JPH10301013A - Lens driving mechanism - Google Patents
Lens driving mechanismInfo
- Publication number
- JPH10301013A JPH10301013A JP10841397A JP10841397A JPH10301013A JP H10301013 A JPH10301013 A JP H10301013A JP 10841397 A JP10841397 A JP 10841397A JP 10841397 A JP10841397 A JP 10841397A JP H10301013 A JPH10301013 A JP H10301013A
- Authority
- JP
- Japan
- Prior art keywords
- lens
- piezoelectric element
- driving mechanism
- adjustment
- focus
- 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.)
- Withdrawn
Links
Landscapes
- Lens Barrels (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明はレンズ駆動機構に係
り、特にピント微調用レンズを駆動するためのレンズ駆
動機構に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lens driving mechanism, and more particularly to a lens driving mechanism for driving a focus fine adjustment lens.
【０００２】[0002]
【従来の技術】撮影光学系においては、一般に複数のレ
ンズが設けられ、それらレンズの一部または全部を光軸
方向に沿って移動させることによって、ピント調整を行
うよう構成されている。例えば撮影レンズ光学系には、
図６に示すように、第１レンズ群１、第２レンズ群２お
よび第３レンズ群３が設けられ、ピント調整をする際に
は、第１レンズ群１を矢印Ａ方向に、第２レンズ群２を
矢印Ｂ方向にそれぞれを往復移動させて粗調整を行った
後に、第３レンズ群３を矢印Ｃ方向に移動させて微調整
を行うようになっている。2. Description of the Related Art In a photographing optical system, a plurality of lenses are generally provided, and focus adjustment is performed by moving some or all of the lenses along the optical axis direction. For example, in a photographic lens optical system,
As shown in FIG. 6, a first lens group 1, a second lens group 2, and a third lens group 3 are provided. When performing focus adjustment, the first lens group 1 is moved in the direction of arrow A and the second lens group is moved. After performing coarse adjustment by reciprocating the group 2 in the direction of arrow B, fine adjustment is performed by moving the third lens group 3 in the direction of arrow C.
【０００３】ところで、第３レンズ群３を往復移動させ
るためのレンズ駆動機構としては、図６に示すように、
モータ４と、このモータ４の回転力を伝達するためのギ
ヤ列５と、第３群レンズ３を保持するとともにギヤ列５
からの回転力が伝達されるレンズホルダ６と、から構成
されたものが一般的である。レンズホルダ６は大径部６
Ａと小径部６Ｂとを有し、大径部６Ａの外周面にはギヤ
が小径部６Ｂの外周面にはスクリューがそれぞれ形成さ
れていて、大径部６Ａのギヤはギヤ列５に噛み合い、小
径部６Ｂのスクリューは光学系本体７に形成されたスク
リューに螺合している。そしてレンズホルダ６が回転す
れば、上記両スクリューの螺合により、レンズホルダ６
と第３群レンズ３が矢印Ｃ方向に往復移動することにな
る。As a lens drive mechanism for reciprocating the third lens group 3, as shown in FIG.
A motor 4, a gear train 5 for transmitting the rotational force of the motor 4, and a gear train 5 for holding the third lens group 3
And a lens holder 6 to which the rotational force is transmitted. The lens holder 6 is a large diameter portion 6
A has a small diameter portion 6B, a gear is formed on an outer peripheral surface of the large diameter portion 6A, and a screw is formed on an outer peripheral surface of the small diameter portion 6B. The gear of the large diameter portion 6A meshes with the gear train 5, The screw of the small diameter portion 6B is screwed with a screw formed in the optical system main body 7. Then, when the lens holder 6 rotates, the screwing of the two screws causes the lens holder 6 to rotate.
Then, the third lens unit 3 reciprocates in the direction of arrow C.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、上記従
来の技術では、第３レンズ群を往復移動させるレンズ駆
動機構がモータとギヤ列で構成されているので、レンズ
駆動機構を収容するためのスペースが大きくなる上、レ
ンズ駆動機構の部品点数も多くなり組立性が悪いという
欠点がある。However, in the above prior art, the lens driving mechanism for reciprocating the third lens group is composed of a motor and a gear train, so that a space for accommodating the lens driving mechanism is required. In addition, there is a disadvantage that the number of parts of the lens driving mechanism is increased and the assembling property is poor.
