JP5705691B2 - Daylight lens sheet - Google Patents

Daylight lens sheet Download PDF

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JP5705691B2
JP5705691B2 JP2011200145A JP2011200145A JP5705691B2 JP 5705691 B2 JP5705691 B2 JP 5705691B2 JP 2011200145 A JP2011200145 A JP 2011200145A JP 2011200145 A JP2011200145 A JP 2011200145A JP 5705691 B2 JP5705691 B2 JP 5705691B2
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JP2013062157A (en
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松本 周三
周三 松本
林 慎一郎
慎一郎 林
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Shin Etsu Polymer Co Ltd
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Description

本発明は、各種の建築物等の窓に設置される採光レンズシートに関するものである。   The present invention relates to a daylighting lens sheet installed on windows of various buildings and the like.

近年の建築・建設業界においては、建物の空間に太陽光等の自然光を導光して快適な環境を創造したり、省エネを実現することのできる採光設備が注目されている。この種の採光設備は、図示しないが、例えば各種センサからの入力値に基づいてブラインドの羽根の角度を調整したり、開閉する複数の個別コントローラと、この複数の個別コントローラを制御する中央制御システムとから構成されている(特許文献1参照)。   In recent years, in the construction and construction industries, lighting facilities that can create a comfortable environment by guiding natural light such as sunlight into a building space and realize energy saving have attracted attention. Although this kind of lighting equipment is not shown, for example, a plurality of individual controllers that adjust or adjust the angle of the blades of the blinds based on input values from various sensors, and a central control system that controls the plurality of individual controllers (Refer to Patent Document 1).

特開2008−269831号公報JP 2008-269831 A

従来における採光設備は、以上のように構成されているので、自然光の照射時間や日射量に対応する専用の設備が必要となり、設計の自由度を向上させたり、構成の簡素化やコストの削減を図ることができないという問題がある。また、採光設備自体が電力を消費するので、省エネの実現には限界がある。   The conventional daylighting equipment is configured as described above, requiring dedicated equipment that can handle natural light irradiation time and solar radiation, improving design flexibility, simplifying the configuration, and reducing costs. There is a problem that cannot be achieved. Moreover, since the lighting facility itself consumes electric power, there is a limit to realizing energy saving.

本発明は上記に鑑みなされたもので、自然光の照射時間や照射量に対応する専用の設備を省略して構成の簡素化やコストの削減を図ることができ、しかも、設計の自由度を向上させたり、省エネの向上が期待できる採光レンズシートを提供することを目的としている。   The present invention has been made in view of the above, and it is possible to simplify the configuration and reduce the cost by omitting the dedicated equipment corresponding to the irradiation time and irradiation amount of natural light, and to improve the degree of freedom of design. The purpose is to provide a daylighting lens sheet that can be expected to improve energy saving.

本発明においては上記課題を解決するため、建築物の窓に、光透過性を有するシートを取り付け、このシートの入射面に自然光を入射させ、この入射した自然光をシートの出射面から建築物内に出射させるものであって、
シートの入射面に、レンズ機能を発揮する複数の湾曲部を一列に連続して配列形成し、湾曲部を断面略半楕円形とし、
シートの出射面に、複数の湾曲部に対向する複数の凸部を所定の間隔で一列に配列形成し、隣接する凸部と凸部との間に、隣接する湾曲部間の境界に対向する平坦面を区画し、凸部を湾曲部の幅よりも幅の狭い先細りの断面台形に形成してその平坦な先端面から自然光を出射可能とし、
シートの周面、湾曲部の表面、湾曲部のシートの周面に連なる端面、及び隣接する凸部と凸部との間の平坦面に、自然光用の漏洩防止処理をそれぞれ施したことを特徴としている。
In the present invention, in order to solve the above-mentioned problems, a light-transmitting sheet is attached to a window of a building , natural light is incident on the incident surface of the sheet, and the incident natural light is introduced into the building from the exit surface of the sheet. Which emits light,
On the incident surface of the sheet, a plurality of curved portions that exhibit a lens function are continuously arranged in a line, and the curved portions are substantially semi-elliptical in cross section,
A plurality of convex portions opposed to the plurality of curved portions are formed in a line at a predetermined interval on the emission surface of the sheet, and are opposed to the boundary between the adjacent curved portions between the adjacent convex portions. A flat surface is defined, and the convex portion is formed into a tapered trapezoidal shape with a narrower width than the width of the curved portion so that natural light can be emitted from the flat tip surface.
Leakage prevention processing for natural light is performed on the peripheral surface of the sheet, the surface of the curved portion, the end surface connected to the peripheral surface of the curved portion of the sheet, and the flat surface between the adjacent convex portions. It is said.

