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    Laser ablation with reduced visual effects
    12.
    发明授权
    Laser ablation with reduced visual effects 有权

    公开(公告)号：US11130195B2

    公开(公告)日：2021-09-28

    申请号：US15329931

    申请日：2015-07-29

    申请人： Gentex Corporation

    发明人： Kurtis L. Geerlings ,  David J. Cammenga ,  Donald L. Bareman ,  Henry A. Luten

    IPC分类号： B23K26/082 ,  B23K26/361 ,  G02B5/08 ,  B23K26/0622 ,  B23K26/14 ,  B23K26/362 ,  B23K26/402 ,  G02B27/00 ,  B23K103/08 ,  B23K103/16 ,  G02B5/18

    摘要： A laser ablation process can be configured to reduce the appearance of or eliminate a potentially objectionable diffraction effect that can occur when a workpiece or product that has been subjected to the ablation process interacts with light. The diffraction effect can be reduced by introducing irregularity into the arrangement of overlapping laser spots during the process. Other process parameters may be modified to reduce the diffraction effect, such as laser scan speed, laser pulse frequency, the position of the focal plane of the laser, the configuration of raster lines, or the energy profile of the laser beam, for example. The process modifications and configurations are particularly useful with products including an ablated surface that is intended to reflect light or to allow light to pass therethrough as part of its function.

    Reducing diffraction effects on an ablated surface
    13.
    发明授权
    Reducing diffraction effects on an ablated surface 有权

    公开(公告)号：US11126056B2

    公开(公告)日：2021-09-21

    申请号：US16405015

    申请日：2019-05-07

    申请人： Gentex Corporation

    发明人： Henry A. Luten ,  Donald L. Bareman ,  Thomas J. Scott ,  Kurtis L. Geerlings ,  William L. Tonar ,  Niels A. Olesen

    IPC分类号： G02F1/153 ,  B23K26/361 ,  B23K26/04 ,  B23K26/57 ,  B23K26/352 ,  B23K26/362

    摘要： A method for removing a material from a surface of a substrate includes impinging a laser beam on the material during a first sweep to remove the material from the surface along a first line and impinging the laser beam on the material during a second sweep to remove the material from the surface along a second line adjacent to the first line. The first line includes first artifacts that form a first portion of an array of artifacts on the surface. The second line includes second artifacts that form a second portion of the array of artifacts on the surface. A first laser pulse of the laser beam corresponding with the second sweep is synchronized with a start of the second sweep when transitioning between the first line and the second line such that the start of the second sweep coincides with the first laser pulse.

    Laser-induced channels in multi-layer materials
    14.
    发明授权
    Laser-induced channels in multi-layer materials 有权

    公开(公告)号：US09873167B1

    公开(公告)日：2018-01-23

    申请号：US14580157

    申请日：2014-12-22

    申请人： Gentex Corporation

    发明人： Kurtis L. Geerlings ,  Donald L. Bareman ,  William L. Tonar

    IPC分类号： B23K26/00 ,  B23K26/36 ,  B23K26/40

    CPC分类号： B23K26/55 ,  B23K26/009 ,  B23K26/367 ,  B23K26/4095

    摘要： A laser system comprising a laser that produces a pulsed laser beam is configured to form a laser-induced channel in a multi-layer substrate including first and second material layers. The material layers may have different refractive indices. The laser-induced channel includes a uniform distribution of self-focus damage volumes through at least a portion of the thickness of one or both of the material layers. One of the material layers may be partially transparent or non-transparent. An optical assembly of the laser system can be configured to produce uniformly distributed self-focus damage volumes at an effective focal region corresponding to the substrate thickness. The distribution of damage volumes can be tailored to include areas or peaks of high damage volume density where it is desired to ablate material.

    LASER SYSTEM AND METHOD THEREOF
    16.
    发明申请
    LASER SYSTEM AND METHOD THEREOF 有权
    激光系统及其方法

    公开(公告)号：US20150034616A1

    公开(公告)日：2015-02-05

    申请号：US14452446

    申请日：2014-08-05

    申请人： GENTEX CORPORATION

    发明人： Niels A. Olesen ,  David A. Bender ,  Donald L. Bareman

    IPC分类号： G02B26/10 ,  B23K26/38 ,  B23K26/08

    CPC分类号： B23K26/38 ,  B23K26/0622 ,  B23K26/064 ,  B23K26/0884 ,  B23K26/28 ,  G02B26/105

    摘要： A laser system includes a laser configured to emit pulse bursts and a motion device in optical communication with the laser. The motion device moves a laser beam along a process path on a substrate and is configured to have a natural frequency that is greater than an operating frequency of the laser system. The laser system enables high and constant speed processing along tight radii in the process path, which is useful to form laser induced channels along the process path with equal spacing.

    摘要翻译： 激光系统包括配置为发射脉冲串的激光器和与激光器光学通信的运动装置。 运动装置沿着衬底上的处理路径移动激光束，并且被配置为具有大于激光系统的工作频率的固有频率。 激光系统能够沿着处理路径中的紧密半径实现高速恒定的速度处理，这对沿着处理路径形成具有相等间距的激光感应通道是有用的。

    ELECTRO-OPTIC ASSEMBLY
    18.
    发明公开
    ELECTRO-OPTIC ASSEMBLY 审中-公开

    公开(公告)号：US20230280603A1

    公开(公告)日：2023-09-07

    申请号：US18115824

    申请日：2023-03-01

    申请人： GENTEX CORPORATION

    发明人： Stephen F. Richlich ,  Gerald W. Redwine ,  Donald L. Bareman ,  David J. Cammenga

    IPC分类号： G02F1/00 ,  G02F1/03 ,  B60J7/043

    CPC分类号： G02F1/0018 ,  G02F1/0305 ,  B60J7/043

    摘要： An electro-optic assembly comprises a first substrate and a second substrate. The first and second substrates are disposed in a parallel and spaced apart relationship so as to define a cavity therebetween. A primary seal extends between the first and second substrates. An electro-optic medium is located in the cavity and retained in an inboard direction by the primary seal. A plurality of first spacer elements are coupled to the primary seal. A break wall is located in the inboard direction or an outboard direction from the primary seal. The break wall extends between the first and second substrates and generally along the primary seal. A plurality of second spacer elements are coupled to the break wall. A space is defined between the primary seal and the break wall in the inboard-outboard directions.