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公开(公告)号：US11245241B2
公开(公告)日：2022-02-08
申请号：US16594852
申请日：2019-10-07
Applicant: FANUC CORPORATION
Inventor： Hiroshi Takigawa , Tetsuhisa Takazane
Abstract: An optical fiber for a fiber laser includes a core to which a rare-earth element is added, a first cladding formed around the core; and a second cladding formed around the first cladding, and excitation light is guided from at least one end of the first cladding to excite the rare-earth element to output a laser oscillation light. An addition concentration of the rare-earth element to the core is different in a longitudinal direction of the optical fiber for a fiber laser, and a core diameter and a numerical aperture of the optical fiber for a fiber laser are constant in the longitudinal direction of the optical fiber for a fiber laser.
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公开(公告)号：US10522964B2
公开(公告)日：2019-12-31
申请号：US16291767
申请日：2019-03-04
Applicant: FANUC CORPORATION
Inventor： Hiroshi Takigawa , Tetsuhisa Takazane , Hisatada Machida
IPC: H01S3/30 , H01S3/067 , H01S3/04 , H01S3/0941
Abstract: A fiber laser apparatus includes a fiber laser oscillator that performs laser oscillation with laser light from at least one laser diode module, and includes a loop-shaped optical fiber formed with: a combiner in which at least two input side optical fibers are connected to one output side optical fiber that includes one output end; and an optical fiber for connection of both ends in which the output end of the output side optical fiber is connected to the input end of any one of the input side optical fibers, the optical fiber for connection of both ends including a light leakage means formed such that at least one of values among a numerical aperture, a core diameter and a mode field diameter of the optical fiber for connection of both ends is gradually reduced from a side which is connected to the output end toward a side which is connected to the input end.
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公开(公告)号：US10516249B2
公开(公告)日：2019-12-24
申请号：US15450052
申请日：2017-03-06
Applicant: FANUC CORPORATION
Inventor： Tetsuhisa Takazane
Abstract: To provide a laser oscillator, in which an LD module is fixed to a cooling plate through insulated fixation that is superior in durability, cost, and workability in an insulated fixation operation. A laser oscillator includes an LD module. The LD module has one or a plurality of LD light source(s), and is placed on a thermally conductive insulating member placed on a cooling plate. The LD module of the laser oscillator is fixed to the cooling plate, via an elastic insulating member fixed to the cooling plate.
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4.发明申请LASER OSCILLATOR COMPRISING HEAT EXCHANGER HAVING FUNCTION OF COLLECTING FOREIGN MATTERS 有权包含具有收集外部功能功能的热交换器的激光振荡器公开(公告)号：US20170077666A1
公开(公告)日：2017-03-16
申请号：US15264985
申请日：2016-09-14
Applicant: FANUC CORPORATION
Inventor： Risa Ito , Tetsuhisa Takazane , Yuji Nishikawa
CPC classification number: H01S3/041 , H01S3/036 , H01S3/04 , H01S3/0405 , H01S3/097 , H01S3/0971 , H01S3/104 , H01S3/22 , H01S3/2232
Abstract: A laser oscillator comprises a heat exchanger which cools a gas medium. The heat exchanger includes a cooling part which performs heat exchange between the gas medium and a cooling medium, a tubular member fixed to a frame body, and a foreign matter collection container. The tubular member is disposed so that the gas medium which flows out of the cooling part moves along an outer surface of the tubular member and then changes a proceeding direction to flow into an inlet portion. The foreign matter collection container collects foreign matters which are separated from a flow of the gas medium.
Abstract translation: 激光振荡器包括冷却气体介质的热交换器。 热交换器包括在气体介质和冷却介质之间进行热交换的冷却部件，固定到框体的管状部件和异物收集容器。 管状构件被设置成使得从冷却部分流出的气体介质沿管状构件的外表面移动，然后改变前进方向以流入入口部分。 异物收集容器收集与气体介质的流动分离的异物。
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公开(公告)号：US09583909B2
公开(公告)日：2017-02-28
申请号：US15053152
申请日：2016-02-25
Applicant: FANUC CORPORATION
Inventor： Tetsuhisa Takazane
CPC classification number: H01S3/0407 , H01S3/0014 , H01S3/03 , H01S3/036 , H01S3/0401 , H01S3/041 , H01S3/104 , H01S3/2232
Abstract: A gas laser oscillator according to the present invention comprises a resonator unit, a heat exchanger through which a fluid exchanging heat with a laser gas flows, a chiller for cooling the fluid in the heat exchanger and supplying the fluid to the heat exchanger, and a heat transfer device for transferring heat of the fluid to the resonator unit. The gas laser oscillator further comprises a first flow path for supplying the fluid used for cooling the laser gas in the heat exchanger to the heat transfer device, a second flow path for supplying the fluid cooled by the chiller to the heat transfer device prior to supplying the fluid to the heat exchanger, and a switching valve for switching either one of a first flow path and a second flow path.
Abstract translation: 根据本发明的气体激光振荡器包括谐振器单元，与激光气体交换热量的热交换器，用于冷却热交换器中的流体并将流体供应到热交换器的冷却器，以及 用于将流体的热量传递到谐振器单元的传热装置。 气体激光振荡器还包括用于将用于冷却热交换器中的激光气体的流体供应到传热装置的第一流动路径，用于在供应之前将由冷却器冷却的流体供应到传热装置的第二流动路径 到热交换器的流体，以及用于切换第一流路和第二流路中的任一个的切换阀。
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Patent Agency Ranking
公开(公告)号：US20160056602A1
公开(公告)日：2016-02-25
申请号：US14833479
申请日：2015-08-24
Applicant: FANUC CORPORATION
Inventor： Tetsuhisa Takazane
Abstract: A laser oscillator which can keep distributions of pressure of a laser medium inside of a plurality of discharge tubes constant while making the laser medium circulate without stagnating. The laser oscillator is comprised of a first discharge tube, second discharge tube, first light guide, laser medium flow path, and blower. A flow resistance of a laser medium flow path between the blower and the first discharge tube and a flow resistance of the laser medium flow path between the blower and second discharge tube are the same as each other. A flow resistance of the laser medium flow path between the blower and a first end of the first light guide and a flow resistance of the laser medium flow path between the blower and a second end of the first light guide differ from each other.
