-
公开(公告)号：US4006979A
公开(公告)日：1977-02-08
申请号：US432247
申请日：1974-01-10
CPC分类号： G03B17/38
摘要： An electromagnet release device for a motion picture camera having a drive motor, a shutter control member actuated by the driving force of the motor, a blocking mechanism to selectively block the actuation of the shutter control member, an electromagnet member to control the actuation of the blocking mechanism and a release control switching member with a delay circuit having a charging circuit that delays, for a predetermined time, the timing of the actuation of the motor relative to the timing of the actuation of the electromagnet and a discharging circuit to keep the motor energized for a period after the electromagnet is released to assure the driving of the shutter to the proper stop position. Circuits are also shown for reducing magnet current during continuous operation and for timing the operated period of the electromagnet in single frame operation.
摘要翻译： 一种用于具有驱动电动机的电动磁铁释放装置，由电动机的驱动力驱动的快门控制构件，用于选择性地阻挡快门控制构件的致动的阻挡机构，用于控制电动机的致动的电磁体构件 阻塞机构和具有延迟电路的释放控制切换构件，所述延迟电路具有充电电路，所述充电电路在预定时间内延迟所述电动机的致动时间相对于所述电磁体的致动时间以及放电电路以保持所述电动机 在释放电磁铁之后一段时间通电，以确保快门的驱动到正确的停止位置。 还示出了用于在连续操作期间减小磁体电流并且用于在单帧操作中对电磁体的操作周期进行定时的电路。
-
公开(公告)号：US4378150A
公开(公告)日：1983-03-29
申请号：US280339
申请日：1981-07-06
申请人： Teiji Hashimoto , Michio Senuma
发明人： Teiji Hashimoto , Michio Senuma
摘要： In an electromagnetically driven focal plane shutter of the type having a trailing screen which moves irrespective as to whether a leading screen is moving, there are provided a detecting member arranged to detect movement of the leading screen and an inhibiting means which inhibits the trailing screen from moving when movement of the leading screen is not detected.
摘要翻译： 在具有拖尾屏幕的类型的电磁驱动焦平面快门中，无论前置屏幕是否正在移动，都会移动，设置有检测构件，用于检测前屏幕的移动，以及抑制装置， 未检测到主屏幕的移动时移动。
-
公开(公告)号：US4560265A
公开(公告)日：1985-12-24
申请号：US569783
申请日：1984-01-10
申请人： Teiji Hashimoto
发明人： Teiji Hashimoto
CPC分类号： G03B9/18
摘要： A blade type focal plane shutter in which a number of shutter blades are mounted for parallel-linked movements by two operating arms, the system for supporting the blades reducing the size of the shutter and one end of a first auxiliary blade succeeding a slit forming blade is connected to the operating arms in accordance with a relationship between the pins and the arc grooves.
摘要翻译： 一种叶片型焦平面快门，其中多个快门叶片安装用于通过两个操作臂的平行连接的运动，用于支撑叶片的系统减小了闸门的尺寸，并且在狭缝形成叶片之后的第一辅助叶片的一端 根据销和电弧槽之间的关系连接到操作臂。
-
公开(公告)号：US4394081A
公开(公告)日：1983-07-19
申请号：US292733
申请日：1981-08-14
申请人： Teiji Hashimoto , Syuichiro Saito
发明人： Teiji Hashimoto , Syuichiro Saito
摘要： Disclosed is a magnetically controlled focal plane shutter wherein one electromagnet controls a leading shutter curtain and another electromagnet controls a following shutter curtain by releasing respective checking members as power is supplied thereto. The electromagnetic characteristics of the electromagnet that controls the following shutter curtain differ from those of the electromagnet controlling the leading shutter curtain. According to a specific embodiment disclosed, the follower-curtain controlling electromagnet saturates earlier than the leading curtain controlling magnet so as to compensate for deterioration of an energizing battery and thereby limits the problem of shutter time lag resulting from the long battery use.
