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Patent Searching and Data


Title:
LASER-LIGHT-OUTPUT-MONITORING DEVICE, LASER DEVICE IN WHICH SAME IS USED, AND LASER MACHINING DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/203161
Kind Code:
A1
Abstract:
A laser-light-output-monitoring device 150 comprises: a diffusion plate 160 that diffuses a laser beam LBA to be monitored, which is branched light of a laser beam emitted from a laser oscillator 100, the diffusion plate 160 being deflected toward a photodiode 180; the photodiode 180, which receives the laser beam LBA to be monitored and outputs an electrical signal; and an aperture 170 provided between the diffusion plate 160 and the photodiode 180, the aperture 170 allowing the laser beam LBA to be monitored to pass therethrough. The output of the laser beam is monitored on the basis of the output signal from the photodiode 180. The aperture 170 is configured so as to prevent the incidence of stray light on the photodiode 180.

Inventors:
TSUTSUMI Futoshi
DOMOTO Shinya
ISHIKAWA Ryo
Application Number:
JP2019/016031
Publication Date:
October 24, 2019
Filing Date:
April 12, 2019
Export Citation:
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Assignee:
PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD. (1-61, Shiromi 2-chome Chuo-ku, Osaka-sh, Osaka 07, 〒5406207, JP)
International Classes:
G01J1/02; B23K26/00; B23K26/064; G01J1/06; H01S3/00
Foreign References:
JP2012096256A2012-05-24
JP2001050818A2001-02-23
JP2005201731A2005-07-28
JP2014119280A2014-06-30
JP2003126977A2003-05-08
JPH0388178U1991-09-09
JP2012026868A2012-02-09
JP2002210579A2002-07-30
Attorney, Agent or Firm:
MAEDA & PARTNERS (Shin-Daibiru Bldg. 23F, 2-1 Dojimahama 1-chome, Kita-ku, Osaka-sh, Osaka 04, 〒5300004, JP)
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