ANTI-VIBRATION ACTUATOR, LENS UNIT AND CAMERA FURNISHED THEREWITH, AND MANUFACTURING METHOD FOR SAME

摘要

To provide an anti-vibration actuator capable of smooth transition to image-blur prevention control. The present invention is an actuator (10) furnished with a locking mechanism, including: a fixed portion (12); a movable portion (14) with an image-blur prevention lens (16); a movable portion support means (18); a drive means for driving the movable portion; a movable portion locking mechanism (42) for locking a movable portion by limiting the range over which the movable portion can move to be within a predetermined locked movable range; a memory section (36a), within which is stored the movable portion initial position to which the movable portion is moved upon startup of image-blur prevention control; and a control section (36) for moving the movable portion to the initial position and releasing the lock upon startup of control; whereby the predetermined position in the locked movable range is stored as an initial position.

主权项

1. A method for manufacturing a lens unit furnished with an anti-vibration actuator for executing image-blur prevention control, comprising steps of:
disposing an image capturing lens and an anti-vibration actuator inside a lens barrel; placing a movable portion locking mechanism of the anti-vibration actuator in a locked state; and adjusting the anti-vibration actuator; wherein the step of adjusting includes steps of: driving the movable portion of the anti-vibration actuator in a first direction in the locked state and measuring the range over which the movable portion is able to move in the first direction; driving the movable portion of the anti-vibration actuator in a second direction, different from the first direction, in the locked state, and measuring the range over which the movable portion is able to move in the second direction; determining a movable portion initial position at the time of startup of image-blur prevention control by the anti-vibration actuator, within the movable range in the first direction and within the movable range in the second direction, and storing same in a memory section.