公开(公告)号：US06259668B1

公开(公告)日：2001-07-10

申请号：US09467385

申请日：1999-12-21

申请人： Chul-woo Lee ,  Jang-hoon Yoo

发明人： Chul-woo Lee ,  Jang-hoon Yoo

IPC分类号： G11B7135

CPC分类号： G11B7/1374 ,  G11B7/1353 ,  G11B7/13922 ,  G11B2007/0006 ,  G11B2007/13727

摘要： A recording/reproducing apparatus having an optical pickup device which is efficient in light use having little spherical aberration. The recording and/or reproducing apparatus includes an optical pickup having an objective lens, disposed opposite a disk, having a light passing region divided into central, intermediate and periphery regions corresponding to a near axis area, an intermediate axis area and a far axis area of incident light, where the curvature of the central and peripheral regions is optimized for a thin disk and that of the intermediate region is optimized for a thick disk, a light source irradiating light toward a disk through the objective lens; a photo detector for detecting light reflected from the disk, and a beam splitter, disposed between the objective lens and the light source, for transmitting light from the light source toward the objective lens and for diffracting light reflected from the disks toward the photo detector; and a processing unit to process an information signal to control the incident light generated by the light source, and to process the detected light from the photodetector. Therefore, the optical pickup device can be used for both compact disks (CDs) that are thick using light beam passing the near and intermediate regions of said objective lens, and digital video disks (DVDs) that are thin using light beam passing the near and far axis regions of said objective lens, and detect signals without picking up noise regardless of the thickness of the disk.

摘要翻译： 一种具有光学拾取装置的记录/再现装置，其具有很少的球面像差的光利用效率。 记录和/或再现装置包括具有与光盘相对设置的物镜的光学拾取器，具有被分成对应于近轴区域的中心，中间和周边区域的光通过区域，中间轴区域和远轴区域 入射光的中心区域和外围区域的曲率优化为薄盘，中间区域的曲率针对厚盘优化，光源通过物镜向盘照射光; 用于检测从光盘反射的光的光检测器和设置在物镜和光源之间的光束分离器，用于将光从光源向物镜透射，并将从光盘反射的光衍射到光检测器; 以及处理单元，处理信息信号以控制由光源产生的入射光，并处理来自光电检测器的检测光。 因此，光拾取装置可用于使用通过所述物镜的近中和中间区域的光束而使用厚度的光盘（CD），以及使用经过近距离的光束的薄的数字视频盘（DVD） 所述物镜的远轴区域，无论盘的厚度如何，都可以检测信号而不拾取噪声。

公开(公告)号：US06243216B1

公开(公告)日：2001-06-05

申请号：US08508250

申请日：1995-07-27

申请人： Jang-hoon Yoo ,  Pyong-yong Seong

发明人： Jang-hoon Yoo ,  Pyong-yong Seong

IPC分类号： G02B904

CPC分类号： G11B7/128 ,  G02F1/0102 ,  G02F1/0311 ,  G02F1/11

摘要： A fast responding optical modulating device for a high-density recording using in an optical pickup includes a light source, an optical modulator and a pair of lenses. The pair of lenses are so arranged that the distance between the lenses is shorter than the sum of each focal length of the lenses. The device can adjust an optical spot size at the center of the optical modulator by changing the position of the lenses without altering the whole length between the light source and optical modulator. Therefore, the device can increase the rise time as desired and the optical efficiency in optical modulation for high-density recording which uses a short wavelength light source, and moreover, has an effect of simplifying the high-density recording.

摘要翻译： 用于在光学拾取器中使用的高密度记录的快速响应光学调制装置包括光源，光学调制器和一对透镜。 这对透镜被布置成使得透镜之间的距离比透镜的每个焦距的总和短。 该装置可以通过改变透镜的位置而不改变光源和光调制器之间的整个长度来调节光调制器中心处的光点尺寸。 因此，该装置可以根据需要增加上升时间和使用短波长光源的高密度记录的光学调制中的光学效率，此外，具有简化高密度记录的效果。

公开(公告)号：US5986993A

公开(公告)日：1999-11-16

申请号：US779520

申请日：1997-01-07

申请人： Jang-hoon Yoo ,  Chul-woo Lee ,  Kyung-hwa Rim

发明人： Jang-hoon Yoo ,  Chul-woo Lee ,  Kyung-hwa Rim

IPC分类号： G02B13/00 ,  G11B7/00 ,  G11B7/125 ,  G11B7/135

CPC分类号： G11B7/1374 ,  G11B7/139 ,  G11B2007/0006

摘要： An optical pickup device which can obtain a stable reproduction signal by increasing the numerical aperture of an objective lens includes an objective lens facing a disc, a light source for radiating light to the disc via the objective lens, a beam splitter provided between the light source and objective lens for directing the light reflected from the disc in a path different from that of the light travelled from the light source, a photodetector for detecting the light reflected from the disc and travelled via the beam splitter, and a diaphragm provided between the beam splitter and light source and having a predetermined numerical aperture.

