公开(公告)号：US20070201323A1

公开(公告)日：2007-08-30

申请号：US11657656

申请日：2007-01-25

申请人： Sang-yol Yoon ,  Dae-jong Jang ,  Young-bin Lee ,  Yong-jae Lee ,  Byung-ryul Ryoo ,  Young-won Lee

发明人： Sang-yol Yoon ,  Dae-jong Jang ,  Young-bin Lee ,  Yong-jae Lee ,  Byung-ryul Ryoo ,  Young-won Lee

IPC分类号： G11B7/00

CPC分类号： G11B7/0935 ,  G11B7/0933 ,  G11B7/0956

摘要： An optical pickup actuator which includes a base, a blade having an objective lens mounted thereon, a plurality of suspensions supporting the blade to be movable with respect to the base and forming an electroconductive path, and a magnetic circuit driving the blade according to a driving signal applied through the respective suspensions. The magnetic circuit includes a magnet fixed to the base, and a fine pattern coil installed on the blade at a position facing the magnet and having a track pattern coil, a focus pattern coil, and a tilt pattern coil independently driven by current applied through the suspensions and providing driving forces in a track direction, a focus direction, and a tilt direction of the blade.

摘要翻译： 一种光学拾取器致动器，包括基座，具有安装在其上的物镜的刀片，支撑刀片以相对于基座可移动并形成导电路径的多个悬架以及根据驾驶驱动刀片的磁路 信号通过相应的悬架施加。 磁路包括固定在基座上的磁体和安装在刀片上的面对磁体的位置的精细图案线圈，并且具有轨道图案线圈，聚焦图案线圈和倾斜图案线圈，独立地由通过 悬架并在叶片的轨道方向，聚焦方向和倾斜方向上提供驱动力。

公开(公告)号：US07663984B2

公开(公告)日：2010-02-16

申请号：US11657656

申请日：2007-01-25

申请人： Sang-yol Yoon ,  Dae-jong Jang ,  Young-bin Lee ,  Yong-jae Lee ,  Byung-ryul Ryoo ,  Young-won Lee

发明人： Sang-yol Yoon ,  Dae-jong Jang ,  Young-bin Lee ,  Yong-jae Lee ,  Byung-ryul Ryoo ,  Young-won Lee

IPC分类号： G11B7/00

CPC分类号： G11B7/0935 ,  G11B7/0933 ,  G11B7/0956

摘要： An optical pickup actuator which includes a base, a blade having an objective lens mounted thereon, a plurality of suspensions supporting the blade to be movable with respect to the base and forming an electroconductive path, and a magnetic circuit driving the blade according to a driving signal applied through the respective suspensions. The magnetic circuit includes a magnet fixed to the base, and a fine pattern coil installed on the blade at a position facing the magnet and having a track pattern coil, a focus pattern coil, and a tilt pattern coil independently driven by current applied through the suspensions and providing driving forces in a track direction, a focus direction, and a tilt direction of the blade.

摘要翻译： 一种光学拾取器致动器，包括基座，具有安装在其上的物镜的刀片，支撑刀片以相对于基座可移动并形成导电路径的多个悬架以及根据驾驶驱动刀片的磁路 信号通过相应的悬架施加。 磁路包括固定在基座上的磁体和安装在刀片上的面对磁体的位置的精细图案线圈，并且具有轨道图案线圈，聚焦图案线圈和倾斜图案线圈，独立地由通过 悬架并在叶片的轨道方向，聚焦方向和倾斜方向上提供驱动力。

公开(公告)号：US20060218569A1

公开(公告)日：2006-09-28

申请号：US11385739

申请日：2006-03-22

申请人： Dae-jong Jang ,  Byung-youn Song ,  Young-bin Lee ,  Byung-ryul Ryoo ,  Pyong-yong Seong ,  Young-won Lee

发明人： Dae-jong Jang ,  Byung-youn Song ,  Young-bin Lee ,  Byung-ryul Ryoo ,  Pyong-yong Seong ,  Young-won Lee

IPC分类号： G11B7/00

CPC分类号： G11B7/0933 ,  G11B7/0932 ,  G11B7/0935 ,  G11B7/0956

摘要： An optical recording and/or reproducing apparatus with an optical pickup actuator having high thrust. The optical pickup actuator may include a lens holder which holds an objective lens and is movably supported by a supporting unit, and a magnetic driving unit which drives the lens holder in a focusing direction, a tracking direction, and/or a tilting direction. The magnetic driving unit includes a surface-triple pole magnet portion and a coil portion. The surface-triple pole magnet portion has a plurality of polarized, i.e., differently magnetized, areas formed by facing sides of two magnets among three magnets. The coil portion includes tracking coils and tilt coils disposed to interact with the polarized areas of the surface-triple pole magnet portion and a focusing coil disposed to interact with a non-polarized area of the surface-triple pole magnet portion.

