IMAGE STABILIZING APPARATUS AND OPTICAL APPARATUS HAVING THE SAME

• US 20110292509A1
• Filed: 05/18/2011
• Published: 12/01/2011
• Est. Priority Date: 05/27/2010
• Status: Active Grant

• Current Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Original Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Inventors: YASUDA, Hiromu
• Granted Patent: US 8,928,977 B2
• Time in Patent Office: Days
• US Class Current: 359/554
• 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 2205/0015 by displacing one or more optical elements normal to the optical axis
• CPC Class Codes: G03B 5/00 Adjustment of optical system relative to image or object surface other than for focusing

Abstract

An image stabilizing apparatus for correcting an image shake by moving an optical element arranged in a lens barrel in a plane orthogonal to an optical axis includes a first rolling holder configured to support a first rolling member so as to be capable of rolling in a first direction orthogonal to the optical axis, the first rolling member moving the optical element in the first direction, and a fixed member attached to a surface of the first rolling holder and providing support for the lens barrel, the first rolling member being provided on the surface.

Claims

1. An image stabilizing apparatus for correcting an image shake by moving an optical element arranged in a lens barrel in a plane orthogonal to an optical axis, said image stabilizing apparatus comprising:

a first rolling holder configured to support a first rolling member so as to be capable of rolling in a first direction orthogonal to the optical axis, the first rolling member moving the optical element in the first direction; and

a fixed member attached to a surface of the first rolling holder and providing support for the lens barrel, the first rolling member being provided on the surface.

2. The image stabilizing apparatus according to claim 1, further comprising:

a second rolling holder configured to support a second rolling member so as to be capable of rolling in a second direction different from the first direction and orthogonal to the optical axis, the second rolling member moving the optical element in the second direction; and

a movable member attached to a surface of the second rolling holder and holding the optical element, the second rolling member being provided on the surface.

3. The image stabilizing apparatus according to claim 1, wherein the fixed member includes a first opening for housing the first rolling member.

4. The image stabilizing apparatus according to claim 2, wherein the movable member includes a second opening for housing the second rolling member.

5. The image stabilizing apparatus according to claim 1, further comprising a feed cable configured to supply a power from a power source,

wherein at least a part of the feed cable is disposed between the fixed member and the first rolling holder.

6. The image stabilizing apparatus according to claim 2, further comprising a feed cable configured to supply a power from a power source,

wherein at least a part of the feed cable is disposed between the movable member and the second rolling holder.

7. The image stabilizing apparatus according to claim 1, wherein the first rolling holder has hardness higher than hardness of the fixed member.

8. The image stabilizing apparatus according to claim 2, wherein the second rolling holder has hardness higher than hardness of the movable member.

9. The image stabilizing apparatus according to claim 3, wherein the first opening has an opening in a first side contacting the first rolling holder and an opening in a second side opposite to the first side, a width of the opening in the first side being larger than a diameter of the first rolling member, and a width of the opening in the second side being smaller than the diameter of the first rolling member.

10. The image stabilizing apparatus according to claim 4, wherein the second opening has an opening in a third side contacting the second rolling holder and an opening in a forth side opposite to the third side, a width of the opening in the third side being larger than a diameter of the second rolling member, and a width of the opening in the forth side being smaller than the diameter of the second rolling member.

11. An optical apparatus comprising the image stabilizing apparatus according to claim 1.