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公开(公告)号：US10281800B2
公开(公告)日：2019-05-07
申请号：US15634235
申请日：2017-06-27
Applicant: SEIKO Precision Inc.
Inventor： Yoichi Nakano
Abstract: There is provided a blade drive device including a substrate that has an opening, a front curtain and a rear curtain that are movable along an opening surface of the opening so as to open and close the opening, a front curtain locking portion that interlocks with opening and closing operations of the front curtain, a rear curtain locking portion that interlocks with opening and closing operations of the rear curtain, and a regulation lever that is configured to be pivotally movable around a lever axis, and that is capable of entry and escape between an entry position which enters each operation trajectory of the front curtain locking portion and the rear curtain locking portion in response to the opening and closing operations of the front curtain and the rear curtain and an escape position escaped from the operation trajectory. The regulation lever has a front curtain regulation portion which can be locked by the front curtain locking portion from one side around the lever axis at the entry position so as to regulate movement of the front curtain in a closing direction, and a rear curtain regulation portion which can be locked by the rear curtain locking portion from the other side around the lever axis at the entry position so as to regulate movement of the rear curtain in a closing direction.
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公开(公告)号：US20180347682A1
公开(公告)日：2018-12-06
申请号：US15992581
申请日：2018-05-30
Applicant: SEIKO Precision Inc.
Inventor： Koichi MASUZAWA , Kenichi KUDO
IPC: F16H57/021 , F16H1/06 , F16H57/023 , F16H1/20
Abstract: A gear box includes a casing having a partition portion, a supporting shaft fixed to the partition portion, and an output shaft supported so as to be rotatable around the supporting shaft and to which a pinion gear is fixed. The casing has a division wall that is positioned in the −Z direction with respect to the partition portion and is capable of abutting against the supporting shaft. The division wall constitutes a portion of a motor accommodation portion for accommodating a motor.
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公开(公告)号：US20180347681A1
公开(公告)日：2018-12-06
申请号：US15992555
申请日：2018-05-30
Applicant: SEIKO Precision Inc.
Inventor： Koichi MASUZAWA , Kenichi KUDO
IPC: F16H57/021 , F16H1/22 , F16H57/023
Abstract: A gear box includes a casing, a gear that is accommodated in the casing and transmits the power of a motor, an output gear that is connected to the gear in the casing, and a collar that is externally inserted to the output shaft of the output gear and is rotatable relative to both the output shaft and the casing.
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公开(公告)号：US09658516B2
公开(公告)日：2017-05-23
申请号：US14976816
申请日：2015-12-21
Applicant: SEIKO Precision Inc.
Inventor： Seiichi Oishi , Shoichi Tokura
IPC: G03B9/40
CPC classification number: G03B9/40
Abstract: To provide a blade drive device capable of suppressing the increase in number of components while suppressing the bounding of blades, and an optical apparatus including the blade drive device. A blade drive device 10 includes a partition plate 21 having an opening 22, blades 31a to 34a, 31b to 34b which are expanded in a state where the opening 22 is closed and which overlap one another in a state where the opening 22 is opened, and a first regulating portion 23A and a second regulating portion 24A integrally formed with the partition plate 21, on which the blades 31a, 31b abut when being expanded. An optical apparatus includes the blade drive device 10.
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公开(公告)号：US09658515B2
公开(公告)日：2017-05-23
申请号：US14944719
申请日：2015-11-18
Applicant: SEIKO Precision Inc.
Inventor： Takashi Nakano , Penjan Worapong
IPC: G03B9/06
CPC classification number: G03B9/06
Abstract: A diaphragm device of the present invention includes: a base plate having an aperture portion; a blade being supported by the base plate to be able to open and close the aperture portion; a drive ring being formed so as to surround the perimeter of the aperture portion, the drive ring being configured to drive the blade to open and close; a supporting pin pivotably supporting the blade being provided on the drive ring; and an engaging pin engaging with the blade and causing the blade to open or close in conjunction with the drive ring and the supporting pin, the engaging pin being provided on the base plate on an inner side of the supporting pin in the radial direction of the drive ring.
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Patent Agency Ranking
公开(公告)号：US20170131619A1
公开(公告)日：2017-05-11
申请号：US15287060
申请日：2016-10-06
Applicant: SEIKO Precision Inc.
Inventor： Shoichi TOKURA
IPC: G03B9/32
CPC classification number: G03B9/42
Abstract: A focal-plane shutter capable of stabilizing a curtain in continuous photographing action for suppression of variation in light exposure period is provided. The focal-plane shutter includes a base plate having a first opening, a blade receiving plate so arranged as to face the base plate and having a second opening formed in a position corresponding to the first opening, and a rear curtain that is arranged between the base plate and the blade receiving plate and moves between an open position where the first opening and the second opening are open and a closed position where the first opening and the second opening are closed to open and close the first opening and the second opening. The blade receiving plate has a protruding section in a position where the blade receiving plate overlaps with the rear curtain located in the open position when viewed along the optical axis direction, and the protruding section so protrudes toward the rear curtain as to allow the rear curtain to come into contact with the protruding section.
