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公开(公告)号：US4319821A
公开(公告)日：1982-03-16
申请号：US195659
申请日：1980-10-09
申请人： Nobuo Tezuka , Michio Hirohata
发明人： Nobuo Tezuka , Michio Hirohata
摘要： A plurality of shutter blades for a camera serving at the same time as the diaphragm blades consisting of colored plastics, so designed that when the opening for the light beam is covered with the shutter blades more than two shutter blades are overlapped over each other so as to shade the light opening. Further at the object side in the operation space of the shutter blades a plastic control member having an opening almost the same as or larger than the light opening is provided as a heat insulation member for the shutter blades.
摘要翻译： 多个快门叶片，用于与由有色塑料组成的光阑叶片同时工作的照相机，设计成当光束的开口被快门叶片覆盖时，多于两个快门叶片彼此重叠，以便 遮光开灯。 此外，在快门叶片的操作空间中的物体侧，设置具有与开口几乎相同或更大的开口的塑料控制构件作为快门叶片的隔热构件。
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公开(公告)号：US4349264A
公开(公告)日：1982-09-14
申请号：US231040
申请日：1981-02-04
申请人： Nobuo Tezuka , Michio Hirohata
发明人： Nobuo Tezuka , Michio Hirohata
摘要： In an electromagnetically driven shutter of the type having a shutter driving rotor arranged to rotate on the optical axis of a photograph-taking lens, the shutter driving rotor is provided with a circular opening and is formed into an approximately rhombic shape consisting of circumferential parts which are concentric with the circular opening and straight parts which extend in the tangential directions of the circumferential parts. A conductor coil is provided along the periphery of the shutter driving rotor. A magnetic field is arranged to act on the straight parts of the coil to rotate the rotor upon supply of electrical energy.
摘要翻译： 在具有布置成在摄影镜头的光轴上旋转的快门驱动转子的类型的电磁驱动的快门中，快门驱动转子设置有圆形开口，并且形成为由圆周部分组成的大致菱形， 与圆形开口和沿周向部分的切线方向延伸的直线部分同心。 沿着快门驱动转子的周边设置导体线圈。 磁场被布置成作用在线圈的直线部分上以在供应电能时旋转转子。
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公开(公告)号：US4348092A
公开(公告)日：1982-09-07
申请号：US232851
申请日：1981-02-09
申请人： Michio Hirohata , Nobuo Tezuka
发明人： Michio Hirohata , Nobuo Tezuka
IPC分类号： G03B9/22
CPC分类号： G03B9/22
摘要： In an electromagnetically driven shutter with a rotor having a conductive coil pattern and a stator with permanent magnets arranged thereon to form a magnetic field in which the rotor is driven to rotate, the rotor is provided with a return spring urging the shutter blades in a closing direction while nevertheless preventing bouncing of the rotor resulting from operation of the return spring when the shutter blades are fully opened.
摘要翻译： 在具有导电线圈图案的转子和具有布置在其上的永磁体的定子的电磁驱动的快门中，以形成转子被驱动旋转的磁场，转子设置有一个复位弹簧，该复位弹簧在关闭时推动快门叶片 方向，同时防止当快门叶片完全打开时由于复位弹簧的操作导致的转子弹起。
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公开(公告)号：US4319822A
公开(公告)日：1982-03-16
申请号：US195852
申请日：1980-10-10
申请人： Nobuo Tezuka , Michio Hirohata
发明人： Nobuo Tezuka , Michio Hirohata
摘要： An electromagnetically operated shutter device includes a magnetic body and permanent magnets which form a magnetic circuit in the magnetic body. A positioning member for seating the magnets within the body is made of a non-metallic material, and is formed of a support structure and a frame. A gap is formed by the frame between the positioning member and the magnetic body, and a shutter drive motor is disposed in the gap and is rotatably held by the support structure. According to one embodiment, an adjusting member is arranged on the body for adjusting the extent to which shutter blades driven by the rotor overlap one another. The adjusting member is magnetically shielded by a magnetic path which is formed by a part of the magnetic body.
摘要翻译： 电磁操作的快门装置包括磁体和在磁体中形成磁路的永磁体。 用于将磁体放置在主体内的定位构件由非金属材料制成，并且由支撑结构和框架形成。 通过定位构件和磁体之间的框架形成间隙，并且快门驱动电机设置在间隙中并且被支撑结构可旋转地保持。 根据一个实施例，调节构件设置在主体上用于调节由转子驱动的快门叶片彼此重叠的程度。 调整部件被由磁体的一部分形成的磁路磁屏蔽。
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公开(公告)号：USD306452S
公开(公告)日：1990-03-06
申请号：US886047
申请日：1986-07-16
申请人： Noboru Tanaka , Michio Hirohata
设计人： Noboru Tanaka , Michio Hirohata
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公开(公告)号：US4466723A
公开(公告)日：1984-08-21
申请号：US418381
申请日：1982-09-15
申请人： Hideo Ikari , Michio Hirohata
发明人： Hideo Ikari , Michio Hirohata
CPC分类号： G03B9/22
摘要： In the disclosed camera drive device, a driver electromagnetically driven by coils opens and closes shutter blade members and other exposure members. A holding arrangement holds the blade members closed while the driver controls the other exposure members and a control arrangement actuates the holding arrangement independently of the operating condition of the driver.
