公开(公告)号：US08416672B2

公开(公告)日：2013-04-09

申请号：US12963785

申请日：2010-12-09

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

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

IPC: G11B7/13

CPC classification number: G11B7/131 ,  G11B2007/0006

Abstract: 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.

Abstract translation: 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：US08416670B2

公开(公告)日：2013-04-09

申请号：US12891072

申请日：2010-09-27

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

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

IPC: G11B7/135

CPC classification number: G11B7/08511 ,  G11B2007/0006 ,  G11B2007/0013

Abstract: 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.

Abstract translation: 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：US20110141869A1

公开(公告)日：2011-06-16

申请号：US12963785

申请日：2010-12-09

Applicant: Ui-yol KIM ,  Yong-jae Lee ,  Pyong-yong Seong ,  Hong-kuk Kim

Inventor： Ui-yol KIM ,  Yong-jae Lee ,  Pyong-yong Seong ,  Hong-kuk Kim

IPC: G11B7/00 ,  H01L27/14

CPC classification number: G11B7/131 ,  G11B2007/0006

Abstract: 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.

Abstract translation: 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：US20110075535A1

公开(公告)日：2011-03-31

申请号：US12891072

申请日：2010-09-27

Applicant: Ui-yol KIM ,  Yong-jae Lee ,  Pyong-yong Seong

Inventor： Ui-yol KIM ,  Yong-jae Lee ,  Pyong-yong Seong

IPC: G11B7/12 ,  G11B7/135

CPC classification number: G11B7/08511 ,  G11B2007/0006 ,  G11B2007/0013

Abstract: 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.

Abstract translation: 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：US08493831B2

公开(公告)日：2013-07-23

申请号：US10897015

申请日：2004-07-23

Applicant: Ui-yol Kim ,  Tae-kyung Kim ,  Chong-sam Chung ,  Pyong-yong Seong

Inventor： Ui-yol Kim ,  Tae-kyung Kim ,  Chong-sam Chung ,  Pyong-yong Seong

IPC: G11B7/00

CPC classification number: G11B7/1353 ,  G11B7/1275 ,  G11B7/1374 ,  G11B2007/0006

Abstract: A compatible optical pickup including an optical unit and a focusing unit. The optical unit emits a short wavelength light for high-density recording media and a long wavelength light for low-density recording media, directs the short and long wavelength light to a recording medium, receives lights reflected by the recording medium, and detects an information reproduction signal and/or an error signal from the received lights. The focusing unit focuses light received from the optical unit to form a light spot on a recording surface of the recording medium, diffracts the short wavelength light into a zero order light and the long wavelength light into a second order light to be used as effective light for recording and/or reproduction. Thus, a high-density recording medium and a low-density recording medium having different thicknesses can be compatibly used.

Abstract translation: 一种兼容的光学拾取器，包括光学单元和聚焦单元。 光学单元发射用于高密度记录介质的短波长光和用于低密度记录介质的长波长光，将短波长和长波长光引导到记录介质，接收由记录介质反射的光，并检测信息 再现信号和/或来自接收到的光的误差信号。 聚焦单元将从光学单元接收的光聚焦在记录介质的记录表面上形成光点，将短波长的光衍射成零级光，将长波长的光衍射成二阶光，作为有效光 用于记录和/或再现。 因此，可以兼容使用具有不同厚度的高密度记录介质和低密度记录介质。

公开(公告)号：US07355953B2

公开(公告)日：2008-04-08

申请号：US10686785

申请日：2003-10-17

Applicant: Ui-yol Kim ,  Byung-ryul Ryoo ,  Pyong-yong Seong ,  Myoung-cheol Cho ,  Kyung-ui Park

Inventor： Ui-yol Kim ,  Byung-ryul Ryoo ,  Pyong-yong Seong ,  Myoung-cheol Cho ,  Kyung-ui Park

IPC: G11B7/125

CPC classification number: G11B7/1395 ,  G11B7/1263 ,  G11B7/1353 ,  G11B2007/13727

Abstract: An optical pickup includes a light source which emits light, a grating which separates a portion of the light emitted from the light source, a reflecting member which reflects another portion of the light emitted from the light source, a monitoring photodetector disposed on a traveling path of the light reflected from the reflecting member and which measures the reflected light, an optical path changer which changes an optical path of the light separated by the grating, an objective lens light which condenses the light the optical path of which is changed onto a disc, and a signal detecting photodetector which receives the light reflected from the disc.

