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Drive apparatus and image pickup apparatus

A technology for a driving device and a camera device, which is applied in the directions of printing devices, projection devices, installation, etc., can solve the problems of reduced output of the driving device and waste of vibration energy of the vibrator.

Inactive Publication Date: 2012-01-04
OLYMPUS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to this unnecessary resonance, the following disadvantages occur: the vibration energy of the vibrator is wasted and the output of the drive device is reduced, or an audible sound is generated.

Method used

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  • Drive apparatus and image pickup apparatus
  • Drive apparatus and image pickup apparatus
  • Drive apparatus and image pickup apparatus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0044] Next, the best mode for implementing the driving device and the imaging device of the present invention will be described with reference to the drawings.

[0045] In addition, the imaging device of each embodiment is equipped with a driving device for correcting camera shake of an imaging unit including an imaging element that obtains an image signal through photoelectric conversion. An example of a lens reflex electronic camera (digital camera) will be described. The present invention is not limited to the following embodiments, and various modifications can be made without departing from the gist of the present invention.

[0046] First, refer to figure 1 A system configuration example of a camera that is an imaging device according to the first embodiment of the present invention will be described.

[0047] figure 1 It is a block diagram schematically showing the main electrical system configuration of the camera of this embodiment.

[0048] The camera of this em...

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Abstract

The invention provides a driving device and imaging device. the driving device, namely an anti-vibration unit has: an X-axis transducer generating elliptical vibration in drivers; a frame which is a fixing member having a holding portion for holding the X-axis transducer; an X frame having fixed thereto a slide element to which the drivers of the X-axis transducer are pressed and which moves in the X-axis direction with respect to the frame; a Y-axis transducer held by a holding portion provided in the X-frame and generating elliptical vibration in drivers; and a Y frame having fixed thereto a slide element to which the drivers of the Y-axis transducer are pressed and which moves in the Y-axis direction with respect to the X frame. The X-axis transducer and the Y-axis transducer have substantially same resonant frequency, and the slide elements differ in at least one of rigidity and density thereof, thereby providing a drive apparatus down-sized, large in driving force and high in efficiency.

Description

technical field [0001] The present invention relates to a driving device for driving a moving body to move in a predetermined direction by elliptical vibration of a vibrator, and an imaging device such as a digital camera for performing shake correction by the driving device. Background technique [0002] Conventionally, as an imaging device having a shake correction function, there is a camera, for example. As the camera-shake correction function that this camera has, there is known a hand-shake correction function that uses a shake detection member such as an angular velocity sensor to detect camera shake vibration in the pitch direction and camera shake vibration in the camera yaw direction, and based on the detected shake signal, In the direction of eliminating shaking, a part of the imaging optical system or the imaging element is independently displaced in the horizontal direction and the vertical direction in a plane perpendicular to the imaging optical axis, thereby ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03B5/00G02B7/02H02N2/00H04N5/225H10N30/00
CPCG03B5/02H04N5/23248H04N23/68
Inventor 川合澄夫
Owner OLYMPUS CORP