Vibration-type driving unit, two-dimensional driving apparatus, image-blur correction apparatus, interchangeable lens, image capturing apparatus, and automatic stage

Patent metadata

Field	Value
Publication number	US-9247140-B2
Application number	US-201414249053-A
Country	US
Kind code	B2
Filing date	Apr 9, 2014
Priority date	Apr 12, 2013
Publication date	Jan 26, 2016
Grant date	Jan 26, 2016

Abstract

A vibration-type driving unit includes a vibrator including an electro-mechanical transducer; a moving body provided with the vibrator; a contact member in contact with the vibrator provided on the moving body; a support member configured to support the contact member; and a moving mechanism configured to move the moving body relative to the support member. The vibrator and the contact member are disposed so that the vibrator moves in a first direction relative to the contact member. The moving mechanism is configured to move the moving body relative to the support member in a second direction intersecting the first direction in a plane parallel to a plane in which the vibrator and the contact member are in contact with each other.

First claim

What is claimed is:

1. A vibration-type driving device comprising:
a first vibrator including an electro-mechanical transducer;
a first contact member in contact with the first vibrator wherein the first vibrator and the first contact member are configured so that a relative position of the first vibrator and the first contact member changes in a first direction;
a first supporting member configured to support the first contact member;
a second vibrator including an electro-mechanical transducer;
a second contact member in contact with the second vibrator wherein the second vibrator and the second contact member are configured so that a relative position of the second vibrator and the second contact member changes in a second direction, the second direction intersecting the first direction;
a second supporting member configured to support the second contact member;
a moving body provided with the first vibrator and the second vibrator;
a first moving mechanism configured to allow the moving body and the first vibrator to move relative to the first support member in a third direction intersecting the first direction in a plane parallel to a plane in which the first vibrator and the first contact member are in contact with each other; and
a second moving mechanism configured to allow the moving body and the second vibrator to move relative to the second support member in a fourth direction intersecting the second direction in a plane parallel to a plane in which the second vibrator and the second contact member are in contact with each other,
wherein the first vibrator, the first contact member, and the moving body is configured so that the first vibrator and the moving body move relative to the first contact member when the first vibrator is driven, and
wherein the second vibrator, the second contact member, and the moving body are configured so that the second vibrator and the moving body move relative to the second contact member when the second vibrator is driven.

2. The vibration-type driving device according to claim 1 , wherein the first vibrator is shorter in length than the first contact member in the first direction.

3. The vibration-type driving device according to claim 1 , wherein the first moving mechanism is disposed between the support member and the first contact member.

4. The vibration-type driving device according to claim 1 , wherein the first moving mechanism includes a guide member movable in the third direction.

5. The vibration-type driving device according to claim 4 , wherein the guide member includes a member having a curved portion that is rollable.

6. The vibration-type driving device according to claim 1 , wherein the first moving mechanism includes an elastic member.

7. The vibration-type driving device according to claim 1 , further comprising a limiting mechanism configured to limit the amount of relative movement of the first vibrator and the first contact member in the third direction.

8. The vibration-type driving device according to claim 1 , further comprising a rotation mechanism configured to make the moving body rotatable relative to the first support member.

9. The vibration-type driving device according to claim 1 , wherein the first direction is parallel to the third direction.

10. The vibration-type driving device according to claim 1 , wherein the second direction is parallel to the fourth direction.

11. The vibration-type driving device according to claim 1 , wherein the first direction is perpendicular to the second direction.

12. The vibration-type driving device according to claim 1 , wherein the third direction is perpendicular to the fourth direction.

13. An image-blur correction apparatus comprising:
the vibration-type driving device according to claim 1 ; and
an optical lens or an image sensor mounted to the moving body of the vibration-type driving device.

14. An interchangeable lens comprising:
the vibration-type driving device according to claim 1 ; and
an optical lens mounted to the moving body of the vibration-type driving device.

15. An image capturing apparatus comprising:
the vibration-type driving device according to claim 1 ;
an optical lens or an image sensor mounted to the moving body of the vibration-type driving device; and
a power source.

16. An automatic stage comprising:
the vibration-type driving device according to claim 1 ; and
an observation-target mount portion mounted on the moving body.

17. A vibration-type driving device comprising:
a first vibrator including an electro-mechanical transducer;
a first contact member in contact with the first vibrator wherein the first vibrator and the first contact member are configured so that a relative position of the first vibrator and the first contact member changes in a first direction;
a first moving body comprising:
a first moving-body main portion;
a first vibrator fixing portion configured to fix the first vibrator; and
a first moving mechanism configured to move the first moving-body main portion relative to the first vibrator,

a second vibrator including an electro-mechanical transducer;
a second contact member in contact with the second vibrator wherein the second vibrator and the second contact member are configured so that a relative position of the second vibrator and the second contact member changes in a second direction, the second direction intersecting the first direction; and
a second moving body comprising:
a second moving-body main portion;
a second vibrator fixing portion configured to fix the second vibrator; and
a second moving mechanism configured to move the second moving-body main portion relative to the second vibrator,
wherein the first moving mechanism is configured to allow the first moving body main portion to move relative to the first vibrator in a third direction intersecting the first direction in a plane parallel to a plane in which the first vibrator and the first contact member are in contact with each other,
wherein the second moving mechanism is configured to allow the second moving body main portion to move relative to the second vibrator in a fourth direction intersecting the second direction in a plane parallel to a plane in which the second vibrator and the second contact member are in contact with each other,
wherein the first vibrator, the first contact member, and the first moving body are configured so that the first vibrator and the first moving body move relative to the first contact member when the first vibrator is driven, and
wherein the second vibrator, the second contact member, and the second moving body are configured so that the second vibrator and the second moving body move relative to the second contact member when the second vibrator is driven.

18. The vibration-type driving device according to claim 17 , wherein the first moving mechanism includes a guide and a round bar provided at the moving body.

19. The vibration-type driving device according to claim 17 , wherein the first direction is parallel to the third direction.

20. The vibration-type driving device according to claim 17 , wherein the second direction is parallel to the fourth direction.

21. The vibration-type driving device according to claim 17 , wherein the first direction is perpendicular to the second direction.

22. The vibration-type driving device according to claim 17 , wherein the third direction is perpendicular to the fourth direction.

23. An image-blur corr

Assignees

• Canon Kk

Inventors

• Ohashi Kaishi

Classifications

• H04N23/687 Primary

  by shifting the lens or sensor position · CPC title

• H04N23/685

  performed by mechanical compensation · CPC title

• H02N2/0055 Primary

  Supports for driving or driven bodies; Means for pressing driving body against driven body · CPC title

• G03B2205/0061

  using piezoelectric actuators · CPC title

• H02N2/0095

  producing combined linear and rotary motion, e.g. multi-direction positioners · CPC title