摘要翻译： 具有高推力的光学拾音器致动器的光学记录和/或再现装置。 光拾取器致动器可以包括保持物镜并由支撑单元可移动地支撑的透镜保持器，以及在聚焦方向，跟踪方向和/或倾斜方向上驱动透镜保持器的磁性驱动单元。 磁驱动单元包括表面三极磁体部分和线圈部分。 表面三极磁体部分具有由三个磁体中的两个磁体的相对侧面形成的多个极化的，即不同的磁化区域。 线圈部分包括跟踪线圈和设置成与表面三极磁体部分的偏振区域相互作用的倾斜线圈和设置成与表面三极磁铁部分的非偏振区域相互作用的聚焦线圈。

公开(公告)号：US07453656B2

公开(公告)日：2008-11-18

申请号：US11385739

申请日：2006-03-22

申请人： Dae-jong Jang ,  Byung-youn Song ,  Young-bin Lee ,  Byung-ryul Ryoo ,  Pyong-yong Seong ,  Young-won Lee

发明人： Dae-jong Jang ,  Byung-youn Song ,  Young-bin Lee ,  Byung-ryul Ryoo ,  Pyong-yong Seong ,  Young-won Lee

IPC分类号： G02B7/02

CPC分类号： G11B7/0933 ,  G11B7/0932 ,  G11B7/0935 ,  G11B7/0956

摘要： An optical recording and/or reproducing apparatus with an optical pickup actuator having high thrust. The optical pickup actuator may include a lens holder which holds an objective lens and is movably supported by a supporting unit, and a magnetic driving unit which drives the lens holder in a focusing direction, a tracking direction, and/or a tilting direction. The magnetic driving unit includes a surface-triple pole magnet portion and a coil portion. The surface-triple pole magnet portion has a plurality of polarized, i.e., differently magnetized, areas formed by facing sides of two magnets among three magnets. The coil portion includes tracking coils and tilt coils disposed to interact with the polarized areas of the surface-triple pole magnet portion and a focusing coil disposed to interact with a non-polarized area of the surface-triple pole magnet portion.

摘要翻译： 具有高推力的光学拾音器致动器的光学记录和/或再现装置。 光拾取器致动器可以包括保持物镜并由支撑单元可移动地支撑的透镜保持器，以及在聚焦方向，跟踪方向和/或倾斜方向上驱动透镜保持器的磁性驱动单元。 磁驱动单元包括表面三极磁体部分和线圈部分。 表面三极磁体部分具有由三个磁体中的两个磁体的相对侧面形成的多个极化的，即不同的磁化区域。 线圈部分包括跟踪线圈和设置成与表面 - 三极磁体部分的偏振区域相互作用的倾斜线圈和设置成与表面三极磁铁部分的非偏振区域相互作用的聚焦线圈。

公开(公告)号：US6167004A

公开(公告)日：2000-12-26

申请号：US433296

申请日：1999-11-03

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

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

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

CPC分类号： G11B7/131 ,  G11B7/094 ,  G11B7/0943 ,  G11B7/133 ,  G11B7/1353

摘要： An error signal detecting apparatus for an optical pickup employing a hologram grating, including a sensing lens for focusing light reflected from a recording medium, a hologram grating having first through fourth pattern regions arranged clockwise in a 2.times.2 matrix arrangement, for diffracting light incident from the sensing lens in different directions, wherein the first through fourth pattern regions a, b, c and d are formed such that a first focus of the +1st-order diffracted beams diffracted by the first and third pattern regions is relatively farther from the sensing lens than a second focus of the +1st-order diffracted beams diffracted by the second and fourth pattern regions, a photodetector disposed between the first and second focuses and having first through fourth light receiving units, for receiving the beams diffracted by the first through fourth pattern regions and independently photoelectrically converting the same, and a signal operation unit for detecting a focus error signal and/or a track error signal from detection signals of the light receiving parts. The error signal detecting apparatus can suppress generation of an offset of a focus error signal due to a change in the wavelength of a light source and an offsets of the focus error signal and track offset signal due to deviations of the photodetector.

