JP2001264839A - Blurring correcting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make a blurring correcting device enhanced in driving efficiency and controllability, also small in size and low in cost even though the device has a configuration to hold a supporting frame into the almost center of an optical axis at the blurring correction non-driving time. SOLUTION: This device has a first elastic member 4 provided between the supporting frame 1 and a regulating member 3 and to generate pressing force in a third direction (B direction) so that the supporting frame is held at the neutral point of the moving amount of the third direction to the regulating member and a second elastic member provided between the regulating member and a bottom board and to generate the pressing force in a fourth direction (C direction) so that the regulating member is held at the neutral point of the moving amount of the fourth direction to the bottom board, and the first elastic members are arranged at two positions symmetric to the optical axis so that elastic force is applied in a direction nearly in parallel with the third direction and passing through the optical axis, and the second elastic members are arranged at two positions symmetric to the optical axis so that the elastic force is applied in the direction nearly in parallel with the fourth direction and passing through the optical axis.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【０００１】[0001]

【発明の属する技術分野】本発明は、振れを補正する振
れ補正装置の改良に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a shake correcting device for correcting a shake.

【０００２】[0002]

【従来の技術】現在のカメラは、露出決定やピント合わ
せ等の撮影にとって重要な作業はすべて自動化されてき
ており、カメラ操作に未熟の人でも撮影の失敗を起こす
可能性は非常に少なくなっている。2. Description of the Related Art In a current camera, all operations important for photographing, such as exposure determination and focusing, have been automated, and even a person unskilled in camera operation has a very low possibility of failing in photographing. I have.

【０００３】また、最近では、カメラに加わる手振れに
よる像振れを補正するシステムも研究されており、撮影
者の撮影失敗を誘発する要因は殆ど無くなってきてい
る。Recently, a system for correcting an image blur caused by a camera shake applied to a camera has been studied, and a factor which causes a photographer to fail in photographing has almost disappeared.

【０００４】ここで、手振れによる像振れを補正するシ
ステムについて簡単に説明する。Here, a system for correcting image blur caused by camera shake will be briefly described.

【０００５】撮影時のカメラの手振れは、周波数として
通常１Ｈｚ乃至１２Ｈｚの振動であるが、シャッタのレ
リーズ時点においてこのような手振れを起こしていても
像振れの無い写真を撮影可能とするため、基本的な考え
として、上記手振れによるカメラの振動を検出し、その
検出値に応じて補正レンズを変位させなければならな
い。従って、手振れが生じても像振れを生じない写真を
撮影可能とするためには、第１に、カメラの振動を正確
に検出すること、第２に、カメラの振動による光軸変化
を補正レンズを変位させて補正することが必要となる。[0005] The camera shake at the time of photographing is generally a vibration of 1 Hz to 12 Hz as a frequency. However, even if such camera shake occurs at the time of release of the shutter, it is possible to take a picture without image shake. As a general idea, it is necessary to detect the camera shake caused by the camera shake and to displace the correction lens according to the detected value. Therefore, in order to be able to take a picture in which image shake does not occur even if camera shake occurs, first, it is necessary to accurately detect the camera vibration, and second, to correct the optical axis change due to the camera vibration. Needs to be displaced and corrected.

【０００６】この振動（カメラ振れ）の検出は、原理的
にいえば、加速度，速度等を検出する振れ検出センサ
と、該振れ検出センサの出力信号を電気的あるいは機械
的に積分して変位を出力する手段とをカメラに搭載する
ことによって行うことができる。そして、この検出情報
に基づいて、撮影光軸を変化させるべく搭載された振れ
補正装置内の補正手段（補正レンズや該レンズを保持す
る固定枠等より成る）を制御する（補正レンズを変位さ
せる）ことにより、像振れ補正が可能となる。In principle, this vibration (camera shake) is detected by a shake detection sensor for detecting acceleration, speed, and the like, and a displacement is obtained by electrically or mechanically integrating an output signal of the shake detection sensor. This can be achieved by mounting the output means on a camera. Then, based on this detection information, a correction means (consisting of a correction lens, a fixed frame holding the lens, and the like) in the shake correction apparatus mounted to change the photographing optical axis is controlled (the correction lens is displaced). ) Allows image blur correction.

【０００７】ここで、振れ検出センサを用いた防振シス
テムについて、図４を用いてその概要を説明する。Here, an outline of an anti-shake system using a shake detection sensor will be described with reference to FIG.

【０００８】図４は、図示矢印７１方向のカメラ縦振れ
（ピッチ方向）７１ｐ及びカメラ横振れ（ヨー方向）７
１ｙに由来する像振れを抑制するシステムの一例を示す
図である。FIG. 4 shows a camera vertical shake (pitch direction) 71p and a camera horizontal shake (yaw direction) 7 in the direction of the arrow 71 shown in FIG.
FIG. 3 is a diagram illustrating an example of a system that suppresses image blur caused by 1y.

【０００９】同図中、７２はレンズ鏡筒、７３ｐ，７３
ｙは各々カメラ縦振れ振動、カメラ横振れ振動を検出す
る振れ検出センサで、それぞれの振れ検出方向を７４
ｐ，７４ｙで示してある。７５は補正手段（７７ｐ，７
７ｙは各々補正手段７５に推力を与えるコイル、７６
ｐ，７６ｙは補正手段７５の位置を検出する検出素子）
であり、該補正手段７５は位置制御ループ内に配置され
ており、振れ検出センサ７３ｐ，７３ｙの出力を目標値
として駆動され、像面７８での像安定を確保している。In FIG. 1, reference numeral 72 denotes a lens barrel;
Reference symbol y denotes a shake detection sensor that detects camera vertical shake and camera horizontal shake, respectively.
It is indicated by p, 74y. 75 is a correction means (77p, 7
7y are coils for applying thrust to the correction means 75, 76
p and 76y are detection elements for detecting the position of the correction means 75)
The correction means 75 is disposed in the position control loop, is driven with the outputs of the shake detection sensors 73p and 73y as target values, and secures image stability on the image plane 78.

【００１０】上記の様な防振システムを具備したカメラ
等の光学機器に用いる振れ補正装置は、本出願人より種
々提案されている。その一例を図５〜図７に示す。[0010] The present applicant has proposed various shake correction devices for use in optical devices such as cameras equipped with the above-described image stabilization system. One example is shown in FIGS.

【００１１】図５は、従来の振れ補正装置の主要部の構
成を分解して示す斜視図、図６は、図５の左方向から見
た図（説明の為、ハード基板１１０は取り外し、内部が
見える様にしてある）である。また、図７は、図５の右
方向から見た図である。FIG. 5 is an exploded perspective view showing the structure of a main part of a conventional image stabilizer, and FIG. 6 is a view seen from the left side of FIG. Is visible). FIG. 7 is a diagram viewed from the right in FIG.

