公开(公告)号：US06556520B1

公开(公告)日：2003-04-29

申请号：US09629049

申请日：2000-07-31

Applicant: Seong-sin Joo ,  In-sik Park ,  Byung-in Ma ,  Chong-sam Chung ,  Jang-hoon Yoo ,  Jung-wan Ko ,  Kyung-geun Lee ,  Joong-eon Seo

Inventor： Seong-sin Joo ,  In-sik Park ,  Byung-in Ma ,  Chong-sam Chung ,  Jang-hoon Yoo ,  Jung-wan Ko ,  Kyung-geun Lee ,  Joong-eon Seo

IPC: G11B700

CPC classification number: G11B7/00718 ,  G11B7/0901 ,  G11B7/0938 ,  G11B7/0941 ,  G11B7/0956

Abstract: A method of detecting a servo error, an apparatus therefor, a disk which maintains quantity of a servo error signal, a method of controlling a servo of an apparatus for recording data on and reproducing data from a disk, a method of detecting the tracking error, and a method of detecting tilt error of the apparatus. The apparatus for recording data on and reproducing data from the disk in which a recording area is divided into sectors, each sector has a header for indicating an address, each header has a first header and a second header which are recorded to deviate from the center of the track in opposite directions, and the first header and the second header have address areas in which the addresses of sectors are recorded and synchronous signal areas in which synchronous signals for detecting the address signals recorded in the address area are recorded, includes a reproducing signal generator, a sum signal disk, a header area detector, a first synchronous signal level detector a first, a second synchronous signal level detector, and a balance calculator for calculating the balance of the magnitude Ivfo1 of the first synchronous signal detected by the first synchronous signal level detector and the magnitude Ivfo3 of the second synchronous signal detected by the second synchronous signal level detector.

Abstract translation: 一种检测伺服误差的方法，其装置，保持伺服误差信号量的盘，控制用于从盘记录数据和从盘再现数据的装置的伺服的方法，检测跟踪误差的方法 以及检测装置的倾斜误差的方法。 用于在盘中记录数据并从其再现数据的装置，其中记录区被划分为扇区，每个扇区具有用于指示地址的标题，每个标题具有被记录为偏离中心的第一标题和第二标题 并且第一标题和第二标题具有其中记录了扇区的地址的地址区域，并且记录了用于检测记录在地址区域中的地址信号的同步信号的同步信号区域，包括再现 信号发生器，和信号盘，标题区检测器，第一同步信号电平检测器，第一，第二同步信号电平检测器和用于计算由第一同步信号电平检测器检测的第一同步信号的幅度Ivfo1的平衡的平衡计算器 同步信号电平检测器和由第二同步信号电平检测的第二同步信号的幅度Ivfo3 探测器。

公开(公告)号：US06466529B1

公开(公告)日：2002-10-15

申请号：US09680463

申请日：2000-10-06

Applicant: Seok-jung Kim ,  Yong-hoon Lee ,  Tae-kyung Kim ,  Jang-hoon Yoo

Inventor： Seok-jung Kim ,  Yong-hoon Lee ,  Tae-kyung Kim ,  Jang-hoon Yoo

IPC: G11B700

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

Abstract: An optical pickup assembly having an elastically supported tilt mechanism. The optical pickup assembly includes a bobbin at which an objective lens is mounted and an elastic support member which supports the bobbin in elastic motion with respect to a holder installed at a base. A focus coil and a tracking coil are installed at the bobbin and form a conducting path for driving the objective lens in a focusing direction and a tracking direction. Tilt coils are installed at one side of the bobbin and form a conductive path for driving tilt of the objective lens. A first magnet and a first yoke generate an electromagnetic force to driving the objective lens together with the current carrying focus coil and tracking coil. A second magnet and a second yoke generate an electromagnetic force to driving the objective lens together with the current carrying tilt coils. A position detecting sensor measures relative inclination of the objective lens with respect to a disk, and a balance member coupled to the bobbin to balance the weight of the tilt coils by applying weight corresponding to the weight of the tilt coils at positions symmetrically opposite to the positions of the tilt coils.

