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:
Jul. 02, 1991
Filed:
Sep. 14, 1989
Applicant:
Inventors:
Hans Dammann, Tangstedt, DE;
Gert Rabe, Pinneberg, DE;
Paul J Patt, Mt. Kisco, NY (US);
Christian H Velzel, Eindhoven, NL;
Klaus B Schildbach, Waalre, NL;
Assignee:
U.S. Philips Corporation, New York, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23K / ;
U.S. Cl.
CPC ...
21912177 ; 21912163 ; 21912174 ; 21912175 ;
Abstract
A device for working a workpiece by means of laser light includes a laser, a beamsplitter for splitting the laserbeam into at least two sub-laserbeams of substantially identical intensities, and a control unit which controls the light intensity of the laser and the movement of a workpiece support and the laserbeam relative to each other. The beamsplitter includes at least one digital-phase grating which divides the laserbeam into a plurality of sub-laserbeams to produce a pattern of laser spots onto the workpiece.