Apparatus for laser processing and monitoring

Details Apparatus for laser processing and monitoring Apparatus for laser processing and monitoring

1995-04-26

1997-09-23

Evans, Geoffrey S.

Electric heating

Metal heating

By arc

21912183, B23K 2606

Patent

active

056700687

ABSTRACT:
A laser processing apparatus includes a laser beam source, a focusing optical system for focusing a laser beam from the source as a processing laser beam to a surface of an article, an illuminating optical system using a laser beam of the same frequency as that of the processing laser beam as an illumination laser beam for illuminating the surface of the article, and a photographing device for detecting the illumination laser beam reflected from the article through the focusing optical system to thereby monitor a position to be processed. Since the laser beam of the illuminating optical system is of the same frequency as that of the processing beam chromatic aberration is prevented. This allows increased monitoring accuracy so that an article such as copper foil can be processed by a laser beam with an accuracy of 10 microns to monitor and correct a processing position.

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patent: 5208437 (1993-05-01), Miyauchi et al.
patent: 5227607 (1993-07-01), Ishiyama

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