Nidec Sankyo Corporation

Nidec Corporation

Samsung Electronics Co., Ltd.

Samsung Techwin Co., Ltd.

Nidec Instruments Corporation

Takeshi Sue

Shinji Minamisawa

Tsutomu Arai

Tadashi Takeda

Masato Gomyo

Daisuke Higuchi

Yuichi Takei

Tomohiro Egawa

Takayuki Iwase

Shogo Kasahara

Genki Tanaka

Kazuhiro Sazai

Yukio Furuya

Hiroshi Kitahara

Noboru Otsuki

Tatsuki Wade

Hiromitsu Takei

Shinji Hatano

Shinroku Asakawa

Hyungjin Rho

Toshiyuki Karasawa

Kazuhiko Yanagisawa

Chanyoung Moon

Doukyoung Song

Yoshihiro Hamada

Jun Yamashita

Akihito Wada

Makoto Akabane

Ryoji Komatsu

Hongbum Park

Yuji Shingu

Noboru Ootsuki

Syusuke Imai

Jaegyeong Suh

An optical unit comprises a movable body, a fixed body, a rotation support mechanism, and a gimbal mechanism, in which the movable body has a first side surface, a second side surface, a third side surface, and a fourth side surface as movable-body side surfaces, the first side surface positioning on an opposite side to the third side surface, and the second side surface positioning on an opposite side to the fourth side surface, a flexible printed circuit board is connected to the movable body on the first side surface side, has clearances provided with respect to the movable-body side surface, and has side-surface facing regions facing the movable-body side surface, and the side-surface facing regions are arranged to face the first side surface and the second side surface but not to face the third side surface and the fourth side surface.

Optical unit

An optical unit with a runout correction function includes a reflection member, a camera module having a lens and an image pickup element, a holding member that rotatably holds the reflection member and also holds the camera module, and a fixing member that rotatably holds the holding member. A second rotation mechanism rotates the reflection member held in the holding member with an optical axis direction, which is a direction of an optical axis of the lens, as an axis direction of the rotation and is capable of runout correction in a yaw direction. In the optical unit with a runout correction function, when the runout correction in the yaw direction is performed, the image pickup element held in the holding member is rotated together with the reflection member with the optical axis direction as the axis direction of rotation.

Optical unit with runout correction function

In an optical unit with a shake correction function, a cylindrical holder having an inner peripheral side on which a camera module is fixed is composed of metal. In the optical unit with a shake correction function, a case-side protrusion projecting toward the inner peripheral side of a cylindrical case surrounding the outer peripheral surface of the holder is formed on the inner peripheral side of the case. When a movable body moves relative to a fixed body while the optical axis of a camera module tilts the most, portions of the holder farther inside in the optical axis direction than edges formed on the outer peripheral surface of the holder before the edges come into contact with the inner peripheral surface of the case.

Optical unit with shake correction function

An optical unit includes: a reflective portion that reflects, on a reflective surface, an incident light flux incident from the outside in a reflection direction toward an imaging element from an incident direction; a movable body to which the reflective portion is fixed; and a fixed body. In the movable body, emboss processing is applied to at least one of a reflective surface contact surface in contact with the reflective surface, and a side surface contact surface in contact with a side surface of the reflective portion on a side of an intersecting direction intersecting with the incident direction and the reflection direction.

A drive device is provided and includes: a movable body including an attachment part, to which an optical module is attached; a fixed body; and a support part rotatably supporting the movable body about an optical axis of the optical module attached to the attachment part with respect to the fixed body. The movable body includes a movable body-side fixing part, to which a flexible printed circuit pulled out of the optical module is fixed. The fixed body includes a fixed body-side fixing part, to which the flexible printed circuit is fixed. And, a portion between the movable body-side fixing part and the fixed body-side fixing part in a region along an outer periphery of the fixed body is set as a region drawn around in an attitude causing a thickness direction of the flexible printed circuit to be directions both orthogonal to a direction of the optical axis.

Drive device and optical unit

A case includes a movable body to which an optical module having a first flexible wiring board is to be attached, a fixed body, and a second flexible wiring board with which the first flexible wiring board is to be connected. The movable body is swingably held by the fixed body, and the second flexible wiring board is structured to be resiliently bent easier than the first flexible wiring board.

Case and optical unit

An optical unit includes: a reflection portion which reflects an incident light flux from an incident direction on the outside in a reflection direction toward an imaging element; a movable body including the reflection portion; a fixed body; a movable mechanism which allows the movable body to move relative to the fixed body; and a gimbal mechanism including a first support portion which supports the movable body swingably about a first axis, and including a second support portion which is swingably supported by the fixed body about a second axis intersecting the first axis direction.

