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公开(公告)号：US09887513B2
公开(公告)日：2018-02-06
申请号：US15367778
申请日：2016-12-02
Applicant: FANUC CORPORATION
Inventor： Hiroshi Takigawa , Akihiko Nishio
CPC classification number: H01S5/0014 , H01S3/0014 , H01S3/027 , H01S3/0407 , H01S3/042 , H01S5/02423 , H01S5/02453
Abstract: A laser apparatus that can reliably prevent the formation of condensation is disclosed. In the laser apparatus, the temperature of cooling water supplied into the interior of the laser apparatus is controlled within a first predetermined temperature range during laser oscillation, while at the same time, continuously performing dehumidification so that the relation (dew point of air inside laser apparatus)+(first predetermined temperature difference)≦(cooling water temperature) is maintained. The dew point of the air inside the laser apparatus can be obtained by a computing unit from the humidity and temperature of the air.
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公开(公告)号：US20170270434A1
公开(公告)日：2017-09-21
申请号：US15460850
申请日：2017-03-16
Applicant: FANUC CORPORATION
Inventor： Hiroshi Takigawa , Akinori Ohyama
Abstract: A machine learning apparatus that learns laser machining condition data of a laser machining system includes: a state amount observation unit that observes a state amount of the laser machining system; an operation result acquisition unit that acquires a machined result of the laser machining system; a learning unit that receives an output from the state amount observation unit and an output from the operation result acquisition unit, and learns the laser machining condition data in association with the state amount and the machined result of the laser machining system; and a decision-making unit that outputs laser machining condition data by referring to the laser machining condition data learned by the learning unit.
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公开(公告)号：US20170163005A1
公开(公告)日：2017-06-08
申请号：US15367778
申请日：2016-12-02
Applicant: FANUC CORPORATION
Inventor： Hiroshi Takigawa , Akihiko Nishio
CPC classification number: H01S5/0014 , H01S3/0014 , H01S3/027 , H01S3/0407 , H01S3/042 , H01S5/02423 , H01S5/02453
Abstract: A laser apparatus that can reliably prevent the formation of condensation is disclosed. In the laser apparatus, the temperature of cooling water supplied into the interior of the laser apparatus is controlled within a first predetermined temperature range during laser oscillation, while at the same time, continuously performing dehumidification so that the relation (dew point of air inside laser apparatus)+(first predetermined temperature difference)≦(cooling water temperature) is maintained. The dew point of the air inside the laser apparatus can be obtained by a computing unit from the humidity and temperature of the air.
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24.发明申请LONG-LIFE, HIGH-EFFICIENCY LASER APPARATUS HAVING PLURALITY OF LASER DIODE MODULES 有权长寿命激光二极管模块的高效激光装置公开(公告)号：US20170070031A1
公开(公告)日：2017-03-09
申请号：US15258074
申请日：2016-09-07
Applicant: FANUC CORPORATION
Inventor： Hiroshi Takigawa , Hisatada Machida
IPC: H01S5/0683 , H01S5/042 , H01S5/40
CPC classification number: H01S5/0683 , H01S3/0675 , H01S3/094011 , H01S3/094076 , H01S3/09415 , H01S5/0021 , H01S5/042 , H01S5/0617 , H01S5/06216 , H01S5/06835 , H01S5/4012 , H01S5/4025
Abstract: A laser apparatus includes laser diode module groups (LDMGs) and power supply units and provides a laser light source by collecting laser beam from the LDMGs, and comprises: a driving current supply circuit network for injecting the driving currents into the respective LDMGs, independently; a control unit which controls the driving currents independently; a first recording unit in which are recorded data representing a relationship between the driving current and optical output power, and data representing a relationship between the driving current and drive voltage; and a first calculating unit which calculates the driving currents to be allocated to the LDMGs so as to achieve maximum electrical to optical conversion efficiency, wherein the control unit allocates the driving currents to the LDMGs in accordance with the results calculated by the first calculating unit so that the LDMGs as a whole can achieve maximum electrical to optical conversion efficiency under conditions.
