JPH1115037A - Camera shake correcting mechanism for optical device - Google Patents
Camera shake correcting mechanism for optical deviceInfo
- Publication number
- JPH1115037A JPH1115037A JP16997097A JP16997097A JPH1115037A JP H1115037 A JPH1115037 A JP H1115037A JP 16997097 A JP16997097 A JP 16997097A JP 16997097 A JP16997097 A JP 16997097A JP H1115037 A JPH1115037 A JP H1115037A
- Authority
- JP
- Japan
- Prior art keywords
- air
- camera shake
- correction
- optical
- core
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Adjustment Of Camera Lenses (AREA)
Abstract
Description
【０００１】[0001]
【技術分野】本発明は、光学装置の手振れ補正機構に関
する。The present invention relates to a camera shake correction mechanism for an optical device.
【０００２】[0002]
【従来技術及びその問題点】カメラや双眼鏡を使用する
ときには、手振れによる撮影や観察の失敗が起こりやす
い。こうした手振れを補正する手段としては、特開平５
- ２９７４４３号のように、光学系内に設けた可動の補
正レンズを、磁界を生成する複数の永久磁石と該磁界中
の空芯コイルとを用いて電磁誘導で駆動制御するタイプ
がある。このタイプは光軸と直交する平面内で互いに直
交する２方向へ補正レンズを動かすため、補正レンズの
周囲で生成した磁界内に２つの扁平空芯コイルを配して
いる。コイルに作用する磁束を生成する永久磁石は、そ
れぞれのコイルの導線部分に対向して複数が配置されて
閉磁気回路を形成するが、永久磁石の磁束を有効に利用
するには、複数の磁石の間隔が広くなるように、扁平空
芯コイルの空芯部（空芯空間）を広く取ることが好まし
い。しかし従来はこの空芯部が空きスペースとされてい
たために、手振れ補正機構の正面投影面積が大きくなり
がちで、光学装置の小型化の妨げになっていた。2. Description of the Related Art When using a camera or binoculars, camera shake or observation failure due to camera shake is likely to occur. As means for correcting such camera shake, Japanese Patent Application Laid-Open
As described in JP-A-297443, there is a type in which a movable correction lens provided in an optical system is driven and controlled by electromagnetic induction using a plurality of permanent magnets for generating a magnetic field and an air-core coil in the magnetic field. In this type, two flat air-core coils are arranged in a magnetic field generated around the correction lens to move the correction lens in two directions orthogonal to each other in a plane orthogonal to the optical axis. A plurality of permanent magnets that generate magnetic flux acting on the coils are arranged opposite to the conductors of the respective coils to form a closed magnetic circuit. It is preferable to make the air core portion (air core space) of the flat air core coil wider so that the distance between the air cores becomes wider. However, conventionally, since the air core portion is a free space, the front projection area of the camera shake correction mechanism tends to be large, which hinders miniaturization of the optical device.
【０００３】[0003]
【発明の目的】本発明は、正面投影面積が小さく、光学
装置の小型化に寄与する手振れ補正機構を提供すること
を目的とする。SUMMARY OF THE INVENTION An object of the present invention is to provide a camera-shake correction mechanism having a small front projection area and contributing to miniaturization of an optical device.
【０００４】[0004]
【発明の概要】本発明は、光軸と直交する平面と平行に
移動可能に支持された移動枠と、この移動枠に光軸上に
位置させて支持された補正レンズと、磁界生成手段と、
この磁界生成手段が生成する磁界中で上記移動枠と相対
固定され、通電により発生する推力で上記補正レンズを
駆動させる空芯コイルとを備えた光学装置の手振れ補正
機構において、上記空芯コイルの空芯部を補正レンズの
光路上に位置させたことを特徴とする。この構成によれ
ば、従来利用されていなかった空芯コイルの空芯空間が
光学系の光路として利用されるので、スペース効率が向
上し、補正機構の正面投影面積を小さくできる。また、
空芯空間が十分に大きく取られるので、空芯コイルに対
向させて設けられる磁界生成用の磁石を互いに離して置
き、磁束を有効に利用することができる。SUMMARY OF THE INVENTION The present invention provides a moving frame supported movably in parallel with a plane orthogonal to the optical axis, a correction lens supported on the moving frame on the optical axis, magnetic field generating means, ,
An image stabilization mechanism for an optical device, comprising: an air core coil that is relatively fixed to the moving frame in a magnetic field generated by the magnetic field generation means and drives the correction lens by a thrust generated by energization. The air core is located on the optical path of the correction lens. According to this configuration, the air core space of the air core coil, which has not been conventionally used, is used as the optical path of the optical system, so that the space efficiency is improved and the front projection area of the correction mechanism can be reduced. Also,
Since the air core space is sufficiently large, the magnets for generating the magnetic field, which are provided to face the air core coil, are separated from each other, and the magnetic flux can be used effectively.
【０００５】双眼鏡のように光学装置が左右に一対の光
軸を有するとき、上記移動枠は該一対の光軸上にそれぞ
れ左右一対の補正レンズを位置させて一体に支持してお
り、空芯コイルは、左右の補正レンズに共通で、両補正
レンズの光路上に単一の空芯部を位置させるための横長
形状をなすことが望ましい。つまり、複数光軸であって
も個別に補正レンズの駆動機構を設けるのではなく、共
通の空芯コイルを用いて一体に駆動させるため、駆動機
構の構成を簡単にできる。When the optical device has a pair of left and right optical axes such as binoculars, the moving frame has a pair of left and right correction lenses positioned on the pair of optical axes and is integrally supported. The coil is preferably common to the left and right correction lenses, and has a horizontally long shape for positioning a single air core on the optical path of both correction lenses. In other words, even if there are a plurality of optical axes, a drive mechanism for the correction lens is not provided individually, but the drive mechanism is driven integrally using a common air-core coil, so that the configuration of the drive mechanism can be simplified.
【０００６】また、上記移動枠を光軸と直交する平面内
で互いに直交する２方向へ直進移動可能に支持された２
方向直進移動枠とし、この２方向直進移動枠の移動方向
と平行な推力軸をそれぞれ有する一対の空芯コイルが、
その空芯部を補正レンズの光路上に位置させて２方向直
進移動枠の前後位置にそれぞれ設けられることが望まし
い。この構成により、上下方向及び左右方向など２方向
に手振れ補正を行う場合でも、手振れ補正機構をコンパ
クトに構成できる。また、一対の空芯コイルを補正レン
ズの前後位置に離して配置することで、各コイルに作用
する磁界相互の干渉を避けることができる。Further, the movable frame is supported so as to be able to move straight in two directions perpendicular to each other in a plane perpendicular to the optical axis.
A pair of air-core coils each having a thrust axis parallel to the moving direction of the two-way linear moving frame,
It is desirable that the air core portions be located on the optical path of the correction lens and provided at the front and rear positions of the two-way rectilinear moving frame, respectively. With this configuration, the camera shake correction mechanism can be made compact even when camera shake correction is performed in two directions such as the vertical direction and the horizontal direction. Further, by arranging the pair of air-core coils apart from each other at the front and rear positions of the correction lens, it is possible to avoid interference between magnetic fields acting on each coil.
【０００７】光学装置は左右に一対の光軸を有するとき
は、上記移動枠を、左右の光軸の中間で該光軸と平行な
回動軸を中心に、左右の光軸上に位置させた左右一対の
補正レンズを揺動させる揺動部材とし、一対の空芯コイ
ルを、その空芯部を左右の補正レンズの光路上に位置さ
せて揺動部材上に設けることで手振れ補正機構を構成す
ることも可能である。When the optical device has a pair of optical axes on the left and right, the moving frame is positioned on the left and right optical axes around a rotation axis parallel to the optical axis in the middle of the left and right optical axes. A swinging member for swinging the pair of left and right correction lenses, and a pair of air-core coils are provided on the swinging member with their air-core portions positioned on the optical path of the left and right correction lenses to provide a camera shake correction mechanism. It is also possible to configure.