【００１２】図５〜図７を用いて従来の形態に係る振れ
補正装置の構成を説明する。Referring to FIGS. 5 to 7, the configuration of a conventional image stabilizing apparatus will be described.

【００１３】補正レンズＬ１は支持枠１０１に保持さ
れ、地板１０２には三方向に光軸垂直の同一面状に摺動
カム１０２ａが設けられている。１０７は摺動ピンであ
り、摺動カム１０２ａを介して支持枠１０１に設けられ
ている３ケ所の穴１０１ａに圧入されることで、支持枠
１０１は地板１０２に対し摺動ピン１０７と摺動カム１
０２ａで結合し、光軸方向に位置規制されているが、光
軸と垂直な平面上のすべての方向に移動できる。１０２
ｆは従来の形態に係る振れ補正装置を固定支持する為の
穴であり、外周上に３ケ所設けられている。この穴に他
の部材、例えばコロを挿入することによって、該振れ補
正装置を光学機器内に支持することができる。The correction lens L1 is held by a support frame 101, and a slide cam 102a is provided on the base plate 102 on the same plane perpendicular to the optical axis in three directions. Reference numeral 107 denotes a sliding pin, which is pressed into three holes 101a provided in the supporting frame 101 via a sliding cam 102a, so that the supporting frame 101 slides on the ground plate 102 with the sliding pin 107. Cam 1
The position is regulated in the direction of the optical axis by coupling at 02a, but can be moved in all directions on a plane perpendicular to the optical axis. 102
f is a hole for fixing and supporting the shake correction apparatus according to the conventional form, and is provided at three places on the outer periphery. By inserting another member, for example, a roller, into the hole, the shake correction device can be supported in the optical device.

【００１４】１０５ｐ，１０５ｙはヨークであり、それ
ぞれピッチ，ヨーの駆動方向に応じて支持枠１０１にビ
ス１１１により固定されている。１０６ｐ，１０６ｙは
永久磁石であり、ヨーク１０５ｐ，１０５ｙに磁気結合
している。１０８ｐ，１０８ｙはコイルユニットで、こ
のコイル１０８ｐ（１０８ｙも同様）は樹脂材にコイル
枠１０８ａと一体成形されており、コイル枠１０８ａに
圧入された導電部材である端子ピン１０８ｂにコイルの
巻線の両端子が接続されてユニット化されており、地板
１０２のコイル取り付け部１０２ｇに接着固定されてい
る。また、端子ピン１０８ｂが後述するプリント配線板
１１０に貫通して半田付けされ、電気的に接続される。Reference numerals 105p and 105y denote yokes, which are fixed to the support frame 101 by screws 111 in accordance with the pitch and yaw driving directions, respectively. 106p and 106y are permanent magnets, which are magnetically coupled to the yokes 105p and 105y. 108p and 108y are coil units, and the coil 108p (similarly to 108y) is integrally formed with a coil frame 108a in a resin material. Both terminals are connected to form a unit, and are adhesively fixed to the coil mounting portion 102g of the main plate 102. Further, the terminal pins 108b are penetrated and soldered to a printed wiring board 110 described later, and are electrically connected.

【００１５】これら対向している磁石とコイルによって
成る駆動手段（のコイル）に通電することによって、前
記補正レンズＬ１，支持枠１０１より成る補正手段が図
５に示すピッチ方向Ｐ及びヨー方向Ｙに駆動され、像振
れが補正される。By energizing (the coil of) the driving means consisting of the magnet and the coil facing each other, the correction means consisting of the correction lens L1 and the support frame 101 is moved in the pitch direction P and the yaw direction Y shown in FIG. It is driven and the image blur is corrected.

【００１６】１０３は係止部材であり、ステッピングモ
ータＡの出力がギア部１０３ａに伝わることにより、係
止部材１０３が所定角度回転され、前記支持枠１０１に
設けられた突起１０１ｂが係止部材１０３のカム１０３
ｃに当接し補正手段を所定の位置にロック（係止）する
ことができる（詳細は後述する）。１０４は規制部材で
あり、２本の軸部１０４ａが地板１０２を貫通して前記
支持枠１０１に設けられている長溝部１０１ｄにそれぞ
れ嵌合している。１１０は、支持枠１０１側にピッチ，
ヨーそれぞれの移動位置に対応する位置検出の為のフォ
トリフレクタ１１４ｐ，１１４ｙが実装されており、ま
た、ステッピングモータＡの端子やコイルユニット１０
８ｐ，１０８ｙの端子、更にはこれらの制御に関わる素
子等が実装されているプリント配線板である。１０９
ｐ，１０９ｙは位置検出用のターゲット部材であり、フ
ォトリフレクタ１１４ｐ，１１４ｙの出力が補正手段の
位置に応じて一定の割合で変化するように白黒のパター
ンが印刷されている。Reference numeral 103 denotes a locking member. When the output of the stepping motor A is transmitted to the gear portion 103a, the locking member 103 is rotated by a predetermined angle, and the projection 101b provided on the support frame 101 is fixed to the locking member 103a. The cam 103
The correction means can be locked (locked) at a predetermined position by abutting on c (details will be described later). Reference numeral 104 denotes a regulating member, and two shaft portions 104a penetrate through the main plate 102 and are fitted into the long groove portions 101d provided in the support frame 101, respectively. 110 is a pitch on the support frame 101 side,
Photoreflectors 114p and 114y for position detection corresponding to the movement position of each yaw are mounted, and the terminals of the stepping motor A and the coil unit 10 are mounted.
This is a printed wiring board on which terminals of 8p and 108y, and elements related to these controls are mounted. 109
p and 109y are target members for position detection, and black and white patterns are printed so that the outputs of the photoreflectors 114p and 114y change at a fixed rate according to the position of the correction means.

【００１７】次に、図５及び図７により、振れ補正装置
の後ろ側について説明する。Next, the rear side of the shake correcting device will be described with reference to FIGS.

【００１８】地板１０２には、係止部材１０３が回転可
能に支持されており、ステッピングモータＡに設けられ
た出力ギヤ（不図示）が該係止部材１０３のギア部１０
３ａと噛み合って、該係止部材１０３を回転方向に駆動
することができる。この係止部材１０３に設けられた４
ケ所のカム１０３ｃは、支持枠１０１に設けられている
４点の突起１０１ｂ（図５では２点しか見えていない）
との関係で、支持枠１０１のロック，アンロックを行う
ことで、係止手段として機能している。A locking member 103 is rotatably supported on the base plate 102. An output gear (not shown) provided for the stepping motor A is connected to a gear portion 10 of the locking member 103.
3a, the locking member 103 can be driven in the rotation direction. 4 provided on this locking member 103
The four cams 103c are provided at four points 101b provided on the support frame 101 (only two points are visible in FIG. 5).
By locking and unlocking the support frame 101 in relation to the above, it functions as locking means.

