Laser processing machine

Details Laser processing machine Laser processing machine

2008-04-28

2011-11-01

Heinrich, Samuel M (Department: 3742)

Electric heating

Metal heating

By arc

C219S121770

Reexamination Certificate

active

08049134

ABSTRACT:
A laser processing machine having a laser beam irradiation unit is provided. The laser beam irradiation unit includes: a laser beam oscillation section; a beam splitter adapted to split the laser beam emitted from the laser beam oscillation section into a first laser beam and a second laser beam; a condenser lens adapted to condense the first and second laser beams; a prism adapted to lead the first and second laser beams split by the beam splitter to the condenser lens; a first angle-changing mirror disposed on a first optical path adapted to lead the first laser beam split by the beam splitter; a second angle-changing mirror disposed on a second optical path adapted to lead the second laser beam split by the beam splitter to the prism; and a half-wave plate disposed in the first or second optical path to allow one of respective directions of the first and second polarization planes to be aligned with the other.

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patent: A 10-305420 (1998-11-01), None
patent: 2005152970 (2005-06-01), None

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