摘要翻译： 通过增加物镜的数值孔径可获得稳定的再现信号的光拾取装置包括面对盘的物镜，用于经由物镜将光照射到盘的光源，设置在光源之间的分束器 以及物镜，用于将光从盘反射的光线导向与从光源行进的光不同的路径;光电检测器，用于检测从盘反射并经由分束器行进的光，以及设置在光束之间的光阑 分光器和光源并具有预定的数值孔径。

公开(公告)号：US5909424A

公开(公告)日：1999-06-01

申请号：US933249

申请日：1997-09-18

申请人： Chul-woo Lee ,  Jang-hoon Yoo

发明人： Chul-woo Lee ,  Jang-hoon Yoo

IPC分类号： G02B7/00 ,  G02B3/08 ,  G02B3/10 ,  G02B13/00 ,  G02B13/18 ,  G11B7/00 ,  G11B7/08 ,  G11B7/135

CPC分类号： G11B7/1367 ,  G11B7/1374 ,  G11B2007/0006 ,  G11B2007/13727

摘要： An optical pickup device which is efficient in light use having little spherical aberration. The optical pickup device of an optical pickup includes an objective lens, disposed opposite a disk, having a light passing region divided into central, intermediate and periphery regions corresponding to a near axis area, an intermediate axis area and a far axis area of incident light, where the curvature of the central and peripheral regions is optimized for a thin disk and that of the intermediate region is optimized for a thick disk; a light source irradiating light toward a disk through the objective lens; a photo detector for detecting light reflected from the disk; and a beam splitter, disposed between the objective lens and the light source, for transmitting light from the light source toward the objective lens and for diffracting light reflected from the disks toward the photo detector. Therefore, the optical pickup device can be used for both compact disks (CDs) that are thick using light beam passing the near and intermediate regions of said objective lens, and digital video disks (DVDs) that are thin using light beam passing the near and far axis regions of said objective lens, and detect signals without picking up noise regardless of the thickness of the disk.

摘要翻译： 一种光学拾取装置，其具有很小的球面像差。 光学拾取器的光学拾取装置包括物镜，该物镜与盘相对设置，具有被分成对应于近轴区域的中心，中间和周边区域的光通过区域，入射光的中轴线区域和远轴区域 其中中央和外围区域的曲率针对薄盘进行了优化，中间区域的曲率针对厚盘进行了优化; 通过物镜向光盘照射光的光源; 用于检测从盘反射的光的光电检测器; 以及设置在物镜和光源之间的分束器，用于将光从光源向物镜透射，并将从光盘反射的光衍射到光检测器。 因此，光拾取装置可用于使用通过所述物镜的近中和中间区域的光束而使用厚度的光盘（CD），以及使用经过近距离的光束的薄的数字视频盘（DVD） 所述物镜的远轴区域，无论盘的厚度如何，都可以检测信号而不拾取噪声。

公开(公告)号：US5841754A

公开(公告)日：1998-11-24

申请号：US772362

申请日：1996-12-23

申请人： Chul-woo Lee ,  Jang-hoon Yoo

发明人： Chul-woo Lee ,  Jang-hoon Yoo

IPC分类号： G02B13/00 ,  G11B7/00 ,  G11B7/09 ,  G11B7/12 ,  G11B7/125 ,  G11B7/13 ,  G11B7/135

CPC分类号： G11B7/1353 ,  G11B7/131 ,  G11B7/1374 ,  G11B7/139 ,  G11B2007/0006 ,  G11B2007/13727

摘要： An optical pickup device which can obtain a stable reproduction signal by an increased numerical aperture of an objective lens. The optical pickup device includes an objective lens unit having an objective lens facing a disc and having a predetermined effective diameter and at least two auxiliary lenses provided in exterior sides of the objective lens for directing +1st-order diffracted light to a light path different from that of the light passing through the objective lens, a light source for irradiating light onto the disc through the objective lens, a light splitter interposed between the light source and the objective lens for directing the light reflected from the disc to a light path different from that from the light source, a photodetector for detecting the light reflected from the disc and transmitted via the light splitter, and at least two diffracted light detectors for detecting diffracted light incident from the auxiliary lenses. Therefore, a high reproduction signal and a stable track signal can be obtained.