Abstract translation: 一种具有弹性支撑的倾斜机构的光学拾取器组件。 光拾取器组件包括安装物镜的筒管和相对于安装在基座上的保持器弹性运动地支撑筒管的弹性支撑构件。 聚焦线圈和跟踪线圈安装在线轴上并形成用于沿聚焦方向和跟踪方向驱动物镜的导电路径。 倾斜线圈安装在线轴的一侧，形成用于驱动物镜倾斜的导电路径。 第一磁体和第一磁轭一起产生电磁力以与载流聚焦线圈和跟踪线圈一起驱动物镜。 第二磁体和第二磁轭产生电磁力以与载流倾斜线圈一起驱动物镜。 位置检测传感器测量物镜相对于盘的相对倾斜度，以及平衡构件，其耦合到筒管，以通过将对应于倾斜线圈的重量的重量施加在倾斜线圈的重量上来平衡倾斜线圈的重量， 倾斜线圈的位置。

公开(公告)号：US08384786B2

公开(公告)日：2013-02-26

申请号：US12942332

申请日：2010-11-09

Applicant: Liefeng Zhao ,  Jang-hoon Yoo

Inventor： Liefeng Zhao ,  Jang-hoon Yoo

IPC: H04N5/228 ,  G03B17/00

CPC classification number: G03B17/00 ,  H04N5/23248 ,  H04N5/23258 ,  H04N5/23287

Abstract: A method of compensating for vibration and an imaging apparatus are provided. The method of compensating for vibration includes determining whether a vibration compensation starting condition is satisfied, and starting compensating for vibration prior to operating a shutter, if the vibration compensation starting condition is satisfied. Accordingly, a shutter lag is reduced and power consumption is reduced, and accuracy of vibration compensation is improved.

Abstract translation: 提供了补偿振动的方法和成像装置。 补偿振动的方法包括确定是否满足振动补偿启动条件，以及如果满足振动补偿启动条件，则开始补偿操作闸板之前的振动。 因此，快门滞后减少，功耗降低，振动补偿的精度提高。

公开(公告)号：US08199413B2

公开(公告)日：2012-06-12

申请号：US12877247

申请日：2010-09-08

Applicant: Seok-bong Kang ,  Jang-hoon Yoo

Inventor： Seok-bong Kang ,  Jang-hoon Yoo

IPC: G02B15/14

CPC classification number: G02B15/173

Abstract: A zoom optical system including a first lens group including a plastic aspherical lens and having a negative refractive power, a second lens group having a positive refractive power, and a third lens group having a positive refractive power, wherein the first lens group, the second lens group and the third lens group are arrange sequentially from an object side to an image side, and wherein the plastic aspherical lens satisfies the following Inequality: 0≦(R21−R22)2≦0.04, where R21 denotes the radius of curvature of the plastic aspherical lens corresponding to the object side, and R22 denotes the radius of curvature of the plastic aspherical lens corresponding to the image side.

Abstract translation: 一种变焦光学系统，包括：包括塑料非球面透镜并具有负折光力的第一透镜组，具有正折光力的第二透镜组和具有正折光力的第三透镜组，其中所述第一透镜组，所述第二透镜组 透镜组和第三透镜组从物体侧到像侧依次排列，并且其中塑料非球面透镜满足以下不等式：0＆nlE;（R21-R22）2＆nlE; 0.04，其中R21表示 对应于物体侧的塑料非球面透镜，R22表示与图像侧对应的塑料非球面透镜的曲率半径。

公开(公告)号：US20110063737A1

公开(公告)日：2011-03-17

申请号：US12877247

申请日：2010-09-08

Applicant: Seok-bong Kang ,  Jang-hoon Yoo

Inventor： Seok-bong Kang ,  Jang-hoon Yoo

IPC: G02B15/14

CPC classification number: G02B15/173

Abstract: A zoom optical system including a first lens group including a plastic aspherical lens and having a negative refractive power, a second lens group having a positive refractive power, and a third lens group having a positive refractive power, wherein the first lens group, the second lens group and the third lens group are arrange sequentially from an object side to an image side, and wherein the plastic aspherical lens satisfies the following Inequality: 0≦(R21−R22)2≦0.04, where R21 denotes the radius of curvature of the plastic aspherical lens corresponding to the object side, and R22 denotes the radius of curvature of the plastic aspherical lens corresponding to the image side.

Abstract translation: 一种变焦光学系统，包括：包括塑料非球面透镜并具有负折光力的第一透镜组，具有正折光力的第二透镜组和具有正折光力的第三透镜组，其中所述第一透镜组，所述第二透镜组 透镜组和第三透镜组从物体侧到像侧依次排列，并且其中塑料非球面透镜满足以下不等式：0＆nlE;（R21-R22）2＆nlE; 0.04，其中R21表示 对应于物体侧的塑料非球面透镜，R22表示与图像侧对应的塑料非球面透镜的曲率半径。

公开(公告)号：US07885165B2

公开(公告)日：2011-02-08

申请号：US11332243

申请日：2006-01-17

Applicant: Soo-han Park ,  Jang-hoon Yoo ,  Hag-hyeon Jang ,  Yong-han Yoon ,  Soo-jin Jung

