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    • 5. 发明授权
    • Disk clamping apparatus for disk player
    • 磁盘播放机的磁盘夹紧装置
    • US06826772B2
    • 2004-11-30
    • US10263817
    • 2002-10-04
    • Seok-jung KimChong-sam ChungYong-hoon LeeHan-kook Choi
    • Seok-jung KimChong-sam ChungYong-hoon LeeHan-kook Choi
    • G11B17028
    • G11B17/0284
    • A disk clamping apparatus for a disk player includes a turntable for receiving a disk, a disk clamper which clamps the disk placed on the turntable, and first and second magnetic bodies which are mounted in the corresponding turntable and the disk clamper and provide a clamping force to the disk by acting a reciprocal magnetic force on the turntable and the disk clamper. The first and second magnetic bodies are opposite to each other and partially overlap each other. In the disk clamping apparatus having the above structure, the variation in a clamping force caused by the variation in thickness of disks, received by the disk clamping apparatus, is very small. Accordingly, clamping and de-clamping of the disks having different thickness can be smoothly performed.
    • 一种用于盘播放器的盘夹装置包括用于接收盘的转盘,夹持放置在转盘上的盘的盘夹持器,以及安装在相应转台和盘夹持器中的第一和第二磁体,并提供夹紧力 通过对转台和盘夹持器施加相互的磁力来驱动盘。 第一和第二磁体彼此相对并且部分地彼此重叠。 在具有上述结构的盘夹紧装置中,由盘夹紧装置接收的由盘的厚度变化引起的夹紧力的变化非常小。 因此,可以顺利地执行具有不同厚度的盘的夹紧和去夹紧。
    • 6. 发明授权
    • Four-axial driving actuator for optical pickup
    • 用于光学拾取器的四轴驱动执行器
    • US06724696B2
    • 2004-04-20
    • US09938311
    • 2001-08-24
    • Seok-jung KimYong-hoon LeeTae-yong DohSun-mo KimHan-kook Choi
    • Seok-jung KimYong-hoon LeeTae-yong DohSun-mo KimHan-kook Choi
    • G11B700
    • G11B7/0932G11B7/0935G11B7/0956
    • 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.
    • 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。
    • 9. 发明申请
    • Actuator used with an optical pickup
    • 执行器与光学拾音器一起使用
    • US20050190663A1
    • 2005-09-01
    • US11056401
    • 2005-02-14
    • Seok-jung KimYong-hoon LeeSun-mo Kim
    • Seok-jung KimYong-hoon LeeSun-mo Kim
    • G11B7/00G11B7/09G11B7/135
    • G11B7/1374G11B7/0933G11B7/0935G11B2007/0006
    • 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.
    • 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。
    • 10. 发明申请
    • ACTUATOR USED WITH AN OPTICAL PICKUP
    • 使用光学拾取器的执行器
    • US20090016178A1
    • 2009-01-15
    • US12235832
    • 2008-09-23
    • Seok-jung KimYong-hoon LeeSun-mo Kim
    • Seok-jung KimYong-hoon LeeSun-mo Kim
    • G11B7/00
    • G11B7/1374G11B7/0933G11B7/0935G11B2007/0006
    • 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.
    • 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。