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公开(公告)号：US20090184096A1
公开(公告)日：2009-07-23
申请号：US11597062
申请日：2006-07-13
IPC分类号： B23K26/38
CPC分类号： B23K26/0736 , B23K26/0613 , B23K26/0853
摘要： A laser machining apparatus includes a laser generator for generating a laser beam and a driver unit for moving the laser beam relatively with respect to a workpiece as to emit the laser beam on the workpiece. The laser beam includes plural laser pulses. The laser pulses have spots each having a longitudinal direction. The driver unit moves the laser beam in the longitudinal direction relatively with respect to the workpiece so that the spots overlap each other. This laser machining apparatus can process the workpiece at high quality and high productivity.
摘要翻译： 激光加工装置包括用于产生激光束的激光发生器和用于相对于工件移动激光束以在工件上发射激光束的驱动单元。 激光束包括多个激光脉冲。 激光脉冲具有各自具有纵向方向的点。 驱动器单元相对于工件沿纵向方向移动激光束，使得光斑彼此重叠。 该激光加工装置可以高质量和高生产率加工工件。
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公开(公告)号：US5856993A
公开(公告)日：1999-01-05
申请号：US995942
申请日：1997-12-22
申请人： Takuma Katoh , Hidehiko Karasaki , Hitoshi Hongu
发明人： Takuma Katoh , Hidehiko Karasaki , Hitoshi Hongu
CPC分类号： H01S3/036 , H01S3/0346
摘要： A gas laser oscillator has at least a partial reflection unit and a total reflection unit, each of which comprises an extension unit for connecting between a gas introducing unit and a fixed block unit. The gas introducing unit has a gas inlet port for circulating laser gas in a laser tube, and the fixed block unit is provided for fixing a reflector. A gas inlet port of the gas introducing unit is arranged with a predetermined interval of 120 mm or more so that the reflectors are free from contamination by floating powders and deterioration by ultraviolet lays.
摘要翻译： 气体激光振荡器至少具有局部反射单元和全反射单元，每个反射单元包括用于连接气体引入单元和固定块单元的延伸单元。 气体引入单元具有用于在激光管中循环激光气体的气体入口，并且固定块单元用于固定反射器。 气体导入单元的气体入口以120mm或更大的预定间隔布置，使得反射器不受浮粉的污染和紫外线的劣化。
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公开(公告)号：US20070153842A1
公开(公告)日：2007-07-05
申请号：US11713009
申请日：2007-03-02
CPC分类号： H01S3/11 , B23K26/032 , B23K26/06 , B23K26/0622 , H01S3/005 , H01S3/0085 , H01S3/10038 , H01S3/10069 , H01S3/1022 , H01S3/1306 , H01S3/136
摘要： A laser controlling method can generate laser of stable laser pulses, and eliminate useless time from a machining procedure. The method uses a gain medium and a Q-switch, and emits exciting light to the gain medium, thereby setting the Q-switch in a continuous oscillation mode, and prepares a given Q-switch pause time before a laser pulse is generated. When the continuous oscillation is kept going longer than a given time, the control method sets a Q-switch pause time for obtaining a first laser pulse to be different from a Q-switch pause time for obtaining a second laser pulse and onward.
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公开(公告)号：US06556331B1
公开(公告)日：2003-04-29
申请号：US09691250
申请日：2000-10-19
申请人： Hidehiko Karasaki , Kimiko Kawazoe
发明人： Hidehiko Karasaki , Kimiko Kawazoe
IPC分类号： G02B2608
CPC分类号： B23K26/08 , B23K26/082 , G02B7/1821 , G02B26/101
摘要： A reliable galvano-mirror employed for laser machining is disclosed. The mirror is far reduced its weight for getting a higher rotation. On the rear surface of the mirror, a lightweight rib-structure, which is formed from a mirror support beam centered across the surface and some ribs extending from the beam, holds the mirror. Against a distortion occurred in rotating at high speed, the mirror is provided with a high rigidity. And the mirror is structured integrally with the motor shaft holder. Besides, a slit is formed between the rib disposed close to the holder and the support beam centered across the rear surface of the mirror. Providing slit enables to minimize a local distortion caused by a stress from fastening screws to attach the mirror to the motor shaft.
