LASER BEAM MACHINE AND WINDOW CELL

摘要

PROBLEM TO BE SOLVED: To provide a laser beam machine that facilitates cleaning of a window cell arranged on the workpiece side of a condensing lens.

SOLUTION: On a Y table 9 that is freely movable in the XY directions, there is arranged a cleaning device A for cleaning the surface of a window cell 20 disposed on the workpiece side of a condensing lens 7. The cleaning device A includes a brush 55, a cylinder 51 for vertically moving the brush 55, and a motor made to revolve the brush 55 around the center axis. The brush 55 may be connected to a dust collector. The window cell is composed of germanium as the base material and coated with DLC coating on the surface oppositely facing the workpiece.

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