JPH0497222A - Optical element - Google Patents
Optical elementInfo
- Publication number
- JPH0497222A JPH0497222A JP21184190A JP21184190A JPH0497222A JP H0497222 A JPH0497222 A JP H0497222A JP 21184190 A JP21184190 A JP 21184190A JP 21184190 A JP21184190 A JP 21184190A JP H0497222 A JPH0497222 A JP H0497222A
- Authority
- JP
- Japan
- Prior art keywords
- liquid crystal
- voltage
- composite material
- optical element
- crystal material
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
- 230000003287 optical effect Effects 0.000 title claims abstract description 20
- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 53
- 239000000463 material Substances 0.000 claims abstract description 48
- 239000002131 composite material Substances 0.000 claims abstract description 31
- 239000002861 polymer material Substances 0.000 claims abstract description 29
- 239000000203 mixture Substances 0.000 claims abstract description 15
- 230000033001 locomotion Effects 0.000 claims abstract description 12
- 239000000758 substrate Substances 0.000 claims description 17
- 239000000126 substance Substances 0.000 claims description 13
- 230000005540 biological transmission Effects 0.000 abstract description 4
- 238000010276 construction Methods 0.000 abstract 1
- 229920005989 resin Polymers 0.000 description 9
- 239000011347 resin Substances 0.000 description 9
- 239000003566 sealing material Substances 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000003822 epoxy resin Substances 0.000 description 3
- 150000002500 ions Chemical class 0.000 description 3
- 229920000647 polyepoxide Polymers 0.000 description 3
- 238000002834 transmittance Methods 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 2
- WLPATYNQCGVFFH-UHFFFAOYSA-N 2-phenylbenzonitrile Chemical group N#CC1=CC=CC=C1C1=CC=CC=C1 WLPATYNQCGVFFH-UHFFFAOYSA-N 0.000 description 1
- 101150034533 ATIC gene Proteins 0.000 description 1
- 239000005264 High molar mass liquid crystal Substances 0.000 description 1
- SWLVFNYSXGMGBS-UHFFFAOYSA-N ammonium bromide Chemical compound [NH4+].[Br-] SWLVFNYSXGMGBS-UHFFFAOYSA-N 0.000 description 1
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 230000000739 chaotic effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229910003437 indium oxide Inorganic materials 0.000 description 1
- PJXISJQVUVHSOJ-UHFFFAOYSA-N indium(iii) oxide Chemical compound [O-2].[O-2].[O-2].[In+3].[In+3] PJXISJQVUVHSOJ-UHFFFAOYSA-N 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000031700 light absorption Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- WGHUNMFFLAMBJD-UHFFFAOYSA-M tetraethylazanium;perchlorate Chemical compound [O-]Cl(=O)(=O)=O.CC[N+](CC)(CC)CC WGHUNMFFLAMBJD-UHFFFAOYSA-M 0.000 description 1
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 1
- 229910001887 tin oxide Inorganic materials 0.000 description 1
Landscapes
- Liquid Crystal (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
Description
【発明の詳細な説明】
［発明の技術分野］
この発明は液晶材料を用いた光学素子に関す［発明の背
景］
従来、ワードプロセッサやパーソナルコンピュータ等の
デイスプレィとして、Ｔ Ｎ （ｔｗｉｓｔｅｄｎｅｍ
ａｔｉｃ）型やＳ Ｔ Ｎ （Ｓｕｐｅｒ ｔｗｉＳｔ
ｅｄ ｎｅｍａｔｉｃ）型の液晶表示パネルが広く知ら
れている。この液晶表示パネルは光の吸収、透過の制御
をするために偏光板を使用しているため、偏光板が光の
偏光方向を揃えるために入射光の半分以上を吸収してし
まう、このため、透過光の明るさは最大でも入射光の半
分以下になり、表示が暗くなるという問題があった。[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to an optical element using a liquid crystal material [Background of the Invention] Conventionally, T N (twisted name
atic) type and S T N (Super twiSt) type.
(ed nematic) type liquid crystal display panels are widely known. This liquid crystal display panel uses a polarizing plate to control light absorption and transmission, so the polarizing plate absorbs more than half of the incident light in order to align the polarization direction of the light. The brightness of the transmitted light is at most less than half of the incident light, resulting in a dark display.
