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    • 61. 发明授权
    • Disk cartridge to protect an information area of a disk from being contaminated
    • 磁盘盒,用于保护磁盘的信息区域免受污染
    • US07124423B2
    • 2006-10-17
    • US10369130
    • 2003-02-20
    • Jae-yong EumHong-kyun YimYong-hoon LeeHan-kook ChoiChong-sam ChungTakizawa TeruyukiSaji Yoshito
    • Jae-yong EumHong-kyun YimYong-hoon LeeHan-kook ChoiChong-sam ChungTakizawa TeruyukiSaji Yoshito
    • G11B23/03
    • G11B23/0308
    • A disk cartridge includes a lower case having an opening formed thereon, an upper case installed at the lower case to be capable of being open and shut while pivoting, to accommodate a disk therebetween, a shutter installed at the lower case to be capable of sliding and opening and shutting the opening hole, a close covering member having an inclined surface installed at the shutter to be capable of sliding, closely contacting a non-information area disposed at an inner circumference of the disk when the shutter is closed, and being separated from the non-information area disposed at the inner circumference of the disk when the shutter is open. Thus, when the shutter is closed, introduction of dust is prevented so that the possibility of the information area of the disk being contaminated is lowered. Also, since the disk is fixed between the upper and lower cases, while the disk is carried, noise and damage can be reduced.
    • 磁盘盒包括一个形成在其上的开口的下壳体,上壳体安装在下壳体上以能够在枢转时打开和关闭,以容纳其间的盘;安装在下壳体上以便滑动的闸板 并且打开和关闭所述开孔;紧盖件,其具有安装在所述闸门处以能够滑动的倾斜表面,当所述闸门关闭时,与所述盘的内周设置的非信息区域紧密接触; 从快门打开时设置在盘的内周的非信息区域。 因此,当快门关闭时,防止灰尘的引入,使得盘的信息区域被污染的可能性降低。 此外,由于盘被固定在上壳体和下壳体之间,而在托盘的作用下,可以降低噪声和损坏。
    • 65. 发明申请
    • Actuator used with an optical pickup
    • 执行器与光学拾音器一起使用
    • US20050105408A1
    • 2005-05-19
    • US11019992
    • 2004-12-23
    • Seok-jung KimYong-hoon LeeSun-mo Kim
    • Seok-jung KimYong-hoon LeeSun-mo Kim
    • G11B7/085G11B7/00G11B7/09G11B7/135
    • G11B7/1374G11B7/0933G11B7/0935G11B2007/0006
    • 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.
    • 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。
    • 67. 发明授权
    • Swing arm driving type optical recording/reproducing apparatus
    • 摆臂驱动型光记录/重放装置
    • US06590853B1
    • 2003-07-08
    • US09281230
    • 1999-03-30
    • Yong-hoon LeeChul-woo LeeChong-sam ChungKun-ho Cho
    • Yong-hoon LeeChul-woo LeeChong-sam ChungKun-ho Cho
    • G11B7085
    • G11B7/122G11B7/08576G11B7/08594G11B7/14G11B7/24038
    • A swing arm driving type optical recording/reproducing apparatus includes a base, at least one optical disk rotatably installed on the base, both sides of which are information recording surfaces and a plurality of optical pickups which are equal in number to the information recording surfaces so as to form light spots on the respective information recording surfaces of the optical disk. Each optical pickup includes a light source for irradiating light. The apparatus also includes optical path changing units respectively arranged on optical paths between the light sources and respective ones of the information recording surfaces for changing the traveling paths of the lights and objective lenses arranged between the optical path changing units and the respective information recording surfaces for condensing incident light on the respective information recording surfaces. Photodetectors receive the lights reflected from the respective information recording surfaces and incident via the respective objective lenses and the optical path changing units. A swing member includes a mount on which the light sources, the optical path changing units and the photodetectors are installed. A plurality of swing arms extend from the mount. A suspension has one end which is installed on a surface of each swing arm and is adjacent to the respective information recording surface for elastically biasing the other end. A slider is installed at the other end of the suspension, which contacts the respective information recording surface by the elastic bias of the suspension and into which the respective objective lens is loaded. A supporting unit is interposed between the base and the mount for supporting the swing member to be reciprocally rotatable centering around one hinge point on the base and a magnetic driver for reciprocally rotating the swing member.
