JP5946805B2 - Daylighting material and opening structure - Google Patents

Description

  The present invention relates to a daylighting surface material that is provided at an opening portion of a lighting window or the like of a building to improve a feeling of brightness in the room and obtain a blinding effect, and a structure of an opening portion of a building using the daylighting surface material.

In general, a diffuser plate such as ground glass or a translucent plate such as transparent glass is used as a face material for daylighting of windows.
As a lighting surface material devised to guide sunlight into the interior of the room, one surface of a light-transmitting plate such as a window plate is covered with a prism sheet (for example, Patent Document 1), or a plurality of single prisms are light-transmitting plates. One of them is integrally formed on one side (for example, Patent Document 2), or one in which an external light capturing plate having a prism function is attached to one side of a light-transmitting plate (for example, Patent Document 3).

JP 11-280350 A Japanese Patent No. 4887092 JP 2009-228222 A

  In a building built in a narrow area, even if you try to take outdoor light indoors through the windows on the wall, you can not take sunlight indoors unless the sun is at a high position. Moreover, even if it is taken in from a high position, since the outdoor light does not reach the walls and ceiling, which are important for the sense of brightness in the room, it is dark and the room feels dark. In frosted glass, natural light diffuses and enters the room, but most is facing downward.

  In the case where the above described prism sheet, prism processing section, or a light transmitting plate having a prism function is provided on the light transmitting plate, it is possible to guide sunlight to the back of the room, but the indoor state is from the outside The blindfold effect that prevents recognition is low.

  As a daylighting surface material that achieves both a blinding effect and daylighting, a glass plate that has been subjected to embossing, tapestry processing, reflection film processing, etc. has been generally known. For glass plates that have been embossed or tapestry processed, the interior of the room (such as the structure of the room and the person) is blurred with a pattern created by processing the glass plate while maintaining a high light transmittance of about 80 to 90%. However, the color and outline cannot be concealed, and the blindfold effect is somewhat weak. In addition, when a glass plate is processed with a reflective film, the interior is very difficult to see and the blinding effect is improved, but the amount of light collected is also reduced. In addition, when the room is brighter, the room can be easily seen from the outside. Therefore, there is a problem that the blinding effect is diminished due to the balance of the brightness between the room and the outside.

  An object of the present invention is to provide a lighting surface material that is provided at an opening of a lighting window or the like of a building to improve a sense of brightness in the room and obtain a blinding effect, and a structure of an opening of a building using this lighting surface material. Is to provide.

The daylighting material of the present invention is a multi-layered daylighting material provided at the opening of a building to block the opening and allow light outside the room to enter the room, and is a non-diffusible transparent plate provided outside the room. An outdoor side plate provided with a transparent refractive material layer superimposed on a surface on the indoor side, and an indoor side plate provided on the indoor side with an air layer separated from the outdoor side plate to diffuse transmitted light, The refractive material layer of the outdoor side plate has a shape in which linearly extending prism portions are arranged in parallel, and each prism portion has an acute angle whose corner at the tip is narrower than each corner on both sides of the base end, The front end of each prism portion faces the indoor side, and the indoor side plate is a template glass whose inner or outer surface is an uneven portion for diffusing transmitted light, and the lighting surface material is interposed So, the image of an object in the room cannot be recognized from outside. It is supposed to appear in a disturbed image to.
The opening of the building is an outer wall, various walls such as a partition wall and a balcony waist wall, a window opening provided on a roof surface and the like, an entrance / exit, and the like.

According to this configuration, when light from the outside of the room is taken into the room through an opening such as a window on the outer wall of the building, incident light at various angles is incident on the outside plate due to the refractive action of the refractive material layer. Disturbing the angular order and emitting in different angular directions. As a result, the image of the object outside the room appears to be a completely disturbed image from the inside of the room, and the image of the object inside the room also appears to be a completely disturbed image from the outside. The blindfold effect that cannot be recognized is demonstrated. In addition, since the incident light that has passed through the outdoor side plate is diffused by the indoor side plate, the image is further disturbed and the blinding effect is increased.
On the other hand, natural light incident from the outside can be sufficiently taken into the room by the refraction action at the outdoor side plate and the light diffusion action of the indoor side plate. Thereby, with this daylighting surface material, it is possible to obtain a daylighting effect that improves the sense of brightness in the room and to obtain a blinding effect.

