Apparatus for scanning masters

An apparatus for point-by-point and line-by-line, opto-electronic scanning of a master, comprising:

• a scanner drum for chucking a master to be scanned;
• an illumination unit for generating an illumination spot with a scan light on the master;
• a scanner objective;
• a scanner element for converting the scan light modulated with a content of the master and focused with the scanner objective into an image signal;
• a feed support at which the illumination unit, the scanner objective and the scanner element are arranged, whereby the feed support implements a feed motion in a direction of a rotational axis of the scanner drum for scanning of the master;
• the illumination unit comprises a light conductor aligned substantially in a direction of a rotational axis of the scanner drum and having a light exit face for generating a light spot and a matching objective for imaging the light spot onto the master as the illumination spot;
• and
• at least a sub-section of the light conductor is seated inclinable by small angles relative to the rotational axis in the region of the light exit face for fine adjustment of optical beam paths, as a result whereof the illumination spot is displaced on the scanner drum.