JPS63163321A - Contact lens - Google Patents
Contact lensInfo
- Publication number
- JPS63163321A JPS63163321A JP31255686A JP31255686A JPS63163321A JP S63163321 A JPS63163321 A JP S63163321A JP 31255686 A JP31255686 A JP 31255686A JP 31255686 A JP31255686 A JP 31255686A JP S63163321 A JPS63163321 A JP S63163321A
- Authority
- JP
- Japan
- Prior art keywords
- contact lens
- liquid crystal
- temperature
- temperatures
- film
- 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
- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 27
- 239000004986 Cholesteric liquid crystals (ChLC) Substances 0.000 claims abstract description 8
- 230000036760 body temperature Effects 0.000 claims description 5
- 239000003086 colorant Substances 0.000 abstract 3
- 238000000034 method Methods 0.000 description 5
- 238000005191 phase separation Methods 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 108010010803 Gelatin Proteins 0.000 description 1
- 229920000084 Gum arabic Polymers 0.000 description 1
- 239000004988 Nematic liquid crystal Substances 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 241000978776 Senegalia senegal Species 0.000 description 1
- 239000004990 Smectic liquid crystal Substances 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 235000010489 acacia gum Nutrition 0.000 description 1
- 239000000205 acacia gum Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 229920000159 gelatin Polymers 0.000 description 1
- 239000008273 gelatin Substances 0.000 description 1
- 235000019322 gelatine Nutrition 0.000 description 1
- 235000011852 gelatine desserts Nutrition 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 229920001477 hydrophilic polymer Polymers 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
Landscapes
- Eyeglasses (AREA)
Abstract
Description
【発明の詳細な説明】 （イ）産業上の利用分野 本発明は、コンタクトレンズに関する。[Detailed description of the invention] (b) Industrial application fields The present invention relates to contact lenses.
（ロ）従来技術とその問題点
一般に、コンタクトレンズは、眼鏡に比べて視野が広く
なり、最近は、ソフトコンタクトレンズなども開発され
、着脱の不便さも解消されつつあるため、近年、非常に
普及しつつある。しかしながら、小さいものであるため
に、落としやすく、落とした場合には、透明であるため
に、探すのが困難であるという難点がある。(b) Conventional technology and its problems In general, contact lenses have a wider field of vision than glasses, and soft contact lenses have recently been developed, eliminating the inconvenience of putting them on and taking them off, so they have become very popular in recent years. It is being done. However, because it is small, it is easy to drop, and if it is dropped, it is difficult to find it because it is transparent.
本発明は、上述の点に鑑みて為されたものであって、落
としたような場合に探すのが容易なコンタクトレンズを
提供することを目的とする。The present invention has been made in view of the above-mentioned points, and an object of the present invention is to provide a contact lens that is easy to find if dropped.
（ハ）問題点を解決するための手段
本発明では、温度によって散乱光の波長が変化するとい
う液晶の性質に着目し、体温付近の温度では、無色透明
で、かつ、それ以外の温度では、着色する液晶をコンタ
クトレンズに設けている。(c) Means for Solving the Problems The present invention focuses on the property of liquid crystals that the wavelength of scattered light changes depending on temperature. Contact lenses are equipped with colored liquid crystals.
（ニ）作用
上記構成によれば、コンタクトレンズを落としてその温
度が体温付近の温度から変化した場合には、コンタクト
レンズが着色することになる。(D) Effect According to the above configuration, when the contact lens is dropped and its temperature changes from around body temperature, the contact lens becomes colored.
（ホ）実施例
以下、図面によって本発明の実施例について詳細に説明
する。第１図は、本発明の一実施例のコンタクトレンズ
の断面図であり、第２図はその一部の拡大図である。こ
の実施例のコンタクトレンズｌは、コンタクトレンズ本
体２と、このコンタクトレンズ本体２の表面に形成され
た液晶の膜３から成る。コンタクトレンズ本体２は、従
来と同様のコンタクトレンズである。液晶の＠３は、後
述するマイクロカプセル化技術により第２図に示される
ようにマイクロカプセル化された液晶４を含む膜である
。この液晶４は、コレステリック液晶である。なお、５
はバインダーである。(e) Examples Examples of the present invention will now be described in detail with reference to the drawings. FIG. 1 is a sectional view of a contact lens according to an embodiment of the present invention, and FIG. 2 is an enlarged view of a portion thereof. The contact lens 1 of this embodiment consists of a contact lens body 2 and a liquid crystal film 3 formed on the surface of the contact lens body 2. The contact lens body 2 is a conventional contact lens. The liquid crystal @3 is a film containing a liquid crystal 4 that has been microencapsulated as shown in FIG. 2 by the microencapsulation technique described later. This liquid crystal 4 is a cholesteric liquid crystal. In addition, 5
is a binder.
