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1. 发明授权

US07496126B2 Gas laser oscillator and method of measuring laser gas replacement amount 有权
标题翻译：气体激光振荡器及测量激光气体更换量的方法
公开(公告)号：US07496126B2
公开(公告)日：2009-02-24
申请号：US11700768
申请日：2007-02-01
申请人： Yoshitaka Kubo , Toshiyasu Shiomi , Akira Egawa , Kazuhiro Suzuki
发明人： Yoshitaka Kubo , Toshiyasu Shiomi , Akira Egawa , Kazuhiro Suzuki
IPC分类号： H01S3/22
CPC分类号： H01S3/036 , H01S3/10069 , H01S3/104
摘要： A gas laser oscillator includes a supply-side valve for regulating a laser gas supply to a gas chamber, an exhaust-side valve for regulating a laser gas exhaust from the gas chamber, a gas pressure measuring device for measuring a pressure in the gas chamber, and a control device functioning as a laser gas replacement measuring device. The control device makes a first measurement and a second measurement of the pressure in the gas chamber by a gas pressure measuring device at a predetermined time interval during the vacuuming or purging of the gas chamber, and determines the laser gas replacement amount per unit time during the laser oscillating operation, based on the results of the first and second measurements.
摘要翻译：气体激光振荡器包括用于调节对气室的激光气体供应的供给侧阀，用于调节来自气室的激光气体排出的排气侧阀，用于测量气室中的压力的气体压力测量装置以及用作激光气体置换测量装置的控制装置。控制装置在气室的抽真空或吹扫期间，以预定的时间间隔，通过气体压力测量装置对气室中的压力进行第一次测量和第二次测量，并且确定每单位时间内的激光气体替换量激光振荡操作，基于第一和第二测量的结果。

2. 发明申请

US20070177649A1 Gas laser oscillator and method of measuring laser gas replacement amount 有权
标题翻译：气体激光振荡器及测量激光气体更换量的方法
公开(公告)号：US20070177649A1
公开(公告)日：2007-08-02
申请号：US11700768
申请日：2007-02-01
申请人： Yoshitaka Kubo , Toshiyasu Shiomi , Akira Egawa , Kazuhiro Suzuki
发明人： Yoshitaka Kubo , Toshiyasu Shiomi , Akira Egawa , Kazuhiro Suzuki
IPC分类号： H01S3/223 , H01S3/22
CPC分类号： H01S3/036 , H01S3/10069 , H01S3/104
摘要： A gas laser oscillator includes a supply-side valve for regulating a laser gas supply to a gas chamber, an exhaust-side valve for regulating a laser gas exhaust from the gas chamber, a gas pressure measuring device for measuring a pressure in the gas chamber, and a control device functioning as a laser gas replacement measuring device. The control device makes a first measurement and a second measurement of the pressure in the gas chamber by a gas pressure measuring device at a predetermined time interval during the vacuuming or purging of the gas chamber, and determines the laser gas replacement amount per unit time during the laser oscillating operation, based on the results of the first and second measurements.
摘要翻译：气体激光振荡器包括用于调节对气室的激光气体供应的供给侧阀，用于调节来自气室的激光气体排出的排气侧阀，用于测量气室中的压力的气体压力测量装置以及用作激光气体置换测量装置的控制装置。控制装置在气室的抽真空或吹扫期间，以预定的时间间隔，通过气体压力测量装置对气室中的压力进行第一次测量和第二次测量，并且确定每单位时间内的激光气体替换量激光振荡操作，基于第一和第二测量的结果。