    • 摇臂驱动型光学记录/再现装置包括基座,至少一个可旋转地安装在基座上的光盘,其两侧是信息记录表面和与信息记录表面相等的多个光学拾取器 以便在光盘的相应信息记录表面上形成光斑。 每个光学拾取器包括用于照射光的光源。 该装置还包括光路改变单元,其分别设置在光源和信息记录表面之间的光路上,用于改变布置在光路改变单元和各个信息记录表面之间的光和物镜的行进路径, 将入射光聚光在相应的信息记录表面上。 光检测器接收从相应的信息记录表面反射并经由各个物镜和光路改变单元入射的光。 摆动构件包括其上安装有光源,光路改变单元和光电检测器的安装件。 多个摆臂从支座延伸。 悬架的一端安装在每个摆臂的表面上,并且与相应的信息记录表面相邻以弹性地偏压另一端。 滑块安装在悬架的另一端,其通过悬架的弹性偏置与相应的信息记录表面接触,并且相应的物镜被加载到该悬架中。 支撑单元插入在基座和支架之间,用于支撑摆动构件以使基座上的一个铰链点为中心往复旋转,以及用于使摆动构件往复旋转的磁性驱动器。
    • 68. 发明授权
    • Pickup actuator
    • 拾取执行器
    • US06584047B1
    • 2003-06-24
    • US09442460
    • 1999-11-18
    • Seok-jung KimByung-ryul RyooYong-ki SonYong-hoon Lee
    • Seok-jung KimByung-ryul RyooYong-ki SonYong-hoon Lee
    • G11B700
    • G11B7/0935G11B7/093G11B7/0933
    • A pickup actuator capable of significantly reducing rolling of the area, including: a pickup base, a lens holder having an objective lens mounted thereon, and lens holder driving means for driving the lens holder in directions for focusing and tracking on the pickup base. The lens holder driving means includes at least one magnet, a yoke for concentrating the magnetic flux of the magnet in the direction of the magnetic flux, and a driving coil having a focusing coil and a pair of tracking coils positioned between the magnet and the yoke. The respective widths of the magnet and the yoke are set at a rate of 1:0.8-1.2. Accordingly, the uniform magnetic flux area of the magnetic flux can be widely distributed in the width's direction of the yoke. Further, the magnet is attached to one side of one yoke while being slightly lowered thereon, so that the center of the magnetic flux of the magnet is downwardly moved from its initial position to a distance corresponding to 4-12% of the height of the magnet, and the center line of the magnetic flux of the magnet and the center line of the focusing coil are aligned with each other, exactly. Further, the width of the magnet and the gap between the pair of tracking coils are set at a rate of 1:0.6-0.9. Accordingly, the portions of the pair of tracking coils intersecting the effective magnetic flux area are positioned in the area where the density of the magnetic flux is low, so that the force in the focusing direction by the tracking coils can be reduced.
    • 一种能够显着地减少该区域的滚动的拾取致动器,包括:拾取器基座,其上安装有物镜的透镜保持器和用于在拾取器基座上朝向聚焦和跟踪的方向驱动透镜保持器的透镜保持器驱动装置。 透镜保持器驱动装置包括至少一个磁体,用于在磁通方向上集中磁体的磁通的磁轭,以及具有聚焦线圈和位于磁体和磁轭之间的一对跟踪线圈的驱动线圈 。 磁体和磁轭的相应宽度设定为1:0.8-1.2的速率。 因此,磁通的均匀磁通面积可以宽度分布在磁轭的宽度方向上。 此外,磁体被附着在一个磁轭的一侧同时稍微降低,使得磁体的磁通量的中心从其初始位置向下移动到对应于高度的4-12%的距离 磁体,磁铁的磁通量和聚焦线圈的中心线的中心线彼此对准。 此外,磁体的宽度和一对跟踪线圈之间的间隙设定为1:0.6-0.9的比率。 因此,与有效磁通区域相交的一对跟踪线圈的部分位于磁通密度较低的区域,从而可以减小由跟踪线圈聚焦的力。
    • 69. 发明授权
    • Optical pickup device
    • 光学拾取装置
    • US06400666B1
    • 2002-06-04
    • US09635520
    • 2000-08-09
    • Jang-hoon YooKun-ho ChoYong-hoon LeeSeok-jung KimSeung-tae JungChul-woo LeeJoong-eon Seo
    • Jang-hoon YooKun-ho ChoYong-hoon LeeSeok-jung KimSeung-tae JungChul-woo LeeJoong-eon Seo
    • G11B7095
    • G11B7/1353G11B7/0956
    • An optical pickup device includes a light source for generating and emitting light, optical path changing means for changing a proceeding path of incident light, an objective lens for focusing incident light on a recording medium which has a recording surface where information is recorded and a protection layer, at the side where light is input, for protecting the recording surface, a main photodetector for detecting the information signal and/or an error signal by receiving the light reflected by the recording surface of the recording medium and passing through the objective lens and the optical path changing means, and an inclination detecting unit for detecting inclination of the recording medium by receiving the light emitted from the light source and reflected by the surface of the protection layer or the recording surface of the recording medium. Thus, since the inclination of the recording medium is detected using the light emitted from the light source and reflected by the surface of the protection layer or the recording surface of the recording medium, without an additional tilt sensor, the number of parts is reduced and the structure of the device is simplified.
    • 一种光拾取装置,包括用于产生和发光的光源,用于改变入射光的行进路径的光路改变装置,用于将入射光聚焦在具有记录信息的记录表面的记录介质上的物镜和保护 层,在输入光的一侧用于保护记录表面;主光电检测器,用于通过接收由记录介质的记录表面反射并穿过物镜的光检测信息信号和/或误差信号;以及 光路改变装置和倾斜检测单元,用于通过接收从光源发射并被保护层的表面或记录介质的记录表面反射的光来检测记录介质的倾斜度。 因此,由于使用从光源发出并由保护层的表面或记录介质的记录表面反射的光来检测记录介质的倾斜度,所以没有附加的倾斜传感器,部件的数量减少,并且 简化了设备的结构。