Abstract translation: 光拾取器包括发光的光源，分离从光源发出的光的一部分的光栅，反射从光源发射的光的另一部分的反射部件，设置在行进路径上的监视光电检测器 从反射构件反射并测量反射光的光，改变由光栅分离的光的光路的光路改变器，将其光路改变为光盘的光会聚的物镜光 以及接收从盘反射的光的信号检测光电检测器。

公开(公告)号：US07835235B2

公开(公告)日：2010-11-16

申请号：US11808517

申请日：2007-06-11

Applicant: Sun-mook Park ,  Ui-yol Kim ,  Jong-kook Lee ,  Pyong-yong Seong

Inventor： Sun-mook Park ,  Ui-yol Kim ,  Jong-kook Lee ,  Pyong-yong Seong

IPC: G11B7/00

CPC classification number: G11B7/0903 ,  G11B7/131 ,  G11B7/1353 ,  G11B7/1374 ,  G11B7/1378 ,  G11B2007/0006

Abstract: An optical pickup apparatus and an optical recording/reproducing system including the same, the optical pickup apparatus includes at least two optical systems for different types of optical recording media, one of objective lenses of the optical systems being offset from a central line of the optical recording medium, wherein the optical system including the offset objective lens having a diffraction grating diffracting light emitted from a light source to form a main beam and sub-beams, wherein the diffraction grating includes first and second diffraction regions having different grating patterns arranged alternately thereon, and a center of each sub-beam is arranged at a boundary of the first and second diffraction regions of the diffraction grating, and a center of the diffraction grating and an optical axis of the light source are adjusted to be coincided with each other, preventing generation of an alternating current in a Push-Pull signal of the sub-beams.

Abstract translation: 一种光学拾取装置和包括该光学拾取装置的光学记录/再现系统，该光学拾取装置包括用于不同类型的光学记录介质的至少两个光学系统，光学系统的物镜之一偏离光学中心线 其中所述光学系统包括具有衍射光栅的衍射光栅的光学系统，所述衍射光栅衍射从光源发射的光以形成主光束和子光束，其中所述衍射光栅包括交替地布置有不同格栅图案的第一和第二衍射区域 并且每个子光束的中心被布置在衍射光栅的第一和第二衍射区域的边界处，并且衍射光栅的中心和光源的光轴被调节为彼此一致， 防止在子光束的推挽信号中产生交流电。

公开(公告)号：US20050018560A1

公开(公告)日：2005-01-27

申请号：US10897015

申请日：2004-07-23

Applicant: Ui-yol Kim ,  Tae-kyung Kim ,  Chong-sam Chung ,  Pyong-yong Seong

Inventor： Ui-yol Kim ,  Tae-kyung Kim ,  Chong-sam Chung ,  Pyong-yong Seong

IPC: G11B7/00 ,  G11B7/125 ,  G11B7/135

CPC classification number: G11B7/1353 ,  G11B7/1275 ,  G11B7/1374 ,  G11B2007/0006

Abstract: A compatible optical pickup including an optical unit and a focusing unit. The optical unit emits a short wavelength light for high-density recording media and a long wavelength light for low-density recording media, directs the short and long wavelength light to a recording medium, receives lights reflected by the recording medium, and detects an information reproduction signal and/or an error signal from the received lights. The focusing unit focuses light received from the optical unit to form a light spot on a recording surface of the recording medium, diffracts the short wavelength light into a zero order light and the long wavelength light into a second order light to be used as effective light for recording and/or reproduction. Thus, a high-density recording medium and a low-density recording medium having different thicknesses can be compatibly used.