【０００５】また通常、ギヤにはバックラッシュがある
ために、モータの回転がレンズホルダに伝達されるまで
に多少の時間遅れが生じ、ピント調整の応答性があまり
良くないという欠点もある。[0005] In addition, since gears usually have backlash, there is also a disadvantage that a slight time delay occurs before the rotation of the motor is transmitted to the lens holder, resulting in poor focus adjustment response.
【０００６】本発明の目的は、収容スペースが小さく且
つ部品点数も少なく、しかもピント調整の応答性を向上
させることのできるレンズ駆動機構を提供することにあ
る。SUMMARY OF THE INVENTION An object of the present invention is to provide a lens driving mechanism which has a small housing space and a small number of parts, and can improve the response of focus adjustment.
【０００７】[0007]
【課題を解決するための手段】上記目的を達成するため
に、請求項１に記載の本発明は、撮影光学系を構成する
レンズの一部または全部を光軸方向に沿って移動させ
て、ピント調整を行うレンズ駆動機構において、ピント
微調用レンズの外周域に複数の弾性体を均等に配置し、
該弾性体で前記ピント微調用レンズを支持するととも
に、前記弾性体に圧電素子を固着して、前記圧電素子に
電圧を印加したときの圧電素子の変形力によって、前記
ピント微調用レンズを光軸方向に移動させることを特徴
としている。In order to achieve the above object, according to the present invention, a part or all of a lens constituting a photographing optical system is moved along an optical axis direction. In a lens drive mechanism that performs focus adjustment, a plurality of elastic bodies are arranged evenly in the outer peripheral area of the focus fine adjustment lens,
The elastic fine body supports the focus fine-adjustment lens, and a piezoelectric element is fixed to the elastic body, and the focus fine-adjustment lens is moved along the optical axis by a deformation force of the piezoelectric element when a voltage is applied to the piezoelectric element. It is characterized by moving in the direction.
【０００８】圧電素子に電圧を印加すれば、圧電素子は
所定の方向に変形して複数の弾性体を同方向へ屈曲さ
せ、これによって、ピント微調用レンズを移動させるこ
とができる。この場合、複数の弾性体はピント微調用レ
ンズの外周域に均等に配置されているので、ピント微調
用レンズを光軸方向に沿って平行移動させることができ
る。そして、圧電素子に印加する電圧の大きさを制御す
れば、ピント微調用レンズの移動量を精度良く制御する
ことが可能となる。When a voltage is applied to the piezoelectric element, the piezoelectric element is deformed in a predetermined direction to bend the plurality of elastic bodies in the same direction, whereby the focus fine adjustment lens can be moved. In this case, since the plurality of elastic bodies are evenly arranged on the outer peripheral area of the focus fine adjustment lens, the focus fine adjustment lens can be translated in the optical axis direction. Then, by controlling the magnitude of the voltage applied to the piezoelectric element, it is possible to accurately control the amount of movement of the focus fine-adjustment lens.
【０００９】請求項２に記載に発明は、請求項１におい
て、前記弾性体は円弧状の板状部材で形成されているこ
とを特徴としている。通常、ピント微調用レンズは円形
をしているので、弾性体を円弧状の板状部材で形成して
おけば、弾性体をピント微調用レンズの外周に沿って配
置することができ、レンズ駆動機構のコンパクト化を図
ることができる。According to a second aspect of the present invention, in the first aspect, the elastic body is formed of an arc-shaped plate member. Normally, since the focus fine adjustment lens is circular, if the elastic body is formed of an arc-shaped plate-like member, the elastic body can be arranged along the outer periphery of the focus fine adjustment lens, and the lens drive can be performed. The mechanism can be made more compact.
