公开(公告)号：US20100254026A1

公开(公告)日：2010-10-07

申请号：US12647138

申请日：2009-12-24

Applicant: Seong-su PARK ,  Ichiro Morishita ,  Soo-han Park ,  Young-man Ahn ,  Byeong-hyeon Yu ,  Jong-il Kim ,  Jung-woo Hong ,  Su-hyun Kim

Inventor： Seong-su PARK ,  Ichiro Morishita ,  Soo-han Park ,  Young-man Ahn ,  Byeong-hyeon Yu ,  Jong-il Kim ,  Jung-woo Hong ,  Su-hyun Kim

IPC: G02B13/18 ,  G02B3/02

CPC classification number: G02B3/04 ,  G11B7/1374 ,  G11B7/13922

Abstract: An object lens for an optical disk may include an aspherical lens surface, and an aspherical equation, which may be applied to form the aspherical lens surface may include two 2nd order function terms. Accordingly, a lens, which has a high numerical aperture (NA) and also has a small flexure on a lens surface or aberration, is provided.

Abstract translation: 用于光盘的物镜可包括非球面透镜表面，并且可用于形成非球面透镜表面的非球面方程可以包括两个二阶函数项。 因此，提供了具有高数值孔径（NA）并且在透镜表面上具有小弯曲或像差的透镜。

公开(公告)号：US07656757B2

公开(公告)日：2010-02-02

申请号：US11368612

申请日：2006-03-07

Applicant: Seok-jung Kim ,  Jung-gug Pae ,  Soo-han Park ,  Moon-whan Lee

Inventor： Seok-jung Kim ,  Jung-gug Pae ,  Soo-han Park ,  Moon-whan Lee

IPC: G11B7/00

CPC classification number: G11B7/08511 ,  G11B7/0927 ,  G11B7/0933 ,  G11B7/0956 ,  G11B2007/0006

Abstract: An optical pickup of an optical recording and reproducing apparatus includes a plurality of object lenses used to record and or reproduce information from/to various types of optical recording media of different recording densities; an actuator driving the object lenses in a focusing direction and supporting the object lenses to have rolling during movement in the focusing direction; and a pickup base installed to movably go and return in a radial direction of an optical recording medium, and the actuator forming a predetermined angle with respect to the pickup base.

Abstract translation: 光学记录和再现装置的光学拾取器包括用于从不同记录密度的各种类型的光学记录介质记录和/或再现信息的多个物镜; 在聚焦方向上驱动物镜的致动器，并且在聚焦方向上移动期间支撑物镜进行滚动; 以及安装成可移动地沿光学记录介质的径向移动并返回的拾取器基座，并且致动器相对于拾取器基座形成预定角度。

公开(公告)号：US07606135B2

公开(公告)日：2009-10-20

申请号：US11430847

申请日：2006-05-10

Applicant: Jang-hoon Yoo ,  Hag-hyun Jang ,  Soo-han Park ,  Soo-jin Jeong ,  Tae-youn Heor ,  Bong-gi Kim

Inventor： Jang-hoon Yoo ,  Hag-hyun Jang ,  Soo-han Park ,  Soo-jin Jeong ,  Tae-youn Heor ,  Bong-gi Kim

IPC: G11B7/00

CPC classification number: G11B7/1275 ,  G11B7/1353 ,  G11B2007/0006

Abstract: An optical recording/reproducing apparatus including a plurality of light sources emitting lights with different wavelengths for use in recording/reproducing information onto/from various types of optical recording media of different recording densities, in which at least two lights emitted from the light sources have polarization components orthogonal to each other; an objective lens for focusing a light from each of the light sources to a corresponding optical recording medium; a collimating lens disposed between the light sources and the objective lens for collimating lights from the light sources; a hologram element installed between the collimating lens and the objective lens for refracting a light emitted from one of the light sources, in which the light to be refracted is selected by wavelength and polarization components; and a photodetector receiving a light that is reflected from the corresponding optical recording medium after being focused by the objective lens.

