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    Methods and Systems for Decreasing the Effective Pulse Repetition of a Laser
    2.
    发明申请
    Methods and Systems for Decreasing the Effective Pulse Repetition of a Laser 有权
    减少激光有效脉冲重复的方法和系统

    公开(公告)号：US20070228024A1

    公开(公告)日：2007-10-04

    申请号：US11758497

    申请日：2007-06-05

    Applicant: Kelly Bruland ,  Steve Swaringen ,  Steve Stone ,  Keith Grant

    Inventor： Kelly Bruland ,  Steve Swaringen ,  Steve Stone ,  Keith Grant

    IPC: B23K26/38

    CPC classification number: B23K26/38 ,  B23K26/04 ,  B23K26/0622 ,  B23K26/0853 ,  B23K2101/40

    Abstract: A method selectively processes structures on a workpiece with laser pulses. The structures are arranged in a linear pattern having approximately equal pitch. The pulses propagate along a laser beam propagation path terminating at a laser beam spot on the workpiece. The method fires a first processing pulse when the spot coincides with a first structure location, selectively blocks or clears the propagation path during the first pulse, moves the workpiece and the spot relative to one another such that the spot moves toward a second structure location at a speed less than the product of the laser's PRF and the pitch, fires a dummy pulse before the spot reaches the second structure location, blocks the propagation path during the dummy laser pulse, fires another processing pulse when the beam spot coincides with the second structure location, and selectively blocks or clears the propagation path during the second processing pulse.

    Abstract translation: 一种方法用激光脉冲选择性地处理工件上的结构。 这些结构被布置成具有大致相等间距的线性图案。 脉冲沿着终止于工件上的激光束点的激光束传播路径传播。 当该点与第一结构位置一致时，该方法触发第一处理脉冲，在第一脉冲期间选择性地阻挡或清除传播路径，使工件和光点相对于彼此移动，使得光点向第二结构位置移动 小于激光器PRF和音调的乘积的速度，在点到达第二结构位置之前触发虚拟脉冲，在伪激光脉冲期间阻挡传播路径，当光束点与第二结构重合时触发另一个处理脉冲 并且在第二处理脉冲期间选择性地阻挡或清除传播路径。

    High energy pulse suppression method
    3.
    发明授权
    High energy pulse suppression method 有权
    高能脉冲抑制方法

    公开(公告)号：US08081668B2

    公开(公告)日：2011-12-20

    申请号：US12605989

    申请日：2009-10-26

    Applicant: Keith Grant ,  Steve Stone ,  Brady Nilsen

    Inventor： Keith Grant ,  Steve Stone ,  Brady Nilsen

    IPC: H01S3/10

    CPC classification number: H01S3/117 ,  B23K26/0622 ,  B23K26/0624 ,  B23K26/0853 ,  B23K26/40 ,  B23K2101/36 ,  B23K2103/50 ,  H01S3/10 ,  H01S3/10038 ,  H01S3/10069 ,  H01S3/1024 ,  H01S3/1611 ,  H01S3/1673 ,  H05K3/0026 ,  H05K3/0038

    Abstract: A laser processes a workpiece with laser pulses delivered at random time intervals and at substantially constant energy levels by characterizing the laser cavity discharge behavior and utilizing that information for adjusting dummy pulse time periods to compensate for the energy errors. Dummy pulses are laser pulses that are blocked from reaching a workpiece. A second way for providing constant pulse energies employs an AOM for varying amounts of laser energy passed to the workpiece. A third way of providing constant pulse energies entails extending the pulse period of selected pulses to allow additional laser cavity charging time whenever a dummy pulse is initiated.

    Abstract translation: 激光通过表征激光腔排放行为并利用该信息调整虚拟脉冲时间周期来补偿能量误差，以随机时间间隔和基本上恒定的能量级别递送的激光脉冲来处理工件。 虚拟脉冲是被阻止到达工件的激光脉冲。 提供恒定脉冲能量的第二种方法使用AOM来改变传递给工件的激光能量。 提供恒定脉冲能量的第三种方式需要延长所选脉冲的脉冲周期，以便每当启动虚拟脉冲时，允许额外的激光腔充电时间。

    High energy pulse suppression method
    4.
    发明授权
    High energy pulse suppression method 有权
    高能脉冲抑制方法

    公开(公告)号：US07616669B2

    公开(公告)日：2009-11-10

    申请号：US10997586

    申请日：2004-11-24

    Applicant: Keith Grant ,  Steve Stone ,  Brady Nilsen

    Inventor： Keith Grant ,  Steve Stone ,  Brady Nilsen

    IPC: H01S3/11

    CPC classification number: H01S3/117 ,  B23K26/0622 ,  B23K26/0624 ,  B23K26/0853 ,  B23K26/40 ,  B23K2101/36 ,  B23K2103/50 ,  H01S3/10 ,  H01S3/10038 ,  H01S3/10069 ,  H01S3/1024 ,  H01S3/1611 ,  H01S3/1673 ,  H05K3/0026 ,  H05K3/0038

    Abstract: A laser processes a workpiece with laser pulses delivered at random time intervals and at substantially constant energy levels by characterizing the laser cavity discharge behavior and utilizing that information for adjusting dummy pulse time periods to compensate for the energy errors. Dummy pulses are laser pulses that are blocked from reaching a workpiece. A second way for providing constant pulse energies employs an AOM for varying amounts of laser energy passed to the workpiece. A third way of providing constant pulse energies entails extending the pulse period of selected pulses to allow additional laser cavity charging time whenever a dummy pulse is initiated.

