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WO2018186435A1 - Dispositif d'éclairage naturel - Google Patents

Dispositif d'éclairage naturel Download PDF

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Publication number
WO2018186435A1
WO2018186435A1 PCT/JP2018/014392 JP2018014392W WO2018186435A1 WO 2018186435 A1 WO2018186435 A1 WO 2018186435A1 JP 2018014392 W JP2018014392 W JP 2018014392W WO 2018186435 A1 WO2018186435 A1 WO 2018186435A1
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WO
WIPO (PCT)
Prior art keywords
daylighting
light
function
area
slats
Prior art date
Application number
PCT/JP2018/014392
Other languages
English (en)
Japanese (ja)
Inventor
恭子 松浦
俊平 西中
透 菅野
Original Assignee
シャープ株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by シャープ株式会社 filed Critical シャープ株式会社
Publication of WO2018186435A1 publication Critical patent/WO2018186435A1/fr

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B5/00—Doors, windows, or like closures for special purposes; Border constructions therefor
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/02—Shutters, movable grilles, or other safety closing devices, e.g. against burglary
    • E06B9/08—Roll-type closures
    • E06B9/11—Roller shutters
    • E06B9/15—Roller shutters with closing members formed of slats or the like
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
    • E06B9/40—Roller blinds
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
    • E06B9/40—Roller blinds
    • E06B9/42—Parts or details of roller blinds, e.g. suspension devices, blind boxes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S11/00—Non-electric lighting devices or systems using daylight
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V11/00—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00
    • F21V11/02—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00 using parallel laminae or strips, e.g. of Venetian-blind type
    • F21V11/04—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00 using parallel laminae or strips, e.g. of Venetian-blind type adjustable
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V33/00—Structural combinations of lighting devices with other articles, not otherwise provided for

Definitions

  • One embodiment of the present invention relates to a lighting device.
  • This application claims priority on Japanese Patent Application No. 2017-075504 filed in Japan on April 5, 2017, the contents of which are incorporated herein by reference.
  • dimming roll screens used for homes can be adjusted for shading and lighting by simply sliding the cloth in front and back even when the screen is closed (for example, Patent Documents 1 and 2).
  • One aspect of the present invention has been made in view of the above-described problems of the prior art, and an object thereof is to provide a daylighting apparatus that can obtain an energy saving effect and is excellent in interior properties.
  • the lighting device includes a first optical functional region having a lighting function, and a second optical functional region having at least one of a light diffusion function, a light shielding function, and a light transmission function.
  • the function is switched by changing the combination of the daylighting structure in which at least the same optical functional area or different optical functional areas overlap in the light transmission direction and the overlapping of the same optical functional area and the different optical functional area.
  • a support mechanism for supporting the daylighting structure is provided.
  • the daylighting structure further includes a third light functional region having a function different from the second light functional region among a light diffusion function, a light shielding function, and a light transmission function. It is good also as a structure.
  • the daylighting structure has a function different from the second light function area and the third light function area among a light diffusion function, a light blocking function, and a light transmission function. It is good also as a structure which further has a 4th optical function area
  • the daylighting structure includes a plurality of slats having a length in one direction, and a first surface and a second surface facing each other in the short direction of the slats via the slats.
  • the support mechanism for supporting the lighting structure in a vertically suspended manner, and the slat has the lighting function or the light blocking function, and the lighting function, the light blocking function, and the light.
  • the diffusion function and the light transmission function one of the first surface and the second surface has a function different from the slat, and the other of the first surface and the second surface is the The slat and the first surface may have different functions.
  • the first surface has the daylighting function
  • the second surface has the light diffusion function
  • the plurality of slats have the light blocking function. Also good.
  • the first surface has the light transmission function
  • the second surface has the light diffusion function
  • the plurality of slats have the daylighting function. It is good.
  • the first surface has the light transmission function
  • the second surface has the light diffusion function
  • the first slat is the daylighting function among the plurality of slats.
  • the second slat may have a light shielding function.
  • the first surface has the daylighting function and the light transmission function
  • the second surface has the light diffusion function
  • the plurality of slats have the light shielding function. It is good also as a structure which has.
  • the annular daylighting structure and the support mechanism for supporting the daylighting structure are provided, and the support mechanism is a pair of supports disposed in parallel apart from each other in the vertical direction. It is good also as a structure which has a winding-up part which winds up the said lighting structure with a roller and the said upper support roller, and the said lighting structure is wound by a pair of said support roller.
  • the daylighting structure further includes a third optical functional region having a function different from the second optical functional region among a light diffusion function, a light shielding function, and a light transmission function.
  • the ratio of at least one of the first optical functional region, the second optical functional region, and the third optical functional region to the entire daylighting structure is the other optical functional region. May be different from the ratio of the entire daylighting structure.
  • the daylighting structure has the first light functional area having the daylighting function, the second light functional area having the light diffusion function, and the light blocking function.
  • the third optical functional area, and the ratio of the third optical functional area to the entire daylighting structure is 1/2 or more, and the first optical functional area and the second optical functional area These optical functional regions may be configured to have the same ratio.
  • the ratios of the first light functional area, the second light functional area, and the third light functional area to the whole of the daylighting structure are different from each other. It is good.
  • the ratio of the first light functional area and the second light functional area to the entire daylighting structure may be different from each other.
  • FIG. 9B is a cross-sectional view taken along line A-A ′ of FIG. 9A.
  • transmission state of the lighting screen 31 of 3rd Embodiment It is a figure which shows the mode of the room
  • the figure which shows the state of an upper lighting and lower transmission It is a figure which shows the mode of the room
  • Sectional drawing (upper light-shielding and lower transmission) which shows the lighting device 60 of 6th Embodiment.
  • Sectional drawing (upper daylighting and lower order light-shielding) which shows the lighting device 60 of 6th Embodiment.
  • Sectional drawing (upper transmission and lower light shielding) which shows the lighting device 60 of 6th Embodiment.
  • Sectional drawing which shows the structure of the modification of the daylighting roll screen 62.
  • FIG. Sectional drawing which shows the lighting state of the lighting roll screen 62.
  • FIG. Sectional drawing which shows the permeation
  • the perspective view which shows the whole structure of the lighting apparatus 70 of 7th Embodiment (higher-order lighting and lower transmission).
  • Sectional drawing which shows the structure of the modification 1 of the daylighting roll screen.
  • Sectional drawing which shows the structure of the modification 1 of the daylighting roll screen.
  • Sectional drawing which shows the structure of the modification 2 of the daylighting roll screen 73.
  • FIG. Sectional drawing which shows the structure of the modification 2 of the daylighting roll screen 73.
  • FIG. 1 is a perspective view showing an overall configuration of a daylighting apparatus 10 according to the first embodiment.
  • FIG. 2A is a diagram illustrating a daylighting state of the daylighting apparatus 10 according to the first embodiment.
  • FIG. 2B is a diagram illustrating a shielding state of the daylighting device 10 according to the first embodiment.
  • FIG. 2C is a diagram for explaining a storage state of the daylighting apparatus 10 according to the first embodiment.
