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:
Jul. 09, 2024

Filed:

Oct. 14, 2021
Applicant:

Trumpf Laser- Und Systemtechnik Gmbh, Ditzingen, DE;

Inventors:

Malte Kumkar, Weimar, DE;

Stefan Doerr, Bietigheim-Bissingen, DE;

Daniel Flamm, Ludwigsburg, DE;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B 5/18 (2006.01); B23K 26/06 (2014.01); G02B 5/20 (2006.01); G02B 27/09 (2006.01);
U.S. Cl.
CPC ...
G02B 5/1814 (2013.01); B23K 26/0652 (2013.01); G02B 5/20 (2013.01); G02B 27/0944 (2013.01); G02B 27/0988 (2013.01);
Abstract

A spatial frequency filter device is for use with a laser beam. The device includes: a neutral region, which is configured to transmit or reflect the laser beam; and a deflecting region, which radially adjoins the neutral region and is configured to deflect beam components of the laser beam from a beam axis of the laser beam. The deflecting region has a constant portion, in which a deflecting effect on the beam components of the laser beam for each location in the constant portion is configured to be independent of a distance of a location from the neutral region. the deflecting region has a variation portion, in which the deflecting effect on the beam components of the laser beam is configured to vary, dependent on a distance from the neutral region.


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