Variable bifocus laser processing device based on piezoelectric ceramic bending sheet

• Main Authors: ZHU XIAO, ZHU GUANGZHI, WANG HAILIN, ZHAI HAO
• Format: Patent
• Language: Chinese; English
• Published: 21.03.2023
• 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

The invention discloses a variable bifocus laser processing device based on a piezoelectric ceramic bent sheet, and belongs to the technical field of laser processing, a beam of laser is focused into two focus points distributed in the axial direction, the piezoelectric ceramic bent sheet is arranged on a light path, and the piezoelectric ceramic bent sheet is deformed by changing the voltage at the two ends of the piezoelectric ceramic bent sheet, so that the focus points of the two focus points are changed; therefore, the reflector in close contact with the reflector generates corresponding micro-deformation to change the curvature or inclination of the reflector, so that the relative position between the two focuses is adjusted to enable the reflector to meet the processing requirement, and the device is simple in structure and convenient to control. Besides the relative position between the two focus points is controllable, the power ratio of the first s polarized light to the first p polarized light in t