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    Method and apparatus for marking patterns by a scanning laser beam, a mask applied to the same apparatus
    1.
    发明授权
    Method and apparatus for marking patterns by a scanning laser beam, a mask applied to the same apparatus 失效
    用于通过扫描激光束标记图案的方法和装置，将掩模应用于同一装置

    公开(公告)号：US6097420A

    公开(公告)日：2000-08-01

    申请号：US563487

    申请日：1995-11-28

    申请人： Yoshimitsu Baba ,  Satoshi Togari

    发明人： Yoshimitsu Baba ,  Satoshi Togari

    IPC分类号： B23K26/00 ,  B23K26/06 ,  B23K26/073 ,  B23K26/08 ,  G02B27/09 ,  G06K1/12 ,  G02B27/00

    CPC分类号： G02B27/0927 ,  B23K26/066 ,  G02B27/09 ,  G02B27/0988 ,  G06K1/126

    摘要： Energy distribution at a section of a laser beam is leveled by causing the laser beam, emitted by a continuous wave Q-switch pulse from a laser oscillator having an acousto-optic Q-switch element, to pass through a mask having a mask pattern. The laser beam having passed the mask is reflected by a pair of reflection mirrors provided on a pair of galvanometers. The reflected laser beam passes through an objective lens and is focused on a processing object. A desired character or sign is marked on the processing object through a scanning with the laser beam focused on the processing object by driving a pair of galvanometers.

    摘要翻译： 通过使来自具有声光Q开关元件的激光振荡器的连续波Q开关脉冲发射的激光束通过具有掩模图案的掩模来激发激光束的一部分的能量分布。 已经通过掩模的激光束被设置在一对电流计上的一对反射镜反射。 反射的激光束通过物镜并聚焦在处理对象上。 通过驱动一对电流计，通过利用聚焦在处理对象上的激光束的扫描，在处理对象上标记所需的字符或符号。

    Laser marking system and method using controlled pulse width of Q-switch
    2.
    发明授权
    Laser marking system and method using controlled pulse width of Q-switch 失效
    激光打标系统和方法采用Q控制脉宽调制

    公开(公告)号：US5719372A

    公开(公告)日：1998-02-17

    申请号：US558780

    申请日：1995-11-16

    申请人： Satoshi Togari ,  Yoshimitsu Baba

    发明人： Satoshi Togari ,  Yoshimitsu Baba

    IPC分类号： B23K26/00 ,  B23K26/06 ,  H01S3/11

    CPC分类号： B23K26/0622

    摘要： A laser marking system comprises a continuous-wave (CW) pumped Q-switch pulse laser and a laser controller. The Q-switch element switches on and off according to a repetition control signal received from the laser controller. The repetition control signal comprises an emission period in a repetition rate. The CW-pumped Q-switch pulse laser emits the laser beam through the Q-switch element during the emission period. The emission period or duty factor of the repetition control signal is adjusted such that the CW-pumped Q-switch pulse laser emits a pulse laser beam comprising a plurality of emission pulses during the emission period. The pulse laser beam is used to generate a scanning pulse laser beam which is focused on the workpiece to be marked in a desired pattern.

    摘要翻译： 激光打标系统包括连续波（CW）泵浦Q开关脉冲激光器和激光控制器。 Q开关元件根据从激光控制器接收的重复控制信号来接通和断开。 重复控制信号包括重复率的发射周期。 CW泵浦Q开关脉冲激光器在发射期间通过Q开关元件发射激光束。 调整重复控制信号的发射周期或占空比，使得CW发射的Q开关脉冲激光器在发射周期期间发射包括多个发射脉冲的脉冲激光束。 脉冲激光束用于产生扫描脉冲激光束，该扫描脉冲激光束聚焦在要被标记的所需工件上。