Inventor： Soo-han Park ,  Jang-hoon Yoo ,  Hag-hyeon Jang ,  Yong-han Yoon ,  Soo-jin Jung

IPC: G11B7/12

CPC classification number: G11B7/1275 ,  G11B7/1353 ,  G11B7/1376 ,  G11B7/1378 ,  G11B7/13922 ,  G11B7/13925 ,  G11B2007/0006 ,  G11B2007/0013 ,  G11B2007/13727

Abstract: An optical pickup device according to an embodiment of the present invention comprises a light source for projecting a beam of light to record and reproduce information with respect to an optical recording medium. A collimating lens is disposed on a path of the light to converge and convert the light into a parallel beam. An object lens condenses the parallel beam from the collimating lens and projects the parallel beam onto the optical recording medium. An optical element is disposed between the collimating lens and the object lens. A first actuator moves the collimating lens along the optical axis to thereby control a distance between the collimating lens and the optical element. A first controller drives the first actuator to find a position for the collimating lens, for reducing aberration generated in the light being projected to the optical recording medium. Accordingly, the aberration can be effectively prevented, thereby improving recording and reproducing performance of the optical pickup device.

Abstract translation: 根据本发明的实施例的光学拾取装置包括用于投射光束以记录和再现关于光学记录介质的信息的光源。 准直透镜设置在光的路径上以会聚并将光转换成平行光束。 物镜将来自准直透镜的平行光束会聚并将平行光束投影到光记录介质上。 光学元件设置在准直透镜和物镜之间。 第一致动器沿着光轴移动准直透镜，从而控制准直透镜和光学元件之间的距离。 第一控制器驱动第一致动器以找到用于准直透镜的位置，用于减少投射到光记录介质的光中产生的像差。 因此，可以有效地防止像差，从而提高光拾取装置的记录和再现性能。

公开(公告)号：US20080074757A1

公开(公告)日：2008-03-27

申请号：US11748753

申请日：2007-05-15

Applicant: Jang-hoon Yoo ,  Dong-ho Shin ,  Soo-han Park

Inventor： Jang-hoon Yoo ,  Dong-ho Shin ,  Soo-han Park

IPC: G02B3/10 ,  G11B7/00

CPC classification number: G02B27/0037 ,  G02B27/4238 ,  G11B7/1353 ,  G11B7/1374 ,  G11B7/13922

Abstract: An object lens arranged on a light proceeding path to focus light on a recording medium includes a first surface that is an incident surface on which light is incident, a second surface from which light exits to be focused on the recording medium, and a diffractive optical element disposed on at least one of the first and second surfaces and which has a refractivity of fD/f

Abstract translation: 布置在光行进路径上以将光聚焦在记录介质上的物镜包括作为光入射的入射表面的第一表面，光从其出射以聚焦在记录介质上的第二表面，以及衍射光学 元件设置在所述第一表面和所述第二表面中的至少一个表面上，并且具有作为所述衍射光学元件的焦距的f D D / f <5的折射率 f是物镜的焦距。 物镜的数值孔径为0.75以上。

公开(公告)号：US20070053274A1

公开(公告)日：2007-03-08

申请号：US11514253

申请日：2006-09-01

Applicant: Jang-hoon Yoo ,  Soo-han Park ,  Young-man Ahn ,  Tae-kyung Kim ,  Yong-han Yoon ,  Young-sun Jeon

Inventor： Jang-hoon Yoo ,  Soo-han Park ,  Young-man Ahn ,  Tae-kyung Kim ,  Yong-han Yoon ,  Young-sun Jeon

IPC: G11B7/135

CPC classification number: G11B7/1369 ,  G11B7/1353 ,  G11B7/1365 ,  G11B7/139 ,  G11B2007/0006

Abstract: An optical pickup and an optical recording and/or reproducing apparatus include a light source which emits light having a first wavelength, an objective lens that focuses incident light on an information storage medium and is optimized for a first information storage medium of a predetermined standard, a polarization changer which changes the light with the first wavelength incident from the light source into light beams with first and second polarizations that are orthogonal to each other, a polarization hologram element which has a varying refractive power according to the polarization of the light with the first wavelength that passes through the polarization changer, a photodetector which receives light after the light has been emitted from the light source, focused on the information storage medium by the objective lens, and reflected by the information storage medium, and an optical path changer which guides the light reflected by the information storage medium toward the photodetector, wherein the optical pickup can compatibly adopt the first information storage medium and a second information storage medium which has a different thickness from the first information storage medium.

