Genaue Driftmessung mit Reflektoren

Details

Veröffentlichungs-Nr.

EP4803242

Anmeldetag

5. März 2025

Veröffentlichung

9. September 2026

Rechtsraum

EP

IPC

B23K26/082

Abstract

The invention refers to a laser processing apparatus (10) comprising: a laser processing module (20) for laser-processing a workpiece on a work field (22); a measurement module (30) for performing distance measurements using a measurement beam (MB), wherein the measurement module (30) is optically coupled with the laser processing module (20) to receive and output the measurement beam (MB) from and to the laser processing module (20); at least one scanning unit (24) for scanning the measurement beam (MB) over the work field (22); one or more calibration reflectors (12a, 12b) having a constant spatial relation with respect to the work field (22) and/or with respect to the at least one scanning unit (24); and a processing unit (40) configured for determining drift shifts of the laser processing apparatus (10) based on measured variations of a path length of the measurement beam (MB) to and from the one or more calibration reflectors (12a, 12b) and on corresponding angular deflection setting (α) of the at least one scanning unit (24). The invention further refers to a method of determining a drift shift in such a laser processing apparatus (10) and to a related method of compensating drift shifts in a laser processing apparatus (10).

Anmelder

Firma

Raylase GmbH

Land

🇩🇪 Deutschland

Fachgebiete