【０００８】以上の構成において、磁界生成手段は空芯
コイルを挟んだ光軸方向の前後位置に設けられることが
好ましい。これにより、磁界生成手段の補正レンズの径
方向への突出が抑えられるので、手振れ補正機構の小型
化に寄与する。In the above configuration, it is preferable that the magnetic field generating means is provided at the front and rear positions in the optical axis direction with the air-core coil interposed therebetween. As a result, the radial projection of the correction lens of the magnetic field generation means is suppressed, which contributes to the miniaturization of the camera shake correction mechanism.
【０００９】[0009]
【発明の実施の形態】図１から図３に示す手振れ補正ユ
ニット１０は、カメラの手振れ補正機構であり、光軸上
に補正レンズ１２を位置させるように設置された補正レ
ンズ枠１１を有している。各図においてｘ軸及びｙ軸
は、補正レンズ１２の光軸Ｏと直交する平面内において
互いに直交する２つの軸であり、ｘ軸はカメラ本体の左
右方向、ｙ軸は上下方向に一致する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A camera shake correction unit 10 shown in FIGS. 1 to 3 is a camera shake correction mechanism, and has a correction lens frame 11 installed so that a correction lens 12 is positioned on an optical axis. ing. In each drawing, the x-axis and the y-axis are two axes orthogonal to each other in a plane orthogonal to the optical axis O of the correction lens 12, the x-axis coincides with the left-right direction of the camera body, and the y-axis coincides with the up-down direction.
【００１０】補正レンズ枠１１の外周には、光軸Ｏと直
交する平面内で移動支持枠１１ａが延設されている。補
正レンズ枠１１はまた、この移動支持枠１１ａの前後
に、該移動支持枠１１ａと平行な前側フランジ１１ｂと
後側フランジ１１ｃを有している。上記補正レンズ１２
は、光軸方向には移動支持枠１１ａの内側に保持されて
いる。移動支持枠１１ａは、その上側及び下側辺部の内
部に、ｘ方向に平行に延びる一対のｘ貫通孔１３を有し
ている。この一対のｘ貫通孔１３には、ロ字形をなすガ
イド枠１５のうち平行をなす一対のｘシャフト１５ａが
摺動自在に支持されている。一方、カメラ本体には一対
の固定支持部材１６が形成されており、各支持部材１６
の内部には上記ｘ貫通孔１３と直交してｙ方向に延びる
ｙ貫通孔１６ａが形成されている。ｙ貫通孔１６ａ内に
は、上記ガイド枠１５を構成する、上記一対のｘシャフ
ト１５ａに直交する一対のｙシャフト１５ｂがそれぞれ
摺動自在に支持されている。従って補正レンズ枠１１
は、ｘシャフト１５ａとｘ貫通孔１３の関係によりｘ方
向へ移動可能で、ｙシャフト１５ｂとｙ貫通孔１６ａの
関係によりｙ方向へ移動可能であり、補正レンズ枠１１
がｘまたはｙ方向に駆動されると、これに保持される補
正レンズ１２が一体に動く。なお、補正レンズ枠１１の
移動が手振れ補正ユニット１０の自重で生じないよう
に、ガイド枠１５と各貫通孔（ｘ貫通孔１３、ｙ貫通孔
１６ａ）の摺接部分には、手振れ補正時に補正レンズ枠
１１の駆動を妨げない程度で一定のフリクションが与え
られている。また補正レンズ枠１１の自重による移動を
抑え、かつ非駆動時に所定の中立位置に保持させるため
には、ガイド枠１５と補正レンズ枠１１の間、及びガイ
ド枠１５と固定支持部材１６の間に、ｘ及びｙ方向で補
正レンズ枠１１の位置を一定に保持するばね部材を配し
てもよい。On the outer periphery of the correction lens frame 11, a movable support frame 11a extends in a plane perpendicular to the optical axis O. The correction lens frame 11 also has a front flange 11b and a rear flange 11c parallel to the movable support frame 11a before and after the movable support frame 11a. Correction lens 12
Is held inside the movable support frame 11a in the optical axis direction. The movable support frame 11a has a pair of x through holes 13 extending parallel to the x direction inside the upper and lower sides. A pair of parallel x-shafts 15a of a rectangular guide frame 15 are slidably supported in the pair of x-through holes 13. On the other hand, a pair of fixed support members 16 are formed on the camera body, and each support member 16
Is formed with a y through hole 16a extending in the y direction orthogonal to the x through hole 13. A pair of y-shafts 15b, which constitute the guide frame 15 and are orthogonal to the pair of x-shafts 15a, are slidably supported in the y-through holes 16a. Therefore, the correction lens frame 11
Can move in the x direction due to the relationship between the x shaft 15a and the x through hole 13 and can move in the y direction due to the relationship between the y shaft 15b and the y through hole 16a.
Is driven in the x or y direction, the correction lens 12 held thereby moves together. In order to prevent the movement of the correction lens frame 11 from occurring due to the weight of the camera shake correction unit 10, the sliding contact between the guide frame 15 and each of the through holes (x through hole 13, y through hole 16a) is corrected at the time of camera shake correction. A certain amount of friction is given to the extent that the driving of the lens frame 11 is not hindered. In addition, in order to suppress the movement of the correction lens frame 11 due to its own weight and to keep the correction lens frame 11 at a predetermined neutral position when not driven, between the guide frame 15 and the correction lens frame 11 and between the guide frame 15 and the fixed support member 16. A spring member for keeping the position of the correction lens frame 11 constant in the x, y and y directions may be provided.
【００１１】この補正レンズ枠１１の前側フランジ１１
ｂの前部には、第１固定ヨーク板１８がカメラ内に固定
されている。また、前側フランジ１１ｂと移動支持枠１
１ａに挟まれる位置には、第２固定ヨーク板１９が固定
されている。磁性材料からなる第１固定ヨーク板１８及
び第２固定ヨーク板１９は、いずれも上記補正レンズ１
２の光路を確保するために中央部に開口を有している。
なお、図１では第１固定ヨーク板１８を透視した状態で
補正レンズ枠１１を示している。The front flange 11 of the correction lens frame 11
A first fixed yoke plate 18 is fixed in the camera at the front of b. Further, the front flange 11b and the movable support frame 1
A second fixed yoke plate 19 is fixed at a position sandwiched by 1a. Both the first fixed yoke plate 18 and the second fixed yoke plate 19 made of a magnetic material
An opening is provided at the center to secure the two optical paths.
FIG. 1 shows the correction lens frame 11 in a state where the first fixed yoke plate 18 is seen through.
【００１２】補正レンズ枠１１の前側フランジ１１ｂの
前面には、ｙ駆動用空芯コイル２０が固着されている。
ｙ駆動用空芯コイル２０は、前側フランジ１１ｂ前面の
外周形状に沿って枠状に導線が巻回された扁平空芯コイ
ルであり、その空芯部２０ａは、光軸Ｏと平行な方向か
ら見ると補正レンズ１２の径方向断面より広くなってお
り、この空芯部２０ａの内側に補正レンズ１２が位置す
るように配置されている（図１）。つまり、ｙ駆動用空
芯コイル２０の空芯部２０ａは、補正レンズ１２に入射
する光束の光路となっている。上記第１固定ヨーク板１
８には、この枠状のｙ駆動用空芯コイル２０のうちｘ方
向に延びる一対の平行導線部に対向させて、一対のｙ駆
動用固定磁石２１ａ、２１ｂが固着されている。An air core coil 20 for y drive is fixed to the front surface of the front flange 11b of the correction lens frame 11.