【００１０】請求項３に記載の発明は、請求項２におい
て、前記板状部材の両面に前記圧電素子が固着されてい
ることを特徴としている。また請求項４に記載の発明
は、請求項２において、前記板状部材の片面に前記圧電
素子が固着されていることを特徴としている。圧電素子
は板状部材の両面に固着することもできるし、または片
面だけに固着することもできる。両面に圧電素子を固着
した場合は、圧電素子で発生する力（変形力）が大きく
なるため、弾性体が大きく屈曲させることができる。ま
た、片面に圧電素子を固着した場合は、圧電素子で発生
する力は両面の場合に比べて小さくなるが、構成が簡単
となるとともに、片面の圧電素子だけに電圧を印加すれ
ばよいから、印加電圧の制御が簡単である。A third aspect of the present invention is characterized in that, in the second aspect, the piezoelectric element is fixed to both surfaces of the plate-shaped member. According to a fourth aspect of the present invention, in the second aspect, the piezoelectric element is fixed to one surface of the plate-shaped member. The piezoelectric element can be fixed to both surfaces of the plate-shaped member, or can be fixed to only one surface. When the piezoelectric elements are fixed to both surfaces, the force (deformation force) generated by the piezoelectric elements increases, so that the elastic body can be largely bent. Also, when the piezoelectric element is fixed to one side, the force generated by the piezoelectric element is smaller than that of both sides, but the configuration is simpler and the voltage only needs to be applied to the piezoelectric element on one side. Control of the applied voltage is simple.
【００１１】そして、請求項５に記載の発明は、請求項
１において、前記ピント微調用レンズの支持というの
は、前記ピント微調用レンズがレンズホルダに保持さ
れ、このレンズホルダを前記弾性体が支持していること
を特徴としている。According to a fifth aspect of the present invention, in the first aspect, supporting the focus fine-adjustment lens means that the focus fine-adjustment lens is held by a lens holder, and the elastic body is attached to the lens holder. It is characterized by support.
【００１２】[0012]
【発明の実施の形態】以下、本発明の実施の形態を図面
に従って説明する。図１および図２は本発明のレンズ駆
動機構を示しており、図１はその正面図、図２は図１の
Ｄ−Ｄ線に沿った断面図である。図に示すように、ピン
ト微調用レンズ１０を保持するレンズホルダ１１は、中
間部に段付き部を有する円筒状の固定筒１２の一端側に
配置されている。固定筒１２は、本発明のレンズ駆動機
構が搭載される、例えばカメラ本体などに固定されてい
る。Embodiments of the present invention will be described below with reference to the drawings. 1 and 2 show a lens driving mechanism of the present invention, FIG. 1 is a front view thereof, and FIG. 2 is a cross-sectional view taken along line DD of FIG. As shown in the figure, a lens holder 11 for holding a focus fine-adjustment lens 10 is arranged on one end side of a cylindrical fixed cylinder 12 having a stepped portion at an intermediate portion. The fixed barrel 12 is fixed to, for example, a camera body on which the lens driving mechanism of the present invention is mounted.
【００１３】レンズホルダ１１の外周面には３つのリブ
１１Ａが１２０度間隔に設けられ、そのリブ１１Ａの各
々にピン１１Ｂが形成されている。また、レンズホルダ
１１を固定筒１２に取り付けるために、固定筒１２の一
端側には円形板状部材１３が固定されている。この円形
板状部材１３の正面図を図３に示す。Three ribs 11A are provided on the outer peripheral surface of the lens holder 11 at intervals of 120 degrees, and pins 11B are formed on each of the ribs 11A. In order to mount the lens holder 11 to the fixed barrel 12, a circular plate-shaped member 13 is fixed to one end of the fixed barrel 12. FIG. 3 shows a front view of the circular plate-shaped member 13.
