JPS62141291A - Natural illumination device - Google Patents

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【発明の詳細な説明】 ［産業上の利用分野］ 本発明は採光用の窓ガラスとして、又は窓ガラスと共に
使用される装置であって、室内から外を見る視野をそれ
程損なうことなく日光の室内への直射を防止することが
できるものに関する。Detailed Description of the Invention [Industrial Field of Application] The present invention is a device for use as a daylighting window glass or together with a window glass, which allows sunlight to enter the room without significantly impairing the view from inside the room to the outside. It relates to something that can prevent direct radiation to.

［従来技術］ 室内から外を見る視野を確保しながら日光の室内への直
射を防止する装：ηとして、これまで、水平又は垂直に
スラントが並ぶブラインドが主として使用されてきたが
、スラットの角度によっては窓面に直交する方向の視野
が茗しく狭くなるという問題があった。[Prior art] Blinds with horizontal or vertical slants have been mainly used to prevent direct sunlight from entering the room while ensuring a field of view from inside the room to the outside, but the angle of the slats In some cases, there is a problem in that the field of view in the direction perpendicular to the window surface becomes awkwardly narrow.

又、窓ガラスの内面に合成樹脂製フィルムを添着して直
射日光を減光することもなされているが、この場合、視
野は広いが、外は常に暗く見えるという問題があった。It has also been attempted to attach a synthetic resin film to the inner surface of the window glass to reduce direct sunlight, but in this case, although the field of view is wide, there is a problem in that the outside always appears dark.

［発明が解決しようとする問題点］ 本発明は上記に鑑みてなされたものであり、その目的と
するところは、窓面に直交する方向の視野を損なうこと
なく、又１外が暗く見えたりすることもなく、室内への
日光の直射を防止することが可能であり、採光用の窓ガ
ラスとしても、又、窓カラスの併設装置としても使用可
能な装置を提供することにある。[Problems to be Solved by the Invention] The present invention has been made in view of the above, and its purpose is to solve the problem without impairing the field of view in the direction perpendicular to the window surface, and without causing the outside to appear dark. To provide a device that can prevent direct sunlight from entering a room without causing damage, and can be used both as a window glass for daylighting and as a device attached to a window glass.

［問題を解決するための手段］ 前記目的を達成するため本発明の特徴とする手段は、表
面が光を散乱させる散乱層と、光を透過させる横断面が
平行四辺形の透明層を交互に多数垂直に重ねた積層体か
らなる装置において、各透明層横断面の高さをその上下
に接する二個の散乱層の平面投影幅の半分以下にしたこ
とにある。[Means for Solving the Problem] In order to achieve the above object, the feature of the present invention is to alternately include a scattering layer whose surface scatters light and a transparent layer whose cross section is a parallelogram which transmits light. In a device consisting of a large number of vertically stacked laminates, the height of each transparent layer cross section is set to less than half the planar projected width of the two scattering layers that are in contact with each other above and below.

透明層横断面は長方形を含む平行四辺形の透明な窓用カ
ラス、赤外線吸収ガラス、赤外線反射ガラスの無機角材
、アクリル樹脂等の有機角材であり、軽量にするため内
部を中空にしてもよい。散乱層は光散乱性のラミネート
フィルム、塗膜等として透明層とは分離して形成しても
よいが、透明層の角材の上下面にエツチング等の粗面加
工を施して散乱層を形成してもよい。The cross section of the transparent layer is a parallelogram including a rectangle, and is made of an inorganic square material such as a transparent glass for windows, infrared absorbing glass, or infrared reflective glass, or an organic square material such as acrylic resin, and may be hollow inside to reduce weight. The scattering layer may be formed as a light-scattering laminate film, paint film, etc. separately from the transparent layer, but the scattering layer may be formed by roughening the top and bottom surfaces of the square timbers of the transparent layer, such as etching. It's okay.

［作用］ 南面の窓に対する太陽の高度は日本では３０゜以下には
ならないから、相対する散乱層の間隔すなわち透明層の
高さが散乱層の幅の半分以下であれば、直射日光が透明
層を貫通することはなく。[Effect] The altitude of the sun relative to the south-facing window is not less than 30 degrees in Japan, so if the distance between the opposing scattering layers, that is, the height of the transparent layer is less than half the width of the scattering layer, direct sunlight will not fall below the transparent layer. without penetrating.

