Apparatus and method for generating a defined laser line on a working plane

• Main Authors: HELLSTERN, JULIAN, HEIMES, ANDREAS
• Format: Patent
• Language: Chinese; English
• Published: 01.06.2022
• Subjects: CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR; PERFORMING OPERATIONS; SOLDERING OR UNSOLDERING; TRANSPORTING; WELDING; WORKING BY LASER BEAM

An apparatus for generating a defined laser line (12) on a working plane (14) includes a laser light source (22) configured to generate a laser raw beam (24). It further includes an optical arrangement (26) that receives the laser raw beam (24) and transforms it along an optical axis (40) into an illumination beam (28). The illumination beam (28) defines a beam direction (29) that intersects the working plane (14) and has, in the region of the working plane (14), a beam profile (50) that has, perpendicular to the beam direction (29), a long axis (52) with a long axis beam width and a short axis (54) with a short axis beam width. The optical arrangement (26) is movable relative to the working plane (14) along a direction of movement (20) in order to process a workpiece (16) by means of the illumination beam (28). The beam profile (50) has a defined intensity characteristic (62) along the short-axis beam width, which intensity characteristic (62) has a leading edge (56) in the direction of movement (20), a trai