Abstract translation: 一种光学记录/再现装置，包括发射具有不同波长的光的多个光源，用于在/不同记录密度的各种类型的光学记录介质上记录/再现信息，其中从光源发射的至少两个光具有 极化分量彼此正交; 用于将来自每个光源的光聚焦到相应的光学记录介质的物镜; 设置在光源和物镜之间的准直透镜，用于准直来自光源的光; 安置在准直透镜和物镜之间的全息元件，用于折射从其中一个光源发射的光，其中通过波长和偏振分量选择待折射的光; 以及光接收器，其在被物镜聚焦之后接收从对应的光记录介质反射的光。

公开(公告)号：US07593306B2

公开(公告)日：2009-09-22

申请号：US11337584

申请日：2006-01-24

Applicant: Bong-gi Kim ,  Soo-han Park ,  Jang-hoon Yoo

Inventor： Bong-gi Kim ,  Soo-han Park ,  Jang-hoon Yoo

IPC: G11B7/00

CPC classification number: G11B7/1353 ,  G11B7/0903 ,  G11B7/0909 ,  G11B7/1381

Abstract: A diffraction element for an optical pick-up apparatus is provided that enables more accurate focusing control. The diffraction element for an optical pick-up apparatus is divided into first and second regions, each being formed with a grid pattern in which grids are repeated with a predetermined pitch P. The grid pattern in at least one of the first and second regions is tilted by a predetermined angle with respect to a virtual line VL substantially perpendicular to a division line DL that divides the first and second regions.

Abstract translation: 提供了一种用于光学拾取装置的衍射元件，其能够进行更精确的聚焦控制。 用于光学拾取装置的衍射元件被分成第一和第二区域，每个区域形成有栅格图案，栅格图案以预定间距P重复。第一和第二区域中的至少一个区域中的栅格图案是 相对于基本上垂直于划分第一和第二区域的分割线DL的虚拟线VL倾斜预定角度。

公开(公告)号：US07561497B2

公开(公告)日：2009-07-14

申请号：US11137517

申请日：2005-05-26

Applicant: Jung-gug Pae ,  Seok-jung Kim ,  Soo-han Park

Inventor： Jung-gug Pae ,  Seok-jung Kim ,  Soo-han Park

IPC: G11B7/00

CPC classification number: G11B7/0956 ,  G11B7/0933 ,  G11B7/0935 ,  G11B2007/0006

Abstract: An actuator for an optical pick-up, including: a holder fixed to a base; a bobbin capable of accommodating a plurality of objective lenses for recording and/or reproducing information onto and/or from optical discs with different recording densities; a suspension for connecting the bobbin and the holder, and supporting the bobbin to be movable; and a magnetic circuit for driving the bobbin in focusing, tilting, and tracking directions, wherein the magnetic circuit includes a plurality of focusing/tilting coils installed in the bobbin to be in correspondence to the plurality of lenses, and driving the bobbin in at least one of focusing and tilting directions; a plurality of magnets having the focusing/tilting coils therebetween, in which same polarities of the magnets make one pair; and tracking coils supported by the bobbin, and generating a driving force to drive the bobbin in the tracking direction.

Abstract translation: 一种用于光学拾取器的致动器，包括：固定到基座的保持器; 能够容纳用于在具有不同记录密度的光盘上记录和/或再现信息的多个物镜的筒管; 用于连接线轴和保持架的悬架，并支撑线轴可移动; 以及用于在聚焦，倾斜和跟踪方向上驱动线轴的磁路，其中所述磁路包括安装在所述筒管中以与所述多个透镜相对应的多个聚焦/倾斜线圈，并且至少驱动所述线轴 聚焦和倾斜方向之一; 多个磁体，其间具有聚焦/倾斜线圈，其中磁体的相同极性成为一对; 以及由线轴支撑的跟踪线圈，并产生驱动线轴沿跟踪方向的驱动力。

