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.

Date of Patent:
Dec. 06, 2016

Filed:

Oct. 11, 2013
Applicant:

Trumpf Werkzeugmaschinen Gmbh + Co. KG, Ditzingen, DE;

Inventor:

Juergen-Michael Weick, Asperg, DE;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23K 26/00 (2014.01); B23K 26/02 (2014.01); B23K 26/08 (2014.01); B23K 26/03 (2006.01); B23K 26/04 (2014.01); G01J 1/42 (2006.01); G01J 1/04 (2006.01);
U.S. Cl.
CPC ...
B23K 26/0869 (2013.01); B23K 26/032 (2013.01); B23K 26/048 (2013.01); B23K 26/705 (2015.10); B23K 26/707 (2015.10); G01J 1/0414 (2013.01); G01J 1/4257 (2013.01);
Abstract

An apparatus for focusing a laser beam on a workpiece includes at least one transmissive optical element which is arranged at a tilting angle with respect to a plane perpendicular to a beam axis of the laser beam, the transmissive optical element comprising a first side and a second side through which the laser beam passes, a spatially-resolving detector configured to detect laser radiation reflected from the transmissive optical element, and an image evaluation device coupled to the detector, the image evaluation device configured to distinguish laser radiation reflected from the first side of the optical element from laser radiation reflected from the second side of the optical element.


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