发明名称 |
OPTICAL SYSTEM, AND LASER PROCESSING DEVICE |
摘要 |
<p>PROBLEM TO BE SOLVED: To provide an optical system and a laser processing device capable of setting easily energy strength distribution of laser beam on a processed point, so that the energy strength distribution is higher on a peripheral area than on a center area.SOLUTION: An optical system 7 comprises: a collimator lens group 8 emitting laser beam having a parallel flux; an axicon lens 9 which is conical shape and to which the emitted beam from the collimator lens group 8 injects; and a focus lens group 10 condenses the emitted beam from the axicon lens 9. A conical face of the axicon lens 9 locates on the collimator lens group 8 side and a plane face of the axicon lens 9 locates on the focus lens group 10 side.</p> |
申请公布号 |
JP2014094406(A) |
申请公布日期 |
2014.05.22 |
申请号 |
JP20120248423 |
申请日期 |
2012.11.12 |
申请人 |
MITSUBISHI HEAVY IND LTD |
发明人 |
NISHITANI YUSUKE;WATANABE MASANARI |
分类号 |
B23K26/073;B23K26/064;G02B27/09 |
主分类号 |
B23K26/073 |
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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