公开(公告)号：US06485200B2

公开(公告)日：2002-11-26

申请号：US09817075

申请日：2001-03-26

申请人： Miyoshi Tanikawa ,  Yoichi Nakano ,  Hiroshi Takahashi

发明人： Miyoshi Tanikawa ,  Yoichi Nakano ,  Hiroshi Takahashi

IPC分类号： G03B940

CPC分类号： G03B9/18

摘要： A double-shielding type focal-plane shutter has a closing blade and an opening blade for closing and opening a shutter opening to perform an exposure operation. A closing lever and an opening lever drive the closing blade and the opening blade, respectively. The closing lever has a first closing lever and a second closing lever supported coaxial with each other for undergoing pivotal movement. The second closing lever has a drive portion at a first end thereof for driving the closing blade and an engagement portion at a second end thereof. A lock lever restricts movement of the closing lever. The lock lever has a first mating engagement portion for engaging the engagement portion of the second closing lever in the predetermined position of the closing lever, and a second mating engagement portion for engaging the engagement portion of the second closing lever short of the predetermined position thereof. A set lever undergoes movement to a set position to set the closing lever, the opening lever and the lock lever to predetermined positions.

摘要翻译： 双屏蔽型焦平面快门具有闭合叶片和用于关闭和打开快门开口以进行曝光操作的开口叶片。 关闭杆和打开杆分别驱动闭合叶片和开口叶片。 关闭杆具有彼此同轴地支撑以进行枢转运动的第一闭合杆和第二闭合杆。 第二关闭杆在其第一端具有用于驱动闭合叶片的驱动部分和在其第二端处的接合部分。 锁定杆限制关闭杆的移动。 所述锁定杆具有第一配合接合部，用于在所述关闭杆的预定位置中接合所述第二关闭杆的接合部，以及用于接合所述第二闭合杆的接合部分的第二配合接合部分， 。 设定杆经过移动到设定位置以将关闭杆，打开杆和锁定杆设置到预定位置。

公开(公告)号：US06490416B1

公开(公告)日：2002-12-03

申请号：US09854974

申请日：2001-05-14

申请人： Yoichi Nakano ,  Akira Ito ,  Miyoshi Tanikawa ,  Chiaki Nemoto

发明人： Yoichi Nakano ,  Akira Ito ,  Miyoshi Tanikawa ,  Chiaki Nemoto

IPC分类号： G03B970

CPC分类号： G03B9/70

摘要： A focal plane shutter for a camera has a synchronous contact member that produces less chattering than conventional synchronous contact members. One end of an opening electromagnet and one end of a closing electromagnet are separately connected to the higher-potential side of a power supply for a CPU in the camera, and the other ends of the electromagnets are grounded. An output circuit has an inverter circuit made up of a transistor and two resistors. A driver voltage for energizing the closing electromagnet is applied to the base of the transistor via a first resistor. The collector of the transistor is connected to the higher-potential side of the power supply via a second resistor. The emitter of the transistor is connected to the lower-potential side of the power supply. First and second voltage signals are produced from an output terminal on the side of the collector. One end of the synchronous contact member is connected to the lower-potential side of the power supply and the other end thereof is connected to the base of the transistor.

摘要翻译： 用于相机的焦平面快门具有同步接触构件，其产生比常规同步接触构件更少的颤振。 打开电磁体的一端和关闭电磁体的一端分别连接到照相机中用于CPU的电源的较高电位侧，并且电磁体的另一端接地。 输出电路具有由晶体管和两个电阻构成的反相器电路。 用于激励闭合电磁体的驱动电压经由第一电阻器施加到晶体管的基极。 晶体管的集电极通过第二电阻器连接到电源的高电位侧。 晶体管的发射极连接到电源的低电位侧。 从收集器侧的输出端产生第一和第二电压信号。 同步接触构件的一端连接到电源的低电位侧，另一端连接到晶体管的基极。

公开(公告)号：US20120087646A1

公开(公告)日：2012-04-12

申请号：US13311940

申请日：2011-12-06

申请人： Hiroshi TAKAHASHI ,  Yoichi Nakano

发明人： Hiroshi TAKAHASHI ,  Yoichi Nakano

IPC分类号： G03B9/08

CPC分类号： G03B9/36

摘要： A focal plane shutter includes: an electromagnet; a board including an opening; blades capable of opening and closing the opening; a drive member holding an iron piece adsorbed to the electromagnet and driving the blades, the drive member being movable such that the iron piece moves toward and away from the electromagnet and being biased by a spring such that the iron piece moves away from the electromagnet; and a holding board facing the board and including a pair of sandwiching portions elastically deformable and holding and sandwiching the electromagnet. The electromagnet includes a restriction portion engaging the board and restricting a movement of the electromagnet in a direction where the iron piece moves away from the electromagnet.

