JP2010065514A - Polarizing blind - Google Patents

Polarizing blind Download PDF

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Publication number
JP2010065514A
JP2010065514A JP2008235799A JP2008235799A JP2010065514A JP 2010065514 A JP2010065514 A JP 2010065514A JP 2008235799 A JP2008235799 A JP 2008235799A JP 2008235799 A JP2008235799 A JP 2008235799A JP 2010065514 A JP2010065514 A JP 2010065514A
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JP
Japan
Prior art keywords
louver
blind
louvers
light
polarizing
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Pending
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JP2008235799A
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Japanese (ja)
Inventor
Hiroyuki Negishi
弘行 根岸
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Individual
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Individual
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Priority to JP2008235799A priority Critical patent/JP2010065514A/en
Publication of JP2010065514A publication Critical patent/JP2010065514A/en
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Abstract

<P>PROBLEM TO BE SOLVED: To improve shading performance because a conventional blind does not secure proper darkness due to the occurrence of reflection and leakage of light in a completely shielded state although a light non-transmitting material is used. <P>SOLUTION: A transmitting material with polarizing characteristics is used for louvers, and the louvers are arranged so that polarizing axes between window side polarizing glass and the blind or between the adjacent louvers have orthogonal characteristics. When complete shading is required, it is structured that passing light passes through two polarizing members with orthogonal polarizing axes. The passing light is thereby intercepted by each member to obtain a completely shaded state. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、偏光特性を利用したブラインドに関するものである。   The present invention relates to a blind using polarization characteristics.

一般のブラインドのルーバーは多くがプラスチックあるいは竹片等の不透光材質により形成され、ルーバーが直立していない時、ルーバー間の隙間は開放状態となり、光線は直接入射し、ルーバー面が直立するように調整された時、光線はルーバーにより全面を遮蔽する。
特開2004−332506号公報
Most of the louvers of a general blind are made of an opaque material such as plastic or bamboo, and when the louvers are not upright, the gap between the louvers is open, the light is directly incident, and the louver surface is upright. When adjusted in this way, the light beam is shielded by the louver.
JP 2004-332506 A

解決しようとする問題点は、ルーバーにより、全面遮蔽してもルーバーの材料が明るい素材を使用しているため、ルーバー相互の反射光により、室内を適正暗さにできず、パソコン画面やプロジェクターなどの映像機器を使用する場合、ブラインドからの外乱光や反射光が映像機器に映る欠点があった。
この改善策として、暗幕など使用する方法があるが、映像機器を使用しない場合、適量の採光を得るには調整が難しく、明暗が偏る欠点がある。また、ルーバーに暗い素材を使用するブラインドでは、明るい室内の要求に対応できない欠点を持つ。
The problem to be solved is that the louver is made of a bright material even if it is shielded entirely by the louver, so the reflected light from the louver cannot make the room dark enough, and the computer screen, projector, etc. However, there is a drawback that disturbance light and reflected light from the blinds are reflected on the video equipment.
As an improvement measure, there is a method of using a dark curtain or the like. However, when an image device is not used, adjustment is difficult to obtain an appropriate amount of lighting, and there is a disadvantage that light and dark are biased. In addition, blinds that use dark materials for the louvers have the disadvantage that they cannot meet the demands of a bright room.

本発明は、ブラインドに偏光特性を持つルーバーを配置する。   In the present invention, a louver having polarization characteristics is arranged in the blind.

本発明のブラインドは、完全遮光状態において、窓に設けられた偏光フィルムと偏光特性のあるルーバーにより光の進入が完全に遮断される。また、偏光軸が異なる2種類のルーバーを交互に配置することにより前記方式と同様に、光の進入が完全に遮断できて、従来のブラインドに比べ、室内を暗くすることができる。   In the blind according to the present invention, in the completely light-shielded state, the entrance of light is completely blocked by the polarizing film provided on the window and the louver having polarization characteristics. Further, by alternately arranging two types of louvers having different polarization axes, the entrance of light can be completely blocked as in the above-described method, and the room can be darkened as compared with a conventional blind.

従来品よりも、ブラインド開口時は外部の可視化性能を向上し、完全閉口時は遮光性能を向上することを目的とし、ルーバーに偏光特性を持たせることにより実現した。   The objective is to improve external visualization performance when blinds are open compared to conventional products, and to improve light-shielding performance when fully closed.

