LASER SHAPING WITH AN AREA PATTERNING MASK

摘要

LASER SHAPING WITH AN AREA PATTERNING MASK Laser sculpturing by ablation is controlled on an area basis by a mask pattern which determines light transmission in accordance with the desired degree of ablation as a function of position. In one embodiment, a set of binarally weighted masks is employed to produce an arbitrary change in the configuration of the surface of the workpiece being sculptured.