JPH08146488A - Shutter device with lens driving mechanism - Google Patents
Shutter device with lens driving mechanismInfo
- Publication number
- JPH08146488A JPH08146488A JP30700794A JP30700794A JPH08146488A JP H08146488 A JPH08146488 A JP H08146488A JP 30700794 A JP30700794 A JP 30700794A JP 30700794 A JP30700794 A JP 30700794A JP H08146488 A JPH08146488 A JP H08146488A
- Authority
- JP
- Japan
- Prior art keywords
- lens
- opening
- closing member
- neutral position
- shutter
- 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
- 230000003287 optical effect Effects 0.000 claims abstract description 26
- 230000007935 neutral effect Effects 0.000 claims abstract description 19
- 230000002441 reversible effect Effects 0.000 claims description 11
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
Landscapes
- Shutters For Cameras (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】本発明はスチルカメラ等に用いる
シャッタに関し、特に、シャッタ羽根の開閉運動に連係
してレンズ光路内に補助レンズを投入する機能をもつレ
ンズ駆動付きシャッタに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shutter used in a still camera or the like, and more particularly to a shutter with a lens drive having a function of inserting an auxiliary lens into a lens optical path in association with opening / closing movement of shutter blades.
【0002】[0002]
【従来の技術】周知のように、最近のコンパクトカメラ
等においては、撮影者の希望に応じて近接、広角、望遠
撮影を選択できる構造のものがあるが、このような機能
をもつカメラでは、これらの特殊撮影のために、特別の
駆動モータを用いてコンバージョンレンズ等の補助レン
ズをレンズ光路内に投入したのでは、高価な駆動モータ
の使用により製品原価が割高なものとなってしまう。2. Description of the Related Art As is well known, recent compact cameras and the like have a structure capable of selecting close-up, wide-angle, and telephoto shooting according to a photographer's request. If an auxiliary lens such as a conversion lens is inserted into the lens optical path by using a special drive motor for these special photographing operations, the cost of the product becomes high due to the use of the expensive drive motor.
【0003】このため、従来では、シャッタ羽根Aの開
閉運動に連係して焦点レンズBをレンズ光軸α方向に移
動させる機能をもつ図6及び図7図示のレンズ駆動機構
付きシャッタ装置が特開平6−11756号公報により
提案されている。即ち、このレンズ駆動付きシャッタは
レンズ開口Cを開閉する逆転可能な駆動モータDを焦点
レンズBの駆動用に兼用したもので、このレンズ駆動機
構付きシャッタ装置においては、一対のリテーナスプリ
ングE1 ,E2 で中立位置に保持された開閉レバーF
(開閉部材)が用いられる。Therefore, conventionally, the shutter device with a lens driving mechanism shown in FIGS. 6 and 7 has a function of moving the focusing lens B in the direction of the lens optical axis α in association with the opening / closing movement of the shutter blade A. 6-11756. That is, in this shutter with lens drive, a reversible drive motor D for opening and closing the lens aperture C is also used for driving the focusing lens B. In this shutter device with lens drive mechanism, a pair of retainer springs E 1 , Open / close lever F held in neutral position by E 2
(Opening / closing member) is used.
【0004】つまり、逆転可能な駆動モータDの偏心ピ
ンdにより中心軸fを中心として正逆いずれかの方向に
回動される開閉レバーFは、レンズ開口Cを閉鎖するシ
ャッタ羽根Aに連係されており、支点軸aを中心とする
同シャッタ羽根Aの正逆いずれかの回動運動により撮影
レンズのレンズ開口Cが解放される。That is, the opening / closing lever F which is rotated in either forward or reverse directions about the central axis f by the eccentric pin d of the reversible drive motor D is linked to the shutter blade A for closing the lens opening C. Therefore, the lens aperture C of the photographing lens is released by either the forward or reverse rotational movement of the shutter blade A about the fulcrum axis a.