これを解決するものとして、最近では、偏光板を使わな
いで光の透過と散乱が制御できる光学素子が開発されて
いる。この種の光学素子は、高分子材料と液晶材料を混
合して複合材料を構成し、この複合材料を一対の透明な
電極基板間に封入してなり、複合材料中の液晶材料の配
向状態によって屈折率が異なる性質を利用して光の透過
と散乱を制御するようになっている。To solve this problem, optical elements have recently been developed that can control the transmission and scattering of light without using polarizing plates. This type of optical element is made by mixing a polymer material and a liquid crystal material to form a composite material, and encapsulating this composite material between a pair of transparent electrode substrates. The property of having different refractive indexes is used to control the transmission and scattering of light.
［従来技術の問題点］
しかし、上述した光学素子においては、対向する電極基
板に電圧が印加されていない状態では、高分子材料と液
晶材料との屈折率の差により複合材料に入射する光が散
乱して白濁状態となり、また電圧が印加されると液晶材
料が配向し、高分子材料と液晶材料の屈折率がほぼ等し
くなり、これにより複合材料に入射する光が散乱せずに
透過して透明な状態となる。このため、上述した光学素
子では、光を透過させたい場合には常に電圧を印加し続
けなてればならないという欠点がある。[Problems with the prior art] However, in the optical element described above, when no voltage is applied to the opposing electrode substrates, the light incident on the composite material is affected by the difference in refractive index between the polymer material and the liquid crystal material. It scatters and becomes cloudy, and when a voltage is applied, the liquid crystal material aligns, and the refractive index of the polymer material and liquid crystal material become almost equal, so that light incident on the composite material is transmitted without being scattered. It becomes transparent. For this reason, the above-mentioned optical element has a drawback in that a voltage must be constantly applied if it is desired to transmit light.
［発明の目的］
この発明は上述した事情に鑑みてなされたもので、その
目的とするところは、電圧を印加しないときに光を透過
させることができ、電圧を印加したときに光を散乱させ
ることができ、かつ構造が簡単な光学素子を提供するこ
とである。[Object of the invention] This invention was made in view of the above-mentioned circumstances, and its purpose is to transmit light when no voltage is applied, and scatter light when a voltage is applied. It is an object of the present invention to provide an optical element that can be used in various ways and has a simple structure.
［発明の要点］
この発明は上述した目的を達成するために、高分子材料
と液晶材料を混合した複合材料を対向する電極が形成さ
れた一対の透明な電極基板間に封入した光学素子におい
て、前記複合材料は、高分子材料と、前記対向する電極
間に電圧が印加されていない状態における屈折率が前記
高分子材料の屈折率とほぼ等しい液晶材料との混合物で
、かつこの混合物に、前記対向する電極間に印加される
電圧によって液晶分子に撹乱運動を起すイオン物質が添
加され、電圧印加時にイオン物質のイオン流によって生
じる撹乱運動により前記液晶材料の配向状態を変化させ
て入射光を散乱させることを要点とする。[Summary of the Invention] In order to achieve the above-mentioned object, the present invention provides an optical element in which a composite material in which a polymer material and a liquid crystal material are mixed is sealed between a pair of transparent electrode substrates on which opposing electrodes are formed. The composite material is a mixture of a polymer material and a liquid crystal material whose refractive index in a state where no voltage is applied between the opposing electrodes is approximately equal to the refractive index of the polymer material, and the mixture includes the An ionic substance that causes a disturbance movement is added to the liquid crystal molecules by a voltage applied between opposing electrodes, and the disturbance movement caused by the ion flow of the ionic substance when the voltage is applied changes the orientation state of the liquid crystal material and scatters the incident light. The main point is to
［実施例］
以下、第１図および第２図を参照して、この発明の詳細
な説明する。[Example] The present invention will be described in detail below with reference to FIGS. 1 and 2.
