发明名称 Reduced thickness optical pickup device with contact avoiding part for avoiding contact between opening-regulating filter and turning mirror
摘要 An optical pickup device comprising: a tilting mechanism for tilting an objective lens in accordance with tilt of an optical information disc disposed above the objective lens; a wavelength-selecting opening-regulating filter disposed immediately below the objective lens and moving integrally with the objective lens; and a turning mirror for guiding light beams from a light source toward the opening-regulating filter, wherein a stopper for regulating an amount of downward movement of a holder for holding the objective lens and the opening-regulating filter is provided in the vicinity of a plane including the axis of tilting operation of the tilting mechanism and center of the objective lens and at substantially the same height level as that of the opening-regulating filter, and at least one of the opening-regulating filter and the turning mirror has a contact avoiding part for avoiding contact between the opening-regulating filter and the turning mirror.
申请公布号 US7518965(B2) 申请公布日期 2009.04.14
申请号 US20050149778 申请日期 2005.06.09
申请人 SHARP KABUSHIKI KAISHA 发明人 KATAOKA MAKOTO
分类号 G11B7/00;G11B7/095;G11B7/09;G11B7/12;G11B7/135 主分类号 G11B7/00
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