Image blur correction device, imaging lens unit, and camera unit

Abstract

An image blur correction device comprises: a flat plate-like base (100) having an opening section (101) open in an optical axis direction; a flat plate-like movable holding member (110) for holding a lens and supported so as to be movable within a plane perpendicular to the optical axis of the lens; a first drive mechanism (130) including a first magnet and a first coil to drive the movable holding member in a first direction perpendicular to the optical axis; a second drive mechanism (140) including a second magnet and a second coil to drive the movable holding member in a second direction perpendicular to the optical axis; and detecting means (170, 180) for detecting the position of the movable holding member. The movable holding member is movably supported located adjacent to a base. The first drive mechanism and the second drive mechanism are arranged at positions line-symmetrical with respect to a first straight line (S1) perpendicular to the optical axis of the lens. The configuration allows the device to be reduced in size and thickness and can highly accurately correct a shift of the optical axis of the lens due to hand shaking.

Description

Technical field [0001] The present invention relates to an image blur correction device (image blur correction device) mounted on a lens barrel or shutter unit of a digital camera, an imaging lens unit and a camera unit having the image blur correction device, and more particularly to an image blur correction device mounted on a portable telephone. Small and thin image shake correction devices, imaging lens units, and camera units used in camera units on portable information terminals. Background technique [0002] As a conventional image shake correction device, the following structure is known, that is, it has: a substantially rectangular base with an opening in the center; a first guide shaft provided on the front surface of the base; and a first movable member , Which can be supported to reciprocate freely along the first guide shaft; the second guide shaft, which is oriented in a direction at 90 degrees to the first guide shaft, and is arranged on the front surface of the fi...

AI Technical Summary

Problems solved by technology

[0008] However, in order to ensure that the welded portion 4b is formed on the front surface of the movable member 2, it is difficult to downsize the movable member (narrow width), etc.

In addition, because the welding portion 4b is close to the lens G, the heat of the soldering iron may be transferred to the movable member 2 or the lens G during the welding operation, and the movable member 2 or the lens G may be thermally damaged or damaged.

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