なお、シートをフェニルシリコーンゴムにより形成することができる。
また、各凸部の一対の傾斜面のうち、一方の傾斜面に自然光用の漏洩防止処理を施し、他方の傾斜面を加工することにより、この他方の傾斜面から自然光を出射させることができる。
さらに、凸部の先端面における隅部を丸く面取りせず、角張らせることもできる。
The sheet can be formed of phenyl silicone rubber .
Moreover, natural light can be emitted from the other inclined surface by performing leakage prevention processing for natural light on one inclined surface of the pair of inclined surfaces of each convex portion and processing the other inclined surface. .
Furthermore, the corners on the front end surface of the convex portion can be made angular without being rounded and chamfered.

ここで、特許請求の範囲における建築物の窓には、少なくとも住宅、ビル、公共施設、商業施設、病院等の窓、天窓等が含まれる。また、シートは、例えば所定の合成樹脂やゴム、エラストマー等により形成することができる。湾曲部は、断面略半楕円形に形成されるが、この断面略半楕円形には、断面半楕円形や半円形、円の一部、あるいはこれらに類似する形状が含まれる。さらに、本発明に係る採光レンズシートを製造する場合には、鏡面処理等により自然光の漏洩を防止する観点等から、金型に成形材料を充填して成形することが好ましい。 Here, the building windows in the claims include at least houses, buildings, public facilities, commercial facilities, hospital windows, skylights, and the like. The sheet can be formed of, for example, a predetermined synthetic resin, rubber, elastomer or the like. The curved portion is formed in a substantially semi-elliptical cross section, and the semi-elliptical cross section includes a semi-elliptical cross section, a semicircular shape, a part of a circle, or a shape similar to these. Further, when the daylighting lens sheet according to the present invention is manufactured, it is preferable that the mold is filled with a molding material from the viewpoint of preventing leakage of natural light by mirror surface treatment or the like.

本発明によれば、快適な環境を創造したり、省エネを図りたい場合、窓に採光レンズシートを装着した後、この採光レンズシートに自然光が降り注ぐのを待つだけで良い。自然光が降り注ぐと、自然光は、シート入射面の湾曲部に入射し、シート内を通過して凸部の少なくとも先端面から建築物内等に出射され、建築物内の壁面等を照射することにより、明るい照明を実現する。   According to the present invention, in order to create a comfortable environment or to save energy, it is only necessary to wait for natural light to fall on the daylighting lens sheet after mounting the daylighting lens sheet on the window. When natural light falls, the natural light enters the curved portion of the sheet incident surface, passes through the sheet, is emitted from at least the front end surface of the convex portion into the building, etc., and illuminates the wall surface in the building. Realize bright lighting.

本発明によれば、自然光の照射時間や照射量に対応する専用の設備を省略して構成の簡素化やコストの削減を図ることができるという効果がある。また、設計の自由度を向上させたり、省エネの向上が実現できる。また、隣接する複数の湾曲部の間に平面が生じないよう、複数の湾曲部を一列に連続して配列するので、自然光を屈折させて凸部内に進行させることができる。また、湾曲部が断面略半楕円形なので、自然光の照射角度にかかわらず、自然光を受光することができる。また、隣接する凸部と凸部との間に平坦面を区画するので、建築物内からの光線の入射を規制することが可能となる。また、平坦面の区画により、複数の凸部を隙間なく連続して配列形成する必要がなく、採光レンズシートを成形する場合の作業が容易になる。さらに、シートの周面、湾曲部の表面、湾曲部のシートの周面に連なる端面、及び隣接する凸部と凸部との間の平坦面に、自然光用の漏洩防止処理をそれぞれ施すので、入射した自然光が外部に漏洩するおそれを排除することが可能となる。 According to the present invention, there is an effect that the dedicated equipment corresponding to the irradiation time and the irradiation amount of natural light can be omitted, and the configuration can be simplified and the cost can be reduced. In addition, the degree of freedom in design can be improved, and energy saving can be improved. In addition, since the plurality of curved portions are continuously arranged in a row so that no plane is generated between the adjacent curved portions, natural light can be refracted and advanced into the convex portion. Further, since the curved portion has a substantially semi-elliptical cross section, natural light can be received regardless of the natural light irradiation angle. In addition, since a flat surface is defined between the adjacent convex portions, the incidence of light rays from the building can be restricted. In addition, the division of the flat surface eliminates the need to continuously form a plurality of convex portions without gaps, and facilitates the operation when the daylighting lens sheet is molded. Furthermore, since the leakage prevention process for natural light is performed on the peripheral surface of the sheet, the surface of the curved portion, the end surface connected to the peripheral surface of the sheet of the curved portion, and the flat surface between the adjacent convex portions and the convex portions, respectively. It is possible to eliminate the possibility of incident natural light leaking outside.