The y-drive air-core coil 20 is a flat air-core coil in which a conducting wire is wound in a frame shape along the outer peripheral shape of the front surface of the front flange 11b, and the air-core portion 20a is viewed from a direction parallel to the optical axis O. When viewed, it is wider than the radial cross section of the correction lens 12, and the correction lens 12 is disposed so as to be located inside the air core portion 20a (FIG. 1). That is, the air core portion 20 a of the y-drive air core coil 20 is an optical path of a light beam incident on the correction lens 12. The first fixed yoke plate 1
8, a pair of fixed y-drive magnets 21a and 21b are fixed to the pair of frame-shaped y-drive air-core coils 20 so as to face a pair of parallel conductors extending in the x-direction.
【００１３】ｙ駆動用固定磁石２１ａ、２１ｂは、ｙ駆
動用空芯コイル２０の厚み方向（光軸方向）に着磁され
た永久磁石であり、この一対の磁石２１ａ、２１ｂと上
記固定ヨーク板１８、１９とによって図３に矢印αで示
す閉磁気回路が形成される。この磁気回路の磁束は、ｙ
駆動用空芯コイル２０の導線部の一対の平行部分に垂直
に鎖交しているため、該コイル２０に通電すると磁束及
び電流に直交する方向への推力が発生する。すなわち、
図１の矢印Ａ方向へ電流を流すと同図の上方向へ、矢印
Ｂ方向へ電流を流すと下方向への推力が、ｙ駆動用空芯
コイル２０に作用する。コイル２０は補正レンズ枠１１
に固定されており、補正レンズ枠１１は上記ガイド枠１
５と固定支持部材１６を介して図１のｙ方向に案内され
ているから、ｙ駆動用空芯コイル２０への通電により発
生した推力は補正レンズ枠１１をｙ方向に移動させる。
つまり、ｙ駆動用空芯コイル２０の通電方向を変化させ
ると補正レンズ１２を上下方向で正逆に駆動させること
ができる。補正レンズ１２をｙ方向に駆動させる推力
は、ｙ駆動用空芯コイル２０に流す電流に比例してい
る。The y-drive fixed magnets 21a and 21b are permanent magnets magnetized in the thickness direction (optical axis direction) of the y-drive air core coil 20, and the pair of magnets 21a and 21b and the fixed yoke plate are used. 18 and 19 form a closed magnetic circuit indicated by an arrow α in FIG. The magnetic flux of this magnetic circuit is y
Since the drive air core coil 20 is vertically linked to a pair of parallel portions of the conductive wire portion, when the coil 20 is energized, a thrust is generated in a direction orthogonal to the magnetic flux and the current. That is,
When a current is applied in the direction of arrow A in FIG. 1, a thrust is applied to the y-drive air-core coil 20 in an upward direction when a current is applied in the same direction as shown in FIG. The coil 20 is the correction lens frame 11
The correction lens frame 11 is fixed to the guide frame 1
1 is guided in the y-direction of FIG. 1 via the fixed support member 5 and the fixed support member 16, the thrust generated by energizing the y-drive air core coil 20 moves the correction lens frame 11 in the y-direction.
That is, when the energizing direction of the air core coil 20 for y drive is changed, the correction lens 12 can be driven up and down in the forward and reverse directions. The thrust for driving the correction lens 12 in the y direction is proportional to the current flowing through the y-drive air core coil 20.
【００１４】一方、補正レンズ枠１１の移動支持枠１１
ａと後側フランジ１１ｃに挟まれる位置には、第３固定
ヨーク部材２２が固定され、後側フランジ１１ｃの後部
には第４固定ヨーク部材２３が固定されている。第３固
定ヨーク部材２２及び第４固定ヨーク部材２３は、いず
れも上記補正レンズ１２の光路を確保するために中央部
に開口を有している。On the other hand, the moving support frame 11 of the correction lens frame 11
The third fixed yoke member 22 is fixed at a position sandwiched by the rear flange 11c and the fourth fixed yoke member 23 at the rear of the rear flange 11c. Each of the third fixed yoke member 22 and the fourth fixed yoke member 23 has an opening at the center to secure the optical path of the correction lens 12.
【００１５】移動支持枠１１ａの後面には、ｘ駆動用空
芯コイル２４が固着されている。ｘ駆動用空芯コイル２
４は、ｙ駆動用空芯コイル２０と略同一形状をなす扁平
空芯コイルであり、その空芯部２４ａは補正レンズ１２
の径方向断面より広く、この空芯部２４ａの内側に補正
レンズ１２が位置するように設置されている。つまり空
芯部２４ａが補正レンズ１２から出射する光束の光路と
なっている。上記第４固定ヨーク部材２３には、ｘ駆動
用空芯コイル２４のうちｘ方向に延びる一対の平行導線
部に対向させて、一対のｘ駆動用固定磁石２５ａ、２５
ｂが固着されている。An x-drive air core coil 24 is fixed to the rear surface of the movable support frame 11a. x drive air core coil 2
Reference numeral 4 denotes a flat air-core coil having substantially the same shape as the y-drive air-core coil 20, and the air-core portion 24a is
The correction lens 12 is installed so as to be wider than the radial cross section of the correction lens 12 and located inside the air core portion 24a. That is, the air core portion 24a is an optical path of a light beam emitted from the correction lens 12. The fourth fixed yoke member 23 is opposed to a pair of parallel conductive wire portions extending in the x direction of the x drive air core coil 24, and is provided with a pair of x drive fixed magnets 25 a and 25.
b is fixed.
【００１６】ｙ駆動用固定磁石２１ａ、２１ｂと同様
に、ｘ駆動用固定磁石２５ａ、２５ｂもｘ駆動用空芯コ
イル２４の厚み方向（光軸方向）に着磁された永久磁石
であり、この一対の磁石２１ａ、２１ｂと固定ヨーク部
材２２、２３とによって図２に矢印βで示す閉磁気回路
が形成される。この磁気回路の磁束はｘ駆動用空芯コイ
ル２４の一対の平行導線部に垂直に鎖交しており、コイ
ル２４に電流を流すと磁束及び電流に直交する方向への
推力が発生する。すなわち、図１の矢印Ｃ方向へ電流を
流すと同図の左方向へ、矢印Ｄ方向へ電流を流すと右方
向への推力が、ｘ駆動用空芯コイル２４に作用する。コ
イル２４は補正レンズ枠１１に固定されており、補正レ
ンズ枠１１は上記ガイド枠１５と移動支持枠１１ａ（ｘ
貫通孔１３）を介してｘ方向に移動可能に支持されてい
るから、ｘ駆動用空芯コイル２４への通電により発生し
た推力は補正レンズ枠１１をｘ方向に移動させる。つま
り、ｘ駆動用空芯コイル２４の通電方向を変化させると
補正レンズ１２を左右方向に正逆に移動させることがで
きる。この左右方向の推力は、ｘ駆動用空芯コイル２４
に流す電流に比例している。以上において、ｙ駆動用空
芯コイル２０及びｘ駆動用空芯コイル２４に通電しない
状態では、それぞれの空芯部２０ａ、２４ａの空芯中心
は補正レンズ１２を通る光軸Ｏに一致する。Like the y-drive fixed magnets 21a and 21b, the x-drive fixed magnets 25a and 25b are also permanent magnets magnetized in the thickness direction (optical axis direction) of the x-drive air core coil 24. The pair of magnets 21a and 21b and the fixed yoke members 22 and 23 form a closed magnetic circuit indicated by an arrow β in FIG. The magnetic flux of this magnetic circuit is vertically linked to the pair of parallel conductors of the x-drive air core coil 24. When a current flows through the coil 24, a thrust is generated in a direction perpendicular to the magnetic flux and the current. That is, when a current flows in the direction of arrow C in FIG. 1, a thrust in the left direction in the drawing, and when a current flows in the direction of arrow D, a thrust in the right direction acts on the x-drive air core coil 24. The coil 24 is fixed to the correction lens frame 11, and the correction lens frame 11 includes the guide frame 15 and the movable support frame 11a (x
Since it is movably supported in the x-direction through the through-hole 13), the thrust generated by energizing the x-driving air core coil 24 moves the correction lens frame 11 in the x-direction. That is, when the energizing direction of the x-drive air core coil 24 is changed, the correction lens 12 can be moved right and left in the forward and reverse directions. The thrust in the left-right direction is determined by the x-drive air-core coil 24.
