公开(公告)号：US06150629A

公开(公告)日：2000-11-21

申请号：US875352

申请日：1997-09-29

申请人： Wolfgang Sievers

发明人： Wolfgang Sievers

IPC分类号： B23K26/00 ,  B23K26/06 ,  B41C1/05 ,  H04N1/40

CPC分类号： B23K26/0613 ,  B41C1/05 ,  H04N1/40037

摘要： A laser engraving machine (4) is used for engraving a workpiece surface (22) by a modulated laser beam in order to form a desired profile in the workpiece surface. The fine structures of the profile are formed by the laser beam of a first laser which is modulated by an acoustooptic modulator (12) with relatively high modulation frequency, while the deep areas of the desired profile are formed by the laser beam of a second laser (10), for which purpose the modulator (12), on the one hand, and the second laser beam source (10), on the other hand, are driven by interrelated but separate control signals (S3, S2). The two perpendicular polarized laser beams from the modulator (12) and the second laser beam source (10) are transmitted and reflected by a selective mirror (14), respectively, and applied commonly via an optical system (18) to the workpiece surface (22) to be machined.

摘要翻译： PCT No.PCT / EP96 / 05277 371日期：1997年9月29日 102（e）日期1997年9月29日PCT 1996年11月28日PCT公布。 WO97 / 19783 PCT公开号 日期1997年6月5日激光雕刻机（4）用于通过调制激光束雕刻工件表面（22），以在工件表面形成期望的轮廓。 轮廓的精细结构由具有相对高的调制频率的声光调制器（12）调制的第一激光器的激光束形成，而所需轮廓的深部区域由第二激光器的激光束形成 （10），另一方面，调制器（12）和第二激光束源（10）为此目的由相关但是分开的控制信号（S3，S2）驱动。 来自调制器（12）和第二激光束源（10）的两个垂直偏振激光束分别由选择镜（14）传播和反射，并且通过光学系统（18）共同施加到工件表面 22）要加工。

公开(公告)号：US5729568A

公开(公告)日：1998-03-17

申请号：US655555

申请日：1996-05-30

申请人： Hans Opower ,  Helmut Huegel ,  Adolf Giesen ,  Friedrich Dausinger

发明人： Hans Opower ,  Helmut Huegel ,  Adolf Giesen ,  Friedrich Dausinger

IPC分类号： B23K26/06 ,  G02B6/04 ,  G02B6/42 ,  H01S5/40 ,  H01S5/42 ,  H01S3/08

CPC分类号： B23K26/0613 ,  B23K26/032 ,  B23K26/06 ,  B23K26/0604 ,  B23K26/064 ,  B23K26/0643 ,  B23K26/0648 ,  B23K26/0665 ,  G02B6/4214 ,  G02B6/4249 ,  H01S5/4025 ,  G02B6/04 ,  H01S5/4012 ,  H01S5/42 ,  H01S5/423

摘要： In order to improve a semiconductor laser system with a plurality of semiconductor laser units comprising a laser oscillator, laser radiation exiting from each of these units, a light-conducting fiber associated with each semiconductor laser unit, a coupling element for coupling the laser radiation exiting from the respective semiconductor laser unit into the respective light-conducting fiber, and a fiber bundle comprising the fibers as light conductor system, a total laser radiation formed by the sum of the coherent laser radiation generated by the respective semiconductor laser units exiting from one end of the fiber bundle, this total laser radiation illuminating a target surface on an object to be irradiated during laser activity of all the semiconductor laser units, such that complex irradiation tasks can be performed with this system in a simple and as effective a manner as possible it is suggested that a control be provided for controlling the power of each individual semiconductor laser unit in a defined manner, and that an irradiation of different surface elements of the target surface with an intensity individually definable for each surface element be specifiable to the control.

