Patent · US Expired

Compact multibeam laser light source and interleaving raster scan line method for exposing printing plates

US6784912B2 · kind B2 · utility

3Cited by

8References

25Claims

0Family size

Assignee

Heidelberger Druckmaschinen AG · DE

Inventors

Bernard Beier · Ladenburg, DE
Uwe Ernst · Mannheim, DE
Bernd Vosseler · Heidelberg, DE

Key dates

Filing date	Jun 12, 2001
Grant date	Aug 31, 2004
Priority date	—
Expiry date	Aug 28, 2021

Classification

Technology area (CPC H)Electricity
CPC primaryH04N1/06
WIPO fieldAudio-visual technology
WIPO sectorElectrical 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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.