Laser treatment apparatus

Details Laser treatment apparatus Laser treatment apparatus

2006-08-28

2009-02-24

Nguyen, Sang (Department: 2886)

Electric heating

Metal heating

By arc

C219S121680, C250S459100, C356S237100

Reexamination Certificate

active

07495191

ABSTRACT:
A laser treatment apparatus, configured for treating a workpiece, includes: a first laser generation device, a first optical assembly, a second laser generation device, a second optical assembly, a third laser generation device, and an optical detection device. The first optical assembly is configured for directing a first laser beam generated by the first laser generation device onto a first target of the workpiece. The second optical assembly is configured for directing a second laser beam generated by the second laser generation onto a second target of the workpiece. The first laser beam has a wavelength different from that of the second laser beam. The third laser generation device is configured for generating a third laser beam to strike on the first target and/or the second target. The optical detection device is configured for detecting a reflection part of the third laser beam reflected from the workpiece.

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patent: 2002/0028521 (2002-03-01), Ogura

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