Abstract translation: 光学拾取器和光学记录和/或再现装置包括发射具有第一波长的光的光源，将入射光聚焦在信息存储介质上并针对预定标准的第一信息存储介质进行了优化的物镜， 将从光源入射的第一波长的光改变为具有彼此正交的第一和第二偏振光束的偏振光改变器，根据光的偏振具有变化的屈光力的偏振全息元件 通过偏振光变换器的第一波长，从光源发光后接收光的光电检测器，由物镜聚焦在信息存储介质上，并由信息存储介质反射;以及光路改变器， 将由信息存储介质反射的光引向光电二极管 检测器，其中所述光学拾取器可兼容地采用所述第一信息存储介质和与所述第一信息存储介质具有不同厚度的第二信息存储介质。

公开(公告)号：US20060266918A1

公开(公告)日：2006-11-30

申请号：US11337593

申请日：2006-01-24

Applicant: Soo-han Park ,  Seok-jung Kim ,  Jang-hoon Yoo ,  Hag-hyeon Jang ,  Yong-han Yoon

Inventor： Soo-han Park ,  Seok-jung Kim ,  Jang-hoon Yoo ,  Hag-hyeon Jang ,  Yong-han Yoon

IPC: G02B27/40 ,  G02B7/04

CPC classification number: G11B7/1374 ,  G02B27/0068 ,  G11B7/13925 ,  G11B7/13927

Abstract: An optical pick-up device is provided that reduces aberrations in light irradiated from an optical recording meidu. The device includes a light source that outputs light for recordation and reproduction of information onto the optical recording medium. An objective lens irradiates the light onto the optical recording medium by concentrating the light. An actuator adjusts the movement of the objective lens to focus the light on at least one or more layers of the optical recording medium. A controller moves the objective lens to substantially reduce the aberration occurring in the light irradiated from the optical recording medium by driving the actuator, such that aberrations, such as asymmetrical aberrations or coma aberrations, may be reduced and corrected.

Abstract translation: 提供一种光学拾取装置，其减少从光学记录墨粉照射的光中的像差。 该装置包括一个光源，该光源输出用于在光学记录介质上记录和再现信息的光。 物镜通过聚光来将光照射到光记录介质上。 致动器调节物镜的运动，以将光聚焦在光记录介质的至少一层或多层上。 控制器移动物镜以通过驱动致动器来大大减少在从光记录介质照射的光中发生的像差，从而可以减小和校正像差，例如不对称像差或彗形像差。

公开(公告)号：US20050169129A1

公开(公告)日：2005-08-04

申请号：US11095481

申请日：2005-04-01

Applicant: Seong-sin Joo ,  In-sik Park ,  Byung-in Na ,  Chong-sam Chung ,  Jang-hoon Yoo ,  Jung-wan Ko ,  Kyung-geun Lee ,  Joong-eon Seo

Inventor： Seong-sin Joo ,  In-sik Park ,  Byung-in Na ,  Chong-sam Chung ,  Jang-hoon Yoo ,  Jung-wan Ko ,  Kyung-geun Lee ,  Joong-eon Seo

IPC: G11B7/24 ,  G11B7/00 ,  G11B7/007 ,  G11B7/09 ,  G11B7/095 ,  G11B20/12 ,  G11B21/10

CPC classification number: G11B7/00718 ,  G11B7/0901 ,  G11B7/0938 ,  G11B7/0941 ,  G11B7/0956

Abstract: An apparatus for recording data on and reproducing data from the disk in which a recording area is divided into sectors, includes a reproducing signal generator for generating a reproducing signal including sum signals V1 and V2 of radial pairs, a sum signal RF_sum, and a push-pull signal RF_pp from an optical signal reflected from the disk, a header area detector for generating a header area signal including a header area from the reproducing signal, a first synchronous signal level detector for detecting a magnitude Ivfo1 of a first synchronous signal in the first header by being synchronized with the header area signal, a second synchronous signal level detector for detecting a magnitude Ivfo3 of a second synchronous signal in the second header by being synchronized with the header area signal, and a balance calculator for calculating the balance of the magnitude Ivfo1 and the magnitude Ivfo3.

Abstract translation: 一种用于在盘中将数据记录在数据上并将数据从记录区域划分成扇区的装置，包括一个再现信号发生器，用于产生包括径向对的和信号V 1和V 2的再现信号，和信号RF_sum和 来自从盘反射的光信号的推挽信号RF_pp，用于产生包含来自再现信号的标题区的标题区信号的标题区检测器，用于检测第一同步信号的幅度Ivfo1的第一同步信号电平检测器 信号通过与标题区域信号同步在第一标题中;第二同步信号电平检测器，用于通过与标题区域信号同步来检测第二标题中的第二同步信号的幅度Ivfo 3;以及平衡计算器，用于计算 幅度Ivfo 1和幅度Ivfo 3的平衡。