【0005】そして、同開閉レバーFは連動レバーGを
介してレンズ光軸α廻りに一定角度だけ回動できるリン
グ状のレンズ駆動部材Hに連係される。即ち、前記連動
レバーGの従動ピンg1 にはレンズ駆動部材Hの従動片
h1 のスロットh2 が係合してあるから、開閉レバーF
により連動レバーGが支点軸g2 を中心として正逆いず
れかの方向に回動されると、レンズ駆動部材Hが連動レ
バーGと反対方向に回動され、同レンズ駆動部材Hの溝
カムh3 またはヘリコイドにより図7に示す焦点レンズ
Bがレンズ光軸αと平行な方向に移動され、必要な焦点
距離が得られる。The opening / closing lever F is linked to a ring-shaped lens driving member H, which is rotatable about the lens optical axis α by a fixed angle, via an interlocking lever G. That is, since the driven pin g 1 of the interlocking lever G is engaged with the slot h 2 of the driven piece h 1 of the lens driving member H, the opening / closing lever F
When the interlocking lever G is rotated about the fulcrum axis g 2 in either forward or reverse direction, the lens driving member H is rotated in the opposite direction to the interlocking lever G, and the groove cam h of the lens driving member H is rotated. The focal lens B shown in FIG. 7 is moved in the direction parallel to the lens optical axis α by 3 or the helicoid, and the required focal length is obtained.
【0006】[0006]
【発明が解決しようとする課題】しかしながら、前述し
たような従来のレンズ駆動付きシャッタの構造では、レ
ンズ光軸αと直角な面内で回動されるレンズ駆動部材H
で、焦点レンズBをレンズ光軸α方向へ移動させること
になるので、レンズ駆動部材Hの駆動トルクが大きく、
大型の駆動モータDを使用する必要があり、高価な高ト
ルクのモータの使用により、製品原価が高くなる問題が
あった。また、同構造によると、焦点レンズBは撮影レ
ンズ群の一部を構成することになるから、高級な焦点レ
ンズBを使用せざるをえないが、同焦点レンズBの焦点
距離が固定化されるため、使用に応じて高価な焦点レン
ズBを設計する必要があり、量産高価による原価削減に
限界があった。本発明の目的は、以上に述べたような従
来のレンズ駆動付きシャッタの問題に鑑み、駆動トルク
が小さく、比較的安価かつ簡易に製作できるレンズ部材
をもつレンズ駆動付きシャッタを得るにある。However, in the structure of the conventional shutter with lens drive as described above, the lens drive member H which is rotated in the plane perpendicular to the lens optical axis α.
Since the focusing lens B is moved in the direction of the lens optical axis α, the driving torque of the lens driving member H is large,
It is necessary to use a large drive motor D, and there is a problem that the cost of the product increases due to the use of an expensive high torque motor. Further, according to this structure, since the focusing lens B constitutes a part of the photographing lens group, it is unavoidable to use the high-grade focusing lens B, but the focal length of the focusing lens B is fixed. Therefore, it is necessary to design an expensive focusing lens B according to the use, and there is a limit to cost reduction due to high mass production. An object of the present invention is to provide a lens-driving shutter having a lens member which has a small driving torque and can be manufactured relatively inexpensively and easily in view of the problems of the conventional lens-driving shutter as described above.
【0007】[0007]
【課題を解決するための手段】この目的を達成するた
め、本発明は、逆転可能な駆動モータと、通常中立位置
に保持されかつ前記駆動モータによる駆動に応じて中立
位置から2方向に作動する開閉部材と、この開閉部材が
中立位置にあるときレンズ開口を閉鎖しかつ同中立位置
からの開閉部材の運動に従動されてレンズ開口を解放す
るシャッタ羽根とを備えるレンズ駆動付きシャッタにお
いて、中立位置からの開閉部材の運動に応じてレンズ光
軸と直角な面内で従動されるレンズ部材を備え、このレ
ンズ部材は前記開閉部材がいずれかの方向に作動された
ときレンズ光路中に位置される少なくともひとつの補助
レンズを有するレンズ駆動機構付きシャッタ装置を提案
するものである。また、後述する本発明の好ましい実施
例においては、前記レンズ部材は、開閉部材の作動位置
に応じて前記レンズ光路内に介入できる異なる焦点距離
を有する複数のレンズであって、例えば短焦点及び長焦
点レンズであるもの、及び、開閉部材の作動位置に応じ
て前記レンズ光路内に介入できるコンバータレンズであ
るが例示される。To this end, the present invention provides a reversible drive motor and a two-way operation from the neutral position which is normally held in the neutral position and is responsive to drive by said drive motor. A lens-driven shutter including an opening / closing member and a shutter blade that closes the lens opening when the opening / closing member is in the neutral position and releases the lens opening by being driven by the movement of the opening / closing member from the neutral position. A lens member that is driven in a plane perpendicular to the lens optical axis according to the movement of the opening / closing member from the lens, and the lens member is positioned in the lens optical path when the opening / closing member is actuated in either direction. A shutter device with a lens driving mechanism having at least one auxiliary lens is proposed. Further, in a preferred embodiment of the present invention described later, the lens member is a plurality of lenses having different focal lengths that can intervene in the lens optical path according to the operating position of the opening / closing member. Examples are a focusing lens and a converter lens that can intervene in the lens optical path depending on the operating position of the opening / closing member.