In an optical unit with a shake correction function, a frame-shaped holder to which a camera module is fixed to an inner periphery being structured of a metal portion formed of a metal material, and a resin portion formed of a resin material and integrated with the metal portion by insert molding. The metal portion includes magnet fixing portions formed of a magnetic material and to which a driving magnet is fixed, and spherical body contact portions in contact with a spherical body made of metal and serving as a fulcrum for pivotal movement of the holder.

In an optical unit with a shake correction function, a first circuit board, which is pulled out from a camera module, and a second circuit board, on which a first drive coil and a second drive coil are mounted, are electrically connected by a first connection portion and a second connection portion, which are electrically connected while overlapping each other. Moreover, in the optical unit with a shake correction function, a drawer portion of the first circuit board is pulled out toward an outer peripheral side of the optical unit with a shake correction function.

An optical unit with a shake correction function includes a movable module and a fixed body. The movable module has a lens and is supported by the fixed body to be capable of moving in a direction orthogonal to an optical axis of the lens. The fixed body surrounds the movable module from an outer periphery side. The movable module includes a first substrate and a second substrate, with a thickness direction of either substrate being consistent with the direction along the optical axis. An image sensor is disposed on the first substrate. The second substrate is electrically connected to the first substrate to overlap the first substrate on an image side, and is smaller in shape than the first substrate when viewed along the optical axis of the lens. A flexible printed circuit board is led out from an outer circumferential surface of the second substrate.

Optical unit with shake correction function and portable device comprising optical unit

An optical unit includes a movable body, a fixed body surrounding the movable body, a turning support mechanism turnably supporting the movable body with respect to the fixed body, and a drive mechanism including a coil disposed on the movable body or the fixed body, and multiple magnets disposed on the other of the movable body and the fixed body at a position facing the coil. An end part in an optical axis direction of the coil is bent in a direction approaching a turning axis of the movable body, and the magnets are disposed side by side so that faces of the magnets facing the coil become approximately parallel to the coil when viewed in a direction of the turning axis in comparison with a case that the magnets are arranged along the optical axis direction.

An optical unit including a reflection portion, a movable body, a fixed body; and a rotation support mechanism that rotates the movable body with respect to the fixed body in an axial direction as a rotation axis, in which the rotation support mechanism has a U-shaped spring member disposed between the fixed body and the movable body in the axial direction and applies a force in a direction that widens the space between the fixed body and the movable body, the spring member has a rotation-axis first forming member, the movable body has a rotation-axis second forming member, and the rotation-axis first forming member and the rotation-axis second forming member are arranged at positions where a rotation axis passes through a center of gravity position of the movable body.

In an optical unit with a shake correction function, a first inner-side wall surface disposed on an inner side of a first band-shaped portion of a circuit board in a Y-direction and a second inner-side wall surface disposed on an inner side of a second band-shaped portion of the circuit board in an X-direction are defined in an intermediate-member holder, and a first outer-side wall surface disposed on an outer side of the first band-shaped portion in the Y-direction and a second outer-side wall surface disposed on an outer side of the second band-shaped portion in the X-direction are defined on an outer-peripheral side covering portion. An interval between the first inner-side wall surface and the first outer-side wall surface is smaller than an interval between the second inner-side wall surface and the second outer-side wall surface.

In a unit with shake correction function, a driving magnet and a driving coil which constitute a rolling drive mechanism are arranged on an outer side of a radial direction with respect to a disposition space for an optical module that is provided in a movable body. Therefore, since there is no need to arrange the disposition space and the rolling drive mechanism to be deviated from each other in an optical axis direction, it is possible to make the unit with shake correction function thin in the optical axis direction. Further, in the rolling drive mechanism, since the driving magnet and the driving coil face each other in the optical axis direction, a magnetic field of the rolling drive mechanism does not easily enter the disposition space for the optical module. Consequently, magnetic interference between the movable body and the rolling drive mechanism can be suppressed.

Unit with shake correction function

An optical unit according to one embodiment including: a reflection portion which reflects an incident light flux, which is made incident from outside, in a reflection direction toward an imaging element from an incident direction; a movable body provided with the reflection portion; a fixed body; a movable mechanism which allows the movable body to move relative to the fixed body; a gimbal mechanism provided with a first support portion which supports the movable body swingably about a first axis; and a bearing mechanism which supports the gimbal mechanism swingably relative to the fixed body about a second axis intersecting the first axis direction.

Growing community of inventors

Nagano, Japan

Takeshi Sue