发明名称 |
Laser marking system and method using controlled pulse width of Q-switch |
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.
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申请公布号 |
US5719372(A) |
申请公布日期 |
1998.02.17 |
申请号 |
US19950558780 |
申请日期 |
1995.11.16 |
申请人 |
NEC CORPORATION |
发明人 |
TOGARI, SATOSHI;BABA, YOSHIMITSU |
分类号 |
B23K26/00;B23K26/06;H01S3/11;(IPC1-7):B23K26/00 |
主分类号 |
B23K26/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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