透明層に入射した直射日光は散乱層によって散乱され、
散乱光のみが室内に入るから、室内は散乱光によって十
分に照明される。Direct sunlight that enters the transparent layer is scattered by the scattering layer,
Since only scattered light enters the room, the room is sufficiently illuminated by the scattered light.

装置を水平方向に見ると、散乱層の部分以外は光を遮断
したり、減光したりしないから、外の景色は縞状になる
が、十分に見ることができる。When looking at the device horizontally, the outside scenery becomes striped, but you can still see it well because nothing except the scattering layer blocks or reduces light.

東面及び西面の窓に対する太陽の高度は日の高い時間を
除くと３０’以下になるが、高度の低い時の太陽光は弱
いので、直射光は特に苦になることはない。The altitude of the sun relative to the windows on the east and west sides is less than 30', excluding the high hours of the day, but since the sunlight at low altitudes is weak, direct light is not particularly bothersome.

透明層の横断面を平行四辺形にするか又は長方形横断面
の透明層を交互に前後にずらせて重ねると、散乱層の実
効幅が単体の散乱層の幅よりも長くなるので、それだけ
各透明層の横断面の高さを高くすることが可能になる。If the cross section of the transparent layer is a parallelogram or if the transparent layers with rectangular cross sections are stacked alternately and shifted back and forth, the effective width of the scattering layer will be longer than the width of a single scattering layer, so each transparent layer will be It becomes possible to increase the height of the cross section of the layer.

各透明層の横断面の高さが高くなればなる程、水平方向
の外の景色がよく見えることはいうまでもない。Needless to say, the higher the height of the cross section of each transparent layer, the better the horizontal view of the outside can be seen.

［実施例］ 本発明の装置を図面に示す実施例に基づいて説明する。[Example] The apparatus of the present invention will be explained based on embodiments shown in the drawings.

第１図に示すように、本発明の装置は横断面長方形の透
明なガラスの透明層１０と光散乱性の接着フィルムの散
乱層２０を交互に多数垂直に重ねた積層体からなり、図
示していないが、窓ガラス枠にはめると気密性を有する
から、窓ガラスとして使用することができる。第２図に
示すように、この散乱層２０の水平方向の幅Ｗは透明層
ｌＯのガラスの横断面の高さＨの２倍であるから、南面
の窓ガラスとして使用すると、−年中、直射日光Ａは散
乱層２０により散乱するため、室内に入らないが、散乱
光Ｂが十分に室内に入るから、室内は十分に照明される
。室内から装置を通して水平方向に外を見たとき、矢印
Ｃで示すように、透明層ｌＯは水平方向の光の透過を全
く妨げないし減光もしないから、散乱層２０の部分を除
き、外の景色は十分に見ることができる。As shown in FIG. 1, the device of the present invention consists of a laminate in which a large number of transparent layers 10 of transparent glass with a rectangular cross section and scattering layers 20 of light-scattering adhesive films are vertically stacked alternately. However, since it is airtight when fitted into a window frame, it can be used as window glass. As shown in FIG. 2, the horizontal width W of the scattering layer 20 is twice the height H of the cross section of the glass of the transparent layer IO, so when used as a south-facing window glass, - all year round. Direct sunlight A is scattered by the scattering layer 20 and therefore does not enter the room, but the scattered light B sufficiently enters the room, so that the room is sufficiently illuminated. When looking horizontally outside through the device from inside the room, as shown by arrow C, the transparent layer 1O does not obstruct the transmission of light in the horizontal direction or attenuate the light at all, so except for the scattering layer 20, the outside is visible. You can see the scenery well.

第３図に示すように軽量化を図るため、透明層１０のガ
ラスの内部に空洞１２を設けて中空体にしてもよい。As shown in FIG. 3, in order to reduce the weight, a cavity 12 may be provided inside the glass of the transparent layer 10 to form a hollow body.