第１図は第１実施例を示す、この図において、ｌ、２は
ガラス等の透明基板であり、上下に対向して配置されて
いる。各透明基板１，２の対向面にはＩＴＯ（酸化イン
ジウムと酸化スズの混合物）等の透明電極３．４がパタ
ーン形成されている・そして、各透明基板１．２間にお
ける周辺部分ニハシール材５が枠状に設けられ、このシ
ール材５によって囲まれた透明基板１．２間には複合材
料６が封入されている。複合材料６は高分子材料７と適
量のイオン物質９が添加された液晶材料８を混合したも
のである。この場合、高分子材料７としては１例えば紫
外線硬化型樹脂等の感光性樹脂が用いられる。また、液
晶材料８としては、屈折率異方性Δｎが大きく、かつバ
ルクの屈折率が高分子材料７の屈折率とほぼ等しい液晶
組成物が用いられ、この組成物には例えばシアノビフェ
ニール系の液晶化合物が用いられている。そして、高分
子材料７中に分散された液晶材料８は。FIG. 1 shows a first embodiment. In this figure, reference numerals 1 and 2 are transparent substrates made of glass or the like, which are arranged vertically to face each other. A pattern of transparent electrodes 3.4 made of ITO (a mixture of indium oxide and tin oxide) or the like is formed on the opposing surfaces of each of the transparent substrates 1 and 2, and a sealing material 5 in the peripheral area between each transparent substrate 1.2. is provided in the shape of a frame, and a composite material 6 is sealed between the transparent substrates 1 and 2 surrounded by the sealing material 5. The composite material 6 is a mixture of a polymer material 7 and a liquid crystal material 8 to which an appropriate amount of an ionic substance 9 is added. In this case, the polymer material 7 used is, for example, a photosensitive resin such as an ultraviolet curable resin. Further, as the liquid crystal material 8, a liquid crystal composition having a large refractive index anisotropy Δn and a bulk refractive index substantially equal to the refractive index of the polymer material 7 is used, and this composition includes, for example, a cyanobiphenyl-based material. Liquid crystal compounds are used. The liquid crystal material 8 dispersed in the polymer material 7 is.
この高分子材料７に応力を加わえる等の手法により液晶
分子を所定の方向に配向させておくことが望ましい、さ
らに、イオン物質９は透明電極３゜４に電圧が印加され
たときに液晶分子に撹乱運動を起させるものであり、例
えばテトラ・ブチル、アンモニウム・ブロマイド、テト
ラ・エチル・アンモニウム・パークロレイト、テトラ・
チャフルバレン等が用いられる。そして、これらの混合
状態は、高分子材料７と液晶材料８の混合比が１＝９〜
９：１程度であればよいが、高分子材料７中で液晶材料
８がつながり合う所謂、ＰＮ（ｐｏｌｙｍｅｒ ｎｅ
ｔｗｏｒｋ）型の場合には、高分子材料７と液晶材料８
の混合比がｌ：９〜４：６程度の割合であり、高分子材
料７中に液晶材料８が５割以上混在する。また、イオン
物質９は高分子材料７と液晶材料８の混合物に対して０
．１〜１０重量％程度の少量を添加するだけでよい。It is desirable to orient the liquid crystal molecules in a predetermined direction by applying stress to the polymer material 7, etc. Furthermore, the ionic material 9 causes the liquid crystal molecules to align when a voltage is applied to the transparent electrodes 3.4. For example, tetra butyl, ammonium bromide, tetra ethyl ammonium perchlorate, tetra
Chafulbaren etc. are used. These mixed states are such that the mixing ratio of the polymer material 7 and the liquid crystal material 8 is 1=9~
The ratio of about 9:1 is sufficient, but the so-called PN (polymer ne
(work) type, the polymer material 7 and the liquid crystal material 8
The mixing ratio is about 1:9 to 4:6, and more than 50% of the liquid crystal material 8 is mixed in the polymer material 7. Further, the ionic substance 9 is 0% for the mixture of the polymer material 7 and the liquid crystal material 8.
．． It is sufficient to add only a small amount of about 1 to 10% by weight.