また、請求項2記載の発明によれば、フェニルシリコーンゴムによりシートを形成し、屈折率を高くして臨界角を小さくするので、採光レンズシートを薄くし、しかも、採光レンズシートの耐熱性や耐候性を向上させることができる。 According to the second aspect of the present invention, since the sheet is formed of phenyl silicone rubber and the refractive index is increased to reduce the critical angle, the daylighting lens sheet is thinned. Weather resistance can be improved .

また、請求項3記載の発明によれば、各凸部の他方の傾斜面から自然光を上方向等に出射させることができるので、自然光の照射範囲の拡大が期待でき、建築物の内部における照度や輝度を向上させることが可能になる。 Further, according to the invention described in claim 3, since natural light can be emitted upward from the other inclined surface of each convex portion, an expansion of the natural light irradiation range can be expected, and the illuminance inside the building And the brightness can be improved.

本発明に係る採光レンズシートの実施形態を模式的に示す全体説明図である。1 is an overall explanatory view schematically showing an embodiment of a daylighting lens sheet according to the present invention. 本発明に係る採光レンズシートの実施形態における窓ガラスの外面に採光レンズシートを装着した状態を模式的に示す説明図である。It is explanatory drawing which shows typically the state which mounted the lighting lens sheet | seat on the outer surface of the window glass in embodiment of the lighting lens sheet | seat which concerns on this invention. 本発明に係る採光レンズシートの実施形態における窓ガラス内に採光レンズシートを内蔵した状態を模式的に示す説明図である。It is explanatory drawing which shows typically the state which incorporated the lighting lens sheet in the window glass in embodiment of the lighting lens sheet which concerns on this invention. 本発明に係る採光レンズシートの実施形態を模式的に示す斜視説明図である。It is a perspective explanatory view showing typically an embodiment of a daylighting lens sheet concerning the present invention. 本発明に係る採光レンズシートの実施形態における自然光との関係を模式的に示す部分説明図である。It is a partial explanatory view showing typically relation with natural light in an embodiment of a daylighting lens sheet concerning the present invention. 本発明に係る採光レンズシートの第2の実施形態を模式的に示す全体説明図である。It is whole explanatory drawing which shows typically 2nd Embodiment of the daylighting lens sheet | seat which concerns on this invention. 本発明に係る採光レンズシートの第2の実施形態を模式的に示す部分説明図である。It is a partial explanatory view showing typically the 2nd embodiment of the daylighting lens sheet concerning the present invention. 本発明に係る採光レンズシートの第3の実施形態を模式的に示す部分説明図である。It is a partial explanatory view showing a 3rd embodiment of a lighting lens sheet concerning the present invention typically.

以下、図面を参照して本発明の実施形態を説明すると、本実施形態における採光レンズシートは、図1ないし図5に示すように、建築物1の窓ガラス2に、光透過性を有する透明のシート10を装着し、このシート10の自然光が入射する入射面に、複数の湾曲部20を一体的に配列形成するとともに、シート10の出射面に、複数の凸部30を一体的に配列形成し、これら複数の湾曲部20と凸部30とを組み合わせて各凸部30の先端面33から建築物1の室内5に自然光を出射させるようにしている。   Hereinafter, embodiments of the present invention will be described with reference to the drawings. As shown in FIGS. 1 to 5, the daylighting lens sheet in the present embodiment is transparent to the window glass 2 of the building 1. The sheet 10 is mounted, and a plurality of curved portions 20 are integrally formed on the incident surface of the sheet 10 on which natural light is incident, and a plurality of convex portions 30 are integrally arranged on the exit surface of the sheet 10. The plurality of curved portions 20 and the convex portions 30 are combined so that natural light is emitted from the front end surface 33 of each convex portion 30 to the room 5 of the building 1.