摘要翻译： 焦平面快门包括：电磁体; 包括开口的董事会; 能够打开和关闭开口的叶片; 保持吸附在电磁铁上并驱动刀片的铁件的驱动件，驱动件可移动以使铁件朝向和远离电磁铁移动并被弹簧偏压使得铁件远离电磁铁移动; 以及保持板，所述保持板面向所述板，并且包括可弹性变形并保持和夹持所述电磁体的一对夹持部。 电磁铁包括限制部分，其接合板并且限制电磁体沿着铁片远离电磁体移动的方向的移动。

公开(公告)号：US08376635B2

公开(公告)日：2013-02-19

申请号：US13421095

申请日：2012-03-15

申请人： Hiroshi Takahashi ,  Yoichi Nakano

发明人： Hiroshi Takahashi ,  Yoichi Nakano

IPC分类号： G03B9/10

CPC分类号： G03B9/36

摘要： A focal plane shutter includes: a board including an opening; blades capable of opening and closing the opening; a drive member movable between a start position and a terminal position, biased toward the terminal position, and driving the blades; a brake member supported to abut and move away from the drive member positioned at the terminal position, and biased to abut the drive member positioned at the terminal position; and a set member rotatable in only one direction, and moving the drive member from the terminal position to the start position; wherein the set member includes a drive portion abutting the brake member to move the brake member away from the drive member and then abutting the drive member to move the drive member toward the start position.

摘要翻译： 焦平面快门包括：包括开口的板; 能够打开和关闭开口的叶片; 驱动构件，其在开始位置和终端位置之间移动，朝向终端位置偏置，并且驱动所述叶片; 制动构件，其被支撑成抵靠并远离位于所述终端位置的所述驱动构件移动，并被偏压以抵靠位于所述终端位置的所述驱动构件; 以及一组可在一个方向上旋转的组件，并将驱动件从终端位置移动到起始位置; 其中，所述固定构件包括抵靠所述制动构件的驱动部，以使所述制动构件远离所述驱动构件，然后抵靠所述驱动构件，以将所述驱动构件朝向所述起始位置移动。

公开(公告)号：US20060062100A1

公开(公告)日：2006-03-23

申请号：US11205900

申请日：2005-08-16

申请人： Hiroshi Takahashi ,  Yoichi Nakano ,  Kenichi Kudou ,  Masao Fujiwara

发明人： Hiroshi Takahashi ,  Yoichi Nakano ,  Kenichi Kudou ,  Masao Fujiwara

IPC分类号： G11B7/00

CPC分类号： H04N5/2254

摘要： There is provided an image pickup apparatus having an image pickup unit having an image pickup element, an optical unit having lenses, a sector drive unit having sectors arranged in a space for arranging the sectors, and supporting members being fixed in the space for arranging the sectors and having lengths equal to at least a width of the space for arranging the sectors in a light axis direction.

公开(公告)号：US08553309B2

公开(公告)日：2013-10-08

申请号：US13010201

申请日：2011-01-20

申请人： Yoichi Nakano ,  Hiroshi Takahashi

发明人： Yoichi Nakano ,  Hiroshi Takahashi

IPC分类号： G02B26/02

CPC分类号： G03B9/36

摘要： A blade speed adjustable mechanism includes: a board having an opening; a shutter blade opening or closing the opening; a drive lever supported by the board and bringing the shutter blade into an overlapped operation or an expanded operation; a biasing member engaging the drive lever and biasing the shutter blade in an overlapped direction or in an expanded direction; a ratchet member engaging the biasing member and having ratchet teeth; an engagement member holding the ratchet member at a desired stop position and adjusting an biasing force of the biasing member by changing the stop position. The engagement member has a plurality of pawl portions different from each other in length. The pawl portion engages the ratchet tooth to hold the ratchet member at the stop position. A difference in length between the pawl portions is shorter than a distance corresponding to a pitch of the ratchet teeth.

摘要翻译： 叶片速度调节机构包括：具有开口的板; 打开或关闭开口的快门叶片; 由所述板支撑并将所述快门叶片进行重叠操作或扩大操作的驱动杆; 偏压构件，其接合所述驱动杆并且在重叠的方向或沿着扩展的方向偏置所述快门叶片; 与所述偏置构件接合并具有棘齿的棘轮构件; 将所述棘轮构件保持在期望的停止位置并通过改变所述停止位置来调节所述偏置构件的偏置力的接合构件。 接合构件具有长度不同的多个棘爪部。 棘爪部分接合棘齿以将棘轮构件保持在停止位置。 棘爪部之间的长度差小于与棘轮齿的间距对应的距离。

公开(公告)号：US08376636B2

公开(公告)日：2013-02-19

申请号：US13311940

申请日：2011-12-06

申请人： Hiroshi Takahashi ,  Yoichi Nakano

发明人： Hiroshi Takahashi ,  Yoichi Nakano

IPC分类号： G03B9/08

CPC分类号： G03B9/36

摘要： A focal plane shutter includes: an electromagnet; a board including an opening; blades capable of opening and closing the opening; a drive member holding an iron piece adsorbed to the electromagnet and driving the blades, the drive member being movable such that the iron piece moves toward and away from the electromagnet and being biased by a spring such that the iron piece moves away from the electromagnet; and a holding board facing the board and including a pair of sandwiching portions elastically deformable and holding and sandwiching the electromagnet. The electromagnet includes a restriction portion engaging the board and restricting a movement of the electromagnet in a direction where the iron piece moves away from the electromagnet.

