利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

59 条记录 (耗时 0.041 秒)

    Optical pickup having a tilt mechanism to adjust an optical axis of an incident light beam
    1.
    发明授权
    Optical pickup having a tilt mechanism to adjust an optical axis of an incident light beam 失效
    具有用于调整入射光束的光轴的倾斜机构的光学拾取器

    公开(公告)号：US06295255B1

    公开(公告)日：2001-09-25

    申请号：US09315989

    申请日：1999-05-21

    申请人： Young-sun Seo ,  Han-kook Choi ,  Pyong-yong Seong ,  In-sik Park ,  Hee-deuk Park ,  Young-min Cheong ,  Dong-ho Shin

    发明人： Young-sun Seo ,  Han-kook Choi ,  Pyong-yong Seong ,  In-sik Park ,  Hee-deuk Park ,  Young-min Cheong ,  Dong-ho Shin

    IPC分类号： G11B700

    CPC分类号： G11B7/1362 ,  G11B7/0932 ,  G11B7/0935 ,  G11B7/0956

    摘要： An optical pickup includes a rotary block rotatably installed on a fixed base; a holder integrally coupled to the rotary block; a bobbin supported by a wires of the holder to be movable; a base plate fixed to the fixed base and placed between the rotary block and the bobbin; an objective lens mounted in the bobbin, for focusing an incident light to form a spot of light on a recording medium; a focusing coil and tracking coils installed in the bobbin, serving as a current flow path for focusing and tracking operations; first magnets and first inner and outer yokes installed in the base plate, facing the focusing coil and the tracking coils, for producing magnetic fields perpendicular to the current flowing through the focusing coil and the tracking coils to produce an electromagnetic force for driving the bobbin; a fixed optical system for irradiating light toward the recording medium and receiving the light reflected by the recording medium and then passed through the objective lens; a reflecting mirror for changing the traveling path of the incident light, the reflecting mirror installed in the rotary block to be arranged between the objective lens and the fixed optical system; tilt coils serving as a current flow path, the tilt coils installed at both sides of the rotary block; and second magnets and second inner and outer yokes installed facing the tilt coils, for producing magnetic fields perpendicular to the current flowing through the tilt coils to produce an electromagnetic force for rotating the rotary block. Therefore, the tilt of the optical axis of the light incident onto and reflected by an optical disk through the reflecting mirror and the objective lens can be adjusted according to the tilt of the recording medium, such that the light is perpendicularly incident onto and reflected by the recording medium all the time.

    摘要翻译： 光学拾取器包括可旋转地安装在固定基座上的旋转块; 一体地联接到所述旋转块的保持器; 由保持器的电线支撑的可绕动的线轴; 固定在所述固定基座上并设置在所述旋转块和所述筒管之间的基板; 安装在筒管中的物镜，用于聚焦入射光以在记录介质上形成光斑; 安装在筒管中的聚焦线圈和跟踪线圈，用作用于聚焦和跟踪操作的电流流动路径; 第一磁体和安装在基板中的面对聚焦线圈和跟踪线圈的第一内外轭，用于产生垂直于流过聚焦线圈和跟踪线圈的电流的磁场，以产生用于驱动线轴的电磁力; 用于向记录介质照射光并接收由记录介质反射的光然后通过物镜的固定光学系统; 用于改变入射光的行进路径的反射镜，安装在旋转块中以设置在物镜和固定光学系统之间的反射镜; 倾斜线圈用作电流流路，倾斜线圈安装在旋转块的两侧; 并且第二磁体和第二内外轭安装成面对倾斜线圈，用于产生垂直于流过倾斜线圈的电流的磁场，以产生用于旋转旋转块的电磁力。 因此，可以根据记录介质的倾斜度，通过反射镜和物镜入射到光盘并由其反射的光的光轴的倾斜，使得光垂直入射到其上并由 记录介质。

