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公开(公告)号：US3955887A
公开(公告)日：1976-05-11
申请号：US472475
申请日：1974-05-22
Applicant: Masamichi Toyama , Tomoshi Takigawa , Noritsugu Hirata , Keiichi Sakaguchi , Toshikazu Ichiyanagi
Inventor： Masamichi Toyama , Tomoshi Takigawa , Noritsugu Hirata , Keiichi Sakaguchi , Toshikazu Ichiyanagi
Abstract: The present invention refers to a motion picture camera which is characterized in that respectively on the driving shaft to be rotated by means of a driving power from the driving motor and on the shutter shaft to be rotated by means of a rotating power of the above mentioned driving shaft elliptical gears in mutual engagement with each other are provided in such a manner that the ratio of the angular speed to be communicated between the driving shaft and the shutter shaft is continuously increased and decreased while on the above mentioned shutter shaft a non-circular cam to reciprocate the claw for feeding film is provided in such a manner that while the shutter blade is opened the shutter shaft rotates slowly and further the claw for feeding film stops feeding film whereby the effective proper opening angle of the shutter blade is changed largely by means of the above mentioned pair of elliptical gears and the non-circular cam.
Abstract translation: 本发明涉及一种电动摄像机，其特征在于，驱动轴分别通过来自驱动电动机的驱动力和活门轴旋转，借助于上述旋转动力旋转 彼此相互接合的驱动轴椭圆齿轮被设置成使得驱动轴和闸门轴之间要连通的角速度的比率连续增加和减小，而在上述闸门轴上是非圆形的 提供用于进给胶片的往复运动的凸轮以这样的方式设置，即当快门叶片打开时，快门轴缓慢旋转，进一步的进给胶片的爪停止进给胶片，由此快门叶片的有效适当的打开角度大大改变 上述一对椭圆齿轮和非圆形凸轮的装置。
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公开(公告)号：US3951531A
公开(公告)日：1976-04-20
申请号：US529752
申请日：1974-12-05
Applicant: Hiroshi Nakai , Tetsuo Nishizawa , Ziro Sekine
Inventor： Hiroshi Nakai , Tetsuo Nishizawa , Ziro Sekine
Abstract: A rotary shutter of a motion picture camera comprises a pair of fan-shaped sectors which are capable of changing the angle of opening formed thereby. The sector shaft is rotated through a gear train by a claw driving shaft which in turn is rotated by a driving motor. The gear train comprises a pair of gear train means either of which is selectively used to transmit the rotation of the claw driving shaft to the sector shaft. The ratio of the rate of revolution of one shaft to that of the other is changed by changing the gear train means. A switchover means is provided to switchover the gear train from one to the other. The switchover means is associated with means for changing the angle of opening formed by the sectors. In the mode of the prolonged time exposure, the speed of revolution of the sector is reduced to the half of that of the sector in the mode of the normal motion picture. The claw is caused to be out of engagement with the perforation of the film during every other reciprocal movement of the claw so that the film will remain stationary during every other reciprocal movement of the claw to effect a prolonged exposure time.
Abstract translation: 电影摄像机的旋转快门包括能够改变由此形成的开口角度的一对扇形扇区。 扇形轴通过爪驱动轴通过齿轮系旋转，该爪驱动轴又由驱动电机旋转。 齿轮系包括一对齿轮系，其中任何一个选择性地用于将爪驱动轴的旋转传递到扇形轴。 通过改变齿轮组装置来改变一个轴的转速与另一个轴的转速之比。 提供切换装置以将齿轮系从一个切换到另一个。 切换装置与用于改变扇区形成的开口角度的装置相关联。 在长时间曝光的模式中，在正常运动图像的模式中扇区的转速降低到扇区的转速。 在爪的每隔一个往复移动期间，使爪与胶片的穿孔脱离接合，使得胶片在爪的每隔一个往复移动期间保持静止，以实现长时间的曝光时间。
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公开(公告)号：US3898000A
公开(公告)日：1975-08-05
申请号：US42658573
申请日：1973-12-20
Applicant: YASHICA CO LTD
Inventor： KOBAYASHI KATSUMI , ENOMOTO NOBUAKI
CPC classification number: G03B9/10
Abstract: A motion picture camera has a shutter arrangement that provides for exposing each frame of film for a sub-interval of time during a portion of which a rotatable shutter blade is stationary. Circuit means provide an oscillating signal that defines the subinterval of time during each period of oscillation. Means are provided for adjusting the duration of the sub-interval of time so that for relatively low light level conditions the exposure time per frame can be increased.
