公开(公告)号：US20190267880A1

公开(公告)日：2019-08-29

申请号：US16413314

申请日：2019-05-15

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Hirohide ICHIHASHI ,  Masakazu KOBAYASHI ,  Yasuaki KAMEYAMA ,  Tsutomu SHIMOMURA ,  Tsubasa HOSHINO

IPC: H02K33/16 ,  G03B15/00 ,  G03B17/56 ,  G06F3/0338 ,  H04N5/225 ,  G03B5/00

Abstract: An actuator includes drive magnets (first drive magnet and second drive magnet) and back yokes (first magnetic back yoke and second magnetic back yoke). The back yokes are each provided one to one for an associated one of the drive magnets. The associated one of the drive magnets is attached to each of the back yokes. The back yokes include at least one pair of back yokes facing each other with respect to an optical axis. Each of the at least one pair of back yokes includes a base and a yoke protrusion. An associated one of the drive magnets is attached to the base. The yoke protrusion is coupled to the base and arranged to face at least one out of two ends of the associated drive magnet in a rolling direction of a movable holder.

公开(公告)号：US20190379266A1

公开(公告)日：2019-12-12

申请号：US16088426

申请日：2017-03-21

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Teruyuki TAKIZAWA ,  Hironori TOMITA ,  Tsutomu SHIMOMURA ,  Masakazu KOBAYASHI ,  Yasuaki KAMEYAMA ,  Hirohide ICHIHASHI

IPC: H02K41/035 ,  G03B17/56 ,  H02K3/46 ,  H02K11/215

Abstract: In an actuator (camera driver) according to the present invention, when a movable unit is in a neutral position in which the movable unit has rotated around neither an axis nor an axis, a first synthetic vector and a second synthetic vector are directed toward an object to be driven with respect to a plane including the both axes. The first synthetic vector is defined by synthesizing together two first vectors, pointing toward a pair of magnetic yokes, of magnetic attraction forces between a pair of first driving magnets and the pair of magnetic yokes. The second synthetic vector is defined by synthesizing together two second vectors, pointing toward a pair of magnetic yokes, of magnetic attraction forces between a pair of second driving magnets and the pair of magnetic yokes.

公开(公告)号：US20210165183A1

公开(公告)日：2021-06-03

申请号：US16759267

申请日：2018-09-21

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Yasuaki KAMEYAMA ,  Hironori TOMITA ,  Masahiro INATA ,  Katsunobu SUZUKI

IPC: G02B7/02 ,  G02B27/64 ,  G03B5/00 ,  G03B30/00 ,  H04N5/225

Abstract: An actuator includes: a movable unit to hold an object to be driven; a fixed unit to support the movable unit thereon to make the movable unit rotatable; and a structure for supporting the movable unit with respect to the fixed unit. The structure includes: a sphere; and a pair of holding members to clamp the sphere between themselves. A space is left to let the sphere roll while shifting a center position thereof with respect to at least one of the pair of holding members.