公开(公告)号：US08416672B2

公开(公告)日：2013-04-09

申请号：US12963785

申请日：2010-12-09

申请人： Ui-yol Kim ,  Yong-jae Lee ,  Pyong-yong Seong ,  Hong-kuk Kim

发明人： Ui-yol Kim ,  Yong-jae Lee ,  Pyong-yong Seong ,  Hong-kuk Kim

IPC分类号： G11B7/13

CPC分类号： G11B7/131 ,  G11B2007/0006

摘要： An optical pickup, photodetector, and optical drive adopting the optical pickup are provided. The optical pickup may include a light emitting system having a plurality of light sources corresponding to a plurality of mediums a light receiving system including a photodetector for converting light reflected from a medium into an electrical signal. The photodetector may include first and second light receiving sensors corresponding to the plurality of mediums, each of the first and second light receiving sensors comprising a plurality of regions, each region comprising a plurality of sectors. The plurality of regions of the first and second light receiving sensors may include shared sectors that are shared by the first and second light receiving sensors and exclusive sectors that are exclusively used in the first light receiving sensor or the second light receiving sensor.

摘要翻译： 提供采用光学拾取器的光学拾取器，光电检测器和光学驱动器。 光拾取器可以包括具有对应于多个介质的多个光源的发光系统，光接收系统包括用于将从介质反射的光转换成电信号的光电检测器。 光电检测器可以包括对应于多个介质的第一和第二光接收传感器，第一和第二光接收传感器中的每一个包括多个区域，每个区域包括多个扇区。 第一和第二光接收传感器的多个区域可以包括由第一和第二光接收传感器共享的共享扇区和专门用于第一光接收传感器或第二光接收传感器的专用扇区。

公开(公告)号：US20120106311A1

公开(公告)日：2012-05-03

申请号：US13282635

申请日：2011-10-27

申请人： Ui-yol Kim ,  Yong-Jae Lee

发明人： Ui-yol Kim ,  Yong-Jae Lee

IPC分类号： G11B7/1353

CPC分类号： G11B7/1353 ,  G11B7/0903 ,  G11B7/131 ,  G11B7/1395 ,  G11B2007/0006

摘要： An optical pickup and an information storage medium system using the same. The optical pickup includes a light source that emits light having a plurality of different wavelengths. The optical pickup includes a diffraction device having a plurality of diffraction patterns corresponding to the plurality of different wavelengths to divide the light incident from the light source unit into main light and sub light. The optical pickup further includes a photo-detector having a first main light reception unit that receives the main light and a first sub light reception unit that receives the sub light so as to detect an information signal and/or an error signal by receiving reflected light. The first sub light reception unit of the photo-detector is shaped so as to reduce reception of noise sub light due to diffraction based on an undesired diffraction pattern of sub light generated the diffraction device.

摘要翻译： 一种光学拾取器和使用该拾取器的信息存储介质系统。 光学拾取器包括发射具有多个不同波长的光的光源。 光拾取器包括衍射装置，其具有对应于多个不同波长的多个衍射图案，以将从光源单元入射的光分成主光和副光。 光拾取器还包括具有接收主光的第一主光接收单元和接收子光的第一子光接收单元的光检测器，以便通过接收反射光来检测信息信号和/或误差信号 。 光检测器的第一子光接收单元被成形为基于由衍射装置产生的副光的不想要的衍射图来减少由衍射引起的噪声子光的接收。

公开(公告)号：US08416670B2

公开(公告)日：2013-04-09

申请号：US12891072

申请日：2010-09-27

申请人： Ui-yol Kim ,  Yong-jae Lee ,  Pyong-yong Seong

发明人： Ui-yol Kim ,  Yong-jae Lee ,  Pyong-yong Seong

IPC分类号： G11B7/135

CPC分类号： G11B7/08511 ,  G11B2007/0006 ,  G11B2007/0013

摘要： An optical pickup device corresponding to an optical recording medium having a plurality of recording layers, and an optical drive using the device are provided. The optical pickup device includes a collimator lens disposed between an object lens and a light source. The collimator lens adjusts a focal length with respect to the optical recording medium, and the object lens focuses light passing through the collimator lens, on the optical recording medium. The object lens is optically optimized for an upper or second-upper recording layer of the optical recording medium.

