The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Nov. 17, 2020

Filed:

Nov. 26, 2018
Applicant:

Fanuc Corporation, Yamanashi, JP;

Inventor:

Masahiro Honda, Yamanashi, JP;

Assignee:

FANUC CORPORATION, Yamanashi, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01S 3/00 (2006.01); G02B 6/42 (2006.01); H01S 3/067 (2006.01); G01J 1/42 (2006.01); H01S 3/131 (2006.01); H01S 3/136 (2006.01); H01S 3/106 (2006.01); H01S 3/0941 (2006.01); H01S 5/068 (2006.01); B23K 26/06 (2014.01); H01S 5/0683 (2006.01);
U.S. Cl.
CPC ...
H01S 3/0014 (2013.01); B23K 26/06 (2013.01); G01J 1/4257 (2013.01); G02B 6/4286 (2013.01); H01S 3/067 (2013.01); H01S 3/0941 (2013.01); H01S 3/106 (2013.01); H01S 3/131 (2013.01); H01S 3/136 (2013.01); H01S 3/1312 (2013.01); H01S 5/06825 (2013.01); H01S 5/0683 (2013.01); H01S 5/06808 (2013.01);
Abstract

A laser machining apparatus has a machining head connected to a laser oscillator having a plurality of current control units, a plurality of laser diode modules, a plurality of cavities, and a beam combiner, and performs machining by outputting light from the machining head under the control of the control unit. The laser machining apparatus includes: a current monitor unit which monitors each value of current controlled by the plurality of current control units; a power monitor unit which monitors each value of intensity of light outputted by the plurality of laser diode modules, each value of intensity of light outputted by the plurality of laser cavities, and value of intensity of light outputted by the beam combiner; and a judgment unit that judges a failure location based on values of current monitored by the current monitor unit, and values of intensity of light monitored by the power monitor.


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