Title:
LASER MACHINING HEAD AND LASER MACHINING APPARATUS
Document Type and Number:
WIPO Patent Application WO/2024/013986
Kind Code:
A1
Abstract:
A laser machining head (1A) comprises: a first lens group (11) which laser light diffused from a light-emitting unit (3) enters, and which focuses the laser light; a second lens group (12) that propagates the laser light which has passed through the first lens group (11); a third lens group (13) that constitutes, together with the second lens group (12), a lens group that propagates the laser light, which has passed through the second lens group (12), and forms, in a transfer position, an image of the light-emitting unit (3); a fourth lens group (14) which the laser light, which has passed through the third lens group (13), enters, and which focuses the laser light; a luminous flux conversion optical element (15) that is disposed on an optical axis between the first lens group (11) and the second lens group (12), and that converts a beam mode of the laser light; a first movement mechanism (17) that causes the first lens group (11) to move in an optical axis direction; and a second movement mechanism (18) that causes the third lens group (13) to move in the optical axis direction.
Inventors:
INOUE YOKO (JP)
SEGUCHI MASAKI (JP)
KYOTO TOMOHIRO (JP)
KATO YUKIATSU (JP)
NISHIO AKINORI (JP)
KUMAOKA MOTOTOSHI (JP)
SEGUCHI MASAKI (JP)
KYOTO TOMOHIRO (JP)
KATO YUKIATSU (JP)
NISHIO AKINORI (JP)
KUMAOKA MOTOTOSHI (JP)
Application Number:
PCT/JP2022/027883
Publication Date:
January 18, 2024
Filing Date:
July 15, 2022
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
B23K26/073; B23K26/064
Domestic Patent References:
| WO2017203613A1 | 2017-11-30 |
Foreign References:
| JP2020531392A | 2020-11-05 | |||
| JP2005028428A | 2005-02-03 | |||
| US5256853A | 1993-10-26 | |||
| JP6833117B1 | 2021-02-24 |
Attorney, Agent or Firm:
TAKAMURA, Jun (JP)
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