发明授权
- 专利标题: Laser marking method and system
- 专利标题(中): 激光打标方法及系统
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申请号: US13236949申请日: 2011-09-20
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公开(公告)号: US09290008B1公开(公告)日: 2016-03-22
- 发明人: Xiaojun Li , Kirk Price , Jason Farmer , Ethan McGrath
- 申请人: Xiaojun Li , Kirk Price , Jason Farmer , Ethan McGrath
- 申请人地址: US WA Vancouver
- 专利权人: nLIGHT Photonics Corporation
- 当前专利权人: nLIGHT Photonics Corporation
- 当前专利权人地址: US WA Vancouver
- 代理机构: Klarquist Sparkman, LLP
- 主分类号: B41J2/44
- IPC分类号: B41J2/44 ; B41M5/26 ; C25D11/18
摘要:
A laser marking method and system, and laser marked object are disclosed. The method includes directing a pulsed laser beam towards an object such that an interface between an oxidized layer and non-oxidized substrate is in a mark zone of the pulsed laser beam, and scanning the pulsed laser beam across the object in a predetermined pattern to create a mark having an L value of less than 40 and a surface roughness that is substantially unchanged compared to adjacent unmarked areas. The system includes a fiber laser generating amplified pulses that are directed towards a galvo-scanner and focusing optic, while the object includes an oxidized surface layer, an underlying non-oxidized substrate, and a mark having an L value of less than 40 with substantially unchanged roughness features.
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