  • FIG. 3 is a diagram illustrating a configuration of the daylighting function unit 15 of the daylighting screen 11 according to the first embodiment.
  • the daylighting apparatus 10 of the present embodiment includes a daylighting screen (lighting structure) 11 provided with a plurality of (three in the present embodiment) optical characteristics.
  • the daylighting apparatus 10 includes a daylighting screen 11, a support mechanism 12 that supports the daylighting screen 11 while switching the daylighting state and the light shielding state of the daylighting screen 11, and a storage unit 13. And is configured.
  • the support mechanism 12 has not only a dimming function for the daylighting screen 11 but also a lifting function for winding the daylighting screen 11 and storing it in the storage unit 13.
  • the daylighting screen 11 includes a daylighting function part (first light function area) 15 having a daylighting function, a light diffusion function part (second light function area) 16 for diffusing light, and a light shielding function part (for blocking light). 3rd optical functional area) 17 and has three optical functions.
  • the daylighting screen 11 of the present embodiment is provided with a plurality of optical characteristics, and the daylighting function unit 15, the light diffusion function unit 16, and the light shielding function unit 17 are configured to overlap in the light transmission direction. .
  • the daylighting apparatus 10 can switch the optical function by changing the combination of the above-described three functional units in the light transmission direction.
  • the daylighting apparatus 10 according to the present embodiment is configured to be dimmable between the daylighting state and the light shielding state.
  • the support mechanism 12 supports the daylighting screen 11 in a form of hanging in the vertical direction.
  • the support mechanism 12 includes a rotary shaft 18 disposed in the storage unit 13 attached to the ceiling 1001 and the like, and a dimming of the lighting screen 11 connected to the rotary shaft 18. And an operation code 19 for operating up and down.
  • the rotating shaft 18 is connected to the upper end side of the daylighting screen 11.
  • the operation cord 19 has one end provided on the daylighting screen 11 and the other end connected to the rotary shaft 18.
  • the rotary shaft 18 is rotated by the operation of the operation code 19.
  • the daylighting screen 11 is rolled up and accommodated in the accommodating portion 13 as the rotating shaft 18 rotates.
  • the daylighting screen 11 includes a daylighting function unit 15 disposed on the light incident surface (first surface) 11a side, and a light emission surface that faces the daylighting function unit 15 in the light transmission direction. (2nd surface)
  • positioned between the daylighting function part 15 and the light diffusion function part 16 are provided.
  • the light shielding function unit 17 includes a plurality of light shielding slats (slats) 7.
  • the lighting function unit 15 on the light incident surface 11 a side and the light diffusion function unit 16 on the light emission surface 11 b side face each other through the short direction of the plurality of light shielding slats 7.
  • the daylighting function unit 15 includes a daylighting film 15A and a transmissive member 15B bonded to one side of the daylighting film 15A, and these are integrated.
  • the daylighting film 15A includes a base material 15a having visible light permeability, a plurality of daylighting parts 15b having visible light permeability provided on one surface side of the base material 15a on the light shielding slat 7 side, and a plurality of daylighting parts 15b. And a gap 15c provided therebetween.
  • the constituent materials of the base material 15a and the plurality of daylighting portions 15b may be different from each other, but are preferably the same material.
  • the base material 15a functions as a support member that supports the plurality of daylighting portions 15b.
  • the daylighting film 15A is a daylighting film obtained by processing a UV curable resin or a thermosetting resin.
  • the plurality of daylighting portions 15b are provided on one side of the base material 15a.
  • the surface on which the plurality of daylighting portions 15 b are provided may be the inner surface 5 a on the light shielding slat 7 side of the base material 15 a or the outer surface 5 b on the opposite side to the light shielding slat 7.
  • Each of the daylighting portions 15b extends along one side of the base material 15a and is provided side by side in a direction intersecting with each extending direction.
  • the daylighting portion 15b is configured by a prism body having a triangular cross section that intersects the longitudinal direction. When the daylighting screen 11 is used, it is desirable to use the daylighting unit 15b in a state where the extending direction of each daylighting portion 15b is along the horizontal direction.
  • the shape of the daylighting portion 15b is not limited to a triangular cross section, and may be a pentagonal cross section, a hexagonal cross section, or a multitaper shape, and is not particularly limited. In FIG. 3, only four daylighting parts 15b are shown, but in reality, a larger number of daylighting parts 15b are provided on the base material. By providing a large number of daylighting parts 15b, when sunlight transmitted through the window glass 1003 enters the daylighting part 15b, it is reflected in the daylighting part 15b and emitted obliquely upward.
  • the critical angle of light reflected by the reflecting surface (not shown) of the daylighting unit 15b among the light incident on the daylighting unit 15b is the smallest.
  • the critical angle of light totally reflected by the reflecting surface is minimized. Therefore, since the range of the incident angle of the light totally reflected by the reflecting surface becomes the widest, the light incident on the daylighting portion 15b can be efficiently guided to the light emitting surface 11b side of the base material 15a. As a result, the loss of light incident on the daylighting unit 15b is suppressed, and the luminance of light emitted from the other surface of the base material 15a can be increased.
  • the refractive index of the base material 15a and the refractive index of the daylighting portion 15b are substantially equal. That is, it is desirable that the base material 15a and the daylighting portion 15b are integrally formed.
  • the refractive index of the base material 15a and the refractive index of the daylighting unit 15b are significantly different, unnecessary light is generated at the interface between the daylighting unit 15b and the base material 15a when light enters the base material 15a from the daylighting unit 15b. Refraction or reflection may occur. In this case, there is a possibility that problems such as failure to obtain desired lighting characteristics and a decrease in luminance may occur.
  • the base material 15a is made of a light transmissive resin such as a thermoplastic polymer, a thermosetting resin, or a photopolymerizable resin. Further, as the light transmissive resin, those made of acrylic polymer, olefin polymer, vinyl polymer, cellulose polymer, amide polymer, fluorine polymer, urethane polymer, silicone polymer, imide polymer, etc. are used. be able to.
  • a light transmissive resin such as a thermoplastic polymer, a thermosetting resin, or a photopolymerizable resin.
  • the light transmissive resin those made of acrylic polymer, olefin polymer, vinyl polymer, cellulose polymer, amide polymer, fluorine polymer, urethane polymer, silicone polymer, imide polymer, etc. are used. be able to.
  • polymethyl methacrylate resin PMMA
  • triacetyl cellulose PET
  • cycloolefin polymer COP
  • PC polyethylene naphthalate
  • PEN polyethylene naphthalate
  • PES polyethersulfone
  • PI polyimide
  • the total light transmittance of the base material 15A is preferably 90% or more in accordance with JIS K7361-1. Thereby, sufficient transparency can be obtained.
  • the daylighting part 15b is comprised with the organic material which has light transmittance and photosensitivity, such as an acrylic resin, an epoxy resin, and a silicone resin, for example.
  • the organic material which has light transmittance and photosensitivity
  • the polymerization initiator, the coupling agent, the monomer, the organic solvent, etc. can be used for these organic materials.
  • the polymerization initiator contains various additive components such as a stabilizer, an inhibitor, a plasticizer, a fluorescent brightening agent, a release agent, a chain transfer agent, and other photopolymerizable monomers. Also good.
