheet 21 bonded to the daylighting sheet 20 as much as possible.

  In the case of FIG. 8, the adjacent fiber sheets 21 are connected by a fiber bonding portion 22 made of fiber yarns extending in one direction, which is not necessarily sufficient in terms of strength. Therefore, as shown in FIG. 9, the fiber bonding portion 22 may be configured with not only fiber yarns extending in one direction but also fiber yarns extending in two intersecting directions. Thereby, the fiber joining part 22 becomes a structure in which the warp and the weft are intertwined, and the adjacent fiber sheets 21 can be joined more firmly. Moreover, since the fiber joint part 22 should just have the ratio of the vent hole per unit area rather than the fiber sheet 21 of the both sides, it is comprised with a woven fabric, a nonwoven fabric, a knitted fabric, a lace, or a felt similarly to the fiber sheet 21. However, what is necessary is just to make the ratio of an air vent larger than the fiber sheet 21. FIG. In addition, since the fiber junction part 22 should just have fewer fiber yarns per unit area than the fiber sheet 21, it is not necessary to comprise only warp or weft as shown in FIG. 8 and FIG. May be formed irregularly.

  Thus, in 2nd Embodiment, since the fiber sheet 21 or the fiber junction part 22 is arrange | positioned between the some daylighting sheets 20 arrange | positioned separately, even if the daylighting sheet 20 itself does not have air permeability. It is possible to ventilate between adjacent daylighting sheets 20.

  Moreover, although it is partially, by using the fiber sheet 21, the lighting tool 1 which was excellent in the designability rather than exposing the lighting sheet 20 can be produced. Since the fiber sheet 21 has various materials and more variations in color than the daylighting sheet 20, by selecting the fiber sheet 21 suitable for the interior of the installation location, the daylighting, breathability, and design are improved. Can be achieved.

(Third embodiment)
In the second embodiment described above, an example in which a plurality of fiber sheets 21 are provided has been described. However, the third embodiment described below is characterized in that a single fiber sheet 21 is provided.

  FIG. 10 is a plan view and a cross-sectional view of the daylighting tool 1 according to the third embodiment of the present invention. Since the daylighting tool 1 according to the third embodiment is also composed of the daylighting sheet 20 and the fiber sheet 21 made of a thin material, it can be applied as, for example, a roll screen.

  FIG. 10 shows a plan view of the daylighting tool 1 as seen from the light emitting surface side. The daylighting tool 1 in FIG. 10 includes a daylighting sheet 20 in which an opening is formed, and a fiber sheet 21 that is bonded to the light emitting surface of the daylighting sheet 20. In FIG. 10, the fiber sheet 21 is illustrated to be bonded to a part of the light emission surface of the daylighting sheet 20, but the fiber sheet 21 may be bonded to the entire surface of the light emission surface of the daylighting sheet 20.

  Since the daylighting sheet 20 has an opening as in the first embodiment, the area where the opening is formed becomes the ventilation part 3, and the other area becomes the daylighting part 2.

  In the present embodiment, at least a part of the opening of the daylighting sheet 20 is covered with the fiber sheet 21, but as described in the second embodiment, the fiber sheet 21 has a vent hole, so that air permeability is ensured. .

  Further, as in the second embodiment, since the fiber sheet 21 is not a divided structure but is connected continuously, it is not necessary to provide the fiber bonding portion 22, the structure is simplified, and the manufacturing is facilitated. Durability is improved.

  11 is a plan view and a cross-sectional view of the daylighting tool 1 according to the first modification of FIG. 10, and FIG. 12 is a plan view and a cross-sectional view of the daylighting tool 1 according to the second modification of FIG. FIG. 11 and FIG. 12 also show plan views viewed from the light emitting surface side of the daylighting tool 1. 11 and 12, the fiber sheet 21 is illustrated as being bonded to only a part of the light emission surface of the daylighting sheet 20, but the fiber sheet 21 is formed on the entire light emission surface of the daylighting sheet 20. May be joined.

