发明名称 OPTICAL PICKUP DEVICE AND OPTICAL DISK DRIVE
摘要 <P>PROBLEM TO BE SOLVED: To obtain an optical pickup device which can avoid dust from attaching to an objective lens and an adhesive for fixing the objective lens to a lens holder, and can remove the dust during the normal operation of recording and reproducing even if the dust is attached. <P>SOLUTION: In the optical pickup device 10 in which the objective lens 11a is mounted on a box 12 via the cylindrical lens holder 11b, an opening 11d is formed for making the inside communicate with the outside of the box 12 on a cylindrical wall of the lens holder 11b nearer to an optical disk 1 than the objective lens 11a. <P>COPYRIGHT: (C)2011,JPO&INPIT
申请公布号 JP2010287282(A) 申请公布日期 2010.12.24
申请号 JP20090140393 申请日期 2009.06.11
申请人 SHARP CORP 发明人 SAKAMOTO NORIAKI
分类号 G11B7/12 主分类号 G11B7/12
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