3. 发明授权

US5412685A Laser oscillator 失效
标题翻译：激光振荡器
公开(公告)号：US5412685A
公开(公告)日：1995-05-02
申请号：US244915
申请日：1994-06-15
申请人： Akira Egawa , Michinori Maeda , Yoshitaka Kubo
发明人： Akira Egawa , Michinori Maeda , Yoshitaka Kubo
IPC分类号： H01S3/07 , H01S3/081
CPC分类号： H01S3/081 , H01S3/076
摘要： A laser oscillator which is capable of providing a circularly polarized laser beam by an external optical system having a brief configuration. A folding section of a folded-type resonator (10) comprises reflecting mirrors (4a), (4b) and (4c). The reflecting mirror (4a) is inclined at an angle of 45.degree. to an optical axis of an excitation section (3a), and the reflecting mirror (4c) is inclined at an angle of 45.degree. to an optical axis of an excitation section (3b). The reflecting mirror (4b) is horizontally arranged so that the center of the mirror is positioned at the vertex of an isosceles right triangle with respect to the reflecting mirrors (4a) and (4c). Thus, an S polarized-light component of a laser beam from the excitation section (3b) is reflected by the reflecting mirror (4c) toward the reflecting mirror (4b). Further, a P polarized-light component of the laser beam is reflected by the reflecting mirror (4b) to the reflecting mirror (4a), and the S polarized-light component is reflected by the reflecting mirror (4a), thus a laser beam having a linearly polarized-light component as shown by an arrow (11) is outputted from the folded-type resonator (10). Accordingly, only a 1/4 wave-length mirror is used on the outside of the folded-type resonator (10); nevertheless a circularly polarized laser beam can be provided simply.
摘要翻译： PCT No.PCT / JP93 / 01494 Sec。 371日期：1994年6月15日 102（e）1994年6月15日PCT 1993年10月14日PCT PCT。公开号WO94 / 10727 日期：1994年5月11日。一种激光振荡器，其能够通过具有简短配置的外部光学系统提供圆偏振激光束。折叠式谐振器（10）的折叠部分包括反射镜（4a），（4b）和（4c）。反射镜（4a）相对于激励部（3a）的光轴以45°的角度倾斜，反射镜（4c）以与激励部的光轴成45度的角度倾斜 3b）。反射镜（4b）水平布置成使得反射镜的中心相对于反射镜（4a）和（4c）位于等腰直角三角形的顶点。因此，来自激励部分（3b）的激光束的S偏振光分量被反射镜（4c）反射到反射镜（4b）。此外，激光的P偏振光分量被反射镜（4b）反射到反射镜（4a），并且S偏振光分量被反射镜（4a）反射，因此激光束从折叠式谐振器（10）输出如箭头（11）所示的线偏振光分量。因此，在折叠型谐振器（10）的外侧仅使用1/4波长镜。然而，可以简单地提供圆偏振激光束。

4. 发明授权

US5696787A Laser oscillation apparatus 失效
标题翻译：激光振荡装置
公开(公告)号：US5696787A
公开(公告)日：1997-12-09
申请号：US514156
申请日：1995-08-11
申请人： Akira Egawa , Michinori Maeda , Yoshitaka Kubo
发明人： Akira Egawa , Michinori Maeda , Yoshitaka Kubo
IPC分类号： B23K26/06 , G02B27/28 , H01S3/081
CPC分类号： G02B27/28 , B23K26/06 , B23K26/064 , B23K26/0643 , B23K26/0648 , B23K26/0665
摘要： An external optical system is simplified in construction so that a laser oscillation apparatus is low-priced and compact as a whole. On the side of one end portion (10A) of a return-type resonator (10), a laser beam is reflected by a polarizing mirror (147) to be incident upon a polarizing mirror (146) which is situated diagonally below the mirror (147), and is also reflected by a polarizing mirror (142) to be incident upon a polarizing mirror (141) which is situated diagonally above the mirror (142). Thus, at the one end portion (10A), the polarizing mirror (141) and the like are arranged so that optical axes cross each other. Since the emitted laser beam forms a linear polarized beam inclined at an angle of 45.degree. to a horizontal plane, as indicated by arrow (100), the laser beam can be subjected to circular polarization by using only one 1/4-wavelength mirror. Thus, the construction of the external optical system can be simplified. Since the optical axes cross each other at the return side, moreover, the construction can be made compact as a whole.
摘要翻译：外部光学系统的结构简化，使得激光振荡装置整体价格低廉且紧凑。在返回型谐振器（10）的一个端部（10A）的一侧，激光束被偏振镜147反射以入射到偏光镜146上，该偏振镜位于反射镜的下方 147），并且还被偏振镜（142）反射以入射到位于反射镜（142）上方的对角线的偏振镜（141）上。因此，在一个端部（10A）处，偏振镜（141）等被布置成使得光轴彼此交叉。由于发射的激光束形成与水平面成45度角倾斜的线性偏振光束，如箭头（100）所示，激光束可以仅使用一个+ E， + EE波长镜。因此，可以简化外部光学系统的构造。此外，由于光轴在返回侧彼此交叉，所以整体上可以使结构紧凑。

