Title:
レンズ鏡筒及び撮像装置
Document Type and Number:
Japanese Patent JP5482731
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a lens barrel that improves stillness in wobbling operation, and an electronic camera.SOLUTION: A lens barrel includes: a vibration actuator for driving a focusing lens that allows a subject image to be focused; an amplifier part for applying a pair of amplified drive signals to the vibration actuator; a phase shift part for changing a phase difference between the pair of the drive signals; and a control part for executing a first process to allow the phase shift part to perform an operation for periodically changing the phase difference between the pair of drive signals upon the input of a signal for instructing the vibration actuator to drive.
Inventors:
Takatoshi Ashizawa
Application Number:
JP2011114821A
Publication Date:
May 07, 2014
Filing Date:
May 23, 2011
Export Citation:
Assignee:
NIKON CORPORATION
International Classes:
G02B7/04; H02N2/00; H04N5/225
Domestic Patent References:
| JP2009153286A | ||||
| JP2002199749A | ||||
| JP2010233316A | ||||
| JP2009089586A | ||||
| JP2011101559A |
Foreign References:
| WO2008139723A1 | ||||
| WO2009130892A1 |
Attorney, Agent or Firm:
Masatake Shiga
Tadashi Takahashi
Kazuya Nishi
Tadashi Takahashi
Kazuya Nishi