シート10は、図1、図4、図5に示すように、所定の材料を使用して窓ガラス2の大きさ以下の大きさを有する平面矩形に成形され、必要に応じて可撓性や屈曲性が付与されており、窓ガラス2の内面に貼着される。このシート10の材料としては、例えばポリカーボネート、アクリル樹脂、シリコーンゴム、フェニルシリコーンゴム等があげられる。これらの中でも、屈折率が高いことにより臨界角を小さくする(自然光を内部に閉じ込め易くなる)ことで採光レンズシート自体を薄くし、しかも、優れた耐熱性・耐候性が期待できるフェニルシリコーンゴムの採用が好ましい。   As shown in FIGS. 1, 4 and 5, the sheet 10 is formed into a plane rectangle having a size equal to or smaller than the size of the window glass 2 using a predetermined material. Flexibility is imparted and it is attached to the inner surface of the window glass 2. Examples of the material of the sheet 10 include polycarbonate, acrylic resin, silicone rubber, and phenyl silicone rubber. Among these, phenylsilicone rubber, which has a high refractive index, makes the daylighting lens sheet itself thinner by reducing the critical angle (which makes it easier to confine natural light inside), and can be expected to have excellent heat resistance and weather resistance. Adoption is preferred.

シート10の周面11は、シート10に入射した自然光(図1や図5の矢印参照)が外部に漏洩するおそれを考慮し、漏洩防止処理が施される。この漏洩防止処理としては、例えば(1)シート10の周面11を鏡面加工し、自然光を閉じ込めながら反射させる処理、(2)シート10の周面11を所定の角度で傾斜させ、自然光を閉じ込めながら反射させる処理、(3)シート10の周面11に任意の色彩の顔料(白色顔料等)を塗布して硬化させる処理、(4)金型のキャビティに加工した微細な凹凸を転写することにより、シート10の周面11に微細な凹凸を多数形成してモスアイ構造とし、自然光を吸収してその漏洩を規制する処理等があげられる。   The peripheral surface 11 of the sheet 10 is subjected to leakage prevention processing in consideration of the possibility that natural light incident on the sheet 10 (see arrows in FIGS. 1 and 5) leaks to the outside. As this leakage prevention processing, for example, (1) a process in which the peripheral surface 11 of the sheet 10 is mirror-finished and reflected while confining natural light, and (2) the natural surface 11 is inclined by a predetermined angle to confine natural light. (3) Applying a pigment of any color (white pigment, etc.) to the peripheral surface 11 of the sheet 10 and curing it, (4) Transferring fine irregularities processed into the mold cavity Thus, a process of forming a lot of fine irregularities on the peripheral surface 11 of the sheet 10 to form a moth-eye structure, absorbing natural light, and restricting the leakage, and the like can be given.

これら自然光の漏洩防止処理は、特に限定されるものではなく、いずれの処理方法でも良いが、採光レンズシートの成形時に一体形成が可能で加工が容易な鏡面加工処理が好ましい。   These natural light leakage prevention treatments are not particularly limited, and any treatment method may be used, but a mirror finish treatment that can be integrally formed at the time of forming the daylighting lens sheet and is easy to process is preferable.

シート10は、図1に示すように、窓ガラス2の内面に直接貼着されても良いが、図示しない透明の粘着シートを介し間接的に貼着することもできる。また、状況に応じ、窓ガラス2の外面に直接貼着されるが、透明の粘着シートを介し間接的に貼着することもできる(図2参照)。さらに、窓ガラス2が図3に示すような二重ガラスの場合、対向する内ガラス3と外ガラス4の間に直接介在貼着されることがあるが、この場合、透明の粘着シートを介し間接的に介在貼着しても良い。   As shown in FIG. 1, the sheet 10 may be directly attached to the inner surface of the window glass 2, but can also be indirectly attached via a transparent adhesive sheet (not shown). Moreover, although it sticks directly on the outer surface of the window glass 2 according to a condition, it can also stick indirectly through a transparent adhesive sheet (refer FIG. 2). Further, in the case where the window glass 2 is a double glass as shown in FIG. 3, it may be directly interposed between the inner glass 3 and the outer glass 4 facing each other, but in this case, a transparent adhesive sheet is used. It may be indirectly attached.

複数の湾曲部20は、図1、図4、図5に示すように、シート10の入射面X方向に一列に連続して配列形成され、各湾曲部20がシート10の入射面Y方向に直線的に伸長形成されており、建築物1の外方向に向けられる。隣接する湾曲部20と湾曲部20との間は、自然光を屈折させて凸部30内に進行させるため、平面がなく、連続することが好ましい。各湾曲部20は、自然光の照射角度にかかわらず、自然光を受光できるよう断面略半楕円形に膨出形成され、レンズ機能を発揮する。   As shown in FIGS. 1, 4, and 5, the plurality of curved portions 20 are continuously formed in a row in the incident surface X direction of the sheet 10, and each curved portion 20 is arranged in the incident surface Y direction of the sheet 10. It is formed in a straight line and is directed outward from the building 1. It is preferable that there is no plane between the adjacent curved portions 20 and the curved portions 20 because the natural light is refracted and advanced into the convex portion 30. Each of the curved portions 20 bulges to have a substantially semi-elliptical cross section so that natural light can be received regardless of the natural light irradiation angle, and exhibits a lens function.