摘要翻译： 公开了一种磁力控制的焦平面快门，其中一个电磁体控制前导快门帘幕，另一个电磁体通过在向其提供电力时释放相应的检查部件来控制随后的快门帘幕。 控制以下快门帘幕的电磁铁的电磁特性与控制前挡板帘幕的电磁体的电磁特性不同。 根据所公开的具体实施例，随动帘控制电磁体比前帘控制磁体早饱和，以补偿激励电池的劣化，从而限制由长电池使用引起的快门时滞的问题。
-
公开(公告)号：US4382670A
公开(公告)日：1983-05-10
申请号：US342205
申请日：1982-01-25
申请人： Teiji Hashimoto , Michio Senuma , Fumio Shimada
发明人： Teiji Hashimoto , Michio Senuma , Fumio Shimada
CPC分类号： G03B9/18
摘要： Disclosed is a focal plane shutter for a camera having a shutter blade group consisting of a plural number of light shading thin plates held with two arms, so designed that the slit forming blade positioned at the end of the arm and a light shading auxiliary blade positioned next to the above are made to move in parallel by way of a parallel linkage and that a plural number of other auxiliary blades are mounted rotatably around the shaft provided on the one arm and engaged with a common shaft provided on the other arm in such a manner that along with the rotation of the latter arm they are rotated with the latter shaft.
摘要翻译： 公开了一种具有快门叶片组的相机的焦平面快门，该快门叶片组由多个固定有两个臂的遮光薄板组成，设计成使得位于臂的端部处的狭缝形成刀片和位于 通过平行连杆使上述的平行移动，并且多个其他辅助叶片围绕设置在一个臂上的轴可旋转地安装并与设置在另一个臂上的公共轴接合在一起 随着后一个臂的旋转，它们随后一个轴旋转。
-
公开(公告)号：US4319823A
公开(公告)日：1982-03-16
申请号：US208343
申请日：1980-11-19
申请人： Teiji Hashimoto
发明人： Teiji Hashimoto
CPC分类号： G03B9/08
摘要： An electromagnetic driving device for driving shutter blades wherein a field coil used as stator encircles a permanent magnet rotor and extends across the rotational axis thereof. The rotor is arranged to undergo reciprocating rotation through less than one half turn in driving the shutter blades to open and close the shutter. Interference between the field coil and a coaxially arranged output shaft is avoided by the provision of a U-shaped intermediate member extending about the field coil and connecting the output shaft and the rotor.
摘要翻译： 一种用于驱动快门叶片的电磁驱动装置，其中用作定子的励磁线圈环绕永磁转子并且横过其旋转轴线延伸。 转子被布置成在驱动快门叶片时经过少于一半的往复旋转以打开和关闭快门。 通过设置围绕励磁线圈延伸并连接输出轴和转子的U形中间构件来避免励磁线圈与同轴布置的输出轴之间的干扰。
-
公开(公告)号：US4316662A
公开(公告)日：1982-02-23
申请号：US112699
申请日：1980-01-16
申请人： Yoichi Tosaka , Teiji Hashimoto , Nobuo Tezuka
发明人： Yoichi Tosaka , Teiji Hashimoto , Nobuo Tezuka
CPC分类号： G03B9/28
摘要： A brake device for use with a shutter having a driving member which runs down when the shutter is opened or closed, includes a brake member pivotally rotatable about a stationary shaft and arranged upon engagement with the shutter driving member to slow it down and bring it to rest. An elastic material is employed in forming at least one of the above-described brake member and stationary shaft to effect a frictional engagement therebetween which contributes to the braking of the shutter driving member.
摘要翻译： 一种用于与闸门一起使用的制动装置，其具有当闸门打开或关闭时向下运动的驱动构件，包括可围绕静止轴可枢转地旋转的制动构件，并且在与挡板驱动构件接合时被布置成使其减速并使其 休息。 在形成上述制动构件和固定轴中的至少一个时采用弹性材料，以实现其间的摩擦接合，这有助于快门驱动构件的制动。
-
公开(公告)号：US4175845A
公开(公告)日：1979-11-27
申请号：US834505
申请日：1977-09-19
CPC分类号： G03B17/425
摘要： In a winding up device of a camera settable to an operative position at a phase of exposure completion and to an inoperative position at a phase of winding up completion, there is provided an electromagnetic clutch in transmitting means for transmitting driving force from a drive source of the winding up device. Electrical supply of power to the drive source or winding up motor and the electromagnetic clutch are controlled through a detecting means for detecting the phase of winding up completion to effect rapid changeover between the connection and separation of the driving force of the winding up motor to and from a winding member of the camera, thereby a continuous winding up operation is performed with ease. Power is cut off to the winding up motor switching device and to an electromagnetic clutch switching means to make the film winding up mechanism powerless before a device for stopping the wind up action begins to work.