【００１９】つまり、係止部材１０３を、該係止部材１
０３の逃げ部１０３ｂが支持枠１０１の突起１０１ｂと
同じ位相になるように回転させると、支持枠１０１は係
止部材１０３に対してフリー（アンロック）になるが、
係止部材１０３をカム部１０３ｃが支持枠１０１の突起
１０１ｂと接触して支持枠１０１と係止部材１０３が係
合する位相になるように回転させると、支持枠１０１を
地板１０２に対してロックさせる。That is, the locking member 103 is connected to the locking member 1.
When the escape portion 103b of No. 03 is rotated so as to be in the same phase as the projection 101b of the support frame 101, the support frame 101 becomes free (unlocked) with respect to the locking member 103,
When the locking member 103 is rotated so that the cam portion 103c comes into contact with the protrusion 101b of the support frame 101 and is brought into a phase in which the support frame 101 and the locking member 103 are engaged, the support frame 101 is locked with respect to the main plate 102. Let it.

【００２０】したがって、振れ補正駆動時には、ステッ
ピングモータＡにより係止部材１０３を支持枠１０１が
係止部材１０３に対してフリーな状態（アンロック状
態）になる位相に回転させ、一方、振れ補正非駆動時に
は、係止部材１０３を支持枠１０１が地板１０２に対し
てロックさせた（ロック状態）位相に回転させることに
なる。Therefore, at the time of the shake correction driving, the locking member 103 is rotated by the stepping motor A to a phase in which the support frame 101 is in a free state (unlocked state) with respect to the locking member 103, while the shake correction is not performed. At the time of driving, the locking member 103 is rotated to a phase in which the support frame 101 is locked with respect to the main plate 102 (locked state).

【００２１】上述した構成によって振れ補正駆動を行う
と、支持枠１０１は図５に示すピッチ方向Ｐ及びヨー方
向Ｙ（振れ補正方向）に自由に動くことができる他に、
回転方向Ｒにも移動してしまう。この回転は振れ補正精
度を悪化させるため、従来の形態では、上記回転の影響
を少なくなるするために、以下の方法を採っている。When the shake correction drive is performed by the above-described configuration, the support frame 101 can freely move in the pitch direction P and the yaw direction Y (shake correction direction) shown in FIG.
It also moves in the rotation direction R. Since this rotation deteriorates the shake correction accuracy, the conventional method employs the following method to reduce the influence of the rotation.

【００２２】図５に示す様に、規制部材１０４から延出
する２本の軸部１０４ａが各々係止部材１０３に設けら
れている穴１０３ｄ、地板１０２に設けられている長穴
（不図示）を貫通し、支持枠１０１の長溝部１０１ｄに
嵌合摺動し、支持枠１０１を規制部材１０４に対し、図
６及び図７中のＣ方向にのみ移動できる様に規制してい
る。また、規制部材１０４は地板１０２に設けられた爪
１０２ｂ，１０２ｃ（図７参照）で光軸方向に弾性係合
規制されている。また、突起１０２ｄ及び突起１０２ｅ
の側面に規制部材１０４の摺動面１０４ｂ，１０４ｃが
嵌合摺動し、規制部材１０４を図５，６中のＢ方向にの
み移動できる様に規制している。As shown in FIG. 5, two shaft portions 104a extending from the regulating member 104 are provided with a hole 103d provided in the locking member 103 and a long hole (not shown) provided in the main plate 102, respectively. , And is fitted and slid into the long groove portion 101d of the support frame 101, thereby restricting the support frame 101 with respect to the regulating member 104 so as to be movable only in the direction C in FIGS. The restricting member 104 is elastically restricted in the optical axis direction by claws 102b and 102c (see FIG. 7) provided on the base plate 102. Also, the protrusion 102d and the protrusion 102e
The sliding surfaces 104b and 104c of the restricting member 104 are fitted and slid on the side surfaces of the restricting member 104 to restrict the restricting member 104 to be movable only in the direction B in FIGS.

【００２３】以上の様な構成にする事で、支持枠１０１
は地板１０２に対して回転できなくなり、上記マグネッ
ト１０６，コイルユニット１０８による駆動力によりピ
ッチ方向、ヨー方向にのみ移動することができる。詳細
は図５、６のＢ方向に対しては、回転規制部材１０４と
共に支持枠１０１が地板１０２に対して移動し、Ｂ方向
と直角方向（Ｃ方向）には軸１０４ａ，長溝１０１ｄに
より支持枠１０１のみが地板１０２に対して移動する。With the above configuration, the support frame 101
Cannot rotate with respect to the ground plate 102, and can move only in the pitch direction and the yaw direction by the driving force of the magnet 106 and the coil unit 108. 5 and 6, the support frame 101 moves with respect to the main plate 102 together with the rotation restricting member 104 in the direction B, and the shaft 104a and the long groove 101d in the direction perpendicular to the direction B (direction C). Only 101 moves with respect to main plate 102.

【００２４】また、振れ補正非駆動時に係止部材によっ
て支持枠を係止する機構を設けていない従来例も本出願
人より種々提案されている。The present applicant has also proposed various conventional examples in which a mechanism for locking the support frame by the locking member when the shake correction is not driven is not provided.

【００２５】これらの提案の中には、振れ補正非駆動時
に支持枠を略光軸中心に保持するために、特許公報第２
７２０９５５号では、ヨー方向に駆動するための第１の
駆動部を有する第１の保持枠と、ピッチ方向に駆動する
ための第２の駆動部を有する第２の保持枠と、第１の保
持枠を固定部に対してヨー方向にガイドするために光軸
に対して対向２ヶ所に設けられた２本の第１のガイドバ
ーと、第２の保持枠を第１の保持枠に対してピッチ方向
にガイドするために光軸に対して対向２ヶ所に設けられ
た２本の第２のガイドバーを有し、第１の保持枠を固定
部に対して一対のヨーコイルバネのバネバランスにより
ヨー方向に中立させ、第２の保持枠を第１の保持枠に対
して一対のピッチコイルバネのバネバランスによりヨー
方向に中立させており、また、特開平１１−１０９４３
５号では、振れ非補正時に支持枠を略光軸中心に保持す
るために、支持枠を固定部に対して３本のバネにより弾
性支持している。Some of these proposals include a technique disclosed in Japanese Patent Application Laid-Open No. H10-264, in which the support frame is held substantially at the center of the optical axis when the shake correction is not performed.
No. 720955 discloses a first holding frame having a first driving section for driving in the yaw direction, a second holding frame having a second driving section for driving in the pitch direction, and a first holding section. Two first guide bars provided at two locations facing the optical axis to guide the frame in the yaw direction with respect to the fixed portion, and a second holding frame with respect to the first holding frame. It has two second guide bars provided at two places facing the optical axis to guide in the pitch direction, and the first holding frame is fixed to the fixed portion by the spring balance of a pair of yaw coil springs. The second holding frame is neutralized in the yaw direction with respect to the first holding frame by a spring balance of a pair of pitch coil springs.
In No. 5, in order to hold the support frame substantially at the center of the optical axis when the shake is not corrected, the support frame is elastically supported by three springs with respect to the fixed portion.

