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21.发明授权
公开(公告)号：US6068412A
公开(公告)日：2000-05-30
申请号：US283741
申请日：1999-04-01
申请人： Stephen J. Smith , James D. Boyd , Michael Cramer
发明人： Stephen J. Smith , James D. Boyd , Michael Cramer
摘要： A shutter mechanism comprising an aperture through which ambient light is passed to cause a film exposure, a pair of shutter blades supported for pivotal opening movement in opposite opening directions away from one another to uncover the aperture to permit ambient light to pass through the aperture and for pivotal closing movement in return closing directions towards one another to re-cover the aperture and supported to allow them to be pivoted simultaneously in the same direction to cause accidental shutter opening when a physical shock is applied to the shutter blades in the opening direction of one of the shutter blades, is characterized in that each one of the shutter blades completely covers the aperture in order that both of the shutter blades must be removed from the aperture to uncover the aperture to permit ambient light to pass through the aperture, and a single fixed stop is positioned between the shutter blades to prevent either one of the shutter blades from pivoting in the same direction as the other shutter blade to uncover the aperture when one of the shutter blades is pivoted in its opening direction, whereby when one of the shutter blades is pivoted in its opening direction because a physical shock is applied to the shutter blades in that direction the fixed stop prevents the other blade from pivoting in the same direction to cause accidental shutter opening.
摘要翻译： 一种快门机构，包括一个孔，环境光通过该孔通过，引起胶片曝光;一对快门叶片，被支撑成相对的开启方向相互离开的枢转打开运动，以露出孔，以允许环境光通过该孔; 用于在关闭方向上彼此相对的关闭方向上的枢转关闭运动，以重新覆盖孔并被支撑以允许它们在相同方向上同时枢转，以在物理冲击沿快门叶片沿打开方向施加物理冲击时引起意外快门打开 快门叶片中的一个，其特征在于，每个快门叶片完全覆盖孔，以便两个快门叶片必须从孔中移除以露出孔以允许环境光通过孔，并且 单个固定止动件位于快门叶片之间，以防止快门叶片中的任一个在t中枢转 与其他快门叶片相同的方向，以便当其中一个快门叶片沿其打开方向枢转时露出孔，由此当快门叶片中的一个在打开方向上枢转时，因为对快门叶片施加了物理冲击，因此 方向固定挡块可防止另一个刀片在相同方向上枢转，从而导致意外的挡板打开。
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公开(公告)号：US5619741A
公开(公告)日：1997-04-08
申请号：US683820
申请日：1996-07-18
申请人： Seon-ho Lee , Jae-kyeong Seo
发明人： Seon-ho Lee , Jae-kyeong Seo
CPC分类号： G03B9/14 , G03B17/425 , G03B7/10 , G03B9/08
摘要： A shutter driving system for a camera including a motor gear, an automatic exposing gear, an opening lever, an automatic focusing gear, an automatic focusing ring, and a locking member. The system controls the locking member for accurate automatic focusing.
摘要翻译： 一种用于照相机的快门驱动系统，包括马达齿轮，自动曝光齿轮，开启杆，自动聚焦装置，自动聚焦环和锁定构件。 该系统控制锁定构件以进行精确的自动对焦。
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公开(公告)号：US5446514A
公开(公告)日：1995-08-29
申请号：US177248
申请日：1994-01-04
申请人： Junichi Matsumoto
发明人： Junichi Matsumoto
摘要： A shutter blades opening and closing lever is biased by a spring in a direction to open shutter blades. A pin made of a soft magnetic material is built in a motor which consists of a stator having a coil wound therearound and a magnet rotor. An operation to open the shutter blades opening and closing lever is performed by the spring, whereas another operation to close the shutter blades opening and closing lever is performed by a driving pin which is integrated with the magnet rotor. In a condition where the shutter blades are closed, the shutter blades opening and closing lever is kept at a standard position thereof, against resilience of the spring, by utilizing a magnetic attractive force exerted between the pin made of the soft magnetic material and the magnet rotor.
摘要翻译： 快门叶片打开和关闭杆由弹簧沿打开快门叶片的方向偏置。 由软磁性材料制成的销被内置在由具有卷绕在其周围的线圈的定子和磁体转子组成的电动机中。 通过弹簧执行打开快门叶片打开和关闭杆的操作，而关闭快门叶片打开和关闭杆的另一操作由与磁体转子集成的驱动销执行。 在快门叶片关闭的状态下，快门叶片打开和关闭杆通过利用施加在由软磁材料制成的销和磁体之间的磁吸引力而保持在其弹性的弹性的标准位置 转子。
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24.发明授权Aperture mechanism having a blade positionable in an open position by a hard stop 失效光圈机构，其具有可通过硬停止定位在打开位置的刀片
公开(公告)号：US5432576A
公开(公告)日：1995-07-11
申请号：US177668
申请日：1994-01-05
摘要： An aperture mechanism includes at least one blade moveable along a path between a closed position and at least one open position. At least one hard stop is moveable between a first position, out of the blade path, and a second position in the blade path to position the blade in the open position when an edge of the blade contacts the hard stop. The hard stop is located out of a plane of movement of the blade when the hard stop is in the first position to simplify and make more accurate the positioning of the blade in the open position.
