Laser material processing method involves has refractive elements in variable arrangement that produce double focus from single focus; distance, intensity between foci are freely selectable

摘要

The method involves using at least two laser beam foci formed on the workpiece to be processed. Refractive elements (13,14) are used in a variable arrangement (12) to produce a double focus from a single focus, whereby the distance and intensity between the foci are freely selectable. The refractive elements in the variable arrangement are formed by two mutually displaceable cylinder lenses inserted into the laser beam. Independent claims are also included for the following: an arrangement for laser material processing.