【００２６】[0026]

【発明が解決しようとする課題】しかしながら、振れ補
正非駆動時に上記支持枠を係止する機構を有する従来例
の振れ補正装置においては、振れ補正非駆動時には係止
部材によって支持枠を係止することによって、支持枠
（補正光学系）を略光軸中心に保持し、例えば携帯時の
外乱による破損を防止するように構成しているため、振
れ補正装置が複雑化，大型化するとともに部品点数の増
加によるコストアップが問題となっていた。However, in the conventional shake correction device having a mechanism for locking the support frame when the shake correction is not driven, the support frame is locked by the locking member when the shake correction is not driven. In this way, the support frame (correction optical system) is held substantially at the center of the optical axis, and is configured to prevent damage due to external disturbances during carrying, for example, so that the shake correction device becomes complicated and large, and the number of components is increased. The cost increase due to the increase in the number has been a problem.

【００２７】また、振れ補正非駆動時に係止部材によっ
て支持枠を係止する機構を設けていない特許公報第２７
２０９５５号や特開平１１−１０９４３５号においては
それぞれ以下のような問題点があった。[0027] Also, a mechanism for locking the support frame by the locking member when the shake correction is not driven is not provided.
JP-A-20955 and JP-A-11-109435 have the following problems.

【００２８】まず、特許公報第２７２０９５５号におい
ては、第１の保持枠、第２の保持枠ともに光軸に対して
対向２ヶ所に設けられた２本のガイドバーに設けられた
一対のコイルバネのバネバランスにより中立させる、と
いうように構造が複雑化してしまう上、それぞれのガイ
ドバーにおいてバネバランスがくずれてしまうと光軸を
中心とした回転方向の力が働いてしまうため、ガイドバ
ーにこじりが発生し駆動効率が悪くなってしまうため、
調整機構が必要となってしまうなど構造が複雑化，大型
化するとともに、部品点数の増加によるコストアップが
問題となっていた。また、この実施の形態では、第１の
保持枠及び第２の保持枠それぞれに独立して駆動部が設
けられているため、ピッチ方向の駆動とヨー方向の駆動
のどちらかに遅れが生じてしまうという制御性に問題が
あった。First, in Japanese Patent Publication No. 2720955, a first holding frame and a second holding frame are provided with a pair of coil springs provided on two guide bars provided at two places opposed to the optical axis. In addition to complicating the structure such as neutralizing due to spring balance, if the spring balance is broken in each guide bar, a force in the rotation direction around the optical axis will work, so the guide bar will be twisted. Occurs and the driving efficiency deteriorates,
The structure becomes complicated and large, such as the necessity of an adjustment mechanism, and the cost increase due to the increase in the number of parts has been a problem. Further, in this embodiment, since the first holding frame and the second holding frame are each provided with a driving unit independently, a delay occurs in either the driving in the pitch direction or the driving in the yaw direction. There was a problem in the controllability that it would be lost.

【００２９】また、特開平１１−１０９４３５号におい
ては、支持枠を固定部に対して３本のバネにより弾性支
持しているため、バネの弾性方向（引張りバネであれば
引張り及び圧縮方向）以外にバネのたわみ方向（バネの
曲がり方向）の弾性力により駆動方向以外の力及び回転
方向の力が働いてしまうため、駆動効率，制御性共に悪
くなってしまうといった問題点があった。In Japanese Patent Application Laid-Open No. 11-109435, the support frame is elastically supported by three springs with respect to the fixed portion. In addition, since a force other than the driving direction and a force in the rotating direction act due to the elastic force in the bending direction of the spring (the bending direction of the spring), there is a problem that both the driving efficiency and the controllability deteriorate.

【００３０】（発明の目的）本発明の第１の目的は、振
れ補正非駆動時に支持枠を略光軸中心に保持する構成を
持ちながら、該装置の駆動効率、制御性を良好で、か
つ、該装置の小型化，低コスト化を図ることのできる振
れ補正装置を提供しようとするものである。(Object of the Invention) A first object of the present invention is to improve the drive efficiency and controllability of the apparatus while maintaining the support frame substantially at the center of the optical axis when the shake correction is not driven. It is another object of the present invention to provide a shake correction device capable of reducing the size and cost of the device.

【００３１】本発明の第２の目的は、第１の駆動手段と
第２の駆動手段のそれぞれの駆動制御を同様に行えるこ
とを可能にし、各手段の構成の簡略化、低コスト化を達
成することのできる振れ補正装置を提供しようとするも
のである。A second object of the present invention is to enable the same drive control of the first drive means and the second drive means, thereby achieving simplification of the structure of each means and cost reduction. It is an object of the present invention to provide a shake correction device that can perform the shake correction.

【００３２】[0032]

【課題を解決するための手段】上記第１の目的を達成す
るために、請求項１に記載の発明は、レンズあるいは撮
像素子を支持する支持枠と、該支持枠に設けられ、該支
持枠を第１の方向に移動させる為に推力を発生させる第
１の駆動手段と、前記支持枠に設けられ、該支持枠を前
記第１の方向と直交する第２の方向に移動させる為に推
力を発生させる第２の駆動手段と、前記支持枠を第３の
方向にのみ移動規制する規制部材と、該規制部材を第３
の方向と直交する第４の方向にのみ移動規制する地板と
を有する振れ補正装置において、前記支持枠と前記規制
部材の間に設けられ、前記支持枠を前記規制部材に対し
て前記第３の方向の移動量の中立点に保持する為に前記
第３の方向に付勢力を発生する第１の弾性部材と、前記
規制部材と前記地板の間に設けられ、前記規制部材を前
記地板に対して前記第４の方向の移動量の中立点に保持
する為に前記第４の方向に付勢力を発生する第２の弾性
部材とを有し、前記第１の弾性部材を、前記第３の方向
に略平行でかつ光軸を通る方向に弾性力が働くように前
記光軸に対して対称な位置に２ヶ所配置し、前記第２の
弾性部材を、前記第４の方向に略平行でかつ光軸を通る
方向に弾性力が働くように前記光軸に対して対称な位置
に２ヶ所配置する振れ補正装置とするものである。According to a first aspect of the present invention, there is provided a support frame for supporting a lens or an image sensor, the support frame being provided on the support frame, and being provided on the support frame. First driving means for generating a thrust to move the support frame in a first direction; and thrust for moving the support frame in a second direction orthogonal to the first direction. A driving means for generating the force, a regulating member for regulating the movement of the support frame only in a third direction, and a regulating member
In a shake correction device having a main plate that restricts movement only in a fourth direction orthogonal to the direction of the third direction, the vibration correction device is provided between the support frame and the restricting member, and the support frame is moved in the third direction with respect to the restricting member. A first elastic member that generates an urging force in the third direction to hold the moving amount in the direction at a neutral point, and a first elastic member that is provided between the regulating member and the main plate; A second elastic member for generating a biasing force in the fourth direction to hold the moving amount in the fourth direction at a neutral point. Are arranged at two positions symmetrical with respect to the optical axis so that an elastic force acts in a direction passing through the optical axis in a direction substantially parallel to the direction, and the second elastic member is substantially parallel to the fourth direction. And at two positions symmetrical with respect to the optical axis so that elastic force acts in a direction passing through the optical axis. It is one in which the correction device.

