公开(公告)号：US20090016178A1

公开(公告)日：2009-01-15

申请号：US12235832

申请日：2008-09-23

申请人： Seok-jung Kim ,  Yong-hoon Lee ,  Sun-mo Kim

发明人： Seok-jung Kim ,  Yong-hoon Lee ,  Sun-mo Kim

IPC分类号： G11B7/00

CPC分类号： G11B7/1374 ,  G11B7/0933 ,  G11B7/0935 ,  G11B2007/0006

摘要： An actuator used with an optical pickup includes: a base on which a holder is fixed; a lens holder in which a plurality of installation holes are formed such that a plurality of objective lenses to record and/or reproduce optical discs having different recording densities are installed at different heights; a support member, which movably supports the lens holder, having one end coupled to the lens holder and the other end coupled to the holder; and a magnetic circuit which drives the lens holder in focusing and tracking directions. The plurality of installation holes include a first installation hole in which a first objective lens for at least one type of low density optical disc is installed, and a second installation hole in which a second objective lens for a higher density optical disc than the low density optical disc is installed. When a working distance of the first objective lens for the low density optical disc installed in the first installation hole is represented as WD1, and a working distance of the second objective lens for the high density optical disc installed in the second installation hole is represented as WD2, the first and second installation holes are provided so that the first and second objective lenses are installed to satisfy the Equation: WD1≧WD2, a separation distance between the optical disc and the second objective lens=WD2+α where, α=|WD1−WD2|×(0.1˜1.0). The second installation hole is located in a more outer circumference of the optical disc than the first installation hole.

摘要翻译： 与光学拾取器一起使用的致动器包括：固定有保持器的基座; 其中形成多个安装孔的透镜保持器，使得用于记录和/或再现具有不同记录密度的光盘的多个物镜安装在不同的高度; 支撑构件，其可移动地支撑透镜保持器，其一端联接到透镜保持器，另一端联接到保持器; 以及在聚焦和跟踪方向上驱动透镜架的磁路。 多个安装孔包括：第一安装孔，其中安装有用于至少一种类型的低密度光盘的第一物镜;以及第二安装孔，其中用于高密度光盘的第二物镜低于低密度 安装光盘。 当安装在第一安装孔中的低密度光盘的第一物镜的工作距离表示为WD1时，将安装在第二安装孔中的高密度光盘的第二物镜的工作距离表示为 WD2，第一和第二安装孔被设置成使得第一和第二物镜被安装以满足等式：<？in-line-formula description =“In-line Formulas”end =“lead”？> WD1> = WD2，<？in-line-formula description =“In-line Formulas”end =“tail”？>光盘与第二物镜之间的间隔距离= WD2 + alpha其中，α= | WD1-WD2 | x （0.1〜1.0）。 第二安装孔位于光盘的比第一安装孔更外侧的圆周上。

公开(公告)号：US06724696B2

公开(公告)日：2004-04-20

申请号：US09938311

申请日：2001-08-24

申请人： Seok-jung Kim ,  Yong-hoon Lee ,  Tae-yong Doh ,  Sun-mo Kim ,  Han-kook Choi

发明人： Seok-jung Kim ,  Yong-hoon Lee ,  Tae-yong Doh ,  Sun-mo Kim ,  Han-kook Choi

IPC分类号： G11B700

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

摘要： A four-axial driving actuator for an optical pickup with improved bobbin dynamic characteristics, in which the winding starting ports for a focus coil, tracking coil, and tilt coil are separate from one another, and the winding end ports thereof are combined as a common ground. The four-axial driving actuator includes: a base; a holder fixed on the base; a bobbin to which an objective lens is fixed; spring wires connected between the bobbin and the holder; and a magnetic driving unit driving the bobbin in the focus, track, or tilt direction with a focus coil, a tracking coil, and a tilt coil, wherein the magnetic driving unit comprises a circuit unit including winding starting ports for the focus coil, tracking coil, and tilt coil, and a common ground port at which winding end ports for the focus coil, tracking coil, and tilt coil are grounded, and the circuit unit applies a voltage to the tracking coil, tracking coil, and tilt coil. In the four-axial driving actuator for an optical pickup, the bobbin and the holder are connected with only four wires serving as electric wires, so that moving characteristics of the bobbin are improved and the assembly time is reduced.

