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1.发明授权Aperture mechanism having a blade positionable in an open position by a hard stop 失效光圈机构，其具有可通过硬停止定位在打开位置的刀片
公开(公告)号：US5432576A
公开(公告)日：1995-07-11
申请号：US177668
申请日：1994-01-05
摘要： An aperture mechanism includes at least one blade moveable along a path between a closed position and at least one open position. At least one hard stop is moveable between a first position, out of the blade path, and a second position in the blade path to position the blade in the open position when an edge of the blade contacts the hard stop. The hard stop is located out of a plane of movement of the blade when the hard stop is in the first position to simplify and make more accurate the positioning of the blade in the open position.
摘要翻译： 孔机构包括至少一个沿着关闭位置和至少一个打开位置之间的路径可移动的刀片。 至少一个硬止动件可以在叶片路径中的第一位置和叶片路径中的第二位置之间移动，以便当叶片的边缘接触硬止动件时将叶片定位在打开位置。 当硬止动件处于第一位置时，硬止动件位于叶片的运动平面之外，以简化刀片在打开位置的定位。
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公开(公告)号：US5311239A
公开(公告)日：1994-05-10
申请号：US102456
申请日：1993-08-04
CPC分类号： G03B9/24
摘要： A fast-opening shutter includes an actuating member moveable in a one direction for setting an aperture stop and in the opposite direction for setting focus. The camera shutter is then driven to open against the stop independently of movement of the actuating member. According to more specific features, the actuating member first sets the stop and then focuses a camera optical element. After the exposure is completed, the mechanism is reset by further movement of the actuating member in the second or opposite direction.
摘要翻译： 快门开闭器包括可沿一个方向移动的致动构件，用于设置孔径光阑，并且在相反方向上设置聚焦。 然后，驱动相机快门以独立于致动构件的移动而抵靠止动件打开。 根据更具体的特征，致动构件首先设置挡块，然后对照相机光学元件进行聚焦。 曝光完成后，通过致动构件在第二或相反方向上的进一步移动来复位机构。
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