【００３３】上記構成によれば、支持枠に対しては、該
支持枠の移動方向である第３の方向と略平行である第１
の弾性部材の弾性方向の力のみが、規制部材に対して
は、該規制部材の移動方向である第４の方向と略平行で
ある第２の弾性部材の弾性方向の力のみが働くように構
成し、結果的に支持枠に対して弾性部材のたわみ方向の
力が働くことがないようにしている。According to the above configuration, with respect to the support frame, the first direction which is substantially parallel to the third direction which is the moving direction of the support frame.
So that only the force in the elastic direction of the elastic member of the second elastic member acts substantially on the regulating member in the elastic direction of the second elastic member substantially parallel to the fourth direction that is the moving direction of the regulating member. With this configuration, as a result, the force in the bending direction of the elastic member does not act on the support frame.

【００３４】また、上記第２の目的を達成するために、
請求項２に記載の発明は、第３の方向（支持枠の規制部
材に対して移動する方向）を、第１の方向（支持枠に第
１の駆動手段の推力が働く方向）に対して所定角度傾け
るようにした請求項１に記載の振れ補正装置とするもの
である。In order to achieve the second object,
According to the second aspect of the present invention, the third direction (the direction in which the support frame moves with respect to the regulating member) is changed with respect to the first direction (the direction in which the thrust of the first driving means acts on the support frame). A shake correction device according to claim 1, wherein the shake correction device is inclined at a predetermined angle.

【００３５】上記構成によれば、前記第３の方向を、前
記第１の方向に対して所定角度（具体例としては、４５
°）傾むけ、第１の方向に移動させるために推力を発生
させる第１の駆動手段と、第２の方向に移動させるため
に推力を発生させる第２駆動手段に必ず同じ駆動負荷が
かかるようにしている。According to the above configuration, the third direction is set at a predetermined angle (for example, 45 degrees) with respect to the first direction.
°) The same driving load is always applied to the first driving means for generating thrust for tilting and moving in the first direction and the second driving means for generating thrust for moving in the second direction. I have to.

【００３６】[0036]

【発明の実施の形態】以下、本発明を図示の実施の形態
に基づいて詳細に説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail based on illustrated embodiments.

【００３７】図１〜図３は本発明の実施の一形態に係る
振れ補正装置を示す図であり、詳しくは、図１は振れ補
正装置の主要部の構成部品を分解して示す斜視図、図２
は図１に示す補正移動部（支持枠、摺動ピン、ヨーク及
びターゲット部材）と規制部材の関係を表した図、図３
は図１に示す規制部材と地板の関係を示す図である。FIGS. 1 to 3 are views showing a shake correcting apparatus according to an embodiment of the present invention. More specifically, FIG. 1 is an exploded perspective view showing main components of the shake correcting apparatus. FIG.
FIG. 3 is a diagram showing a relationship between a correction moving unit (a support frame, a sliding pin, a yoke, and a target member) shown in FIG. 1 and a regulating member.
FIG. 2 is a diagram illustrating a relationship between a regulating member and a main plate illustrated in FIG. 1.

【００３８】まず、図１〜図３を用いて本発明の実施の
一形態に係る振れ補正装置の構成を説明する。First, the configuration of a shake correction apparatus according to an embodiment of the present invention will be described with reference to FIGS.

【００３９】補正レンズＬ１は支持枠１に保持され、地
板２には三方向に光軸垂直の同一面状に摺動カム２ａが
設けられている。８は摺動ピンであり、摺動カム２ａを
介して支持枠１に設けられている３ケ所の穴１ａに圧入
されることで、支持枠１は地板２に対し摺動ピン８と摺
動カム２ａで結合し、光軸方向に位置規制されている
が、光軸と垂直な平面上のすべての方向に移動できる。
２ｈは本実施の形態に係る振れ補正装置を固定支持する
為の穴であり、外周上に３ケ所設けられている。この穴
に他の部材、例えばコロを挿入することによって、該振
れ補正装置を光学機器内に支持することができる。The correction lens L1 is held by the support frame 1, and the base plate 2 is provided with a sliding cam 2a on the same plane perpendicular to the optical axis in three directions. Reference numeral 8 denotes a sliding pin, which is pressed into three holes 1a provided in the supporting frame 1 via a sliding cam 2a, so that the supporting frame 1 slides on the base plate 2 with the sliding pin 8. Although they are connected by the cam 2a and their positions are regulated in the optical axis direction, they can be moved in all directions on a plane perpendicular to the optical axis.
2h is a hole for fixing and supporting the shake correction apparatus according to the present embodiment, and is provided at three places on the outer periphery. By inserting another member, for example, a roller, into this hole, the shake correction device can be supported in the optical device.

【００４０】６ｐ，６ｙはヨークであり、それぞれピッ
チ，ヨーの駆動方向に応じて支持枠１にビス１２により
固定されている。７ｐ，７ｙは永久磁石であり、ヨーク
６ｐ，６ｙに磁気結合している。９ｐ，９ｙはコイルユ
ニットで、このコイル９ｐ（９ｙも同様）は樹脂材にコ
イル枠９ａと一体成形されており、コイル枠９ａに圧入
された導電部材である端子ピン９ｂにコイルの巻線の両
端子が接続されてユニット化されており、地板２のコイ
ル取り付け部２ｉに接着固定されている。また、端子ピ
ン９ｂが後述するプリント配線板１１に貫通して半田付
けされ、電気的に接続される。Reference numerals 6p and 6y denote yokes, which are fixed to the support frame 1 by screws 12 according to the pitch and yaw driving directions, respectively. 7p and 7y are permanent magnets, which are magnetically coupled to the yokes 6p and 6y. 9p and 9y are coil units. The coil 9p (same for 9y) is formed integrally with the coil frame 9a in a resin material, and the coil of the coil is wound on a terminal pin 9b which is a conductive member pressed into the coil frame 9a. Both terminals are connected to form a unit, and are adhesively fixed to the coil mounting portion 2i of the main plate 2. Further, the terminal pins 9b are penetrated and soldered to a printed wiring board 11, which will be described later, and are electrically connected.

