公开(公告)号：US20130194684A1

公开(公告)日：2013-08-01

申请号：US13739544

申请日：2013-01-11

Applicant: TDK CORPORATION

Inventor： Akira SUZUKI ,  Kazutomo IMI ,  Masaru UNO

IPC: G02B7/04

CPC classification number: G02B7/04 ,  G02B7/08 ,  H02N2/004 ,  H02N2/0055 ,  H02N2/006 ,  H02N2/0065 ,  H02N2/026

Abstract: A lens drive device comprises a lens holder, a piezoelectric actuator, a ball member held rotatably, and an biasing member configured to apply an biasing force to the lens holder toward the piezoelectric actuator through the ball member. The lens holder has a projection projecting outward from an outer peripheral surface and extending in a direction intersecting the projecting direction and optical axis. A side wall face of the projection is formed with a groove extending along the optical axis and engaging the ball member. A position receiving the biasing force from the biasing member and a position receiving the drive force from the actuator in the lens holder oppose each other through the projection interposed therebetween.

Abstract translation: 透镜驱动装置包括透镜保持器，压电致动器，可旋转地保持的球形构件以及被构造成通过球构件向透镜保持器施加偏压力朝向压电致动器的偏置构件。 透镜架具有从外周面向外突出并且沿与突出方向和光轴相交的方向延伸的突起。 突起的侧壁面形成有沿着光轴延伸并与球部件接合的凹槽。 接收来自偏置构件的偏置力的位置和从透镜架中的致动器接收驱动力的位置通过插入其间的突起彼此相对。

公开(公告)号：US20140307319A1

公开(公告)日：2014-10-16

申请号：US14251378

申请日：2014-04-11

Applicant: TDK Corporation

Inventor： Masaru UNO ,  Kazutomo IMI ,  Noriyuki KAWANO ,  Kazuhiko INOUE ,  Masashi GOTOH ,  Osamu OHHATA ,  Shintarou KOIKE ,  Yasuhide YAMASHITA

IPC: G02B27/64 ,  G02B7/04

CPC classification number: G02B27/646 ,  G02B7/08 ,  G03B3/10 ,  G03B2205/0069 ,  H04N5/2328

Abstract: A lens holding unit is held so that it can relatively move with respect to a base part to a direction vertical to an optical axis direction. The lens holding unit has a lens holder, a magnet part, and a spring. The lens holder has a first coil. The magnet part has a first magnet part which includes a first face facing to the first coil and a second magnet part which includes a second face vertical to the first face and constitutes a magnetic domain different from that of the first magnet part. These first magnet part and second magnet part are integrated.

Abstract translation: 保持透镜保持单元，使得其能够相对于基部相对于与光轴方向垂直的方向相对移动。 透镜保持单元具有透镜架，磁体部和弹簧。 透镜架具有第一线圈。 磁体部分具有第一磁体部分，其包括面向第一线圈的第一面和第二磁体部分，其包括垂直于第一面的第二面，并且构成与第一磁体部不同的磁畴。 这些第一磁体部分和第二磁体部分被集成。

公开(公告)号：US20140111877A1

公开(公告)日：2014-04-24

申请号：US14043311

申请日：2013-10-01

Applicant: TDK CORPORATION

Inventor： Masaru UNO ,  Kazutomo IMI

IPC: G02B7/02

CPC classification number: G02B7/023 ,  G02B7/08 ,  H02N2/004 ,  H02N2/026

Abstract: A lens drive device comprises a base, a lens holder, a piezoelectric actuator having a pair of frictional parts, and a pressing piece. The lens holder has a barrel, a projection projecting from the barrel, a support separated from the barrel, and a joint joining the projection and the support to each other. The pressing piece presses the piezoelectric actuator against the barrel so as to keep such a state that at least one of the pair of frictional parts is in contact with the barrel.

Abstract translation: 透镜驱动装置包括基座，透镜支架，具有一对摩擦部分的压电致动器和按压片。 透镜架具有筒体，从筒体突出的突起，与筒体分离的支撑体以及将突起和支撑件彼此接合的接头。 按压部件将压电致动器压靠在筒体上，以保持这一对摩擦部件中的至少一个与筒体接触的状态。