5. 发明申请

US20060178770A1 Laser processing system 有权
标题翻译：激光加工系统
公开(公告)号：US20060178770A1
公开(公告)日：2006-08-10
申请号：US11349254
申请日：2006-02-08
申请人： Akira Egawa , Kazuhiro Suzuki , Motohiko Sato
发明人： Akira Egawa , Kazuhiro Suzuki , Motohiko Sato
IPC分类号： G06F19/00
CPC分类号： B23K26/08 , G05B19/4103 , G05B2219/34391 , G05B2219/45165 , G05B2219/49353
摘要： A laser processing system including a laser processing machine capable of operating along an inherent control axis, an axis driving section driving the control axis of the laser processing machine, a laser oscillator supplying a laser beam to the laser processing machine, a control unit controlling the axis driving section and the laser oscillator, and a transfer line connecting the axis driving section and the laser oscillator to the control unit in a daisy-chain mode. The control unit includes a data preparing section preparing, from a given laser processing program, motion data commanded to the axis driving section and laser output-condition data commanded to the laser oscillator; a data converting section converting the motion data and the laser output-condition data, prepared by the data preparing section, into serial data including the motion data and the laser output-condition data described in a time-series fashion, based on a communication data format common to the axis driving section and the laser oscillator; and a data transmitting section transmitting the serial data, obtained by the data converting section, to the transfer line at a predetermined command cycle common to the motion data and the laser output-condition data included in the serial data.
摘要翻译：一种激光加工系统，包括能够沿着固有的控制轴进行操作的激光加工机，驱动激光加工机的控制轴的轴驱动部，激光加工机的激光振荡器，控制单元轴驱动部和激光振荡器，以及以菊花链模式将轴驱动部和激光振荡器连接到控制单元的传输线。控制单元包括数据准备部分，其从给定的激光处理程序准备指令到轴驱动部分的运动数据和命令到激光振荡器的激光输出条件数据; 数据转换部分，根据通信数据将由数据准备部分准备的运动数据和激光输出条件数据转换为包括以时间序列方式描述的运动数据和激光输出条件数据的串行数据格式与轴驱动部分和激光振荡器共同; 以及数据发送部，其以由运动数据共同的预定命令周期和包括在串行数据中的激光输出状态数据，将由数据转换部获得的串行数据传输到传输线。

6. 发明授权

US07370796B2 Laser processing system 有权
标题翻译：激光加工系统
公开(公告)号：US07370796B2
公开(公告)日：2008-05-13
申请号：US11349254
申请日：2006-02-08
申请人： Akira Egawa , Kazuhiro Suzuki , Motohiko Sato
发明人： Akira Egawa , Kazuhiro Suzuki , Motohiko Sato
IPC分类号： G06K7/10 , G06K7/14
CPC分类号： B23K26/08 , G05B19/4103 , G05B2219/34391 , G05B2219/45165 , G05B2219/49353
摘要： A laser processing system including a laser processing machine capable of operating along an inherent control axis, an axis driving section driving the control axis of the laser processing machine, a laser oscillator supplying a laser beam to the laser processing machine, a control unit controlling the axis driving section and the laser oscillator, and a transfer line connecting the axis driving section and the laser oscillator to the control unit in a daisy-chain mode. The control unit includes a data preparing section preparing, from a given laser processing program, motion data commanded to the axis driving section and laser output-condition data commanded to the laser oscillator; a data converting section converting the motion data and the laser output-condition data, prepared by the data preparing section, into serial data including the motion data and the laser output-condition data described in a time-series fashion, based on a communication data format common to the axis driving section and the laser oscillator; and a data transmitting section transmitting the serial data, obtained by the data converting section, to the transfer line at a predetermined command cycle common to the motion data and the laser output-condition data included in the serial data.
摘要翻译：一种激光加工系统，包括能够沿着固有的控制轴进行操作的激光加工机，驱动激光加工机的控制轴的轴驱动部，激光加工机的激光振荡器，控制单元轴驱动部和激光振荡器，以及以菊花链模式将轴驱动部和激光振荡器连接到控制单元的传输线。控制单元包括数据准备部分，其从给定的激光处理程序准备指令到轴驱动部分的运动数据和命令到激光振荡器的激光输出条件数据; 数据转换部分，根据通信数据将由数据准备部分准备的运动数据和激光输出条件数据转换为包括以时间序列方式描述的运动数据和激光输出条件数据的串行数据格式与轴驱动部分和激光振荡器共同; 以及数据发送部，其以由运动数据共同的预定命令周期和包括在串行数据中的激光输出状态数据，将由数据转换部获得的串行数据传输到传输线。