摘要翻译： 一种用于具有改进的筒管动态特性的光学拾取器的四轴驱动致动器，其中用于聚焦线圈，跟踪线圈和倾斜线圈的绕组起始端口彼此分离，并且其绕组端口被组合为公共 地面。 四轴驱动致动器包括：基座; 固定在基座上的支架; 固定有物镜的筒管; 连接在线轴和支架之间的弹簧线; 以及磁性驱动单元，其利用聚焦线圈，跟踪线圈和倾斜线圈以焦点，轨道或倾斜方向驱动线轴，其中所述磁性驱动单元包括电路单元，所述电路单元包括用于所述聚焦线圈的绕组起始端口，跟踪 线圈和倾斜线圈以及用于聚焦线圈，跟踪线圈和倾斜线圈的绕组端口接地的公共接地端口，并且电路单元向跟踪线圈，跟踪线圈和倾斜线圈施加电压。 在用于光学拾取器的四轴驱动致动器中，线轴和保持器仅用作电线的四根线连接，从而提高了线轴的移动特性，并减少了组装时间。

公开(公告)号：US07219359B2

公开(公告)日：2007-05-15

申请号：US11019992

申请日：2004-12-23

申请人： Seok-jung Kim ,  Yong-hoon Lee ,  Sun-mo Kim

发明人： Seok-jung Kim ,  Yong-hoon Lee ,  Sun-mo Kim

IPC分类号： G11B7/12

CPC分类号： G11B7/1374 ,  G11B7/0933 ,  G11B7/0935 ,  G11B2007/0006

摘要： An actuator for an optical pickup having a base on which a holder is fixed, a bobbin, a support member, and a magnetic circuit. Pluralities of installation holes are formed in the bobbin such that a plurality of objective lenses to record and/or reproduce optical discs having different recording densities are installed at different heights. The support member has one end coupled to the bobbin and the other end coupled to the holder movably supports the bobbin. The magnetic circuit drives the bobbin in focusing and tracking directions. The magnetic circuit is divided into a first magnetic circuit to drive the objective lenses in the focusing direction, and a second magnetic circuit to drive the objective lenses in the tracking direction, thereby reducing the weight of a moving portion.

摘要翻译： 一种用于光学拾取器的致动器，其具有固定有保持器的基座，线轴，支撑构件和磁路。 多个安装孔形成在筒管中，使得用于记录和/或再现具有不同记录密度的光盘的多个物镜安装在不同的高度。 支撑构件具有联接到线轴的一端，并且联接到保持器的另一端可移动地支撑线轴。 磁路在聚焦和跟踪方向上驱动线轴。 磁路被分成在聚焦方向上驱动物镜的第一磁路和在跟踪方向上驱动物镜的第二磁路，从而减小移动部分的重量。

公开(公告)号：US07178156B2

公开(公告)日：2007-02-13

申请号：US11240452

申请日：2005-10-03

申请人： Han-kook Choi ,  Sun-mo Kim ,  Yong-hoon Lee ,  Chong-sam Chung ,  Seok-jung Kim

发明人： Han-kook Choi ,  Sun-mo Kim ,  Yong-hoon Lee ,  Chong-sam Chung ,  Seok-jung Kim

IPC分类号： G11B23/03

CPC分类号： G11B17/0432 ,  G11B23/38 ,  G11B33/0411

摘要： A disk cartridge has a reflection portion to identify a kind of a disk in the disk cartridge. A disk drive apparatus has an optical detector to identify the kind of the disk by irradiating a beam to the reflection portion and detecting the reflected beam. The disk cartridge and the disk drive apparatus provide identification marks for identifying the kind of the disk by varying the angle and amount of a beam reflected from the reflection portions on the disk cartridge. Therefore, the kind of a disk and the type of a disk format are identified as well as the storage capacity of the disk.