Abstract translation: 电影摄像机具有快门装置，其在可旋转快门叶片的一部分处于静止状态的同时间隔期间提供曝光每个胶片的框架。 电路装置提供了在每个振荡周期期间限定时间间隔的振荡信号。 提供了用于调整子时间间隔的持续时间的装置，使得对于相对低的光级条件，可以增加每帧的曝光时间。
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公开(公告)号：US3885864A
公开(公告)日：1975-05-27
申请号：US43297174
申请日：1974-01-14
Applicant: FRIESEN DIETRICH P
Inventor： FRIESEN DIETRICH P
Abstract: A method of and apparatus for projecting a spliced film or tape having picture frames and a spliced frame, including the steps of and means for projecting successive picture frames along first or second parallel projection paths as they are moved into first or second projecting positions thereon, combining the first and second projection paths into a common main projection path downstream from the first and second projecting positions, sensing the presence of the spliced frame, and blocking the first projection path when the spliced frame is in the first projecting position and blocking the second projection path when the spliced frame is in the second projecting position.
Abstract translation: 一种用于投影具有图片框架和拼接框架的拼接胶片或胶带的方法和装置，包括以下步骤：当它们移动到其中的第一或第二突出位置时，沿着第一或第二平行投影路径投影连续图像帧的装置， 将第一和第二投影路径组合成从第一和第二突出位置下游的公共主投影路径，感测拼接框架的存在，并且当拼接框架处于第一突出位置时阻挡第一投影路径并且阻挡第二投影路径 当拼接框架处于第二突出位置时的投影路径。
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公开(公告)号：US3854805A
公开(公告)日：1974-12-17
申请号：US39689273
申请日：1973-09-13
Applicant: FUJI PHOTO OPTICAL CO LTD
Inventor： TOBIOKA T
Abstract: A rotary shutter blade is rotated by a shutter driving shaft. An exposure time control mechanism is interposed between the shutter blade and the shutter driving shaft. The exposure time control mechanism is capable of producing a long exposure by intermittently transmitting the rotation of the driving shaft to the shutter blade. The intermittent driving or transmission of rotation is effected by use of a coupling mechanism a part of which is fixed to the shutter blade and the other part of which is fixed to the driving shaft.
Abstract translation: 旋转快门叶片由快门驱动轴旋转。 曝光时间控制机构插入在快门叶片和快门驱动轴之间。 曝光时间控制机构能够通过将驱动轴的旋转间歇地传递到快门叶片而产生长时间的曝光。 旋转的间歇驱动或传递通过使用联接机构来实现，所述联接机构的一部分固定到快门叶片并且其另一部分固定在驱动轴上。
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Patent Agency Ranking
公开(公告)号：US3810692A
公开(公告)日：1974-05-14
申请号：US15969871
申请日：1971-07-06
Applicant: VOCKENHUBER KARL , HAUSER RAIMUND
Inventor： DRASCH J , SCHEIBER R , WESSNER H
Abstract: An electric motor is energizable to rotate a rotary shutter. A release switch is movable between an operative position and an inoperative position. A power supply circuit is adapted to energize the motor when the release switch is in the operative position. Electric braking means are energizable to stop the shutter. Fully electric brake control means are operatively connected to the shutter and arranged to de-energize the braking means when the release switch is in its operative position and to energize the braking means at least temporarily so as to stop the shutter in a predetermined position when the release switch has moved from its operative position to its inoperative position.
Abstract translation: 电动马达能够旋转旋转快门。 释放开关可在操作位置和不工作位置之间移动。 电源电路适于在释放开关处于操作位置时对电动机通电。 电动制动装置可激活以停止快门。 全电动制动控制装置可操作地连接到闸门并且布置成当释放开关处于其操作位置时使制动装置断电并且至少暂时致动制动装置，以便当闸板处于预定位置时将挡板停止在预定位置 释放开关从其操作位置移动到其不工作位置。
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77.发明授权Device concurrently used as an automatic exposure controller and a shutter in a camera 失效作为自动曝光控制器和照相机中的快门一起使用的设备
公开(公告)号：US3807843A
公开(公告)日：1974-04-30
申请号：US31598572
申请日：1972-12-18
Applicant: CANON KK
Inventor： TAKIGAWA T
Abstract: The device is used in a camera having film transport means intermittently advancing a film and a picture taking optical system. A stationary element, having a light transmission factor variable in accordance with the magnitude of an applied voltage, is interposed in the path of light passing through the optical system to the film, and a light beam splitter is positioned between the stationary element and the film to split the light into a beam directed to the film and another beam incident upon a photo-electric converter. A voltage controller connects the converter to the stationary element to control the light transmission factor thereof in accordance with light incident upon the converter. An electrical signal generator, such as a pulse generator, is connected to the film transport means and generates output pulses intermittently in accordance with stepwise advancing of the film by the transport means. The output of the pulse generator is connected to the voltage controller to control the operating time of the voltage controller in accordance with operation of the film transport means to interrupt operation of the controller, to block light transmission through the stationary element, during each stepwise advance of the film by the film transport means. Thereby, the stationary element functions simultaneously as an automatic exposure control and as a shutter for the camera.