摘要翻译： 为了改进具有包括激光振荡器的多个半导体激光器单元的半导体激光器系统，从这些单元中的每一个排出的激光辐射，与每个半导体激光器单元相关联的导光纤维，用于耦合离开的激光辐射的耦合元件 从相应的半导体激光单元到相应的导光纤维，以及包含作为光导体系统的光纤的光纤束，由从一端离开的各个半导体激光器单元产生的相干激光辐射之和形成的总激光辐射 的全部激光辐射照射在所有半导体激光器单元的激光活动期间要照射的物体上的目标表面，使得可以以该系统以简单且有效的方式执行复杂的照射任务 建议提供用于控制每个单独半导体的功率的控制 以定义的方式对激光单元进行激光照射，并且可以将具有对于每个表面元件分别定义的强度的目标表面的不同表面元件的照射指定为该控制。

公开(公告)号：US5076685A

公开(公告)日：1991-12-31

申请号：US546391

申请日：1990-06-29

申请人： Dieter Muller ,  Jurgen Schwarz

发明人： Dieter Muller ,  Jurgen Schwarz

IPC分类号： A61F9/00 ,  A61B18/20 ,  A61F9/008 ,  B23K26/06 ,  B23K26/064 ,  G02B27/09

CPC分类号： G02B27/0977 ,  A61F9/008 ,  A61F9/00821 ,  B23K26/06 ,  B23K26/0604 ,  B23K26/0613 ,  B23K26/064 ,  B23K26/0643 ,  B23K26/0648 ,  B23K26/0665 ,  G02B27/09 ,  G02B27/0911 ,  A61B2018/2025 ,  A61F2009/00855

摘要： Apparatus for determining the focal plane of invisible laser-therapy radiation in ophthalmological instruments. A visible laser marking beam is split by simple means into four individual beams which share the instrument's optical path with the invisible laser radiation and are combined at the instrument's focal plane to form a single light spot.

摘要翻译： 用于确定眼科仪器中不可见激光治疗辐射的焦平面的装置。 可见的激光标记光束通过简单的手段分成四个独立的光束，它们与不可见的激光辐射共享仪器的光路，并在仪器的焦平面处组合形成一个单一的光点。

公开(公告)号：US4982166A

公开(公告)日：1991-01-01

申请号：US317678

申请日：1989-03-01

申请人： Clifford E. Morrow

发明人： Clifford E. Morrow

IPC分类号： A61B18/20 ,  B23K26/06 ,  G02B5/30 ,  H01S3/23

CPC分类号： B23K26/0613 ,  A61B18/20 ,  G02B5/3066 ,  H01S3/2383 ,  Y10S359/90

摘要： Apparatus for combining two laser beams each having a power level into a common colinear laser beam having a power level that is the sum of the power levels of the two laser beams comprising a support, a polarization selective device disposed on the support having a first surfaces upon which a first of the laser beams impinges for transmitting the first laser beam with substantially full power transmission along an axis and having a second surface upon which the second laser beam impinges for reflecting the second laser beam with substantially full power along the axis, resulting in a common colinear beam along the axis, and suitable optical and/or mechanical devices disposed on the support for providing the first and second laser beams to the polarization selective device, the first and second laser beams being substantially orthogonally polarized with respect to each other.

摘要翻译： 一种用于组合两个激光束的装置，每个激光束具有功率电平到具有功率电平的公共共线激光束，该功率电平是包括支撑件的两个激光束的功率电平之和，设置在支撑件上的偏振选择装置具有第一表面 激光束中的第一激光束沿着轴线以基本全功率传输的方式照射第一激光束并且具有第二表面，第二激光束以第二激光束照射以沿着该轴线以基本上全部的功率反射第二激光束，从而产生 在沿着轴线的共线共线束中，以及设置在支撑件上的用于将第一和第二激光束提供给偏振选择装置的合适的光学和/或机械装置，第一和第二激光束相对于彼此基本正交极化 。

公开(公告)号：US4947023A

公开(公告)日：1990-08-07

申请号：US305121

申请日：1988-10-18

申请人： Katsuhiro Minamida ,  Junya Suehiro

发明人： Katsuhiro Minamida ,  Junya Suehiro

IPC分类号： B21B27/00 ,  B23K26/00 ,  B23K26/06 ,  B23K26/08 ,  C21D9/38

CPC分类号： C21D9/38 ,  B23K26/0084 ,  B23K26/0608 ,  B23K26/0613 ,  B23K26/0622 ,  B23K26/0823 ,  B21B2267/10 ,  B21B27/005

摘要： When the power output of a continuous wave oscillated laser is changed to a pulsed laser by Q-switching, in the conventional method of Q-switching, if the pulse repetition rate is changed, the condition of oscillated excitation is changed and the pulse waveform or pulse peak power are simultaneously changed; and therefore, a stable dulling process is impracticable.The present invention decreases the cavity loss of a laser oscillator during a pulse off by decreasing power output of the radio-frequency signal applied to the Q-switch, and consequently, controls the pulse waveform to that required for the roll dulling process. In accordance with the method of the invention, the roughness of the dulled roll surface consists of innumerable small craters and is suitable for a high speed fine dulling process.