Is proportional to the current flowing through In the above, when the y-drive air-core coil 20 and the x-drive air-core coil 24 are not energized, the air-core centers of the respective air-core portions 20a and 24a coincide with the optical axis O passing through the correction lens 12.
【００１７】カメラ内にはさらに、ｙ位置検出センサ２
６とｘ位置検出センサ２７が補正レンズ枠１１の前方に
設置されている。このｙ位置検出センサ２６とｘ位置検
出センサ２７はそれぞれ公知の受光素子と発光素子から
なり、補正レンズ枠１１に穿設したスリット（不図示）
の位置を検出して、補正レンズ枠１１のｘ及びｙ方向で
の移動位置を検出することができる。The camera further includes a y-position detection sensor 2
6 and the x position detection sensor 27 are installed in front of the correction lens frame 11. The y-position detection sensor 26 and the x-position detection sensor 27 each include a known light-receiving element and a known light-emitting element, and a slit (not shown) formed in the correction lens frame 11.
Is detected, the movement position of the correction lens frame 11 in the x and y directions can be detected.
【００１８】この手振れ補正ユニット１０に関する電気
回路を図４に示した。カメラ内には、この電気回路が上
下方向用と左右方向用に１系統ずつ、計２系統設けられ
ている。例えば上下方向での手振れ補正では、使用者が
カメラを把持する際に生じた上下方向の手振れは、ジャ
イロセンサ２８で光軸のｙ方向の振れ速度として検出さ
れ、さらに積分器２９で積分されて振れ角度出力とな
る。一方、ｙ位置検出センサ２６で検出される補正レン
ズ１２のｙ方向の位置出力は、誤差増幅器３０において
上記振れ角度出力と比較増幅されてから電力増幅器３１
で増幅される。そして補正レンズ１２の位置出力と振れ
角度出力の間の誤差が減る（ゼロになる）方向へ補正レ
ンズ１２を駆動させるようにｙ駆動用空芯コイル２０に
コイル電流が流れる。これにより補正レンズ１２がｙ方
向に駆動されて上下方向の手振れ補正が行われる。微分
器３２はレンズ駆動を安定させる役割を有する。FIG. 4 shows an electric circuit relating to the camera shake correction unit 10. As shown in FIG. Two electric circuits are provided in the camera, one for the vertical direction and one for the left and right directions. For example, in the vertical camera shake correction, the vertical camera shake generated when the user holds the camera is detected by the gyro sensor 28 as the shake speed of the optical axis in the y direction, and further integrated by the integrator 29. It becomes the shake angle output. On the other hand, the position output in the y direction of the correction lens 12 detected by the y position detection sensor 26 is compared with the shake angle output by the error amplifier 30 and then amplified by the power amplifier 31.
Amplified by Then, a coil current flows through the y-drive air core coil 20 so as to drive the correction lens 12 in a direction in which the error between the position output of the correction lens 12 and the shake angle output decreases (becomes zero). As a result, the correction lens 12 is driven in the y direction, and vertical camera shake correction is performed. The differentiator 32 has a role to stabilize lens driving.
【００１９】左右方向の手振れ発生時にも同様に、ジャ
イロセンサから得られる左右方向の手振れの大きさ及び
方向に応じて、ｘ位置検出センサ２７で補正レンズ１２
のｘ方向での位置を検出しながらｘ駆動用空芯コイル２
４へ通電制御を行い、ｘ方向の手振れを解消する方向に
補正レンズ１２を駆動させる。これにより左右方向の手
振れ補正が行われる。Similarly, when the camera shake occurs in the horizontal direction, the x-position detection sensor 27 uses the correction lens 12 in accordance with the magnitude and direction of the camera shake in the horizontal direction obtained from the gyro sensor.
While detecting the position in the x-direction, the x-drive air-core coil 2
4 to control the correction lens 12 in a direction in which the camera shake in the x direction is eliminated. Thereby, the camera shake correction in the left-right direction is performed.
【００２０】以上の構造から、ｙ駆動用空芯コイル２０
及びｘ駆動用空芯コイル２４のコイル電流の通電方向を
制御することにより、補正レンズ１２を光軸Ｏと直交す
る平面内で移動させて手振れを補正することができる。
補正レンズ駆動用の一対の空芯コイル２０、２４は、そ
の空芯部２０ａ、２４ａを補正レンズ１２の光路として
利用しているのでスペース効率がよい。加えて磁界を生
成する永久磁石とヨーク板も、この空芯コイルの前後に
配されている。従って、手振れ補正ユニット１０の正面
投影面積が小さく抑えられている。この構成であれば空
芯コイルの空芯部を広く取ることができるので、コイル
に対向する永久磁石の設置間隔を離して磁束の有効利用
を図ることができる。なお本実施形態では、補正レンズ
１２が駆動されたときに固定ヨークや永久磁石が光路に
干渉しないように、空芯コイル２０、２４の空芯部２０
ａ、２４ａは、その駆動分を見込んで補正レンズ１２の
径サイズよりも広く形成されている。From the above structure, the y-drive air core coil 20
By controlling the direction in which the coil current of the x-drive air-core coil 24 is supplied, the correction lens 12 can be moved in a plane perpendicular to the optical axis O to correct camera shake.
The pair of air-core coils 20 and 24 for driving the correction lens uses the air-core portions 20 a and 24 a as the optical path of the correction lens 12, so that the space efficiency is high. In addition, a permanent magnet for generating a magnetic field and a yoke plate are arranged before and after the air-core coil. Therefore, the front projection area of the camera shake correction unit 10 is kept small. With this configuration, the air-core portion of the air-core coil can be widened, so that the permanent magnets facing the coil are spaced apart from each other so that the magnetic flux can be effectively used. In the present embodiment, the air core portions 20 of the air core coils 20 and 24 are arranged so that the fixed yoke and the permanent magnet do not interfere with the optical path when the correction lens 12 is driven.
a and 24a are formed wider than the diameter size of the correction lens 12 in consideration of the driving amount.
【００２１】手振れ補正ユニット１０では、補正レンズ
１２の周縁に移動支持枠１１ａやガイド枠１５からなる
駆動支持機構を設け、この駆動支持機構の前後位置に上
下方向補正用と左右方向補正用の電磁駆動機構を配して
いる。この配置であると両電磁駆動機構を光路上に置き
つつ、上下方向用と左右方向用の磁界生成手段が互いに
離れて置かれるためそれぞれの磁界が相互に干渉しにく
い。そして補正ユニット１０を光軸方向にもコンパクト
に構成できる。In the camera shake correction unit 10, a drive support mechanism including a movable support frame 11a and a guide frame 15 is provided on the periphery of the correction lens 12, and electromagnetic waves for vertical and horizontal correction are provided at front and rear positions of the drive support mechanism. A drive mechanism is provided. With this arrangement, the magnetic field generating means for the vertical direction and the magnetic field generating means for the horizontal direction are placed apart from each other while both electromagnetic drive mechanisms are placed on the optical path, so that the respective magnetic fields hardly interfere with each other. Then, the correction unit 10 can be made compact also in the optical axis direction.