一般に、コレステリック液晶は、温度によって液晶から
の散乱光の波長が変化する特性を有している。この実施
例では、液晶物質、溶媒およびその混合比を選択するこ
とによって第３図に示される特性の液晶を調製している
。すなわち、この実施例の液晶４は、体温付近の温度（
３５〜４０度程度）では、無色透明の液体状態を呈し、
それよりも低い温度では、散乱光が紫ないし赤に着色す
るという特性を有している。なお、第３図において、横
軸は温度、縦軸は散乱光の波長および色をそれぞれ示し
ている。In general, cholesteric liquid crystals have a property that the wavelength of scattered light from the liquid crystal changes depending on the temperature. In this example, a liquid crystal having the characteristics shown in FIG. 3 is prepared by selecting the liquid crystal substance, the solvent, and the mixing ratio thereof. That is, the liquid crystal 4 of this embodiment has a temperature near body temperature (
(about 35 to 40 degrees), it exhibits a colorless and transparent liquid state,
At lower temperatures, the scattered light is colored purple or red. In FIG. 3, the horizontal axis represents temperature, and the vertical axis represents the wavelength and color of scattered light.
この液晶の膜３は、従来から行なわれているマイクロカ
プセル化技術により生成されるのであるが、この実施例
では、高分子希薄溶液中での相分離法によって次のよう
にして生成される。This liquid crystal film 3 is produced by a conventional microencapsulation technique, but in this embodiment, it is produced by a phase separation method in a dilute polymer solution as follows.
例えば、ゼラチンとアラビアゴムを混合した高分子の希
薄溶液中に、マイクロカプセル化するコレステリック液
晶をクロロロホルム等のａ機溶媒に溶解させて分散さ仕
ておく。次に、水溶液のｐＩＩを下げて相分離を生じさ
せ、液晶物質の周囲に親水性ポリマーを付着させてコア
セルベートを形成してマイクロカプセル化する。これを
ポリビニルアルコールや澱粉糊などの適当なバインダー
５で膜とし、このマイクロカプセル化された液晶４を含
む膜３を、コンタクトレンズ本体２に印刷して第１図の
コンタクトレンズｌを得るものである。For example, cholesteric liquid crystal to be microencapsulated is dissolved and dispersed in a solvent such as chloroform in a dilute solution of a polymer containing gelatin and gum arabic. Next, the pII of the aqueous solution is lowered to cause phase separation, and a hydrophilic polymer is attached around the liquid crystal material to form a coacervate for microencapsulation. This is made into a film with a suitable binder 5 such as polyvinyl alcohol or starch glue, and the film 3 containing the microencapsulated liquid crystal 4 is printed on the contact lens body 2 to obtain the contact lens l shown in FIG. be.
このようにコンタクトレンズ本体２９表面に、マイクロ
カプセル化されたコレステリック液晶の膜３を形成し、
しかも、このコレステリック液晶は、体温付近の温度で
は、無色透明の液体状態で、それより低い温度では、着
色する性質を有しているので、コンタクトレンズ１を装
着している状態においては、体温付近の温度であるので
通常のコンタクトレンズと同様に無色透明であるが、コ
ンタクトレンズを落としたような場合には、コンタクト
レンズの温度が室温付近まで低下して着色することにな
り、従来例に比べて容易にコンタクトレンズ！を発見す
ることができる。なお、屈折率等の特性も液晶物質や溶
媒の種類あるいは混合比によって調整することが可能で
ある。In this way, a microencapsulated cholesteric liquid crystal film 3 is formed on the surface of the contact lens body 29,
Moreover, this cholesteric liquid crystal is in a colorless and transparent liquid state at a temperature near body temperature, and has the property of becoming colored at lower temperatures. , so they are colorless and transparent like regular contact lenses. However, if a contact lens is dropped, the temperature of the contact lens will drop to around room temperature and become colored, making it more transparent than conventional lenses. Contact lenses made easy! can be discovered. Note that characteristics such as refractive index can also be adjusted by adjusting the type or mixing ratio of the liquid crystal substance and solvent.
第４図は本発明の他の実施例の断面図である。FIG. 4 is a sectional view of another embodiment of the invention.
