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公开(公告)号：US09612505B2
公开(公告)日：2017-04-04
申请号：US15221145
申请日：2016-07-27
Applicant: SEIKO Precision Inc.
Inventor： Seiichi Oishi , Shoichi Tokura
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.
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公开(公告)号：US09606421B2
公开(公告)日：2017-03-28
申请号：US15088589
申请日：2016-04-01
Applicant: SEIKO PRECISION INC.
Inventor： Seiichi Oishi , Hiroshi Takahashi , Shoichi Tokura
Abstract: A focal-plane shutter includes: a board including an opening; a shutter opening and closing the opening; a drive lever provided with a drive pin and swinging; a drive arm provided with an engagement hole engaged with the drive pin, swinging about a center same as a swing center of the drive lever, driving the shutter, and made of a synthetic resin; and a restriction portion defining a swinging range of the drive lever.
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公开(公告)号：US09733547B2
公开(公告)日：2017-08-15
申请号：US15067501
申请日：2016-03-11
Applicant: SEIKO PRECISION INC.
Inventor： Shoichi Tokura , Hiroshi Takahashi , Seiichi Oishi , Minori Murata
CPC classification number: G03B9/14 , G03B9/36 , G03B9/40 , H04N5/2254
Abstract: A blade driving device includes: a board including an opening; first and second blades opening and closing the opening; first and second actuators arranged adjacent to each other and respectively driving the first and second blades, and respectively including first and second stators, first and second rotors, and first and second coils; a printed circuit board; and solder portions electrically connecting the first and second coils with the printed circuit board; wherein the solder portions includes: first and second solder portions respectively connecting one end and another end of the first coil with the printed circuit board; and third and fourth solder portions respectively connecting one end and another end of the second coil with the printed circuit board; and the first, second, third, and fourth solder portions face one another.
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公开(公告)号：US09671678B2
公开(公告)日：2017-06-06
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.
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公开(公告)号：US09513533B2
公开(公告)日：2016-12-06
申请号：US14277322
申请日：2014-05-14
Applicant: SEIKO PRECISION INC.
Inventor： Hiroshi Takahashi , Minori Murata , Seiichi Oishi , Mitsuru Suzuki , Shoichi Tokura
Abstract: A focal plane shutter includes: a board including an opening; a leading blade and a trailing blade opening and closing the opening; a trailing blade actuator driving the trailing blade; a drive member driving the trailing blade by receiving driving force of the trailing blade actuator; and a buffering member abutting with the drive member in a state where the trailing blade recedes away from the opening, wherein the trailing blade actuator causes the drive member to move away from the buffering member from an abutting state therewith and to abut therewith again in a charging operation, and then starts an exposure operation.
Abstract translation: 焦面快门包括：包括开口的板; 前刀片和后刀片，打开和关闭开口; 后叶片致动器驱动后叶片; 驱动构件，其通过接收所述后叶片致动器的驱动力来驱动所述后叶片; 以及缓冲构件，其在所述后叶片从所述开口离开的状态下与所述驱动构件抵接，其中所述后叶片致动器使所述驱动构件从所述缓冲构件与其抵接状态移动并且再次抵靠所述缓冲构件 充电操作，然后开始曝光操作。
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Patent Agency Ranking
公开(公告)号：US09465275B2
公开(公告)日：2016-10-11
申请号：US14695568
申请日：2015-04-24
Applicant: SEIKO PRECISION INC.
Inventor： Hiroshi Takahashi , Minori Murata , Seiichi Oishi , Shoichi Tokura
CPC classification number: G03B9/40 , G03B9/08 , G03B9/42 , H04N5/2254 , H04N5/2353
Abstract: An imaging device includes: a focal plane shutter including: a board including an opening; a leading shutter and a trailing shutter opening and closing the opening; a leading shutter actuator and a trailing shutter actuator respectively driving the leading shutter and the trailing shutter; and a restrict portion that restricts reciprocating movement ranges of the leading shutter and the trailing shutter, an image pickup element which light enters through the opening; and a drive control portion.
Abstract translation: 一种成像装置，包括：焦平面快门，其包括：包括开口的板; 前挡板和后挡板打开和关闭开口; 分别驱动前挡板和后挡板的前挡板致动器和后挡板致动器; 以及限制部分，其限制所述前挡板和所述后挡板的往复运动范围，所述光进入所述开口的图像拾取元件; 和驱动控制部。
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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：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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公开(公告)号：US09069231B2
公开(公告)日：2015-06-30
申请号：US14291717
申请日：2014-05-30
Applicant: SEIKO PRECISION INC.
Inventor： Seiichi Oishi , Minori Murata , Hiroshi Takahashi , Shoichi Tokura
CPC classification number: G03B9/40
Abstract: A focal plane shutter includes: a board including an opening; a shutter opening and closing the opening; a drive source driving the shutter; a drive lever driven by the drive source; a drive arm connected to the drive lever and driving the shutter; a restriction portion defining a stop position of the drive lever; and a buffering member elastically deformable, wherein, when the drive lever drives, abuts the restriction portion, and stops, at least one of the drive arm and the shutter temporarily abuts the buffering member, is spaced from the buffering member, and stops.
Abstract translation: 焦平面快门包括：包括开口的板; 打开和关闭开口的快门; 驱动快门的驱动源; 由驱动源驱动的驱动杆; 连接到所述驱动杆并驱动所述活门的驱动臂; 限定部分限定驱动杆的停止位置; 以及可弹性变形的缓冲构件，其中，当所述驱动杆驱动时，抵靠所述限制部并停止，所述驱动臂和所述闸板中的至少一个暂时抵靠所述缓冲构件，与所述缓冲构件间隔开并停止。
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公开(公告)号：US08882370B2
公开(公告)日：2014-11-11
申请号：US14175280
申请日：2014-02-07
Applicant: Seiko Precision Inc.
Inventor： Seiichi Oishi , Shoichi Tokura
IPC: G03B9/08
CPC classification number: G03B9/36
Abstract: A focal plane shutter includes: a board including an opening; a blade opening or closing the opening; an electromagnet including an iron core and a coil for energizing the iron core; and a drive lever holding an iron piece capable of being adsorbed to the iron core, capable of moving such that iron piece is moved into and away from the iron core, and driving the blade, wherein a plating process is performed on the iron core and the iron piece, a Vickers hardness of a plating of the iron piece is greater than that of a plating of the iron core, and a difference in the Vickers hardness between the plating of the iron piece and the plating of the iron core is 100 HV or more.
Abstract translation: 焦平面快门包括：包括开口的板; 打开或关闭开口的刀片; 包括铁芯和用于激励铁芯的线圈的电磁体; 以及驱动杆，其保持能够被吸附到铁芯上的铁片，能够移动以使铁片移入和离开铁芯，并驱动该刀片，其中对铁芯进行电镀处理， 铁片，铁片的电镀的维氏硬度大于铁芯电镀的维氏硬度，铁片的镀层与铁芯的镀层之间的维氏硬度差为100HV 或者更多。
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