【００２２】上記実施形態は単光軸のカメラに関するも
のであるが、本発明は双眼鏡のように複数の光軸を有す
る光学装置にも有効である。例えば双眼鏡の場合、上記
の手振れ補正ユニット１０を２つ並列に配置して、左右
一対の光学系に対して個別に手振れ補正を行うことが可
能である。しかし、手振れは一対の光学系を内蔵する双
眼鏡の鏡体の動作によって生じるものであり、その補正
方向は左右の光軸とも同じである。よって同一の方向に
作動する補正機構を２つ設けるのでは、スペースや部品
に無駄があり、重量的にも不利である。Although the above embodiment relates to a camera having a single optical axis, the present invention is also effective for an optical device having a plurality of optical axes such as binoculars. For example, in the case of binoculars, it is possible to arrange two camera shake correction units 10 in parallel and perform camera shake correction individually for a pair of left and right optical systems. However, camera shake is caused by the operation of the mirror body of the binoculars having a pair of optical systems, and the correction direction is the same for the left and right optical axes. Therefore, providing two correction mechanisms that operate in the same direction wastes space and parts, and is disadvantageous in weight.
【００２３】そこで、構造が簡単でスペース効率に優れ
る、双眼鏡用の手振れ補正機構の実施形態を図５に示
す。この手振れ補正ユニット４０は、上記補正レンズ枠
１１に比して横長の補正レンズ枠４１に、左右一対の補
正レンズ４２、４３が左右の光軸Ｏ上に保持されてい
る。図５においてｘ軸及びｙ軸は、左右の光軸Ｏと直交
する平面内において互いに直交する２つの軸であり、ｘ
軸は双眼鏡の左右方向、ｙ軸は上下方向に一致する。補
正レンズ枠４１は、横長ロ字形のガイド枠４４を介し
て、上記ｘ方向及びｙ方向へ移動可能に支持されてい
る。補正レンズ枠４１の前面には横長のｙ駆動用空芯コ
イル４５が固着されており、その空芯部４５ａは、左右
の補正レンズ４２、４３に入射する光束を通す開口とな
っている。このｙ駆動用空芯コイル４５を挟む前後には
図示しない一対の固定ヨークが設置されており、このう
ち前側の固定ヨークには、ｙ駆動用空芯コイル４５のう
ちｘ方向に延びる一対の平行導線部（長辺部）に対向さ
せて、一対のｙ駆動用固定磁石４６が固定されている。
一方、補正レンズ枠４１の後面には、補正レンズ４２、
４３両方からの射出光束を通す空芯部４７ａを有する横
長枠状のｘ駆動用空芯コイル４７が固着され、これを挟
む前後位置に上記とは異なる一対の固定ヨーク（不図
示）が配される。このうち後側の固定ヨークには、ｘ駆
動用空芯コイル４７のｙ方向に延びる一対の平行導線部
（短辺部）に対向する一対のｘ駆動用固定磁石４８が固
定されている。FIG. 5 shows an embodiment of a camera shake correction mechanism for binoculars having a simple structure and excellent space efficiency. In the camera shake correction unit 40, a pair of left and right correction lenses 42 and 43 are held on the left and right optical axes O in a correction lens frame 41 that is longer than the correction lens frame 11. In FIG. 5, the x-axis and the y-axis are two axes orthogonal to each other in a plane orthogonal to the left and right optical axes O.
The axis coincides with the horizontal direction of the binoculars, and the y axis coincides with the vertical direction. The correction lens frame 41 is supported by a horizontally long rectangular guide frame 44 so as to be movable in the x-direction and the y-direction. A horizontally long y-driving air-core coil 45 is fixed to the front surface of the correction lens frame 41, and the air-core portion 45a is an opening through which light beams entering the left and right correction lenses 42 and 43 pass. A pair of fixed yokes (not shown) are provided before and after the y-drive air core coil 45, and a pair of parallel yoke extending in the x direction of the y-drive air core coil 45 is provided on the front fixed yoke. A pair of y-drive fixed magnets 46 are fixed to face the conducting wire portion (long side portion).
On the other hand, on the rear surface of the correction lens frame 41, a correction lens 42,
An x-shaped air-driving coil 47 having a horizontally long frame shape and having an air-core portion 47a through which the emitted light beams from both of them 43 pass is fixed, and a pair of fixed yokes (not shown) different from the above are arranged at front and rear positions sandwiching the coil. You. The fixed yoke on the rear side is fixed with a pair of fixed x-driving magnets 48 facing a pair of parallel conducting wire portions (short sides) of the x-driving air-core coil 47 extending in the y direction.
【００２４】一対のｙ駆動用固定磁石４６は、ｘ駆動用
空芯コイル４５の厚み方向（光軸方向）に着磁されてお
り、その磁束が該コイル４５のｘ方向の平行導線部に略
垂直に鎖交する。一対のｘ駆動用固定磁石４８は、ｘ駆
動用空芯コイル４７の厚み方向（光軸方向）に着磁され
ており、その磁束が該コイル４７のｙ方向の平行導線部
と略垂直に鎖交する。コイル４５、４７に電流を流した
ときに発生する推力の方向は、上記補正レンズ枠４１の
可動方向（ｘ及びｙ方向）と同じである。よって、ジャ
イロセンサ等で検出される手振れの方向と大きさに応じ
て、磁界内に置かれたｙ駆動用空芯コイル４５またはｘ
駆動用空芯コイル４７を通電制御することにより、補正
レンズ枠４１を光軸Ｏと直交する平面内の所望位置へ駆
動させることができる。これにより補正レンズ４２及び
補正レンズ４３が一体に移動されて、左右の光学系で同
時かつ一体に手振れを補正することができる。このよう
に光軸が複数であっても、コイル形状を変化させること
で一つの空芯コイルを各光軸上の補正レンズに共通に用
いることができるので、手振れ補正ユニット４０は構成
が簡単である。そして先の実施形態と同様に、空芯コイ
ルの空芯部を光路上に位置させたためスペース効率が良
く、手振れ補正ユニットの正面投影面積を小さく抑える
ことができる。A pair of y-drive fixed magnets 46 are magnetized in the thickness direction (optical axis direction) of the x-drive air-core coil 45, and the magnetic flux is substantially applied to the x-direction parallel conductor portion of the coil 45. Link vertically. The pair of x-driving fixed magnets 48 are magnetized in the thickness direction (optical axis direction) of the x-driving air-core coil 47, and the magnetic flux is chained substantially perpendicular to the y-direction parallel conductor portion of the coil 47. Intersect. The direction of the thrust generated when a current flows through the coils 45 and 47 is the same as the movable direction (x and y directions) of the correction lens frame 41. Therefore, depending on the direction and magnitude of the camera shake detected by the gyro sensor or the like, the y-drive air core coil 45 or x
By controlling the energization of the driving air-core coil 47, the correction lens frame 41 can be driven to a desired position in a plane orthogonal to the optical axis O. As a result, the correction lens 42 and the correction lens 43 are integrally moved, and the camera shake can be simultaneously and integrally corrected by the left and right optical systems. Even if there are a plurality of optical axes, one air-core coil can be used in common for the correction lenses on each optical axis by changing the coil shape, so that the camera shake correction unit 40 has a simple configuration. is there. Since the air core of the air core coil is located on the optical path as in the previous embodiment, the space efficiency is good and the front projection area of the camera shake correction unit can be reduced.