7. 发明申请

US20060081575A1 Laser-machining device 有权
标题翻译：激光加工装置
公开(公告)号：US20060081575A1
公开(公告)日：2006-04-20
申请号：US11247258
申请日：2005-10-12
申请人： Akira Egawa , Kazuhiro Suzuki , Hiroaki Tokito
发明人： Akira Egawa , Kazuhiro Suzuki , Hiroaki Tokito
IPC分类号： B23K26/14
CPC分类号： B23K26/04 , B23K26/38 , B23K26/382
摘要： A laser-machining device (1) for machining a workpiece (W) by radiating it with the laser beam output from a nozzle (42) of a laser oscillator (31) is disclosed. A gap amount sensor (43) detects the gap amount between the workpiece and the nozzle. An approach unit (12, 41) causes the nozzle to approach the workpiece to a position suitable for the laser machining. The approach unit performs a first approach operation (12a) for making the nozzle approach the workpiece using the gap amount detected by the gap amount sensor until the gap amount comes to assume a predetermined value, and a second approach operation (12b), after the first approach operation, for causing the nozzle to approach the workpiece until the complete approach without using the gap amount detected by the gap amount sensor. As a result, the required time is shorter and a stable piercing process can be executed.
摘要翻译：公开了一种用于通过从激光振荡器（31）的喷嘴（42）输出的激光束照射工件（W）来加工工件（W）的激光加工装置（1）。间隙量传感器（43）检测工件与喷嘴之间的间隙量。接近单元（12,41）使得喷嘴接近工件到适于激光加工的位置。接近单元执行用于使喷嘴接近工件的第一接近操作（12a），使用由间隙量传感器检测到的间隙量直到间隙量达到预定值，并且第二接近操作（12b）在第一接近操作之后，用于使喷嘴接近工件直到完全进入，而不使用间隙量传感器检测到的间隙量。结果，所需时间更短，并且可以执行稳定的穿孔过程。

8. 发明授权

US07566844B2 Laser-machining device 有权
标题翻译：激光加工装置
公开(公告)号：US07566844B2
公开(公告)日：2009-07-28
申请号：US11247258
申请日：2005-10-12
申请人： Akira Egawa , Kazuhiro Suzuki , Hiroaki Tokito
发明人： Akira Egawa , Kazuhiro Suzuki , Hiroaki Tokito
IPC分类号： B23K26/00 , B23K26/08
CPC分类号： B23K26/04 , B23K26/38 , B23K26/382
摘要： A laser-machining device (1) for machining a workpiece (W) by radiating it with the laser beam output from a nozzle (42) of a laser oscillator (31) is disclosed. A gap amount sensor (43) detects the gap amount between the workpiece and the nozzle. An approach unit (12, 41) causes the nozzle to approach the workpiece to a position suitable for the laser machining. The approach unit performs a first approach operation (12a) for making the nozzle approach the workpiece using the gap amount detected by the gap amount sensor until the gap amount comes to assume a predetermined value, and a second approach operation (12b), after the first approach operation, for causing the nozzle to approach the workpiece until the complete approach without using the gap amount detected by the gap amount sensor. As a result, the required time is shorter and a stable piercing process can be executed.
摘要翻译：公开了一种用于通过从激光振荡器（31）的喷嘴（42）输出的激光束照射工件（W）来加工工件（W）的激光加工装置（1）。间隙量传感器（43）检测工件与喷嘴之间的间隙量。接近单元（12,41）使得喷嘴接近工件到适于激光加工的位置。接近单元执行用于使喷嘴接近工件的第一接近操作（12a），使用由间隙量传感器检测的间隙量直到间隙量达到预定值，以及第二接近操作（12b）第一接近操作，用于使喷嘴接近工件直到完全进入，而不使用由间隙量传感器检测到的间隙量。结果，所需时间更短，并且可以执行稳定的穿孔过程。

