公开(公告)号：US10461488B2

公开(公告)日：2019-10-29

申请号：US15151890

申请日：2016-05-11

Applicant: FANUC CORPORATION

Inventor： Akihiko Nishio ,  Yuji Nishikawa ,  Hiroyuki Yoshida ,  Hisatada Machida

IPC: H01S3/04 ,  G01K13/00 ,  H01S5/00 ,  H01S3/00 ,  H01S5/024 ,  H01S3/131

Abstract: A laser device provided with the function of predicting occurrence of condensation and preventing occurrence of condensation in advance. The laser device is provided with a controlling part calculating a reference temperature for judging whether a cooling water feed device may feed cooling water based on a temperature measured by a thermometer and a humidity measured by a hygrometer, and a comparing part comparing a reference temperature and a cooling water temperature. The cooling water feed device is configured to stop the feed of cooling water after a command for starting up the laser oscillator has been output and the cooling water temperature is lower than the reference temperature and to start or continue the feed of cooling water when the cooling water temperature is the reference temperature or more.

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。