公开(公告)号：US06381207B1

公开(公告)日：2002-04-30

申请号：US09410627

申请日：1999-10-01

Applicant: Byung-ryul Ryoo ,  Pyong-yong Seong ,  Seok-jung Kim ,  Yong-ki Son ,  Tae-kyung Kim ,  Yong-jae Lee ,  Jang-hoon Yoo

Inventor： Byung-ryul Ryoo ,  Pyong-yong Seong ,  Seok-jung Kim ,  Yong-ki Son ,  Tae-kyung Kim ,  Yong-jae Lee ,  Jang-hoon Yoo

IPC: G11B3302

CPC classification number: G11B7/22

Abstract: An optical pickup of an optical disk drive. The optical pickup includes a laser beam source for generating a laser beam; a pickup base having an objective lens for projecting the laser beam generated from the laser beam source to an information recording surface of an optical disk; a variation adjusting plate which is movably disposed on the pickup base to be moved in vertical and lateral directions, and has a rotational hole formed at a central portion thereof; and a rotation adjusting plate including a rotational section having a predetermined curvature which is inserted into the rotational hole of the variation adjusting plate, and with a laser beam source fixed therein, the rotation adjusting plate being rotated with respect to the variation adjusting plate. An optical system including a collimating lens and a reflective mirror is fixed to the pickup base. Since the light path with respect to the field angle and the beam shift is adjusted by moving and/or rotating the light emitting point of the laser beam source with respect to the light axis of the collimating lens, the size of the optical pickup becomes smaller. Further, since the collimating lens and the light source are fixed to the respective structures, the light path is controlled regardless of the focal distance of the collimating lens. Accordingly, if the focal distance of the collimating lens has to be lengthened, the beam shift and the field angle can be precisely adjusted without enlarging the optical pickup.

Abstract translation: 光盘驱动器的光学拾取器。 光学拾取器包括用于产生激光束的激光束源; 具有用于将从激光束源产生的激光束投射到光盘的信息记录表面的物镜的拾取器基座; 可移动地设置在拾取器基座上以在垂直和横向方向上移动的变化调节板，并且具有形成在其中心部分的旋转孔; 以及旋转调节板，其包括插入到变化调节板的旋转孔中的具有预定曲率的旋转部分和固定在其中的激光束源，旋转调节板相对于变化调节板旋转。 包括准直透镜和反射镜的光学系统固定在拾取器基座上。 由于通过相对于准直透镜的光轴移动和/或旋转激光束源的发光点来调节相对于场角和光束偏移的光路，所以光拾取器的尺寸变小 。 此外，由于准直透镜和光源被固定到各个结构，所以不管准直透镜的焦距如何，都可以控制光路。 因此，如果准直透镜的焦距必须延长，则可以在不放大光学拾取器的情况下精确地调整光束偏移和场角。

公开(公告)号：US06282161B1

公开(公告)日：2001-08-28

申请号：US09369127

申请日：1999-08-05

Applicant: Yong-ki Son ,  Pyong-yong Seong ,  Byung-ryul Ryoo ,  Seok-jung Kim ,  Joong-eon Seo ,  In-wook Hwang ,  Young-sun Seo

Inventor： Yong-ki Son ,  Pyong-yong Seong ,  Byung-ryul Ryoo ,  Seok-jung Kim ,  Joong-eon Seo ,  In-wook Hwang ,  Young-sun Seo

IPC: G11B390

CPC classification number: G11B7/0956

Abstract: An optical recording and reproducing apparatus for adjusting a tilt of an optical pickup in accordance with an amount of jitter of a reproduction signal, a tilt adjusting method therefor, and a recording control method. The optical recording and reproducing apparatus includes an optical pickup having an object lens, a tilt adjusting unit for adjusting a tilt angle of the object lens, a jitter detecting unit for detecting an amount of jitter of a reproducing signal generated by the optical pickup from a disk, and a tilt controlling unit for minimizing the amount of jitter by feeding the amount of jitter detected by the jitter detecting unit back to the tilt adjusting unit. According to the optical recording and reproducing apparatus, there is no need for a space in which a displacement sensor detecting the tilt angle of the optical pickup faces the disk.

