JP2012203321A5

JP2012203321A5 -

Info

Publication number: JP2012203321A5
Application number: JP2011069973A
Authority: JP
Filing date: 2011-03-28
Publication date: 2014-04-24
Anticipated expiration: 2031-03-28

Description

本発明は、例えばデジタルカメラ等の撮像装置、双眼鏡及び望遠鏡等の光学機器に搭載される像ブレ補正装置、該像ブレ補正装置を備える光学機器及び撮像装置に関する。 The present invention relates to an image blur correction device mounted on an image pickup apparatus such as a digital camera, optical equipment such as binoculars and a telescope, an optical apparatus including the image blur correction apparatus , and an image pickup apparatus .

そこで、本発明は、可動部材が移動する際の摺動摩擦をなくして、可動部材を駆動する駆動手段の負荷を軽減するとともに、可動部材の位置決め精度を向上させることができる像ブレ補正装置、該像ブレ補正装置を備える光学機器及び撮像装置を提供することを目的とする。 Therefore, the present invention provides an image blur correction device that eliminates sliding friction when the movable member moves, reduces the load on the driving means that drives the movable member, and improves the positioning accuracy of the movable member , It is an object of the present invention to provide an optical apparatus and an imaging apparatus including an image blur correction apparatus .

上記目的を達成するために、本発明の像ブレ補正装置は、固定部材と、前記固定部材に対して、前記固定部材に沿って第１の方向に移動が可能に支持され、回動軸を介して前記第１の方向と異なる第２の方向に前記固定部材に沿って回動が可能に支持される可動部材と、前記可動部材を前記第１の方向及び前記第２の方向に独立して移動させる駆動手段と、を備え、前記固定部材は、前記回動軸を前記第１の方向に案内するとともに、回動支持する案内部を有し、前記回動軸及び前記案内部は、磁性材料で形成されると共に、前記回動軸及び前記案内部の少なくとも一方に磁極が形成され、前記回動軸と前記案内部との間に発生する磁力より、前記案内部は、前記回動軸を非接触で前記第１の方向に案内し、回動支持することを特徴とする。 To achieve the above object, an image blur correction apparatus of the present invention includes a fixed member, relative to said stationary member, is moved in the first direction is rotatably supported along the fixing member, the rotation shaft Via a movable member supported so as to be rotatable along the fixed member in a second direction different from the first direction, and the movable member independent of the first direction and the second direction. Driving means for moving the fixing shaft, and the fixing member has a guide portion for rotating and supporting the rotating shaft in the first direction, and the rotating shaft and the guiding portion are And a magnetic pole is formed on at least one of the rotation shaft and the guide portion, and the guide portion is rotated by the magnetic force generated between the rotation shaft and the guide portion. The moving shaft is guided in the first direction in a non-contact manner and is supported to rotate.

Claims

A fixing member;
The fixing member is supported so as to be movable in the first direction along the fixing member, and along the fixing member in a second direction different from the first direction via a rotation shaft. A movable member supported to be rotatable;
Driving means for independently moving the movable member in the first direction and the second direction;
The fixing member has a guide portion that guides the rotation shaft in the first direction and supports the rotation.
The rotating shaft and the guide portion are made of a magnetic material, and a magnetic pole is formed on at least one of the rotating shaft and the guide portion, and a magnetic force generated between the rotating shaft and the guide portion. Accordingly, the guide unit guides the rotation shaft in the first direction in a non-contact manner , and supports the image blur correction.

The pivot shaft and the guide section, the image blur correction device according to claim 1, characterized in that the different magnetic poles in a portion facing in the axial direction of the rotating shaft is formed.

The tip of the pivot shaft is formed in a taper shape,
The guide portion is disposed on both sides of the tip end portion of the rotating shaft in a third direction orthogonal to the first direction on the surface of the fixed member facing the movable member,
An image blur correction device according to claim 1, characterized in that the same magnetic poles are formed in said guide portion and the distal portion of the pivot shaft.

The movable member is supported so as to be movable along the fixed member via rolling of a ball disposed between the movable member and the fixed member.
4. The ball according to claim 1, wherein the ball receives a force sandwiched between the movable member and the fixed member by a magnetic force generated between the rotating shaft and the guide portion. or image shake correction apparatus according to item 1.

Said driving means is an electromagnetic drive means, said guide portion, the image blur correction device according to any one of claims 1 to 4, characterized in that also serves as a yoke of the driving means.

Said movable member, the image blur correction device according to any one of claims 1 to 5, characterized in that to hold the image blur correction optical system.

The image according to claim 6, wherein the first direction is a direction of a line connecting a center of the image blur correction optical system at a reference position of the movable member and a center of the rotation shaft. Blur correction device.

Optical apparatus equipped with the image blur correction apparatus according to any one of claims 1 to 7.

Imaging apparatus including an image blur correction apparatus according to any one of claims 1 to 7.