摘要翻译： 在所公开的相机驱动装置中，由线圈电磁驱动的驱动器打开和关闭快门叶片构件和其它曝光构件。 保持装置在驱动器控制其他曝光构件时保持叶片构件关闭，并且控制装置独立于驾驶员的操作状态来致动保持装置。
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公开(公告)号：US4410249A
公开(公告)日：1983-10-18
申请号：US374108
申请日：1982-05-03
申请人： Michio Hirohata , Hideo Ikari
发明人： Michio Hirohata , Hideo Ikari
摘要： A camera having an electromagnetically operated shutter in which a plurality of shutter blades arranged to perform a combined function as a diaphragm are driven to gradually open the shutter from a fully closed state in effecting an exposure. Prior to effecting an exposure, the shutter blades change from a deeply overlapped state to a shallowly overlapped state.
摘要翻译： 具有电磁操作的快门的相机被驱动，其中布置成执行作为隔膜的组合功能的多个快门叶片被驱动以在实现曝光的同时从完全关闭状态逐渐打开快门。 在进行曝光之前，快门叶片从深重叠状态变为浅重叠状态。
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公开(公告)号：US4401378A
公开(公告)日：1983-08-30
申请号：US373272
申请日：1982-04-29
申请人： Michio Hirohata , Hideo Ikari
发明人： Michio Hirohata , Hideo Ikari
CPC分类号： G03B3/10
摘要： A coil-like conductor is provided in combination with a rotor arranged to rotate in different directions depending upon the direction of current flow to this conductor, and the rotor is drivingly connected to open and close blade members. When a first current supply is generated, as the rotor rotates from an initial position in a direction to further close the blade members, a focus adjusting operation is initiated. Upon termination of the focus adjusting operation, the direction of current flow to the conductor is reversed. As the completion of focus adjusting is followed by a subsequent current supply, the rotor is caused to rotate in a direction to open the blade members, thus initiating an exposure operation.
摘要翻译： 一个线圈状导体与转子组合设置，该转子布置成根据流向该导体的电流方向在不同方向旋转，并且转子驱动地连接到开闭叶片部件。 当产生第一电流供应时，当转子从初始位置沿一个方向旋转以进一步关闭叶片构件时，开始聚焦调节操作。 在焦点调节操作终止时，导体流向电流的方向相反。 随着焦点调整的完成之后是随后的电流供给，使得转子沿着打开叶片构件的方向旋转，从而开始曝光操作。
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公开(公告)号：US4390262A
公开(公告)日：1983-06-28
申请号：US304936
申请日：1981-09-23
申请人： Michio Hirohata , Yukio Ogawa , Tetsuya Taguchi
发明人： Michio Hirohata , Yukio Ogawa , Tetsuya Taguchi
摘要： An electromagnetic diaphragm shutter mechanism is provided with an electromagnet in the form of a coil or a printed circuit pattern arranged on a sector ring of the shutter mechanism. With a magnetic field applied to the electromagnet, when current is caused to flow therethrough in a prescribed direction, the sector ring is driven to rotate. A light measuring diaphragm mechanism related to the exposure diaphragm of the shutter blades serves to control the shutter and to improve the accuracy of program control of the shutter, the sector ring being always urged to move in a direction to close the shutter.
摘要翻译： 电磁光阑快门机构设置有线圈形式的电磁体或布置在快门机构的扇形环上的印刷电路图案。 当施加到电磁体的磁场时，当使电流在规定的方向上流过时，扇形环被驱动旋转。 与快门叶片的曝光光圈相关的光测量膜机构用于控制快门并提高快门的节目控制精度，扇形环始终被推动以沿关闭快门的方向移动。
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公开(公告)号：US4306788A
公开(公告)日：1981-12-22
申请号：US67228
申请日：1979-08-17
申请人： Yukio Ogawa , Michio Hirohata , Tetsuya Taguchi
发明人： Yukio Ogawa , Michio Hirohata , Tetsuya Taguchi
摘要： An electromagnetic actuating device for controlling the opening and closing operation of a shutter includes a plurality of plate-like permanent magnets and yokes alternating in layers to form a plurality of magnetic paths, and a moving coil arranged to be movable in a space provided in said magnetic paths. The device is thus minimized in bulk and size, can be built into the shutter casing, and rendered operable with electrical energy consumption kept to a minimum.
摘要翻译： 用于控制闸门的打开和关闭操作的电磁致动装置包括多个板状永久磁铁和以层交替形成的磁轭，以形成多个磁路;以及一个可动线圈，其设置成可在设置在所述 磁路。 因此，该装置的体积和尺寸最小化，可以内置在快门外壳中，并且在电能消耗保持最小的情况下可操作。
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