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. 31, 2019
Filed:
Dec. 16, 2014
Philips Photonics Gmbh, Ulm, DE;
Ralf Gordon Conrads, Kempen, DE;
Stephan Gronenborn, Aachen, DE;
Gero Heusler, Aachen, DE;
Holger Moench, Vaals, NL;
PHILIPS PHOTONICS GMBH, Ulm, DE;
Abstract
The invention describes a laser printing system () for illuminating an object moving relative to a laser module of the laser printing system () in a working plane () and a corresponding method of laser printing. The laser module comprises at least two laser arrays () of semiconductor lasers () and at least one optical element (). The optical element () is adapted to image laser light emitted by the laser arrays (), such that laser light of semiconductor lasers () of one laser array () is imaged to one pixel in a working plane () of the laser printing system () and an area element of the pixel is illuminated by means of at least two semiconductor lasers (). The optical element does not project or focus laser light of each single semiconductor laser () to the working plane () but images the whole laser arrays to the working plane. The overlap of the laser light emitted by the semiconductor lasers () may improve the homogeneity of illumination or energy input and the reliability regarding malfunctions of single semiconductor lasers ().