摘要翻译： 孔机构包括至少一个沿着关闭位置和至少一个打开位置之间的路径可移动的刀片。 至少一个硬止动件可以在叶片路径中的第一位置和叶片路径中的第二位置之间移动，以便当叶片的边缘接触硬止动件时将叶片定位在打开位置。 当硬止动件处于第一位置时，硬止动件位于叶片的运动平面之外，以简化刀片在打开位置的定位。
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公开(公告)号：US5255037A
公开(公告)日：1993-10-19
申请号：US755557
申请日：1991-09-05
申请人： Kouichi Kobayashi
发明人： Kouichi Kobayashi
摘要： The camera shutter comprises two shutter blades which have first opening forming portions and second opening forming portions capable of alternatively forming two exposure openings different in area on an exposure aperture. These shutter blades are opened and closed by a shutter blade opening and closing lever which can be retained at a neutral position by a closing spring. The shutter blade opening and closing lever is turned by a motor which starts from the neutral position rotates in one of two directions opposite to each other. The lever is equipped with a opening spring capable of exerting a resilient force in the rotating directions of the opening and closing lever. The resilient force of the opening spring is weaker than that of the closing spring. The first opening forming portions form an exposure opening when the motor is started in a first direction and the second opening forming portions form an exposure opening when the motor is started in a second direction. Sizes of the exposure openings are adjustable by turning an adjustable eccentric stopper. This camera shutter can perform accurate and stable exposure operations though it has a simple construction and can be manufactured at a low cost.
摘要翻译： 相机快门包括具有第一开口形成部分和第二开口形成部分的两个快门叶片，其能够交替地形成曝光孔径上不同面积的两个曝光开口。 这些快门叶片由快门叶片打开和关闭杆打开和关闭，该快门叶片打开和关闭杆可以通过关闭弹簧保持在中立位置。 快门叶片打开和关闭杆由从中立位置开始的电动机转动，该电动机在彼此相反的两个方向之一中旋转。 杠杆配备有能够在打开和关闭杆的旋转方向上施加弹力的打开弹簧。 打开弹簧的弹力比闭合弹簧的弹性弱。 当电动机沿第一方向启动时，第一开口形成部分形成曝光开口，并且当电动机沿第二方向启动时，第二开口形成部分形成曝光开口。 通过转动可调偏心止动器可以调节曝光口的尺寸。 该相机快门可以执行准确和稳定的曝光操作，尽管其具有简单的结构，并且可以以低成本制造。
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公开(公告)号：US5109250A
公开(公告)日：1992-04-28
申请号：US452565
申请日：1989-12-18
申请人： Nobuo Shinozaki , Yoichi Seki , Shigeru Tagami
发明人： Nobuo Shinozaki , Yoichi Seki , Shigeru Tagami
摘要： A program shutter for automatic exposure control including a forwardly/reversibly rotatable step motor for opening and closing a shutter to effect automatic exposure in the control circuit for controlling the operation of the step motor. The control circuit includes stored predetermined shutter mechanism characteristic values. The reversible stepping motor varies the lens aperture in response to a pulsed lens control signal generated by the control circuit. The corresponding value associated with each pulse is varied to be synchronized with and dependent on the shutter mechanism characteristic values and correspondingly varies the rotational power of the reversible stepping motor to overcome detrimental inherent shutter mechanism characteristics and to increase the response efficiency of the shutter.
摘要翻译： 一种用于自动曝光控制的程序快门，包括用于打开和关闭快门的向前/可逆旋转步进电机，以在控制电路中实现自动曝光，以控制步进电机的操作。 控制电路包括存储的预定的快门机构特性值。 响应于由控制电路产生的脉冲透镜控制信号，可逆步进电机改变透镜孔径。 与每个脉冲相关联的对应值被改变以与快门机构特征值同步并且取决于快门机构特征值，并且相应地改变可逆步进电机的旋转功率，以克服有害的固有快门机构特性并提高快门的响应效率。
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公开(公告)号：US4851871A
公开(公告)日：1989-07-25
申请号：US161391
申请日：1988-02-22
申请人： Haruki Ooe , Kouichi Kobayashi
发明人： Haruki Ooe , Kouichi Kobayashi
CPC分类号： H01L41/042 , G03B7/087 , G03B7/16 , G03B9/14
摘要： A driving unit using an electrostrictive element drives mechanical members such as, for example, a diaphragm and a shutter or a shutter blade having the function of a diaphragm blade by deformation of the electrostrictive element produced when a voltage is applied to the element, and is adapted to obtain a desired deformation quantity from the electrostrictive element regardless of the magnitude of an initial deformation quantity due to hysteresis of the element. A reference switch such as, for example, a photointerrupter operates when a predetermined reference deformation quantity is obtained in an area where the deformation quantity changes linearly in respect to variation of an applied voltage. A voltage obtained by superposing a voltage corresponding to a difference between a desired deformation quantity of the element and the reference deformation quantity on a voltage applied to the electrostrictive element when the reference switch is operated is applied to the electrostrictive element so that a desired deformation quantity is obtained regardless of the magnitude of the initial deformation quantity.
