Patent · US Expired

Multi-beam scanning apparatus

US6618070B2 · kind B2 · utility

6Cited by

9References

22Claims

0Family size

Assignee

Heidelberger Druckmaschinen AG · DE

Inventors

Jorg-Achim Fischer · Kiel, DE
Thomas Jacobsen · Kiel, DE

Key dates

Filing date	Dec 17, 2001
Grant date	Sep 9, 2003
Priority date	—
Expiry date	Jan 30, 2022

Classification

Technology area (CPC H)Electricity
CPC primaryH04N1/1911
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

A multi-beam scanning apparatus is provided for use with a recording medium that is located on an at least partially cylindrical inner bearing face of a recording device, in which the bearing face has a cylinder axis. The scanning apparatus includes a scanner unit for scanning the recording medium with at least one exposure beam. The scanner unit includes an acousto-optical element that is either an acousto-optical deflector or an acousto-optical modulator. The scanner unit includes a deflection element that is axially displaceable and rotatable relative to the cylinder axis of the bearing face. The acousto-optical element is mounted to rotate together with the deflection element about the cylinder axis.

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