  • materials described in Japanese Patent No. 41299991 can be used.
  • the total light transmittance of the daylighting unit 25b is JIS 90% or more is preferable according to the regulation of K7361-1. Thereby, sufficient transparency can be obtained.
  • the light shielding slat 7 is made of a long plate-shaped light shielding base material having a length in one direction.
  • the light-shielding substrate is made of a cloth having light-shielding properties.
  • the light shielding slat 7 is not limited to a material that completely shields light, and for example, a material with low transmittance such as cotton, cotton, hemp or the like may be used.
  • a blind slat as a light-shielding base material may be utilized, for example, the thing made from metals, such as aluminum, wooden, and resin can be mentioned.
  • what coated the surface of the light-shielding base material etc. can be mentioned.
  • the light shielding slats 7 have one end side in the short direction connected to the daylighting function unit 15 constituting the light incident surface 11a and the other end side connected to the light diffusion function unit 16 constituting the light emitting surface 11b.
  • the light diffusion function unit 16 may have a function of isotropically diffusing light that has passed through the daylighting function unit 15 and passed between the light shielding slats 7, or a function of anisotropically diffusing light. You may have.
  • the light diffusing function part 16 having an isotropic light diffusing function for example, a film having a fine structure on one side of a translucent film, or organdy, tulle, chiffon, georgette having a high transmittance (with a sense of transparency) It is desirable to use fabrics such as lace, general lace curtains, and fabrics used for see-through roll screens.
  • a light diffusion sheet in which a large number of diffusion beads are dispersed in a binder resin may also be used.
  • the light diffusion function part 16 having an anisotropic light diffusion function for example, stripe-shaped protrusions extending in one direction are arranged in a direction intersecting the extension direction on one surface side of a light-transmitting substrate.
  • an anisotropic light diffusion sheet having a so-called pseudo stripe structure may be used.
  • the light incident on the light diffusion function unit 16 is transmitted through the light diffusion function unit 16 in an isotropically or anisotropically diffused state. Thereby, the glare which the person who exists indoors senses by the latitude and the azimuth
  • the daylighting apparatus 10 described above is installed such that the daylighting function unit 15 faces the outdoor side and the light diffusion function unit 16 faces the indoor side.
  • the daylighting device 10 includes a daylighting function unit 15, a light shielding slat 7, and a light diffusion function unit 16 arranged in the light transmission direction, and is configured to be able to adjust the degree of overlap of each.
  • FIG. 4A is a diagram illustrating a light blocking state of the daylighting screen 11 according to the first embodiment.
  • FIG. 4B is a diagram illustrating a daylighting state of the daylighting screen 11 according to the first embodiment.
  • FIG. 5 is a diagram illustrating a state in the room where the daylighting apparatus 10 according to the first embodiment is installed, and illustrates a state during light shielding.
  • the operation code 19 shown in FIG. 1 is operated to rotate the rotating shaft 18 in the normal direction opposite to that at the time of daylighting, so that the plurality of light-shielding slats 7 are vertically inclined as shown in FIG. 4A. Stand up to get closer. As a result, the plurality of light shielding slats 7 are closed, and there are almost no gaps between the light shielding slats 7 adjacent in the vertical direction, and the daylighting screen 11 is fully closed.
  • FIG. 6 is a diagram illustrating a state in the room where the daylighting apparatus 10 according to the first embodiment is installed, and illustrates a state during the daylighting.
  • the operation cord 19 shown in FIG. 1 is operated to reverse the rotation shaft 18 so that the plurality of light shielding slats 7 are inclined so that the inclination of the light shielding slats 7 approaches the horizontal as shown in FIG. 4B.
  • Each light shielding slat 7 is substantially parallel to sunlight, and a gap is formed between the light shielding slats 7 adjacent in the vertical direction, so that the daylighting screen 11 is fully opened.
  • the daylighting apparatus 10 When sunlight enters the daylighting apparatus 10 in this state, the light is first refracted upward by the daylighting units 15b of the daylighting function unit 15 on the light incident surface 11a.
  • the light refracted upward by the daylighting function unit 15 passes between the light shielding slats 7 arranged in the vertical direction and enters the light diffusion function unit 16.
  • the light that has entered the light diffusion function unit 16 is diffused isotropically or anisotropically and is emitted toward the indoor ceiling 1001 side from the light emission surface 11b shown in FIG.
  • the operation code 19 it is possible to switch between the light shielding state and the daylighting state of the daylighting screen 11, and it is possible to appropriately adjust the state between the light shielding state and the daylighting state.
  • desired brightness can be obtained by adjusting the overlapping state of the daylighting function unit 15 of the daylighting screen 11, the light shielding slats 7, and the light diffusion function unit 16.
  • the daylighting apparatus 10 is installed on the entire surface of the window, but the present invention is not limited to this, and it may be installed in a part. Since sunlight is incident on the upper side of the window, it is desirable to install the daylighting device 10 on the upper part of the window.
  • the daylighting apparatus 10 since the light emitted from the daylighting function unit 15 is configured to diffuse in the light diffusion function unit 16, glare can be suppressed. Since the light emitted from the daylighting apparatus 10 is reflected on the ceiling 1001 in the room, it can be used as illumination. Thereby, energy-saving lighting can be realized. Moreover, by taking in a lot of natural light indoors by the daylighting apparatus 10, it is possible to be exposed to sunlight while staying indoors, and the production of serotonin and vitamin D is promoted, leading to health promotion.
  • the operation code 19 is operated when it is desired to secure the brightness of the room while suppressing the glare of sunlight.
  • the light quantity can be adjusted by adjusting the inclination postures of the plurality of light shielding slats 7.
  • a transmissive member 15B having a high transmittance may be bonded to the outdoor side of the daylighting film 15A and integrated.
  • a transmissive member 15B having a high transmittance may be bonded to the outdoor side of the daylighting film 15A and integrated.
  • the transmissive member 15B by using, for example, a highly transparent fabric as the transmissive member 15B, the gloss unique to the resin constituting the daylighting film 15A can be suppressed, and the interior of the exterior of the daylighting apparatus 10 can be improved. Can do.
  • the color of the appearance of the daylighting apparatus 10 and the selectivity of the pattern are improved.
  • the daylighting screen 11 is in the unfolded state (not rolled up) to achieve the above-described daylighting state, thereby ensuring privacy while ensuring indoor brightness. Can be secured.
  • a heat shield sheet or the like by using a heat shield sheet or the like, a heat shield effect can be obtained, and the temperature rise in the room can be suppressed.
  • the basic configuration of the daylighting apparatus of the present embodiment shown below is substantially the same as that of the first embodiment, but is different in that it has three functions of a daylighting function, a light diffusion function, and a light transmission function. Therefore, in the following description, different configurations will be described in detail, and descriptions of common parts will be omitted.
  • the same reference numerals are given to the same components as those in FIGS.
  • FIG. 7 is a perspective view showing the overall configuration of the daylighting device 20 of the second embodiment.
  • FIG. 8A is a diagram illustrating a daylighting state of the daylighting screen 21 according to the second embodiment.
