IMAGE STABILIZING APPARATUS

Abstract

An image stabilizing apparatus of the present invention includes a laminated substrate 19 that has a coil pattern, a hall element 21 fixed to the laminated substrate 19, a magnet 20, a back yoke 22, an opposing yoke 23, and a flexible printed circuit board for wiring the coil pattern on the laminated substrate and the hall element 21, the opposing yoke 23 being stepped (recesses 23a, 23b) in a portion opposing the hall element 21. Reduction in size, weight and cost are thereby realized in a lens-shift image stabilizing apparatus.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a cross-sectional view of a lens barrel according to an embodiment 1.

FIG. 2 is an exploded perspective view of the lens barrel according to embodiment 1.

FIG. 3 is an exploded perspective view of an image stabilizing apparatus according to embodiment 1.

FIG. 4 is a front view of the image stabilizing apparatus according to embodiment 1.

FIG. 5 is a cross-sectional view of an A-A portion of the image stabilizing apparatus according to embodiment 1.

FIG. 6 is a cross-sectional view of a B-B portion of the image stabilizing apparatus according to embodiment 1.

FIG. 7A is a perspective view of an opposing yoke according to an embodiment 2.

FIG. 7B is a cross-sectional view of a C-C portion of the opposing yoke according to embodiment 2.

FIG. 8 is a perspective view of a conventional image stabilizing apparatus.

FIG. 9 is an exploded perspective view of a conventional image stabilizing apparatus.

FIG. 10 is a cross-sectional view of an actuator portion of a conventional image stabilizing apparatus.

Claims

1. An image stabilizing apparatus comprising: a correction lens that includes at least one lens and is for correcting subject image blur;a holding frame that holds the correction lens; anda correction unit frame that directly or indirectly holds the holding frame movably within a vertical plane to an optical axis of the lens, whereinthe correction unit frame includes at least a magnet,the holding frame includes at least a flat coil having a coil pattern for mobilizing the holding frame using a magnetic force of the magnet, and a position detection sensor that detects information for ascertaining a relative position of the holding frame and the correction unit frame using the magnetic force of the magnet, andthe position detection sensor, the flat coil and the magnet are disposed in the stated order along an optical axis direction of the lens.

2. The image stabilizing apparatus according to claim 1, further comprising an opposing yoke, wherein the opposing yoke is disposed opposite the position detection sensor on an opposite side to a side on which the magnet is disposed when viewed from the position detection sensor, and has a recess formed in a surface opposing the position detection sensor at least in a portion opposing the position detection sensor.

3. The image stabilizing apparatus according to claim 2, wherein the recess is surrounded by a flat portion that is flush with a main surface of the opposing yoke.

4. The image stabilizing apparatus according to claim 1, wherein the magnet is a rectangular parallelepiped.

5. The image stabilizing apparatus according to claim 1, wherein the position detection sensor is mounted on a flexible substrate, andthe flexible substrate is attached to a surface of the flat coil on an opposite side to a side on which the magnet is disposed.

6. A lens barrel comprising an image stabilizing apparatus, wherein the image stabilizing apparatus includes: a correction lens that includes at least one lens and is for correcting subject image blur;a holding frame that holds the correction lens; anda correction unit frame that directly or indirectly holds the holding frame movably within a vertical plane to an optical axis of the lens, whereinthe correction unit frame includes at least a magnet,the holding frame includes at least a flat coil having a coil pattern for mobilizing the holding frame using a magnetic force of the magnet, and a position detection sensor that detects information for ascertaining a relative position of the holding frame and the correction unit frame using the magnetic force of the magnet, andthe position detection sensor, the flat coil and the magnet are disposed in the stated order along an optical axis direction of the lens.

7. An image sensing apparatus comprising an image stabilizing apparatus, wherein the image stabilizing apparatus includes: a correction lens that includes at least one lens and is for correcting subject image blur;a holding frame that holds the correction lens; anda correction unit frame that directly or indirectly holds the holding frame movably within a vertical plane to an optical axis of the lens, whereinthe correction unit frame includes at least a magnet,the holding frame includes at least a flat coil having a coil pattern for mobilizing the holding frame using a magnetic force of the magnet, and a position detection sensor that detects information for ascertaining a relative position of the holding frame and the correction unit frame using the magnetic force of the magnet, andthe position detection sensor, the flat coil and the magnet are disposed in the stated order along an optical axis direction of the lens.