Abstract translation: 一种兼容的光学拾取器，包括光学单元和聚焦单元。 光学单元发射用于高密度记录介质的短波长光和用于低密度记录介质的长波长光，将短波长和长波长光引导到记录介质，接收由记录介质反射的光，并检测信息 再现信号和/或来自接收到的光的误差信号。 聚焦单元将从光学单元接收的光聚焦在记录介质的记录表面上形成光点，将短波长的光衍射成零级光，将长波长的光衍射成二阶光，作为有效光 用于记录和/或再现。 因此，可以兼容使用具有不同厚度的高密度记录介质和低密度记录介质。

公开(公告)号：US20080037387A1

公开(公告)日：2008-02-14

申请号：US11808517

申请日：2007-06-11

Applicant: Sun-mook Park ,  Ui-yol Kim ,  Jong-kook Lee ,  Pyong-yong Seong

Inventor： Sun-mook Park ,  Ui-yol Kim ,  Jong-kook Lee ,  Pyong-yong Seong

IPC: G11B7/00

CPC classification number: G11B7/0903 ,  G11B7/131 ,  G11B7/1353 ,  G11B7/1374 ,  G11B7/1378 ,  G11B2007/0006

Abstract: An optical pickup apparatus and an optical recording/reproducing system including the same, the optical pickup apparatus includes at least two optical systems for different types of optical recording media, one of objective lenses of the optical systems being offset from a central line of the optical recording medium, wherein the optical system including the offset objective lens having a diffraction grating diffracting light emitted from a light source to form a main beam and sub-beams, wherein the diffraction grating includes first and second diffraction regions having different grating patterns arranged alternately thereon, and a center of each sub-beam is arranged at a boundary of the first and second diffraction regions of the diffraction grating, and a center of the diffraction grating and an optical axis of the light source are adjusted to be coincided with each other, preventing generation of an alternating current in a Push-Pull signal of the sub-beams.

Abstract translation: 一种光学拾取装置和包括该光学拾取装置的光学记录/再现系统，该光学拾取装置包括用于不同类型的光学记录介质的至少两个光学系统，光学系统的物镜之一偏离光学中心线 其中所述光学系统包括具有衍射光栅的衍射光栅的光学系统，所述衍射光栅衍射从光源发射的光以形成主光束和子光束，其中所述衍射光栅包括交替地布置有不同格栅图案的第一和第二衍射区域 并且每个子光束的中心被布置在衍射光栅的第一和第二衍射区域的边界处，并且衍射光栅的中心和光源的光轴被调节为彼此一致， 防止在子光束的推挽信号中产生交流电。

公开(公告)号：US07280458B2

公开(公告)日：2007-10-09

申请号：US10120786

申请日：2002-04-12

Applicant: Yong-jae Lee ,  Sung-ro Go ,  Pyong-yong Seong ,  Chang-jin Yang ,  Gi-bong Song ,  Byung-in Ma ,  Jong-koog Lee

Inventor： Yong-jae Lee ,  Sung-ro Go ,  Pyong-yong Seong ,  Chang-jin Yang ,  Gi-bong Song ,  Byung-in Ma ,  Jong-koog Lee

IPC: G11B7/95

CPC classification number: G11B7/131 ,  G11B7/00718 ,  G11B7/094 ,  G11B7/0941 ,  G11B7/0943 ,  G11B7/0946 ,  G11B7/0956 ,  G11B7/1275 ,  G11B7/1353 ,  G11B7/1367 ,  G11B7/139 ,  G11B7/13922 ,  G11B2007/0006

Abstract: An optical pickup apparatus includes a first light source to emit a first light beam having a predetermined wavelength, a first optical path changer to change a proceeding path of the first light beam, an objective lens to focus the first light beam on a recording medium, a diffraction member to divide the first light beam reflected by the recording medium into five light regions, the diffraction member having a first diffraction region having a wide width in a direction corresponding to a tangential direction of the recording medium and second through fifth diffraction regions sequentially arranged around the outside of the first diffraction region in a direction corresponding to a radial direction of the recording medium, and a first photodetector having first through fifth light receiving portions to receive the first light beam reflected by the recording medium.

Abstract translation: 一种光拾取装置包括：发射具有预定波长的第一光束的第一光源;改变第一光束的行进路径的第一光路改变器;将第一光束聚焦在记录介质上的物镜; 衍射构件，用于将由记录介质反射的第一光束分成五个光区域，衍射构件具有在与记录介质的切线方向对应的方向上具有宽宽度的第一衍射区域和第二至第五衍射区域 在与所述记录介质的径向对应的方向上围绕所述第一衍射区域的外侧布置;以及第一光电检测器，具有第一至第五光接收部分，以接收由所述记录介质反射的所述第一光束。