Patent · US Expired

Image-recording device for generating a number of image spots in projection line

US7843480B2 · kind B2 · utility

1Cited by

17References

2Claims

0Family size

Assignee

Heidelberger Druckmaschinen AG · DE

Inventors

Uwe Albrecht · Bitterfeld-Wolfen, DE
Bernard Beier · Ladenburg, DE
Uwe Ernst · Mannheim, DE
Peter Philiep Goos · Troisdorf, DE
Andreas Rupprecht · Mauer, DE
Bernd Vosseler · Heidelberg, DE

Key dates

Filing date	May 15, 2002
Grant date	Nov 30, 2010
Priority date	—
Expiry date	Jul 10, 2022

Classification

Technology area (CPC H)Electricity
CPC primaryH04N2201/04786
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

An image-recording device for generating image spots (210) by n individually controllable light sources (12), which each have a distance si, i being=1 . . . n, to an object line (14), in a projection line (16) of the object line (14) on a printing form (28), which moves with a velocity component v normally to the direction defined by the projection line (16) and tangentially to the surface of the printing form. The image-recording device is distinguished by the triggering device (216) having an assigned time-delay device (222), which delays the tripping instant of the triggering device for each light source (12) as a function of the particular distance si. The image-recording device may advantageously by used in direct imaging print units or printing-form exposure units.

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