図1は、本発明装置の1実施例のブラインドは、偏光フィルム2を貼り付けられた窓ガラス1に設置するものであり、透過特性および偏光特性を有するルーバーL1に、外部光線縦波4、外部光線横波5が入光する状態を示している。ただし、ブラインド枠やルーバー支持部材等は省略してある。また、ルーバーは、多数ある中の2枚を記載した。   FIG. 1 shows a blind according to an embodiment of the present invention, which is installed on a window glass 1 to which a polarizing film 2 is attached. A louver L1 having a transmission characteristic and a polarization characteristic is provided with an external light longitudinal wave 4, The state where the external ray transverse wave 5 enters is shown. However, the blind frame and the louver support member are omitted. In addition, two of the louvers are listed.

外部からの自然光は、一般的に縦波4と横波5で表現される。外部光線縦波4は、偏光軸3の特性を有する偏光フィルム2で透過を阻止されて室内への侵入は出来ない。外部光線横波5は、偏光軸3の特性を有する偏光フィルム2を透過するが、偏光軸S1の特性を有するルーバーL1で透過を阻止される。   Natural light from the outside is generally expressed by a longitudinal wave 4 and a transverse wave 5. The external longitudinal beam 4 is blocked from being transmitted by the polarizing film 2 having the characteristic of the polarization axis 3 and cannot enter the room. The external ray transverse wave 5 is transmitted through the polarizing film 2 having the characteristic of the polarization axis 3, but is prevented from being transmitted by the louver L1 having the characteristic of the polarization axis S1.

図1の例では、ルーバーL1、L2が開口と完全遮光の中間の位置にあり、ルーバーL1,L2の隙間からの外部光線横波5は、室内へ導入することができる。   In the example of FIG. 1, the louvers L1 and L2 are at a position intermediate between the opening and the complete light shielding, and the external ray transverse wave 5 from the gap between the louvers L1 and L2 can be introduced into the room.

図2は、ルーバーL1,L2が完全遮光できる位置を示している。ルーバーL1とルーバーL2には隙間がなく、外部光線横波(図示しない)は、縦波のみを通過させる偏光軸S1、S2を持つルーバーL1,L2で完全に遮断され、外部光線は、室内に侵入できない。 FIG. 2 shows positions where the louvers L1 and L2 can be completely shielded from light. There is no gap between louver L1 and louver L2, and external light transverse waves (not shown) are completely blocked by louvers L1 and L2 having polarization axes S1 and S2 that allow only longitudinal waves to pass, and external light enters the room. Can not.

図3の例は、偏光特性を持たない窓に使用するブラインドのルーバーで概ね開口状態を示している。ルーバーL3,L5の偏光軸S3,S5は、ルーバー長手方向と平行とする。前記ルーバーと隣接するルーバーL4,L6の偏光軸S4,S6は、ルーバー長手方向に対して90°の向きとなるように配置されている。
開口に近い状態でのブラインド通過光線(図示しない)は、一部ルーバーにより遮られる部分も有するが、縦波もしくは横波のどちらか一方を透過させる特性を持つルーバーのため、ブラインド外部の景色を可視化できる。
The example of FIG. 3 shows a generally open state with a blind louver used for a window having no polarization characteristic. The polarization axes S3 and S5 of the louvers L3 and L5 are parallel to the louver longitudinal direction. The polarization axes S4 and S6 of the louvers L4 and L6 adjacent to the louver are arranged so as to be oriented at 90 ° with respect to the longitudinal direction of the louver.
Light passing through the blind near the opening (not shown) is partially obscured by the louver, but because it is a louver that has the property of transmitting either longitudinal waves or transverse waves, the scenery outside the blind is visualized. it can.

図4は、図3のブラインド完全遮光時のルーバー断面図を示している。この配置は、隣接するルーバーとの間隔が、ルーバー縦幅の1/2ずれて重なる全二重構造となっている。ブラインド照射される外部光4は、ブラインドの全ての照射位置で、ルーバーLnとルーバーLn−1により遮断する構造になっている。外部光4は、ルーバーLnにより縦波もしくは横波の一方の波が吸収され、透過した残りの波は、ルーバーLn−1により侵入を阻止される。このように外部光4は、90°異なる偏光軸を持つ2つのルーバーにより、完全遮光状態となる。   FIG. 4 is a cross-sectional view of the louver when the blind of FIG. 3 is completely shielded. This arrangement has a full-duplex structure in which the interval between adjacent louvers is overlapped with a deviation of 1/2 the louver vertical width. The external light 4 irradiated with the blind is structured to be blocked by the louver Ln and the louver Ln-1 at all irradiation positions of the blind. In the external light 4, one of the longitudinal wave and the transverse wave is absorbed by the louver Ln, and the remaining wave that has been transmitted is blocked from entering by the louver Ln−1. As described above, the external light 4 is completely shielded by the two louvers having the polarization axes different by 90 °.