Abstract translation: 该装置用于具有间歇地推进胶片和拍摄光学系统的胶片传送装置的相机中。 具有根据施加电压的大小变化的光透射系数的固定元件被插入到通过光学系统的光的路径中，并且光束分离器位于固定元件和膜之间 将光分成指向胶片的光束和入射到光电转换器上的另一光束。 电压控制器将转换器连接到固定元件，以根据入射到转换器上的光来控制其透光率。 诸如脉冲发生器的电信号发生器连接到胶片传送装置，并根据传送装置逐步前进胶片间歇地产生输出脉冲。 脉冲发生器的输出连接到电压控制器，以根据胶片传送装置的操作控制电压控制器的操作时间，以中断控制器的操作，以阻止在每个逐步提前期间通过静止元件的光透射 的电影由电影传输手段。 因此，固定元件作为自动曝光控制并且作为相机的快门同时工作。
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公开(公告)号：US3768895A
公开(公告)日：1973-10-30
申请号：US3768895D
申请日：1972-06-23
Applicant: AGFA GEVAERT AG
Inventor： STEPPI H
Abstract: A motion picture camera or projector wherein the rotor of an electric motor constitutes the shutter. The motor has a flat housing a portion of which is located between the picture taking lens and the light-admitting opening of a film guide and has a second opening which admits scene light from the lens to the opening of the guide or vice versa in predetermined angular positions of the shutter. The shutter is rigid with a cam which actuates the claw pull-down.
Abstract translation: 一种电动摄像机或投影仪，其中电动机的转子构成快门。 电动机具有平坦的壳体，其一部分位于摄像镜头和胶片引导件的光入口之间，并且具有第二开口，其允许从镜头到导轨的开口的场景光或反之亦然， 快门的角位置。 闸门是刚性的，其具有致动爪下拉的凸轮。
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公开(公告)号：US3764199A
公开(公告)日：1973-10-09
申请号：US3764199D
申请日：1972-03-07
Applicant: AGFA GEVAERT AG
Inventor： NEUDECKER K
CPC classification number: G03B9/10
Abstract: An adjustable shutter for motion picture cameras wherein a disk having a light-admitting aperture rotates with two blades which are movable relative to the disk to thereby overlie varying portions of the aperture. The disk carries a leaf spring having a radially extending slot for a follower pin which extends into arcuate cam slots of the blades and is in frictional engagement with the leaf spring. A shifter is reciprocable in the body of the camera and has two displacing cams one of which can move the follower pin radially outwardly and the other of which can move the follower pin radially inwardly to thereby turn the blades relative to the disk while the disk and the blades rotate. The shifter can be moved by a program wheel to effect gradual changes in the aperture size during the making of exposures with fade-in and/or fade-out effect.
Abstract translation: 一种用于运动摄像机的可调节快门，其中具有光入口的盘旋转，其中两个叶片可相对于盘移动，从而覆盖孔的不同部分。 该盘带有一个板簧，其具有用于随动销的径向延伸的槽，其延伸到叶片的弓形凸轮槽中并且与板簧摩擦接合。 移位器可在照相机的主体中往复运动，并且具有两个位移凸轮，其中一个位移可以径向向外移动从动销，另一个位置可径向向内移动从动销，从而相对于盘旋转叶片， 叶片旋转。 移位器可以通过程序轮移动，以在进行具有淡入淡出效果和/或淡出效果的曝光过程中实现光圈尺寸的逐渐变化。
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公开(公告)号：US3761168A
公开(公告)日：1973-09-25
申请号：US3761168D
申请日：1972-02-02
Applicant: BELL KO ON CO LTD
Abstract: A motion picture display speed shifting device includes a rockable arm having a film perforation engaging claw and a follower element. Cams are provided to engage the follower element and pivot the arm in a plurality of directions whereby the arm is actuated to cause the claw thereon to engage and disengage the perforation of the motion picture film and thereby move the motion picture film past a projector aperture. Biasing means are provided to selectively bias the follower element into engagement with either one of two rotary cam wheels to thereby vary the motion picture feed speed.
Abstract translation: 电影显示变速装置包括具有胶片穿孔接合爪和从动元件的可摆动臂。 凸轮设置成接合从动元件并且在多个方向上枢转臂，由此臂被致动以使其上的爪接合和分离电影胶片的穿孔，从而使电影胶片移动通过投影仪孔。 提供偏置装置以选择性地将从动元件偏置成与两个旋转凸轮轮中的任一个接合，从而改变运动图像进给速度。
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