METHOD FOR LASER-PROCESSING A SURFACE BY REPOSITIONING THE SURFACE WITH RESPECT TO THE LASER SCANNER OR BY CONTROLLING A ENCODING INPUT FOR ROTATING A DEFLECTION OF THE LASER BEAM

摘要

The invention relates to a method for laser-processing a surface. A laser beam is guided over the surface by means of a laser scanner (3), and the surface is moved and/or rotated relative to the laser scanner (3) in a plurality of sequential repositioning processes. During each repositioning process, the laser beam is deflected by the laser scanner (3) along a directional path between a starting direction and an end direction over the surface. The surface is moved during each repositioning process at least in a positive acceleration phase, in which a speed of the surface relative to the laser scanner (3) is increased, and a negative acceleration phase, which is carried out after the positive acceleration phase and in which the speed of the surface relative to the laser scanner is reduced to zero. When the speed reaches zero during the negative acceleration phase before the laser beam has reached the end direction, the speed increase during the positive acceleration phase of the subsequent repositioning process begins at the point in time when the laser beam reaches the end direction, and when the speed reaches zero during the negative acceleration phase after the laser beam has reached the end position, the speed increase during the positive acceleration phase of the subsequent repositioning process begins immediately after the speed has reached zero.