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    • 1. 发明授权
    • Motion picture camera
    • 电影摄影机
    • US4410247A
    • 1983-10-18
    • US295422
    • 1981-08-24
    • Noritsugu HirataHiroyuki Takimoto
    • Noritsugu HirataHiroyuki Takimoto
    • G03B19/18G03B1/00
    • G03B19/18
    • A three-motion picture camera is equipped with a shutter opening angle adjusting device capable of changing the opening angle of a shutter including a plurality of concentrically disposed shutter blades from 0.degree. to a predetermined opening angle by changing on relative position of the shutter blades. The opening angle adjusting device includes a mechanism for varying the relative position of the shutter blades, a cam mechanism for actuating said varying mechanism, and a motor for exclusively actuating the cam mechanism. The adjusting device is further provided with a control device for detecting the speed of the motor and controlling the rotational speed of the motor to a substantially constant speed, whereby the camera can perform fading photography which is assured of fading time and overlap photography having a fading effect.
    • 三体摄像机配备有快门开启角度调节装置,其能够通过改变快门叶片的相对位置,将包括多个同心设置的快门叶片的快门的打开角度从0度改变到预定打开角度。 开放角度调节装置包括用于改变快门叶片的相对位置的机构,用于致动所述可变机构的凸轮机构和用于专门致动凸轮机构的马达。 该调节装置还具有用于检测电动机的速度并将电动机的转速控制在基本上恒定的速度的控制装置,由此照相机可以进行衰落摄影,其确保衰落时间并重叠具有衰落的摄影 影响。
    • 4. 发明授权
    • Release device of motion picture camera
    • 电影摄影机的释放装置
    • US4072409A
    • 1978-02-07
    • US685190
    • 1976-05-11
    • Noritsugu HirataTomoshi TakigawaKazuo Ishikawa
    • Noritsugu HirataTomoshi TakigawaKazuo Ishikawa
    • G03B19/18G03B17/46G03B1/00
    • G03B17/46
    • A motion picture camera with a release device capable of selective control of rotative movement of the shutter blade in the camera for a normal motion picture sequence and for a single frame slot depending upon the position of a selector therefor. The release device is provided with the single stop lever arranged between the shutter blade and a release member to be pivoted in either of two planes, perpendicular to each other. For a motion picture sequence, as the pivotal movement of the stop lever is limited to only one of the planes, it is retained in operative engagement with the release member so long as the latter is pressed, thus permitting a number of revolutions of the shutter blade in sequence. When the selector is manually switched to the single frame position, a disengage actuator is brought into cooperation with both of the shutter blade and the stop lever in such a manner that just after an exposure aperture is covered by the shutter blade to terminate a single frame exposure, the disengage actuator causes a pivotal movement of the stop lever in the other plane which in turn causes the stop lever to be taken out of the operative engagement with the release member as the stop lever is pivoted in the first-named plane regardless of the fact that release member is pressed. This results in operative engagement of the stop lever with the shutter blade to stop the shutter blade in the exposure aperture closed position.
    • 一种具有释放装置的电影摄像机,其能够根据其选择器的位置,选择性地控制照相机中的快门叶片对正常运动图像序列和单个帧时隙的旋转运动。 释放装置设置有设置在快门叶片和释放构件之间的单个止动杆,以在彼此垂直的两个平面中的任一个中枢转。 对于运动画面序列,由于止动杆的枢轴运动仅限于其中一个平面,所以只要按压它们就可以与释放构件保持有效接合,从而允许快门的转数 叶片顺序。 当选择器被手动地切换到单个框架位置时,解除致动器与快门叶片和止动杆两者相配合,使得在曝光孔被快门叶片覆盖以终止单个框架之后 脱离致动器导致止动杆在另一平面中的枢转运动,这又导致止动杆在与第一命名平面枢转的同时使止动杆从与释放构件的操作接合中脱离而不管 释放构件被按压的事实。 这导致止动杆与快门叶片的操作接合以将快门叶片停止在曝光孔关闭位置。
    • 7. 发明授权
    • Motion picture camera
    • 电影摄影机
    • US3955887A
    • 1976-05-11
    • US472475
    • 1974-05-22
    • Masamichi ToyamaTomoshi TakigawaNoritsugu HirataKeiichi SakaguchiToshikazu Ichiyanagi
    • Masamichi ToyamaTomoshi TakigawaNoritsugu HirataKeiichi SakaguchiToshikazu Ichiyanagi
    • G03B9/10G03B19/18G03B1/00
    • G03B19/18G03B9/10
    • 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.
