公开(公告)号：US20110216641A1

公开(公告)日：2011-09-08

申请号：US12856734

申请日：2010-08-16

申请人： Jun HATO ,  Akio YABE ,  Kazuhiro TODORI ,  Daisuke TOMITA

发明人： Jun HATO ,  Akio YABE ,  Kazuhiro TODORI ,  Daisuke TOMITA

IPC分类号： G11B7/135

CPC分类号： G11B7/135

摘要： In an optical pick-up used in common with DVD/CD and BD, when the thickness is intended to be reduced by mounting a total reflection mirror, a cavity for passing through a laser light is necessary and, since this decreases the degree of freedom for arranging tracking coils and magnets and secondary resonance caused by a magnetic thrust in the tracking direction tends to be generated, an improvement therefor is necessary. In a lens coil holder of the optical pick-up having an objective lens and tracking coil mounted thereon each of the coils is arranged such that the thrust relative to the vertical center of the suspension wires that support the lens coil holder is well balanced. For example, most of the portion of the tracking coils is situated at one height relative to the suspension wire and the tilt coil is situated at the other remaining height.

摘要翻译： 在与DVD / CD和BD共同使用的光学拾取器中，当通过安装全反射镜来减小厚度时，需要用于穿过激光的空腔，并且因为这降低了自由度 为了排列跟踪线圈和磁体，并且倾向于产生由跟踪方向上的磁推力引起的二次谐振，因此需要进行改进。 在具有安装在其上的每个线圈的物镜和跟踪线圈的光学拾取器的透镜线圈保持器被布置成使得相对于支撑透镜线圈架的悬挂线的竖直中心的推力平衡良好。 例如，跟踪线圈的大部分位于相对于悬挂线的一个高度处，并且倾斜线圈位于另一个剩余高度。

公开(公告)号：US20120260273A1

公开(公告)日：2012-10-11

申请号：US13435665

申请日：2012-03-30

申请人： Yasushi KINOSHITA ,  Jun HATO ,  Kazuhiro TODORI

发明人： Yasushi KINOSHITA ,  Jun HATO ,  Kazuhiro TODORI

IPC分类号： G11B7/00

CPC分类号： G11B7/1376 ,  G11B7/22

摘要： An optical pickup includes a lens moving mechanism constructed of a lens, a lens holder holding the lens, a guide member guiding the lens holder, a lead screw including a thread groove, a motor rotating the lead screw, and a rack gear including a body fixed to the lens holder and claws fitted into the thread groove of the lead screw, in which an arm connecting the body and the claws of the rack gear is formed so that the shape of a cross section perpendicular to the rotational axis direction of the lead screw is a convex shape, a recess shape or a wave-shape.

摘要翻译： 光学拾取器包括透镜移动机构，透镜移动机构，保持透镜的透镜夹持器，引导透镜保持器的引导构件，包括螺纹槽的导螺杆，旋转导螺杆的马达和包括主体的齿条 固定在透镜保持架上，并装配在导螺杆的螺纹槽中的爪，其中连接主体和齿条的爪的臂形成为与引线的旋转轴线方向垂直的截面形状 螺丝是凸形，凹形或波形。

公开(公告)号：US20100243873A1

公开(公告)日：2010-09-30

申请号：US12620626

申请日：2009-11-18

申请人： Rika NOMURA ,  Kazumi TAKAHASHI ,  Seiichi KATO ,  Yasushi KINOSHITA ,  Kazuhiro TODORI

发明人： Rika NOMURA ,  Kazumi TAKAHASHI ,  Seiichi KATO ,  Yasushi KINOSHITA ,  Kazuhiro TODORI

IPC分类号： H05K7/00

CPC分类号： G11B7/22 ,  G11B7/1378 ,  G11B7/13922

摘要： An optical pickup device includes a house having three walls connected together whose horizontal cross-section is substantially U-shaped. A first wall supports one end of a shaft, a second wall facing the first wall supports the other end of the shaft and a third wall connects the first and second walls. A lubricant tray is surrounded by the three walls and the shaft. By the shaft being attached to an end side surface of the lubricant tray, the shaft can be integrally formed with the housing. A radius of curvature or an angle formed on a horizontal cross-section of the three walls is larger than a radius of curvature or an angle formed between one of the three walls and the lubricant tray.

摘要翻译： 光学拾取装置包括具有连接在一起的水平横截面基本上为U形的三壁的房屋。 第一壁支撑轴的一端，面向第一壁的第二壁支撑轴的另一端，第三壁连接第一和第二壁。 润滑剂托盘被三个墙壁和轴围绕。 通过将轴连接到润滑剂托盘的端侧表面，轴可以与壳体一体地形成。 形成在三个壁的水平横截面上的曲率半径或角度大于三个壁和润滑剂托盘中的一个之间形成的曲率半径或角度。