JPH01140118A - Focal length variable lens - Google Patents
Focal length variable lensInfo
- Publication number
- JPH01140118A JPH01140118A JP29925687A JP29925687A JPH01140118A JP H01140118 A JPH01140118 A JP H01140118A JP 29925687 A JP29925687 A JP 29925687A JP 29925687 A JP29925687 A JP 29925687A JP H01140118 A JPH01140118 A JP H01140118A
- Authority
- JP
- Japan
- Prior art keywords
- lens
- polymer
- focal length
- transparent
- curvature
- 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.)
- Pending
Links
- 239000002861 polymer material Substances 0.000 claims abstract 2
- 239000000463 material Substances 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 5
- 229920000642 polymer Polymers 0.000 abstract description 13
- 239000007788 liquid Substances 0.000 abstract description 9
- 239000000499 gel Substances 0.000 abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 5
- 239000011521 glass Substances 0.000 abstract description 4
- 230000003287 optical effect Effects 0.000 abstract description 4
- 239000000758 substrate Substances 0.000 abstract description 4
- 108010010803 Gelatin Proteins 0.000 abstract description 3
- 239000008273 gelatin Substances 0.000 abstract description 3
- 229920000159 gelatin Polymers 0.000 abstract description 3
- 235000019322 gelatine Nutrition 0.000 abstract description 3
- 235000011852 gelatine desserts Nutrition 0.000 abstract description 3
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 abstract description 2
- 239000002033 PVDF binder Substances 0.000 abstract description 2
- 210000005252 bulbus oculi Anatomy 0.000 abstract description 2
- 229920003229 poly(methyl methacrylate) Polymers 0.000 abstract description 2
- 239000004926 polymethyl methacrylate Substances 0.000 abstract description 2
- 229920000131 polyvinylidene Polymers 0.000 abstract description 2
- 229920002981 polyvinylidene fluoride Polymers 0.000 abstract description 2
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 abstract 3
- 239000012994 photoredox catalyst Substances 0.000 abstract 1
- 239000004417 polycarbonate Substances 0.000 abstract 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 210000001508 eye Anatomy 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 208000001491 myopia Diseases 0.000 description 1
- 229920001451 polypropylene glycol Polymers 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明はカメラ・眼傭等光学製品に使用される各種レン
ズに関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to various lenses used in optical products such as cameras and eye lenses.
従来、光学製品に使用されるレンズは、ガラスあるいは
高分子材料からなる固定焦点しンズである。Traditionally, lenses used in optical products are fixed focus lenses made of glass or polymeric materials.
固定焦点レンズを用いて、焦点を可変にする場合には例
えばカメラの場合は、被写体の距離により２組み合せで
ある複数のレンズの相対距離を変化させる。いわゆるピ
ント合せを行なう事により焦点距離を変化させなければ
ならない。When a fixed focal length lens is used to make the focus variable, for example, in the case of a camera, the relative distance of a plurality of lenses, which are two combinations, is changed depending on the distance of the subject. The focal length must be changed by performing so-called focusing.
また眼鏡の場合には通常１枚レンズであるため、１つの
レンズ内に近用部・遠用部・中間用部と複数の焦点距離
を持つレンズを配してあり。In addition, since glasses are usually a single lens, lenses with multiple focal lengths, such as a near vision section, a far vision section, and an intermediate vision section, are arranged within one lens.
使用者は目的とする距離に対応したレンズを選ぶ必要が
生じ、また、そのレンズの視野も狭くなる。The user needs to select a lens that corresponds to the desired distance, and the field of view of that lens also becomes narrower.
本発明はこのような問題点を解決するために。 The present invention aims to solve these problems.
外殼全体あるいは１部にピエゾ効果を持ち、可視光線に
透明な高分子材料からなるレンズ外殼と該レンズ外殼に
直流電圧を印加し同印加電圧を変化させる手段とからな
り核外殼を変形させてレンズの焦点距離を変化させるこ
とを特徴とする焦点距離可変半レンズを提供するもので
ある。The lens consists of an outer lens shell made of a polymeric material that has a piezo effect on the entire outer shell or a part thereof and is transparent to visible light, and a means for applying a DC voltage to the lens outer shell and changing the applied voltage. The present invention provides a variable focal length half lens characterized by changing the focal length of the lens.
