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公开(公告)号：US09477137B2
公开(公告)日：2016-10-25
申请号：US15050927
申请日：2016-02-23
Applicant: SEIKO Precision Inc.
Inventor： Masami Yamamoto , Koichi Masuzawa
Abstract: To provide a blade drive device capable of suppressing operation failures due to the leakage flux. The blade drive device 1 attached to a camera module including a lens and a lens drive device 60 having plural permanent magnets 61 arranged with gaps around an optical axis P of the lens in an annular manner so as to overlap the camera module in an axial direction of the optical axis P, which includes a lower plate 2 having an opening 4 formed around the optical axis P, blades 20 regulating the opening 4 and respective actuators 10A, 10B arranged in the lower plate 2 and driving the blades 20. Each of respective actuators 10A, 10B is arranged in a position corresponding to a gap between a pair of adjacent permanent magnets 61 seen from the axial direction.
Abstract translation: 提供一种能够抑制由漏电流引起的动作故障的叶片驱动装置。 刀片驱动装置1安装在包括透镜的照相机模块和透镜驱动装置60上，透镜驱动装置60具有多个永久磁铁61，该多个永久磁铁61围绕透镜的光轴P以环形方式间隔开，从而在照相机模块的轴向上重叠 光轴P包括具有围绕光轴P形成的开口4的下板2，调节开口4的叶片20和布置在下板2中并驱动叶片20的各个致动器10A，10B。各自的 致动器10A，10B布置在与从轴向方向看的一对相邻永磁体61之间的间隙对应的位置。
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公开(公告)号：US09742256B2
公开(公告)日：2017-08-22
申请号：US14732166
申请日：2015-06-05
Applicant: SEIKO Precision Inc.
Inventor： Koichi Masuzawa , Kenichi Kudo
CPC classification number: H02K37/14 , H02K1/145 , H02K1/185 , H02K5/1672
Abstract: To provide an actuator in which an unstable movement of a rotor is controlled. An actuator includes a coil, a bobbin around which the coil is wound, a rotor positioned inside the bobbin, a shaft to which the rotor is fixed and which is rotatably supported, a stator including a base portion positioned on one end side of the shaft, outer magnetic pole portions extending from the base portion along the shaft and positioned outside the bobbin and inner magnetic pole portions extending from the base portion along the shaft and positioned between the rotor and the inside of the bobbin, a stator including a base portion positioned on the other end side of the shaft, outer magnetic pole portions extending from the base portion along the shaft and positioned outside the bobbin and inner magnetic pole portions extending from the base portion along the shaft and positioned between the rotor and the inside of the bobbin and a cover positioned between the rotor and the stator and contacting tip portions of the inner magnetic pole portions to regulate the approach of the inner magnetic pole portions to the rotor.
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公开(公告)号：US09906699B2
公开(公告)日：2018-02-27
申请号：US15242999
申请日：2016-08-22
Applicant: SEIKO Precision Inc.
Inventor： Koichi Masuzawa , Kenichi Kudo
CPC classification number: H04N5/2257 , G03B9/02 , G03B9/14
Abstract: To provide a blade drive device that may prevent malfunction of blades. A blade drive device includes a base plate having an opening to be opened and closed by a blade on an optical axis, and a flexible substrate having joint portions to which conductor wires of a first actuator and a second actuator that drive the blades are joined, the flexible substrate being provided between the base plate and the blades on one side of the base plate in an axis direction of the optical axis. The base plate is provided with a substrate housing part in which at least a part of the flexible substrate is housed and to which a covering material for covering the joint portions is applied. The substrate housing part is provided with wall surface extending from the other side toward the one side in the axis direction of the optical axis. The wall surface is provided with corner portions extending along a direction crossing the axis direction of the optical axis. The corner portions are provided between the blades and the flexible substrate in the axis direction of the optical axis.
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