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公开(公告)号：US5422906A
公开(公告)日：1995-06-06
申请号：US153105
申请日：1993-11-17
申请人： Hidehiko Karasaki , Shigeki Yamane
发明人： Hidehiko Karasaki , Shigeki Yamane
CPC分类号： H01S3/0014 , H01S3/03 , H01S3/134 , H01S3/036
摘要： A laser resonator includes; an optical oscillator including a discharge tube, and a pair of reflecting mirrors arranged at both ends of the discharge tube while inner surfaces of the mirrors confront each other; electrodes confronting each other with the discharge tube held therebetween; a gas pipe connected to the optical oscillator, and a gas circulating device connected to the gas pipe for circulating laser gas, wherein the laser resonator generates laser light when a voltage impressed to the electrodes invites discharge of the discharge tube while laser gas is circulated in the discharge tube by the gas circulating device. The laser resonator further includes a diffraction grating provided at one outer surface of either of the pair of reflecting mirrors to take out a part of the laser light passing through the reflecting mirror in a direction of a predetermined angle, and a photodetector for detecting an intensity of the laser light, the photodetector being disposed in the direction of the predetermined angle of that part of the taken-out laser light.
摘要翻译： 激光谐振器包括： 包括放电管的光学振荡器和布置在放电管两端的一对反射镜，同时反射镜的内表面彼此相对; 彼此面对的电极与放电管保持在其间; 连接到光学振荡器的气体管道和连接到用于循环激光气体的气体管道的气体循环装置，其中当激光电压施加到电极时，激光谐振器产生激光，从而在激光气体循环时排出放电管 放电管由气体循环装置。 激光谐振器还包括设置在一对反射镜中的任一个的一个外表面处的衍射光栅，以沿预定角度的方向取出穿过反射镜的一部分激光，以及用于检测强度的光电检测器 所述光检测器被设置在所述被取出的激光的该部分的预定角度的方向上。
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公开(公告)号：US20070153843A1
公开(公告)日：2007-07-05
申请号：US11713681
申请日：2007-03-05
CPC分类号： H01S3/11 , B23K26/032 , B23K26/06 , B23K26/0622 , H01S3/005 , H01S3/0085 , H01S3/10038 , H01S3/10069 , H01S3/1022 , H01S3/1306 , H01S3/136
摘要： A laser controlling method can generate laser of stable laser pulses, and eliminate useless time from a machining procedure. The method uses a gain medium and a Q-switch, and emits exciting light to the gain medium, thereby setting the Q-switch in a continuous oscillation mode, and prepares a given Q-switch pause time before a laser pulse is generated. When the continuous oscillation is kept going longer than a given time, the control method sets a Q-switch pause time for obtaining a first laser pulse to be different from a Q-switch pause time for obtaining a second laser pulse and onward.
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公开(公告)号：US07005605B2
公开(公告)日：2006-02-28
申请号：US10606805
申请日：2003-06-27
IPC分类号： B23K26/06
CPC分类号： G02B27/0927 , B23K26/066 , B23K26/073 , B23K2101/36 , G02B27/09 , G02B27/0955
摘要： A laser machining apparatus machines a workpiece at uniform intensity by converting a CO2 laser beam to uniform intensity using an intensity-converting element and a phase-matching element. The optical transmission system is configured such that the starting point of the laser beam pointing vector and the exit face of the intensity-converting element are mutually conjugated with respect to the optical transmission system. This structure offers stable machining by ensuring that the laser beam always enters the intensity-converting element at its center, even if the pointing vector of the laser beam shifts.
摘要翻译： 激光加工设备通过使用强度转换元件和相位匹配元件将CO 2/2激光束转换成均匀的强度，以均匀的强度对工件进行加工。 光传输系统被配置为使得激光束指向矢量的起始点和强度转换元件的出射面相对于光传输系统相互共轭。 这种结构通过确保激光束始终在其中心处进入强度转换元件，即使激光束的指向矢量偏移也能提供稳定的加工。
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8.发明授权Optical mirror and optical scanner and laser machining apparatus using the same 有权光学镜和光学扫描仪及使用其的激光加工设备公开(公告)号：US06633422B2
公开(公告)日：2003-10-14
申请号：US10231204
申请日：2002-08-30
申请人： Hidehiko Karasaki , Kimiko Kawazoe
发明人： Hidehiko Karasaki , Kimiko Kawazoe
IPC分类号： G02B2608
CPC分类号： B23K26/08 , B23K26/082 , G02B7/1821 , G02B26/101
摘要： A reliable galvano-mirror employed for laser machining is disclosed. The mirror is far reduced its weight for getting a higher rotation. On the rear surface of the mirror, a lightweight rib-structure, which is formed from a mirror support beam centered across the surface and some ribs extending from the beam, holds the mirror. Against a distortion occurred in rotating at high speed, the mirror is provided with a high rigidity. And the mirror is structured integrally with the motor shaft holder. Besides, a slit is formed between the rib disposed close to the holder and the support beam centered across the rear surface of the mirror. Providing slit enables to minimize a local distortion caused by a stress from fastening screws to attach the mirror to the motor shaft.
