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:
Sep. 30, 2003
Filed:
Sep. 10, 2002
Gennadij Kusnezow, Langenhagen, DE;
LPKF Laser & Electronic AG, Garbsen, DE;
Abstract
A method for laser machining and an apparatus ( ) for performing the inventive method to equalize spot areas ( ) of a laser beam ( ), which are dissimilar in the direction of their main axes (X, Y). For this purpose, a second laser beam ( ) is decoupled from the initially common laser beam ( ) by a splitting element ( ) and through reflection from a reflector ( ) is coupled into the optical axis ( ) by a combining element ( ). Due to the inclined arrangement of the reflector ( ), so that a line (N) normal to its surface forms an angle of 0 to 90° with the main axes (X, Y), the spot area ( ) of the second laser beam ( ) is rotated relative to the first spot area ( ) such that as a result of the superimposition, the total area of the superimposed spot areas ( ) will be symmetrical about a given point. As a result, machining using the laser beams ( ) forming the spot areas ( ) is independent of the direction of advancement of the laser machining device.