9. 发明申请

US20050206918A1 Laser unit 审中-公开
标题翻译：激光单元
公开(公告)号：US20050206918A1
公开(公告)日：2005-09-22
申请号：US11083303
申请日：2005-03-18
申请人： Akira Egawa , Kazuhiro Suzuki , Motohiko Sato
发明人： Akira Egawa , Kazuhiro Suzuki , Motohiko Sato
IPC分类号： H01S3/13 , H01S3/036 , H01S3/041 , H01S3/07 , H01S3/097 , H01S3/104 , H01S3/134 , G06F15/00 , G03F3/08
CPC分类号： H01S3/09705 , H01S3/036 , H01S3/041 , H01S3/073 , H01S3/09702 , H01S3/1305 , H01S3/134
摘要： A laser unit capable of suitably updating a correction coefficient for correcting a laser output command for a laser oscillator. Validation of input of an update activation signal for the correction coefficient (F1=1) or waiting is carried out by operation of a display, a keyboard or a switch or by inputting an external signal. Flag F2 indicating automatic running, flag F3 indicating laser beam output and flag F4 indicating a shutter condition are checked. The correction coefficient is set to “1” only when flags F2, F3 and F4 are all equal to zero. Further, a laser output reference command value is outputted and the correction coefficient is updated after a predetermined time. Otherwise, a message indicating a reason for prohibition of update of the correction coefficient is displayed on an indicator, flag F1 is set to zero and the process is terminated.
摘要翻译：一种能够适当地更新用于校正激光振荡器的激光输出命令的校正系数的激光单元。通过显示器，键盘或开关的操作或通过输入外部信号来执行用于校正系数（F 1 = 1）或等待的更新激活信号的输入的验证。标志F 2表示自动运行，标志F 3表示激光束输出，标志F 4表示快门条件。仅当标志F 2，F 3和F 4都等于零时，校正系数才被设置为“1”。此外，输出激光输出参考指令值，并且在预定时间之后更新校正系数。否则，在指示符上显示指示禁止更新校正系数的原因的消息，标志F 1被设置为零并且处理结束。

10. 发明申请

US20050195867A1 Laser unit 审中-公开
标题翻译：激光单元
公开(公告)号：US20050195867A1
公开(公告)日：2005-09-08
申请号：US11068891
申请日：2005-03-02
申请人： Akira Egawa , Kazuhiro Suzuki , Hiroaki Tokito
发明人： Akira Egawa , Kazuhiro Suzuki , Hiroaki Tokito
IPC分类号： H01S3/041 , B23K26/42 , B23K31/12 , H01S3/04 , H01S3/131 , H01S3/134 , H01S3/00 , H01S3/13
CPC分类号： H01S3/131 , B23K26/702 , B23K31/12 , H01S3/04 , H01S3/1317 , H01S3/134
摘要： A laser unit which has an improved reliability in a measured value of a power correction coefficient used to correct a laser output command. Immediately before the laser oscillator starts discharging after a power supply is turned on, the initial value of a number (or index) for carrying out a warm-up operation is set to zero. A temperature measuring device measures a temperature of a prescribed part of the laser oscillator, and it is decided whether the measured temperature has reached a predetermined temperature. When the measured temperature has reached the predetermined temperature, a normal laser oscillator start processing is executed, and a power correction coefficient is calculated/updated, thereby ending the process. When the measured temperature has not reached the predetermined temperature, the number of times of carrying out a warm-up operation is checked, and the oscillator executes the warm-up operation until the predetermined temperature is obtained within a given number of times. When the number of times of carrying out the warm-up operation exceeds the given number of times, an alarm is displayed to stop the operation of the laser oscillator. Also, an internal discharge carried out to obtain a power correction coefficient may be utilized for the warm-up operation.
摘要翻译：一种激光单元，其具有改善用于校正激光输出命令的功率校正系数的测量值的可靠性。在电源接通之后立即激光振荡器开始放电之前，用于进行预热操作的数字（或指标）的初始值被设置为零。温度测量装置测量激光振荡器的规定部分的温度，并且确定测量的温度是否已经达到预定温度。当测量温度达到预定温度时，执行正常的激光振荡器开始处理，并且计算/更新功率校正系数，从而结束处理。当测量温度未达到预定温度时，检查执行预热操作的次数，并且振荡器执行预热操作，直到在给定次数内获得预定温度。当进行预热操作的次数超过给定次数时，显示报警以停止激光振荡器的操作。此外，为了获得功率校正系数而进行的内部放电可以用于预热操作。

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