摘要翻译： PCT No.PCT / JP88 / 00194 Sec。 371日期：1988年10月18日 102（e）1988年10月18日日期PCT提交1988年2月24日PCT公布。 出版物WO88 / 06504 日期为1988年9月7日。当通过Q开关将连续波振荡激光器的功率输出改变为脉冲激光器时，在常规的Q开关方法中，如果脉冲重复率改变，振荡激励条件 脉冲波形或脉冲峰值功率同时变化; 因此，稳定的钝化过程是不切实际的。 本发明通过减少施加到Q开关的射频信号的功率输出来减少激光振荡器在脉冲关断期间的腔体损耗，并且因此将脉冲波形控制到辊钝化处理所需的波形。 根据本发明的方法，钝化辊表面的粗糙度由无数小的凹坑构成，适用于高速微细钝化处理。

公开(公告)号：US4789770A

公开(公告)日：1988-12-06

申请号：US73610

申请日：1987-07-15

申请人： William H. Kasner ,  James F. Roach ,  Vincent A. Toth

发明人： William H. Kasner ,  James F. Roach ,  Vincent A. Toth

IPC分类号： B23K26/00 ,  B23K26/03 ,  B23K26/06 ,  B23K26/38 ,  H05K1/02 ,  H05K3/00 ,  H05K3/46

CPC分类号： B23K26/0613 ,  B23K26/03 ,  B23K26/032 ,  B23K26/0604 ,  B23K26/386 ,  H05K3/0035 ,  H05K3/0038 ,  H05K1/0269 ,  H05K2201/09509 ,  H05K2203/0207 ,  H05K2203/108 ,  H05K2203/163 ,  H05K3/46

摘要： A controlled depth laser drilling system for a workpiece containing metallic conductors is provided having at least one laser beam (56 and/or 57 of FIG. 5) where a portion of the laser beam (44) will be reflected from the workpiece and back to a drilling depth monitoring means (43) containing optical means capable of reflecting a portion of the original and reflected laser beams into radiation detector means (46', 46" and/or 45', 45"), where the detector means are capable of converting the radiation received into a measurable electrical signals.

公开(公告)号：US4707584A

公开(公告)日：1987-11-17

申请号：US941138

申请日：1986-12-12

申请人： Yoshihide Kimbara

发明人： Yoshihide Kimbara

IPC分类号： B23K26/06 ,  B23K26/073 ,  B23K26/36 ,  G02B27/28 ,  B23K26/00

CPC分类号： B23K26/0613 ,  B23K26/06 ,  B23K26/0604 ,  B23K26/0643 ,  B23K26/0648 ,  B23K26/0665

摘要： A laser beam device for cutting a workpiece in which two circularly polarized beams of opposite polarizations and of slightly different frequencies are combined into the cutting beam.

摘要翻译： 一种用于切割工件的激光束装置，其中将具有相反偏振和稍微不同频率的两个圆偏振光束组合到切割光束中。

公开(公告)号：US4560856A

公开(公告)日：1985-12-24

申请号：US414264

申请日：1982-09-01

申请人： Richard A. Miller ,  George D. Bucher

发明人： Richard A. Miller ,  George D. Bucher

IPC分类号： B23K26/08 ,  B23K26/00 ,  B23K26/02 ,  B23K26/04 ,  B23K26/067 ,  B23K26/12 ,  G21C3/34

CPC分类号： B23K26/0673 ,  B23K26/042 ,  B23K26/043 ,  B23K26/0613 ,  B23K26/067

摘要： Apparatus and method for directing a controlled number of laser pulses onto a work piece to be machined. More specifically, the laser machining apparatus includes an excitable laser and an excitation lamp for continuously exciting the laser to emit a sequence of laser pulses. The application of the laser pulses to the work piece is controlled by an inner-cavity shutter that is opened to permit a precise number of pulses to be directed onto the work piece. The frequency (REP RATE) and pulse width of the laser pulses are controlled by the excitation lamp and, in turn, are set to create a progressive weld of significant depth and structural integrity. In particular there is provided control means for counting the number of laser pulses applied to a machining site of the work piece, whereby a known controllable quantity of energy is imparted to each site. To this end, the counting of the laser pulses begins after the completion of a laser pulse, whereby the actuation of the inner-cavity shutter is not synchronized to the computer but rather to the laser emission so that only whole laser pulses will be applied to the site.