  • FIG. 8B is a diagram illustrating a transmission state of the daylighting screen 21 according to the second embodiment.
  • the daylighting device 20 of the present embodiment includes a daylighting screen (daylighting structure) 21 to which three optical characteristics are imparted, as shown in FIG.
  • the daylighting screen 21 includes a light transmission function unit 22 disposed on the light incident surface 11 a side, and a light emission surface that faces the light transmission function unit 22 in the light transmission direction.
  • the light diffusion function unit 16 disposed on the 11b side and the daylighting function unit 15 disposed between the light diffusion function unit 16 and the light transmission function unit 22 have three optical functions.
  • the light transmission function unit 22 and the light diffusion function unit 16 are opposed to each other through the daylighting function unit 15.
  • the light diffusion function unit 16 has the same configuration as that of the first embodiment described above.
  • the light transmission function part 22 is made of a transparent film having a light transmission property or a lace-like cloth.
  • the light transmission function unit 22 may be transparent, or may be colored as long as it can transmit light.
  • the light transmission function part 22 desirably has a light transmission of 90% or more.
  • the daylighting function unit 15 includes a plurality of daylighting slats (slats) 25.
  • FIG. 9A is a plan view showing the daylighting slat 25 of the second embodiment.
  • FIG. 9B is a cross-sectional view taken along line AA ′ of FIG. 9A.
  • the daylighting slat 25 includes a slat body 25A extending in one direction, and a daylighting sheet 25B provided on one surface side of the slat body 25A.
  • the slat body 25A is made of a long plate-like transparent base material having optical transparency. As illustrated in FIG.
  • the daylighting sheet 25B includes a base material 25a that has a rectangular shape in a cross section perpendicular to the longitudinal direction, a plurality of daylighting units 25b provided on one surface side of the base material 25a, and a plurality of daylighting units 25b. And a gap portion 25c provided between the two.
  • Examples of the material for the base material 25a and the daylighting unit 25b include the same materials as in the first embodiment.
  • the daylighting portions 25b constituting the daylighting slats 25 extend in the longitudinal direction (X direction) of the base material 25a and are arranged side by side in the short side direction (Y direction) of the base material 25a.
  • the daylighting unit 25b constitutes a prism body having a hexagonal cross section.
  • the shape of the daylighting portion 25b is not limited to a hexagonal cross section, and may be a pentagonal cross section, a multitaper shape, or a triangular cross section as shown in the first embodiment, and is not particularly limited.
  • Each of the daylighting slats 25 in the daylighting screen 21 may be arranged with the fine structure side on which the plurality of daylighting parts 25b are formed facing the light transmission function part 22 or the light diffusion function part 16 side. It may be.
  • the daylighting device 20 described above is installed such that the light transmission function unit 22 faces the outdoor side and the light diffusion function unit 16 side faces the indoor side.
  • the daylighting device 20 includes a light transmission function unit 22, a daylighting slat 25, and a light diffusion function unit 16 arranged in the light transmission direction, and is configured to be able to adjust the degree of overlap of each.
  • FIG. 10 is a diagram illustrating a state in the room where the daylighting device 20 of the second embodiment is installed, and illustrates a state during the daylighting.
  • the operation cord 19 shown in FIG. 7 is operated, and as shown in FIG. 8A, the plurality of daylighting slats 25 are erected so that their inclinations approach vertical.
  • the plurality of daylighting slats 25 are closed, and the daylighting screen 21 is fully closed. Since each daylighting slat 25 has a posture in which one side faces the window glass 1003, it can receive sunlight on the entire surface of the daylighting slat.
  • each daylighting slat 25 In this state, when sunlight enters the daylighting device 20, the light first passes through the light transmission function unit 22 and then enters each daylighting slat 25. The light incident on the daylighting slats 25 is refracted upward by each daylighting unit 25b. The light emitted from the daylighting slat 25 enters the light diffusion function unit 16, isotropically or anisotropically diffused, and is emitted from the light emission surface 11b toward the indoor ceiling 1001 shown in FIG. .
  • FIG. 11 is a diagram illustrating a state in the room where the daylighting apparatus according to the second embodiment is installed, and illustrates a state during transmission.
  • the operation cord 19 shown in FIG. 7 is operated, and the plurality of daylighting slats 25 are tilted so that the inclination of the plurality of daylighting slats 25 becomes horizontal as shown in FIG.
  • the daylighting slats 25 are substantially parallel to the sunlight, and a gap is formed between the daylighting slats 25 adjacent in the vertical direction, so that the daylighting screen 21 is fully opened.
  • the light transmitted through the light transmission function unit 22 passes between the daylighting slats 25 adjacent in the vertical direction and enters the light diffusion function unit 16.
  • the light incident on the light diffusion function unit 16 is diffused isotropically or anisotropically and is emitted toward the indoor floor 1002 from the light emission surface 11b shown in FIG.
  • the daylighting state and the transmission state of the daylighting screen 21 can be switched.
  • the desired brightness can be obtained by adjusting the degree of overlap.
  • the daylighting device 20 of the present embodiment since the light emitted from the daylighting slat 25 is diffused in the light diffusion function unit 16 and then emitted into the room, glare can be suppressed. Since the light emitted from the daylighting device 20 is reflected by the ceiling 1001 in the room, it can be used as illumination. Thereby, energy-saving lighting can be realized.
  • the daylighting apparatus 20 allows a large amount of natural light to be taken into the room so that it can be exposed to sunlight while in the room, and the production of serotonin and vitamin D is promoted, leading to health promotion.
  • the daylighting apparatus 20 of the present embodiment does not have a light shielding function, the brightness of the room can always be ensured.
  • the brightness of the room can be adjusted while suppressing glare.
  • FIG. 12 is a perspective view showing a modification of the daylighting screen in the second embodiment.
  • the light transmission function unit 22 may be a band-shaped member 22 ⁇ / b> A that connects the plurality of daylighting slats 25 in the vertical direction with the longitudinal direction of the daylighting slats 25 oriented in the horizontal direction. Therefore, the light incident surface 11a side of the daylighting screen 21A is open.
  • the light transmission function part 22 a thing like the string which has a light transmittance is employable, for example.
  • a pair of light transmission function portions 22 and 22 are provided, and one light transmission function portion 22 is provided on each of both end sides of the plurality of daylighting slats 25.
  • the pair of light transmission function units 22, 22 are arranged at intervals in the longitudinal direction of the daylighting slat 25, but the number and arrangement interval of the light transmission function units 22 are not limited to those illustrated. .
  • the cost of the material can be suppressed, and the sunlight transmitted through the window glass 1003 can be directly incident on the daylighting slat 25, so that more light can be taken into the room. Can do.
  • the daylighting device 30 according to the third embodiment of the present invention will be described.
  • the basic configuration of the daylighting device 30 of the present embodiment described below is substantially the same as that of the first embodiment, but differs in that it has four functions of a daylighting function, a light diffusion function, a light transmission function, and a light blocking function. Therefore, in the following description, different configurations will be described in detail, and descriptions of common parts will be omitted.
  • the same reference numerals are given to the same components as those in FIGS.