湾曲部20の断面半円弧形に湾曲した表面21、及びシート10の周面11に連なる端面22は、入射した自然光が外部に漏洩するおそれを排除するため、漏洩防止処理が施される。この漏洩防止処理としては、上記(1)〜(4)の処理が採用されるが、処理の簡単な鏡面加工処理が最適である。   The surface 21 curved in a semicircular cross section of the curved portion 20 and the end surface 22 connected to the peripheral surface 11 of the sheet 10 are subjected to leakage prevention processing in order to eliminate the possibility of incident natural light leaking to the outside. As the leakage prevention process, the above processes (1) to (4) are adopted, but the mirror finishing process which is easy to process is optimal.

複数の凸部30は、同図に示すように、シート10の出射面X方向に所定の間隔で一列に配列形成され、複数の湾曲部20と相互に対向しており、各凸部30がシート10の出射面Y方向に直線的に伸長形成される。この複数の凸部30は、隣接する凸部30と凸部30との間に、室内5側からの光線の入射が困難な平坦面31が区画され、この平坦面31が漏洩防止処理(例えば、鏡面加工処理等)されて隣接する湾曲部20間の境界23に対向する。   As shown in the figure, the plurality of convex portions 30 are arranged in a line at a predetermined interval in the direction of the emission surface X of the sheet 10, and are opposed to the plurality of curved portions 20. The sheet 10 is linearly extended in the exit surface Y direction. In the plurality of convex portions 30, a flat surface 31 in which it is difficult for light to enter from the indoor 5 side is defined between the adjacent convex portions 30 and the convex portions 30, and this flat surface 31 is subjected to leakage prevention processing (for example, , Mirror processing, etc.) and face the boundary 23 between the adjacent curved portions 20.

各凸部30は、湾曲部20の幅よりも幅が狭い先細りの断面台形に形成され、周面である一対の傾斜面32・32Aに、入射した自然光が外部に漏洩するのを防止する漏洩防止処理(例えば、鏡面加工処理等)がそれぞれ施されており、平坦な先端面33から自然光が直線的に出射する。   Each convex portion 30 is formed in a tapered trapezoidal cross-sectional shape that is narrower than the width of the curved portion 20, and leaks to prevent the incident natural light from leaking to the pair of inclined surfaces 32 and 32A that are the peripheral surfaces. The prevention process (for example, mirror surface processing etc.) is performed respectively, and natural light is radiate | emitted from the flat front end surface 33 linearly.

凸部30の高さや傾斜面32・32Aの傾斜角度は、室内5の大きさ等に応じて調整される。また、凸部30間の平坦面31は、製造の都合を考慮して広く形成されたり、狭く形成される。凸部30の先端面33における二隅部34は、丸く面取りされると、自然光が予期しない方向に漏洩するおそれがあるので、角張った鋭いエッジであるのが好ましい。   The height of the convex part 30 and the inclination angle of the inclined surfaces 32 and 32A are adjusted according to the size of the room 5 and the like. Further, the flat surface 31 between the convex portions 30 is formed wide or narrow in consideration of manufacturing convenience. Since the two corners 34 of the tip surface 33 of the convex part 30 are rounded and chamfered, natural light may leak in an unexpected direction.

採光レンズシートの製造方法は、特に限定されるものではない。但し、採光レンズシートの先端面33以外に鏡面処理を施す場合、金型のキャビティに加工した鏡面を転写すれば、採光レンズシートの先端面33以外の面に簡易に鏡面処理を施すことができるので、フェニルシリコーンゴム等の成形材料を用い、金型で射出成形する製法が望ましい。   The manufacturing method of a lighting lens sheet is not specifically limited. However, in the case where the mirror surface treatment is performed on the surface other than the front end surface 33 of the daylighting lens sheet, the mirror surface processing can be easily performed on the surface other than the front end surface 33 of the daylighting lens sheet by transferring the processed mirror surface to the cavity of the mold. Therefore, a production method in which a molding material such as phenyl silicone rubber is used and injection molding is performed with a mold is desirable.

