Dynamisches Zoomen und Fokussieren in einer Laserbearbeitungsvorrichtung

Details

Veröffentlichungs-Nr.

EP4744811

Anmeldetag

13. Dezember 2024

Veröffentlichung

20. Mai 2026

Rechtsraum

EP

IPC

(WIGGERMANN UDO et al.)

Abstract

The invention refers to a laser processing apparatus (10) comprising an optical system with a beam width regulation optical group (20) for adjusting a beam width of a laser beam (B) and a focusing optical group (30) with adjustable focal length, wherein the focusing optical group (30) is arranged along a beam path of the laser beam (B) between the beam width regulation optical group (20) and the laser output (14); wherein the optical system is configured for adjusting a focal position of the laser beam and a spot size corresponding to a beam width of the laser beam at said focal position (F). The beam width regulation optical group (20) is configured for causing a variation of an absolute value of a beam propagation angle of the laser beam (B) not more than 10°; and/or such that a ratio of a distance from the beam width regulation optical system to focusing optical system along an optical path of the laser beam over a Rayleigh length of the laser beam measured downstream from the beam width regulation optical group is not more than 60. The invention further refers to a related method of operating a laser processing apparatus (10) for laser-processing a workpiece (P).

Anmelder

Firma

Raylase GmbH

Land

🇩🇪 Deutschland