第４図に示すように、横断面平行四辺形の透明アクリル
樹脂製透明層１０の上下両面に粗面加工を施して散乱層
２０を形成し、このアクリル樹脂を複層ガラス３０の内
部に入れて垂直に重ねることにより本発明の採光装置を
得ることができる。この場合、重ねたアクリル樹脂を相
互に接着結合させる必要はない。各透明層１０の高さＨ
はその上下の散乱層の平面投影幅Ｗの半分であるが、横
断面が平行四辺形のため、上下の散乱層２０の幅よりも
長くなるから、透明層ｌＯの高さＨは長方形横断面のも
のよりも高くなり、外を見る水平方向の視野もその分だ
けよくなる。ただし、長方形横断面の透明層も交互に前
後にずらせて重ねると同様な効果が得られることはいう
までもない。As shown in FIG. 4, the upper and lower surfaces of a transparent layer 10 made of transparent acrylic resin having a parallelogram cross section are roughened to form a scattering layer 20, and this acrylic resin is placed inside a double-glazed glass 30. The daylighting device of the present invention can be obtained by stacking them vertically. In this case, it is not necessary to adhesively bond the stacked acrylic resins to each other. Height H of each transparent layer 10
is half of the planar projected width W of the scattering layers above and below it, but since the cross section is a parallelogram, it is longer than the width of the scattering layers 20 above and below, so the height H of the transparent layer IO is equal to the rectangular cross section. It will be higher than the previous model, and the horizontal field of view to the outside will also be that much better. However, it goes without saying that the same effect can be obtained by stacking the transparent layers having rectangular cross-sections in a manner that is alternately shifted back and forth.

［発明の効果］ 上記の通り、本発明の装置は透明層と散乱層を交互に垂
直に重ねた積層体からなり、横断面において透明層の高
さはその上下の散乱層の平面投影幅の半分以下であるか
ら１日光の室内への直射を有効に防止するが、水平方向
の光は遮断も減光もされないので、戸外が暗くなること
はなく、室内から水平方向に見る外の景色は薄い散乱層
の部分を除き、十分見えるという優れた効果を有する。[Effects of the Invention] As described above, the device of the present invention consists of a laminate in which transparent layers and scattering layers are alternately stacked vertically, and the height of the transparent layer in the cross section is equal to the plane projected width of the scattering layers above and below it. Since it is less than half the amount of sunlight, it effectively prevents sunlight from entering the room directly, but horizontal light is not blocked or reduced, so the outdoors will not be dark, and the view of the outdoors seen horizontally from inside the room will be It has an excellent effect of being fully visible except for the thin scattering layer.

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本発明の一実施例の装置の斜視図、第２図は第
１図の装置の直射光の散乱を示す横断面図、 第３図は他の実施例の横断面図、 第４図は別の実施例の横断面図、 図において、符号１０は透明層、２０は散乱層を示す。 第２図　第３図　第４図1 is a perspective view of an apparatus according to an embodiment of the present invention, FIG. 2 is a cross-sectional view showing scattering of direct light of the apparatus of FIG. 1, FIG. 3 is a cross-sectional view of another embodiment, FIG. 4 is a cross-sectional view of another embodiment. In the figure, reference numeral 10 indicates a transparent layer and 20 indicates a scattering layer. Figure 2 Figure 3 Figure 4

Claims (1)

【特許請求の範囲】 １）表面が光を散乱させる散乱層と、横断面が平行四辺
形で光を透過させる透明層とを交互に垂直に重ねた積層
体からなり、各透明層横断面の高さはその上下の面に接
する二個の散乱層の平面投影幅の半分以下であることを
特徴とする採光装置。 ２）透明層は透明な無機角材又は有機角材からなり、散
乱層は上下両面が光散乱面に形成された薄層材からなる
ことを特徴とする特許請求の範囲第１項記載の採光装置
。 ３）透明層は透明な無機角材又は有機角材からなり、散
乱層は光散乱面に形成された前記無機角材又は有機角材
の上下両面からなることを特徴とする特許請求の範囲第
１項記載の採光装置。 ４）透明層は内部が中空な無機角材又は有機角材からな
ることを特徴とする特許請求の範囲第１項記載の採光装
置。[Claims] 1) Consisting of a laminate in which a scattering layer whose surface scatters light and a transparent layer whose cross section is a parallelogram and which transmits light are alternately stacked vertically, and each transparent layer's cross section is A lighting device characterized in that its height is less than half of the plane projected width of two scattering layers that are in contact with the upper and lower surfaces of the lighting device. 2) The daylighting device according to claim 1, wherein the transparent layer is made of a transparent inorganic or organic squared material, and the scattering layer is made of a thin layer material whose upper and lower surfaces are formed with light-scattering surfaces. 3) The transparent layer is made of a transparent inorganic or organic square, and the scattering layer is made of both upper and lower surfaces of the inorganic or organic square that is formed on the light-scattering surface. Lighting device. 4) The lighting device according to claim 1, wherein the transparent layer is made of an inorganic square timber or an organic square timber with a hollow interior.