Compact multibeam laser light source and interleaving raster scan

US7330203B2 · kind B2 · utility

Assignee

• Heidelberger Druckmaschinen AG · DE

Inventors

• Bernhard Beier · Ladenburg, DE
• Uwe Ernst · Mannheim, DE
• Bernd Vosseler · Heidelberg, DE

Key dates

• Filing date: Jul 20, 2004
• Grant date: Feb 12, 2008
• Expiry date: Oct 5, 2024

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04N1/06
• WIPO field: Audio-visual technology
• WIPO sector: Electrical engineering

Abstract

An individually drivable array of single stripe laser diodes is proposed for imaging printing plates. An imaging optics is used to produce n image points which have a spatial interval l between adjacent points. An interleaving raster scan line method is indicated, which, given proper selection of the increment, enables each dot to be exposed exactly once.