  • FIG. 13 is a perspective view showing the overall configuration of the daylighting device 30 of the third embodiment.
  • FIG. 14A is a diagram illustrating a state of upper daylighting and lower order light shielding of the daylighting screen 31 of the third embodiment.
  • FIG. 14B is a diagram illustrating a transmission state of the daylighting screen 31 according to the third embodiment.
  • the daylighting device 30 of the present embodiment includes a daylighting screen (daylighting structure) 31 provided with four optical characteristics, as shown in FIG.
  • the daylighting screen 31 includes a light transmission function unit 22 disposed on the light incident surface 11 a side, and a light emission surface that faces the light transmission function unit 22 in the light transmission direction.
  • a light diffusion function unit 16 disposed on the 11b side, and a daylighting function unit 15 and a light shielding function unit 17 disposed between the light diffusion function unit 16 and the light transmission function unit 22, and four optical functions. It has.
  • the daylighting function unit 15 and the light blocking function unit 17 are arranged side by side in the vertical direction of the daylighting screen 31.
  • the daylighting function unit 15 is located on the upper side of the daylighting screen 31 and has a plurality of daylighting slats (first slats) 25.
  • the light shielding function unit 17 is located on the lower side of the daylighting screen 31 and includes a plurality of light shielding slats (second slats) 7.
  • Each light shielding slat 7 in the light diffusion function unit 16 and the light shielding function unit 17 has the same configuration as that of the first embodiment described above.
  • the daylighting slats 25 and the light transmission functioning part 22 in the daylighting functioning part 15 are the same as those of the second embodiment described above.
  • each daylighting slat 25 in the daylighting screen 31 may be arranged with the fine structure side on which a plurality of daylighting parts (not shown) are formed facing the light transmission function part 22 or light diffusion. You may arrange
  • the daylighting device 30 described above is installed such that the light transmission function unit 22 faces the outdoor side and the light diffusion function unit 16 side faces the indoor side.
  • the daylighting device 30 includes a light transmission function unit 22, a daylighting slat 25, a light shielding slat 7, and a light diffusion function unit 16 arranged in the light transmission direction, and is configured to be able to adjust the degree of overlap of each.
  • the plurality of daylighting slats 25 are arranged on the upper side and the plurality of light shielding slats 7 are arranged on the lower side of the daylighting screen 31, both the daylighting function and the light shielding function can be obtained simultaneously. .
  • FIG. 15 is a diagram illustrating a state in the room where the daylighting device 30 according to the third embodiment is installed, and is a diagram illustrating a state when the upper daylighting and the lower order light shielding are performed.
  • the operation code 19 shown in FIG. 13 is operated so that the slopes of the plurality of daylighting slats 25 and the plurality of light-shielding slats 7 approach each other as shown in FIG. 14A. Stand up. Thereby, the plurality of daylighting slats 25 and the plurality of light shielding slats 7 are closed, and the daylighting screen 31 is fully closed.
  • each daylighting slat 25 Of the sunlight that has entered the daylighting device 30 in this state, light that has entered the upper side of the daylighting screen 31 passes through the light transmission function unit 22 and then enters each daylighting slat 25.
  • the light incident on each daylighting slat 25 is refracted upward by a daylighting unit (not shown).
  • Light emitted from each daylighting slat 25 enters the light diffusion function unit 16, isotropically or anisotropically diffused, and travels from the upper side of the light exit surface 11b toward the indoor ceiling 1001 shown in FIG. It is injected.
  • the daylighting apparatus 30 of the present embodiment only the light collected on the upper side of the daylighting screen 31 can be taken into the room, and the sunlight can be shielded on the lower side of the daylighting screen 31.
  • FIG. 16 is a diagram illustrating a state in the room where the daylighting device 30 according to the third embodiment is installed, and illustrates a state during transmission.
  • the operation cord 19 shown in FIG. 13 is operated to tilt the plurality of daylighting slats 25 and the plurality of light shielding slats 7 so as to approach the horizontal, as shown in FIGS. 14A and 14B.
  • Each daylighting slat 25 and each light-shielding slat 7 are substantially parallel to sunlight and adjacent to each other in the vertical direction, a gap is formed between the daylighting slats 25, and the daylighting screen 21 is fully opened.
  • the light transmitted through the light transmission function unit 22 is transmitted between the daylighting slats 25 and the light shielding slats 7 adjacent in the vertical direction and enters the light diffusion function unit 16.
  • the light incident on the light diffusion function unit 16 is diffused isotropically or anisotropically and emitted toward the indoor floor 1002 from the light emission surface 11b shown in FIG.
  • the daylighting apparatus 30 of the present embodiment by operating the operation code 19, it is possible to appropriately switch between the upper lighting and lower light shielding states on the lighting screen 31 and the total transmission state. Moreover, desired brightness can be obtained by appropriately adjusting the degree of overlap in the transmission direction of the light transmission function unit 22, each daylighting slat 25, each light shielding slat 7, and the light diffusion function unit 16.
  • the sunlight that has entered the upper part of the daylighting screen 31 is refracted by the daylighting slats 25 and can be emitted toward the ceiling by making the daylighting screen 31 fully closed.
  • sunlight incident on the lower side of the daylighting screen 31 can be shielded by the light shielding slat 7.
  • the light introduced into the room can be used as illumination while suppressing light incident on the room, and energy-saving illumination can be realized while adjusting the indoor environment.
  • the daylighting screen 31 by making the daylighting screen 31 fully open, a large amount of natural light can be taken into the room, and sunlight can be taken while in the room. Further, since the light incident on the room is diffused in the light diffusion function unit 16, glare is suppressed.
  • a daylighting device 40 according to a fourth embodiment of the present invention will be described.
  • the basic configuration of the daylighting device 40 of the present embodiment described below is substantially the same as that of the first embodiment, but differs in that it has four functions of a daylighting function, a light diffusion function, a light transmission function, and a light blocking function. Therefore, in the following description, different configurations will be described in detail, and descriptions of common parts will be omitted.
  • the same reference numerals are given to the same components as those in FIGS.
  • FIG. 17 is a perspective view showing the overall configuration of the daylighting device 40 of the fourth embodiment.
  • FIG. 18A is a diagram illustrating a light blocking state of the daylighting screen 41 according to the fourth embodiment.
  • FIG. 18B is a diagram illustrating a state of upper daylighting and lower order transmission of the daylighting screen 41 of the fourth embodiment.
  • the daylighting device 40 of this embodiment includes a daylighting screen 41 (daylighting structure) 41 to which four optical characteristics are given.
  • the daylighting screen 41 includes a daylighting function unit 15 provided on the upper side of the light incident surface 11a and a light transmission function unit 22 provided on the lower side of the light emission surface 11b.
  • a light diffusion function unit 16 disposed on the light exit surface 11b side.
  • it has the light-shielding function part 17 arrange
  • the light shielding function unit 17 includes a plurality of light shielding slats (slats) 7.
  • the light incident surface 11 a having a daylighting function and a light transmission function and the light emitting surface 11 b having a light diffusion function are opposed to each other with a plurality of light shielding slats 7 interposed therebetween.