上記において、立地条件の悪い建築物1の室内5に快適な環境を創造したり、省エネ・省コストを実現したい場合には、建築物1の窓ガラス2に採光レンズシートを装着して複数の凸部30の配列方向を室内5の上下方向とし、各凸部30の先端面33を室内5の奥の壁面6に向けた後、採光レンズシートに自然光が降り注ぐのを待てば良い。自然光が降り注ぐと、自然光は、図5に示すように、シート10入射面の湾曲部20に入射し、シート10の内部厚さ方向を通過して凸部30の先端面33から室内5に出射され、室内5の壁面6を照射する。   In the above, when a comfortable environment is created in the room 5 of the building 1 with poor location conditions, or when it is desired to realize energy saving and cost saving, a plurality of daylighting lens sheets are attached to the window glass 2 of the building 1 to install a plurality of lighting lens sheets. It is only necessary to wait for natural light to fall on the daylighting lens sheet after the arrangement direction of the projections 30 is the vertical direction of the room 5 and the front end surface 33 of each projection 30 is directed to the inner wall surface 6 of the room 5. When natural light falls, the natural light enters the curved portion 20 of the incident surface of the sheet 10 as shown in FIG. 5, passes through the inner thickness direction of the sheet 10, and exits from the front end surface 33 of the convex portion 30 to the room 5. Then, the wall surface 6 of the room 5 is irradiated.

この際、所定の角度で降り注ぐ自然光は、レンズ機能を有する湾曲部20の表面21に効率的に集光される。また、一部の自然光は、空気層との界面で反射を繰り返し、凸部30間の平坦面31や傾斜面32・32Aから出射することなく、凸部30の先端面33のみから出射される。室内5の壁面6に照射された自然光は、眩しくない間接光として利用され、室内5を明るく照明して照明用エネルギーの消費量削減に資することとなる。   At this time, natural light falling at a predetermined angle is efficiently condensed on the surface 21 of the bending portion 20 having a lens function. Further, some natural light is repeatedly reflected at the interface with the air layer, and is emitted only from the front end surface 33 of the convex portion 30 without being emitted from the flat surface 31 or the inclined surfaces 32 and 32A between the convex portions 30. . Natural light applied to the wall surface 6 of the room 5 is used as indirect light that is not dazzling, and illuminates the room 5 to contribute to a reduction in the amount of energy consumed for illumination.

上記構成によれば、窓ガラス2に採光レンズシートを装着するだけで、自然光採光システムを構築することができるので、自然光の照射時間や日射量に対応する専用の設備(例えば、センサやタイマー、集光用のプリズムやミラーの追尾装置等)を確実に省略することができ、システム設計の自由度を大幅に向上させたり、構成の簡素化やコストの削減を図ることができる。また、採光レンズシートが電力を消費することがないので、照明経費を節減することができ、省エネの向上が大いに期待できる。   According to the above configuration, since a natural light daylighting system can be constructed simply by attaching a daylighting lens sheet to the window glass 2, dedicated equipment (for example, a sensor or timer, The light collecting prism, the mirror tracking device, etc.) can be omitted without fail, and the degree of freedom in system design can be greatly improved, the configuration can be simplified, and the cost can be reduced. In addition, since the daylighting lens sheet does not consume power, the lighting cost can be reduced, and the improvement of energy saving can be greatly expected.

また、シート10の材質を選択して可撓性や屈曲性を付与すれば、シート10を任意の形に曲げることができるので、作業性、取付性、室内5のインテリア性を向上させることが可能になる。さらに、フェニルシリコーンゴム等によりシート10を成形すれば、シート10を薄くして軽量化を図ることもできるので、窓ガラス2にシート10を簡単に貼り付けることができる。   Further, if the material of the seat 10 is selected to give flexibility and bendability, the seat 10 can be bent into an arbitrary shape, so that workability, mountability, and interior of the room 5 can be improved. It becomes possible. Furthermore, if the sheet 10 is formed of phenyl silicone rubber or the like, the sheet 10 can be made thin and light in weight, so that the sheet 10 can be easily attached to the window glass 2.

次に、図6と図7は本発明の第2の実施形態を示すもので、この場合には、各凸部30の上下一対の傾斜面32・32Aのうち、上方の傾斜面32に所定の加工を施し、凸部30の加工した傾斜面32と先端面33とから自然光をそれぞれ出射及び散乱させるようにしている。
上方の傾斜面32に対する加工としては、例えば表面粗さを粗くする加工、複数のドットを形成する加工、半透過印刷する加工等があげられる。
Next, FIGS. 6 and 7 show a second embodiment of the present invention. In this case, the upper inclined surface 32 of the pair of upper and lower inclined surfaces 32 and 32A of each convex portion 30 is predetermined. Thus, natural light is emitted and scattered from the inclined surface 32 and the front end surface 33 processed by the convex portion 30, respectively.
Examples of the processing on the upper inclined surface 32 include processing for increasing the surface roughness, processing for forming a plurality of dots, processing for transflective printing, and the like.

