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    Optical lens
    4.
    发明授权
    Optical lens 有权

    公开(公告)号：US09841585B2

    公开(公告)日：2017-12-12

    申请号：US15324049

    申请日：2014-08-28

    Applicant: HAN'S LASER TECHNOLOGY INDUSTRY GROUP CO., LTD.

    Inventor： Jiayang Li ,  Chaoming Zhou ,  Bo Sun ,  Yunfeng Gao

    IPC: G02B13/18 ,  G02B3/02 ,  G02B9/12 ,  G02B3/08 ,  G02B9/34 ,  B23K26/06

    CPC classification number: G02B13/18 ,  B23K26/0617 ,  B23K26/0648 ,  G02B3/08 ,  G02B9/12 ,  G02B9/34 ,  G02B13/02 ,  G02B27/0025

    Abstract: An optical lens comprising a first lens (L1), a second lens (L2), and a third lens (L3) that are sequentially arranged on a common optical axis in the transmission direction of an incident light. Both the first lens and the second lens are positive plano-convex lenses. The third lens is a negative meniscus lens. The first lens comprises a first curved surface (S1) and a second curved surface (S2). The second lens comprises a third curved surface (S3) and a fourth curved surface (S4). The third lens comprises a fifth curved surface (S5) and a sixth curved surface (S6). The two curved surfaces of each lens respectively are the light incident surface and the light exit surface of the lens. The first to the sixth curved surfaces are sequentially arranged in the transmission direction of the incident light. The first curved surface and the third curved surface protrude in reverse to the transmission direction of the incident light. The fifth curved surface and the sixth curved surface protrude in the transmission direction of the incident light. The third curved surface is constituted by connecting sequentially and directly multiple arced surfaces (Φ1, Φ2, Φ3, Φ4, and Φ5) having different focuses and all of the focuses (f1, f2, f3, f4, and f5) of these arced surfaces are located on the optical axis. The optical lens is applicable in processing deep and fine holes or engraving deep and fine lines.

    LASER MACHINING DEVICE AND LASER MACHINING METHOD
    7.
    发明申请
    LASER MACHINING DEVICE AND LASER MACHINING METHOD 有权
    激光加工设备和激光加工方法

    公开(公告)号：US20160045979A1

    公开(公告)日：2016-02-18

    申请号：US14778673

    申请日：2014-03-13

    Applicant: HAMAMATSU PHOTONICS K.K.

    Inventor： Daisuke KAWAGUCHI ,  Tsubasa HIROSE ,  Keisuke ARAKI

    IPC: B23K26/00 ,  B23K26/53 ,  B23K26/06

    CPC classification number: B23K26/0057 ,  B23K26/0617 ,  B23K26/064 ,  B23K26/0643 ,  B23K26/0648 ,  B23K26/0665 ,  B23K26/0736 ,  B23K26/40 ,  B23K26/53 ,  B23K2103/50 ,  B28D5/00 ,  C03B33/0222 ,  Y02P40/57

    Abstract: A laser processing device comprises a laser light source emitting the laser light, a spatial light modulator modulating the laser light emitted from the laser light source, and a converging optical system converging the laser light modulated by the spatial light modulator at the object. A plurality of rows of modified regions include at least an entrance-surface-side modified region located on the laser light entrance surface side, an opposite-surface-side modified region located on the opposite surface side of the laser light entrance surface, and a middle modified region located between the entrance-surface-side modified region and opposite-surface-side modified region. When forming the middle modified region, the spatial light modulator displays an axicon lens pattern as a modulation pattern so as to form converging points at a plurality of positions juxtaposed close to each other along a laser light irradiation direction. When forming the entrance-surface-side modified region and opposite-surface-side modified region, the spatial light modulator is restrained from displaying the axicon lens pattern as the modulation pattern.

    Abstract translation: 激光加工装置包括发射激光的激光光源，调制从激光光源发出的激光的空间光调制器，以及将由空间光调制器调制的激光会聚在物体处的会聚光学系统。 多列修改区域至少包括位于激光入射面侧的入射面侧改质区域，位于激光入射面的相对面侧的相对面侧改质区域，以及 位于入口表面侧改质区域和反面侧改性区域之间的中间改质区域。 当形成中间改变区域时，空间光调制器将旋转透镜图案显示为调制图案，以便沿着激光照射方向彼此靠近并置的多个位置处形成会聚点。 当形成入射表面侧改质区域和反面侧改性区域时，抑制空间光调制器显示作为调制图案的旋转透镜图案。

    LASER PROCESSING APPARATUS AND LASER PROCESSING METHOD
    10.
    发明申请
    LASER PROCESSING APPARATUS AND LASER PROCESSING METHOD 有权
    激光加工设备和激光加工方法

    公开(公告)号：US20140076870A1

    公开(公告)日：2014-03-20

    申请号：US14113120

    申请日：2012-09-26

    Applicant: NIPPON STEEL & SUMMITOMO METLA CORPORATION

    Inventor： Koji Hirano ,  Hirofumi Imai

    IPC: B23K26/06

    CPC classification number: B23K26/0608 ,  B23K26/0604 ,  B23K26/0617 ,  B23K26/0648 ,  B23K26/0734 ,  B23K26/38

    Abstract: [Object]To provide a laser processing apparatus and a laser processing method which are capable of reducing roughness of a cut surface in laser cutting using laser beams transmitted through optical fibers.[Solution]A laser processing apparatus according to the present invention includes at least one laser oscillator configured to emit laser beams, a plurality of optical fibers configured to transmit the emitted laser beams, and at least one optical element configured to focus the laser beams emitted from the optical fibers and irradiate a surface of a workpiece with the focused laser beams. At output ends of the optical fibers, the output ends of the plurality of optical fibers are placed in one or a plurality of ring shapes. Laser beams transmitted through the plurality of optical fibers placed on at least an outermost ring of the ring shapes each have a linear polarization, and polarization directions of the linearly polarized laser beams emitted from the output ends of the plurality of optical fibers are arranged radially around a center of the outermost ring.

    Abstract translation: 本发明提供一种激光加工装置和激光加工方法，该激光加工装置和激光加工方法能够通过使用通过光纤传输的激光束来减少激光切割中的切割面的粗糙度。 [解决方案]根据本发明的激光加工装置包括配置成发射激光束的至少一个激光振荡器，被配置为透射发射的激光束的多个光纤，以及被配置为聚焦发射的激光束的至少一个光学元件 并从聚光激光照射工件的表面。 在光纤的输出端，多根光纤的输出端呈一个或多个环状。 通过放置在至少最外圈的多个光纤中的多个光纤透射的激光束各自具有线性偏振，并且从多根光纤的输出端发射的线偏振激光束的偏振方向径向地布置 最外环的中心。

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