【0008】[0008]
【実施例】以下、図1から図5について本発明の実施例
の詳細を説明する。図1から図4は本発明の第1実施例
によるレンズ駆動機構付きシャッタ装置であり、このレ
ンズ駆動機構付きシャッタ装置ではレンズ開口1を開閉
する逆転可能なひとつの駆動モータ2が用いられ、この
駆動モータ2で駆動される偏心ピン3によって回動され
かつ一対のリテーナスプリング4A,4Bで中立位置に
保持された開閉レバー5(開閉部材)でシャッタ羽根6
が駆動される。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The details of the embodiments of the present invention will be described below with reference to FIGS. 1 to 4 show a shutter device with a lens driving mechanism according to a first embodiment of the present invention. In this shutter device with a lens driving mechanism, a reversible drive motor 2 for opening and closing a lens aperture 1 is used. The shutter blade 6 is rotated by the opening / closing lever 5 (opening / closing member) which is rotated by the eccentric pin 3 driven by the drive motor 2 and is held at the neutral position by the pair of retainer springs 4A and 4B.
Is driven.
【0009】即ち、中心軸5aを中心として正逆いずれ
かの方向に回動される開閉レバー5は、図3に示す撮影
レンズのレンズ開口1を閉鎖するシャッタ羽根6の接手
ピン6aに連係され、支点ピン6bを中心とする同シャ
ッタ羽根6の正逆いずれかの回動運動により同レンズ開
口1が解放されて、図3の感光体表面Xへの露光が行わ
れる。That is, the opening / closing lever 5 which is rotated about the central axis 5a in either forward or reverse directions is linked to the joint pin 6a of the shutter blade 6 for closing the lens opening 1 of the photographing lens shown in FIG. , The lens aperture 1 is released by the rotational movement of the shutter blade 6 about the fulcrum pin 6b, either forward or reverse, and the surface of the photoconductor X shown in FIG. 3 is exposed.
【0010】また、前記同開閉レバー5は支点軸7aを
中心として回動できる連動レバー7の対応端の従動ピン
7bに係合された駆動端部5bを備えている。そして、
前記連動レバー7の支点軸7aには成形樹脂製の透明レ
ンズ部材8のアーム8aの先端が支持され、前記連動レ
バー7の位置決めピン7cと前記アーム8aの位置決め
ピン8bとの間には、前記連動レバー7に対するアーム
8aの姿勢を決定する弾性保持スプリング9が当てがわ
れると共に、同アーム8aの両側には、アーム8aの可
動限の位置を定める一対のストッパ10A,10Bが配
置される。つまり、前記支点軸7aに基部を嵌められた
同弾性保持スプリング9は、レンズ部材8に外力が働か
ない限度で連動レバー7の回動運動にレンズ部材8を従
動させるが、レンズ部材8のアーム8aにいずれかのス
トッパ10A,10Bが接触したとき、レンズ部材8を
同回動位置に停止させると同時に、レンズ部材8の停止
に拘りなく、連動レバー7を開閉レバー5の回動運動に
追従させる機能をもつ。The opening / closing lever 5 has a driving end portion 5b which is engaged with a driven pin 7b at the corresponding end of the interlocking lever 7 which is rotatable about a fulcrum shaft 7a. And
The fulcrum shaft 7a of the interlocking lever 7 supports the tip of an arm 8a of a transparent lens member 8 made of molded resin, and between the positioning pin 7c of the interlocking lever 7 and the positioning pin 8b of the arm 8a, An elastic holding spring 9 that determines the attitude of the arm 8a with respect to the interlocking lever 7 is applied, and a pair of stoppers 10A and 10B that determine the movable limit position of the arm 8a are arranged on both sides of the arm 8a. That is, the elastic holding spring 9 having the base portion fitted on the fulcrum shaft 7a causes the lens member 8 to follow the rotational movement of the interlocking lever 7 as long as no external force acts on the lens member 8. When any of the stoppers 10A and 10B comes into contact with 8a, the lens member 8 is stopped at the same rotational position, and at the same time, the interlocking lever 7 follows the rotational movement of the opening / closing lever 5 regardless of the stop of the lens member 8. It has a function to