In the present invention, the indoor side plate may be formed by providing a heat ray shielding film on the air layer side surface and forming the indoor side surface as an uneven surface for diffusing transmitted light.
In the case of this configuration, heat rays contained in natural light incident from the outside can be cut by the heat ray shielding film, so that even in the summertime when the sun is strong, the heat rays can be effectively blocked to reduce the temperature rise in the room. it can.

In the present invention, the outdoor plate may be formed by bonding the transparent plate and the refractive material layer with an adhesive material including a UV cut material, or using a material including a UV cut material on the transparent plate.
In this configuration, since the ultraviolet rays contained in the incident natural light can be cut by the UV cut material in the adhesive material or the UV cut material contained in the transparent plate, the refractive material layer is made of a resin material. However, it is possible to prevent the ultraviolet ray deterioration from occurring in the refractive material layer.

  In the opening structure of the present invention, the lighting surface material having any one of the above-described configurations of the present invention is provided in the opening of a building. According to this opening structure, as described above with respect to the daylighting surface material of the present invention, it is possible to obtain a daylighting effect that improves the sense of brightness in the room and to obtain a blinding effect.

The daylighting material of the present invention is a multi-layered daylighting material provided at the opening of a building to block the opening and allow light outside the room to enter the room, and is a non-diffusible transparent plate provided outside the room. An outdoor side plate provided with a transparent refractive material layer superimposed on a surface on the indoor side, and an indoor side plate provided on the indoor side with an air layer separated from the outdoor side plate to diffuse transmitted light, The refractive material layer of the outdoor side plate has a shape in which linearly extending prism portions are arranged in parallel, and each prism portion has an acute angle whose corner at the tip is narrower than each corner on both sides of the base end, The front end of each prism portion faces the indoor side, and the indoor side plate is a template glass whose inner or outer surface is an uneven portion for diffusing transmitted light, and the lighting surface material is interposed So, the image of an object in the room cannot be recognized from outside. Because it is assumed that appear a disturbed image, it is possible with the lighting effect of improving the brightness sensation in the room is obtained, also obtained blindfold effect. The opening structure of the building according to the present invention is provided with the daylighting material of the present invention at the opening of the building, so that it is possible to obtain a daylighting effect for improving the brightness of the room and to obtain a blinding effect.

It is sectional drawing which fractures | ruptures and shows a part of opening part of the building using the lighting surface material concerning one Embodiment of this invention. It is a partial expanded sectional view of the same lighting surface material. It is explanatory drawing which shows the photorefractive effect by the outdoor side plate in the said lighting surface material. It is explanatory drawing which shows the light refraction / transmission effect by a non-diffusible transparent plate. It is explanatory drawing of an example of the apparatus for verifying the blinding effect of the lighting surface material. (A) is an image which shows the verification result of the blindfold effect of a template glass, (B) is an image which shows the verification result of the blindfold effect of the lighting surface material of this embodiment, respectively. (A) is an image showing the daylighting effect when the template glass is used as a daylighting surface material, and (B) is an image showing the daylighting effect of the daylighting surface material of this embodiment. It is a partial expanded sectional view of the lighting surface material concerning other embodiment of this invention. It is a partial expanded sectional view of the daylighting surface material concerning further another embodiment of this invention.

  An embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a sectional view showing an opening of a building using the daylighting material. The daylighting surface material 1 is a surface material that is provided in an opening 11 of a building and closes the opening 11 to take light outside the room into the room. In this example, the daylighting face material 1 is mounted in a window door frame 10 to form a window door 9. This window door 9 is provided in the opening frame 11 a of the opening 11. The opening 11 in the figure is a window opening provided on the outer wall surface of the building. The window door 9 may be a hinged door, a sliding door, or another opening / closing type door. The building provided with the opening 11 may be any of a detached house, an apartment house, an office building, etc., and may be a building having any construction method.