透明電極に電圧を印加させると、ピエゾ効果によりレン
ズ外殼が圧電係数に相当するだけの変形が生じ、レンズ
外殼の曲率半径が変化する。When a voltage is applied to the transparent electrode, the piezoelectric effect causes the lens shell to deform by an amount corresponding to the piezoelectric coefficient, and the radius of curvature of the lens shell changes.
同時に内部セル形状も変わり充填しである液体及びゲル
状物質も流動し、その形状となり、レンズとしての焦点
距離が変わる。At the same time, the shape of the internal cell changes, and the filling liquid and gel material flow, assume that shape, and change the focal length of the lens.
第１図は本発明の実施例で（Ａ３図は焦点距離可変レン
ズの正面図、（Ｂ）図はそのＡ−Ａ断面図で電圧印加手
段を付加した図である。透明基板１はＰＭＭＡ、 Ｐ
Ｃ等の高分子材料あるいはガラスよりなり９本体１０の
側面に固定されている。透明ピエゾポリマー８はポリフ
ッ化ビニリデン、あるいはポリシアン化ビニリデンより
なり、同じく本体１０の他の側面へ取付けられており、
その厚さ方向の両面に透明電極（例えばネサコーテング
）４，５をコーティングする。また内部セ／ｌ／２内に
は水、ポリプロピレングライコール等 −の液体あるい
はゼラチンゲル、充分吸水させた吸水性ポリマーなど比
較的屈折率の温度依存性の少ない流体を充填しレンズ体
を構成している。FIG. 1 shows an embodiment of the present invention (Figure A3 is a front view of a variable focal length lens, and Figure (B) is a sectional view taken along line A-A of the same with voltage applying means added. The transparent substrate 1 is made of PMMA, P
It is made of a polymeric material such as C or glass and is fixed to the side surface of the main body 10. The transparent piezo polymer 8 is made of polyvinylidene fluoride or polyvinylidene cyanide, and is also attached to the other side of the main body 10.
Transparent electrodes (for example, Nesa coating) 4 and 5 are coated on both sides in the thickness direction. In addition, the inner cell/l/2 is filled with a liquid such as water, polypropylene glycol, or gelatin gel, or a fluid whose refractive index has relatively little temperature dependence, such as gelatin gel or a water-absorbing polymer that has sufficiently absorbed water, to form the lens body. ing.
１０ｍは調整用空間部で、ボー） １０ｂを介して内部
の液体が出入して透明ピエゾポリマー８の変形に伴う内
部セ／Ｌ／ ２内の増減による液体を調整するものであ
る。10m is an adjustment space, in which internal liquid enters and exits through bow 10b to adjust the liquid due to increase and decrease in the internal cell/L/2 due to deformation of the transparent piezo polymer 8.
透明電極４，５には直流定電圧電源１１より可変抵抗器
１１を介して直流電圧を印加すると透明ピエゾポリマー
８の厚さ方向の圧電係数に基づき変形が生じ、透明ピエ
ゾポリマー３の曲率が変化する。また、この変形に従い
、内部セ／Ｌ／ ２の形状も変り、充填しである液体あ
るいはゲル状物質も前述のように流動する。かかる状態
では、電圧印加しない場合と比較し１曲率の異なるレン
ズとして機能する事になる。When a DC voltage is applied to the transparent electrodes 4 and 5 via the variable resistor 11 from the DC constant voltage power supply 11, deformation occurs based on the piezoelectric coefficient in the thickness direction of the transparent piezo polymer 8, and the curvature of the transparent piezo polymer 3 changes. do. Further, in accordance with this deformation, the shape of the internal cell/L/2 also changes, and the filling liquid or gel material also flows as described above. In such a state, it functions as a lens with one curvature different from that in the case where no voltage is applied.
