JP2003222918A5

JP2003222918A5 -

Info

Publication number: JP2003222918A5
Application number: JP2002019662A
Authority: JP
Filing date: 2002-01-29
Publication date: 2005-04-28

Description

【０００６】
【課題を解決するための手段】
この課題を解決するために本発明のレンズ鏡筒は、像ぶれ補正レンズ及びこの像ぶれ補正レンズを光軸と直交する２方向に駆動する第１、第２のアクチュエータからなり、光軸方向に移動可能な像ぶれ補正手段と、撮像素子の露光時間を制御する光軸方向に移動可能なシャッターユニットと、前記像ぶれ補正手段より撮像素子側に配され、光軸方向に移動可能なフォーカス調整用レンズと、少なくとも１枚のレンズを有し、前記像ぶれ補正手段及びシャッターユニットの外周を覆った状態で光軸方向に摺動自在に支持されたレンズ枠とを備えたレンズ鏡筒であって、前記第１、第２のアクチュエータと、前記シャッターユニットを駆動する第３のアクチュエータと、前記フォーカス調整用レンズを光軸方向に移動させる第４のアクチュエータを、光軸と直交する面内において互いに干渉しない位置に配置したことを特徴とするものである。この構成とすることにより、駆動手段により像ぶれ補正手段を光軸方向に移動させることが可能なレンズ鏡筒を実現でき、沈胴式のカメラなどにも対応することが可能となり、更にレンズ鏡筒の小型化を実現することができる。 0006
[Means for solving problems]
In order to solve this problem, the lens barrel of the present invention comprises an image blur correction lens and a first and second actuators for driving the image blur correction lens in two directions orthogonal to the optical axis, in the optical axis direction. A movable image blur correction means, a shutter unit movable in the optical axis direction for controlling the exposure time of the image pickup element, and a focus adjustment arranged on the image pickup element side from the image blur correction means and movable in the optical axis direction. A lens barrel provided with a lens for use, a lens frame having at least one lens and slidably supported in the optical axis direction while covering the image blur correction means and the outer periphery of the shutter unit. The first and second actuators, the third actuator that drives the shutter unit, and the fourth actuator that moves the focus adjustment lens in the optical axis direction are moved in a plane orthogonal to the optical axis. It is characterized by being arranged at a position where it does not interfere with each other . With this configuration, it is possible to realize a lens barrel that can move the image blur correction means in the optical axis direction by the driving means, and it is also possible to support a retractable camera, etc., and a lens mirror. It is possible to reduce the size of the cylinder.

【００５６】
【発明の効果】
以上のように本発明によれば、像ぶれ補正レンズを搭載した像ぶれ補正装置を光軸方向に沿って移動可能とし、像ぶれ補正装置の２つのアクチュエータとシャッターユニットの駆動アクチュエータとフォーカス調整用レンズを光軸方向に移動させるアクチュエータを、光軸と直交する面内において互いに干渉しない位置に配置したことにより、沈胴時のレンズ鏡筒の光軸方向の長さを短縮することができる。さらにカメラ非使用時には沈胴可能となり、携帯性に優れたカメラを提供出来るとともに、小型ながら明るいレンズを提供出来る。また、像ぶれ補正装置を２本のガイドポールにより支持し、ガイドポール支持手段を２つのアクチュエータの間に構成したことにより、従来はデッドスペースであった場所を有効に利用し、他の部品との干渉を避けることができるため、精度良く光軸方向に移動させることができるばかりでなく、レンズ鏡筒のさらなる小型化を実現することができるという顕著な効果が得られる。 0056
【The invention's effect】
As described above, according to the present invention, the image blur correction device equipped with the image blur correction lens can be moved along the optical axis direction, and the two actuators of the image blur correction device, the drive actuator of the shutter unit, and the focus adjustment are used. By arranging the actuators that move the lens in the optical axis direction at positions that do not interfere with each other in the plane orthogonal to the optical axis, the length of the lens barrel in the optical axis direction when retracted can be shortened. Furthermore, when the camera is not used, it can be retracted, providing a highly portable camera and providing a small but bright lens. In addition, by supporting the image blur correction device with two guide poles and configuring the guide pole support means between the two actuators, the place that was conventionally a dead space can be effectively used, and other parts can be used. Since it is possible to avoid the interference of the lens barrel, not only the lens barrel can be moved accurately in the optical axis direction, but also the lens barrel can be further miniaturized, which is a remarkable effect.

Claims

An image stabilizer comprising an image blur correction lens and first and second actuators for driving the image blur correction lens in two directions orthogonal to the optical axis and movable in the optical axis direction;
A shutter unit movable in an optical axis direction for controlling an exposure time of the imaging device;
A lens for focus adjustment which is disposed on the side of the image sensor from the image blur correction means and is movable in the optical axis direction;
A lens barrel comprising at least one lens, and a lens frame slidably supported in the optical axis direction in a state of covering the outer periphery of the image blur correction means and the shutter unit,
The first and second actuators, the third actuator for driving the shutter unit, and the fourth actuator for moving the focus adjustment lens in the optical axis direction interfere with each other in a plane orthogonal to the optical axis A lens barrel characterized in that the lens barrel is disposed at a position where it does not move.

The lens barrel according to claim 1, wherein the first or second actuator and the third or fourth actuator are disposed on substantially opposite sides of the optical axis center.

The image blur correction means is provided with a guide means for slidably holding the image blur correction means in the optical axis direction, and the image blur correction means is provided with a fitting portion for fitting with the guide means. The lens barrel as described in any one of 2 and 3.

The lens barrel according to claim 3, wherein the fitting portion is provided between the first and second actuators.

5. An imaging apparatus equipped with the lens barrel according to any one of claims 1 to 4, characterized in that the lens frame projects from the apparatus body at the time of shooting, and the lens frame does not project from the apparatus body at the time of non-shooting. Imaging device.