The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 02, 2008
Filed:
Oct. 21, 2005
Andreas Detmers, Heddesheim, DE;
Christian Meier, Schriesheim, DE;
Ingo Ringle, Eppelheim, DE;
Thomas Rupp, Heidelberg, DE;
Wolfgang Theiss, Heidelberg, DE;
Andreas Detmers, Heddesheim, DE;
Christian Meier, Schriesheim, DE;
Ingo Ringle, Eppelheim, DE;
Thomas Rupp, Heidelberg, DE;
Wolfgang Theiss, Heidelberg, DE;
Heidelberger Druckmaschinen AG, Heidelberg, DE;
Abstract
An imaging apparatus for imaging on a recording medium is improved to permit the imaging power to be balanced between various groups of individual radiation sources with a low outlay and high accuracy. Two or more imaging heads that respectively include a multiplicity of individual radiation sources that can be electrically driven individually with light beams directed onto a radiation-sensitive layer of the recording medium. A drive moves the recording medium and the radiation sources relative to one another. A control device controls the power of the light beams of the radiation sources separately for each imaging head. A least one light guide is provided that guides a portion of the light beams emanating from the radiation sources to the receiver surface of a photoelectric sensor, which sensor is connected to the control device.