  • the daylighting device 40 described above is installed such that the daylighting function unit 15 and the light transmission function unit 22 face the outdoor side, and the light diffusion function unit 16 side faces the indoor side.
  • the daylighting device 40 is configured such that the daylighting function unit 15, the light transmission function unit 22, the light shielding slat 7, and the light diffusion function unit 16 are arranged in the light transmission direction, and the degree of overlap of each can be adjusted.
  • the daylighting screen 41 is provided with the daylighting function unit 15 on the upper side and the light transmission function unit 22 on the lower side, so that both the daylighting function and the transmission function can be obtained simultaneously.
  • FIG. 19 is a diagram illustrating a state in the room where the daylighting device 40 according to the fourth embodiment is installed, and illustrates a state when light is blocked.
  • the operation code 19 shown in FIG. 17 is operated, and as shown in FIG. 18A, the plurality of light-shielding slats are erected so as to approach the vertical. Accordingly, the plurality of light shielding slats 7 are closed, and the daylighting screen 41 is fully closed.
  • FIG. 20 is a diagram illustrating a state of the room in which the daylighting device 40 of the fourth embodiment is installed, and is a diagram illustrating a state in the upper daylighting and lower order transmission.
  • the operation cord 19 is operated to tilt the plurality of light shielding slats 7 so as to approach the horizontal as shown in FIG. 18B.
  • Each light shielding slat 7 is substantially parallel to sunlight, a gap is formed between the light shielding slats 7 adjacent in the vertical direction, and the daylighting screen 41 is fully opened.
  • the light incident on the upper side of the light incident surface 11a is refracted upward by the daylighting function unit 15.
  • the light refracted upward in the daylighting function unit 15 passes between the light shielding slats 7 arranged in the vertical direction and enters the light diffusion function unit 16.
  • the light incident on the light diffusion function unit 16 is diffused isotropically or anisotropically and is emitted from the light emission surface 11b shown in FIG. 20 toward the indoor ceiling 1001.
  • the light incident on the lower side of the light incident surface 11a passes through the light transmission function unit 22, passes through the light shielding slats 7 arranged in the vertical direction, and enters the light diffusion function unit 16.
  • the light that has entered the light diffusion function unit 16 is diffused isotropically or anisotropically and is emitted from the light emission surface 11b shown in FIG. 20 toward the indoor floor 1002.
  • the light collected on the upper side of the daylighting screen 41 can be introduced toward the indoor ceiling 1001, and the light transmitted through the lower side of the daylighting screen 41 is directed to the indoor floor 1002. Can be adopted. Since the light incident on the room is diffused in the light diffusion function unit 16, glare is suppressed.
  • the lighting device 40 of the present embodiment by operating the operation code 19, it is possible to appropriately switch between the upper lighting and lower transmission states of the lighting screen 41 and the total light blocking state. Moreover, desired brightness can be obtained by appropriately adjusting the overlapping of the daylighting function unit 15 and the light transmission function unit 22, the light shielding slat 7, and the light diffusion function unit 16 in the transmission direction.
  • the daylight incident on the room can be shielded by setting the daylighting screen 41 to the fully closed state, and partly by setting the daylighting screen 41 to the fully open state.
  • a daylighting device 50 according to a fifth embodiment of the present invention will be described.
  • the basic configuration of the daylighting device 50 of the present embodiment shown below is substantially the same as that of the first embodiment, but has a configuration including three functions of a daylighting function, a light diffusion function, and a light blocking function. Therefore, in the following description, different configurations will be described in detail, and descriptions of common parts will be omitted. In each drawing used for the description, the same reference numerals are given to the same components as those in FIGS.
  • FIG. 21 is a perspective view showing the overall configuration of the daylighting device 50 of the fifth embodiment.
  • FIG. 22 is a side view showing the overall configuration of the daylighting device 50 of the fifth embodiment.
  • FIG. 23 is a diagram mainly showing the configuration of the winding unit 53 in the fifth embodiment.
  • FIG. 24 is a diagram illustrating a storage state of the daylighting roll screen 51 according to the fifth embodiment.
  • the daylighting device 50 of the present embodiment includes an annular daylighting roll screen (daylighting structure) 51 and a support mechanism 52 that supports the daylighting roll screen 51.
  • the daylighting roll screen 51 includes a daylighting function area (first optical function area) 57, a light diffusion function area (second optical function area) 58, and a light shielding function area (third optical function area) 59 in the circumferential direction. Have. Of these three optical function areas, the ratio of the light shielding function area 59 to the entire daylighting roll screen 51 is larger than the ratio of the other optical function areas to the entire screen. Specifically, the light shielding function area 59 occupies a half area of the daylighting roll screen 51. The daylighting function unit 15 and the light diffusion function unit 16 occupy the remaining half of the area. The daylighting function unit 15 and the light diffusing function unit 16 have the same ratio of 1: 1, and each occupies a quarter of the entire screen.
  • the support mechanism 52 can wind up the daylighting roll screen 51 together with a pair of support rollers 52 ⁇ / b> A and 52 ⁇ / b> B that are spaced apart in the vertical direction and arranged in parallel with each other, and the upper support roller 52 ⁇ / b> A. And a winding unit 53.
  • a daylighting roll screen 51 is wound around the pair of support rollers 52A and 52B.
  • the winding unit 53 includes a winding shaft 54 disposed in parallel with the pair of support rollers 52A and 52B, and an operation cord 55 and a pull cord 56 connected to the winding shaft 54. And a connecting portion 49 for connecting the daylighting roll screen 51 to the winding shaft 54.
  • the take-up shaft 54 is provided with a central shaft 54 a that can be rotated separately from the take-up shaft 54.
  • An operation cord 55 is connected to the central shaft 54 a and a daylighting roll screen 51 is connected via a connection portion 49.
  • the central shaft 54a is configured to rotate separately from the winding shaft.
  • the connecting portion 49 is sent out in the circumferential direction, and the upper support roller 52A and the lower The side support roller 52B rotates simultaneously.
  • the daylighting roll screen 51 is sent out in the circumferential direction.
  • the lower support roller 52 ⁇ / b> B also functions as a feeding stopper for the daylighting roll screen 51.
  • the winding unit 53 of the present embodiment has the same mechanism as that of a general pre-coded roll screen, and a spring is built in the winding shaft 54. For this reason, the take-up shaft 54 rotates by pulling the pull cord, and as shown in FIG. 24, the daylighting roll screen 51 is wound along the outer periphery of the take-up shaft 54 together with the upper support roller 52A shown in FIG. Taken.
  • the diameter of the upper support roller 52A is smaller than the diameter of the lower support roller 52B. Therefore, when accommodating the daylighting roll screen 51, the daylighting roll screen 51 can be smoothly wound up with the upper support roller 52A.
  • the daylighting device 50 described above rotates the daylighting roll screen 51 in the circumferential direction thereof, thereby causing the daylighting function area 57, the light diffusion function area 58, and the light shielding function.
  • the overlapping state of the areas arranged in the light transmission direction can be adjusted.
  • the region of each region arranged in the light transmission direction depends on which position the rotation position of the daylighting roll screen 51 is stopped. The degree of overlap can be adjusted, and light incident on the room can be dimmed.
