公开(公告)号：EP3817162A1

公开(公告)日：2021-05-05

申请号：EP19826579.5

申请日：2019-06-21

申请人： Panasonic Intellectual Property Management Co., Ltd.

发明人： RYUDO Makoto ,  NISHIO Masatoshi ,  WANG Jingbo

IPC分类号： H01S5/068 ,  H01S3/00 ,  H01S3/02 ,  H01S5/022

摘要： A laser device 100 includes a laser oscillator 10, a dehumidifier 11, and a controller 9 controlling an operation of the dehumidifier 11. The controller 9 controls the dehumidifier 11 such that the dew point W inside the laser oscillator 10 is lower than the first dew point W1H when a monolayer or less of water molecules is adsorbed, or such that the dew point W is equal to or higher than the second dew point W2L when more than a monolayer of water molecules is adsorbed inside the laser oscillator 10, and is lower than the third dew point W2H at which the dew condensation starts to occur inside the laser oscillator 10.

公开(公告)号：EP3549711A1

公开(公告)日：2019-10-09

申请号：EP17876130.0

申请日：2017-11-27

申请人： Panasonic Intellectual Property Management Co., Ltd.

发明人： ISHIKAWA Ryo ,  RYUDO Makoto ,  NAGAYASU Doukei ,  NISHIMURA Hitoshi ,  WANG Jingbo ,  NISHIO Masatoshi ,  YAMAGUCHI Hideaki ,  TAKENAKA Yoshiaki ,  EIZUMI Kiyotaka

IPC分类号： B23K26/035 ,  B23K26/00 ,  B23K26/067 ,  G02B6/32 ,  G02B6/42 ,  H01S3/101

摘要： A condenser lens for collecting a laser beam (300) is disposed between the laser oscillator and the incident end surface of the optical fiber. The laser beam (300) is divided into a plurality of beams (303, 304). The power of the laser beam (304) is measured and maximized by adjusting the position of the condenser lens. The FFP of the laser beam (303) is measured and minimized by adjusting the position of the condenser lens. These adjusted positions are stored as the first and second lens positions. The FFP of the laser beam (303) is measured while the condenser lens is being moved between these positions so as to make the BPP not more than a predetermined value.

公开(公告)号：EP3435127A1

公开(公告)日：2019-01-30

申请号：EP17769807.3

申请日：2017-02-27

申请人： Panasonic Intellectual Property Management Co., Ltd.

发明人： TAKENAKA Yoshiaki ,  NISHIMURA Hitoshi ,  RYUDO Makoto ,  WANG Jingbo ,  NISHIO Masatoshi ,  EIZUMI Kiyotaka ,  YAMAGUCHI Hideaki ,  ISHIKAWA Ryo ,  NAGAYASU Doukei

IPC分类号： G02B6/32 ,  B23K26/064

摘要： A fiber spatial coupling device includes a detachable process fiber, an optical system, and a main body. The process fiber guides laser light. The optical system collects the laser light into the process fiber. The main body holds the optical system, and has a supply port for supplying gas to a space between the process fiber and the optical system.