Patent ID: 6580527
Filing Date: 2003-06-17
Classification: H04N

Abstract:
A method for point-by-point and line-by-line, opto-electronic scanning of a master, comprising the steps of:chucking the master on a scanner drum; generating a light spot with a scan light for pixel-by-pixel illumination of the master and imaging it onto the master as an illumination spot; modulating the scan light with a content of the master, focusing the scan light with a scanner objective and converting it into an image signal in an opto-electronic scanner element; implementing a feed motion with the illumination spot, the scanner objective and the scanner element in a direction of the rotational axis of the scanner drum for scanning of the master; and when employing scanner drums having different diameters, correcting a size of the illumination spot by modifying an imaging scale of the illumination spot.