【００４１】これら対向している磁石とコイルによって
成る駆動手段（のコイル）に通電することによって、前
記補正レンズＬ１，支持枠１より成る補正手段がピッチ
方向Ｐ及びヨー方向Ｙに駆動され、像振れが補正され
る。By energizing (the coil of) the driving means consisting of the magnet and the coil facing each other, the correction means consisting of the correction lens L1 and the support frame 1 is driven in the pitch direction P and the yaw direction Y, and the image The shake is corrected.

【００４２】３は規制部材であり、２本の軸部３ａが地
板２を貫通して前記支持枠１に設けられている長溝部１
ｄに嵌合している。１０は、支持枠１側にピッチ，ヨー
それぞれの移動位置に対応する位置検出の為のフォトリ
フレクタ１５ｐ, １５ｙが裏面に実装されており、ま
た、コイルユニット９ｐ，９ｙの端子、更にはこれらの
制御に関わる素子等が実装されているプリント配線板で
ある。１０ｐ，１０ｙは位置検出用のターゲット部材で
あり、フォトリフレクタ１５ｐ，１５ｙの出力が補正手
段の位置に応じて一定の割合で変化するように白黒のパ
ターンが印刷されている。Reference numeral 3 denotes a regulating member, and a long groove portion 1 provided in the support frame 1 with two shaft portions 3a penetrating the base plate 2.
d. Reference numeral 10 denotes a support frame 1 on which photoreflectors 15p and 15y for position detection corresponding to the respective movement positions of the pitch and yaw are mounted on the back surface, terminals of the coil units 9p and 9y, and terminals This is a printed wiring board on which elements related to control and the like are mounted. Reference numerals 10p and 10y denote target members for position detection, on which black-and-white patterns are printed so that the outputs of the photoreflectors 15p and 15y change at a fixed rate according to the position of the correction means.

【００４３】上述した構成によって振れ補正駆動を行う
と、支持枠１は図１に示すピッチ方向Ｐ及びヨー方向Ｙ
（振れ補正方向）に自由に動くことができる他に、回転
方向Ｒにも移動してしまう。この回転は振れ補正精度を
悪化させるため、本実施例の形態では、上記回転の影響
を少なくなるするために、以下の方法を採っている。When the shake correction drive is performed by the above-described configuration, the support frame 1 is moved in the pitch direction P and the yaw direction Y shown in FIG.
In addition to being free to move in the (vibration correction direction), it also moves in the rotation direction R. Since this rotation deteriorates the shake correction accuracy, in the embodiment, the following method is employed in order to reduce the influence of the rotation.

【００４４】図１〜図３に示す様に、規制部材３から延
出する２本の軸部３ａが各々地板２に設けられている長
穴２ｇを貫通し、支持枠１の長溝部１ｄに各々嵌合摺動
し、支持枠１を規制部材３に対し、図２及び図３中のＣ
方向にのみ移動できる様に規制している。また、規制部
材３は地板２に設けられた爪２ｂ，２ｃ，２ｄで光軸方
向に弾性係合規制されている。また、突起２ｃ及び突起
２ｄの側面に規制部材３の摺動面３ｂ，３ｃがそれぞれ
嵌合摺動し、規制部材３を図２及び図３中のＢ方向にの
み移動できる様に規制している。As shown in FIGS. 1 to 3, two shaft portions 3 a extending from the regulating member 3 respectively penetrate through the elongated holes 2 g provided in the base plate 2, and are inserted into the elongated grooves 1 d of the support frame 1. Each of them is fitted and slid, and the support frame 1 is moved in relation to the regulating member 3 in FIG.
It is restricted to move only in the direction. The restricting member 3 is elastically restricted in the optical axis direction by claws 2b, 2c, 2d provided on the base plate 2. Also, the sliding surfaces 3b and 3c of the regulating member 3 are fitted and slid on the side surfaces of the projections 2c and 2d, respectively, and the regulating member 3 is regulated so as to be movable only in the direction B in FIGS. I have.

【００４５】以上の様な構成にする事で、支持枠１は地
板２に対して回転できなくなり、上記マグネット７，コ
イルユニット９による駆動力によりピッチ方向，ヨー方
向にのみ移動することができる。詳細は図２及び図３の
Ｂ方向に対しては、規制部材３と共に支持枠１が地板２
に対して移動し、Ｂ方向と直角方向（Ｃ方向）には軸３
ａ，長溝１ｄにより支持枠１のみが地板２に対して移動
する。With such a configuration, the support frame 1 cannot rotate with respect to the base plate 2 and can move only in the pitch direction and the yaw direction by the driving force of the magnet 7 and the coil unit 9. For details, the support frame 1 and the restricting member 3
In the direction perpendicular to the direction B (direction C).
a, only the support frame 1 moves with respect to the main plate 2 by the long groove 1d.

【００４６】さらに、この実施の形態では、振れ補正非
駆動時に支持枠（補正光学系）を略光学中心に保持する
ために、以下の方法を採っている。Further, in this embodiment, the following method is employed to hold the support frame (correction optical system) substantially at the optical center when the shake correction is not driven.

【００４７】図１〜図３に示すように、支持枠１の対向
２ヶ所に設けられた長溝１ｄ内の壁部１ｆと規制部材３
に設けられた２本の軸部３ａの間にそれぞれ第１の弾性
部材４（ここでは圧縮バネ）を設け、支持枠１を規制部
材３に対して支持枠１の移動方向（Ｃ方向）の移動量の
略中立点に保持するようにしている。また、地板２に設
けられた突起部２ｅ，２ｆと規制部材３に設けられた突
起部３ｄ，３ｆ（紙面裏側）の間にそれぞれ第２の弾性
部材５（ここでは圧縮バネ）を設け、規制部材３を地板
２に対して規制部材３の移動方向（Ｂ方向）の移動量の
略中立点に保持するようにしている。こうすることで、
支持枠１を地板２に対し略光学中心に保持するように
し、従来の振れ補正装置で設けられていた係止部材及び
係止部材を駆動するための駆動部を廃止している。As shown in FIGS. 1 to 3, a wall 1 f in a long groove 1 d provided at two opposing positions of a support frame 1 and a regulating member 3.
A first elastic member 4 (here, a compression spring) is provided between the two shaft portions 3a provided on the support frame 1, and the support frame 1 is moved relative to the regulating member 3 in the moving direction (C direction) of the support frame 1. The movement amount is held at a substantially neutral point. Further, second elastic members 5 (compression springs in this case) are provided between the projections 2e and 2f provided on the base plate 2 and the projections 3d and 3f (rear side on the paper) provided on the regulating member 3, respectively. The member 3 is held at a substantially neutral point of the amount of movement of the regulating member 3 in the movement direction (B direction) with respect to the main plate 2. By doing this,
The support frame 1 is held substantially at the optical center with respect to the base plate 2, and a locking member provided in the conventional shake correction device and a driving unit for driving the locking member are eliminated.

