Motion picture camera with dissolve mechanism
    1.
    发明授权
    Motion picture camera with dissolve mechanism 失效
    电影摄影机具有溶解机制

    公开(公告)号:US3973841A

    公开(公告)日:1976-08-10

    申请号:US595680

    申请日:1975-07-14

    IPC分类号: G03B19/26 G03B21/36

    CPC分类号: G03B19/26

    摘要: A motion picture camera wherein the trigger of the camera release is movable from an extended position to a second position in which it starts the camera motor, and beyond the second position to thereby cause an auxiliary tooth to enter a gap in the annulus of teeth at the periphery of a program wheel which forms part of the mechanism for making exposures with dissolve. The auxiliary tooth is thereby moved into the path of cyclical movement of the pallet on a pawl which is driven whenever the motor is on whereby the pallet can move the program wheel from a starting position and thereupon cooperates with the teeth of the program wheel to rotate the latter through one revolution during which the program wheel initiates the making of exposures with fade-out and subsequent rearward transport of film frames which were exposed with fade-out, and prepares the motor for renewed forward transport of such film frames with simultaneous exposure with fade-in. The renewed forward transport is effected by depressing the trigger. The motor remains in operation while the user moves the trigger beyond the second position so that the making of exposures with fade-out can follow, without any interruption, the making of normal exposures.

    摘要翻译: 一种电动摄像机,其中相机释放的触发器可从延伸位置移动到第二位置,在该第二位置,其启动相机电动机,并且超出第二位置,从而使辅助齿进入齿环中的间隙 程序轮的外围,其形成用于溶解曝光的机构的一部分。 辅助齿由此移动到托盘在棘爪上的循环运动的路径,每当马达处于驱动状态时,该爪被驱动,由此托盘可以从起始位置移动程序轮,并且随后与程序轮的齿配合以旋转 后者通过一次旋转,在此期间,程序轮开始进行曝光,随着淡出和随后的向后传输,随着淡出曝光的胶片框架的曝光,并准备电动机再次向前传送这样的胶片框架同时曝光 淡入。 更新的正向运输是通过抑制触发来实现的。 当用户将触发器移动到第二位置之后,电动机保持运行,使得可以随时进行具有淡出的曝光,而不会中断正常曝光。