【００１４】円形板状部材１３は、図３のように中央部
にほぼ円形の孔１３Ａを有し、この円形孔１３Ａにレン
ズホルダ１１が配置される。また、円形板状部材１３の
内周側には、円弧状をした３つの支持腕１３Ｂが１２０
度間隔で配置され、これらの支持腕１３Ｂの基部は円形
板状部材１３の本体と一体となっている。すなわち、支
持腕１３Ｂは、先端部が自由端となり、基部が円形板状
部材１３の本体で支持された片持ち梁を形成している。
支持腕１３Ｂは、円形板状部材１３と同様に板状をな
し、先端部は例えば図３の紙面垂直方向の力を受ければ
同方向に移動する、いわゆる弾性体を構成している。ま
た支持腕１３Ｂの先端部にはピン孔１３Ｃが形成され、
このピン孔１３Ｃに前述のピン１１Ｂを嵌合することに
より、レンズホルダ１１およびピント微調用レンズ１０
を円形板状部材１３の円形孔１３Ａ内の中央部に位置決
めすることができる。The circular plate-shaped member 13 has a substantially circular hole 13A at the center as shown in FIG. 3, and the lens holder 11 is disposed in the circular hole 13A. On the inner peripheral side of the circular plate-shaped member 13, three arc-shaped support arms 13B are provided.
The bases of the support arms 13 </ b> B are integrated with the main body of the circular plate-shaped member 13. That is, the support arm 13 </ b> B has a free end at the distal end and a cantilever whose base is supported by the main body of the circular plate-shaped member 13.
The support arm 13B has a plate-like shape like the circular plate-shaped member 13, and a tip portion of the support arm 13B is a so-called elastic body that moves in the same direction when receiving a force in a direction perpendicular to the plane of FIG. Also, a pin hole 13C is formed at the tip of the support arm 13B,
By fitting the pin 11B into the pin hole 13C, the lens holder 11 and the focus fine
Can be positioned at the center of the circular plate-shaped member 13 in the circular hole 13A.
【００１５】また、支持腕１３Ｂの表面には円弧形状に
曲げられた圧電素子１４が固着されている。圧電素子１
４を支持腕１３Ｂの両面に固着しても良いし、支持腕１
３Ｂの片面に固着しても良い。図４および図５は、図３
のＥの範囲を矢印Ｆ方向から見た図であり、図４は圧電
素子１４を支持腕１３Ｂの両面に固着した場合（通常、
バイモルフと呼ばれている）を、図５は圧電素子１４を
支持腕１３Ｂの片面に固着した場合（通常、ユニモルフ
と呼ばれている）をそれぞれ示している。A piezoelectric element 14 bent in an arc shape is fixed to the surface of the support arm 13B. Piezoelectric element 1
4 may be fixed to both sides of the support arm 13B,
It may be fixed to one side of 3B. 4 and 5 show FIG.
FIG. 4 is a view in which the range of E is viewed from the direction of arrow F, and FIG.
FIG. 5 shows a case where the piezoelectric element 14 is fixed to one surface of the support arm 13B (generally called a unimorph).
【００１６】さらに、円筒状部材１２の他端側には回路
基板１５が設けられ、この回路基板１５上にＣＣＤ１６
が取り付けられている。このＣＣＤ１６はピント微調用
レンズ１０の光軸上に設けられ、ピント微調用レンズ１
０を透過してきた光束を受光して撮像する。Further, a circuit board 15 is provided on the other end of the cylindrical member 12, and a CCD 16 is mounted on the circuit board 15.
Is attached. The CCD 16 is provided on the optical axis of the focus fine-adjustment lens 10, and the focus fine-adjustment lens 1
The light beam transmitted through 0 is received and imaged.
