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发明名称
光碟装置与收敛位置校正方法
摘要
本发明揭示一种光碟装置,其照射一光束至一光碟,该光碟包括用于记录资讯的一记录层与具备一用于在该记录层上识别资讯之一记录位置之磁轨的一定位层,该光碟装置包括:物镜,其收敛一预定定位光束以调整该光束至在该定位层上的一所需磁轨并收敛一资讯光束,其与该记录层上的该定位光束共用一光轴;移动区段,其在一实质上正交于该磁轨之循轨方向上移动该物镜以使该定位光束之一焦点跟随所需磁轨;一侦测区段,其侦测该物镜向该循轨方向的一移动数量;及校正区段,其依据该移动数量来校正该资讯光束之一收敛位置。
申请公布号
TW200910338
申请公布日期
2009.03.01
申请号
TW097121593
申请日期
2008.06.10
申请人
新力股份有限公司
发明人
齐藤公博;宫本浩孝
分类号
G11B7/09(2006.01)
主分类号
G11B7/09(2006.01)
代理机构
代理人
陈长文
主权项
地址
日本
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