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:
Apr. 11, 2017
Filed:
Nov. 29, 2013
Directphotonics Industries Gmbh, Berlin, DE;
Stefan Heinemann, Ann Arbor, MI (US);
Haro Fritsche, Berlin, DE;
Bastian Kruschke, Berlin, DE;
Wolfgang Gries, Berlin, DE;
Fabio Ferrario, Berlin, DE;
Ralf Koch, Lindingoe, SE;
DIRECTPHOTONICS INDUSTRIES GMBH, Berlin, DE;
Abstract
The invention discloses a device for laser material machining, with at least two laser beam sources (-) which emit laser beams (-) of different wavelengths, with associated beam imaging means (-), to configure appropriately the beam paths of each associated laser beam (-), a beam superposition device (), to overlay the laser beams (-) on each other, and imaging optics (), to image the overlaid laser beams (-) onto a workpiece () so that respective focal points are associated with the laser beams (-) in the focus of the imaging optics () on the workpiece (), wherein the beam imaging means image the laser beams (-) onto the respective focal points in a predefined arrangement which can be varied by means of the beam imaging means (-). According to the invention, electronic control devices (-) are provided which are able to vary each of the outputs of the laser beams (-) with a high frequency to vary the intensities of the respective focal points at the focus of the imaging optics () in a predefined manner. In this way, a high frequency control of the parameters of laser material machining which can be combined with conventional modulation techniques is implemented.