摘要翻译： 提供对应于具有多个记录层的光学记录介质的光学拾取装置和使用该装置的光学驱动器。 光学拾取装置包括设置在物镜和光源之间的准直透镜。 准直透镜调整相对于光记录介质的焦距，并且物镜将通过准直透镜的光聚焦在光记录介质上。 物镜被光学优化用于光学记录介质的上部或第二上部记录层。

公开(公告)号：US08576684B2

公开(公告)日：2013-11-05

申请号：US13282635

申请日：2011-10-27

申请人： Ui-yol Kim ,  Yong-jae Lee

发明人： Ui-yol Kim ,  Yong-jae Lee

IPC分类号： G11B7/00 ,  G11B7/135 ,  G11B5/58 ,  G11B5/55

CPC分类号： G11B7/1353 ,  G11B7/0903 ,  G11B7/131 ,  G11B7/1395 ,  G11B2007/0006

摘要： An optical pickup and an information storage medium system using the same. The optical pickup includes a light source that emits light having a plurality of different wavelengths. The optical pickup includes a diffraction device having a plurality of diffraction patterns corresponding to the plurality of different wavelengths to divide the light incident from the light source unit into main light and sub light. The optical pickup further includes a photo-detector having a first main light reception unit that receives the main light and a first sub light reception unit that receives the sub light so as to detect an information signal and/or an error signal by receiving reflected light. The first sub light reception unit of the photo-detector is shaped so as to reduce reception of noise sub light due to diffraction based on an undesired diffraction pattern of sub light generated the diffraction device.

摘要翻译： 一种光学拾取器和使用该拾取器的信息存储介质系统。 光拾取器包括发射具有多个不同波长的光的光源。 光拾取器包括衍射装置，其具有对应于多个不同波长的多个衍射图案，以将从光源单元入射的光分成主光和副光。 光拾取器还包括具有接收主光的第一主光接收单元和接收子光的第一子光接收单元的光检测器，以便通过接收反射光来检测信息信号和/或误差信号 。 光检测器的第一子光接收单元被成形为基于由衍射装置产生的副光的不想要的衍射图来减少由衍射引起的噪声子光的接收。

公开(公告)号：US08565056B2

公开(公告)日：2013-10-22

申请号：US13299172

申请日：2011-11-17

申请人： Ui-yol Kim ,  Yong-jae Lee

发明人： Ui-yol Kim ,  Yong-jae Lee

IPC分类号： G11B7/00

CPC分类号： G11B7/131 ,  G11B7/0903

摘要： A method of generating a 1-beam tracking error signal (TES), an optical pickup device, and an optical disc drive device adopting the method. A light-receiving element receives a single reflection beam and detects an alternating current (AC) component and a direct current (DC) component from each of areas formed on two sides of a data track. A servo unit generates a TES by adding and subtracting the AC component and the DC component.

摘要翻译： 一种产生1光束跟踪误差信号（TES）的方法，光学拾取装置和采用该方法的光盘驱动装置。 光接收元件接收单个反射光束并且检测来自形成在数据轨道两侧的每个区域的交流（AC）分量和直流（DC）分量。 伺服单元通过加减去AC分量和DC分量来产生TES。

公开(公告)号：US20120127841A1

公开(公告)日：2012-05-24

申请号：US13287396

申请日：2011-11-02

申请人： Ui-yol Kim ,  Yong-jae Lee

发明人： Ui-yol Kim ,  Yong-jae Lee

IPC分类号： G11B7/135 ,  G11B7/1353 ,  G11B7/085 ,  G11B7/1374

CPC分类号： G11B7/1353 ,  G11B7/131 ,  G11B7/1374 ,  G11B2007/0006

摘要： Provided are a single beam optical pickup device and a disc drive including the optical pickup device. The optical pickup device includes a light controlling device that prevents or limits stray light generated from a medium from being incident on a light sensor. The light controlling device may further include an additional auxiliary light sensor so as to reuse effective light among diffracted light.

摘要翻译： 提供了单光束光学拾取装置和包括光学拾取装置的盘驱动器。 光学拾取装置包括防止或限制从介质产生的杂散光入射到光传感器上的光控制装置。 光控制装置还可以包括附加辅助光传感器，以便在衍射光中重复使用有效光。

公开(公告)号：US08675465B2

公开(公告)日：2014-03-18

申请号：US13178286

申请日：2011-07-07

申请人： Ui-yol Kim ,  Yong-jae Lee

发明人： Ui-yol Kim ,  Yong-jae Lee

IPC分类号： G11B7/00

CPC分类号： G11B7/1365 ,  G11B7/0903 ,  G11B7/131 ,  G11B2007/0006 ,  G11B2007/0013

摘要： An optical pickup device, an optical disk drive and method of controlling light performed by the optical pickup device are provided. The optical pickup device includes: a light transmitting system including an object lens for facing a medium having a multi recording layer for storing information, a light source system for providing a plurality of beams used to record information on or reproduce information from the multi recording layer via the light transmitting system, a light-receiving system disposed on a path of a beam reflected from the medium, and a light controller including a light control device for controlling stray light generated in the medium such that the stray light does not reach the light-receiving device.