この場合、印加電圧の大小により任意の曲率のレンズが
得られるし、また電Ｗｉ４．５間の電圧を十−逆にすれ
ば、第２図の断面図に示すように凸レンジを凹レンズと
して作用させる事も可能となる。この場合も透明ピエゾ
ポリマーが凹状に変形して内部セ／Ｌ／ ２内は減少し
、その分 ４液体はポー） １０ｂを介して調整用空間
１０ａに入り込み調整されることになる。In this case, a lens with an arbitrary curvature can be obtained by changing the magnitude of the applied voltage, and if the voltage between Wi4.5 and Wi4. It is also possible to do so. In this case as well, the transparent piezo polymer is deformed into a concave shape and the inside of the internal cell/L/2 is reduced, and the corresponding amount of liquid enters the adjustment space 10a via the port 10b and is adjusted.
本実施例では外殼の一部に透明基板１を用いたが、この
部分にも透明ピエゾポリマー・電極を用い、外殼全体を
電圧により変形させしめて。In this embodiment, a transparent substrate 1 was used in a part of the outer shell, and a transparent piezo polymer electrode was also used in this part, and the entire outer shell was deformed by applying voltage.
曲率の変化をなるべく大きくする様にしても良い。The change in curvature may be made as large as possible.
また透明ピエゾポリマーを２枚重ね、いわゆるバイモル
フとし、効率の良い変形を生じさせても良い。Alternatively, two sheets of transparent piezo polymer may be stacked to form a so-called bimorph to produce efficient deformation.
前記の構造・作用で述べた様に本発明の焦点距離可変レ
ンズは直流印加電圧を変えることによりレンズを変化さ
せて曲率を変えることができるのでカメラ・眼鏡・人工
眼球等に利用可能であり、前述のように焦点距離を変え
たり、複数のレンズを組合せたりする光学製品の欠点を
解消できるものである。As described in the structure and function above, the variable focal length lens of the present invention can change the curvature by changing the lens by changing the applied DC voltage, so it can be used in cameras, eyeglasses, artificial eyeballs, etc. As mentioned above, it is possible to overcome the drawbacks of optical products that change the focal length or combine multiple lenses.
第１図は本発明の焦点距離可変レンズに係る実施例で回
国は正面図、 （Ｂ）図は回国のＡ−Ａ断面図、第２図
は本発明の実施例の断面図で凹レンズ状に変形した場合
を示した図である。
１・・・透明基板、２・・・内部セル、８・・・透明ピ
エゾポリマー、４，５・・・透明電極、 １０・・・本
体。Figure 1 is an embodiment of the variable focal length lens of the present invention, in which the lens is a front view, Figure (B) is a sectional view taken along line A-A of the lens, and Figure 2 is a sectional view of an embodiment of the invention, which has a concave lens shape. It is a figure showing the case where it deformed. DESCRIPTION OF SYMBOLS 1... Transparent substrate, 2... Internal cell, 8... Transparent piezo polymer, 4, 5... Transparent electrode, 10... Main body.
Claims (1)
透明な高分子材料からなるレンズ外殼と該レンズ外殼に
直流電圧を印加し同印加電圧を変化させる手段とからな
り該外殼を変形させてレンズの焦点距離を変化させるこ
とを特徴とする焦点距離可変レンズ。The entire outer shell or a part thereof has a piezo effect and is made of a polymeric material that is transparent to visible light.The lens is composed of a lens outer shell made of a polymer material that is transparent to visible light, and a means for applying a DC voltage to the lens outer shell and changing the applied voltage. A variable focal length lens characterized by changing the focal length of the lens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29925687A JPH01140118A (en) | 1987-11-27 | 1987-11-27 | Focal length variable lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29925687A JPH01140118A (en) | 1987-11-27 | 1987-11-27 | Focal length variable lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01140118A true JPH01140118A (en) | 1989-06-01 |
Family
ID=17870179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP29925687A Pending JPH01140118A (en) | 1987-11-27 | 1987-11-27 | Focal length variable lens |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01140118A (en) |
Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06167646A (en) * | 1991-02-26 | 1994-06-14 | Tesco:Kk | Adjustment system for lens focal length and bar code read system using the same |
| EP0949109A3 (en) * | 1998-04-09 | 2000-07-26 | Volkswagen Aktiengesellschaft | Indication device in motor vehicles for displaying digital or analogue operating data |