公开(公告)号：US07450477B2

公开(公告)日：2008-11-11

申请号：US10993443

申请日：2004-11-22

Applicant: Bong-gi Kim ,  Soo-han Park ,  Chun-seong Park

Inventor： Bong-gi Kim ,  Soo-han Park ,  Chun-seong Park

IPC: G11B7/13

CPC classification number: G11B7/1356 ,  G11B7/1395

Abstract: An optical pickup which can remove birefringence due to the non-uniformity of an optical recording medium by using a polarization beam splitter. The optical pickup includes a light source emitting a laser beam, a beam splitter reflecting part of incident light and straight transmitting the remaining light to change a proceeding path of the incident light, an objective lens focusing the incident light passed through the beam splitter to form a light spot on an optical recording medium, a polarization beam splitter arranged on an optical path between the beam splitter and the objective lens for transmitting light having one polarization and reflecting light having a different polarization. The optical pickup further includes a first photodetector for receiving the light having one polarization which is reflected from the optical recording medium and is transmitted by the polarization beam splitter and passes through the beam splitter, and a second photodetector for receiving the light having a different polarization reflected from the optical recording medium that is reflected by the polarization beam splitter. An information signal and error signals are then determined from a signal detected by the first and second photodetectors.

Abstract translation: 一种光拾取器，其可以通过使用偏振分束器来消除由于光记录介质的不均匀性引起的双折射。 光学拾取器包括发射激光束的光源，分光器反射入射光的一部分，并直接透射剩余的光以改变入射光的行进路径;物镜聚焦通过分束器的入射光以形成 光学记录介质上的光点，设置在分束器和物镜之间的光路上的偏振分束器，用于透射具有一个偏振光的光和具有不同偏振的反射光。 光学拾取器还包括第一光电检测器，用于接收具有一个极化的光，该偏振光从光记录介质反射并被偏振分束器透射并通过分束器;以及第二光电检测器，用于接收具有不同极化的光 由偏振分束器反射的光记录介质反射。 然后，从由第一和第二光电检测器检测的信号确定信息信号和误差信号。

公开(公告)号：US07435934B2

公开(公告)日：2008-10-14

申请号：US11329119

申请日：2006-01-11

Applicant: Soo-Han Park ,  Jang-Hoon Yoo ,  Hag-Hyeon Jang ,  Ho-Sik You

Inventor： Soo-Han Park ,  Jang-Hoon Yoo ,  Hag-Hyeon Jang ,  Ho-Sik You

IPC: G11B7/00

CPC classification number: G11B7/1376 ,  G11B7/1263 ,  G11B7/1275 ,  G11B7/1356 ,  G11B7/1374 ,  G11B7/13925 ,  G11B2007/0006

Abstract: An optical pickup apparatus includes a first objective lens having a low numerical aperture (NA) suitable for a low density recording medium, a second objective lens having a high NA suitable for a high density recording medium, a first light source that emits short wavelength light which is focused onto an optical recording medium by the first and second objective lenses, a first photodetector that receives a returning reflected light from the optical recording medium, and a first optical path converter for selectively guiding part of the light emitted from the first light source towards the first or the second objective lens, and guiding the reflected light towards the first photodetector.

Abstract translation: 一种光学拾取装置包括具有适用于低密度记录介质的低数值孔径（NA）的第一物镜，具有适用于高密度记录介质的高NA的第二物镜，发射短波长光的第一光源 其通过第一和第二物镜聚焦到光学记录介质上，第一光电检测器，其接收来自光学记录介质的返回反射光;以及第一光路转换器，用于选择性地引导从第一光源发射的光的一部分 朝向第一或第二物镜，并且将反射光引向第一光电检测器。

公开(公告)号：US07342868B2

公开(公告)日：2008-03-11

申请号：US10985899

申请日：2004-11-12

Applicant: Soo-Han Park ,  Bong-Gi Kim

Inventor： Soo-Han Park ,  Bong-Gi Kim

IPC: G11B7/00

CPC classification number: G11B7/1398 ,  G11B7/0943 ,  G11B7/123 ,  G11B7/1275 ,  G11B7/131 ,  G11B7/1353 ,  G11B7/1356 ,  G11B2007/0006

Abstract: A compatible optical pickup apparatus and method are provided. The apparatus and method include a first light source for generating and emitting a first light having a predetermined wavelength, a second light source for generating and emitting a second light having a wavelength different from the wavelength of the first light, a beam shaping beam splitter provided in paths of the first and second lights for shaping the first and second lights in order to change a shape of a profile of each of the first and second lights to a circular shape and change the paths of the first and second lights, an objective lens for focusing the first and second lights and forming light spots on an optical recording medium, and a main photodetector for receiving the first and second lights by being reflected from the optical recording medium and passing through the objective lens and the beam shaping beam splitter, and detecting an information signal and an error signal.

