Title:
LASER MACHINING DEVICE AND LASER MACHINING METHOD USING SAME
Document Type and Number:
WIPO Patent Application WO/2020/241138
Kind Code:
A1
Abstract:
This laser machining device comprises a laser oscillator, an optical fiber (90), a beam control mechanism (20), and a laser beam projection head. The laser oscillator includes a first and a second laser oscillation unit which respectively generate a first and a second laser beam (LB1), (LB2). The beam control mechanism (20) includes a light path changing/retaining mechanism (40) that is disposed between: a second focusing lens (32) that focuses the second laser beam (LB2); and a dichroic mirror (33) that combines the first and the second laser beams (LB1), (LB2) and causes the same to be incident at the optical fiber (90). The beam control mechanism (20) changes the position at which the second laser beam (LB2) is incident at the optical fiber (90).
Inventors:
WANG JINGBO
NISHIO MASATOSHI
SHIBATA KENZO
NISHIHARA MANABU
NISHIO MASATOSHI
SHIBATA KENZO
NISHIHARA MANABU
Application Number:
PCT/JP2020/017622
Publication Date:
December 03, 2020
Filing Date:
April 24, 2020
Export Citation:
Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
B23K26/073; B23K26/00; B23K26/064; B23K26/21; H01S3/00; H01S3/10
Domestic Patent References:
| WO2019185527A2 | 2019-10-03 |
Foreign References:
| JPS58159514A | 1983-09-21 | |||
| JP2005313195A | 2005-11-10 | |||
| JPS6116938Y2 | 1986-05-24 | |||
| US8781269B2 | 2014-07-15 | |||
| JP2011253866A | 2011-12-15 | |||
| JPS5942502A | 1984-03-09 | |||
| JP2002224867A | 2002-08-13 | |||
| US8781269B2 | 2014-07-15 |
Other References:
See also references of EP 3978183A4
Attorney, Agent or Firm:
KAMATA Kenji et al. (JP)
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