    • 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。
    • 9. 发明授权
    • Motion picture camera
    • 电影摄影机
    • US4240720A
    • 1980-12-23
    • US934335
    • 1978-08-16
    • Noritsugu HirataHiroyuki Takimoto
    • Noritsugu HirataHiroyuki Takimoto
    • G03B17/38G03B19/18G03B31/02
    • G03B17/38G03B19/18
    • A motion picture camera has a film receiving chamber with an image recording location and a sound recording location. When a sound film is loaded, it is guided to through both locations whereas when a silent film is loaded, it is guided through only the image recording location. A first film feed device and a second film feed device are provided; the first of which transports the film at the image recording location intermittently and the second film feed device transports the film at the sound recording location at a substantially constant speed. Apparatus are provided to detect disorder or abnormal change in operations of the camera and to stop the motion of the camera when such change occurs.
    • 电影摄像机具有具有图像记录位置和声音记录位置的胶片接收室。 当加载了一个声音胶片时,它被引导到两个位置,而当无声电影被加载时,它仅被引导到图像记录位置。 提供第一胶片馈送装置和第二胶片馈送装置; 其中第一个胶片在图像记录位置上间歇地传送胶片,第二胶片馈送装置以基本上恒定的速度在录音位置传送胶片。 提供了用于检测相机操作的无序或异常变化的装置,并且当发生这种变化时停止相机的运动。
    • 10. 发明授权
    • Self timer device for motion picture camera
    • 自拍定时装置用于电影摄影机
    • US4057334A
    • 1977-11-08
    • US664364
    • 1976-03-05
    • Kazuo IshikawaNoritsugu HirataTomoshi TakigawaYasutsugu Yamada
    • Kazuo IshikawaNoritsugu HirataTomoshi TakigawaYasutsugu Yamada
    • G03B17/38G03B19/18G03B1/00
    • G03B17/38G03B19/18
    • The present invention relates to a self-timer device for a motion picture camera which presents a second motor switch connected in series with the first motor switch to be closed by means of the release means at the time of the camera release, the first timer means including a governer mechanism for actually starting photographing, closing the second motor switch after the elapse of a certain determined time from the automatic photographing setting and the second timer means for stopping the camera release after the elapse of a certain determined time from the actual starting of photographing, so as to open the first motor switch and terminate the photographing. In this manner the first timer means is driven by means of a spring means as a driving source while the second timer means is driven by means of the camera driving motor as driving source and controls the timing of the start and stop of the photographing at the time of the automatic photographing.
    • 本发明涉及一种用于电影摄像机的自拍装置,其提供在相机释放时通过释放装置与第一电动机开关串联连接的第二电动机开关,第一定时装置 包括用于实际开始拍摄的Governer机构,在从自动拍摄设置经过一定确定时间之后关闭第二电动机开关,以及用于在从实际开始之后经过一定确定时间后停止相机释放的第二定时器装置 拍摄,以便打开第一个电机开关并终止拍摄。 以这种方式,通过作为驱动源的弹簧装置驱动第一计时器装置,同时借助于相机驱动电机作为驱动源来驱动第二计时器装置,并且控制第一计时器装置的拍摄开始和停止的定时 自动拍摄的时间。