【００２５】図６及び図７は、双眼鏡の手振れ補正機構
のさらに異なる形態を示す。この手振れ補正ユニット５
０では、正面から見て左側の補正光学系５１は、対物側
から負レンズ５１ａと正レンズ５１ｂの組み合わせから
なり、正面から見て右側の補正光学系５２は負レンズ５
２ａと正レンズ５２ｂの組み合わせから構成されてい
る。揺動アーム５３は、左右の光軸Ｏの中間位置におい
て該光軸と平行な回動軸５４に軸支されており、回動軸
５４を挟んだ一方の板部５３ａに負レンズ５１ａを保持
し、他方の板部５３ｂに正レンズ５２ｂを保持してい
る。負レンズ５１ａを保持する側の板部５３ａの前面に
は空芯コイル５５が固定され、正レンズ５２ａを保持す
る側の板部５３ｂの後面には空芯コイル５６が固定され
ている。空芯コイル５５、５６は、その空芯部５５ａ、
５６ａがそれぞれ補正光学系５１、５２の径方向断面よ
りも広くなるように導線が巻回され、その空芯部５５
ａ、５６ａが補正光学系５１、５２の光路上に位置する
ように設置されている。なお図６及び図７においてｘ軸
及びｙ軸は、光軸Ｏと直交する平面内において互いに直
交する２方向に向いており、ｘ軸は双眼鏡の左右方向、
ｙ軸は上下方向に一致する。FIGS. 6 and 7 show still another embodiment of the camera shake correction mechanism of the binoculars. This camera shake correction unit 5
0, the correction optical system 51 on the left side when viewed from the front side is composed of a combination of a negative lens 51a and a positive lens 51b from the object side, and the correction optical system 52 on the right side when viewed from the front side is a negative lens 5
2a and a positive lens 52b. The swing arm 53 is pivotally supported at an intermediate position between the left and right optical axes O by a rotating shaft 54 parallel to the optical axes, and holds the negative lens 51a on one plate 53a sandwiching the rotating shaft 54. Then, the positive lens 52b is held by the other plate portion 53b. An air core coil 55 is fixed to the front surface of the plate portion 53a on the side holding the negative lens 51a, and an air core coil 56 is fixed to the rear surface of the plate portion 53b on the side holding the positive lens 52a. The air-core coils 55 and 56 have their air-core portions 55a,
The conductor is wound so that 56a is wider than the radial cross section of each of the correction optical systems 51 and 52.
a and 56a are located on the optical paths of the correction optical systems 51 and 52. 6 and 7, the x-axis and the y-axis are oriented in two directions orthogonal to each other in a plane orthogonal to the optical axis O, and the x-axis is the left-right direction of the binoculars.
The y axis coincides with the vertical direction.
【００２６】空芯コイル５５を挟む位置には第１ヨーク
板５７及び第２ヨーク板５８が設けられ、第１ヨーク板
５７には空芯コイル５５のｘ方向の平行導線部に対向す
る一対の永久磁石５９が取り付けられている。一方、空
芯コイル５６を挟む位置には第３ヨーク板６０及び第４
ヨーク板６１が設けられ、第４ヨーク板６１には空芯コ
イル５６のｘ方向の平行導線部に対向する一対の永久磁
石６２が取り付けられている。また揺動アーム５３の前
方には、該揺動アーム５３の回転角度位置を検出する補
正レンズ位置検出センサ６３が設けられる。A first yoke plate 57 and a second yoke plate 58 are provided at positions sandwiching the air core coil 55, and a pair of opposing parallel conductor portions of the air core coil 55 in the x direction are provided on the first yoke plate 57. A permanent magnet 59 is attached. On the other hand, the third yoke plate 60 and the fourth
A yoke plate 61 is provided, and a pair of permanent magnets 62 are attached to the fourth yoke plate 61 so as to oppose the parallel conductive portion of the air-core coil 56 in the x direction. Further, in front of the swing arm 53, a correction lens position detection sensor 63 for detecting the rotation angle position of the swing arm 53 is provided.
【００２７】上記構成の手振れ補正ユニット５０では、
各一対の永久磁石５９及び永久磁石６２の取り付け位置
が平行であるため、空芯コイル５５及び空芯コイル５６
に電流を流したときに発生する推力軸は、共に図６中の
ｙ方向に向いている。例えば、空芯コイル５５と空芯コ
イル５６のそれぞれに図６中の矢印Ｅ方向へ電流を流す
と、負レンズ５１ａ側では図中上方向、正レンズ５２ｂ
側では下方向への推力が発生し、揺動アーム５３が回動
軸５４を中心に時計方向に駆動される。反対に空芯コイ
ル５５と空芯コイル５６のそれぞれに矢印Ｆ方向へ電流
を流すと、逆方向への推力が発生して揺動アーム５３が
反時計方向に駆動される。このように、空芯コイル５
５、５６を通電制御することにより揺動アーム５３を揺
動させ、負レンズ５１ａと正レンズ５２ａを駆動するこ
とができる。揺動アーム５３の揺動は、鏡体に対して若
干の左右方向（ｘ方向）への移動を伴うものの、主とし
て負レンズ５１ａと正レンズ５２ａを上下方向（ｙ方
向）に移動させる。つまり揺動アーム１８を駆動するこ
とによって、上下方向の手振れを補正することができ
る。なお、左右の補正レンズが回動軸５４を中心に同方
向へ回動するときには、左右の補正レンズは互いに逆方
向に向かうから、補正レンズ系５１では負レンズ５１
ａ、補正レンズ系５２では正レンズ５２ｂという符号が
反対のレンズを駆動することで左右の光軸を上あるいは
下のいずれか同方向に補正している。この実施形態でも
空芯コイル５５、５６の空芯部５５ａ、５６ａを光路上
に位置させたのでスペース効率がよく、手振れ補正機構
の正面投影面積を小さく抑えることができる。In the camera shake correction unit 50 having the above configuration,
Since the mounting positions of the pair of permanent magnets 59 and 62 are parallel, the air-core coil 55 and the air-core coil 56
The thrust axes generated when a current is applied to both of them are oriented in the y direction in FIG. For example, when a current is applied to each of the air-core coil 55 and the air-core coil 56 in the direction of arrow E in FIG.
On the side, a downward thrust is generated, and the swing arm 53 is driven clockwise about the rotation shaft 54. Conversely, when a current is applied to each of the air-core coil 55 and the air-core coil 56 in the direction of arrow F, a thrust is generated in the opposite direction, and the swing arm 53 is driven counterclockwise. Thus, the air-core coil 5
By controlling the energization of 5, 56, the swing arm 53 is swung to drive the negative lens 51a and the positive lens 52a. Although the swing of the swing arm 53 involves a slight movement in the left-right direction (x direction) with respect to the mirror body, the swing arm 53 mainly moves the negative lens 51a and the positive lens 52a in the vertical direction (y direction). That is, by driving the swing arm 18, it is possible to correct the vertical camera shake. Note that when the left and right correction lenses rotate in the same direction about the rotation shaft 54, the left and right correction lenses go in opposite directions to each other.
a, in the correction lens system 52, the left and right optical axes are corrected in the same direction, either upward or downward, by driving a lens having the opposite sign of the positive lens 52b. Also in this embodiment, since the air core portions 55a, 56a of the air core coils 55, 56 are located on the optical path, space efficiency is good, and the front projection area of the camera shake correction mechanism can be reduced.
