| 摘要 |
A camera control and exposure system for cameras of the self-developing type includes "scanning type" shutter blade elements which can be quickly closed to terminate an exposure interval by a magnet actuated closing spring arrangement which is thereafter automatically recocked by way of a motor driven film advance and processing mechanism. A shutter blade latch arrangement maintains the magnet actuated drive spring arrangement in its cocked position while simultaneously maintaining the shutter blade elements in their scene light blocking arrangement prior to exposure. Manual actuation of the latch arrangement permits the shutter blade elements to be driven by an opening spring to their scene light unblocking arrangement thereby commencing an exposure interval. The exposure interval is terminated by deenergizing the electromagnet permitting the closing spring arrangement to drive the shutter blade elements back to their initial scene light blocking arrangement against the bias of the opening spring. The latch arrangement is thereafter driven by way of the motor driven film advance and processing mechanism to recock the magnet actuated drive spring while simultaneously maintaining the shutter blade elements in the scene light blocking arrangement against the bias of the shutter blade opening spring.
|
