| 摘要 |
An imaging device ( 10 ) for a printing form ( 12 ), in particular in a printing unit ( 82 ) of a printing press ( 84 ), having at least one light source ( 14 ) and an imaging optics ( 18 ) for projecting the at least one light source ( 14 ) onto the printing form ( 12 ), at least one optical element ( 20 ), in particular a lens, of the imaging optics ( 18 ), being movable by way of an actuator element ( 48 ), and the imaging optics ( 18 ) including one sensor ( 24 ) for measuring the actual position of the optical element ( 20 ), the sensor having one coil ( 26 ) and at least one sensor target ( 28 ). The sensor ( 24 ) is assigned to a control element ( 66 ) for adjusting the position of the optical element ( 20 ) via the actuator element ( 48 ), so that a highly precise, dynamic positioning of the optical element ( 20 ) can be achieved.
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