この実施例のコンタクトレンズｌ。は、表面ではなく、
コンタクトレンズ本体２゜の内部に上述の実施例と同様
にマイクロカプセル化された液晶の層３ｏを形成してい
る。Contact lens l of this example. is not the surface,
A microencapsulated liquid crystal layer 3o is formed inside the contact lens body 2° in the same manner as in the above embodiment.
上述の実施例では、液晶のマイクロカプセル化技術とし
て高分子希薄溶液中での相分離法について説明したけれ
ども、それ以外の方法、例えば、界面重合法、界面沈澱
法などによって液晶のマイクロカプセル化を行なっても
よいのは勿論である。In the above example, the phase separation method in a dilute polymer solution was explained as a liquid crystal microencapsulation technique. Of course, you can do it.
また、上述の実施例では、コレステリック液晶を用いた
けれども、本発明は、これに限るものではなく、ネマテ
ィック液晶、スメクテイック液晶などの他の液晶を用い
てもよい。Further, although cholesteric liquid crystal was used in the above embodiment, the present invention is not limited to this, and other liquid crystals such as nematic liquid crystal and smectic liquid crystal may be used.
（へ）効果
以上のように本発明によれば、コンタクトレンズに、体
温付近の温度では、無色透明で、かつ、それ以外の温度
では、着色する液晶を設けているので、コンタクトレン
ズを落としたような場合には、コンタクトレンズの温度
が変化して着色することになり、コンタクトレンズを容
易に発見することができる。(F) Effect As described above, according to the present invention, the contact lens is provided with a liquid crystal that is colorless and transparent at temperatures around body temperature, and colored at other temperatures, so that it is easy to drop the contact lens. In such cases, the temperature of the contact lens changes and becomes colored, making it easier to find the contact lens.
第１図は本発明の一実施例のコンタクトレンズの断面図
、第２図はその一部の拡大断面図、第３図は本発明の液
晶の特性図、第４図は他の実施例の断面図である。
・
１．１．・・・コンタクトレンズ、２，２ｏ・・・コン
タクトレンズ本体、３・・・液晶の膜、４・・・液晶。FIG. 1 is a sectional view of a contact lens according to an embodiment of the present invention, FIG. 2 is an enlarged sectional view of a part thereof, FIG. 3 is a characteristic diagram of a liquid crystal of the present invention, and FIG. 4 is a diagram of another embodiment of the contact lens. FIG.
・1.1. ...Contact lens, 2,2o...Contact lens body, 3...Liquid crystal film, 4...Liquid crystal.
Claims (2)
外の温度では、着色する液晶を有することを特徴とする
コンタクトレンズ。(1) A contact lens characterized by having a liquid crystal that is colorless and transparent at temperatures around body temperature and colored at other temperatures.
の範囲第１項に記載のコンタクトレンズ。(2) The contact lens according to claim 1, wherein the liquid crystal is a cholesteric liquid crystal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61312556A JP2699334B2 (en) | 1986-12-25 | 1986-12-25 | contact lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61312556A JP2699334B2 (en) | 1986-12-25 | 1986-12-25 | contact lens |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63163321A true JPS63163321A (en) | 1988-07-06 |
| JP2699334B2 JP2699334B2 (en) | 1998-01-19 |
Family
ID=18030632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61312556A Expired - Fee Related JP2699334B2 (en) | 1986-12-25 | 1986-12-25 | contact lens |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2699334B2 (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011010267A1 (en) * | 2009-07-18 | 2011-01-27 | Jonathan Pasternak | Methods materials and systems for producing a contact lens and contact lenses produced using said methods materials and systems |
| WO2013049000A1 (en) | 2011-09-29 | 2013-04-04 | Burton Ehren | Color changing contact lenses |
| EP2693258A1 (en) * | 2012-07-31 | 2014-02-05 | Johnson & Johnson Vision Care, Inc. | Inversion marking for contact lenses |
| EP2703877A1 (en) * | 2012-08-27 | 2014-03-05 | Johnson & Johnson Vision Care, Inc. | Usage compliance indicator for contact lenses |
| CN103869494A (en) * | 2014-04-01 | 2014-06-18 | 万新光学集团有限公司 | Art glasses capable of displaying temperature change by liquid crystal |
| WO2014129200A1 (en) * | 2013-02-25 | 2014-08-28 | パナソニック株式会社 | Composite optical element |
| EP2848965A3 (en) * | 2013-07-25 | 2015-05-20 | Johnson & Johnson Vision Care, Inc. | Contact lenses with embedded labels |