このような光学素子を製造する場合には、まず、高分子
材料７としてモノマまたはオリゴマの紫外線硬化型樹脂
を用意し、この紫外線硬化型樹脂と少量のイオン物質９
を添加した液晶材料８を混合して、複合材料６を形成す
る。そして、この複合材料６を上下一対の透明基板ｌ、
２間に封入する際には、透明電極３．４がパターン形成
された透明基板ｌ、２をシール材５で所定間隔を介して
接合し、この間隙に前記複合材料６を注入し、その注入
口を封止した後、紫外線を照射して高分子材料をポリマ
化する。あるいは、透明基板１．２の一方、例えば下側
の透明基板ｌの透明電極３側の面に複合材料６をコーテ
ィングした上、下側の透明基板２でシール材５と共に挟
むことにより、複合材料６を封入し、しかる後、紫外線
を照射して紫外線硬化型樹脂をポリマ化する。これによ
り、高分子材料７中に液晶材料８がつながり合ったＰＮ
型の光学素子が得られる。なお、透明基板ｌ、２の対向
間隔を一定に保つために、ギャップ材（図示せず）を設
ける場合には、複合材料６をコーティングした後にギャ
ップ材を散布してもよく、またギャップ材を予め複合材
料６中に混合しておいてもよい。When manufacturing such an optical element, first, a monomer or oligomer ultraviolet curable resin is prepared as the polymer material 7, and this ultraviolet curable resin and a small amount of ionic substance 9 are combined.
The composite material 6 is formed by mixing the liquid crystal material 8 to which the liquid crystal material 8 is added. Then, this composite material 6 is attached to a pair of upper and lower transparent substrates l,
2, the transparent substrates 1 and 2 on which transparent electrodes 3.4 are patterned are joined with a sealing material 5 at a predetermined interval, and the composite material 6 is injected into this gap. After sealing the inlet, the polymer material is polymerized by irradiation with ultraviolet light. Alternatively, the composite material 6 can be coated on one side of the transparent substrate 1.2, for example, the surface of the lower transparent substrate l on the transparent electrode 3 side, and then sandwiched between the lower transparent substrate 2 and the sealing material 5. 6 is sealed, and then irradiated with ultraviolet rays to polymerize the ultraviolet curable resin. This creates a PN structure in which the liquid crystal material 8 is connected to each other in the polymer material 7.
A molded optical element is obtained. In addition, when providing a gap material (not shown) in order to keep the opposing distance between the transparent substrates 1 and 2 constant, the gap material may be sprayed after coating the composite material 6, or the gap material may be sprayed after coating the composite material 6. It may be mixed into the composite material 6 in advance.
このように、上述した光学素子によれば、以下のような
作用効果を有する。上下の透明基板ｌ、２の各透明電極
３．４に電圧が印加されない状態では、複合材料６の高
分子材料７と液晶材料８の屈折率がほぼ等しく、かつイ
オン物質９による撹乱運動が生じないので、複合材料６
中に入射した光は散乱せずにそのまま透過する。この場
合、液晶分子が所定の方向に配向していれば、さらに透
過率が高い、そして、透明基板１，２の互いに対向し合
う透明電極３．４に電圧が印加されると、イオン物質９
によって液晶分子に撹乱運動が生じ、この撹乱運動と、
液晶の複屈折性とによって、入射光は液晶層で散乱を起
し、光学素子の表示が白濁状態となる。したがって、こ
のような光学素子によれば、光を透過させたい場合に、
常に電圧を印加し続ける必要がないので、消費電極が低
減でき、しかも偏光板を必要としないので、透過率が高
く、透明度がよいばかりか、従来のＴＮ型やＳＴＮ型の
液晶表示パネルのように配向膜やラビング処理が不要な
ので、構造が極めて簡単となる。As described above, the optical element described above has the following effects. When no voltage is applied to each of the transparent electrodes 3.4 of the upper and lower transparent substrates 1 and 2, the refractive index of the polymer material 7 of the composite material 6 and the liquid crystal material 8 are approximately equal, and a disturbed movement by the ionic substance 9 occurs. Composite material 6
Light that enters it passes through without being scattered. In this case, if the liquid crystal molecules are oriented in a predetermined direction, the transmittance is even higher.
This causes a disturbance movement in the liquid crystal molecules, and this disturbance movement and
Due to the birefringence of liquid crystal, incident light is scattered in the liquid crystal layer, resulting in a cloudy display on the optical element. Therefore, according to such an optical element, when it is desired to transmit light,
Since there is no need to constantly apply a voltage, electrode consumption can be reduced, and since a polarizing plate is not required, not only is the transmittance high and transparency is good, but it is also similar to conventional TN type and STN type liquid crystal display panels. Since no alignment film or rubbing treatment is required, the structure is extremely simple.
