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发明名称
光学拾取及光学碟片装置
摘要
本发明提供一种光学拾取,其包括至少一发射一雷射束之雷射光源、一包括用于使由该雷射光源发射且随即作为扩散光入射之光束准直之复数个透镜的准直透镜系统及一接物镜。穿过该准直透镜系统之雷射束入射至该接物镜上。该准直透镜系统包括一经固持以可在该雷射束之一光轴方向上移动的第一透镜单元及一固定第二透镜单元。
申请公布号
TW200623091
申请公布日期
2006.07.01
申请号
TW094129989
申请日期
2005.08.31
申请人
新力股份有限公司
发明人
濑尾胜弘;加藤义明;冈本好喜;米泽健
分类号
G11B7/125;G11B7/135
主分类号
G11B7/125
代理机构
代理人
陈长文
主权项
地址
日本
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