【００２８】本発明は、上記実施形態に限定されるもの
ではない。例えば、第１の実施形態及び第２の実施形態
では、補正レンズの前側の光路上に上下方向用、後側の
光路上に左右方向用の電磁駆動機構を配置したが、この
配置は前後で逆とすることができる。また、想定される
使用条件や対象とする使用者によっては電磁駆動機構は
上下方向用または左右方向用のいずれか一方のみを設け
てもよい。この場合、第１と第２の実施形態のように補
正レンズ枠を直進駆動するタイプでは、空芯コイルを含
む電磁駆動機構は１つで足り、構成がより簡単になる。
その際、空芯コイル及び磁界生成手段の設置位置は、空
芯空間を光路として利用するのであれば補正レンズの前
後のいずれであってもよい。The present invention is not limited to the above embodiment. For example, in the first embodiment and the second embodiment, the electromagnetic drive mechanisms for the vertical direction are arranged on the optical path on the front side of the correction lens, and the electromagnetic drive mechanisms for the horizontal direction are arranged on the optical path on the rear side. The opposite can be done. Further, depending on the assumed use conditions and the intended user, the electromagnetic drive mechanism may be provided only in one of the vertical and horizontal directions. In this case, in the type in which the correction lens frame is driven linearly as in the first and second embodiments, only one electromagnetic drive mechanism including an air-core coil is sufficient, and the configuration is further simplified.
At this time, the installation position of the air core coil and the magnetic field generating means may be either before or after the correction lens as long as the air core space is used as an optical path.
【００２９】[0029]
【発明の効果】以上のように本発明は、補正レンズを駆
動する電磁駆動機構の空芯コイルの空芯部を光学系の光
路上に配したため、手振れ補正機構の正面投影面積を小
さく抑えて光学装置の小型化に寄与することができる。As described above, according to the present invention, since the air-core portion of the air-core coil of the electromagnetic drive mechanism for driving the correction lens is disposed on the optical path of the optical system, the front projection area of the camera shake correction mechanism can be reduced. This can contribute to miniaturization of the optical device.
【図１】本発明を適用した手振れ補正機構の第１の実施
形態を表す正面図である。FIG. 1 is a front view illustrating a first embodiment of a camera shake correction mechanism to which the present invention is applied.
【図２】図１のII-II 線に沿う断面図である。FIG. 2 is a sectional view taken along line II-II in FIG.
【図３】図１のIII-III 線に沿う断面図である。FIG. 3 is a sectional view taken along line III-III in FIG.
【図４】手振れ補正機構の制御回路の一例を表すブロッ
ク図である。FIG. 4 is a block diagram illustrating an example of a control circuit of the camera shake correction mechanism.
【図５】本発明による手振れ補正機構の第２の実施形態
を表す正面図である。FIG. 5 is a front view illustrating a second embodiment of a camera shake correction mechanism according to the present invention.
【図６】手振れ補正機構の第３の実施形態を表す正面図
である。FIG. 6 is a front view illustrating a third embodiment of a camera shake correction mechanism.
【図７】図６のVII-VII 線に沿う断面図である。FIG. 7 is a sectional view taken along line VII-VII in FIG.
Ｏ 光軸 １０ ４０ ５０ 手振れ補正ユニット １１ ４１ 補正レンズ枠 １１ａ 移動支持枠 １２ ４２ ４３ ５１ ５２ 補正レンズ（系） １３ ｘ貫通孔 １５ ４４ ガイド枠 １６ 固定支持部材 １６ａ ｙ貫通孔 １８ １９ ２２ ２３ 固定ヨーク板 ２０ ４５ ｙ駆動用空芯コイル ２０ａ ２４ａ ４５ａ 空芯部 ４７ａ ５５ａ ５６ａ 空芯部 ２１ａ ２１ｂ ４６ ｙ駆動用固定磁石 ２４ ４７ ｘ駆動用空芯コイル ２５ａ ２５ｂ ４８ ｘ駆動用固定磁石 ５３ 揺動アーム O Optical axis 10 40 50 Camera shake correction unit 11 41 Correction lens frame 11 a Moving support frame 12 42 43 51 52 Correction lens (system) 13 x through hole 15 44 guide frame 16 fixed support member 16 a y through hole 18 19 22 23 fixed yoke Plate 20 45 y Air core coil for driving 20a 24a 45a Air core portion 47a 55a 56a Air core portion 21a 21b 46 Fixed magnet for driving 24 47 x Air core coil for driving 25a 25b 48 Fixed magnet for x driving 53 Rocking arm
Claims (5)
支持された移動枠と、この移動枠に光軸上に位置させて
支持された補正レンズと、磁界生成手段と、この磁界生
成手段が生成する磁界中で上記移動枠と相対固定され、
通電により発生する推力で上記補正レンズを駆動させる
空芯コイルとを備えた手振れ補正機構において、 上記空芯コイルの空芯部を補正レンズの光路上に位置さ
せたことを特徴とする光学装置の手振れ補正機構。1. A moving frame movably supported parallel to a plane orthogonal to the optical axis, a correction lens supported by the moving frame on the optical axis, magnetic field generating means, and a magnetic field generating means. The moving frame is fixed relative to the moving frame in a magnetic field generated by the means,
An image stabilizing mechanism including an air-core coil for driving the correction lens with a thrust generated by energization, wherein the air-core portion of the air-core coil is positioned on the optical path of the correction lens. Camera shake correction mechanism.
て、光学装置は左右に一対の光軸を有し、上記移動枠は
該一対の光軸上にそれぞれ左右一対の補正レンズを位置
させて一体に支持しており、 上記空芯コイルは、左右の補正レンズに共通で、両補正
レンズの光路上に単一の空芯部を位置させるための横長
形状をなしている光学装置の手振れ補正機構。2. The camera shake correction mechanism according to claim 1, wherein the optical device has a pair of left and right optical axes, and the moving frame is formed by positioning a pair of left and right correction lenses on the pair of optical axes, respectively. The air core coil is common to the left and right correction lenses, and has a horizontally long shape for positioning a single air core on the optical path of both correction lenses. .
において、上記移動枠は光軸と直交する平面内で、互い
に直交する２方向へ直進移動可能に支持された２方向直
進移動枠であり、 この２方向直進移動枠の移動方向と平行な推力軸をそれ
ぞれ有する一対の空芯コイルが、その空芯部を補正レン
ズの光路上に位置させて２方向直進移動枠の前後位置に
それぞれ設けられている光学装置の手振れ補正機構。3. The camera shake correcting mechanism according to claim 1, wherein the moving frame is a two-way linear moving frame supported so as to be able to linearly move in two directions orthogonal to each other in a plane orthogonal to the optical axis. A pair of air-core coils each having a thrust axis parallel to the direction of movement of the two-way linearly moving frame is provided at the front and rear positions of the two-way linearly moving frame, with the air-core portion being positioned on the optical path of the correction lens. Camera shake correction mechanism of the optical device used.
て、光学装置は左右に一対の光軸を有し、上記移動枠
は、左右の光軸の中間で該光軸と平行な回動軸を中心
に、左右の光軸上に位置させた左右一対の補正レンズを
揺動させる揺動部材であり、 一対の空芯コイルが、その空芯部を左右の補正レンズの
光路上に位置させて揺動部材上に設けられている光学装
置の手振れ補正機構。4. The camera shake correction mechanism according to claim 1, wherein the optical device has a pair of left and right optical axes, and the moving frame has a rotation axis in the middle of the left and right optical axes that is parallel to the optical axes. A swinging member for swinging a pair of left and right correction lenses positioned on the left and right optical axes at the center, and a pair of air-core coils position the air-core portions on the optical paths of the left and right correction lenses. A camera shake correction mechanism of the optical device provided on the swing member.
