Laser machining device

Details Laser machining device Laser machining device

2005-04-05

2005-04-05

Elve, M. Alexandra (Department: 1725)

Electric heating

Metal heating

By arc

C219S121740, C219S121750

Reexamination Certificate

active

06875951

ABSTRACT:
A laser machining device according to the invention is provided with a laser oscillator for generating a laser beam, a main deflecting galvannometer mirror, an Fθ lens, and a sub-deflecting means arranged in an optical path between the laser oscillator and the main deflecting galvanometer mirror. A means for splitting a laser beam is provided, and the sub-deflecting means is inserted into the optical path of one of the split laser beams. At the same time, both the split laser beams are incident from the same main deflecting galvannometer mirror to the Fθ lens, and a numerical aperture in the optical system constituted by the main deflecting galvannometer mirror, the Fθ lens, and an object is set to be not more than 0.08.

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