Abstract translation: 激光振荡器可以使激光介质在多个放电管内部的压力分布恒定，同时使激光介质循环而不停滞。 激光振荡器包括第一放电管，第二放电管，第一光导，激光介质流路和鼓风机。 鼓风机和第一放电管之间的激光介质流路的流动阻力和鼓风机与第二放电管之间的激光介质流路的流动阻力彼此相同。 鼓风机与第一导光体的第一端之间的激光介质流路的流动阻力和鼓风机与第一导光体的第二端之间的激光介质流路的流动阻力彼此不同。
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公开(公告)号：US10990089B2
公开(公告)日：2021-04-27
申请号：US16257795
申请日：2019-01-25
Applicant: Fanuc Corporation
Inventor： Hiroshi Takigawa , Tetsuhisa Takazane
IPC: G05B23/02 , G06N20/00 , H01S5/0683 , H01S3/00
Abstract: A machine learning device observes a state variable of the inside and the outside of a laser device including time-series data of light output, which is detected by an output light sensor, and a light output command through a control unit of the laser device, and acquires a determination result on correctness with respect to a quantitative failure occurrence mechanism outputted for each failure in the laser device. The machine learning device learns the quantitative failure occurrence mechanism corresponding to each failure while associating the quantitative failure occurrence mechanism with the state variable and the determination result on correctness with respect to the quantitative failure occurrence mechanism, and decides a quantitative failure occurrence mechanism which is to be outputted when an occurrence of each failure is detected.
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公开(公告)号：US10003170B2
公开(公告)日：2018-06-19
申请号：US15615060
申请日：2017-06-06
Applicant: FANUC CORPORATION
Inventor： Tetsuhisa Takazane
Abstract: A soldering system that determines soldering quality of elements relative to a housing at the moment of soldering semiconductor laser elements. A soldering device that performs soldering of a semiconductor laser element to a semiconductor laser module, a robot that conveys the module, a camera, and a control device that controls the robot and camera based on imaging output of the camera. The robot conveys the module and changes the position and posture of the camera. The camera images the module. The control device calculates the position of the semiconductor laser element based on the imaging output, calculates parallelism between the housing of the module and the semiconductor laser element based on the change in light intensity related to the imaging output when changing the relative position between the camera and the subject, and determines the quality of soldering of the semiconductor laser element based on the position and parallelism.
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公开(公告)号：US20170033526A1
公开(公告)日：2017-02-02
申请号：US15216818
申请日：2016-07-22
Applicant: FANUC CORPORATION
Inventor： Jun Satou , Tetsuhisa Takazane
CPC classification number: H01S3/076 , H01S3/08059 , H01S3/0815 , H01S3/0816 , H01S3/139 , H01S3/2232
Abstract: A laser oscillator configured to limit a mode hopping over a long duration. A laser oscillator has an optical resonator including an output coupler and a rear mirror positioned on an optical axis, at least one folding mirror positioned on the optical axis and between the output coupler and the rear mirror, and a discharge tube positioned between the output coupler or the rear mirror and the folding mirror. At least one folding mirror has a toric surface shape, a saddle surface shape or a cylindrical shape, and is configured to rotate about a straight line as a rotation axis, which extends through one point on a surface of the folding mirror and is perpendicular to the surface of the folding mirror.
Abstract translation: 配置为在长时间内限制模式跳变的激光振荡器。 激光振荡器具有包括位于光轴上的输出耦合器和后反射镜的光学谐振器，位于光轴上且位于输出耦合器和后反射镜之间的至少一个折叠反射镜，以及位于输出耦合器 或后视镜和折叠镜。 至少一个折叠镜具有复曲面形状，鞍形表面形状或圆柱形形状，并且被构造成围绕作为旋转轴的直线旋转，该直线延伸穿过折叠反射镜的表面上的一个点并垂直于 折叠镜的表面。
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公开(公告)号：US09350134B2
公开(公告)日：2016-05-24
申请号：US14833479
申请日：2015-08-24
Applicant: FANUC CORPORATION
Inventor： Tetsuhisa Takazane
Abstract: A laser oscillator which can keep distributions of pressure of a laser medium inside of a plurality of discharge tubes constant while making the laser medium circulate without stagnating. The laser oscillator is comprised of a first discharge tube, second discharge tube, first light guide, laser medium flow path, and blower. A flow resistance of a laser medium flow path between the blower and the first discharge tube and a flow resistance of the laser medium flow path between the blower and second discharge tube are the same as each other. A flow resistance of the laser medium flow path between the blower and a first end of the first light guide and a flow resistance of the laser medium flow path between the blower and a second end of the first light guide differ from each other.
Abstract translation: 激光振荡器可以使激光介质在多个放电管内部的压力分布恒定，同时使激光介质循环而不停滞。 激光振荡器包括第一放电管，第二放电管，第一光导，激光介质流路和鼓风机。 鼓风机和第一放电管之间的激光介质流路的流动阻力和鼓风机与第二放电管之间的激光介质流路的流动阻力彼此相同。 鼓风机与第一导光体的第一端之间的激光介质流路的流动阻力和鼓风机与第一导光体的第二端之间的激光介质流路的流动阻力彼此不同。
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