振れ補正機構において、磁界生成手段は空芯コイルを挟
んだ光軸方向の前後位置に設けられる光学装置の手振れ
補正機構。5. The camera shake correction mechanism according to claim 1, wherein the magnetic field generation unit is provided at a front and rear position in the optical axis direction with the air-core coil interposed therebetween.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16997097A JP3863638B2 (en) | 1997-06-26 | 1997-06-26 | Optical image stabilization mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16997097A JP3863638B2 (en) | 1997-06-26 | 1997-06-26 | Optical image stabilization mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH1115037A true JPH1115037A (en) | 1999-01-22 |
| JP3863638B2 JP3863638B2 (en) | 2006-12-27 |
Family
ID=15896196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16997097A Expired - Fee Related JP3863638B2 (en) | 1997-06-26 | 1997-06-26 | Optical image stabilization mechanism |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3863638B2 (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000352651A (en) * | 1999-06-14 | 2000-12-19 | Ishikawajima Harima Heavy Ind Co Ltd | Lens holder |
| JP2002107785A (en) * | 2000-09-28 | 2002-04-10 | Fuji Photo Optical Co Ltd | Vibration-proof adapter |
| JP2005338714A (en) * | 2004-05-31 | 2005-12-08 | Pentax Corp | Imaging apparatus |
| JP2005351917A (en) * | 2004-06-08 | 2005-12-22 | Pentax Corp | Image blur correcting device |
| JP2006003421A (en) * | 2004-06-15 | 2006-01-05 | Sony Corp | Lens driving mechanism and imaging apparatus |
| JP2009053673A (en) * | 2007-07-27 | 2009-03-12 | Fujinon Corp | Xy stage and photographing apparatus |
| JP2009128377A (en) * | 2007-11-19 | 2009-06-11 | Sony Corp | Image blur correction device, lens barrel and imaging apparatus |
| JP2009288770A (en) * | 2008-04-30 | 2009-12-10 | Nidec Sankyo Corp | Optical unit with vibration correction function |
| US7715124B2 (en) | 2007-11-16 | 2010-05-11 | Panasonic Corporation | Optical element driving device and imaging apparatus |
| US8111295B2 (en) | 2008-12-17 | 2012-02-07 | Fujifilm Corporation | Image stabilizer and optical instrument therewith |
-
1997
- 1997-06-26 JP JP16997097A patent/JP3863638B2/en not_active Expired - Fee Related
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000352651A (en) * | 1999-06-14 | 2000-12-19 | Ishikawajima Harima Heavy Ind Co Ltd | Lens holder |
| JP2002107785A (en) * | 2000-09-28 | 2002-04-10 | Fuji Photo Optical Co Ltd | Vibration-proof adapter |
| JP4650594B2 (en) * | 2000-09-28 | 2011-03-16 | 富士フイルム株式会社 | Anti-vibration adapter |
| JP4671626B2 (en) * | 2004-05-31 | 2011-04-20 | Ｈｏｙａ株式会社 | Imaging device |
| JP2005338714A (en) * | 2004-05-31 | 2005-12-08 | Pentax Corp | Imaging apparatus |
| JP2005351917A (en) * | 2004-06-08 | 2005-12-22 | Pentax Corp | Image blur correcting device |
| TWI424249B (en) * | 2004-06-08 | 2014-01-21 | Pentax Ricoh Imaging Co Ltd | Anti-shake apparatus |
| JP4691326B2 (en) * | 2004-06-08 | 2011-06-01 | Ｈｏｙａ株式会社 | Image blur correction device |
| JP2006003421A (en) * | 2004-06-15 | 2006-01-05 | Sony Corp | Lens driving mechanism and imaging apparatus |
| CN100405110C (en) * | 2004-06-15 | 2008-07-23 | 索尼株式会社 | Lens driving mechanism and image pickup device |
| JP2009053673A (en) * | 2007-07-27 | 2009-03-12 | Fujinon Corp | Xy stage and photographing apparatus |
| US7933076B2 (en) | 2007-11-16 | 2011-04-26 | Panasonic Corporation | Optical element driving device and imaging apparatus |
| US7715124B2 (en) | 2007-11-16 | 2010-05-11 | Panasonic Corporation | Optical element driving device and imaging apparatus |
| JP2009128377A (en) * | 2007-11-19 | 2009-06-11 | Sony Corp | Image blur correction device, lens barrel and imaging apparatus |
| JP2009288770A (en) * | 2008-04-30 | 2009-12-10 | Nidec Sankyo Corp | Optical unit with vibration correction function |
| US8111295B2 (en) | 2008-12-17 | 2012-02-07 | Fujifilm Corporation | Image stabilizer and optical instrument therewith |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3863638B2 (en) | 2006-12-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10432862B2 (en) | Imaging apparatus, image projector apparatus, and stage apparatus | |
| CN107329348B (en) | Lens driving device with anti-shake function | |
| US11165325B2 (en) | Drive apparatus having drive unit using magnetic circuit | |
| US10247954B2 (en) | Stage apparatus having shake-correction function | |
| JPH11305277A (en) | Image blurring correcting device, optical equipment, lens barrel and photographing device | |
| KR101643160B1 (en) | Tilting type optical image stabilizer camera module | |
| JP2011085666A (en) | Lens driving device | |
| JPH1115037A (en) | Camera shake correcting mechanism for optical device | |
| US20240160027A1 (en) | Optical device for enhancing resolution of an image or for reducing speckle noise | |
| JP2013097028A (en) | Electromagnetic drive device | |
| JP2017107191A (en) | Stage device, and image projection device and imaging device including the same | |
| JP3365925B2 (en) | Lens drive | |
| CN108931875B (en) | Biaxial tilting movement device, photographing device, optical device, and electronic apparatus | |
| JPH0886949A (en) | Optical equipment | |
| JP2004326885A (en) | Objective lens driving device of optical head | |
| JP2017184600A (en) | Stage device | |
| JPH0886948A (en) | Optical equipment | |
| JP2013109248A (en) | Anti-vibration actuator | |
| US11696031B1 (en) | Drive mechanism, camera device and portable electric device | |
| JP2000199920A (en) | Vibration proofing device for camera | |
| CN206788528U (en) | Bi-axial tilt head, photographic means, Optical devices and electronic equipment | |
| JPH0882757A (en) | Biaxial luminous flux driving device | |
| CN110632730A (en) | Electromagnetic driving device, lens driving device, camera device and electronic apparatus | |
| JP2017003934A (en) | Drive unit | |
| KR20180002433A (en) | Dual optical actuator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20040420 |
|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20060404 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20060418 |
|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20060619 |
|
| TRDD | Decision of grant or rejection written | ||
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20060919 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20060929 |
|
| R150 | Certificate of patent (=grant) or registration of utility model |
Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20101006 Year of fee payment: 4 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20111006 Year of fee payment: 5 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20121006 Year of fee payment: 6 |
|
| S111 | Request for change of ownership or part of ownership |
Free format text: JAPANESE INTERMEDIATE CODE: R313111 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20121006 Year of fee payment: 6 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| S111 | Request for change of ownership or part of ownership |
Free format text: JAPANESE INTERMEDIATE CODE: R313111 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20121006 Year of fee payment: 6 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20121006 Year of fee payment: 6 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20131006 Year of fee payment: 7 |
|
| S533 | Written request for registration of change of name |
Free format text: JAPANESE INTERMEDIATE CODE: R313533 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| LAPS | Cancellation because of no payment of annual fees |