发明名称 |
Apparatus for driving an objective lens |
摘要 |
An apparatus for driving an objective lens of the present invention includes: a base which is moved along an optical disk; an objective lens disposed so as to be opposed to the optical disk and having an optical axis in a vertical direction with respect to the optical disk, for optically recording information onto the optical disk or optically reproducing information from the optical disk; a holder portion for holding the objective lens; a plurality of elastic arms extending between the base and the holder portion in a tangent direction of the optical disk, for supporting the holder portion movably with respect to the base; and a driving portion for generating an electromagnetic force for moving the holder portion with respect to the base, wherein the elastic arms are disposed away from each other in a vertical direction, the base includes each movable portion for supporting one end of each of the elastic arms, and each of the movable portions is supported at each position in a vertical direction outside of one end of each of the elastic arms, so as to be elastically pivotable around each axis in a radius direction of the optical disk.
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申请公布号 |
US2003174596(A1) |
申请公布日期 |
2003.09.18 |
申请号 |
US20030390129 |
申请日期 |
2003.03.17 |
申请人 |
WAKABAYASHI KANJI;FUJII HITOSHI;YAMAMOTO HIROSHI;MOHRI MASANARI;KOJIMA TAKAYUKI;KUBOTA DAISABURO;URAIRI KENICHIRO |
发明人 |
WAKABAYASHI KANJI;FUJII HITOSHI;YAMAMOTO HIROSHI;MOHRI MASANARI;KOJIMA TAKAYUKI;KUBOTA DAISABURO;URAIRI KENICHIRO |
分类号 |
G11B7/08;G11B7/09;(IPC1-7):G11B7/095 |
主分类号 |
G11B7/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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