BLENDENEINSTELLVORRICHTUNG FUER FOTOGRAFISCHE ODER KINEMATOGRAFISCHE KAMERAS

摘要

A camera shutter has at least one diaphragm leaf which is mounted for angular displacement about a pivot axis. A cam element is mounted for rotation on the output shaft of a motor and is provided either with a planar surface formed with a spiral cam groove or with a conical surface formed with a conically spiral cam groove. A pin is fixed to the diaphragm leaf at a location laterally offset from the pivot axis and tracks the cam groove.