    Optical disk
    2.
    发明授权
    Optical disk 有权
    光盘

    公开(公告)号：US06449241B1

    公开(公告)日：2002-09-10

    申请号：US09433301

    申请日：1999-11-03

    申请人： Pyong-yong Seong ,  Jung-wan Ko ,  In-sik Park

    发明人： Pyong-yong Seong ,  Jung-wan Ko ,  In-sik Park

    IPC分类号： G11B724

    CPC分类号： G11B7/24085 ,  G11B7/007 ,  G11B7/24

    摘要： An optical disk having an improved structure is provided so that about 15 gigabytes or more can be recorded on each information recording surface. The optical disk includes at least one information substrate having an incident surface where light for recording/reproducing signals is input and a recording surface where information signals are recorded, and at least one reflection layer formed by being coated on the recording surface for reflecting at least a part of incident light. In the optical disk, assuming that the entire thickness of the optical disk is D and the distance between the incident surface and the recording surface of the information substrate is D1, the inequality 0.20≦D1/D≦0.38 is satisfied. Also, the optical disk includes a first information substrate having an incident surface where light for recording/reproducing signals is input and a first recording surface where information signals are recorded, a first reflection layer formed by being coated on the first recording surface for reflecting at least a part of incident light, and a second reflection layer formed on the second recording surface for reflecting at least a part of incident light. In the optical disk, assuming that the entire thickness of the optical disk is D and the distance between the incident surface and the first recording surface of the first information substrate is D1, the inequality 0.20≦D1/D≦0.38 is satisfied.

    摘要翻译： 提供了具有改进结构的光盘，使得每个信息记录表面上可以记录大约15吉字节或更多。 光盘包括至少一个具有入射表面的信息衬底，其中输入用于记录/再现信号的光和记录信息信号的记录表面，以及至少一个反射层，其被形成在记录表面上以至少反射 一部分入射光。 在光盘中，假设光盘的整个厚度为D，信息基板的入射表面和记录表面之间的距离为D1，则满足不等式0.20 <= D1 / D <= 0.38。 此外，光盘包括具有入射面的第一信息基板，其中输入用于记录/再现信号的光，以及记录信息信号的第一记录表面，通过涂覆在第一记录表面上形成的第一反射层，用于反射 入射光的至少一部分，以及形成在第二记录面上的第二反射层，用于反射入射光的至少一部分。 在光盘中，假设光盘的整个厚度为D，并且第一信息基板的入射表面和第一记录表面之间的距离为D1，则满足不等式0.20 <= D1 / D <= 0.38。

    Optical recording and reproducing apparatus, tilt adjusting method appropriate therefor, and recording control method
    3.
    发明授权
    Optical recording and reproducing apparatus, tilt adjusting method appropriate therefor, and recording control method 有权
    光学记录和再现装置，适用于其的倾斜调整方法和记录控制方法

    公开(公告)号：US06282161B1

    公开(公告)日：2001-08-28

    申请号：US09369127

    申请日：1999-08-05

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

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

    IPC分类号： G11B390

    CPC分类号： G11B7/0956

    摘要： 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.

    摘要翻译： 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。

    Magnetic circuit, optical pickup actuator, optical recording and/or reproducing apparatus, and methods therefor
    8.
    发明授权
    Magnetic circuit, optical pickup actuator, optical recording and/or reproducing apparatus, and methods therefor 失效
    磁路，光学拾取器致动器，光学记录和/或再现装置及其方法

    公开(公告)号：US07631322B2

    公开(公告)日：2009-12-08

    申请号：US11043453

    申请日：2005-01-27

    申请人： Hyung-joo Kang ,  Byung-youn Song ,  Pyong-yong Seong ,  Dae-jong Jang

    发明人： Hyung-joo Kang ,  Byung-youn Song ,  Pyong-yong Seong ,  Dae-jong Jang

    IPC分类号： G11B7/00

    CPC分类号： G11B7/0935 ,  G11B7/093 ,  G11B7/0933 ,  G11B7/0956

    摘要： A magnetic circuit, an optical pickup actuator, an optical recording and/or reproducing apparatus using the magnetic circuit, and method of the same, wherein the magnetic circuit includes a plurality of focus coil units each of which includes a first focus coil and a second focus coil, and a magnet including a plurality of magnet portions which interact with the plurality of focus coil units and each of which is polarized in a direction opposite to adjacent magnet portions thereamong. Here, electromagnetic forces act on the first and second focus coils in each focus coil unit in a same direction in response to focus driving signals and in opposite directions in response to tilt driving signals, with the first and second focus coils in each focus coil unit have different effective coil lengths.