偏光軸は、水平と垂直方向の例を示したが−45°と+45°など直交する組合せを用いることにより同様な効果が得られる。また、偏光軸を直交としたが完全遮光が暗すぎる場合には、角度を変えても良い。 Although the example of the polarization axis in the horizontal and vertical directions has been shown, the same effect can be obtained by using orthogonal combinations such as −45 ° and + 45 °. If the polarization axes are orthogonal, but the complete light shielding is too dark, the angle may be changed.

図1から図4の実施例では、横型ブラインドを例に説明したが、図5に示すように縦型ブラインドにも適用できる。 In the embodiment shown in FIGS. 1 to 4, the horizontal blind has been described as an example, but the present invention can also be applied to a vertical blind as shown in FIG.

偏光ブラインドの実施方法を示した説明図である。(実施例1)It is explanatory drawing which showed the implementation method of a polarizing blind. (Example 1) 完全遮光状態を示した説明図である。(実施例1)It is explanatory drawing which showed the complete light-shielding state. (Example 1) 偏光ブラインドの実施方法を示した説明図である。(実施例2)It is explanatory drawing which showed the implementation method of a polarizing blind. (Example 2) 完全遮光状態を示したルーバー断面図である。(実施例2)It is louver sectional drawing which showed the complete light-shielding state. (Example 2) 縦型ブラインド説明図である。(応用例)It is vertical blind explanatory drawing. (Application example)

符号の説明Explanation of symbols

1 窓ガラス
2 偏光フィルム
3 偏光軸
4 外部光線縦波
5 外部光線横波
L1,L2..Ln ルーバー
S1,S2..Sn ルーバー偏光軸
DESCRIPTION OF SYMBOLS 1 Window glass 2 Polarizing film 3 Polarization axis 4 External light longitudinal wave 5 External light transverse wave
L1, L2. . Ln Louver
S1, S2. . Sn louver polarization axis

Claims (2)

複数本のルーバーが長手方向に平行配置されており、前記ルーバーが外部操作により同期して傾斜角を調整できるブラインドにおいて、ルーバー本体に偏光部材を用いたことを特徴とするブラインド。   A blind in which a plurality of louvers are arranged in parallel in the longitudinal direction, and the louver can adjust an inclination angle in synchronization with an external operation, and a polarizing member is used in the louver body. 一定方向の偏光軸を有する第1のルーバーと、第1のルーバーの偏光軸と直交する偏光軸を有する第2のルーバーを有し、前記第1のルーバーと第2のルーバーが交互に配置され、ルーバー最大遮光傾斜角において各ルーバーが短手方向に、全二重構造になるように各ルーバーを配置したことを特徴とする請求項1に記載のブラインド。 A first louver having a polarization axis in a certain direction; and a second louver having a polarization axis orthogonal to the polarization axis of the first louver, wherein the first louver and the second louver are alternately arranged. The blind according to claim 1, wherein each louver is arranged in a short-side direction so as to have a full-duplex structure at a maximum louver shading inclination angle.
JP2008235799A 2008-09-15 2008-09-15 Polarizing blind Pending JP2010065514A (en)

Priority Applications (1)

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JP2008235799A JP2010065514A (en) 2008-09-15 2008-09-15 Polarizing blind

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JP2008235799A JP2010065514A (en) 2008-09-15 2008-09-15 Polarizing blind

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015047013A1 (en) * 2013-09-30 2015-04-02 주식회사 엘지화학 Optical device
CN104854492A (en) * 2013-09-30 2015-08-19 Lg化学株式会社 Optical element
JP5854475B2 (en) * 2010-08-02 2016-02-09 株式会社ニチベイ blind

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5854475B2 (en) * 2010-08-02 2016-02-09 株式会社ニチベイ blind
WO2015047013A1 (en) * 2013-09-30 2015-04-02 주식회사 엘지화학 Optical device
CN104854492A (en) * 2013-09-30 2015-08-19 Lg化学株式会社 Optical element
JP2016506533A (en) * 2013-09-30 2016-03-03 エルジー・ケム・リミテッド Optical element
US9791607B2 (en) 2013-09-30 2017-10-17 Lg Chem, Ltd. Optical element

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