| JP6138297B1 (en) * | 2016-01-26 | 2017-05-31 | レノボ・シンガポール・プライベート・リミテッド | Iris pattern protection device, method for preventing voyeurism, and method for authentication of iris |
| US9690115B2 (en) | 2010-04-13 | 2017-06-27 | Johnson & Johnson Vision Care, Inc. | Contact lenses displaying reduced indoor glare |
| US10816822B2 (en) | 2010-04-13 | 2020-10-27 | Johnson & Johnson Vision Care, Inc. | Pupil-only photochromic contact lenses displaying desirable optics and comfort |
| US10894374B2 (en) | 2010-04-13 | 2021-01-19 | Johnson & Johnson Vision Care, Inc. | Process for manufacture of a thermochromic contact lens material |
| CN114721166A (en) * | 2022-04-26 | 2022-07-08 | 东南大学 | Contact lens containing thermochromic cholesteric liquid crystal material and preparation method thereof |
| US11724471B2 (en) | 2019-03-28 | 2023-08-15 | Johnson & Johnson Vision Care, Inc. | Methods for the manufacture of photoabsorbing contact lenses and photoabsorbing contact lenses produced thereby |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4911349A (en) * | 1972-05-23 | 1974-01-31 | ||
| JPS6338914A (en) * | 1986-08-04 | 1988-02-19 | Sumio Yokoyama | Contact lens |
-
1986
- 1986-12-25 JP JP61312556A patent/JP2699334B2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4911349A (en) * | 1972-05-23 | 1974-01-31 | ||
| JPS6338914A (en) * | 1986-08-04 | 1988-02-19 | Sumio Yokoyama | Contact lens |
Cited By (40)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011010267A1 (en) * | 2009-07-18 | 2011-01-27 | Jonathan Pasternak | Methods materials and systems for producing a contact lens and contact lenses produced using said methods materials and systems |
| EP2457123A1 (en) * | 2009-07-18 | 2012-05-30 | Leuko Ophthalmic Technologies Limited | Methods materials and systems for producing a contact lens and contact lenses produced using said methods materials and systems |
| CN103869495B (en) * | 2009-07-18 | 2016-09-14 | 莱坞科奥赛尔米克科技有限公司 | The method making contact lens and the contact lens using described method to make |
| CN102763023A (en) * | 2009-07-18 | 2012-10-31 | 莱坞科奥赛尔米克科技有限公司 | Methods materials and systems for producing a contact lens and contact lenses produced using said methods materials and systems |
| AU2010274606B2 (en) * | 2009-07-18 | 2014-10-16 | Leuko Ophthalmic Technologies Limited | Methods materials and systems for producing a contact lens and contact lenses produced using said methods materials and systems |
| EP2457123A4 (en) * | 2009-07-18 | 2013-12-18 | Leuko Ophthalmic Technologies Ltd | Methods materials and systems for producing a contact lens and contact lenses produced using said methods materials and systems |
| US20120113384A1 (en) * | 2009-07-18 | 2012-05-10 | Leuko Ophthalmic Technologies Limited | Methods materials and systems for producing a contact lens and contact lenses produced using said methods materials and systems |
| US8770746B2 (en) * | 2009-07-18 | 2014-07-08 | Jonathan Baruch Pasternak | Methods materials and systems for producing a contact lens and contact lenses produced using said methods materials and systems |
| CN103869495A (en) * | 2009-07-18 | 2014-06-18 | 莱坞科奥赛尔米克科技有限公司 | Methods materials and systems for producing a contact lens and contact lenses produced using said methods materials and systems |
| US10894374B2 (en) | 2010-04-13 | 2021-01-19 | Johnson & Johnson Vision Care, Inc. | Process for manufacture of a thermochromic contact lens material |
| US9690115B2 (en) | 2010-04-13 | 2017-06-27 | Johnson & Johnson Vision Care, Inc. | Contact lenses displaying reduced indoor glare |
| US11789291B2 (en) | 2010-04-13 | 2023-10-17 | Johnson & Johnson Vision Care, Inc. | Pupil-only photochromic contact lenses displaying desirable optics and comfort |
