CAMERA EXPOSURE MECHANISM

摘要

A small miniature camera employs as a primary operating mechanism a spring biased shutter bellcrank which is arranged so one of its arms or pawls operates a pivoted shutter blade and cooperates with the other pawl to control the film advance mechanism to prevent double exposures. Also, the disposition of the pawls is such that one of them may be employed to trigger impulse operated flash cubes in timed relationship with the shutter opened by the other pawl. To avoid complex indexing mechanisms within such a camera an optical indexing feature is provided which employs a separate light path to the edge of a film strip that is controlled by the shutter to mark the developed film strip with a reference mark for subsequent automatic film processing procedures.