公开(公告)号：US08526286B2

公开(公告)日：2013-09-03

申请号：US13316085

申请日：2011-12-09

申请人： Seong-su Park ,  Joji Anzai ,  Yong-han Yoon ,  Jong-uk Kim ,  Ichiro Morishita

发明人： Seong-su Park ,  Joji Anzai ,  Yong-han Yoon ,  Jong-uk Kim ,  Ichiro Morishita

IPC分类号： G11B7/00

CPC分类号： G11B7/1374 ,  G11B7/1353

摘要： An optical pick-up apparatus for reproducing information recorded on an optical recording medium or recording information on the optical recording medium is provided. The optical pick-up apparatus includes a light source unit which generates beams; a diffraction element which diffracts the generated beams; and an objective lens which focuses a p order diffracted beam which is used for recording and reproducing information among a plurality of diffracted beams which are diffracted by the diffraction element on any one of a plurality of information layers which are formed on an optical recording medium. A p±1 order diffracted beam which is not used for recording and reproducing information is focused away from the plurality of information recording layers and on the surface of the optical recording medium.

摘要翻译： 提供了一种用于再现记录在光学记录介质上的信息或在光学记录介质上记录信息的光学拾取装置。 光学拾取装置包括产生光束的光源单元; 衍射元件衍射生成的光束; 以及物镜，其将用于在通过衍射元件衍射的多个衍射光束中记录和再现信息的p阶衍射光束聚焦在形成在光学记录介质上的多个信息层中的任一个上。 不用于记录和再现信息的p±1级衍射光束从多个信息记录层和光记录介质的表面上聚焦。

公开(公告)号：US20060164708A1

公开(公告)日：2006-07-27

申请号：US11332243

申请日：2006-01-17

申请人： Soo-han Park ,  Jang-hoon Yoo ,  Hang-hyeon Jang ,  Yong-han Yoon ,  Soo-jin Jung

发明人： Soo-han Park ,  Jang-hoon Yoo ,  Hang-hyeon Jang ,  Yong-han Yoon ,  Soo-jin Jung

IPC分类号： G02B26/08

CPC分类号： G11B7/1275 ,  G11B7/1353 ,  G11B7/1376 ,  G11B7/1378 ,  G11B7/13922 ,  G11B7/13925 ,  G11B2007/0006 ,  G11B2007/0013 ,  G11B2007/13727

摘要： 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.

摘要翻译： 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：US07924682B2

公开(公告)日：2011-04-12

申请号：US11970638

申请日：2008-01-08

申请人： Jang-hoon Yoo ,  Yong-han Yoon ,  Soo-hen Park ,  Young-sun Jeong ,  Myoung-seek Kim

发明人： Jang-hoon Yoo ,  Yong-han Yoon ,  Soo-hen Park ,  Young-sun Jeong ,  Myoung-seek Kim

IPC分类号： G11B7/00

CPC分类号： G11B7/1374 ,  G11B7/1353 ,  G11B7/1362 ,  G11B7/1398 ,  G11B2007/0013

摘要： A unit to remove crosstalk in a multi-layered disk, an optical pickup including the unit, and an optical recording and/or reproducing apparatus including the optical pickup, of which the optical pickup includes: a light source; an optical path changer to change the path of light emitted from the light source; a unit to remove crosstalk; an objective lens to focus incident light on a disk; and a photodetector detecting light reflected by the disk such that the unit to remove crosstalk separates light reflected by a target recording layer of the disk from light reflected by adjacent recording layers so that the light reflected by the target recording layer and the light reflected by the adjacent recording layers do not overlap on the photodetector.

摘要翻译： 一种用于去除多层盘中的串扰的单元，包括该单元的光学拾取器，以及包括光学拾取器的光学记录和/或再现设备，其中光学拾取器包括：光源; 用于改变从光源发射的光的路径的光路改变器; 一个去除串扰的单元; 将入射光聚焦在盘上的物镜; 以及光检测器，其检测由盘反射的光，使得去除串扰的单元将由盘的目标记录层反射的光与由相邻记录层反射的光分离，使得由目标记录层反射的光和由 相邻的记录层在光电检测器上不重叠。

公开(公告)号：US07885165B2

公开(公告)日：2011-02-08

申请号：US11332243

申请日：2006-01-17

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

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

IPC分类号： G11B7/12

CPC分类号： G11B7/1275 ,  G11B7/1353 ,  G11B7/1376 ,  G11B7/1378 ,  G11B7/13922 ,  G11B7/13925 ,  G11B2007/0006 ,  G11B2007/0013 ,  G11B2007/13727

摘要： 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.

摘要翻译： 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：US20070053274A1

公开(公告)日：2007-03-08

申请号：US11514253

申请日：2006-09-01

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

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

IPC分类号： G11B7/135

CPC分类号： G11B7/1369 ,  G11B7/1353 ,  G11B7/1365 ,  G11B7/139 ,  G11B2007/0006

摘要： 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.

摘要翻译： 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

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

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

IPC分类号： G02B27/40 ,  G02B7/04

CPC分类号： G11B7/1374 ,  G02B27/0068 ,  G11B7/13925 ,  G11B7/13927

摘要： 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.

摘要翻译： 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。