Motion picture camera with improved frame count indicator
    11.
    发明授权
    Motion picture camera with improved frame count indicator 失效
    具有改进的帧数指示器的电影摄影机

    公开(公告)号:US3977776A

    公开(公告)日:1976-08-31

    申请号:US607056

    申请日:1975-08-22

    CPC分类号: G03B1/66

    摘要: Pulses are furnished which each indicate transport of a frame. The pulses are counted on a BCD counter. Selected outputs of the counter are connected to the inputs of coupling stages, each including a JK flip-flop. Each flip-flop changes state for a predetermined count on the counter. When each flip-flop changes state, a corresponding indicator lights up, thereby furnishing an indication to the photographer of how many frames have been transported.

    摘要翻译: 每个脉冲都指示一帧的传输。 脉冲在BCD计数器上计数。 计数器的选定输出端连接到耦合级的输入端,每一个都包括一个JK触发器。 每个触发器在计数器上改变预定计数的状态。 当每个触发器改变状态时,相应的指示灯亮起,从而向拍摄者提供已经传送了多少帧的指示。

    Circular magazine for photographic transparencies
    12.
    发明授权
    Circular magazine for photographic transparencies 失效
    圆形杂志用于摄影透明胶片

    公开(公告)号:US3968878A

    公开(公告)日:1976-07-13

    申请号:US434293

    申请日:1974-01-17

    IPC分类号: G03B23/06

    CPC分类号: G03B23/06

    摘要: A round tray for photographic transparencies has a bottom wall, a ring-shaped inner wall and radially extending partitions which are rigid with the two walls and define an annulus of compartments for transparencies. At least a portion of each partition resembles a wedge or sector whose width increases radially outwardly so that the parts of compartments between such portions have a constant width to thus prevent excessive changes in orientation of inserted transparencies. The transparencies may be yieldably held in the respective compartments by discrete leaf springs which are secured to a cover overlying the bottom wall and separably attached to the inner wall, or by bifurcated elastic parts of the partitions. The elastic parts may have wedge-like protuberances engaging the transparencies in the adjacent compartments with a force which suffices to prevent unintentional ejection or misalignment of transparencies but is too weak to prevent a slide changer from expelling a transparency from, or from returning a transparency into, the respective compartment.

    摘要翻译: 用于照相投影片的圆形托盘具有底壁,环形内壁和径向延伸的隔板,其与两个壁是刚性的,并且限定了用于透明度的隔间的环形空间。 每个分区的至少一部分类似于其宽度径向向外增加的楔形或扇形,使得这些部分之间的隔间部分具有恒定的宽度,从而防止插入的透明胶片的取向的过度变化。 透明胶片可以通过离散的片簧被可靠地保持在相应的隔室中,该片簧被固定到覆盖在底壁上并且可分离地附接到内壁的盖上,或者通过分隔件的分叉的弹性部分。 弹性部件可以具有楔形突起,其具有足以防止幻灯片的无意的弹出或未对准的力的力,但是太弱以至于不能防止滑块更换器从透明体中排出透明物或将透明度返回到 ,相应的隔间。