Laser beam machining device

Details Laser beam machining device Laser beam machining device

2006-01-10

2006-01-10

Evans, Geoffrey S. (Department: 1725)

Electric heating

Metal heating

By arc

C219S121750, C219S121770

Reexamination Certificate

active

06984802

ABSTRACT:
A laser material processing apparatus for processing a workpiece (22) in such a way as to separate one laser light (26) into two laser beams (26a, 26b) via first polarizer (25), one laser beam being passed via the mirrors (24), the other laser beam being scanned biaxially by a first galvano scanner (29), and conduct two laser beams (26a, 26b) to a second polarizer (27) for scanning via a second galvano scanner (30), wherein an optical path is constituted such that the laser beam (26b) transmitted through the first polarizer (25) is reflected by the second polarizer (27), and the laser beam (26a) reflected by the first polarizer (25) is transmitted through the second polarizer (27).

REFERENCES:
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patent: 6521866 (2003-02-01), Arai et al.
patent: 2002/0153361 (2002-10-01), Sakamoto et al.
patent: 2004/0104208 (2004-06-01), Ijima et al.
patent: 9-29467 (1997-02-01), None
patent: 11-314188 (1999-11-01), None
patent: 2000-190087 (2000-07-01), None
patent: 2001-269790 (2001-10-01), None
patent: WO 00/53365 (2000-09-01), None

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