上記において、採光レンズシートに自然光が降り注ぐと、自然光は、シート10入射面の湾曲部20に入射し、シート10の内部厚さ方向を通過して凸部30の傾斜面32と先端面33とからそれぞれ室内5に出射され、室内5の壁面6や天井7を広く照射する。その他の部分については、上記実施形態と略同様であるので説明を省略する。   In the above, when natural light falls on the daylighting lens sheet, the natural light enters the curved portion 20 of the incident surface of the sheet 10, passes through the inner thickness direction of the sheet 10, and the inclined surface 32 and the front end surface 33 of the convex portion 30. Are respectively emitted to the room 5 and widely illuminate the wall surface 6 and the ceiling 7 of the room 5. The other parts are substantially the same as those in the above embodiment, and thus description thereof is omitted.

本実施形態においても上記実施形態と同様の作用効果が期待でき、しかも、各凸部30の上方の傾斜面32から自然光を斜め上方に出射させるので、直線的な自然光を様々な配光の光に変化させ、壁面6の上部や天井7をも照射して室内5の照度を向上させることができるのは明らかである。   Also in this embodiment, the same effect as the above embodiment can be expected, and since natural light is emitted obliquely upward from the inclined surface 32 above each convex portion 30, linear natural light is emitted with various light distributions. It is obvious that the illuminance in the room 5 can be improved by irradiating the upper part of the wall surface 6 and the ceiling 7 as well.

次に、図8は本発明の第3の実施形態を示すもので、この場合には、各凸部30の上下一対の傾斜面32・32のうち、下方の傾斜面32に所定の加工を施し、凸部30の加工した傾斜面32と先端面33とから自然光をそれぞれ出射させるようにしている。   Next, FIG. 8 shows a third embodiment of the present invention. In this case, predetermined processing is performed on the lower inclined surface 32 of the pair of upper and lower inclined surfaces 32 and 32 of each convex portion 30. The natural light is emitted from the inclined surface 32 and the tip surface 33 processed by the convex portion 30.

下方の傾斜面32Aに対する加工としては、特に限定されるものではないが、例えば下方の傾斜面32Aに遮光反射面を形成し、この反射性の傾斜面32Aに上方の傾斜面32からの自然光を反射させる加工等があげられる。具体的な遮光反射面としては、特に限定されるものではないが、例えば白色部分で自然光を反射させ、黒色部分で自然光を遮光する白黒層、自然光を反射させ、かつ遮光する金属層等があげられる。これらは、印刷法や複数の基材の貼り合わせ等の方法で形成することができる。その他の部分については、上記実施形態と略同様であるので説明を省略する。   Processing for the lower inclined surface 32A is not particularly limited. For example, a light-shielding reflecting surface is formed on the lower inclined surface 32A, and natural light from the upper inclined surface 32 is applied to the reflective inclined surface 32A. Examples of processing include reflection. The specific light-shielding reflective surface is not particularly limited, and examples thereof include a black and white layer that reflects natural light at the white portion and blocks natural light at the black portion, and a metal layer that reflects and blocks natural light. It is done. These can be formed by a printing method or a method such as laminating a plurality of base materials. The other parts are substantially the same as those in the above embodiment, and thus description thereof is omitted.

本実施形態においても上記実施形態と同様の作用効果が期待でき、しかも、各凸部30の下方の傾斜面32Aに入射した自然光の一部を反射させ、自然光を斜め上方に出射させるので、壁面6の上部や天井7に自然光を照射して室内5をさらに明るく照明することができるのは明白である。   In the present embodiment, the same effect as that of the above embodiment can be expected, and a part of the natural light incident on the inclined surface 32A below each convex portion 30 is reflected and the natural light is emitted obliquely upward. It is obvious that the interior 5 can be illuminated more brightly by irradiating the upper part of 6 and the ceiling 7 with natural light.