なお、上述した実施例では高分子材料７として紫外線硬
化型樹脂等の感光性樹脂を用いたが、これに限らず、例
えば主剤と硬化剤とからなる２液硬化型エポキシ樹脂を
用いても良い、この場合には、時間の経過と共に硬化剤
が硬化するので、硬化する前に複合材料を注入やコーテ
ィング等により上下の透明基板ｌ、２間に封入すればよ
い、また、この複合材料においては、２液硬化型エポキ
シ樹脂の硬化剤とイオン物質９を添加した液晶材料８を
混合した上、これらを主剤と混合することにより、２液
硬化型エポキシ樹脂中に液晶材料８をつながり合った状
態で５割以上混在させることができる。In addition, in the above-mentioned embodiment, a photosensitive resin such as an ultraviolet curable resin was used as the polymer material 7, but the invention is not limited to this, and for example, a two-component curable epoxy resin consisting of a main resin and a curing agent may be used. In this case, since the curing agent hardens over time, the composite material can be sealed between the upper and lower transparent substrates 1 and 2 by injection or coating before it hardens. By mixing the curing agent of the two-component curable epoxy resin and the liquid crystal material 8 to which the ionic substance 9 has been added, and then mixing these with the main resin, the liquid crystal material 8 is connected in the two-component curable epoxy resin. It is possible to mix more than 50%.
第２図は第２実施例を示す、この光学素子は。FIG. 2 shows a second embodiment of this optical element.
上述した第１実施例のものと、複合材料ｌＯが異なるだ
けで、他の部分は同一構造とされている。The only difference from the first embodiment described above is the composite material IO, and the other parts have the same structure.
すなわち、この複合材料ｌＯは、高分子材料７中に液晶
材料８がつながり合わずに不連続な状態で混在する所謂
、Ｆ Ｄ （ｐｏｌｙｍｅｒ ｄｉｓｐｅｒＳｅｄ）型
のものであり、高分子材料７とイオン物質９を添加した
液晶材料８を混合したものである。この場合、複合材料
１０の各物質は第１実施例と同じものであるが、その混
合比は第１実施例と異なる。すなわち、高分子材料７と
液晶材料８の混合比は５：５〜９：ｌ程度であり、イオ
ン物質９は第１実施例と同程度の少量を添加すればよい
、これにより、高分子材料７中における液晶材料８は５
割以下と少なくなり、液晶材料８がつながり合わないＦ
Ｄ型の複合材料１０が得られる。この複合材料１０にお
いても、液晶材料１２はそのバルクの屈折率が高分子材
料１１の屈折率とほぼ等しく、かつ屈折率異方性Δｎが
大きな液晶組成物が用いられる。そしてこの場合、複合
材料１０中の液晶分子が所定の方向に配向してることが
望ましい、このような光学素子においても、前述した実
施例と同様の作用効果があることは言うまでもない。That is, this composite material IO is of the so-called FD (polymer disperSed) type in which the liquid crystal material 8 is mixed in a discontinuous state without being connected to each other in the polymer material 7, and the polymer material 7 and the ionic material This is a mixture of liquid crystal material 8 to which 9 is added. In this case, each substance of the composite material 10 is the same as in the first embodiment, but the mixing ratio thereof is different from that in the first embodiment. That is, the mixing ratio of the polymer material 7 and the liquid crystal material 8 is about 5:5 to 9:l, and the ionic substance 9 only needs to be added in a small amount similar to that in the first embodiment. The liquid crystal material 8 in 7 is 5
F becomes less than 100%, and the liquid crystal material 8 is not connected to each other.
A D-shaped composite material 10 is obtained. In this composite material 10 as well, a liquid crystal composition is used as the liquid crystal material 12 whose bulk refractive index is approximately equal to the refractive index of the polymer material 11 and whose refractive index anisotropy Δn is large. In this case, it is needless to say that such an optical element, in which it is desirable that the liquid crystal molecules in the composite material 10 are oriented in a predetermined direction, has the same effect as the above embodiment.
