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公开(公告)号：US20220410315A1
公开(公告)日：2022-12-29
申请号：US17895403
申请日：2022-08-25
发明人： Guang Lu
IPC分类号： B23K26/08 , B23K26/082 , B23K26/12
摘要： Varied embodiments of a laser-based machine tool, and techniques for controlling the same are provided. Some embodiments relate to techniques to facilitate uniform and reproducible processing of workpieces. Other embodiments relate to a zoom lens having a quickly-variable focal length. Still other embodiments relate to various features of a laser-based multi-axis machine tool that can facilitate efficient delivery of laser energy to a scan head, that can address thermomechanical issues that may arise during workpiece processing, etc. Another embodiment relates to techniques for minimizing or preventing undesired accumulation of particulate matter on workpiece surfaces during processing. A number of other embodiments and arrangements are also detailed.
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公开(公告)号：US20220168847A1
公开(公告)日：2022-06-02
申请号：US17599756
申请日：2020-05-29
发明人： Jan KLEINERT , Zhibin LIN , Joel SCHRAUBEN , Mark UNRATH , Honghua HU , Ruolin CHEN , Chuan YANG , Geoffrey LOTT , Daragh FINN
IPC分类号： B23K26/362 , B23K26/0622 , B23K26/082 , B23K26/06 , G02F1/33
摘要： Numerous embodiments are disclosed. Many of which relate to methods of forming vias in workpieces such as printed circuit boards. Some embodiments relates techniques for indirectly ablating a region of an electrical conductor structure of, for example, a printed circuit board by spatially distributing laser energy throughout the region before the electrical conductor is indirectly ablated. Other embodiments relate to techniques for temporally-dividing laser pulses, modulating the optical power within laser pulses, and the like.
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公开(公告)号：US11281069B2
公开(公告)日：2022-03-22
申请号：US16619875
申请日：2018-06-19
发明人： James Brookhyser , Kurt Eaton
摘要： A beam positioner includes a first acousto-optic (AO) deflector (AOD) comprising an AO cell and a transducer attached to the AO cell, and a wave plate optically contacted to the first AOD.
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公开(公告)号：US20210276125A1
公开(公告)日：2021-09-09
申请号：US16499511
申请日：2018-04-30
发明人： Guang LU , Brian Johansen , Mark Kosmowski , Ho Wai Lo , Guangyu Li
IPC分类号： B23K26/08 , B23K26/082 , B23K26/12
摘要： Varied embodiments of a laser-based machine tool, and techniques for controlling the same are provided. Some embodiments relate to techniques to facilitate uniform and reproducible processing of workpieces. Other embodiments relate to a zoom lens having a quickly-variable focal length. Still other embodiments relate to various features of a laser-based multi-axis machine tool that can facilitate efficient delivery of laser energy to a scan head, that can address thermomechanical issues that may arise during workpiece processing, etc. Another embodiment relates to techniques for minimizing or preventing undesired accumulation of particulate matter on workpiece surfaces during processing. A number of other embodiments and arrangements are also detailed.
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5.发明授权公开(公告)号：US11077526B2
公开(公告)日：2021-08-03
申请号：US15750140
申请日：2016-09-08
发明人： Jan Kleinert , Zhibin Lin , Hisashi Matsumoto
IPC分类号： B23K26/08 , B23K26/382 , B23K26/082 , B23K26/0622 , B23K26/70 , B23K103/00
摘要： Apparatus and techniques for laser-processing workpieces can be improved, and new functionalities can be provided. Some embodiments discussed relate to processing of workpieces in a manner resulting in enhanced accuracy, throughput, etc. Other embodiments relate to realtime Z-height measurement and, when suitable, compensation for certain Z-height deviations. Still other embodiments relate to modulation of scan patterns, beam characteristics, etc., to facilitate feature formation, avoid undesirable heat accumulation, or otherwise enhance processing throughput. A great number of other embodiments and arrangements are also detailed.
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公开(公告)号：US20210107091A1
公开(公告)日：2021-04-15
申请号：US16464551
申请日：2017-12-28
发明人： Patrick Riechel
IPC分类号： B23K26/082 , B23K26/00 , B23K26/06 , B23K26/08 , B23K26/0622
摘要： Methods and apparatus for extending the lifetime of optical components are disclosed. A beam of laser energy directed along a beam path that intersects a scan lens, through which it can be transmitted. The beam path can be deflected within a scan region of the scan lens to process a workpiece with the laser energy transmitted by the scan lens. The scan region can be shifted to a different location within the scan lens, e.g., to delay or avoid accumulation of laser-induced damage within the scan lens, while processing a workpiece.
