| 摘要 |
A laser processing system for precision manufacturing is operated by adjusting a scan lens within the system to create a wide variety of features on a workpiece. The zoom scan lens is adjusted continuously within the system to alter radius of an annulus of the processing beam(s), resulting in change of feature size on the final workpiece. The zooming of the scan lens may be performed in combination with adjustments to the laser power and dwell time in order to maintain optimum power-per-unit area for high-quality laser processing. The invention is well-suited for drilling tapered, conical holes, such as those found in inkjet nozzles, but may be applicable for processing tapered or non-tapered features of almost any geometrical shape. |