【0011】前記レンズ部材8は、図3のレンズ光軸α
を含むレンズ光路を運動軌跡とする位置に、図4に示す
短焦点レンズ8c及び長焦点レンズ8dを備え、同短焦
点レンズ8cは、図2に示すように、右側のストッパ1
0Bに前記アーム8aが当たった位置において前記レン
ズ光路内に介入して感光体表面Xに撮影レンズの被写体
像を結像させる。また、前記長焦点レンズ8dは、左側
のストッパ10Aにアーム8aが当たった位置において
前記レンズ光路内に介入して感光体表面Xに被写体像を
結像されるけれども、レンズ部材8が図1に示す中立位
置にあるとき、両短焦点レンズ8c及び長焦点レンズ8
dはレンズ光路外へと退避することになる。The lens member 8 has a lens optical axis α shown in FIG.
The short-focus lens 8c and the long-focus lens 8d shown in FIG. 4 are provided at positions where the lens optical path including the movement path is a movement locus, and the short-focus lens 8c includes the right-side stopper 1 as shown in FIG.
At a position where the arm 8a hits 0B, the object image of the taking lens is formed on the surface X of the photoconductor by intervening in the optical path of the lens. Further, although the long-focus lens 8d intervenes in the lens optical path to form a subject image on the photoconductor surface X at the position where the arm 8a hits the left stopper 10A, the lens member 8 is shown in FIG. When in the shown neutral position, the bifocal lens 8c and the bifocal lens 8
d will be retracted out of the optical path of the lens.
【0012】また、図5は本発明の別の実施例の図4対
応図であり、このレンズ部材8は、前述した短焦点レン
ズ8c及び遠焦点レンズ8dの代わりに、前述したレン
ズ光路に選択的に介入できる円穴8e及びコンバータレ
ンズ8fを備えている。この時、コンバータレンズは長
焦点(望遠)系のテレコンバータレンズであっても、あ
るいは短焦点(広角)系のワイドコンバータや特殊表現
を得られる種々のレンズであるようにしても構わない。
つまり、この実施例における標準距離・画角での撮影と
標準距離・画角以外での撮影とを選択できるカメラであ
って、特に低価格を優先するカメラやレンズ付きフイル
ム等に適した構造であるが、この例からも理解されるよ
うに、本発明のレンズ駆動機構付きシャッタ装置は、レ
ンズ部材を取り替えるだけで、仕様変更に容易に対応で
きる。FIG. 5 is a view corresponding to FIG. 4 of another embodiment of the present invention. This lens member 8 is selected for the lens optical path described above, instead of the short focus lens 8c and the far focus lens 8d. It is provided with a circular hole 8e and a converter lens 8f which can intervene with each other. At this time, the converter lens may be a long focus (telephoto) system teleconverter lens, or a short focus (wide angle) system wide converter or various lenses capable of obtaining a special expression.
In other words, the camera is a camera capable of selecting shooting at a standard distance / angle of view and shooting at a distance other than the standard distance / angle of view in this embodiment, and has a structure suitable for a camera or lens-fitted film in which low cost is prioritized. However, as can be understood from this example, the shutter device with the lens driving mechanism of the present invention can easily cope with the specification change only by replacing the lens member.