| US11391965B2 (en) | 2010-04-13 | 2022-07-19 | Johnson & Johnson Vision Care, Inc. | Pupil-only photochromic contact lenses displaying desirable optics and comfort |
| US10816822B2 (en) | 2010-04-13 | 2020-10-27 | Johnson & Johnson Vision Care, Inc. | Pupil-only photochromic contact lenses displaying desirable optics and comfort |
| US11724472B2 (en) | 2010-04-13 | 2023-08-15 | Johnson & Johnson Vision Care, Inc. | Process for manufacture of a thermochromic contact lens material |
| CN103842890A (en) * | 2011-09-29 | 2014-06-04 | E·伯顿 | Color changing contact lenses |
| WO2013049000A1 (en) | 2011-09-29 | 2013-04-04 | Burton Ehren | Color changing contact lenses |
| US20150085213A1 (en) * | 2011-09-29 | 2015-03-26 | Ehren Burton | Color changing contact lenses |
| JP2014032405A (en) * | 2012-07-31 | 2014-02-20 | Johnson & Johnson Vision Care Inc | Inversion marking for contact lenses |
| KR20140016850A (en) * | 2012-07-31 | 2014-02-10 | 존슨 앤드 존슨 비젼 케어, 인코포레이티드 | Inversion marking for contact lenses |
| EP2693258A1 (en) * | 2012-07-31 | 2014-02-05 | Johnson & Johnson Vision Care, Inc. | Inversion marking for contact lenses |
| US8820924B2 (en) | 2012-07-31 | 2014-09-02 | Johnson & Johnson Vision Care, Inc. | Inversion marking for contact lenses |
| CN103631030A (en) * | 2012-08-27 | 2014-03-12 | 庄臣及庄臣视力保护公司 | Usage compliance indicator for contact lenses |
| EP2703877A1 (en) * | 2012-08-27 | 2014-03-05 | Johnson & Johnson Vision Care, Inc. | Usage compliance indicator for contact lenses |
| JP2014044426A (en) * | 2012-08-27 | 2014-03-13 | Johnson & Johnson Vision Care Inc | Usage compliance indicator for contact lenses |
| US8911080B2 (en) | 2012-08-27 | 2014-12-16 | Johnson & Johnson Vision Care, Inc. | Usage compliance indicator for contact lenses |
| AU2013216695B2 (en) * | 2012-08-27 | 2016-09-22 | Johnson & Johnson Vision Care, Inc. | Usage compliance indicator for contact lenses |
| EP3528038A1 (en) * | 2012-08-27 | 2019-08-21 | Johnson & Johnson Vision Care Inc. | Usage compliance indicator for contact lenses |
| TWI622830B (en) * | 2012-08-27 | 2018-05-01 | 壯生和壯生視覺關懷公司 | Usage compliance indicator for contact lenses |
| WO2014129200A1 (en) * | 2013-02-25 | 2014-08-28 | パナソニック株式会社 | Composite optical element |
| AU2014204546B2 (en) * | 2013-07-25 | 2018-02-22 | Johnson & Johnson Vision Care, Inc. | Contact lenses with embedded labels |
| EP2848965A3 (en) * | 2013-07-25 | 2015-05-20 | Johnson & Johnson Vision Care, Inc. | Contact lenses with embedded labels |
| US9304328B2 (en) | 2013-07-25 | 2016-04-05 | Johnson & Johnson Vision Care, Inc. | Contact lenses with embedded labels |
| US9195072B2 (en) | 2013-07-25 | 2015-11-24 | Johnson & Johnson Vision Care, Inc. | Contact lenses with embedded labels |
| RU2583342C2 (en) * | 2013-07-25 | 2016-05-10 | Джонсон Энд Джонсон Вижн Кэа, Инк. | Contact lenses with embedded labels |
| CN103869494A (en) * | 2014-04-01 | 2014-06-18 | 万新光学集团有限公司 | Art glasses capable of displaying temperature change by liquid crystal |
| JP6138297B1 (en) * | 2016-01-26 | 2017-05-31 | レノボ・シンガポール・プライベート・リミテッド | Iris pattern protection device, method for preventing voyeurism, and method for authentication of iris |
| JP2017131302A (en) * | 2016-01-26 | 2017-08-03 | レノボ・シンガポール・プライベート・リミテッド | Iris pattern protection apparatus, unauthorized photographing prevention method, and iris authentication method |
| US11724471B2 (en) | 2019-03-28 | 2023-08-15 | Johnson & Johnson Vision Care, Inc. | Methods for the manufacture of photoabsorbing contact lenses and photoabsorbing contact lenses produced thereby |
| CN114721166A (en) * | 2022-04-26 | 2022-07-08 | 东南大学 | Contact lens containing thermochromic cholesteric liquid crystal material and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2699334B2 (en) | 1998-01-19 |
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