なお、上記実施形態では室内5の窓ガラス2に採光レンズシートを装着した例を示したが、これに限定されるものではない。例えば、建築物1の天窓ガラスに採光レンズシートを装着しても良い。また、室内5の壁面6や天井7に、凸部30からの自然光を反射したり、眩しさを抑えつつ拡散させる二次ミラー、三次ミラーを必要数取り付けても良い。   In the above embodiment, an example in which a daylighting lens sheet is attached to the window glass 2 in the room 5 is shown, but the present invention is not limited to this. For example, a daylighting lens sheet may be attached to the skylight glass of the building 1. Further, a necessary number of secondary mirrors and tertiary mirrors that reflect natural light from the convex portion 30 or diffuse while suppressing glare may be attached to the wall surface 6 and the ceiling 7 of the room 5.

また、窓ガラス2に一枚の採光レンズシートではなく、複数枚の採光レンズシートを装着しても良い。さらに、凸部30の幅を湾曲部20の幅以下にして自然光を適切に出射させることができるのであれば、シート10の出射面X方向に複数の凸部30を一列に連続して配列形成し、隣接する凸部30間の平坦面31を省略しても良い。   Further, a plurality of daylighting lens sheets may be attached to the window glass 2 instead of one daylighting lens sheet. Furthermore, if the width of the convex portion 30 is equal to or smaller than the width of the curved portion 20 and natural light can be emitted appropriately, a plurality of convex portions 30 are continuously arranged in a row in the direction of the emission surface X of the sheet 10. And the flat surface 31 between the adjacent convex parts 30 may be abbreviate | omitted.

本発明に係る採光レンズシートは、例えば建築物や輸送機関の照明分野で使用することができる。   The daylighting lens sheet according to the present invention can be used, for example, in the lighting field of buildings and transportation.

1 建築物
2 窓ガラス(窓)
5 室内
6 壁面
7 天井
10 シート
11 周面
20 湾曲部
21 表面
23 境界
30 凸部
31 平坦面
32 傾斜面
32A 傾斜面
33 先端面
34 隅部
1 Building 2 Window glass (window)
5 Indoor 6 Wall surface 7 Ceiling 10 Sheet 11 Peripheral surface 20 Curved portion 21 Surface 23 Boundary 30 Convex portion 31 Flat surface 32 Inclined surface 32A Inclined surface 33 Tip surface 34 Corner

Claims (3)

建築物の窓に、光透過性を有するシートを取り付け、このシートの入射面に自然光を入射させ、この入射した自然光をシートの出射面から建築物内に出射させる採光レンズシートであって、
シートの入射面に、レンズ機能を発揮する複数の湾曲部を一列に連続して配列形成し、湾曲部を断面略半楕円形とし、
シートの出射面に、複数の湾曲部に対向する複数の凸部を所定の間隔で一列に配列形成し、隣接する凸部と凸部との間に、隣接する湾曲部間の境界に対向する平坦面を区画し、凸部を湾曲部の幅よりも幅の狭い先細りの断面台形に形成してその平坦な先端面から自然光を出射可能とし、
シートの周面、湾曲部の表面、湾曲部のシートの周面に連なる端面、及び隣接する凸部と凸部との間の平坦面に、自然光用の漏洩防止処理をそれぞれ施したことを特徴とする採光レンズシート。
A lighting lens sheet for attaching a light transmissive sheet to a building window , allowing natural light to enter the incident surface of the sheet, and emitting the incident natural light into the building from the exit surface of the sheet,
On the incident surface of the sheet, a plurality of curved portions that exhibit a lens function are continuously arranged in a line, and the curved portions are substantially semi-elliptical in cross section,
A plurality of convex portions opposed to the plurality of curved portions are formed in a line at a predetermined interval on the emission surface of the sheet, and are opposed to the boundary between the adjacent curved portions between the adjacent convex portions. A flat surface is defined, and the convex portion is formed into a tapered trapezoidal shape with a narrower width than the width of the curved portion so that natural light can be emitted from the flat tip surface.
Leakage prevention processing for natural light is performed on the peripheral surface of the sheet, the surface of the curved portion, the end surface connected to the peripheral surface of the curved portion of the sheet, and the flat surface between the adjacent convex portions. A daylighting lens sheet.
シートをフェニルシリコーンゴムにより形成した請求項1記載の採光レンズシート。 The daylighting lens sheet according to claim 1, wherein the sheet is formed of phenyl silicone rubber. 各凸部の一対の傾斜面のうち、一方の傾斜面に自然光用の漏洩防止処理を施し、他方の傾斜面を加工することにより、この他方の傾斜面から自然光を出射させるようにした請求項1又は2記載の採光レンズシート。 The natural light is emitted from the other inclined surface by subjecting one of the inclined surfaces of each convex portion to a natural light leakage prevention process and processing the other inclined surface. The daylighting lens sheet according to 1 or 2.
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