  In the daylighting tool 1 of FIG. 11, a plurality of daylighting sheets 20 are spaced apart from each other as in FIG. 7. The plurality of daylighting sheets 20 are joined to one fiber sheet 21 at the light exit surface. Therefore, only the fiber sheet 21 is disposed between two adjacent daylighting sheets 20, and ventilation can be performed through the fiber sheet 21.

  Further, since the plurality of daylighting sheets 20 can be fixed by one fiber sheet 21, the structure is simplified and the manufacture is facilitated.

  In the daylighting tool 1 of FIG. 11, since the fiber sheet 21 is joined to the light emitting surface of the daylighting sheet 20, a part of the light emitted from the daylighting sheet 20 is absorbed or diffused by the fiber sheet 21, and the daylighting performance is improved. There is a risk of falling. Therefore, it is desirable to increase the ratio of the ventilation holes in the fiber sheet 21 as much as possible to improve both the daylighting property and the air permeability.

  The daylighting tool 1 of FIG. 12 is different from FIG. 11 in that the ventilation portion 3 is formed in the daylighting sheet 20. If an opening is provided in the daylighting sheet 20, air permeability can be imparted even in an area where the daylighting sheet 20 and the fiber sheet 21 overlap.

  As described above, in the third embodiment, since one fiber sheet 21 is joined to the light exit surface of one or more daylighting sheets 20, the structure is simplified and manufacturing and assembly are easier than in the second embodiment. become. In the case of the third embodiment, the daylighting sheet 20 and the fiber sheet 21 are at least partially overlapped. However, by increasing the ratio of the air holes in the fiber sheet 21, both daylighting and air permeability are achieved. be able to.

  The daylighting tool 1 according to the first to third embodiments described above is applicable to a daylighting sheet 20 to be attached to a window or the like, a roll screen 23 as shown in FIG. 13, a blind 24 as shown in FIG.

  The roll screen 23 of FIG. 13 is installed, for example, in the vicinity of the window, and can be wound around a roll shaft provided near the upper end of the window. When the roll screen 23 is unfolded, the roll screen 23 is disposed so as to cover the entire window. However, the light incident on the light incident surface of the roll screen 23 through the window is bounced up obliquely by the daylighting unit 2 and is directed toward the ceiling. proceed. Further, if the window is opened, air is taken in and out through the ventilation portion 3 in the roll screen 23.

  The blind 24 in FIG. 14 has a plurality of slats 25 that are arranged, for example, in the vicinity of a window and can adjust the inclination angle. Each slat 25 has the same structure as the daylighting tool 1 according to the first to third embodiments described above. The light incident on the light incident surface of the slat 25 through the window is bounced obliquely upward by the daylighting unit 2 and travels in the ceiling direction. Further, if the window is opened, air is taken in and out through the ventilation portion 3 in the slat 25.

  In FIG. 13 and FIG. 14, the ventilation portion 3 is illustrated in a larger size for conceptual description. However, the ventilation portion 3 is considered in a comprehensive manner in consideration of daylighting performance, antiglare property, viewability, and privacy. It is desirable to adjust the arrangement location, number, and diameter size.

  In addition, the lighting tool 1 according to the first to third embodiments can be widely applied to doors and screen doors. For example, when the daylighting tool 1 according to the first to third embodiments is incorporated in a door, light incident on the door can be flipped up obliquely and has air permeability. Therefore, ventilation can be performed without opening the door, and crime prevention can be achieved.

  Moreover, when the lighting tool 1 by the 1st-3rd embodiment is integrated in a screen door, the size of the opening part of the daylighting sheet 20 or the fiber sheet 21 is a magnitude | size which can prevent invasion of insects, such as a mosquito and a moth. Have Although the conventional screen door does not consider the lighting, if it is a screen door using the lighting tool 1 by 2nd or 3rd embodiment, in addition to the function of an original screen door, it can also have lighting property. .

  The aspect of the present invention is not limited to the individual embodiments described above, and includes various modifications that can be conceived by those skilled in the art, and the effects of the present invention are not limited to the contents described above. That is, various additions, modifications, and partial deletions can be made without departing from the concept and spirit of the present invention derived from the contents defined in the claims and equivalents thereof.

