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. 03, 1990
Filed:
Oct. 03, 1988
Applicant:
Inventors:
Wilhelm Meyer, Lubeck, DE;
Ralf Engelhardt, Lubeck, DE;
Assignee:
Telemit Electronic GmbH, , DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23K / ;
U.S. Cl.
CPC ...
21912162 ; 21912183 ; 606-7 ;
Abstract
In a method and an apparatus for material processing with the aid of a laser the laser light is directed via a laser optical system onto the material and the light reemitted or scattered back by the material is conducted via the laser optical system onto a detector arrangement which is followed by an evaluating circuit for controlling the laser. The amplitude-versus-time profile of the light incident on the detector arrangement is evaluated and used to control the laser and/or an optical switch arranged in the output beam path of the laser.