摘要翻译： 盘盒具有用于识别盘盒中盘的种类的反射部分。 磁盘驱动装置具有光学检测器，用于通过将光束照射到反射部分并检测反射光束来识别光盘的种类。 盘盒和盘驱动装置通过改变从盘盒上的反射部分反射的光束的角度和量来提供用于识别盘的种类的识别标记。 因此，识别磁盘的种类和磁盘格式的类型以及磁盘的存储容量。

公开(公告)号：US20050190663A1

公开(公告)日：2005-09-01

申请号：US11056401

申请日：2005-02-14

申请人： Seok-jung Kim ,  Yong-hoon Lee ,  Sun-mo Kim

发明人： Seok-jung Kim ,  Yong-hoon Lee ,  Sun-mo Kim

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

CPC分类号： G11B7/1374 ,  G11B7/0933 ,  G11B7/0935 ,  G11B2007/0006

摘要： An actuator used with an optical pickup includes: a base on which a holder is fixed; a lens holder in which a plurality of installation holes are formed such that a plurality of objective lenses to record and/or reproduce optical discs having different recording densities are installed at different heights; a support member, which movably supports the lens holder, having one end coupled to the lens holder and the other end coupled to the holder; and a magnetic circuit which drives the lens holder in focusing and tracking directions. The plurality of installation holes include a first installation hole in which a first objective lens for at least one type of low density optical disc is installed, and a second installation hole in which a second objective lens for a higher density optical disc than the low density optical disc is installed. When a working distance of the first objective lens for the low density optical disc installed in the first installation hole is represented as WD1, and a working distance of the second objective lens for the high density optical disc installed in the second installation hole is represented as WD2, the first and second installation holes are provided so that the first and second objective lenses are installed to satisfy the Equation: WD1≧WD2, a separation distance between the optical disc and the second objective lens=WD2+αwhere, α=|WD1−WD2|×(0.1˜1.0). The second installation hole is located in a more outer circumference of the optical disc than the first installation hole.

摘要翻译： 与光学拾取器一起使用的致动器包括：固定有保持器的基座; 其中形成多个安装孔的透镜保持器，使得用于记录和/或再现具有不同记录密度的光盘的多个物镜安装在不同的高度; 支撑构件，其可移动地支撑透镜保持器，其一端联接到透镜保持器，另一端联接到保持器; 以及在聚焦和跟踪方向上驱动透镜架的磁路。 多个安装孔包括：第一安装孔，其中安装有用于至少一种类型的低密度光盘的第一物镜;以及第二安装孔，其中用于高密度光盘的第二物镜低于低密度 安装光盘。 当安装在第一安装孔中的低密度光盘的第一物镜的工作距离表示为WD1时，将安装在第二安装孔中的高密度光盘的第二物镜的工作距离表示为 WD2，第一和第二安装孔被设置成使得第一和第二物镜被安装以满足等式：<？in-line-formula description =“In-line Formulas”end =“lead”？> WD1> = WD2，<？in-line-formula description =“In-line Formulas”end =“tail”？>光盘与第二物镜之间的间隔距离= WD2 + alphawhere，alpha = | WD1-WD2 | x（ 0.1〜1.0）。 第二安装孔位于光盘的比第一安装孔更外侧的圆周上。

公开(公告)号：US07835253B2

公开(公告)日：2010-11-16

申请号：US12235832

申请日：2008-09-23

申请人： Seok-jung Kim ,  Yong-hoon Lee ,  Sun-mo Kim

发明人： Seok-jung Kim ,  Yong-hoon Lee ,  Sun-mo Kim

IPC分类号： G11B7/00

CPC分类号： G11B7/1374 ,  G11B7/0933 ,  G11B7/0935 ,  G11B2007/0006

摘要： An actuator used with an optical pickup includes: a base on which a holder is fixed; a lens holder in which a plurality of installation holes are formed such that a plurality of objective lenses to record and/or reproduce optical discs having different recording densities are installed at different heights; a support member, which movably supports the lens holder, having one end coupled to the lens holder and the other end coupled to the holder; and a magnetic circuit which drives the lens holder in focusing and tracking directions. The plurality of installation holes include a first installation hole in which a first objective lens for at least one type of low density optical disc is installed, and a second installation hole in which a second objective lens for a higher density optical disc than the low density optical disc is installed. When a working distance of the first objective lens for the low density optical disc installed in the first installation hole is represented as WD1, and a working distance of the second objective lens for the high density optical disc installed in the second installation hole is represented as WD2, the first and second installation holes are provided so that the first and second objective lenses are installed to satisfy the Equation: WD1≧WD2, a separation distance between the optical disc and the second objective lens=WD2+α where, α=|WD1−WD2|×(0.1˜1.0). The second installation hole is located in a more outer circumference of the optical disc than the first installation hole.

