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    • 9. 发明专利
    • High speed camera
    • 高速摄像机
    • JPS59204034A
    • 1984-11-19
    • JP7901683
    • 1983-05-06
    • Mitsubishi Heavy Ind Ltd
    • MORI SHIYUNICHI
    • G03B39/04
    • G03B39/04
    • PURPOSE:To obtain a perfect picture by photographing of once by providing a filter placed on a concentric circle of a rotary disk provided so as to cross an optical path extending from an object to a film surface, and a rotating mechanism. CONSTITUTION:A is a body whose object is an internal combustion chamber of an internal combustion engine, and a light emitting quantity is varied periodically in accordance with a rotation of a crank shaft B. A rotary disk 12 is provided so as to cross an optical path between a focus adjusting lens 3 and a field lens 4. Plural kinds of filters 13, whose light transmitting quantities are different from each other, are attached onto a concentric circle of the rotary disk 12. As for a revolving shaft 14 of the rotary disk 12, a pulley 15 is stuck as one body, and a pulley 16 is attached to the shaft B of the body A. While the shaft B makes one rotation, an ignition is executed once, therefore, the light emitting quantity of the body A is varied greatly. Accordingly, as for the filters 13, they are set so that the filter whose light transmitting quantity is small when the shaft B is at a position immediately before the ignition, the filter whose light transmitting quantity is large at the time of the ignition, and the filter whose light transmitting quantity becomes smaller little by little after the ignition are placed on the optical path, respectively.
    • 目的:通过提供放置在与从物体延伸到膜表面的光路交叉设置的旋转盘的同心圆上的过滤器和旋转机构来获得一次完美的图像。 构成:A是其物体是内燃机的内燃室的主体,并且发光量根据曲轴B的旋转而周期性地变化。旋转盘12设置成与光 聚焦调节透镜3和场透镜4之间的路径。其透光量彼此不同的多种滤光器13被附接到旋转盘12的同心圆上。对于旋转盘14的旋转轴14 圆盘12,滑轮15被卡住为一体,滑轮16安装在主体A的轴B.在轴B旋转的同时,点火一次,因此,本体的发光量 A变化很大。 因此,对于滤波器13,将它们设定为使得当轴B处于紧靠着点火之前的位置处的透光量小的点火时的透光量较小的滤光器,点火时的透光量大的滤光器,以及 将点火后的光透过量逐渐变小的滤光器分别设置在光路上。