| US6188526B1 (en) | 1998-06-26 | 2001-02-13 | Denso Corporation | Variable focus lens device having temperature fluctuation compensating feature for lens device liquid |
| US6344930B1 (en) | 1999-03-03 | 2002-02-05 | Denso Corporation | Total-focus imaging apparatus using a variable-focus lens |
| EP1381229A1 (en) * | 2001-03-30 | 2004-01-14 | National Institute of Advanced Industrial Science and Technology | Real-time omnifocus microscope camera |
| DE102004012094A1 (en) * | 2004-03-05 | 2005-09-29 | Siemens Ag | Adaptive optical unit for use in e.g. gas laser, has polymer actuator with polymer layer, electrode layers bordering both sides of actuator, and suspension for installation of unit, where suspension is formed flexibly |
| KR20060106420A (en) * | 2005-04-08 | 2006-10-12 | 엘지전자 주식회사 | Micro lens driven by electrostatic force for variable focus, fabrication and operation method thereof |
| EP1739461A1 (en) * | 2005-06-29 | 2007-01-03 | Wavelight Laser Technologie AG | Fluid lens system and its use in an artificial eye, an accomodation measuring system and a telescope |
| JP2007114608A (en) * | 2005-10-21 | 2007-05-10 | Seiko Precision Inc | Variable focus lens, and focusing device and imaging apparatus using variable focus lens |
| GB2433607A (en) * | 2005-08-19 | 2007-06-27 | Samsung Electro Mech | A liquid for a liquid lens |
| WO2008044937A1 (en) | 2006-10-11 | 2008-04-17 | Ignis Display As | Design of compact adjustable lens |
| WO2008044938A1 (en) * | 2006-10-11 | 2008-04-17 | Ignis Display As | Method for manufacturing adjustable lens |
| WO2008076399A2 (en) * | 2006-12-15 | 2008-06-26 | Hand Held Products, Inc. | Apparatus and method comprising deformable lens element |
| WO2008100154A1 (en) | 2007-02-12 | 2008-08-21 | Polight As | Flexible lens assembly with variable focal length |
| EP2000828A3 (en) * | 1999-12-23 | 2009-02-25 | Longevyty AS | Optical systems |
| EP2199836A1 (en) * | 2008-12-18 | 2010-06-23 | BAE Systems PLC | Fluidic lens |
| US7813047B2 (en) | 2006-12-15 | 2010-10-12 | Hand Held Products, Inc. | Apparatus and method comprising deformable lens element |
| US8027096B2 (en) | 2006-12-15 | 2011-09-27 | Hand Held Products, Inc. | Focus module and components with actuator polymer control |
| US8027095B2 (en) | 2005-10-11 | 2011-09-27 | Hand Held Products, Inc. | Control systems for adaptive lens |
| US8199410B2 (en) | 2006-09-21 | 2012-06-12 | Polight As | Polymer lens |
| US8310772B2 (en) | 2008-07-11 | 2012-11-13 | Polight As | Method and arrangement for reducing thermal effects in compact adjustable optical lenses |
| US8717681B2 (en) | 2008-12-18 | 2014-05-06 | Bae Systems, Plc | Fluidic lens |
-
1987
- 1987-11-27 JP JP29925687A patent/JPH01140118A/en active Pending
Cited By (34)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06167646A (en) * | 1991-02-26 | 1994-06-14 | Tesco:Kk | Adjustment system for lens focal length and bar code read system using the same |
| EP0949109A3 (en) * | 1998-04-09 | 2000-07-26 | Volkswagen Aktiengesellschaft | Indication device in motor vehicles for displaying digital or analogue operating data |
| US6188526B1 (en) | 1998-06-26 | 2001-02-13 | Denso Corporation | Variable focus lens device having temperature fluctuation compensating feature for lens device liquid |
| US6344930B1 (en) | 1999-03-03 | 2002-02-05 | Denso Corporation | Total-focus imaging apparatus using a variable-focus lens |
| EP2000828A3 (en) * | 1999-12-23 | 2009-02-25 | Longevyty AS | Optical systems |
| EP1381229A1 (en) * | 2001-03-30 | 2004-01-14 | National Institute of Advanced Industrial Science and Technology | Real-time omnifocus microscope camera |