摘要翻译： 一种用于采用全息光栅的光学拾取器的误差信号检测装置，包括用于聚焦从记录介质反射的光的感测透镜，具有以2x2矩阵排列顺时针排列的第一至第四图案区域的全息图光栅，用于衍射从 感光透镜，其中第一至第四图案区域a，b，c和d被形成为使得由第一和第三图案区域衍射的+ 1级衍射光束的第一焦点相对较远离感测透镜 比由第二和第四图案区域衍射的+ 1级衍射光束的第二焦点，设置在第一和第二焦点之间并具有第一至第四光接收单元的光电检测器，用于接收由第一至第四图案衍射的光束 区域并独立地对其进行光电转换;以及信号操作单元，用于检测聚焦误差 信号和/或来自光接收部分的检测信号的轨道误差信号。 误差信号检测装置可以抑制由于光源的波长的变化引起的聚焦误差信号的偏移的产生以及由于光电检测器的偏差引起的聚焦误差信号和光道偏移信号的偏移。

公开(公告)号：US06381207B1

公开(公告)日：2002-04-30

申请号：US09410627

申请日：1999-10-01

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

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

IPC分类号： G11B3302

CPC分类号： G11B7/22

摘要： 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.

摘要翻译： 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：US06636464B1

公开(公告)日：2003-10-21

申请号：US09588224

申请日：2000-06-06

申请人： Yong-jae Lee ,  Pyong-yong Seong ,  Jang-hoon Yoo ,  Byung-ryul Ryoo ,  Yong-ki Son

发明人： Yong-jae Lee ,  Pyong-yong Seong ,  Jang-hoon Yoo ,  Byung-ryul Ryoo ,  Yong-ki Son

IPC分类号： G11B700

CPC分类号： G11B7/1353 ,  G11B7/0901 ,  G11B7/0912 ,  G11B7/094 ,  G11B7/131

摘要： An optical pickup device employing a signal detection unit including a hologram element having a plurality of pattern regions for diffracting and/or focusing light reflected and incident from a recording medium, a photodetector having a plurality of light receiving regions for receiving and photoelectrically converting the light diffracted by the hologram element and a signal operation unit for generating a focus error signal and/or a track error signal from a signal detected from the photodetector. The optical pickup device can implement a stable servo operation even at deviations of the photodetector, a change in the wavelength of light emitted from the light source, and/or shift of focusing means such as an objective lens, and can record and/or reproduce high-density information on/from the recording medium.

摘要翻译： 一种采用信号检测单元的光学拾取装置，包括具有多个图案区域的全息元件，用于衍射和/或聚焦从记录介质反射和入射的光;具有多个光接收区域的光电检测器，用于接收和光电转换光 由全息元件衍射，以及用于从从光电检测器检测的信号产生聚焦误差信号和/或轨道误差信号的信号操作单元。 光拾取装置即使在光电检测器的偏差，光源发射的光的波长变化和/或诸如物镜的聚焦装置的移动中也能够实现稳定的伺服操作，并且可以记录和/或再现 来自记录介质的高密度信息。

公开(公告)号：US06587481B1

公开(公告)日：2003-07-01

申请号：US09552621

申请日：2000-04-19

申请人： Pyong-yong Seong ,  Yong-jae Lee ,  Byung-ryul Ryoo ,  Yong-ki Son

发明人： Pyong-yong Seong ,  Yong-jae Lee ,  Byung-ryul Ryoo ,  Yong-ki Son

IPC分类号： H01S310

CPC分类号： G11B7/1353 ,  G11B7/0903 ,  G11B7/0909 ,  G11B7/123 ,  G11B7/127 ,  G11B7/131 ,  G11B7/1356 ,  G11B7/1362 ,  G11B7/22 ,  G11B2007/0006

