Title:
レンズ駆動機構、レンズユニット及び撮像装置
Document Type and Number:
Japanese Patent JP4547621
Kind Code:
B2
Abstract:
A lens driving mechanism is disclosed which can achieve miniaturization of the mechanism by simplification and enhancement of the reliability in position control of a movable block. The lens driving mechanism includes a piezoelectric element deformed when energized for functioning as a driving section for applying driving force to the movable block, a restriction section for restricting the movement of the movable block in the predetermined direction, and a detection section for detecting a predetermined amount regarding the piezoelectric element. The initial position of the movable block is set as a position at an extremity of the movement of the movable block within a movable range based on an inflection point of the predetermined amount detected by the detection section when the movable block moved by the deformation of the piezoelectric element is restricted by the restriction section.
Inventors:
Takiro Makii
Application Number:
JP2005083640A
Publication Date:
September 22, 2010
Filing Date:
March 23, 2005
Export Citation:
Assignee:
ソニー株式会社
International Classes:
G02B7/04
Domestic Patent References:
| JP2262612A | ||||
| JP2003066312A | ||||
| JP11204848A | ||||
| JP2005284169A | ||||
| JP2006033912A |
Attorney, Agent or Firm:
Yuji Komatsu
Masanobu Iwata
Masanobu Iwata