    Abstract translation: 激光通过表征激光腔排放行为并利用该信息调整虚拟脉冲时间周期来补偿能量误差，以随机时间间隔和基本上恒定的能量级别递送的激光脉冲来处理工件。 虚拟脉冲是被阻止到达工件的激光脉冲。 提供恒定脉冲能量的第二种方法使用AOM来改变传递给工件的激光能量。 提供恒定脉冲能量的第三种方式需要延长所选脉冲的脉冲周期，以便每当启动虚拟脉冲时，允许额外的激光腔充电时间。

    Fence with Integrated Guard
    7.
    发明公开
    Fence with Integrated Guard 审中-公开

    公开(公告)号：US20230212874A1

    公开(公告)日：2023-07-06

    申请号：US18119539

    申请日：2023-03-09

    Applicant: Keith Grant

    Inventor： Keith Grant

    IPC: E04H17/06 ,  E04H17/04

    CPC classification number: E04H17/063 ,  E04H17/05

    Abstract: A fence with an integrated guard includes a fence having a bottom end and a guard attached to the lower end of the fence. The guard can wrap around the bottom end of the fence. Alternatively, the guard can extend downwardly from the fence. Still alternatively, the guard can extend between adjacent horizontal members of the fence.

    On-the fly laser beam path dithering for enhancing throughput
    8.
    发明授权
    On-the fly laser beam path dithering for enhancing throughput 有权
    用于增强吞吐量的飞行激光束路径抖动

    公开(公告)号：US08497450B2

    公开(公告)日：2013-07-30

    申请号：US11925562

    申请日：2007-10-26

    Applicant: Kelly Bruland ,  Mark Unrath ,  Stephen Swaringen ,  Ho Wai Lo ,  Clint Vandergiessen ,  Keith Grant

    Inventor： Kelly Bruland ,  Mark Unrath ,  Stephen Swaringen ,  Ho Wai Lo ,  Clint Vandergiessen ,  Keith Grant

    IPC: B23K26/00 ,  B23K26/06 ,  B23K26/16

    CPC classification number: G02B26/101

    Abstract: A laser-based workpiece processing system includes sensors connected to a sensor controller that converts sensor signals into focused spot motion commands for actuating a beam steering device, such as a two-axis steering mirror. The sensors may include a beam position sensor for correcting errors detected in the optical path, such as thermally-induced beam wandering in response to laser or acousto-optic modulator pointing stability, or optical mount dynamics.

    Abstract translation: 基于激光的工件处理系统包括连接到传感器控制器的传感器，传感器控制器将传感器信号转换成聚焦点运动命令，用于致动诸如双轴转向镜的光束转向装置。 传感器可以包括用于校正在光路中检测到的误差的光束位置传感器，例如响应于激光或声光调制器指向稳定性的热感应波束漂移或光学安装动态。

    HIGH ENERGY PULSE SUPPRESSION METHOD
    10.
    发明申请
    HIGH ENERGY PULSE SUPPRESSION METHOD 有权
    高能量脉冲抑制方法

    公开(公告)号：US20100046561A1

    公开(公告)日：2010-02-25

    申请号：US12605989

    申请日：2009-10-26

    Applicant: Keith Grant ,  Steve Stone ,  Brady Nilsen

    Inventor： Keith Grant ,  Steve Stone ,  Brady Nilsen

    IPC: H01S3/11 ,  H01S3/10

    CPC classification number: H01S3/117 ,  B23K26/0622 ,  B23K26/0624 ,  B23K26/0853 ,  B23K26/40 ,  B23K2101/36 ,  B23K2103/50 ,  H01S3/10 ,  H01S3/10038 ,  H01S3/10069 ,  H01S3/1024 ,  H01S3/1611 ,  H01S3/1673 ,  H05K3/0026 ,  H05K3/0038

    Abstract: A laser processes a workpiece with laser pulses delivered at random time intervals and at substantially constant energy levels by characterizing the laser cavity discharge behavior and utilizing that information for adjusting dummy pulse time periods to compensate for the energy errors. Dummy pulses are laser pulses that are blocked from reaching a workpiece. A second way for providing constant pulse energies employs an AOM for varying amounts of laser energy passed to the workpiece. A third way of providing constant pulse energies entails extending the pulse period of selected pulses to allow additional laser cavity charging time whenever a dummy pulse is initiated.

    Abstract translation: 激光通过表征激光腔排放行为并利用该信息调整虚拟脉冲时间周期来补偿能量误差，以随机时间间隔和基本上恒定的能量级别递送的激光脉冲来处理工件。 虚拟脉冲是被阻止到达工件的激光脉冲。 提供恒定脉冲能量的第二种方法使用AOM来改变传递给工件的激光能量。 提供恒定脉冲能量的第三种方式需要延长所选脉冲的脉冲周期，以便每当启动虚拟脉冲时，允许额外的激光腔充电时间。

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