摘要翻译： 使用电致伸缩元件的驱动单元通过在施加电压而产生的电致伸缩元件的变形而驱动诸如隔膜和闸板或具有隔膜叶片功能的快门叶片的机械构件，并且是 适于从电致伸缩元件获得期望的变形量，而不管由于元件的滞后引起的初始变形量的大小。 当在变形量相对于施加电压的变化线性变化的区域中获得预定的参考变形量时，诸如例如光断续器的参考开关操作。 通过将对应于元件的期望变形量和基准变形量之间的差的电压叠加在对基准开关操作时施加到电致伸缩元件的电压上而获得的电压施加到电致伸缩元件，使得期望的变形量 而不管初始变形量的大小如何。
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公开(公告)号：US4650307A
公开(公告)日：1987-03-17
申请号：US781597
申请日：1985-09-30
摘要： An electromagnetic actuator operable with a source of electric current has two overlapping, oppositely movable armatures that are mounted on resiliently flexible cantilever spring members and coupled together by resiliently flexible spring elements, to provide coordinated cooperative movements of the armatures when energized. The armatures have conductive coils thereon that are connectable to the current source through the spring members and spring elements. A permanent magnet and a pair of flux return plates are disposed near the armatures to provide a suitable magnetic path through the coils. Current flowing through the coils in the magnetic path generates oppositely directed forces on the two armatures. Structure is provided for constraining the coupling spring elements to move in only one direction when such forces are generated, thereby facilitating coordination of desired armature movements in directions substantially opposite to each other and perpendicular to the one direction.
摘要翻译： 可用电流源操作的电磁致动器具有两个重叠的相对可移动的电枢，其安装在弹性柔性悬臂弹簧构件上并通过弹性弹性元件联接在一起，以在通电时提供电枢的协调协作运动。 电枢在其上具有导电线圈，其可通过弹簧元件和弹簧元件连接到电流源。 永磁体和一对磁通返回板设置在电枢附近，以提供通过线圈的合适的磁路。 在磁路中流过线圈的电流在两个电枢上产生相反的力。 提供了用于限制联接弹簧元件在产生这种力时在一个方向上移动的结构，从而有助于在彼此基本上相反并且垂直于一个方向的方向上协调所需的电枢运动。
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公开(公告)号：US4614416A
公开(公告)日：1986-09-30
申请号：US750643
申请日：1985-06-27
申请人： Toyotosi Suzuki , Toru Nagata
发明人： Toyotosi Suzuki , Toru Nagata
摘要： A device for controlling the operation of a camera includes a speed governing member arranged to be operated by a driving force differing from a driving force used for driving shutter blades. The opening speed of the shutter blades is stably controlled by the speed governing member. The control device retards the speed of a shutter blade opening action to enable an automatic focusing action to be performed before the photo-taking aperture actually begins to open after commencement of the shutter blade opening action.
摘要翻译： 用于控制照相机操作的装置包括调速部件，该调速部件布置成由与用于驱动快门叶片的驱动力不同的驱动力操作。 快门叶片的打开速度由调速构件稳定地控制。 控制装置延迟快门叶片打开动作的速度，以便在快门叶片打开动作开始之后在拍摄光圈实际开始打开之前执行自动对焦动作。
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公开(公告)号：US4564278A
公开(公告)日：1986-01-14
申请号：US595543
申请日：1984-03-27
申请人： Hiroshi Ohmura
发明人： Hiroshi Ohmura
CPC分类号： G03B9/14
摘要： An exposure control device for use with a camera provided with two objective lenses having different focal lengths which are selectively used includes two exposure control elements which are disposed in front of and facing the two objective lenses, respectively, and simultaneously driven by a common drive. The light passed through the respective exposure control elements which is selected by an optical path changer is allowed to reach a film. The exposure control elements are diaphragms which allow the admission of light to the objective lenses. A pivotal arm has at least one pin at at least one end that engages in a slot in each of the diaphragms. Another end of the arm carries an armature that can be moved by at least one electromagnet and that is urged toward an intermediate position by a spring.
摘要翻译： 与配备有选择性地使用具有不同焦距的两个物镜的照相机一起使用的照相机的曝光控制装置分别包括两个曝光控制元件，它们分别设置在两个物镜的前面并面对两个物镜，同时由公共驱动驱动。 通过由光路改变器选择的各个曝光控制元件的光被允许到达膜。 曝光控制元件是允许光入射到物镜的光阑。 枢转臂在至少一个端部具有至少一个销接合在每个隔膜中的槽中。 臂的另一端承载可由至少一个电磁体移动的电枢，并且通过弹簧被推向中间位置。
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