摘要翻译： 与光学拾取器一起使用的致动器包括：固定有保持器的基座; 其中形成多个安装孔的透镜保持器，使得用于记录和/或再现具有不同记录密度的光盘的多个物镜安装在不同的高度; 支撑构件，其可移动地支撑透镜保持器，其一端联接到透镜保持器，另一端联接到保持器; 以及在聚焦和跟踪方向上驱动透镜架的磁路。 多个安装孔包括：第一安装孔，其中安装有用于至少一种类型的低密度光盘的第一物镜;以及第二安装孔，其中用于高密度光盘的第二物镜低于低密度 安装光盘。 当安装在第一安装孔中的低密度光盘的第一物镜的工作距离表示为WD1时，将安装在第二安装孔中的高密度光盘的第二物镜的工作距离表示为 WD2，第一和第二安装孔被设置成使得第一和第二物镜被安装以满足等式：WD1≥DW2，光盘和第二物镜之间的间隔距离= WD2 +α，其中α= | WD1-WD2 |×（0.1〜1.0）。 第二安装孔位于光盘的比第一安装孔更外侧的圆周上。

公开(公告)号：US07458086B2

公开(公告)日：2008-11-25

申请号：US11056401

申请日：2005-02-14

申请人： Seok-Jung Kim ,  Yong-hoon Lee ,  Sun-mo Kim

发明人： Seok-Jung Kim ,  Yong-hoon Lee ,  Sun-mo Kim

IPC分类号： G11B7/085

CPC分类号： G11B7/1374 ,  G11B7/0933 ,  G11B7/0935 ,  G11B2007/0006

摘要： An actuator used with an optical pickup includes: a base on which a holder is fixed; a lens holder in which a plurality of installation holes are formed such that a plurality of objective lenses to record and/or reproduce optical discs having different recording densities are installed at different heights; a support member, which movably supports the lens holder, having one end coupled to the lens holder and the other end coupled to the holder; and a magnetic circuit which drives the lens holder in focusing and tracking directions. The plurality of installation holes include a first installation hole in which a first objective lens for at least one type of low density optical disc is installed, and a second installation hole in which a second objective lens for a higher density optical disc than the low density optical disc is installed. When a working distance of the first objective lens for the low density optical disc installed in the first installation hole is represented as WD1, and a working distance of the second objective lens for the high density optical disc installed in the second installation hole is represented as WD2, the first and second installation holes are provided so that the first and second objective lenses are installed to satisfy the Equation: WD1>WD2, a separation distance between the optical disc and the second objective lens=WD2+α, where, α=IWD1−WD2|×(0.1-1.0). The second installation hole is located in a more outer circumference of the optical disc than the first installation hole.

摘要翻译： 与光学拾取器一起使用的致动器包括：保持器固定在其上的基座; 其中形成多个安装孔的透镜保持器，使得用于记录和/或再现具有不同记录密度的光盘的多个物镜安装在不同的高度; 支撑构件，其可移动地支撑透镜保持器，其一端联接到透镜保持器，另一端联接到保持器; 以及在聚焦和跟踪方向上驱动透镜架的磁路。 多个安装孔包括：第一安装孔，其中安装有用于至少一种类型的低密度光盘的第一物镜;以及第二安装孔，其中用于高密度光盘的第二物镜低于低密度 安装光盘。 当安装在第一安装孔中的用于低密度光盘的第一物镜的工作距离表示为WD 1时，并且表示安装在第二安装孔中的用于高密度光盘的第二物镜的工作距离 作为WD2，设置第一和第二安装孔，使得安装第一和第二物镜以满足等式：WD 1> WD 2，光盘和第二物镜之间的间隔距离= WD2 + alpha ，其中α= IWD 1 -WD 2 | x（0.1-1.0）。 第二安装孔位于光盘的比第一安装孔更外侧的圆周上。