  DESCRIPTION OF SYMBOLS 1 Daylighting tool, 2 Daylighting part, 3 Ventilation part, 6 Base material layer, 7 Light control layer, 8 Protection layer, 9 Adhesion layer, 10 Groove, 11 Base part, 12 Louver part, 13 Design layer, 20 Daylighting sheet, 21 Fiber sheet, 22 Fiber joint, 23 Roll screen, 24 Blind, 25 Slat

Claims (13)

A plurality of daylighting units and ventilation units arranged separately along the light incident surface,
The plurality of daylighting units include a light deflection unit that deflects light incident on the light incident surface,
The ventilation portion has a ventilation hole penetrating from the light incident surface to the opposite light emission surface , and a fiber sheet having the ventilation hole,
The lighting device, wherein the fiber sheet is joined to the plurality of daylighting units on the light emission surface side of the plurality of daylighting units . A plurality of daylighting units and ventilation units arranged separately along the light incident surface,
The plurality of daylighting units include a light deflection unit that deflects light incident on the light incident surface,
The ventilation portion has a ventilation hole penetrating from the light incident surface to the opposite light emission surface, and a fiber sheet having the ventilation hole,
The said fiber sheet is a lighting tool arrange | positioned between the said several lighting parts arrange | positioned spaced apart along the said light-incidence surface. A plurality of daylighting units and ventilation units arranged separately along the light incident surface,
The plurality of daylighting units include a light deflection unit that deflects light incident on the light incident surface,
The ventilation portion has a ventilation hole penetrating from the light incident surface to the opposite light emission surface, and a fiber sheet having the ventilation hole,
The fiber sheet joins adjacent fiber sheet portions among the plurality of fiber sheet portions to be joined to the corresponding daylighting tool and the plurality of fiber sheet portions on the light emission surface side of the plurality of daylighting portions. A daylighting tool having a fiber joint. The lighting tool according to claim 3, wherein a vent hole of the fiber joint portion is larger than a vent hole of the plurality of fiber sheets. A lighting part and a ventilation part arranged along the light incident surface,
The daylighting unit has a light deflecting unit for deflecting light incident on the light incident surface,
The ventilation portion includes an opening formed in a part of the daylighting portion, and a ventilation hole penetrating from the light incident surface to the light emitting surface on the opposite side, and a fiber sheet having the ventilation hole, Daylighting tool. The said opening is a lighting tool of Claim 5 arrange | positioned at least one of the top side, the ground side, or the center side of a top and bottom, when the light-incidence surface of the said lighting tool is arrange | positioned in the top-and-bottom direction. A plurality of the daylighting units disposed apart from each other along the light incident surface;
The daylighting tool according to claim 5 , wherein the fiber sheet is joined to the plurality of daylighting units on a light emission surface side of the plurality of daylighting units. A plurality of the daylighting units disposed apart from each other along the light incident surface;
The said fiber sheet is a lighting tool of Claim 5 thru | or 6 arrange | positioned between the said several lighting parts spaced apart along the said light-incidence surface. A plurality of the daylighting units disposed apart from each other along the light incident surface;
The fiber sheet is
A plurality of fiber sheet portions to be joined to corresponding lighting tools on the light exit surface side of the plurality of daylighting portions;
The lighting tool according to claim 5 , further comprising: a fiber bonding portion that bonds adjacent fiber sheet portions among the plurality of fiber sheet portions. The lighting tool according to claim 9 , wherein a vent hole of the fiber joint portion is larger than a vent hole of the plurality of fiber sheets. Lighting instrument according to any one of the fiber sheet, woven fabric, non-woven, knitted, lace, or claims 1 to 10 is felt. The light deflection unit includes a base unit having a plurality of grooves spaced apart along the light incident surface, and a plurality of louvers having a refractive index different from that of the base unit and disposed in the plurality of grooves. The lighting tool according to any one of claims 1 to 11 , which has a portion. A roll screen provided with a mechanism for winding the daylighting tool according to any one of claims 1 to 12 into a roll shape and developing the wound daylighting tool into a planar shape.

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