Abstract translation: 一种用于根据再现信号的抖动量，其倾斜调整方法和记录控制方法来调整光学拾取器的倾斜的光学记录和再现装置。 光学记录和再现装置包括具有物镜的光学拾取器，用于调节物镜的倾斜角度的倾斜调节单元，用于检测由光学拾取器产生的再现信号的抖动量的抖动检测单元， 盘和倾斜控制单元，用于通过将由抖动检测单元检测到的抖动量馈送回倾斜调节单元来最小化抖动量。 根据光学记录和再现装置，不需要用于检测光学拾取器的倾斜角度的位移传感器面对盘的空间。

公开(公告)号：US5594714A

公开(公告)日：1997-01-14

申请号：US366255

申请日：1994-12-29

Applicant: Chul-woo Lee ,  Kyung-hwa Rim ,  Pyong-yong Seong ,  Chong-sam Chung

Inventor： Chul-woo Lee ,  Kyung-hwa Rim ,  Pyong-yong Seong ,  Chong-sam Chung

IPC: G11B7/13 ,  G11B7/09 ,  G11B7/135 ,  G11B7/00

CPC classification number: G11B7/131 ,  G11B7/0908 ,  G11B7/0917 ,  G11B7/0943

Abstract: In an optical pickup, a focus error detector for detecting a focus error of an objective lens for an optical disk includes a focusing lens for focusing the reflected light of the optical disk, a diffraction optical device for diffracting the reflected light focused by the focusing lens into two light rays, two bi-segmented photo-detectors for receiving the two split light rays, respectively, and a circuit for outputting a desired focus error signal from the signal detected from the photo-detectors. The circuit outputs a pure focus error signal without errors created by the deviation of the light amount in the photo-detectors due to the tilt or shift of the reflected light, thereby contributing to the stable operation and miniaturization of the optical pickup.

Abstract translation: 在光拾取器中，用于检测光盘的物镜的聚焦误差的聚焦误差检测器包括：用于聚焦光盘的反射光的聚焦透镜;用于衍射由聚焦透镜聚焦的反射光的衍射光学装置 分别用于接收两个分开的光线的两个双段光电检测器和用于从从光电检测器检测的信号中输出所需的聚焦误差信号的电路。 由于反射光的倾斜或偏移，电路输出纯聚焦误差信号，而不会由于光检测器中光量的偏差而产生误差，从而有助于光拾取器的稳定操作和小型化。

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：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：US07457226B2

公开(公告)日：2008-11-25

申请号：US10937255

申请日：2004-09-10

Applicant: Won-Ik Cho ,  Pyong-yong Seong ,  Dong-ryeol Lee ,  Ki-bok Kim

Inventor： Won-Ik Cho ,  Pyong-yong Seong ,  Dong-ryeol Lee ,  Ki-bok Kim

IPC: G11B7/00

CPC classification number: G11B7/127 ,  H01L23/34 ,  H01L23/38 ,  H01L2924/0002 ,  H01L2924/00

Abstract: A heat source having a device emitting heat, a case protecting and supporting the device, and a thermoelectric element absorbing the heat emitted from the device and dissipating the heat to an outside.