摘要翻译： 焦平面快门包括：电磁体; 包括开口的董事会; 能够打开和关闭开口的叶片; 保持吸附在电磁铁上并驱动刀片的铁件的驱动件，驱动件可移动以使铁件朝向和远离电磁铁移动并被弹簧偏压使得铁件远离电磁铁移动; 以及保持板，所述保持板面向所述板，并且包括可弹性变形并保持和夹持所述电磁体的一对夹持部。 电磁铁包括限制部分，其接合板并且限制电磁体沿着铁片远离电磁体移动的方向的移动。

公开(公告)号：US07140790B2

公开(公告)日：2006-11-28

申请号：US10825549

申请日：2004-04-14

申请人： Yoichi Nakano ,  Hiroshi Takahashi

发明人： Yoichi Nakano ,  Hiroshi Takahashi

IPC分类号： G03B9/08 ,  G03B9/40

CPC分类号： G03B9/18

摘要： A sector drive assembly for a camera which can open and close an aperture has a sector drive unit having an actuator, a drive force transmitting mechanism, and a sector position detecting unit that are removably mounted as a unit to a support plate, and a sector unit having a base plate formed with an aperture and one or more sectors for opening and closing the aperture. Since the sector drive unit is provided as a removably mountable unit, it is high in versatility and can be mounted to various different types of sector units. In addition, since it is configured to detect the state of the sectors before operation, reliable exposure or opening and closing of the aperture are achieved. In addition, a positional adjustment function is provided by a sector urging spring.

摘要翻译： 用于可打开和关闭孔的相机的扇形驱动组件具有扇区驱动单元，该扇区驱动单元具有作为单元可拆卸地安装到支撑板的致动器，驱动力传递机构和扇区位置检测单元，以及扇区 单元具有形成有孔的基板和用于打开和关闭孔的一个或多个扇区。 由于扇区驱动单元被设置为可拆卸地安装的单元，所以其通用性高，并且可以安装到各种不同类型的扇区单元。 此外，由于其被配置为在操作之前检测扇区的状态，因此实现了可靠的曝光或打开和关闭光圈。 此外，由扇形推动弹簧提供位置调节功能。

公开(公告)号：US07605864B2

公开(公告)日：2009-10-20

申请号：US11205900

申请日：2005-08-16

申请人： Hiroshi Takahashi ,  Yoichi Nakano ,  Kenichi Kudou ,  Masao Fujiwara

发明人： Hiroshi Takahashi ,  Yoichi Nakano ,  Kenichi Kudou ,  Masao Fujiwara

IPC分类号： H04N5/225

CPC分类号： H04N5/2254

摘要： There is provided an image pickup apparatus having an image pickup unit having an image pickup element, an optical unit having lenses, a sector drive unit having sectors arranged in a space for arranging the sectors, and supporting members being fixed in the space for arranging the sectors and having lengths equal to at least a width of the space for arranging the sectors in a light axis direction.

摘要翻译： 提供了一种具有摄像单元的图像摄取装置，具有摄像元件，具有透镜的光学单元，具有布置在用于布置扇区的空间中的扇形的扇区驱动单元，以及固定在该空间中的支撑构件， 扇区，其长度至少等于在光轴方向上布置扇区的空间的宽度。

公开(公告)号：US20080240708A1

公开(公告)日：2008-10-02

申请号：US12076911

申请日：2008-03-25

申请人： Hiroshi Takahashi ,  Yoichi Nakano ,  Chiaki Nemoto

发明人： Hiroshi Takahashi ,  Yoichi Nakano ,  Chiaki Nemoto

IPC分类号： G03B9/40

CPC分类号： G03B9/40

摘要： A focal-plane shutter has a first plate having a first opening, a second plate having a second opening, a shutter blade disposed between the first plate and the second plate, for opening and closing the first opening and the second opening, and a thin plate disposed at a side of the first plate facing the shutter blade and extending in such a direction that the shutter blade travel. A distance between an edge of the first opening and a center of the first opening is greater than that between an edge of the thin plate and the center of the first opening.

摘要翻译： 焦平面快门具有具有第一开口的第一板，具有第二开口的第二板，设置在第一板和第二板之间的快门叶片，用于打开和关闭第一开口和第二开口， 设置在面对快门叶片的第一板的一侧并沿快门叶片行进的方向延伸的板。 第一开口的边缘和第一开口的中心之间的距离大于薄板的边缘和第一开口的中心之间的距离。