  The daylighting surface material 1 is a multilayer surface comprising an outdoor side plate 2 provided on the outdoor side and an indoor side plate 3 provided on the indoor side with an air layer 8 separated from the outdoor side plate 2 to diffuse transmitted light. It is made of wood. The thickness of the air layer 8 is about t = 12 mm. The outdoor side plate 2 is formed by overlapping a transparent refractive material layer 5 on the indoor side surface of the non-diffusible transparent plate 4. As the transparent plate 4, for example, a transparent glass such as a single float glass having a thickness of about t = 3 mm is used, but a plate material such as a transparent synthetic resin such as a transparent acrylic resin other than the transparent glass may be used. The refractive material layer 5 has a shape in which linearly extending prism portions 5a are arranged in parallel, and each prism portion 5a is formed with an acute angle whose corner at the tip is narrower than the corners on both sides of the base end. . The material of the refractive material layer 5 is preferably a glass, polyethylene, acrylic resin or the like having a refractive index of about 1.4, and is attached to the transparent plate 4 by adhesion.

Here, the indoor side plate 3 is made of a template glass having a thickness of about t = 4 mm in which the surface facing the outdoor side is an uneven surface 3a for diffusing transmitted light. The uneven surface 3a may be formed on a surface facing the indoor side. In addition to the template glass, the indoor side plate 3 may be a tapestry-processed glass plate or a glass plate with a diffusion film attached similar to this, and the transparent plate 4 of the outdoor side plate 2. A light transmittance of about 0.9 may be used.

  According to the opening structure provided with the window door 9 using the daylighting surface material 1 having the above configuration, when the light from the outdoor side is taken into the room through the opening part 11, the outdoor side plate 2 has various types as shown in FIG. Incident incident light A to E is emitted in different angular directions by disturbing the order of incident angles by the refractive action of the refractive material layer 5. As a result, the image of the object outside the room appears to be a completely disturbed image from the inside of the room, and the image of the object inside the room also appears to be a completely disturbed image from the outside. The blindfold effect that cannot be recognized is demonstrated. Further, since the incident light that has passed through the outdoor side plate 2 is also diffused by the indoor side plate 3 that diffuses the transmitted light, the image is disturbed and the blinding effect is further increased.

  On the other hand, natural light incident from the outside can be sufficiently taken into the room by the refraction action at the outdoor side plate 2 and the light diffusion action at the indoor side plate 3. Thereby, both the lighting effect and the blindfold effect can be achieved.

  In addition, when the said outdoor side board consists only of the general template glass 30 like FIG. 4, since incident light AE of various angles is radiate | emitted in the angle direction corresponding to an incident angle order, it is blinded as mentioned above. There is no effect.

  FIG. 5 shows a configuration example of the apparatus used for verifying the blinding effect of the daylighting face material 1. In this device, a doll 21 is placed as a recognition object in a space on the base 20 on the indoor side, the lighting surface material 1 is installed at a distance of 300 mm from the doll 21, and the doll 21 is sandwiched between the lighting surface materials 1. A camera 22 is installed in a space that looks like the outdoor side, and the doll 21 is photographed by the camera 22. FIG. 6B shows an image taken by the camera 22 at this time, and FIG. 6A shows an image taken by replacing the daylighting face material 1 with a general template glass. As is clear from the comparison of these images, when the daylighting surface material 1 is used, the image of the doll 21 viewed from the outside has a greater sense of image distortion and less color than an image seen through a general template glass. It is clear that a high blinding effect is obtained.

  This makes it possible to use this daylighting surface material 1 as a window whose appearance is unknown from the outside, for example, by using it for windows in bathrooms and dressing rooms, or when privacy concerns with neighboring buildings are mutually concerned. For example, the opening can be made independent of a shield such as a curtain.