Abstract translation: 提供了一种兼容的光学拾取装置和方法。 该装置和方法包括用于产生和发射具有预定波长的第一光的第一光源，用于产生和发射具有与第一光的波长不同的波长的第二光的第二光源，设置有光束成形分束器 在用于使第一和第二光成形的第一和第二光的路径中，以便将第一和第二光中的每一个的轮廓的形状改变为圆形并改变第一和第二光的路径，物镜 用于将第一和第二光聚焦并在光学记录介质上形成光点;以及主光电检测器，用于通过从光学记录介质反射并通过物镜和光束整形分束器来接收第一和第二光，以及 检测信息信号和误差信号。

公开(公告)号：US07334246B2

公开(公告)日：2008-02-19

申请号：US10983581

申请日：2004-11-09

Applicant: Soo-han Park ,  Bong-gi Kim ,  Do-hoan Nam

Inventor： Soo-han Park ,  Bong-gi Kim ,  Do-hoan Nam

IPC: G11B7/08 ,  G11B7/085 ,  G11B7/09

CPC classification number: G11B7/08582

Abstract: An optical pickup apparatus for an optical disc drive, including: a base; a turntable disposed above the base and which rotates an optical disc; an optical pickup unit which reciprocates with respect to the turntable in a radial direction of the turntable; a driving part which moves the optical pickup unit with respect to the turntable; and a guide unit having an auxiliary guide which supports an end of the optical pickup unit and which guides the optical pickup unit along a moving path. The optical pickup unit and the auxiliary guide are in line-contact with each other.

Abstract translation: 一种用于光盘驱动器的光学拾取装置，包括：基座; 设置在所述基座上方并使光盘旋转的转盘; 光学拾取单元，其在转盘的径向方向上相对于转台往复运动; 使光拾取单元相对于转台移动的驱动部; 以及引导单元，其具有支撑光学拾取单元的端部并且沿着移动路径引导光学拾取单元的辅助引导件。 光学拾取单元和辅助引导件彼此线接触。

公开(公告)号：US07230904B2

公开(公告)日：2007-06-12

申请号：US09852002

申请日：2001-05-10

Applicant: Soo-han Park

Inventor： Soo-han Park

IPC: G11B7/00

CPC classification number: G11B7/127 ,  G11B7/0943 ,  G11B7/131 ,  G11B7/1353 ,  G11B2007/0006

Abstract: A simulation device for simulating an operation of a system constituted by a plurality of machines. An operation program is executed by an arithmetic processing unit in a controller of a machine or by an information processing device having a function of analyzing the operation program equivalent to the controller of the machine, to obtain operation command data for the machine. The obtained operation command data of the machine with lapsing time information are received by the simulation device and stored as historical data. Operation programs of all of the machines constituting the system are executed to obtain historical data of operations of the machines, which are united by arranging the data in time series from a start of simultaneous operations of the machines based on the lapsing time information. Images of three-dimensional models of the machines are displayed by animation based on the united historical data.

Abstract translation: 兼容的光盘播放器和数据记录和/或再现方法包括：激光束源，包括第一激光二极管和第二激光二极管，其中第一激光二极管发射第一波长的第一激光束，用于记录和/或再现 包括第一记录密度的第一光盘上的数据和第二激光二极管发射用于在包括第二记录密度的第二光盘上记录和/或再现数据的第二波长的第二激光束。 衍射光栅根据要访问的光盘选择性地将第一和第二激光束分裂成主光线和两个子光线。 光检测器在不同的检测部分选择性地接收第一激光束的三条光线和第二激光束的三条光线，用于数据记录和/或再现以及错误检测和补偿。