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发明名称
组合透镜
摘要
本发明提供一种组合透镜,该组合透镜包括第一透镜及第二透镜。该第一透镜具有一通孔,该第二透镜之周边与所述通孔相适配。该第一透镜和该第二透镜对同时入射的光线形成两个不同的焦点。采用上述组合透镜作为光学读/写装置之光学头之物镜,可减少物镜移动之次数从而提高光学头之寿命。且该组合透镜具有结构简单,制作方便等优点。
申请公布号
TWI369678
申请公布日期
2012.08.01
申请号
TW095142686
申请日期
2006.11.17
申请人
鸿海精密工业股份有限公司 新北市土城区自由街2号
发明人
李欣和
分类号
G11B7/135;G02B3/10;G02B3/12
主分类号
G11B7/135
代理机构
代理人
主权项
地址
新北市土城区自由街2号
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