Abstract: A device for resetting the CCD sensor unit 3 is provided for a camera comprising a CCD sensor unit 4 and a shutter 3 in the imaging beam path. This device for resetting the CCD sensor unit 3 comprises a control unit 5 which resets the CCD sensor unit with a time delay and/or with time monitoring after the opening of the shutter. Two or more such cameras can be combined to form a camera system for recording images which are matched to one another in time. A method is specified for operation of a camera and a camera system, in which the CCD sensor unit is in this case reset after opening of a mechanical shutter 3 in the imaging beam path.

Abstract: An electromagnetically actuatable valve is proposed, which serves as a fuel injection valve for fuel injection systems in internal combustion engines. The valve includes a valve housing of ferromagnetic material, at least one magnetic coil mounted on a core of ferromagnetic material, and an armature arranged to actuate a valve closing element which cooperates with a valve seat. The armature protrudes beyond a ferromagnetic annular disk supported on a support shoulder of the valve housing and a stop disk of hard, nonmagnetic material is arranged in the annular groove of the annular disk such that when the armature is resting on the stop disk, a remnant air gap is formed in the axial direction between the annular disk and the armature.