  • FIG. 25A is a perspective view showing the overall configuration of the daylighting device 50 of the fifth embodiment.
  • FIG. 25B is a cross-sectional view showing the overall configuration of the daylighting device 50 of the fifth embodiment.
  • the daylighting roll screen 51 is rotated so that the substantially entire surface of the functional area 58 overlaps in the light transmission direction and half of the light shielding functional area 59 overlaps in the light transmission direction on the lower side.
  • the daylighting function area 57 is located on the upper side and the light shielding function area 59 is located on the lower side.
  • the light diffusion function unit 16 is located on the upper side and the light shielding function region 59 is located on the lower side.
  • the light incident on the upper side of the daylighting roll screen 51 is refracted upward in the daylighting function area 57 as shown in FIG. It is diffused at 58 and injected toward the ceiling of the room.
  • the light incident on the lower side of the daylighting roll screen 51 is blocked by the light blocking function area 59. For this reason, sunlight is not emitted toward the indoor floor.
  • the daylighting apparatus 50 of this embodiment only the light collected on the upper side of the daylighting roll screen 51 can be taken into the room, and sunlight can be shielded on the lower side of the daylighting roll screen 51.
  • FIG. 26A is a perspective view showing the overall configuration of the daylighting device 50 of the fifth embodiment.
  • FIG. 26B is a cross-sectional view showing the overall configuration of the daylighting device 50 of the fifth embodiment.
  • the daylighting roll screen In the total light shielding state, as shown in FIG. 26A, the daylighting roll screen is configured so that the entire light exit surface 51b of the daylighting roll screen 51 becomes the light shielding function area 59 by operating the operation code 55 shown in FIG. Rotate 51.
  • the daylighting functional area 57 and the light diffusion functional area 58 are located on the light incident surface 51a.
  • the light incident on the light incident surface 51 a of the daylighting roll screen 51 passes through either the light diffusion function area 58 or the daylighting function area 57 and is then substantially shielded from light in the light shielding function area 59. For this reason, sunlight is not emitted indoors.
  • the daylighting apparatus 50 of this embodiment by operating the operation code 55 and rotating the daylighting roll screen 51, the upper daylighting and lower light shielding states in the daylighting roll screen 51 and the total transmission state can be appropriately switched. it can. Moreover, desired brightness can be obtained by appropriately adjusting the overlapping state of the daylighting function area 57, the light diffusion function area 58, and the light shielding function area 59 in the transmission direction.
  • a half area of the entire daylighting roll screen 51 is the light shielding function area 59, but may be configured to occupy a half or more area. Also in this case, the daylighting function area 57 and the light diffusion function area 58 have a ratio of 1: 1.
  • FIGS. 27A and 27B are diagrams showing the overall configuration of the daylighting device 50 according to the fifth embodiment.
  • FIG. 27A shows a partial daylighting state
  • FIG. 27B shows a total light blocking state.
  • the light shielding functional area 59 occupies an area of 1/2 or more and 3/4 or less in the entire daylighting roll screen 51.
  • the daylighting function area 57 and the light diffusion function area 58 exist at a ratio of 1: 1.
  • the light shielding function area 59 occupies a large proportion, when it is desired to shield the room, it is possible to switch to the light shielding state by slightly rotating the daylighting roll screen 51A.
  • a daylighting device 60 according to a sixth embodiment of the present invention will be described.
  • the basic configuration of the daylighting device 60 of the present embodiment shown below is substantially the same as that of the first embodiment, but has three functions of a daylighting function, a light diffusion function, and a light blocking function, and the region having the light diffusion function is the other It differs from the previous embodiment in that it is larger than the area having the function. Therefore, in the following description, different configurations will be described in detail, and descriptions of common parts will be omitted. In each drawing used for the description, the same reference numerals are given to the same components as those in FIGS. 21 to 26B.
  • FIG. 28 is a cross-sectional view showing the daylighting device 60 of the sixth embodiment.
  • the daylighting device 60 of the present embodiment includes a daylighting roll screen (daylighting structure) 61 having three optical functions: a daylighting function area 57, a light diffusion function area 58, and a light shielding function area 59.
  • the daylighting roll screen 61 of this embodiment has a configuration in which the light diffusion function region 58 is larger than the region having other functions among the daylighting function region 57, the light diffusion function region 58, and the light shielding function region 59.
  • the light diffusion function area 58 occupies a half area of the entire screen, and the daylighting function area 57 and the light shielding function area 59 occupy the remaining half area.
  • the daylighting functional area 57 and the light shielding functional area 59 are set to have an equal ratio of 1: 1, and each occupies a quarter of the entire screen.
  • the daylighting roll screen 61 is rotated to dispose the light shielding function area 59 on the upper side of the window and the light diffusion function area 58 on the lower side of the window.
  • Half of the region 58 is overlapped in the light transmission direction.
  • FIG. 29 is a cross-sectional view showing the daylighting device 60 of the sixth embodiment, and shows a state of upper daylighting and lower order light shielding.
  • the daylighting roll screen 61 is rotated to arrange the daylighting function area 57 on the upper side of the window and the light shielding function area 59 on the lower side of the window.
  • the diffusion function regions 58 are opposed to each other in the light transmission direction.
  • the light incident from the upper side of the window is refracted upward in the daylighting function area 57 and then diffused by the light diffusion function area 58 in the room. It is injected towards the ceiling. Further, light incident from the lower side of the window is blocked by the light blocking function region 59, and the indoor floor side can be shaded. Thereby, a person in the room can take outside light into the room and illuminate the ceiling without feeling dazzling. Also, indoor privacy can be secured.
  • FIG. 30 is a cross-sectional view showing the daylighting device 60 of the sixth embodiment, and shows a state of upper transmission and lower light shielding. As shown in FIG. 30, the daylighting roll screen 61 is rotated so that the light diffusion function area 58 is disposed on the upper side of the window, and the light shielding function area 59 is disposed on the lower side. The two are overlapped in the light transmission direction.
  • the light incident from the upper side of the window is emitted toward the indoor floor while being diffused in the light diffusion function region 58 overlapping in the light transmission direction. Is done.
  • Light incident from the lower side of the window passes through the daylighting function area 57 but is shielded in the light shielding function area 59. Thereby, since light can be incident from the upper side of the window, it is possible to brightly illuminate a region slightly away from the window while ensuring indoor privacy.
  • FIG. 31 is a cross-sectional view showing a configuration of a modified example of the daylighting roll screen 62.
  • the ratio of the daylighting function area 57, the light diffusion function area 58, and the light shielding function area 59 to the entire daylighting roll screen 62 is different.
  • the ratio of the entire daylighting roll screen 62 in the order of the daylighting function area 57 ⁇ light shielding function area 59 ⁇ light diffusion function area 58 is increased.
  • the light diffusion function area 58 occupies a half area of the entire screen.
  • the light shielding function area 59 occupies an area of 1/4 to 1/2 of the entire screen.
  • the daylighting roll screen 62 is rotated so that the light shielding function area 59 is disposed on the upper side of the window, and the light diffusion function area 58 is disposed on the lower side, and a part of the light diffusion function area 58 is disposed.