FIG. 7 shows the same daylighting effect of the example (FIG. 7B) in which the opening 11 using the daylighting face material 1 is used for an environmental part (such as a north side window) that is not exposed to sunlight in a building. The image compared with the lighting effect of the example (FIG. 7 (A)) which used the template glass as the lighting surface material of a window is shown.
As is clear from the comparison of these images, the window using the daylighting surface material 1 of the embodiment (FIG. 7B) is a conventional window using a template glass (see FIG. 7) even in an environment where sunlight is not applied. It can be seen that the brightness feeling is improved as compared with 7 (A), and the lighting effect is high.

  FIG. 8 shows another embodiment of the present invention. In this lighting surface material 1A, in the lighting surface material 1 in the embodiment shown in FIGS. 1 to 7, a laminated glass for crime prevention in which a template glass and another glass are stacked is used as the indoor side plate 3 for diffusing transmitted light. A heat ray shielding film 6 such as a Low-E vapor deposition film is applied to the surface of the laminated glass on the air layer 8 side, and the interior side surface of the template glass is used as an uneven portion 3a for diffusing transmitted light. . Other configurations are the same as those in the previous embodiment.

  When the indoor side plate 3 is configured in this way, the heat rays contained in the natural light incident from the outside can be cut by the heat ray shielding film 6, so that the heat rays can be effectively cut off even in the summertime when the sunlight is strong. Temperature rise can be reduced.

  FIG. 9 shows still another embodiment of the present invention. In this daylighting surface material 1B, in the daylighting surface material 1 in the embodiment shown in FIGS. 1 to 7, the transparent plate 4 and the refractive material layer 5 constituting the outdoor side plate 2 are made of an adhesive material 7 including a UV cut material. It is glued. Other configurations are the same as those in the previous embodiment.

  When the transparent plate 4 and the refractive material layer 5 constituting the outdoor side plate 2 are bonded with the adhesive material 7 including the UV cut material in this manner, the ultraviolet rays contained in the incident natural light are UV cut in the adhesive material 7. Since the material can be cut, even if the refractive material layer 5 is made of a resin material, the refractive material layer 5 can be reliably prevented from being deteriorated by ultraviolet rays.

  In the configuration of FIG. 9, instead of including the UV cut material in the adhesive material 7, a material including the UV cut material may be used as the material of the transparent plate 4. Also in this case, since the ultraviolet rays contained in the incident natural light can be cut by the UV-cut material contained in the transparent plate 4, even if the refractive material layer 5 is made of a resin material, the refractive material layer 5 It is possible to reliably prevent UV degradation from occurring.

DESCRIPTION OF SYMBOLS 1,1A, 1B ... Daylighting surface material 2 ... Outdoor side plate 3 ... Indoor side plate 3a ... Uneven part 4 ... Transparent plate 5 ... Refraction material layer 5a ... Prism part 6 ... Heat ray shielding film 7 ... Adhesive material 8 ... Air layer 11 ... Opening Part

Claims (4)

A multi-layer daylighting surface material provided in an opening of a building to block the opening and allow light outside the room to enter the room,
An outdoor plate in which a transparent refractive material layer is provided on the indoor side surface of a non-diffusible transparent plate provided on the outdoor side, and a transparent layer provided on the indoor side with an air layer separated from the outdoor plate. An inner side plate for diffusing light, and the refractive material layer of the outer side plate has a shape in which prism portions extending linearly are arranged in parallel. Each of the prism portions has an acute angle that is narrower than each corner portion, and the tip of each prism portion faces the indoor side, and the indoor side plate has an uneven surface for diffusing transmitted light on either the inside or the outside. A daylighting surface material, which is a template glass, and which appears to be an image that is disturbed to the extent that an image of an object in the room cannot be recognized from the outside due to the presence of the daylighting surface material. The daylighting surface material according to claim 1 , wherein the indoor side plate has a heat ray shielding film on the air layer side surface, and the indoor side surface is an uneven surface for diffusing transmitted light. Wood. 3. The daylighting surface material according to claim 1 , wherein the outdoor plate has the transparent plate and the refractive material layer bonded to each other with an adhesive material including a UV cut material, or the UV cut material to the transparent plate. Daylighting surface material using a material containing. The opening part structure of a building provided with the lighting surface material of any one of Claim 1 thru | or 3 in the opening part of the building.

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