Abstract translation: 激光装置包括激光二极管模块组（LDMG）和电源单元，并通过收集来自LDMG的激光束提供激光源，并且包括：驱动电流供应电路网络，用于独立地将驱动电流注入相应的LDMG; 独立地控制驱动电流的控制单元; 第一记录单元，其中表示驱动电流和光输出功率之间的关系的记录数据，以及表示驱动电流和驱动电压之间的关系的数据; 以及第一计算单元，其计算要分配给LDMG的驱动电流以实现最大的电转换效率，其中控制单元根据由第一计算单元计算的结果将驱动电流分配给LDMG， LDMG作为一个整体可以在条件下实现最大的电光转换效率。
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25.发明申请LASER APPARATUS IN WHICH LASER OSCILLATION PART, AIR COOLING MACHINE AND DEHUMIDIFIER ARE COOLED BY COMMON COOLING WATER 有权激光振荡部件，空气冷却机和除湿器的激光装置由通用冷却水冷却公开(公告)号：US20160365701A1
公开(公告)日：2016-12-15
申请号：US15177801
申请日：2016-06-09
Applicant: FANUC CORPORATION
Inventor： Hiroshi Takigawa
CPC classification number: H01S5/02423 , H01S5/022 , H01S5/0222 , H01S5/02407 , H01S5/02415 , H01S5/02469
Abstract: The laser apparatus includes a laser oscillation part including a water-cooled plate, an air cooling machine including a radiator, a dehumidifier including a water-cooled plate, and a cooling water supply device including a cooling water pipe through which a cooling water is supplied. The air cooling machine and the dehumidifier are arranged in a housing. The cooling water pipe is branched so that the water-cooled plate in the laser oscillation part, the radiator, and the water-cooled plate in the dehumidifier are connected in parallel. The cooling water supply device supplies a common cooling water of the same temperature to the water-cooled plate in the laser oscillation part, the radiator, and the water-cooled plate in the dehumidifier.
Abstract translation: 激光装置包括：激光振荡部，其包括水冷板，包括散热器的空气冷却机，包括水冷板的除湿器和包括冷却水管的冷却水供应装置，冷却水通过冷却水管供给冷却水 。 空气冷却机和除湿器布置在壳体中。 冷却水管被分支，使得激光振荡部分中的水冷板，散热器和除湿器中的水冷板并联连接。 冷却水供给装置将相同温度的普通冷却水供给到除湿机中的激光振荡部，散热器和水冷板中的水冷板。
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Patent Agency Ranking
26.发明申请公开(公告)号：US20160352062A1
公开(公告)日：2016-12-01
申请号：US15165193
申请日：2016-05-26
Applicant: FANUC CORPORATION
Inventor： Hiroshi Takigawa , Hiroyuki Yoshida , Akihiko Nishio
CPC classification number: H01S3/0014 , B23K26/00 , B23K26/21 , H01S3/0407
Abstract: The laser device of the present invention includes a first temperature sensor which is provided in a housing to detect the temperature of the portion to be cooled, a second temperature sensor and a humidity sensor which are provided outside the housing to respectively detect the temperature and humidity of the air outside the housing. The laser device further includes a judgment unit which judges the possibility of condensation forming on the portion to be cooled by the air outside the housing based on each of the detected results of the first temperature sensor, the second temperature sensor and the humidity sensor, and a notification unit which gives notification of the judgment result of the judgment unit, outside the housing.
Abstract translation: 本发明的激光装置包括：第一温度传感器，设置在壳体中以检测待冷却部分的温度，第二温度传感器和湿度传感器，其设置在壳体外部以分别检测温度和湿度 外面的空气。 激光装置还包括判断单元，其基于第一温度传感器，第二温度传感器和湿度传感器的检测结果中的每一个，判定在壳体外部的空气被冷却的部分上的冷凝形成的可能性，以及 通知单元，其向外壳外部通知判断单元的判断结果。
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27.发明授权公开(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：US10985522B2
公开(公告)日：2021-04-20
申请号：US16533077
申请日：2019-08-06
Applicant: Fanuc Corporation
Inventor： Hiroshi Takigawa , Ryusuke Miyata
Abstract: A laser apparatus calculates a temperature of a temperature increase portion that is raised in temperature by reflection light, and determines and outputs an emergency optical output command with the aim of ensuring that the calculated temperature does not exceed a first predetermined temperature, which is set at a lower temperature than an upper limit heat resistance temperature, and if necessary, controlling the temperature to or below a second predetermined temperature set at a lower temperature than the first predetermined temperature. When the emergency optical output command is to be output, a control unit switches an optical output command output thereby to the emergency optical output command and outputs the emergency optical output command.
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公开(公告)号：US10527798B2
公开(公告)日：2020-01-07
申请号：US16041871
申请日：2018-07-23
Applicant: FANUC CORPORATION
Inventor： Munekazu Matsuda , Hiroshi Takigawa
IPC: G02B6/35 , B23K26/067 , G02B6/42 , G02B6/28 , G02B26/08 , G02B6/26 , G02B27/09 , G02B27/30 , H01S3/067 , G02B6/36
Abstract: A fiber selector includes: a plurality of first reflecting members corresponding to a plurality of focusing optical systems which focus a laser beam from a collimating optical system, and equipped with a reflecting surface capable of reflecting the laser beam towards the focusing optical system; a rotary motor that rotationally moves the first reflecting member between a first position at which the laser beam reflects and a second position which does not block the laser beam, in which the fiber selector rotationally moves the plurality of first reflecting members between the first position and second position so as to selectively switch the propagating direction of the laser beam to any of the plurality of focusing optical systems, in which the reflecting surface of the first reflecting member is a plane perpendicular to the rotation axis of the shaft to which this first reflecting member is fixed, and is arranged so as to face the direction of the rotary motor that causes the shaft to which this first reflecting member is fixed to rotate.
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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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