公开(公告)号：US06779933B2

公开(公告)日：2004-08-24

申请号：US10422484

申请日：2003-04-24

申请人： Tatsuya Sato ,  Toshiaki Kawanishi ,  Shigeo Nakashima

发明人： Tatsuya Sato ,  Toshiaki Kawanishi ,  Shigeo Nakashima

IPC分类号： G03B926

CPC分类号： G03B7/10 ,  G03B9/06

摘要： A light-quantity adjusting apparatus is disclosed, in which a light-blocking member and an optical filter can be driven with a single actuator, and which can be made compact. The light-quantity adjusting apparatus includes a light-blocking member that changes a quantity of light through an open/close operation within an optical path, an optical filter that can be inserted into and withdrawn from the optical path, independently from the light-blocking member, and a driving mechanism that has a single actuator as a driving source and that drives the light-blocking member and the optical filter. The driving mechanism drives the optical filter by operating the actuator further in an opening direction after the actuator has driven the light-blocking member into an open position, and operating the actuator further in a closing direction after the actuator has driven the light-blocking member into a closed position.

摘要翻译： 公开了一种光量调节装置，其中可以用单个致动器驱动遮光构件和滤光器，并且可以使其变得紧凑。 光量调节装置包括：通过光路内的打开/关闭操作来改变光量的遮光部件，可以插入到光路中并从光路中取出的光学滤光器，其独立于光阻 以及具有单个致动器作为驱动源并驱动遮光构件和滤光器的驱动机构。 所述驱动机构通过在所述致动器将所述遮光部件驱动到打开位置之后沿打开方向进一步操作所述致动器来驱动所述光学滤波器，并且在所述致动器驱动所述遮光部件之后，沿着关闭方向进一步操作所述致动器 进入关闭位置。

公开(公告)号：US06733193B2

公开(公告)日：2004-05-11

申请号：US10359139

申请日：2003-02-06

申请人： Kazuo Kamata

发明人： Kazuo Kamata

IPC分类号： G03B926

CPC分类号： G03B9/26

摘要： A shutter device has a front blade which is biased by a spring to a closed position for closing an exposure aperture, and a rear blade biased by a spring to an open position for opening the exposure aperture. A shutter drive lever kicks the front blade and the rear blade successively while moving to one direction. As soon as the front blade opens the exposure aperture, the rear blade closes the exposure aperture. And while the rear blade is biased by the spring to return to the initial position before opening the exposure aperture, the front blade is biased by the spring to close the exposure aperture. When the front blade and the rear blade return to the initial position by the urge of the spring, the two blades return with partly overlapped each other.

摘要翻译： 快门装置具有由弹簧偏压到闭合位置以闭合曝光孔的前叶片，以及由弹簧偏压到用于打开曝光孔的打开位置的后叶片。 快门驱动杆在向一个方向移动的同时先后顺序踢前刀片和后刀片。 一旦前刀片打开曝光孔，后刀片就会关闭曝光孔。 而当打开曝光孔之前后刀片被弹簧偏压回到初始位置时，前刀片被弹簧偏压以关闭曝光孔。 当前刀片和后刀片通过弹簧的冲击而返回到初始位置时，两个刀片彼此部分重叠地返回。