| 摘要 |
A photographic camera with a scanner for sensing perforations on a roll of film used for indexing film frames. The scanner has electrical contacts cooperating with a printed circuit board oriented parallel to the motion of the scanner. The contacts perform switching functions to control electrical elements on the camera. Camera exposure and film advance can be interlocked. A lever can be tensioned by depressing an exposure release member. The lever is held by an abutment and released when the lever moves away from the abutment. To take delayed exposures for self-photographs, the lever can be held by a mechanical or electrical timing mechanism for a predetermined time interval after the exposure release member is depressed. The camera parts are preferably made of electrically insulating plastic material through injection molding. |
