Drive device and image pickup apparatus

• US 20100220206A1
• Filed: 02/19/2010
• Published: 09/02/2010
• Est. Priority Date: 03/02/2009
• Status: Active Grant

• Current Assignee: Sony Corporation (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: Sato, Syuuichi, Nagano, Kouta
• Granted Patent: US 8,174,582 B2
• Time in Patent Office: Days
• US Class Current: 348/222.100
• CPC Class Codes: G02B 27/646 compensating for small deviations, e.g. due to vibration or shake movement of one or more optical elements for control of motion blur in cameras, projectors or printers G03B2205/0007; image stabilisation in cameras peculiar to the presence or use of an electronic image sensor H04N23/68
• CPC Class Codes: G03B 2205/0038 by displacing the image plane with respect to the optical axis in case of an electronic image sensor H04N23/68
• CPC Class Codes: G03B 5/00 Adjustment of optical system relative to image or object surface other than for focusing
• CPC Class Codes: H04N 23/54 Mounting of pick-up tubes, electronic image sensors, deviation or focusing coils
• CPC Class Codes: H04N 23/68 for stable pick-up of the scene, e.g. compensating for camera body vibrations
• CPC Class Codes: H04N 23/687 by shifting the lens or sensor position

Abstract

Disclosed herein is a drive device including an imaging element creating a image signal relating to an object image, a securing body, a displacement body capable of displacement in a predetermined direction in a predetermined plane having a light-receiving surface of the imaging element with respect to the securing body with the imaging element mounted to the displacement body, and a first guide mechanism and a second guide mechanism adapted each to guide displacement of the displacement body in the predetermined direction. The second guide mechanism includes a guide device, and a guided device. The guide device is configured to be positionally changeable in a plane parallel to the predetermined plane. The displacement body is turnably displaced with the first guide mechanism serving as a fulcrum when the guided device is displaced in response to the positional change of the guide device.

Claims

1. A drive device comprising:

an imaging element creating a image signal relating to an object image;

a securing body;

a displacement body capable of displacement in a predetermined direction in a predetermined plane including a light-receiving surface of the imaging element with respect to the securing body with the imaging element mounted to the displacement body; and

a first guide mechanism and a second guide mechanism adapted each to guide displacement of the displacement body in the predetermined direction;

wherein the second guide mechanism includes

guide means provided on the securing body, and

guided means provided on the displacement body and guided by the guide means,

the guide means being configured to be positionally changeable in a plane parallel to the predetermined plane, and

the displacement body being turnably displaced with the first guide mechanism serving as a fulcrum when the guided means is displaced in response to the positional change of the guide means.

2. The drive device according to claim 1,

wherein, if a straight line passing the first guide mechanism and the second guide mechanism is assumed, the guide means is positionally changed in a direction different from the predetermined direction and in a direction different from a direction along the straight line.

3. The drive device according to claim 2,

wherein the first guide mechanism and the second guide mechanism are provided along the predetermined direction, and

the guide means is positionally changeable in a direction vertical to the predetermined direction.

4. The drive device according to claim 3,

wherein the guide means includes

a first flat plate and a second flat plate opposed to each other, and

pressing means pressing the second flat plate toward the first flat plate, and

the guided means is a projecting portion projecting from the displacement body,

the projecting portion being put between the first flat and the second flat plate, and

the first flat plate being configured to be positionally changeable in a direction vertical to the predetermined direction.

5. The drive device according to claim 4, further comprising:

a drive portion mounted to the securing body; and

a driven body displaced by undergoing a drive force from the drive portion;

wherein the driven body is not secured to the displacement body but is displaced in conjunction with the displacement body in response to the drive force.

6. An image pickup apparatus comprising:

an imaging element creating a image signal relating to an object image; and

a drive unit;

wherein the drive unit includes

a securing body,

a displacement body capable of displacement in a predetermined direction in a predetermined plane including a light-receiving surface of the imaging element with respect to the securing body with the imaging element mounted to the displacement body,

a first guide mechanism and a second guide mechanism adapted each to guide displacement of the displacement body in the predetermined direction, and

the second guide mechanism including

guide means provided on the securing body, and

guided means provided on the displacement body and guided by the guide means,

the guide means being configured to be positionally changeable in a plane parallel to the predetermined plane, and

the displacement body being turnably displaced with the first guide mechanism serving as a fulcrum when the guided means is displaced in response to the positional change of the guide means.