초록 ▼

Each slide is comprised of an exposure slit defining lamella moved on parallel swinging arms in front of the image aperture, whereby the arms overlap each other in part, as well as the lamella to provide additionally shutter functions for covering portions of the aperture which are to be covered but

Each slide is comprised of an exposure slit defining lamella moved on parallel swinging arms in front of the image aperture, whereby the arms overlap each other in part, as well as the lamella to provide additionally shutter functions for covering portions of the aperture which are to be covered but are not covered by the lamella in any phase of movement or position of deployment.

대표청구항 ▼

In a double slide focal plane shutter for photographic cameras, a multiple Element slide disposed in front of an image aperture defined by partitioning means or the like in the cameras, the slide comprising: a lamella covering only a portion of the image aperture in the camera, and having a slit def

In a double slide focal plane shutter for photographic cameras, a multiple Element slide disposed in front of an image aperture defined by partitioning means or the like in the cameras, the slide comprising: a lamella covering only a portion of the image aperture in the camera, and having a slit defining edge; a plurality of flat arms disposed in at least partially overlapping extension parallel to each other, at least two of the arms having one end pivotally linked to said lamella; a plurality of spaced apart pivot points for pivotally mounting respectively one end of each of said arms, including the respective other ends of the said two arms, to a stationary portion of and in the camera housing, so that all of the arms being linked to the lamella operate as a parallelogram-like linkage for the lamella and the lamella is moved in front of the aperture whereby the edge retains its orientation; and the arms together and in each position covering also that portion of the aperture opposite the said slit defining edge and not covered by the lamella when in front of the aperture, whereby each of said arms covers a portion of the aperture not covered by any of the other arms.