公开(公告)号：US20080259777A1

公开(公告)日：2008-10-23

申请号：US11570078

申请日：2006-03-15

申请人： Kouretsu Boku ,  Hideki Hayashi ,  Yohichi Saitoh ,  Hideki Aikoh ,  Takao Hayashi ,  Makoto Takashima ,  Tomio Yamamoto ,  Akira Yoshikawa

发明人： Kouretsu Boku ,  Hideki Hayashi ,  Yohichi Saitoh ,  Hideki Aikoh ,  Takao Hayashi ,  Makoto Takashima ,  Tomio Yamamoto ,  Akira Yoshikawa

IPC分类号： G11B7/00

CPC分类号： G11B7/121

摘要： An optical pickup device 11 according to the present invention includes: a light source 1 that emits a light beam; a condensing element 5 for condensing the light beam toward an information storage medium 14; and a protruding member 101, which comes closer to the information storage medium 14 than the condensing element 5 does when the condensing element 5 faces the information storage medium 14. The protruding member 101 is shaped so as to gradually protrude toward the information storage medium 14 in a tangential direction 21 of the information storage medium 14 rotating.

摘要翻译： 根据本发明的光学拾取装置11包括：发射光束的光源1; 用于将光束聚光到信息存储介质14的聚光元件5; 以及当聚光元件5面向信息存储介质14时比聚光元件5靠近信息存储介质14的突出构件101。 突出构件101成形为在信息存储介质14旋转的切线方向21上朝向信息存储介质14逐渐突出。

公开(公告)号：US20090016196A1

公开(公告)日：2009-01-15

申请号：US11909379

申请日：2006-03-20

申请人： Hideki Aikoh ,  Makoto Takashima ,  Takao Hayashi ,  Akira Yoshikawa ,  Tomio Yamamoto ,  Kouretsu Boku

发明人： Hideki Aikoh ,  Makoto Takashima ,  Takao Hayashi ,  Akira Yoshikawa ,  Tomio Yamamoto ,  Kouretsu Boku

IPC分类号： G11B7/00

CPC分类号： G11B33/1446 ,  G11B7/121 ,  G11B17/0282

摘要： An optical disk device of the present application includes: a turntable 30 including plural induction grooves 31a to 31h as concave portions radially extending from vicinity of a center of the turntable 30 and having open portions in an outer periphery of the turntable 30 and plural through-holes 32a to 32h penetrating bottom faces 33a to 33h on the vicinity of the center side of the plural induction grooves 31a to 31h and a top face of the turntable 30; and an outer rotor type spindle motor 35 provided with plural fins 36a to 36h as convex portions on a rotor on a side face thereof. The optical disk device of the present application utilizes an airflow generated by rotation of the rotor of the spindle motor 35 and the turntable 30 in conjunction therewith as a dust removing wind for removing dust attaching to an objective lens side area.

摘要翻译： 本申请的光盘装置包括：转盘30，其具有作为从转盘30的中心附近径向延伸的凹部的多个感应槽31a〜31h，在转台30的外周具有开口部， 在多个感应槽31a〜31h的中心侧附近的底面33a〜33h以及转台30的上表面的贯通孔32a〜32h的孔32a〜 以及外转子型主轴电动机35，在其侧面的转子上设置有作为凸部的多个翅片36a〜36h。 本申请的光盘装置利用由主轴电机35的转子和转盘30的旋转而产生的气流作为除尘附着到物镜侧区域的除尘风。

公开(公告)号：US07882513B2

公开(公告)日：2011-02-01

申请号：US11909379

申请日：2006-03-20

申请人： Hideki Aikoh ,  Makoto Takashima ,  Takao Hayashi ,  Akira Yoshikawa ,  Tomio Yamamoto ,  Kouretsu Boku

发明人： Hideki Aikoh ,  Makoto Takashima ,  Takao Hayashi ,  Akira Yoshikawa ,  Tomio Yamamoto ,  Kouretsu Boku

IPC分类号： G11B17/00

CPC分类号： G11B33/1446 ,  G11B7/121 ,  G11B17/0282

摘要： An optical disk device of the present application includes: a turntable 30 including plural induction grooves 31a to 31h as concave portions radially extending from vicinity of a center of the turntable 30 and having open portions in an outer periphery of the turntable 30 and plural through-holes 32a to 32h penetrating bottom faces 33a to 33h on the vicinity of the center side of the plural induction grooves 31a to 31h and a top face of the turntable 30; and an outer rotor type spindle motor 35 provided with plural fins 36a to 36h as convex portions on a rotor on a side face thereof. The optical disk device of the present application utilizes an airflow generated by rotation of the rotor of the spindle motor 35 and the turntable 30 in conjunction therewith as a dust removing wind for removing dust attaching to an objective lens side area.

摘要翻译： 本申请的光盘装置包括：转盘30，其具有作为从转盘30的中心附近径向延伸的凹部的多个感应槽31a〜31h，在转台30的外周具有开口部， 在多个感应槽31a〜31h的中心侧附近的底面33a〜33h以及转台30的上表面的贯通孔32a〜32h的孔32a〜 以及外转子型主轴电动机35，在其侧面的转子上设置有作为凸部的多个翅片36a〜36h。 本申请的光盘装置利用由主轴电机35的转子和转盘30的旋转而产生的气流作为除尘附着到物镜侧区域的除尘风。

公开(公告)号：US07936644B2

公开(公告)日：2011-05-03

申请号：US11457209

申请日：2006-07-13

申请人： Kouretsu Boku ,  Kanji Wakabayashi ,  Yoshiaki Komma ,  Hideki Hayashi

发明人： Kouretsu Boku ,  Kanji Wakabayashi ,  Yoshiaki Komma ,  Hideki Hayashi

IPC分类号： G11B7/12 ,  G11B7/135

CPC分类号： G11B7/0935 ,  G11B7/121 ,  G11B7/1374 ,  G11B2007/0006

摘要： A highly reliable optical pickup which is not likely to collide with an optical disk is provided. Relative positions of two objective lenses 100 and 101 (along a focus direction) on a lens holder 102 are determined so that, while the objective lens 101 having a longer working distance is focused on an optical disk 200, the objective lens 100 having a shorter working distance and a protective member 103 are at positions which are more distant from the optical disk 200 than a height h of a protrusion which is present in an inner peripheral region of the optical disk optical disk 200.

摘要翻译： 提供了不可能与光盘碰撞的高度可靠的光学拾取器。 确定两个物镜100和101（沿着焦点方向）在透镜保持器102上的相对位置，使得当具有较长工作距离的物镜101聚焦在光盘200上时，物镜100具有较短的 工作距离和保护构件103位于距离光盘200更远的位置，与存在于光盘光盘200的内周区域的突起的高度h相比。