发明名称 OPTICAL ELEMENT FOR OPTICAL PICKUP, AND OPTICAL PICKUP USING THE SAME
摘要 <P>PROBLEM TO BE SOLVED: To provide an optical element for an optical pickup which can be easily and highly accurately assembled and assures favorable optical characteristics, and an optical pickup using the same. <P>SOLUTION: The optical element 10 for the optical pickup has an objective lens 1 for converging luminous flux, an aberration correction means 2 for correcting aberration, and a holder 6 for fixing the relative position of the objective lens 1 and the aberration correction means 2. The aberration correction means 2 includes an aberration correction element which does not completely cover a hole 14 for the passing of the luminous flux formed in the holder 6. <P>COPYRIGHT: (C)2006,JPO&NCIPI
申请公布号 JP2006053993(A) 申请公布日期 2006.02.23
申请号 JP20040234554 申请日期 2004.08.11
申请人 OLYMPUS CORP 发明人 EZAWA HIROSHI
分类号 G11B7/135;G11B7/08 主分类号 G11B7/135
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