【００１７】次に、上記構成のレンズ駆動機構の作用に
ついて説明する。図４（ａ）のようなバイモルフの場合
は、支持腕１３Ｂの上面側と下面側とでは異なった電圧
を印加する。例えば、支持腕１３Ｂの上面側の圧電素子
１４が伸びるように、支持腕１３Ｂの下面側の圧電素子
１４が縮むように、両圧電素子１４へ電圧を印加する。
それによって、支持腕１３Ｂは、図４（ｂ）のように下
側に屈曲する。また、支持腕１３Ｂの上面側の圧電素子
１４が縮むように、支持腕１３Ｂの下面側の圧電素子１
４が伸びるように、両圧電素子１４へ電圧を印加する。
それによって、支持腕１３Ｂは、図４（ｃ）のように上
側に屈曲する。そして、支持腕１３Ｂの屈曲量は、両圧
電素子１４へ印加する電圧を制御することによって行う
ことができる。Next, the operation of the lens driving mechanism having the above configuration will be described. In the case of a bimorph as shown in FIG. 4A, different voltages are applied to the upper surface side and the lower surface side of the support arm 13B. For example, a voltage is applied to both piezoelectric elements 14 such that the piezoelectric element 14 on the upper surface side of the support arm 13B extends and the piezoelectric element 14 on the lower surface side of the support arm 13B contracts.
Thereby, the support arm 13B is bent downward as shown in FIG. Also, the piezoelectric element 1 on the lower surface side of the support arm 13B is shrunk so that the piezoelectric element 14 on the upper surface side of the support arm 13B contracts.
A voltage is applied to both piezoelectric elements 14 so that 4 is extended.
Thereby, the support arm 13B is bent upward as shown in FIG. The amount of bending of the support arm 13B can be controlled by controlling the voltage applied to both piezoelectric elements 14.
【００１８】図５（ａ）のようなユニモルフの場合は、
片面の圧電素子１４への電圧印加を制御することによ
り、支持腕１３Ｂの屈曲を変化させる。例えば、圧電素
子１４が伸びるように圧電素子１４に電圧を印加する
と、支持腕１３Ｂは、図５（ｂ）のように下側に屈曲す
る。また、圧電素子１４が縮むように圧電素子１４に電
圧を印加すると、支持腕１３Ｂは、図５（ｃ）のように
上側に屈曲する。そして、支持腕１３Ｂの屈曲量は、圧
電素子１４へ印加する電圧を制御することによって行う
ことができる。In the case of a unimorph as shown in FIG.
The bending of the support arm 13B is changed by controlling the voltage application to the piezoelectric element 14 on one side. For example, when a voltage is applied to the piezoelectric element 14 so that the piezoelectric element 14 extends, the support arm 13B bends downward as shown in FIG. 5B. When a voltage is applied to the piezoelectric element 14 so that the piezoelectric element 14 contracts, the support arm 13B bends upward as shown in FIG. 5C. The amount of bending of the support arm 13 </ b> B can be performed by controlling the voltage applied to the piezoelectric element 14.
【００１９】以上のように本実施の形態によれば、圧電
素子１４へ電圧を印加することにより、支持腕１３Ｂを
屈曲させることができ、しかも圧電素子１４へ印加する
電圧を細かく調節すれば、ピント微調用レンズ１０の移
動を細かく制御することができ、撮影光学系のピント調
整を精度よく且つ高速に行うことが可能となる。また、
圧電素子に印加する電圧と圧電素子の変形量は一般に比
例関係にあり、圧電素子によってピント微調整を行うこ
とに関しては問題はない。As described above, according to the present embodiment, the support arm 13B can be bent by applying a voltage to the piezoelectric element 14, and if the voltage applied to the piezoelectric element 14 is finely adjusted, The movement of the focus fine-adjustment lens 10 can be finely controlled, and the focus adjustment of the photographing optical system can be performed accurately and at high speed. Also,
The voltage applied to the piezoelectric element and the amount of deformation of the piezoelectric element are generally in a proportional relationship, and there is no problem in performing fine focus adjustment using the piezoelectric element.
【００２０】なお、本実施の形態では支持腕１３Ｂが３
つであったが、２つでも良いし、４つ以上でも良い。こ
の場合も、勿論、支持腕１３Ｂをレンズホルダ１１の外
周域に均等に配置する必要がある。In this embodiment, the support arm 13B has three
However, two or four or more may be used. Also in this case, it is of course necessary to arrange the support arms 13B evenly around the outer peripheral area of the lens holder 11.
