发明名称 |
METHOD AND APPARATUS FOR LASER MARKING, AND OBJECT WITH MARKS |
摘要 |
<p>A laser beam is radiated from a laser source. The laser beam radiated from the laser source is converged at a converging point inside of a work member to form cracks at the converging point and in its nearby area, by making a cross section of the laser beam at the converging point have a shape long in a first direction perpendicular to an optical axis of the laser beam. Markers easy to increase contrast can be formed in the work member. <IMAGE></p> |
申请公布号 |
EP1080821(A1) |
申请公布日期 |
2001.03.07 |
申请号 |
EP19990972570 |
申请日期 |
1999.11.26 |
申请人 |
SUMITOMO HEAVY INDUSTRIES, LTD. |
发明人 |
HAYASHI, KENICHI |
分类号 |
B23K26/00;B23K26/04;B23K26/06;B23K26/073;B41M5/24;B41M5/26;(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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