Abstract translation: 具有发热装置的热源，保护和支撑装置的壳体，以及吸收从装置发出的热并将热量散发到外部的热电元件。

公开(公告)号：US07272103B2

公开(公告)日：2007-09-18

申请号：US10751647

申请日：2004-01-06

Applicant: Sung-du Kwon ,  Jun-hyuk Lee ,  Pyong-yong Seong ,  Hyun-cheal Bang ,  Jong-koog Lee ,  Yong-jun Cho

Inventor： Sung-du Kwon ,  Jun-hyuk Lee ,  Pyong-yong Seong ,  Hyun-cheal Bang ,  Jong-koog Lee ,  Yong-jun Cho

IPC: G11B7/00

CPC classification number: G11B7/1263

Abstract: In order to improve the frequency characteristic of a laser power monitor device and the precision of laser power control when low-speed recording is performed, there is provided a laser power monitor device for an optical recording and/or reproducing apparatus, the laser power monitor device including a photo diode unit to receive part of a light emitted from a laser diode and output a current proportional to optical power, and a monitor circuit to receive the current output from the photo diode unit, convert the received current into a voltage, and outputs the voltage to an automatic laser power control circuit, and the photo diode unit includes a plurality of photo diodes connected to the monitor circuit to supply current to the monitor circuit. The laser power monitor device further includes a switch unit, wherein the switch unit is located between the photo diode unit and the monitor circuit to receive a signal on a current recording speed and switch so that the number of photo diodes supplying current to the monitor circuit is reduced as the recording speed is increased.

Abstract translation: 为了提高激光功率监视装置的频率特性和进行低速记录时的激光功率控制的精度，提供了一种用于光学记录和/或再现装置的激光功率监视装置，激光功率监视器 该装置包括：光电二极管单元，用于接收从激光二极管发射的一部分光并输出与​​光功率成比例的电流;以及监测电路，用于接收来自光电二极管单元的电流输出，将接收的电流转换成电压; 将电压输出到自动激光功率控制电路，并且光电二极管单元包括连接到监视器电路的多个光电二极管，以向监控电路提供电流。 所述激光功率监视装置还包括开关单元，其中所述开关单元位于所述光电二极管单元和所述监视器电路之间，以接收当前记录速度的信号并进行切换，使得向所述监视器电路提供电流的光电二极管的数量 随着记录速度的增加而减小。

公开(公告)号：US07206266B2

公开(公告)日：2007-04-17

申请号：US10822868

申请日：2004-04-13

Applicant: Pyong-yong Seong

Inventor： Pyong-yong Seong

IPC: G11B7/00

CPC classification number: G11B7/0903 ,  G11B7/0906 ,  G11B2007/0006

Abstract: An optical pickup, optical recording and/or reproducing apparatus including the same, and a method of realizing a tracking servo that is compatible between different types of optical data storage media. The optical recording and/or reproducing apparatus splits light from a light source into a main beam and four or more sub beams symmetrical with respect to the main beam, which are then emitted on an optical data storage medium, wherein the four or more sub beams include two first sub beams located close to the main beam and two second sub beams located away from the main beam, and detects a tracking error signal by a differential push-pull (DPP) method using detection signals of the main beam and the pair of first sub beams and of the main beam and the pair of second sub beams for ±R/RW and RAM type optical data storage media, respectively. The optical pickup and optical recording and/or reproducing apparatus makes it possible to realize a tracking servo that is compatible between ±R/RW and RAM type optical data storage media having different track pitch dimensions based on DPP.

Abstract translation: 包括其的光学拾取器，光学记录和/或再现装置以及实现在不同类型的光学数据存储介质之间兼容的跟踪伺服的方法。 光学记录和/或再现装置将光从光源分离成主光束和相对于主光束对称的四个或更多个子光束，然后在光学数据存储介质上发射，其中四个或更多个子光束 包括位于主波束附近的两个第一子波束和远离主波束的两个第二子波束，并且通过差分推挽（DPP）方法使用主波束和一对波段的检测信号来检测跟踪误差信号 分别用于±R / RW和RAM型光学数据存储介质的第一子波束和主波束和一对第二子波束。 光学拾取器和光学记录和/或再现装置使得可以实现基于DPP的具有不同轨道间距尺寸的±R / RW和RAM型光学数据存储介质之间兼容的跟踪伺服。