摘要翻译： 提供一种光拾取装置，光盘驱动器和控制由光拾取装置执行的光的方法。 光拾取装置包括：光传输系统，包括用于面对具有用于存储信息的多记录层的介质的物镜;光源系统，用于提供用于从多记录层记录信息或从多记录层再现信息的多个光束 通过光传输系统，设置在从介质反射的光束的路径上的光接收系统，以及光控制器，其包括用于控制在介质中产生的杂散光的光控制装置，使得杂散光不到达光 接收装置

公开(公告)号：US08520488B2

公开(公告)日：2013-08-27

申请号：US13179603

申请日：2011-07-11

申请人： Ui-yol Kim ,  Yong-jae Lee

发明人： Ui-yol Kim ,  Yong-jae Lee

IPC分类号： G11B7/00

CPC分类号： G11B7/1398 ,  G11B7/125 ,  G11B7/1374 ,  G11B7/1376 ,  G11B7/1378 ,  G11B7/13925 ,  G11B2007/0006

摘要： An optical pickup device, an optical drive using the same, and a method of forming a beam spot are provided. The optical pickup includes a light source system that includes a light source corresponding to at least one of a digital versatile disc (DVD) and a Blu-ray disc (BD). The light source forms a beam spot having an oval shape with a long axis and a short axis on an information recording track of the disc, and the light source is disposed such that the long axis is maintained at an angle ranging from 0° to 30° with respect to a radial direction passing through a rotation center of the disc.

摘要翻译： 提供一种光学拾取装置，使用其的光学驱动器以及形成束斑的方法。 光拾取器包括光源系统，其包括对应于数字通用盘（DVD）和蓝光盘（BD）中的至少一个的光源。 光源在盘的信息记录轨道上形成具有长轴和短轴的椭圆形的束斑，并且光源被设置成使得长轴保持在0°至30°的角度 °相对于穿过盘的旋转中心的径向方向。

公开(公告)号：US20130194906A1

公开(公告)日：2013-08-01

申请号：US13756660

申请日：2013-02-01

申请人： Ji-sun Ahn ,  Ui-yol Kim ,  Yong-jae Lee

发明人： Ji-sun Ahn ,  Ui-yol Kim ,  Yong-jae Lee

IPC分类号： G11B7/125

CPC分类号： G11B7/125 ,  G11B7/1275 ,  G11B7/135 ,  G11B7/1372 ,  G11B7/1378

摘要： Provided are an optical pickup and an optical system employing the optical pickup. The optical pickup includes a twin light source. In various aspects, a length between the two light sources of a twin light source is reduced while the magnification of the optical pickup is increased, in comparison to a conventional optical pickup. Accordingly, a manufacturing cost of the optical pickup may be reduced.

摘要翻译： 提供了一种采用光学拾取器的光学拾取器和光学系统。 光学拾取器包括双光源。 在各方面，与传统的光学拾取器相比，双光源的两个光源之间的长度减小，同时光学拾取器的放大率增加。 因此，可以降低光学拾取器的制造成本。

公开(公告)号：US20120134252A1

公开(公告)日：2012-05-31

申请号：US13299172

申请日：2011-11-17

申请人： Ui-yol Kim ,  Yong-jae Lee

发明人： Ui-yol Kim ,  Yong-jae Lee

IPC分类号： G11B7/09 ,  G11B27/36

CPC分类号： G11B7/131 ,  G11B7/0903

摘要： A method of generating a 1-beam tracking error signal (TES), an optical pickup device, and an optical disc drive device adopting the method. A light-receiving element receives a single reflection beam and detects an alternating current (AC) component and a direct current (DC) component from each of areas formed on two sides of a data track. A servo unit generates a TES by adding and subtracting the AC component and the DC component.

摘要翻译： 一种产生1光束跟踪误差信号（TES）的方法，光学拾取装置和采用该方法的光盘驱动装置。 光接收元件接收单个反射光束并且检测来自形成在数据轨道两侧的每个区域的交流（AC）分量和直流（DC）分量。 伺服单元通过加减去AC分量和DC分量来产生TES。