公开(公告)号：US07545726B2

公开(公告)日：2009-06-09

申请号：US11497630

申请日：2006-08-02

申请人： Kyoko Tadaki ,  Satoshi Shimokawa ,  Koichi Tezuka

发明人： Kyoko Tadaki ,  Satoshi Shimokawa ,  Koichi Tezuka

IPC分类号： G11B7/00

CPC分类号： G11B7/1275 ,  G11B7/0909 ,  G11B7/1362 ,  G11B7/1374 ,  G11B2007/0006

摘要： An optical disc drive includes a light source and an objective optical system for condensing a light from the light source onto a recording surface of an optical disc. A chassis which is movable radially of the optical disc supports both the light source and the objective optical system. The light source includes a red/infrared unit having a red/infrared LD and a blue LD. The red/infrared LD generates both a red beam and an infrared beam. The blue LD generates a blue beam. The objective optical system includes a first and a second object lenses whose focal distances are different. The first and the second object lenses are disposed on a circumferential line of the optical disc.

摘要翻译： 光盘驱动器包括光源和用于将来自光源的光聚光到光盘的记录表面上的物镜光学系统。 可在光盘径向移动的底盘支撑光源和物镜光学系统。 光源包括具有红/红外LD和蓝LD的红/红单元。 红/红光LD产生红光束和红外光束。 蓝色LD产生蓝色光束。 物镜光学系统包括焦距不同的第一和第二物镜。 第一和第二物镜设置在光盘的圆周线上。

公开(公告)号：US06703595B2

公开(公告)日：2004-03-09

申请号：US10079323

申请日：2002-02-20

申请人： Kyoko Tadaki

发明人： Kyoko Tadaki

IPC分类号： G02B2740

CPC分类号： G11B7/1381 ,  G11B7/00 ,  G11B7/0916 ,  G11B7/0948 ,  G11B7/131 ,  G11B7/1374 ,  G11B7/13927 ,  G11B2007/13727

摘要： An optical data-processing apparatus is provided for writing data to a data storage disk or reading data from the disk. The data-processing apparatus includes first and second light splitters. The first splitter splits reflected light from the storage disk into two semicircular rays. The second splitter splits these two semicircular rays into non-biased light and biased light. The data-processing apparatus also includes an optical detector for receiving the non-biased light and the biased light, thereby producing a first signal corresponding to the non-biased light and a second signal corresponding to the biased light. Based on the first and the second signals, a focus error signal and a spherical aberration signal are produced.

摘要翻译： 提供了一种用于将数据写入数据存储盘或从盘读取数据的光学数据处理装置。 数据处理装置包括第一和第二分光器。 第一个分离器将来自存储盘的反射光分成两个半圆形的光线。 第二分配器将这两个半圆形光线分成非偏置光和偏光。 数据处理装置还包括用于接收非偏置光和偏置光的光学检测器，从而产生对应于非偏置光的第一信号和对应于偏置光的第二信号。 基于第一和第二信号，产生聚焦误差信号和球面像差信号。

公开(公告)号：US06272079B1

公开(公告)日：2001-08-07

申请号：US09203158

申请日：1998-12-01

申请人： Nobuyuki Kanto ,  Koichi Tezuka ,  Haruhiko Izumi ,  Satoshi Shimokawa ,  Shingo Hamaguchi ,  Akihiko Makita ,  Kyoko Tadaki ,  Kazushi Uno ,  Goro Kawasaki

发明人： Nobuyuki Kanto ,  Koichi Tezuka ,  Haruhiko Izumi ,  Satoshi Shimokawa ,  Shingo Hamaguchi ,  Akihiko Makita ,  Kyoko Tadaki ,  Kazushi Uno ,  Goro Kawasaki

IPC分类号： G11B700

CPC分类号： G11B7/1374 ,  G11B7/08576 ,  G11B7/08582 ,  G11B7/093 ,  G11B7/122 ,  G11B2007/13727

摘要： An optical head unit used for an optical disk apparatus is provided. The optical head unit includes an object glass assembly for focusing a laser beam from a light source on an optical disk, an actuator movable at least in a focus control direction, a carriage for supporting the actuator and moving the actuator in a track control direction, and a slider which is attached to the carriage and capable of adjusting its posture in relation to a surface of the optical disk. The object glass assembly is provided with a plurality of lens units. Each lens unit includes at least one lens. One of the plural lens units is supported by the slider.