| EP1381229A4 (en) * | 2001-03-30 | 2006-05-03 | Nat Inst Of Advanced Ind Scien | Real-time omnifocus microscope camera |
| DE102004012094A1 (en) * | 2004-03-05 | 2005-09-29 | Siemens Ag | Adaptive optical unit for use in e.g. gas laser, has polymer actuator with polymer layer, electrode layers bordering both sides of actuator, and suspension for installation of unit, where suspension is formed flexibly |
| KR20060106420A (en) * | 2005-04-08 | 2006-10-12 | 엘지전자 주식회사 | Micro lens driven by electrostatic force for variable focus, fabrication and operation method thereof |
| EP1739461A1 (en) * | 2005-06-29 | 2007-01-03 | Wavelight Laser Technologie AG | Fluid lens system and its use in an artificial eye, an accomodation measuring system and a telescope |
| WO2007000280A1 (en) * | 2005-06-29 | 2007-01-04 | Wavelight Ag. | Artificial eye and measuring instrument for measuring the accommodation of an eye |
| US7855839B2 (en) | 2005-06-29 | 2010-12-21 | Wavelight Ag | Artificial eye and measuring instrument for measuring the accommodation of an eye |
| GB2433607A (en) * | 2005-08-19 | 2007-06-27 | Samsung Electro Mech | A liquid for a liquid lens |
| US7656588B2 (en) | 2005-08-19 | 2010-02-02 | Samsung Electro-Mechanics Co., Ltd. | Liquid for liquid lens with high reliability |
| GB2433607B (en) * | 2005-08-19 | 2009-02-18 | Samsung Electro Mech | Liquid for liquid lens with high reliability |
| US8027095B2 (en) | 2005-10-11 | 2011-09-27 | Hand Held Products, Inc. | Control systems for adaptive lens |
| JP4697788B2 (en) * | 2005-10-21 | 2011-06-08 | セイコープレシジョン株式会社 | Variable focus lens, and focus adjustment device and imaging device using the same |
| JP2007114608A (en) * | 2005-10-21 | 2007-05-10 | Seiko Precision Inc | Variable focus lens, and focusing device and imaging apparatus using variable focus lens |
| US8199410B2 (en) | 2006-09-21 | 2012-06-12 | Polight As | Polymer lens |
| WO2008044938A1 (en) * | 2006-10-11 | 2008-04-17 | Ignis Display As | Method for manufacturing adjustable lens |
| US8883019B2 (en) | 2006-10-11 | 2014-11-11 | Polight As | Method for manufacturing adjustable lens |
| WO2008044937A1 (en) | 2006-10-11 | 2008-04-17 | Ignis Display As | Design of compact adjustable lens |
| US8045280B2 (en) | 2006-10-11 | 2011-10-25 | Polight As | Compact adjustable lens |
| JP2010513952A (en) * | 2006-12-15 | 2010-04-30 | ハンド ヘルド プロダクツ インコーポレーティッド | Device and method comprising a deformable lens element |
| US9699370B2 (en) | 2006-12-15 | 2017-07-04 | Hand Held Products, Inc. | Apparatus and method comprising deformable lens element |
| US7813047B2 (en) | 2006-12-15 | 2010-10-12 | Hand Held Products, Inc. | Apparatus and method comprising deformable lens element |
| US8027096B2 (en) | 2006-12-15 | 2011-09-27 | Hand Held Products, Inc. | Focus module and components with actuator polymer control |
| WO2008076399A2 (en) * | 2006-12-15 | 2008-06-26 | Hand Held Products, Inc. | Apparatus and method comprising deformable lens element |
| WO2008076399A3 (en) * | 2006-12-15 | 2008-09-25 | Hand Held Prod Inc | Apparatus and method comprising deformable lens element |
| WO2008100154A1 (en) | 2007-02-12 | 2008-08-21 | Polight As | Flexible lens assembly with variable focal length |
| US8390939B2 (en) | 2007-02-12 | 2013-03-05 | Polight As | Flexible lens assembly with variable focal length |
| US8310772B2 (en) | 2008-07-11 | 2012-11-13 | Polight As | Method and arrangement for reducing thermal effects in compact adjustable optical lenses |
| US8717681B2 (en) | 2008-12-18 | 2014-05-06 | Bae Systems, Plc | Fluidic lens |
| EP2199836A1 (en) * | 2008-12-18 | 2010-06-23 | BAE Systems PLC | Fluidic lens |
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