【００４８】また、このように地板２に対する規制部材
３の移動方向（Ｂ方向）に対しては第１の弾性部材４の
みの付勢力が働き、規制部材３に対する支持枠１の移動
方向（Ｃ方向）に対しては第２の弾性部材５のみの付勢
力が働くように構成しているため、支持枠１及び規制部
材３に回転する力が発生することなく（駆動効率を低下
させることなく又制御性を良好に保ちながら）振れ補正
駆動させることができる。As described above, the urging force of only the first elastic member 4 acts on the moving direction (B direction) of the regulating member 3 with respect to the base plate 2, and the moving direction (C) of the supporting frame 1 with respect to the regulating member 3. Direction), the urging force of only the second elastic member 5 acts, so that no rotational force is generated on the support frame 1 and the regulating member 3 (without lowering the driving efficiency). In addition, it is possible to perform shake correction driving while maintaining good controllability.

【００４９】最後に、上記の実施の形態の効果を、発明
との対応関係を明示しながら、以下に説明する。Finally, the effects of the above embodiment will be described below while clearly showing the correspondence with the invention.

【００５０】支持枠１にピッチ方向（第１の方向）に移
動させる為に推力を発生させる第１の駆動手段（ヨーク
６ｐ，永久磁石７ｐ，コイルユニット９ｐ）と、前記第
１の方向と直交するヨー方向（第２の方向）に移動させ
る為に推力を発生させる第２の駆動手段（ヨーク６ｙ，
永久磁石７ｙ，コイルユニット９ｙ）とを設けているた
め、ピッチ方向とヨー方向の駆動のどちらにも遅れが生
じることがない。A first driving means (yoke 6p, permanent magnet 7p, coil unit 9p) for generating a thrust for moving the support frame 1 in the pitch direction (first direction) is orthogonal to the first direction. Second driving means (yoke 6y, yoke 6y,
Since the permanent magnet 7y and the coil unit 9y) are provided, there is no delay in driving in both the pitch direction and the yaw direction.

【００５１】また、この構成において、支持枠１に対し
ては、該支持枠１の移動方向であるＢ方向（第３の方
向）と略平行である第１の弾性部材４の弾性方向（圧縮
バネであれば圧縮及び引張り方向）の力のみが、規制部
材３に対しては、該規制部材３の移動方向であるＣ方向
（第４の方向）と略平行である第２の弾性部材５の弾性
方向（圧縮バネであれば圧縮及び引張り方向）の力のみ
が働くように構成しているため、結果的に支持枠１に対
して各弾性部材４，５のたわみ方向（バネの曲がり方
向）の力（規制部材，支持枠の移動方向以外の力及び回
転方向の力）が働くことがない。したがって、簡単な構
成で、振れ補正非駆動時に支持枠（補正光学系）を略光
軸中心に保持することができると共に、駆動効率を低下
させることなく、また制御性を良好に保ちながら、振れ
補正装置の小型化、低コスト化が図れる。In this configuration, the elastic direction (compression) of the first elastic member 4 which is substantially parallel to the direction B (third direction), which is the direction of movement of the support frame 1, is applied to the support frame 1. In the case of a spring, only the force in the compression and extension directions is applied to the regulating member 3 by the second elastic member 5 which is substantially parallel to the direction C (fourth direction) which is the moving direction of the regulating member 3. Is applied only in the direction of elasticity (compression and tension in the case of a compression spring), so that the elastic members 4 and 5 flex with respect to the support frame 1 (the bending direction of the spring). ) (Forces other than the movement direction of the regulating member and the support frame and the forces in the rotation direction) do not act. Accordingly, with a simple configuration, the support frame (correction optical system) can be held substantially at the center of the optical axis when the shake correction is not driven, and the shake is achieved without lowering the drive efficiency and maintaining good controllability. The size and cost of the correction device can be reduced.

【００５２】さらに、前記Ｂ方向（第３の方向：支持枠
１の規制部材３に対して移動する方向）を、前記ピッチ
方向（第１の方向：支持枠１に第１の駆動手段の推力が
働く方向）に対して４５°傾むけたことを特徴とし、前
記第１の駆動手段と前記第２駆動手段に必ず同じ駆動負
荷がかかるようにしているので、双方の駆動を同じに制
御することができ、駆動回路の簡略化、低コスト化を図
ることができる。Further, the direction B (third direction: a direction in which the support frame 1 moves with respect to the regulating member 3) is changed in the pitch direction (first direction: the thrust of the first drive means to the support frame 1). (The direction in which works), and the same drive load is always applied to the first drive means and the second drive means, so that both drives are controlled to be the same. Thus, the driving circuit can be simplified and the cost can be reduced.

【００５３】（変形例）上記実施の形態では、第１の弾
性部材４及び第２の弾性部材５には圧縮バネを使用した
が、引張りバネや、板バネなど、弾性を有するものであ
ればいかなるものを使用しても同じ効果があることはい
うまでもない。(Modification) In the above embodiment, a compression spring is used for the first elastic member 4 and the second elastic member 5, but any elastic member such as a tension spring or a leaf spring may be used. It goes without saying that the same effect can be obtained by using any of them.

【００５４】また、円環形状をした規制部材３を使用
し、該規制部材３を地板２に対して略中立させ、また支
持枠２を規制部材３に対して略中立させるように構成し
たが、地板に対して移動規制されるとともに支持枠をそ
の直交方向に移動規制するように構成し、支持枠を規制
部材に対して中立させる弾性部材及び規制部材を地板に
対して中立させる弾性部材を、光軸と直交する方向に弾
性力が働くように光軸に対して対称な位置に２ヶ所配置
すれば、どのような形状のものを規制部材としても同じ
効果がある振れ補正装置を構成することができることは
言うまでもない。Further, although the annular regulating member 3 is used, the regulating member 3 is substantially neutralized with respect to the main plate 2 and the support frame 2 is substantially neutralized with respect to the regulating member 3. An elastic member configured to restrict movement of the support frame in a direction perpendicular to the base frame while being restricted from moving with respect to the base plate, and an elastic member that neutralizes the support frame with respect to the base member and an elastic member that neutralizes the control member with respect to the base plate. By arranging at two locations symmetrical with respect to the optical axis so that elastic force acts in a direction orthogonal to the optical axis, a shake correction device having the same effect as that of any shape as the regulating member is configured. It goes without saying that it can be done.

【００５５】また、上記実施の形態では、補正レンズＬ
１を光軸と直交する方向に駆動して振れ補正を行うよう
にしているが、撮像素子を光軸と直交する方向に駆動し
て振れ補正を行うようにしてもよい。In the above embodiment, the correction lens L
Although the camera 1 is driven in a direction perpendicular to the optical axis to perform shake correction, the image sensor may be driven in a direction perpendicular to the optical axis to perform shake correction.