摘要： A light emitting module packaging two light sources emitting two light beams of different wavelengths, and a compatible optical pickup device adopting the module are provided. The light emitting module includes a base, first and second light sources installed on the base, for emitting laser beams in different wavelength regions, a beam splitter and a monitoring photodetector for monitoring the optical outputs of the first and second light sources by receiving the beams emitted from the first and second light sources and split from the beam splitter in one direction. Also, another light emitting module includes a substrate, first and second light sources installed on the substrate for emitting laser beams of first and second wavelengths from both lateral sides thereof, a reflection member for reflecting the laser beam emitted from one lateral side of each of the first and second light sources to proceed in one direction, and first and second monitoring photodetectors for monitoring optical outputs of the first and second light sources. The compatible optical pickup device includes the light emitting module having the above structure, an objective lens for focusing first and second laser beams on an optical recording medium, an optical path converting device, a grating arranged on an optical path between the light emitting module and the optical path converting device for diffracting and transmitting an incident light, a photodetector.

摘要翻译： 本发明提供一种封装发射两个不同波长光束的两个光源的发光模块，以及采用该模块的兼容的光拾取装置。 发光模块包括安装在基座上的用于发射不同波长区域的激光束的基座，第一和第二光源，分束器和监视光电检测器，用于通过接收光束来监测第一和第二光源的光输出 从第一和第二光源发射并沿一个方向从分束器分离。 此外，另一发光模块包括基板，安装在基板上的第一和第二光源，用于从其两个侧面发射第一和第二波长的激光束;反射构件，用于反射从每个的一个侧面发射的激光束 第一和第二光源沿一个方向进行，以及第一和第二监视光电检测器，用于监视第一和第二光源的光输出。 兼容的光学拾取装置包括具有上述结构的发光模块，用于将第一和第二激光束聚焦在光学记录介质上的物镜，光路转换装置，布置在发光模块与发光模块之间的光路上的光栅 用于衍射和透射入射光的光路转换装置，光电检测器。

公开(公告)号：US06345031B1

公开(公告)日：2002-02-05

申请号：US08661733

申请日：1996-06-11

申请人： Byung-ryul Ryoo ,  Dae-hwan Kim

发明人： Byung-ryul Ryoo ,  Dae-hwan Kim

IPC分类号： G11B709

CPC分类号： G11B7/0933 ,  G11B7/093 ,  G11B7/0932

摘要： An object-lens driving device for an optical pickup and which employs such a fine pattern coil as is used in a compact disk player or a laser disk player. The object-lens driving device for an optical pickup eliminates the rolling phenomenon caused when a wire having a circular cross-section is used as a supporting member. Focusing and tracking are controlled more stably, since a plurality of plate springs is used for elastically biasing the horizontal or vertical movement of a driving portion body.

摘要翻译： 一种用于光学拾取器的物镜驱动装置，其采用如在光盘播放器或激光盘播放器中使用的精细图案线圈。 用于光学拾取器的物镜驱动装置消除了当使用具有圆形横截面的线作为支撑构件时引起的滚动现象。 由于多个板簧用于弹性偏置驱动部分主体的水平或垂直运动，因此更稳定地控制聚焦和跟踪。

公开(公告)号：US07266055B2

公开(公告)日：2007-09-04

申请号：US10849190

申请日：2004-05-20

申请人： Won-ik Cho ,  Byung-ryul Ryoo ,  Young-pil Park ,  No-cheol Park

发明人： Won-ik Cho ,  Byung-ryul Ryoo ,  Young-pil Park ,  No-cheol Park

IPC分类号： G11B7/00

CPC分类号： G11B7/0933 ,  G11B7/0932 ,  G11B7/0935

摘要： An optical pickup actuator and optical disc drive using the same. The optical pickup actuator includes a blade holding an objective lens and supported on a base by a plurality of suspension wires so that it is elastically movable, a magnetic element positioned on the base, and a coil positioned horizontally on the blade to generate electromagnetic force in a focusing direction and/or a tilting direction through interaction with the magnetic element. The coil is divided into a plurality of subcoils separated vertically from one another.

摘要翻译： 光拾取器致动器和使用其的光盘驱动器。 光学拾取器致动器包括：保持物镜的刀片，并且通过多个悬挂线支撑在基座上，使得其可弹性移动;定位在基座上的磁性元件;以及水平地定位在刀片上的线圈，以产生电磁力 通过与磁性元件相互作用的聚焦方向和/或倾斜方向。 线圈被分成彼此垂直分离的多个子线圈。