摘要翻译： 提供了一种用于光盘装置的光学头单元。 光头单元包括用于将来自光源的激光束聚焦在光盘上的目标玻璃组件，至少可以在焦点控制方向上移动的致动器，用于支撑致动器的滑架并沿着轨道控制方向移动致动器， 以及滑块，其附接到滑架并且能够相对于光盘的表面调整其姿态。 对象玻璃组件设置有多个透镜单元。 每个透镜单元包括至少一个透镜。 多个透镜单元中的一个由滑块支撑。

公开(公告)号：US20070041304A1

公开(公告)日：2007-02-22

申请号：US11497630

申请日：2006-08-02

申请人： Kyoko Tadaki ,  Satoshi Shimokawa ,  Koichi Tezuka

发明人： Kyoko Tadaki ,  Satoshi Shimokawa ,  Koichi Tezuka

IPC分类号： G11B7/135

CPC分类号： G11B7/1275 ,  G11B7/0909 ,  G11B7/1362 ,  G11B7/1374 ,  G11B2007/0006

摘要： An optical disc drive includes a light source and an objective optical system for condensing a light from the light source onto a recording surface of an optical disc. A chassis which is movable radially of the optical disc supports both the light source and the objective optical system. The light source includes a red/infrared unit having a red/infrared LD and a blue LD. The red/infrared LD generates both a red beam and an infrared beam. The blue LD generates a blue beam. The objective optical system includes a first and a second object lenses whose focal distances are different. The first and the second object lenses are disposed on a circumferential line of the optical disc.

摘要翻译： 光盘驱动器包括光源和用于将来自光源的光聚光到光盘的记录表面上的物镜光学系统。 可在光盘径向移动的底盘支撑光源和物镜光学系统。 光源包括具有红/红外LD和蓝LD的红/红单元。 红/红光LD产生红光束和红外光束。 蓝色LD产生蓝色光束。 物镜光学系统包括焦距不同的第一和第二物镜。 第一和第二物镜设置在光盘的圆周线上。

公开(公告)号：US06757221B1

公开(公告)日：2004-06-29

申请号：US09625654

申请日：2000-07-26

申请人： Kazushi Uno ,  Shingo Hamaguchi ,  Kyoko Tadaki ,  Kiyoto Matsui ,  Goro Kawasaki ,  Nobuyuki Kanto

发明人： Kazushi Uno ,  Shingo Hamaguchi ,  Kyoko Tadaki ,  Kiyoto Matsui ,  Goro Kawasaki ,  Nobuyuki Kanto

IPC分类号： G11B1100

CPC分类号： G11B11/10554 ,  G11B5/17 ,  G11B11/10534 ,  G11B11/1058

摘要： An optical head includes a lens carrier movable at least radially of a magneto-optical disk in facing relation thereto. An object lens is mounted on the lens carrier to converge a laser beam for forming a laser spot on the disk. The object lens has an optical axis and includes a lens surface directed toward the disk. A patterned coil is formed on the lens surface at least in one layer and has a light-passing opening corresponding to the optical axis of the object lens. A light-pervious layer is formed on the lens surface for closing the light-passing opening of the coil.

摘要翻译： 光学头包括透镜载体，该透镜载体可以至少径向地以与磁光盘相对的磁光盘径向移动。 物镜安装在透镜载体上以会聚用于在盘上形成激光斑的激光束。 物镜具有光轴并且包括朝向盘的透镜表面。 图案化的线圈至少在一个层上形成在透镜表面上，并且具有对应于物镜的光轴的光通过开口。 在透镜表面上形成透光层，用于封闭线圈的通光开口。