【００５６】[0056]

【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、振れ補正非駆動時に支持枠を略光軸中心
に保持する構成を持ちながら、該装置の駆動効率、制御
性を良好で、かつ、該装置の小型化，低コスト化を図る
ことができる振れ補正装置を提供できるものである。As described above, according to the first aspect of the present invention, the driving efficiency and controllability of the apparatus are maintained while the support frame is held substantially at the center of the optical axis when the shake correction is not driven. And an image stabilizing apparatus capable of reducing the size and cost of the apparatus.

【００５７】また、請求項２に記載の発明によれば、第
１の駆動手段と第２の駆動手段のそれぞれの駆動制御を
同様に行えることを可能にし、各手段の構成の簡略化、
低コスト化を達成することができる振れ補正装置を提供
できるものである。According to the second aspect of the present invention, it is possible to perform the same drive control of the first drive means and the second drive means, thereby simplifying the structure of each means.
An object of the present invention is to provide a shake correction device capable of achieving cost reduction.

【図面の簡単な説明】[Brief description of the drawings]

【図１】本発明の実施の一形態に係る振れ補正装置の主
要部の構成部品を分解して示す斜視図である。FIG. 1 is an exploded perspective view showing main components of a shake correction apparatus according to an embodiment of the present invention.

【図２】図１に示す補正移動部（支持枠、摺動ピン、ヨ
ーク及びターゲット部材）と規制部材の関係を表した図
である。FIG. 2 is a diagram illustrating a relationship between a correction moving unit (a support frame, a sliding pin, a yoke, and a target member) illustrated in FIG. 1 and a regulating member.

【図３】図１に示す規制部材と地板の関係を表した図で
ある。FIG. 3 is a diagram illustrating a relationship between a regulating member and a main plate illustrated in FIG. 1;

【図４】振れ検出センサを用いた一般的な防振システム
の概略構成を示す斜視図である。FIG. 4 is a perspective view showing a schematic configuration of a general anti-vibration system using a shake detection sensor.

【図５】従来の実施の一形態に係る振れ補正装置の主要
部の構成部品を分解して示す斜視図である。FIG. 5 is an exploded perspective view showing main components of a shake correction apparatus according to a conventional embodiment.

【図６】図５の左方向から見た図である。FIG. 6 is a view as seen from the left direction in FIG. 5;

【図７】図５の右方向から見た図である。FIG. 7 is a diagram viewed from the right direction in FIG. 5;

【符号の説明】[Explanation of symbols]

Ｌ１ 補正レンズ １ 支持枠 ２ 地板 ３ 規制部材 ４ 第１の弾性部材 ５ 第２の弾性部材 ６ｐ，６ｙ ヨーク ７ｐ，７ｙ 永久磁石 ９ｐ，９ｙ コイルユニット L1 Correction lens 1 Support frame 2 Base plate 3 Restriction member 4 First elastic member 5 Second elastic member 6p, 6y Yoke 7p, 7y Permanent magnet 9p, 9y Coil unit

Claims (6)

【特許請求の範囲】[Claims] 【請求項１】 レンズあるいは撮像素子を支持する支持
枠と、該支持枠に設けられ、該支持枠を第１の方向に移
動させる為に推力を発生させる第１の駆動手段と、前記
支持枠に設けられ、該支持枠を前記第１の方向と直交す
る第２の方向に移動させる為に推力を発生させる第２の
駆動手段と、前記支持枠を第３の方向にのみ移動規制す
る規制部材と、該規制部材を第３の方向と直交する第４
の方向にのみ移動規制する地板とを有する振れ補正装置
において、 前記支持枠と前記規制部材の間に設けられ、前記支持枠
を前記規制部材に対して前記第３の方向の移動量の中立
点に保持する為に前記第３の方向に付勢力を発生する第
１の弾性部材と、前記規制部材と前記地板の間に設けら
れ、前記規制部材を前記地板に対して前記第４の方向の
移動量の中立点に保持する為に前記第４の方向に付勢力
を発生する第２の弾性部材とを有し、 前記第１の弾性部材を、前記第３の方向に略平行でかつ
光軸を通る方向に弾性力が働くように前記光軸に対して
対称な位置に２ヶ所配置し、前記第２の弾性部材を、前
記第４の方向に略平行でかつ光軸を通る方向に弾性力が
働くように前記光軸に対して対称な位置に２ヶ所配置す
ることを特徴とする振れ補正装置。1. A support frame for supporting a lens or an image sensor, a first drive unit provided on the support frame and generating a thrust to move the support frame in a first direction, and the support frame. A second driving means for generating thrust for moving the support frame in a second direction orthogonal to the first direction, and a restriction for restricting movement of the support frame only in a third direction. A member and a fourth member orthogonal to the third direction.
A shake correction device having a ground plane that restricts movement only in the direction of: a neutral point provided between the support frame and the restriction member, the support frame moving the support frame relative to the restriction member in the third direction. A first elastic member that generates an urging force in the third direction to hold the first member and the regulating member, and the regulating member is disposed between the first member and the main plate in the fourth direction with respect to the main plate. A second elastic member for generating a biasing force in the fourth direction to hold the moving amount at a neutral point, wherein the first elastic member is substantially parallel to the third direction and light Two positions are symmetrically arranged with respect to the optical axis so that an elastic force acts in a direction passing through the axis, and the second elastic member is moved in a direction substantially parallel to the fourth direction and passing through the optical axis. Wherein two positions are arranged at positions symmetrical with respect to the optical axis so that elastic force acts. Correction device. 【請求項２】 前記第３の方向は、前記第１の方向に対
して所定角度傾いていることを特徴とする請求項１に記
載の振れ補正装置。2. The apparatus according to claim 1, wherein the third direction is inclined at a predetermined angle with respect to the first direction. 【請求項３】 前記所定角度とは、４５°であることを
特徴とする請求項２記載の振れ補正装置。3. The shake correction apparatus according to claim 2, wherein the predetermined angle is 45 °. 【請求項４】 前記第１及び第２の弾性部材は、圧縮ば
ねであることを特徴とする請求項１〜３の何れかに記載
の振れ補正装置。4. The shake correction device according to claim 1, wherein the first and second elastic members are compression springs. 【請求項５】 前記第１及び第２の弾性部材は、引張り
ばねであることを特徴とする請求項１〜３の何れかにに
記載の振れ補正装置。5. The shake correction device according to claim 1, wherein the first and second elastic members are tension springs. 【請求項６】 前記第１及び第２の弾性部材は、板ばね
であることを特徴とする請求項１〜３の何れかにに記載
の振れ補正装置。6. The shake correction device according to claim 1, wherein the first and second elastic members are leaf springs.