    摘要翻译： 磁路，光拾取器致动器，使用磁路的光学记录和/或再现装置及其方法，其中磁路包括多个聚焦线圈单元，每个聚焦线圈单元包括第一聚焦线圈和第二聚焦线圈 聚焦线圈和包括与多个聚焦线圈单元相互作用的多个磁体部分的磁体，并且每个磁体在与其相邻的磁体部分相反的方向上被极化。 这里，响应于倾斜驱动信号，响应于聚焦驱动信号和相反方向，电磁力以相同的方向在每个聚焦线圈单元中的第一和第二聚焦线圈上作用，第一和第二聚焦线圈在每个聚焦线圈单元 具有不同的有效线圈长度。

    Optical pickup and optical recording and/or reproducing apparatus adopting the same
    9.
    发明授权
    Optical pickup and optical recording and/or reproducing apparatus adopting the same 有权
    采用该拾取器和光学记录和/或再现装置的光拾取器和/或再现装置

    公开(公告)号：US07362689B2

    公开(公告)日：2008-04-22

    申请号：US10926150

    申请日：2004-08-26

    申请人： Sun-mook Park ,  Jin-ho Jung ,  Pyong-yong Seong

    发明人： Sun-mook Park ,  Jin-ho Jung ,  Pyong-yong Seong

    IPC分类号： G11B7/00

    CPC分类号： G11B7/131 ,  G11B7/0901 ,  G11B7/094 ,  G11B7/1275 ,  G11B7/1353 ,  G11B7/1381 ,  G11B2007/0006

    摘要： An optical pickup which, when a first light reflected by a recording medium is divided into a central light area and first and second peripheral light areas at both sides of the central light area, divides the first light reflected by the recording medium into at least 6 light areas, and the at least 6 light areas are independently detected from first through sixth light-receiving portions of a photodetector. Hence, the photodetector can detect a tracking error signal whose offset generation due to a shift of an objective lens is insensitive and whose offset generation due to an initial photodetector balance deviation is depressed.

    摘要翻译： 一种光拾取器，当由记录介质反射的第一光被分成中心光区域和中心光区域两侧的第一和第二周边光区域时，将由记录介质反射的第一光分成至少6个 光区域，并且至少6个光区域被独立地从光电检测器的第一至第六光接收部分检测。 因此，光检测器可以检测由于物镜的偏移引起的偏移产生不敏感并且由于初始光电检测器平衡偏差导致的偏移产生被抑制的跟踪误差信号。

    Optical pickup apparatus and optimal light spot focusing method
    10.
    发明授权
    Optical pickup apparatus and optimal light spot focusing method 有权
    光拾取装置和最佳光点聚焦法

    公开(公告)号：US07280458B2

    公开(公告)日：2007-10-09

    申请号：US10120786

    申请日：2002-04-12

    申请人： Yong-jae Lee ,  Sung-ro Go ,  Pyong-yong Seong ,  Chang-jin Yang ,  Gi-bong Song ,  Byung-in Ma ,  Jong-koog Lee

    发明人： Yong-jae Lee ,  Sung-ro Go ,  Pyong-yong Seong ,  Chang-jin Yang ,  Gi-bong Song ,  Byung-in Ma ,  Jong-koog Lee

    IPC分类号： G11B7/95

    CPC分类号： G11B7/131 ,  G11B7/00718 ,  G11B7/094 ,  G11B7/0941 ,  G11B7/0943 ,  G11B7/0946 ,  G11B7/0956 ,  G11B7/1275 ,  G11B7/1353 ,  G11B7/1367 ,  G11B7/139 ,  G11B7/13922 ,  G11B2007/0006

    摘要： An optical pickup apparatus includes a first light source to emit a first light beam having a predetermined wavelength, a first optical path changer to change a proceeding path of the first light beam, an objective lens to focus the first light beam on a recording medium, a diffraction member to divide the first light beam reflected by the recording medium into five light regions, the diffraction member having a first diffraction region having a wide width in a direction corresponding to a tangential direction of the recording medium and second through fifth diffraction regions sequentially arranged around the outside of the first diffraction region in a direction corresponding to a radial direction of the recording medium, and a first photodetector having first through fifth light receiving portions to receive the first light beam reflected by the recording medium.

    摘要翻译： 一种光拾取装置包括：发射具有预定波长的第一光束的第一光源;改变第一光束的行进路径的第一光路改变器;将第一光束聚焦在记录介质上的物镜; 衍射构件，用于将由记录介质反射的第一光束分成五个光区域，衍射构件具有在与记录介质的切线方向对应的方向上具有宽宽度的第一衍射区域和第二至第五衍射区域 在与所述记录介质的径向对应的方向上围绕所述第一衍射区域的外侧布置;以及第一光电检测器，具有第一至第五光接收部分，以接收由所述记录介质反射的所述第一光束。