【００２１】[0021]
【発明の効果】以上説明したように、請求項１に記載の
発明によれば、モータやギヤ等が不要となり、レンズ駆
動機構の収容スペースを小さくできるとともに、部品点
数も少なくすることができる。また、圧電素子の応答性
は優れているので、ピント調整の応答性を向上させるこ
ともできる。As described above, according to the first aspect of the present invention, a motor, a gear, and the like are not required, so that the accommodation space for the lens driving mechanism can be reduced and the number of parts can be reduced. In addition, since the response of the piezoelectric element is excellent, the response of the focus adjustment can be improved.
【００２２】請求項２に記載の発明によれば、円弧状の
板状部材で形成された弾性体をピント微調用レンズの外
周に沿って配置することができるので、レンズ駆動機構
のコンパクト化が達成される。According to the second aspect of the present invention, since the elastic body formed of the arc-shaped plate-like member can be arranged along the outer periphery of the focus fine adjustment lens, the lens drive mechanism can be made compact. Achieved.
【００２３】請求項３に記載の発明によれば、弾性体が
大きく屈曲するため、ピント微調用レンズを広範囲に移
動させることができる。According to the third aspect of the present invention, since the elastic body is largely bent, the focus fine-adjustment lens can be moved in a wide range.
【００２４】請求項４に記載の発明によれば、構成が簡
単となるとともに、片面の圧電素子に対してのみの電圧
制御で済むので、制御が簡単となる。According to the fourth aspect of the present invention, the configuration is simplified, and the voltage control for only one side of the piezoelectric element is sufficient, so that the control is simplified.
【００２５】請求項５に記載の発明によれば、ピント微
調用レンズを弾性体で確実に支持することができる。According to the fifth aspect of the present invention, the focus fine-adjustment lens can be reliably supported by the elastic body.
【図１】本発明に係るレンズ駆動機構が設けられたピン
ト微調用レンズの正面図である。FIG. 1 is a front view of a focus fine-tuning lens provided with a lens driving mechanism according to the present invention.
【図２】図１のＤ−Ｄ線に沿った断面図である。FIG. 2 is a cross-sectional view taken along line DD of FIG.
【図３】圧電素子が取り付けられた円形板状部材の正面
図である。FIG. 3 is a front view of a circular plate-shaped member to which a piezoelectric element is attached.
【図４】図３のＥの範囲を矢印Ｆ方向から見た図であ
る。FIG. 4 is a view of a range E in FIG.
【図５】図４の変形例を示した図である。FIG. 5 is a diagram showing a modification of FIG. 4;
【図６】従来技術によるレンズ駆動機構を示した図であ
る。FIG. 6 is a diagram showing a lens driving mechanism according to the related art.
１０ ピント微調用レンズ １１ レンズホルダ １２ 固定筒 １３ 円形板状部材 １３Ｂ 支持腕（弾性体） １４ 圧電素子 １５ 回路基板 １６ ＣＣＤ Reference Signs List 10 Focus fine adjustment lens 11 Lens holder 12 Fixed cylinder 13 Circular plate member 13B Support arm (elastic body) 14 Piezoelectric element 15 Circuit board 16 CCD
Claims (5)
は全部を光軸方向に沿って移動させて、ピント調整を行
うレンズ駆動機構において、ピント微調用レンズの外周
域に複数の弾性体を均等に配置し、該弾性体で前記ピン
ト微調用レンズを支持するとともに、前記弾性体に圧電
素子を固着して、前記圧電素子に電圧を印加したときの
圧電素子の変形力によって、前記ピント微調用レンズを
光軸方向に移動させることを特徴とするレンズ駆動機
構。1. A lens driving mechanism for adjusting a focus by moving a part or all of a lens constituting a photographing optical system along an optical axis direction, wherein a plurality of elastic bodies are provided in an outer peripheral area of a focus fine adjustment lens. The fine adjustment lens is arranged evenly, the elastic body supports the lens for fine focus adjustment, the piezoelectric element is fixed to the elastic body, and the focus fine adjustment is performed by the deformation force of the piezoelectric element when a voltage is applied to the piezoelectric element. A lens driving mechanism for moving a lens for use in an optical axis direction.