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公开(公告)号：US20170052428A1
公开(公告)日：2017-02-23
申请号：US15227478
申请日：2016-08-03
Applicant: SEIKO Precision Inc.
Inventor： Shoichi TOKURA , Seiichi OISHI
CPC classification number: G03B9/40 , G02B27/0006
Abstract: A focal-plane shutter capable of suppressing production of foreign matter is provided. The focal-plane shutter includes a base plate, rear curtain drive arms, a blade that is driven by the rear curtain drive arms, and an elastically deformable cushioning member that comes into contact with the blade that moves from a retracted position to an unfolded position. The blade extends in a first direction. The rear curtain drive arms are swingable around the centers of swing motion provided on one side of the blade in the first direction. The cushioning member has a contact section that comes into contact with a side edge of the blade, a holding section that is arranged on the side opposite the blade with the contact section therebetween, and a connecting section that connects the contact section and the holding section to each other. The connecting section inclines with respect to a second direction perpendicular to the first direction and extends toward the centers of swing motion.
Abstract translation: 提供了能够抑制异物产生的焦平面快门。 焦平面快门包括基板，后帘驱动臂，由后帘驱动臂驱动的叶片，以及可弹性变形的缓冲构件，其与从缩回位置移动到展开位置的叶片接触 。 叶片沿第一方向延伸。 后帘驱动臂可绕第一方向在叶片一侧提供的摆动中心摆动。 所述缓冲部件具有与所述刀片的侧缘接触的接触部，与所述刀片的与所述刀片相对的一侧配置的保持部，以及连接所述接触部和所述保持部的连接部 对彼此。 连接部分相对于垂直于第一方向的第二方向倾斜并朝向摆动中心延伸。
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公开(公告)号：US20170045801A1
公开(公告)日：2017-02-16
申请号：US15221145
申请日：2016-07-27
Applicant: SEIKO Precision Inc.
Inventor： Seiichi OISHI , Shoichi TOKURA
IPC: G03B9/36
Abstract: A focal-plane shutter capable of preventing deterioration of the quality of a captured image is provided. A focal-plane shutter includes a base plate having an opening, a rear curtain that moves between an open position where the opening is open and a closed position where the opening is closed to allow the opening to be open and closed, and a first cushioning member that comes into contact with the rear curtain, and the rear curtain has a first protrusion that is located outside the opening, protrudes in a first direction from the open position toward the closed position, and comes into contact with the first cushioning member when the rear curtain moves from the open position to the closed position.
Abstract translation: 提供一种能够防止拍摄图像的质量劣化的焦平面快门。 焦平面快门包括具有开口的基板，在所述开口打开的打开位置和所述开口闭合的关闭位置之间移动以允许所述开口打开和关闭的后帘，以及第一缓冲 与后帘接触的构件，后帘具有位于开口外侧的第一突起，从打开位置朝向关闭位置从第一方向突出，并且当第一缓冲构件与第一缓冲构件接触时， 后帘从打开位置移动到关闭位置。
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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：US09395598B2
公开(公告)日：2016-07-19
申请号：US14325716
申请日：2014-07-08
Applicant: SEIKO PRECISION INC.
Inventor： Hiroshi Takahashi , Minori Murata , Seiichi Oishi , Mitsuru Suzuki
Abstract: A focal plane shutter includes: a board including an opening; a leading shutter and a trailing shutter opening and closing the opening; first and second biasing members respectively biasing the leading shutter and the trailing shutter to move away from the opening; a first actuator causing the leading shutter to move from a position to close the opening to a position to recede from the opening while the leading shutter is assisted by a biasing force of the first biasing member in an exposure operation; and a second actuator causing the trailing shutter to move from a position to recede from the opening to a position to close the opening against a biasing force of the second biasing member in the exposure operation, wherein drive torque of the first actuator is smaller than that of the second actuator.
Abstract translation: 焦平面快门包括：包括开口的板; 前挡板和后挡板打开和关闭开口; 第一和第二偏置构件分别偏压前挡板和后挡板以远离开口移动; 所述第一致动器使得所述前挡板从位置移动以将所述开口闭合到从所述开口退出的位置，同时在所述曝光操作中所述第一偏压构件的偏置力辅助所述前挡板; 以及第二致动器，其使所述后挡板从所述开口的位置移动到抵抗所述第二偏压构件在所述曝光操作中的偏压力而关闭所述开口的位置，其中所述第一致动器的驱动转矩小于 的第二致动器。
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