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公开(公告)号：US10357850B2
公开(公告)日：2019-07-23
申请号：US14033368
申请日：2013-09-20
发明人： Haibin Zhang , Glenn Simenson
IPC分类号： B23K26/36 , B23K26/53 , B23K26/352 , B23K26/00 , B23K26/40 , B23K26/382 , B23K26/359 , B23K103/00 , B23K103/04 , B23K103/08 , B23K103/10 , B23K103/14
摘要： The invention is method, and an apparatus for performing the method having the steps of providing a workpiece, generating a plurality of free electrons at a region of the exterior surface, and machining a portion of the workpiece adjoining the first region by directing laser energy onto the workpiece.
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公开(公告)号：US10213871B2
公开(公告)日：2019-02-26
申请号：US14059029
申请日：2013-10-21
发明人： Jan Kleinert , Robert Reichenbach , Mark Unrath , Hisashi Matsumoto , Jefferey Howerton , Mehmet E. Alpay , Andy Moore
IPC分类号： B23K26/00 , B23K26/02 , B23K26/082 , B23K26/352
摘要： The invention is a method and an apparatus for marking an article and the article thus marked. It includes providing the article. Generating a plurality of groups of laser pulses. At least one of the plurality of groups is generated by modulating a beam of laser pulses to form a plurality of beamlets. Each, of the plurality of beamlets, include at least one laser pulse. It also includes directing the plurality of groups of laser pulses onto the article such that laser pulses within the at least one of the plurality of groups impinge upon the article at spot areas that do not overlap one another, wherein laser pulses within the plurality of groups are configured to produce a visible mark on the article.
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9.发明授权公开(公告)号：US09981357B2
公开(公告)日：2018-05-29
申请号：US15188496
申请日：2016-06-21
发明人： Guang Lu , Mehmet E. Alpay , Mike Tyler , Qian Xu , Jan Kleinert , Zhibin Lin , James D. Brookhyser , Ho Wai Lo , Kurt M. Eaton
IPC分类号： G06F19/00 , G05B19/18 , B23Q15/14 , G05B19/402
CPC分类号： B23Q15/14 , G05B19/402 , G05B2219/34015 , G05B2219/50218
摘要： One embodiment of the present invention can be characterized as a method for controlling a multi-axis machine tool that includes obtaining a preliminary rotary actuator command (wherein the rotary actuator command has frequency content exceeding a bandwidth of a rotary actuator), generating a processed rotary actuator command based, at least in part, on the preliminary rotary actuator command, the processed rotary actuator command having frequency content within a bandwidth of the rotary actuator and generating a first linear actuator command and a second linear actuator command based, at least in part, on the processed rotary actuator command. The processed rotary actuator command can be output to the rotary actuator, the first linear actuator command can be output to a first linear actuator and the second linear actuator command can be output to a second linear actuator.
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公开(公告)号：US09776277B2
公开(公告)日：2017-10-03
申请号：US14214649
申请日：2014-03-14
发明人： Jan Kleinert
IPC分类号： B23K26/06 , B23K26/03 , B23K26/067 , B23K26/035 , H01S3/10 , H01S3/067 , H01S3/00
CPC分类号： B23K26/03 , B23K26/035 , B23K26/0676 , H01S3/005 , H01S3/0071 , H01S3/06737 , H01S3/06741 , H01S3/06754 , H01S3/1003 , H01S3/10053 , Y10T29/49165
摘要： An apparatus includes a splitter configured to split a laser beam into a plurality of beamlets, a phase modulator array optically coupled to the splitter and operative to produce phase differences between the beamlets, phase modulation electronics operably coupled to the phase modulator and configured to control an operation of the phase modulator array, a multicore photonic crystal fiber amplifier, the multicore photonic crystal fiber amplifier configured to amplify the beamlets output by the phase modulator array, thereby producing an amplified laser beam at an output thereof, and a waveguide optically coupled between an output of the phase modulator array and an input of the multicore photonic crystal fiber amplifier.
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