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    • 7. 发明授权
    • Flash device
    • 闪存设备
    • US4982210A
    • 1991-01-01
    • US349843
    • 1989-05-10
    • Takahisa ShimadaTogo TeramotoToshihiko TaniguchiNobuharu MurashimaMakoto Yanai
    • Takahisa ShimadaTogo TeramotoToshihiko TaniguchiNobuharu MurashimaMakoto Yanai
    • G03B15/05G03B15/03
    • G03B15/05G03B2215/051
    • A flash device in which a mechanism for shifting a light emitting section up and down and a mechanism for changing over the light distribution angle can be automatically controlled by means of a single motor and which occupies a comparatively small spacing when mounted on a camera. The flash device includes a bidirectional drive motor mounted in a body member, and a shiftable member having the light emitting section thereon. The shiftable member is shifted by rotation of the motor in either direction between a retracted inoperative position and a projected operative position. The light distribution angle of the light emitting section is changed over by continued energization of the motor after the shiftable member is moved from the inoperative to the operative position. A friction mechanism is interposed in a motion transmitting mechanism from the motor to the shiftable member. The motor and the motion transmitting mechanism are disposed at a location within the body member at which they are located, when mounted on a camera, above a spacing sidewardly of a central portion of the camera in which a pentagonal prism is disposed.
    • 其中用于使发光部分上下移动的机构和用于改变配光角度的机构的闪光装置可以通过单个电动机自动控制,并且当安装在照相机上时占据相对较小的间隔。 闪光装置包括安装在主体部件中的双向驱动马达和在其上具有发光部的可移动部件。 可移动构件通过电动机在缩回非操作位置和投影操作位置之间的任一方向上的旋转而移动。 在可移动构件从不工作状态移动到操作位置之后,通过电动机的继续通电来改变发光部分的配光角度。 摩擦机构插入到运动传递机构中,从马达到可移动构件。 当安装在相机上时,马达和运动传递机构设置在它们所位于的主体部件内的位置,在设置有五边形棱镜的照相机的中心部分的一侧的间隔的上方。