【0013】図示実施例によるレンズ駆動機構付きシャ
ッタ装置は、以上のような構造であるから、撮影者が選
択したモードで次のように露光動作を行う。即ち、撮影
者によるレリーズが行われると、選択されたモードに応
じて駆動モータ2が図1の矢印方向またはこの矢印とは
逆の方向に起動されることになる。このため、矢印方向
への回転の場合、偏心ピン3により中心軸5aを中心と
して開閉レバー5が時計方向に回動するが、同開閉レバ
ー5の回動運動に応じて連動レバー7が支点軸7aを中
心として反時計方向に回動し、この回動運動がレンズ部
材8のアーム8aに伝達され、短焦点レンズ8cが撮影
レンズのレンズ光路に介入され、望遠撮影の準備が完了
する。Since the shutter device with the lens driving mechanism according to the illustrated embodiment has the above-described structure, the exposure operation is performed as follows in the mode selected by the photographer. That is, when the release is performed by the photographer, the drive motor 2 is activated in the direction of the arrow in FIG. 1 or in the direction opposite to this arrow according to the selected mode. Therefore, in the case of rotation in the direction of the arrow, the opening / closing lever 5 rotates clockwise about the central axis 5a by the eccentric pin 3, but the interlocking lever 7 rotates the fulcrum shaft according to the rotating movement of the opening / closing lever 5. It rotates counterclockwise around 7a, and this rotational movement is transmitted to the arm 8a of the lens member 8, and the short focus lens 8c intervenes in the lens optical path of the taking lens to complete the preparation for telephoto shooting.
【0014】この後、引き続く駆動モータ2の矢印方向
の回転運動により、開閉レバー5を介してシャッタ羽根
6が支点ピン6bを中心として反時計方向へ回動され、
レンズ開口1が図2に示すように、所定の時間だけ解放
され、感光体表面Xへの露光が行われる。なお、このシ
ャッタ羽根6の解放が終了すると、駆動モータ2が逆転
され、各部材が図1に示す位置に復旧し、露光動作が終
了する。Thereafter, by the subsequent rotational movement of the drive motor 2 in the direction of the arrow, the shutter blade 6 is rotated counterclockwise about the fulcrum pin 6b via the opening / closing lever 5.
As shown in FIG. 2, the lens opening 1 is released for a predetermined time, and the photosensitive member surface X is exposed. When the release of the shutter blades 6 is completed, the drive motor 2 is rotated in the reverse direction, each member is returned to the position shown in FIG. 1, and the exposure operation is completed.
【0015】前述した露光動作においては、レンズ部材
8はレンズ光軸αとは直角な面内で回動されるだけであ
るので、駆動モータ2に要求される駆動トルクは小さ
く、小型の駆動モータ2を用いることができる。また、
本発明で用いるレンズ部材8は、簡単かつ安価な構造で
あるので、同レンズ部材8を仕様に応じて製作するだけ
で、量産効果により安価なレンズ駆動機構付きシャッタ
装置を提供できることになる。In the above-described exposure operation, since the lens member 8 is only rotated in the plane perpendicular to the lens optical axis α, the drive torque required for the drive motor 2 is small and the drive motor is small in size. 2 can be used. Also,
Since the lens member 8 used in the present invention has a simple and inexpensive structure, it is possible to provide an inexpensive shutter device with a lens drive mechanism by mass production by simply manufacturing the lens member 8 according to specifications.
【0016】[0016]
【発明の効果】以上の説明から明らかなように、本発明
によれば、駆動モータの駆動トルクが小さく、使用変更
に容易に応じられる比較的安価なレンズ駆動機構付きシ
ャッタ装置を得ることができる。As is apparent from the above description, according to the present invention, it is possible to obtain a relatively inexpensive shutter device with a lens drive mechanism which has a small drive torque of a drive motor and can be easily changed in use. .
【図1】中立状態にある本発明によるレンズ駆動機構付
きシャッタ装置を示した模式図である。FIG. 1 is a schematic view showing a shutter device with a lens driving mechanism according to the present invention in a neutral state.
【図2】シャッタを解放した状態の同レンズ駆動機構付
きシャッタ装置の模式図である。FIG. 2 is a schematic diagram of the shutter device with a lens driving mechanism in a state where a shutter is released.
【図3】同レンズ駆動機構付きシャッタ装置を組み込ん
だ撮影レンズの断面図である。FIG. 3 is a cross-sectional view of a photographing lens incorporating the shutter device with the lens driving mechanism.