摘要翻译： 在相机的曝光完成阶段的可操作位置的相机的卷绕装置和卷绕完成阶段的不工作位置的同时，提供了一种电磁离合器，用于从驱动源的驱动源 卷绕装置。 通过用于检测卷绕完成阶段的检测装置来控制对驱动源或卷绕电动机和电磁离合器的电力供应，以实现连接之间的快速切换和将卷绕电动机的驱动力分离到 从相机的卷绕部件，由此容易地执行连续的卷绕操作。 电力切断到卷绕电动机切换装置和电磁离合器切换装置，以在用于停止卷绕动作的装置开始工作之前使膜卷绕机构无功。
-
公开(公告)号：US4153360A
公开(公告)日：1979-05-08
申请号：US764287
申请日：1977-01-31
申请人： Noboru Kodaira , Nobuo Tezuka , Mitio Senuma , Teiji Hashimoto , Masanori Uchidoi , Yukio Iura
发明人： Noboru Kodaira , Nobuo Tezuka , Mitio Senuma , Teiji Hashimoto , Masanori Uchidoi , Yukio Iura
摘要： A focal plane shutter for a camera includes a shutter unit casing for supporting a shutter mechanism. A rotatable body is connected with the shutter for winding up the shutter to a charged position. A shutter driving spring is also connected with the shutter mechanism for driving the shutter and a holding member is coupled with the rotatable body for holding the shutter mechanism in a charged position. A driving shaft carrying a driving gear is coupled to the rotatable body through a transmission gear and a clutch. A spring is coupled with the clutch to urge the clutch in a direction for releasing engagement between the transmission gear and the rotatable body. The driving gear has a plane section on its circumferential periphery spacing adjacent teeth apart so that engagement between the driving gear and the transmission gear is released when the rotatable body is held so that the transmission gear and the clutch can rotate, under the influence of the spring, back to the initial position.
摘要翻译： 用于相机的焦平面快门包括用于支撑快门机构的快门单元壳体。 可旋转体与快门连接，用于将快门卷绕到充电位置。 快门驱动弹簧还与快门机构连接以驱动快门，并且保持构件与可旋转体联接，用于将快门机构保持在充电位置。 承载驱动齿轮的驱动轴通过传动齿轮和离合器联接到旋转体。 弹簧与离合器联接以沿着用于释放传动齿轮和可旋转体之间的接合的方向推动离合器。 驱动齿轮具有在其周向间隔相邻的间隔的平面部分，使得当可旋转体被保持时驱动齿轮和传动齿轮之间的接合被释放，使得传动齿轮和离合器可以在 春天，回到初始位置。
-
公开(公告)号：US3973267A
公开(公告)日：1976-08-03
申请号：US534578
申请日：1974-12-19
CPC分类号： G03B7/085
摘要： The present invention relates to an exposure control apparatus for a camera which is so designed that the output terminal of the light measuring circuit of the brightness of the object to be photographed having a photo electric transducing means is connected to one input terminal of an operation amplifier. The output of the photographing information setting circuit, having a variable resistance means for setting other photographing informations than the information of the brightness of the object to be photographed, is connected to the other input terminal of the above mentioned operation amplifier. This is done in such a manner that proper exposure conditions can be obtained by means of the output of the exposure control circuit connected to the output of the above mentioned operation amplifier. Each input signal to the operational amplifier is adjusted by a bias signal which is controlled in accordance with ambient temperature conditions.
摘要翻译： 本发明涉及一种照相机的曝光控制装置，其被设计成使得具有光电转换装置的被拍摄对象的亮度的光测量电路的输出端子连接到运算放大器的一个输入端 。 具有用于设置其他拍摄信息的可变电阻装置的拍摄信息设置电路的输出与被拍摄对象的亮度的信息相连接，连接到上述运算放大器的另一输入端。 这样可以通过连接到上述运算放大器的输出的曝光控制电路的输出来获得适当的曝光条件。 通过根据环境温度条件控制的偏置信号来调整到运算放大器的每个输入信号。
-
-
-
-
-
-
-
-
-
搜索结果
23 条记录 (耗时 0.038 秒)