なお、この発明の光学素子は、光を遮るブラインド、光
シャッタ等として使用できるほか、電気光学的に情報を
表示するデイスプレィ等として使用することもできる。The optical element of the present invention can be used not only as a blind that blocks light, an optical shutter, etc., but also as a display that displays information electro-optically.
［発明の効果］
以上詳細に説明したように、この発明によれば、電圧を
印加しない状態で高分子材料と液晶材料の屈折率がほぼ
等しい混合物に、対向する電極間に印加される電圧によ
って液晶分子が撹乱運動を起すイオン物質を添加して複
合材料を構成したので、複合材料に電圧を印加すると、
イオン物質のイオン流によって撹乱運動が生じ、この撹
乱運動により前記液晶材料の配向状態を変化させて入射
光を散乱させることができ、かつ電圧を印加しないとき
にはイオン流によって撹乱運動が発生せず、光を透過さ
せることができる。このため、光を透過させたい場合に
、常に電圧を印加し続ける必要がなく、消費電極を低減
でき、しかも偏光板を必要としないので、透過率がよく
、かつ構造が簡単で、安価に製作することかでざる。[Effects of the Invention] As explained in detail above, according to the present invention, a mixture of a polymer material and a liquid crystal material having substantially the same refractive index in a state where no voltage is applied is heated by a voltage applied between opposing electrodes. The composite material was constructed by adding an ionic substance that causes the liquid crystal molecules to move in a chaotic manner, so when a voltage is applied to the composite material,
The ion flow of the ionic substance causes a disturbance motion, and this disturbance motion can change the alignment state of the liquid crystal material and scatter the incident light, and when no voltage is applied, the ion flow does not cause the disturbance motion; Can transmit light. Therefore, when you want to transmit light, there is no need to keep applying a voltage all the time, reducing the consumption of electrodes.Furthermore, there is no need for a polarizing plate, so the transmittance is good, the structure is simple, and it can be manufactured at low cost. There's nothing to do.
ｌ、２・・・・・・透明基板、３．４・・・・・・透明
電極。l, 2...Transparent substrate, 3.4...Transparent electrode.
６．１０・・・・・・複合材料、７・・・・・・高分子
材料、８・・・・・・液晶材料、９・・・・・・イオン
物質。6.10...Composite material, 7...Polymer material, 8...Liquid crystal material, 9...Ionic substance.
カシオ計算機株式会社Casio Computer Co., Ltd.
Claims (1)
電極が形成された一対の透明な電極基板間に封入した光
学素子において、 前記複合材料は、高分子材料と、前記対向する電極間に
電圧が印加されていない状態における屈折率が前記高分
子材料の屈折率とほぼ等しい液晶材料との混合物で、か
つこの混合物に、前記対向する電極間に印加される電圧
によって液晶分子に撹乱運動を起すイオン物質が添加さ
れていることを特徴とする光学素子。[Claims] An optical element in which a composite material in which a polymeric material and a liquid crystal material are mixed is sealed between a pair of transparent electrode substrates on which opposing electrodes are formed, wherein the composite material includes a polymeric material, a liquid crystal material, and a liquid crystal material. A mixture with a liquid crystal material whose refractive index in a state where no voltage is applied between the opposing electrodes is approximately equal to the refractive index of the polymer material, and when a voltage is applied between the opposing electrodes to this mixture, a liquid crystal material is added. An optical element characterized by having an ionic substance added to molecules that causes disturbance motion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21184190A JP2940100B2 (en) | 1990-08-10 | 1990-08-10 | Optical element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21184190A JP2940100B2 (en) | 1990-08-10 | 1990-08-10 | Optical element |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0497222A true JPH0497222A (en) | 1992-03-30 |
| JP2940100B2 JP2940100B2 (en) | 1999-08-25 |
Family
ID=16612474
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21184190A Expired - Lifetime JP2940100B2 (en) | 1990-08-10 | 1990-08-10 | Optical element |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2940100B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5573059A (en) * | 1994-02-21 | 1996-11-12 | Kabushiki Kaisha Toshiba | Air conditioning machine |
-
1990
- 1990-08-10 JP JP21184190A patent/JP2940100B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5573059A (en) * | 1994-02-21 | 1996-11-12 | Kabushiki Kaisha Toshiba | Air conditioning machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2940100B2 (en) | 1999-08-25 |
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