公开(公告)号：US09590379B2

公开(公告)日：2017-03-07

申请号：US15023687

申请日：2015-02-02

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Hiroyuki Hayashikawa ,  Hitoshi Hongu

IPC: H01S3/036 ,  H01S3/104 ,  H01S3/0971

CPC classification number: H01S3/036 ,  H01S3/0971 ,  H01S3/104

Abstract: A gas laser oscillation device includes a discharge part, a blower part, and a laser gas path. The discharge part excites a laser gas medium and the blower part blows the laser gas. The laser gas path forms the circulation path of the laser gas between the discharge part and the blower part. The blower part includes an impeller section, a drive section, and an intermediate chamber disposed between the impeller section and the drive section. In the impeller section, a rotating blade to be rotated by a drive section via a rotating shaft is disposed. In the intermediate chamber, a main space and a gas damper space are partially partitioned by a gas shielding member.

Abstract translation: 气体激光振荡装置包括排出部，鼓风部和激光气路。 放电部件激发激光气体介质，鼓风机部件吹动激光气体。 激光气体路径形成排出部分和鼓风机部分之间的激光气体的循环路径。 鼓风机部分包括叶轮部分，驱动部分和设置在叶轮部分和驱动部分之间的中间室。 在叶轮部中设置有通过旋转轴由驱动部旋转的旋转叶片。 在中间室中，主空间和气体阻尼空间被气体屏蔽构件部分地分隔开。

公开(公告)号：US11060905B2

公开(公告)日：2021-07-13

申请号：US16417760

申请日：2019-05-21

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Jingbo Wang ,  Doukei Nagayasu ,  Yoshiaki Takenaka ,  Hitoshi Nishimura ,  Makoto Ryudo ,  Kiyotaka Eizumi ,  Hideaki Yamaguchi ,  Ryo Ishikawa ,  Masatoshi Nishio ,  Takasi Kakutani ,  Yasushi Mukai ,  Mitsuru Mukai ,  Hiroyuki Hayashikawa

IPC: G01J1/42 ,  B23K26/00 ,  G01J1/04 ,  B23K26/03 ,  B23K26/70 ,  H01S3/00 ,  B23K26/38 ,  B23K26/21

Abstract: A laser device includes: a laser resonator for emitting a laser beam; a condenser lens for collecting the laser beam emitted from the laser resonator; an optical fiber for transmitting the laser beam collected by the condenser lens; at least one light sensor opposing a light receiving surface of the condenser lens and outside an optical path of the laser beam, the at least one light sensor detecting an amount of return light from the condenser lens; and a controller for determining a presence of an abnormality when a value of the amount detected by the at least one light sensor is greater than a predetermined maximum threshold.