【図4】同レンズ駆動機構付きシャッタ装置に用いるレ
ンズ部材の拡大断面図である。FIG. 4 is an enlarged cross-sectional view of a lens member used in the shutter device with the lens driving mechanism.
【図5】本発明の他の実施例によるレンズ部材の図4相
当断面図である。5 is a sectional view of a lens member according to another embodiment of the present invention, which corresponds to FIG.
【図6】中立状態にある従来のレンズ駆動機構付きシャ
ッタ装置の模式図である。FIG. 6 is a schematic view of a conventional shutter device with a lens driving mechanism in a neutral state.
【図7】同レンズ駆動機構付きシャッタ装置を組み込ん
だ撮影レンズの断面図である。FIG. 7 is a cross-sectional view of a taking lens incorporating the shutter device with the same lens driving mechanism.
【符号の説明】 α レンズ光軸 1 レンズ開口 2 駆動モータ 5 開閉レバー 6 シャッタ羽根 7 連動レバー 8 レンズ部材 8c 短焦点レンズ 8d 長焦点レンズ 8e 円穴 8f テレコンバータレンズ[Explanation of symbols] α lens optical axis 1 lens aperture 2 drive motor 5 opening / closing lever 6 shutter blade 7 interlocking lever 8 lens member 8c short focus lens 8d long focus lens 8e circular hole 8f teleconverter lens
Claims (3)
に保持されかつ前記駆動モータによる駆動に応じて中立
位置から2方向に作動する開閉部材と、この開閉部材が
中立位置にあるときレンズ開口を閉鎖しかつ同中立位置
からの開閉部材の運動に従動されてレンズ開口を解放す
るシャッタ羽根とを備えるレンズ駆動付きシャッタにお
いて、中立位置からの開閉部材の運動に応じてレンズ光
軸と直角な面内で従動されるレンズ部材を備え、このレ
ンズ部材は前記開閉部材がいずれかの方向に作動された
ときレンズ光路中に位置される少なくともひとつの補助
レンズを有することを特徴とするレンズ駆動機構付きシ
ャッタ装置。1. A reversible drive motor, an opening / closing member that is normally held in a neutral position and operates in two directions from the neutral position in response to driving by the driving motor, and a lens opening when the opening / closing member is in the neutral position. A shutter driven by a shutter blade that closes the lens and releases the lens opening by being driven by the movement of the opening / closing member from the neutral position, in a lens orthogonal to the lens optical axis according to the movement of the opening / closing member from the neutral position. A lens driving mechanism comprising a lens member driven in-plane, the lens member having at least one auxiliary lens positioned in a lens optical path when the opening / closing member is actuated in either direction. Shutter device.
に応じて前記レンズ光路内に介入できる異なる焦点距離
を有する複数のレンズであることを特徴とするレンズ駆
動機構付きシャッタ装置。2. A shutter device with a lens driving mechanism, wherein the lens member is a plurality of lenses having different focal lengths that can intervene in the lens optical path according to an operating position of an opening / closing member.
に応じて前記レンズ光路内に介入できるコンバータレン
ズであることを特徴とするレンズ駆動機構付きシャッタ
装置。3. The shutter device with a lens driving mechanism, wherein the lens member is a converter lens that can intervene in the lens optical path according to an operating position of an opening / closing member.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP30700794A JPH08146488A (en) | 1994-11-16 | 1994-11-16 | Shutter device with lens driving mechanism |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP30700794A JPH08146488A (en) | 1994-11-16 | 1994-11-16 | Shutter device with lens driving mechanism |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH08146488A true JPH08146488A (en) | 1996-06-07 |
Family
ID=17963899
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP30700794A Pending JPH08146488A (en) | 1994-11-16 | 1994-11-16 | Shutter device with lens driving mechanism |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH08146488A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6443635B1 (en) | 1999-11-16 | 2002-09-03 | Nidec Copal Corporation | Electromagnetic actuator with auto-retaining of rotor at triple positions |
-
1994
- 1994-11-16 JP JP30700794A patent/JPH08146488A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6443635B1 (en) | 1999-11-16 | 2002-09-03 | Nidec Copal Corporation | Electromagnetic actuator with auto-retaining of rotor at triple positions |
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