摘要翻译： 将受控数量的激光脉冲引导到待加工的工件上的装置和方法。 更具体地，激光加工设备包括可激发激光器和用于连续激发激光器以发射一系列激光脉冲的激励灯。 将激光脉冲施加到工件由通过打开以允许将精确数量的脉冲引导到工件上的内腔挡板来控制。 激光脉冲的频率（REP RATE）和脉冲宽度由激发灯控制，反过来又被设置为产生显着深度和结构完整性的渐进焊缝。 特别地，提供了用于对施加到工件的加工位置的激光脉冲的数量进行计数的控制装置，由此向每个位置施加已知的可控量的能量。 为此，激光脉冲的计数在激光脉冲完成之后开始，由此内腔快门的致动不与计算机同步，而是激光发射，使得仅将整个激光脉冲施加到 网站。

公开(公告)号：US11945045B2

公开(公告)日：2024-04-02

申请号：US17090709

申请日：2020-11-05

申请人： Applied Materials, Inc.

发明人： Dean Jennings ,  Haifan Liang ,  Mark Yam ,  Vijay Parihar ,  Abhilash J. Mayur ,  Aaron Muir Hunter ,  Bruce E. Adams ,  Joseph M. Ranish

IPC分类号： B23K26/06 ,  B23K26/073 ,  B23K26/352 ,  H01L21/268 ,  H01L21/324 ,  H01L21/02

CPC分类号： B23K26/0608 ,  B23K26/0604 ,  B23K26/0613 ,  B23K26/073 ,  B23K26/0732 ,  B23K26/0736 ,  B23K26/0738 ,  B23K26/352 ,  H01L21/268 ,  H01L21/324 ,  H01L21/02532 ,  H01L21/02675

摘要： A thermal processing apparatus and method in which a first laser source, for example, a CO2 emitting at 10.6 μm is focused onto a silicon wafer as a line beam and a second laser source, for example, a GaAs laser bar emitting at 808 nm is focused onto the wafer as a larger beam surrounding the line beam. The two beams are scanned in synchronism in the direction of the narrow dimension of the line beam to create a narrow heating pulse from the line beam when activated by the larger beam. The energy of GaAs radiation is greater than the silicon bandgap energy and creates free carriers. The energy of the CO2 radiation is less than the silicon bandgap energy so silicon is otherwise transparent to it, but the long wavelength radiation is absorbed by the free carriers.

公开(公告)号：US11850682B2

公开(公告)日：2023-12-26

申请号：US17943425

申请日：2022-09-13

申请人： Corelase Oy

发明人： Matti Närhi ,  Henri Pajukoski

IPC分类号： B23K26/28 ,  B23K26/0622 ,  B23K26/06 ,  B23K26/073 ,  B23K103/10 ,  B23K101/34 ,  B23K26/22

CPC分类号： B23K26/22 ,  B23K26/0608 ,  B23K26/0613 ,  B23K26/0622 ,  B23K26/0626 ,  B23K26/0734 ,  B23K26/28 ,  B23K2101/34 ,  B23K2103/10

摘要： Laser welding methods include focusing laser radiation onto a first metal sheet disposed on a metal part, optionally with one or more intervening metal sheets therebetween. The laser radiation is steered to trace at least one spiral path to spot-weld together the metal parts. The laser radiation includes a center beam and an annular beam to maintain a stable keyhole. One method is tailored to weld aluminum parts, e.g., with high gas content and/or dissimilar compositions, and the laser radiation traces first an outward spiral path and then an inward spiral path. The center beam is pulsed during one segment of the inward spiral path. Another method is tailored to weld steel or copper parts having a coating at an interface therebetween, and the laser radiation traces an inward spiral path. The interface may be a zero-gap interface, or a non-zero gap may exist.