摘要翻译： 公开了一种用于激光加工的可靠的电流镜。 镜子远远减少了它的重量，以获得更高的旋转。 在反射镜的后表面上，由反射镜支撑梁形成的轻巧的肋结构，其中心横跨表面和从梁延伸的一些肋保持了反射镜。 为了在高速旋转时发生变形，镜子具有高刚性。 并且镜子与电动机轴架一体地构成。 此外，在靠近保持器设置的肋和跨过镜的后表面的支撑梁之间形成狭缝。 提供狭缝使得能够最小化由紧固螺钉施加的应力引起的局部变形，以将反射镜连接到电机轴。
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9.发明授权公开(公告)号：US06586703B2
公开(公告)日：2003-07-01
申请号：US09873529
申请日：2001-06-04
IPC分类号： B23K2604
CPC分类号： B23K26/382 , B23K26/03 , B23K26/032 , B23K26/0622 , B23K26/389 , B23K26/40 , B23K2101/42 , B23K2103/16 , B23K2103/42 , B23K2103/50 , H05K1/0269 , H05K3/0035 , H05K2203/163
摘要： This is to present a laser machining method and a laser machining apparatus for drilling holes, capable of achieving conduction securely between adjacent conductive layers, by detecting the machining state of a workpiece adequately, and controlling the machining. For this purpose, the number of laser pulse outputs capable of machining securely is preset. During laser machining, reflected laser beam intensity from the workpiece and incident laser beam intensity are detected, and the machining state of the workpiece is detected. As a result, when judging the workpiece has reached a desired machining state, laser machining is finished if the number of times of laser machining has not reached the set number of laser pulse outputs. If it is judged that the workpiece has not reached the desired machining state, laser machining is finished when reaching the set number of laser pulse outputs. As a result, the laser machining method and laser machining apparatus capable of drilling holes of high quality at high yield and shortening the machining cycle time can be realized.
摘要翻译： 这是提出一种用于钻孔的激光加工方法和激光加工装置，其能够通过充分检测工件的加工状态并且控制加工来在相邻导电层之间牢固地实现导电。 为此，预先设定能够安全加工的激光脉冲输出的数量。 在激光加工期间，检测到来自工件的反射激光束强度和入射激光束强度，并检测工件的加工状态。 结果，当判定工件达到期望的加工状态时，如果激光加工次数尚未达到设定数量的激光脉冲输出，则激光加工结束。 如果判断出工件未达到所需的加工状态，则在到达设定数量的激光脉冲输出时，激光加工结束。 结果，可以实现能够以高产量钻出高质量的孔并缩短加工循环时间的激光加工方法和激光加工装置。
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10.发明授权Laser control system for use in laser processing machine utilizing laser-induced plasma detecting system 失效激光控制系统，用于激光加工机器，采用激光等离子体检测系统
公开(公告)号：US5969335A
公开(公告)日：1999-10-19
申请号：US931687
申请日：1997-09-16
申请人： Hidehiko Karasaki
发明人： Hidehiko Karasaki
CPC分类号： B23K26/032 , B23K26/03 , B23K26/042 , B23K26/0622
摘要： In a laser processing machine, a laser control system includes a photo detector (21) detecting intensity of light generated by laser-induced plasma produced by applying laser beams on an object, and a control unit (30) for controlling a laser pulse signal to have an optimum pulse width and optimum pulse period effective in each pulse signal based on the detection signal, so that the optimized laser pulse signal is obtained to thereby automatically control the generation of the laser beams, where the pulse width of each pulse is controlled by the control unit (30) so that the detection signal outputted from the photo detector (21) has its peak values to be all equal to a constant level (Vp), and the pulse period of each laser pulse signal is so controlled as to have a reference threshold level (Vr) which is previously given by the material of the object, and thus the total processing time in perforating process can be remarkably reduced.
摘要翻译： 在激光加工机中，激光控制系统包括光检测器（21），用于检测通过在物体上施加激光而产生的激光诱导等离子体产生的光的强度;以及控制单元（30），用于控制激光脉冲信号 具有基于检测信号在每个脉冲信号中有效的最佳脉冲宽度和最佳脉冲周期，从而获得优化的激光脉冲信号，从而自动控制激光束的产生，其中每个脉冲的脉冲宽度由 控制单元（30）使得从光电检测器（21）输出的检测信号的峰值全部等于恒定电平（Vp），并且将每个激光脉冲信号的脉冲周期控制为具有 预先由物体的材料给出的参考阈值水平（Vr），从而可以显着地减少穿孔过程中的总处理时间。
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