て、前記弾性体は円弧状の板状部材で形成されているこ
とを特徴とするレンズ駆動機構。2. The lens driving mechanism according to claim 1, wherein said elastic body is formed of an arc-shaped plate member.
て、前記板状部材の両面に前記圧電素子が固着されてい
ることを特徴とするレンズ駆動機構。3. The lens driving mechanism according to claim 2, wherein said piezoelectric elements are fixed to both surfaces of said plate-shaped member.
て、前記板状部材の片面に前記圧電素子が固着されてい
ることを特徴とするレンズ駆動機構。4. The lens driving mechanism according to claim 2, wherein said piezoelectric element is fixed to one surface of said plate-shaped member.
て、前記ピント微調用レンズの支持というのは、前記ピ
ント微調用レンズがレンズホルダに保持され、このレン
ズホルダを前記弾性体が支持していることを特徴とする
レンズ駆動機構。5. The lens driving mechanism according to claim 1, wherein the supporting of the focus fine-adjustment lens means that the focus fine-adjustment lens is held by a lens holder, and the elastic body supports the lens holder. A lens driving mechanism, characterized in that:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10841397A JPH10301013A (en) | 1997-04-25 | 1997-04-25 | Lens driving mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10841397A JPH10301013A (en) | 1997-04-25 | 1997-04-25 | Lens driving mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH10301013A true JPH10301013A (en) | 1998-11-13 |
Family
ID=14484137
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10841397A Withdrawn JPH10301013A (en) | 1997-04-25 | 1997-04-25 | Lens driving mechanism |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH10301013A (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2006087408A1 (en) | 2005-02-15 | 2006-08-24 | Nokia Corporation | Piezoelectric actuator element for micromovement |
| JP2006251461A (en) * | 2005-03-11 | 2006-09-21 | Shicoh Eng Co Ltd | Lens drive device |
| JP2006284652A (en) * | 2005-03-31 | 2006-10-19 | Shicoh Eng Co Ltd | Manufacturing method of lens drive device |
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| EP1851808B1 (en) * | 2005-02-15 | 2013-08-14 | Nokia Corporation | Piezoelectric actuator element for micromovement |
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| US7952639B2 (en) * | 2005-02-15 | 2011-05-31 | Nokia Corporation | Piezoelectric actuator element for micromovement |
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| JP2006251461A (en) * | 2005-03-11 | 2006-09-21 | Shicoh Eng Co Ltd | Lens drive device |
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| JP4654359B2 (en) * | 2005-03-31 | 2011-03-16 | シコー株式会社 | Manufacturing method of lens driving device |
| JP2007079258A (en) * | 2005-09-15 | 2007-03-29 | Sharp Corp | Lens holding structure and optical device |
| JP2007155912A (en) * | 2005-12-01 | 2007-06-21 | Fujinon Corp | Shake correcting unit and photographing device |
| JP2007226275A (en) * | 2007-06-14 | 2007-09-06 | Fujifilm Corp | Lens driving device |
| JPWO2009060575A1 (en) * | 2007-11-05 | 2011-03-17 | パナソニック株式会社 | Lens holder driving device and imaging device using surface-driven polymer actuator |
| JP4435290B2 (en) * | 2007-11-05 | 2010-03-17 | パナソニック株式会社 | Lens holder driving device and imaging device using surface-driven polymer actuator |
| KR101159171B1 (en) | 2008-04-15 | 2012-06-22 | 유겐가이샤 메카노 트랜스포머 | Lens actuator |
| JP2011013702A (en) * | 2010-10-21 | 2011-01-20 | Shicoh Engineering Co Ltd | Lens driving device |
| WO2015005217A1 (en) * | 2013-07-10 | 2015-01-15 | 株式会社村田製作所 | Lens module |
| JPWO2015005217A1 (en) * | 2013-07-10 | 2017-03-02 | 株式会社村田製作所 | Lens module |
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