  • the regions are overlapped in the light transmission direction.
  • FIG. 32 is a cross-sectional view showing a daylighting state of the daylighting roll screen 62.
  • the daylighting roll screen 62 is rotated so that the daylighting function area 57 is arranged on the upper side of the window, and the light shielding function area 59 is arranged on the lower side.
  • the light diffusion function region 58 is overlapped in the light transmission direction.
  • the sunlight incident on the daylighting roll screen 62 in this state the light incident from the upper side of the window is refracted upward in the daylighting functional area 57 and then diffused in the light diffusion functional area 58 to the indoor ceiling. It is injected towards.
  • Light incident from the lower side of the window is shielded in the light shielding function area 59. Thereby, a ceiling can be illuminated brightly, ensuring indoor privacy.
  • FIG. 33 is a cross-sectional view showing a transmission state of the daylighting roll screen 62.
  • the daylighting roll screen 62 is rotated to arrange the light diffusion function area 58 on the upper side of the window, and the daylighting function area 57 is arranged on the lower side. A part of 58 is overlapped in the light transmission direction.
  • a lighting device 70 according to a seventh embodiment of the present invention will be described.
  • the basic configuration of the daylighting apparatus 70 of the present embodiment shown below is substantially the same as that of the first embodiment, but differs in that it has two functions of a daylighting function and a light diffusion function. Therefore, in the following description, different configurations will be described in detail, and descriptions of common parts will be omitted.
  • the same reference numerals are given to the same components as those in FIGS. 21 to 26B.
  • FIG. 34 is a perspective view showing the overall configuration of the daylighting device 70 of the seventh embodiment, and shows a state of upper daylighting and lower order transmission.
  • the daylighting device 70 of the present embodiment includes a daylighting roll screen (daylighting structure) 71 having two optical functions of a daylighting function area 57 and a light diffusion function area 58.
  • the daylighting roll screen 71 the light diffusing functional area 58 occupies an area of 1 ⁇ 2 or more of the entire screen, and occupies an area of 3/4 here.
  • the daylighting function area 57 occupies the remaining 1 ⁇ 4 area.
  • the daylighting roll screen 71 is rotated to arrange the daylighting function area 57 on the upper side of the window and the light diffusion function area 58 on the lower side of the window.
  • a part of the region 58 overlaps in the light transmission direction, and a part of the light diffusion function region 58 also overlaps in the light transmission function region 57 in the light transmission direction.
  • the light incident from the upper side of the window is refracted upward in the daylighting function area 57 and then diffused by the light diffusion function area 58 in the room. It is injected towards the ceiling.
  • light incident from the lower side of the window is diffused in the light diffusion function region 58 overlapping in the light transmission direction and emitted toward the indoor floor.
  • FIG. 35 is a perspective view showing the overall configuration of the daylighting apparatus 70 of the seventh embodiment, and shows a state of upper daylighting and lower order transmission.
  • the daylighting roll screen 71 is rotated to arrange a light diffusion function region 58 on the upper side of the window and a daylighting function region 57 on the lower side of the window.
  • a part of the area 58 is overlapped in the light transmission direction, and a part of the light diffusion function area 58 is overlapped in the light transmission function area 57 in the light transmission direction.
  • the light diffusion function area 58 occupies an area of 1 ⁇ 2 or more of the entire screen and the daylighting function area 57 occupies the remaining area.
  • the daylighting roll screens of the following modifications 1 and 2 the light diffusion function area 58 occupies more than half of the entire area, and the daylighting function area 57 occupies the remaining area.
  • FIG. 36 and 37 are cross-sectional views illustrating the configuration of the daylighting roll screen (daylighting structure) 72 according to the first modification.
  • the daylighting roll screen 72 shown in FIG. 36 and FIG. 37 1/8 of the entire screen is the daylighting functional area 57 and 7/8 is the light diffusion functional area 58.
  • this configuration a part of sunlight incident on the window can be collected toward the ceiling, and the remaining much light can be emitted toward the indoor floor in a diffused state. Thereby, it is possible to get more light while staying indoors.
  • Modification 2 38 and 39 are cross-sectional views illustrating the configuration of a daylighting roll screen (daylighting structure) 73 according to the second modification.
  • the daylighting roll screen 73 shown in FIGS. 38 and 39 the light diffusion function area 58 occupies 2/3 or more of the entire area, and the daylighting function area 57 occupies the remaining 1/3 area.
  • One embodiment of the present invention can be applied to a daylighting apparatus or the like that needs to have an energy saving effect and be excellent in interior properties.
  • Light-shielding slats (slats) 10, 20, 30, 40, 50, 60, 70 ... Daylighting devices 11, 21, 31 ... Daylighting screens (lighting structures), 12, 52 ... Support mechanisms, 25 ... Daylighting slats (Slats), 51, 61, 62, 71, 72, 73 ... daylighting roll screen (lighting structure), 52A, 52B ... support rollers, 53 ... winding part

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Abstract

Selon un mode de réalisation, la présente invention concerne un dispositif d'éclairage naturel pourvu : d'une structure d'éclairage naturel qui comporte au moins une première région de fonction optique ayant une fonction d'éclairage naturel et une seconde région de fonction optique ayant au moins l'une parmi une fonction de diffusion de lumière, une fonction de protection contre la lumière, et une fonction de transmission de lumière, la même région de fonction optique ou différentes régions de fonction optique se chevauchant par rapport à la direction de transmission de lumière ; et d'un mécanisme de support qui commute des fonctions grâce au changement de la combinaison de chevauchement parmi la même région de fonction optique ou différentes régions de fonction optique, et supporte la structure d'éclairage naturel.
PCT/JP2018/014392 2017-04-05 2018-04-04 Dispositif d'éclairage naturel WO2018186435A1 (fr)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS546337A (en) * 1977-06-15 1979-01-18 Risaachi Ando Dezain Kenkiyuus Shade
JP2006063768A (ja) * 2004-08-24 2006-03-09 Harumi Yagi 無端状シートブラインド
US20120057350A1 (en) * 2010-09-02 2012-03-08 3M Innovative Properties Company Switchable light-duct extraction
US20140138037A1 (en) * 2012-11-19 2014-05-22 Hunter Douglas Inc. Covering for architectural openings with coordinated vane sets
WO2016002761A1 (fr) * 2014-07-01 2016-01-07 シャープ株式会社 Dispositif d'éclairage naturel

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS546337A (en) * 1977-06-15 1979-01-18 Risaachi Ando Dezain Kenkiyuus Shade
JP2006063768A (ja) * 2004-08-24 2006-03-09 Harumi Yagi 無端状シートブラインド
US20120057350A1 (en) * 2010-09-02 2012-03-08 3M Innovative Properties Company Switchable light-duct extraction
US20140138037A1 (en) * 2012-11-19 2014-05-22 Hunter Douglas Inc. Covering for architectural openings with coordinated vane sets
WO2016002761A1 (fr) * 2014-07-01 2016-01-07 シャープ株式会社 Dispositif d'éclairage naturel

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