公开(公告)号：US07043744B2

公开(公告)日：2006-05-09

申请号：US10272283

申请日：2002-10-17

申请人： Han-kook Choi ,  Sun-mo Kim ,  Yong-hoon Lee ,  Chong-sam Chung ,  Seok-jung Kim

发明人： Han-kook Choi ,  Sun-mo Kim ,  Yong-hoon Lee ,  Chong-sam Chung ,  Seok-jung Kim

IPC分类号： G11B23/03

CPC分类号： G11B17/0432 ,  G11B23/38 ,  G11B33/0411

摘要： A disk cartridge has a reflection portion to identify a kind of a disk in the disk cartridge. A disk drive apparatus has an optical detector to identify the kind of the disk by irradiating a beam to the reflection portion and detecting the reflected beam. The disk cartridge and the disk drive apparatus provide identification marks for identifying the kind of the disk by varying the angle and amount of a beam reflected from the reflection portions on the disk cartridge. Therefore, the kind of a disk and the type of a disk format are identified as well as the storage capacity of the disk.

公开(公告)号：US20060064714A1

公开(公告)日：2006-03-23

申请号：US11240452

申请日：2005-10-03

申请人： Han-kook Choi ,  Sun-mo Kim ,  Yong-hoon Lee ,  Chong-sam Chung ,  Seok-jung Kim

发明人： Han-kook Choi ,  Sun-mo Kim ,  Yong-hoon Lee ,  Chong-sam Chung ,  Seok-jung Kim

IPC分类号： G11B23/03

CPC分类号： G11B17/0432 ,  G11B23/38 ,  G11B33/0411

摘要： A disk cartridge has a reflection portion to identify a kind of a disk in the disk cartridge. A disk drive apparatus has an optical detector to identify the kind of the disk by irradiating a beam to the reflection portion and detecting the reflected beam. The disk cartridge and the disk drive apparatus provide identification marks for identifying the kind of the disk by varying the angle and amount of a beam reflected from the reflection portions on the disk cartridge. Therefore, the kind of a disk and the type of a disk format are identified as well as the storage capacity of the disk.

摘要翻译： 盘盒具有用于识别盘盒中盘的种类的反射部分。 磁盘驱动装置具有光学检测器，用于通过将光束照射到反射部分并检测反射光束来识别光盘的种类。 盘盒和盘驱动装置通过改变从盘盒上的反射部分反射的光束的角度和量来提供用于识别盘的种类的识别标记。 因此，识别磁盘的种类和磁盘格式的类型以及磁盘的存储容量。

公开(公告)号：US20050105408A1

公开(公告)日：2005-05-19

申请号：US11019992

申请日：2004-12-23

申请人： Seok-jung Kim ,  Yong-hoon Lee ,  Sun-mo Kim

发明人： Seok-jung Kim ,  Yong-hoon Lee ,  Sun-mo Kim

IPC分类号： G11B7/085 ,  G11B7/00 ,  G11B7/09 ,  G11B7/135

CPC分类号： G11B7/1374 ,  G11B7/0933 ,  G11B7/0935 ,  G11B2007/0006

摘要： An actuator for an optical pickup having a base on which a holder is fixed, a bobbin, a support member, and a magnetic circuit. Pluralities of installation holes are formed in the bobbin such that a plurality of objective lenses to record and/or reproduce optical discs having different recording densities are installed at different heights. The support member has one end coupled to the bobbin and the other end coupled to the holder movably supports the bobbin. The magnetic circuit drives the bobbin in focusing and tracking directions. The magnetic circuit is divided into a first magnetic circuit to drive the objective lenses in the focusing direction, and a second magnetic circuit to drive the objective lenses in the tracking direction, thereby reducing the weight of a moving portion.

摘要翻译： 一种用于光学拾取器的致动器，其具有固定有保持器的基座，线轴，支撑构件和磁路。 多个安装孔形成在筒管中，使得用于记录和/或再现具有不同记录密度的光盘的多个物镜安装在不同的高度。 支撑构件具有联接到线轴的一端，并且联接到保持器的另一端可移动地支撑线轴。 磁路在聚焦和跟踪方向上驱动线轴。 磁路被分成在聚焦方向上驱动物镜的第一磁路和在跟踪方向上驱动物镜的第二磁路，从而减小移动部分的重量。