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发明名称
F-theta lens and micro-hole drilling apparatus
摘要
<p>본 발명은, 광원측으로부터 순서대로, 부의 굴절력을 가지는 제1 렌즈와, 정의 굴절력을 가지는 제2 렌즈를 구비하며, 다음의 조건식을 만족하는 에프시타 렌즈를 제공한다.<식>여기서, f는 전체 초점거리[mm], BFL은 후방 초점거리[mm] 나타낸다.</p>
申请公布号
KR101568393(B1)
申请公布日期
2015.11.11
申请号
KR20120075746
申请日期
2012.07.11
申请人
发明人
分类号
B23K26/38;G02B13/00;G02B13/18;G02B13/22
主分类号
B23K26/38
代理机构
代理人
主权项
地址
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