摘要翻译： 一种光学拾取装置，其可以通过增加物镜的数值孔径获得稳定的再现信号。 所述光学拾取装置包括物镜单元，其具有面向盘并且具有预定有效直径的物镜和设置在所述物镜的外侧中的至少两个辅助透镜，用于将+ 1级衍射光引导到不同于 通过物镜的光的光源，用于通过物镜将光照射到盘上的光源，插入在光源和物镜之间的光分离器，用于将从盘反射的光引导到不同于 来自光源的光电检测器，用于检测从光盘反射并经由分光器传输的光;以及至少两个衍射光检测器，用于检测从辅助透镜入射的衍射光。 因此，可以获得高再现信号和稳定的轨道信号。

公开(公告)号：US08325242B2

公开(公告)日：2012-12-04

申请号：US12683506

申请日：2010-01-07

申请人： Eui-kuen Oh ,  Jang-hoon Yoo ,  Yong-wook Kim ,  Seong-ho Hwang ,  Douk-young Song

发明人： Eui-kuen Oh ,  Jang-hoon Yoo ,  Yong-wook Kim ,  Seong-ho Hwang ,  Douk-young Song

IPC分类号： H04N5/228

CPC分类号： G03B17/00 ,  H04N5/2254 ,  H04N5/23248

摘要： An image stabilizing apparatus may include a fixing member disposed to a lens assembly having a through hole of which a center coincides with an optical axis of the lens assembly, a moving member disposed to move perpendicular to the optical axis with respect to the fixing member having a lens holder projecting in a direction of the optical axis to hold a compensating lens, a driving portion causing the moving member to move in a first direction perpendicular to the optical axis and in a second direction perpendicular to the optical axis and the first direction, four position determining portions formed in the first direction and the second direction on an outer circumferential surface of the lens holder of the moving member, and four stoppers projecting from an outer circumferential surface of the through hole of the fixing member to the moving member.

摘要翻译： 图像稳定装置可以包括固定构件，其设置在透镜组件上，该透镜组件具有中心与透镜组件的光轴重合的通孔，移动构件设置成相对于固定构件垂直于光轴移动， 沿着光轴的方向突出以保持补偿透镜的透镜保持器，使得移动构件沿垂直于光轴的第一方向和垂直于光轴和第一方向的第二方向移动的驱动部， 在移动构件的透镜架的外周面上形成在第一方向和第二方向上的四个位置判定部以及从固定部件的通孔的外周面向移动部件突出的四个止动件。

公开(公告)号：US20110222164A1

公开(公告)日：2011-09-15

申请号：US13046881

申请日：2011-03-14

申请人： Jung-pa Seo ,  Jang-hoon Yoo

发明人： Jung-pa Seo ,  Jang-hoon Yoo

IPC分类号： G02B15/04

CPC分类号： G02B15/04 ,  G02B15/173 ,  G02B15/177

摘要： A lens system and a photographing apparatus including the lens system are provided, the lens system including a first sub lens system that includes a plurality of lens groups, and a second sub lens system that includes a replacement lens group that replaces or is replaced by some of the plurality of lens groups.

摘要翻译： 提供一种透镜系统和包括该透镜系统的拍摄设备，所述透镜系统包括包括多个透镜组的第一子透镜系统和包括替换或替换为一些的替换透镜组的第二子透镜系统 的多个透镜组。

公开(公告)号：US20110122269A1

公开(公告)日：2011-05-26

申请号：US12942332

申请日：2010-11-09

申请人： Liefeng ZHAO ,  Jang-hoon Yoo

发明人： Liefeng ZHAO ,  Jang-hoon Yoo

IPC分类号： H04N5/228 ,  G03B17/00

CPC分类号： G03B17/00 ,  H04N5/23248 ,  H04N5/23258 ,  H04N5/23287

摘要： 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.

摘要翻译： 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：US20100295952A1

公开(公告)日：2010-11-25

申请号：US12683506

申请日：2010-01-07

申请人： Eui-kuen OH ,  Jang-hoon Yoo ,  Yong-wook Kim ,  Seong-ho Hwang ,  Douk-young Song

发明人： Eui-kuen OH ,  Jang-hoon Yoo ,  Yong-wook Kim ,  Seong-ho Hwang ,  Douk-young Song

IPC分类号： H04N5/228 ,  G03B17/00

CPC分类号： G03B17/00 ,  H04N5/2254 ,  H04N5/23248

摘要： An image stabilizing apparatus may include a fixing member disposed to a lens assembly having a through hole of which a center coincides with an optical axis of the lens assembly, a moving member disposed to move perpendicular to the optical axis with respect to the fixing member having a lens holder projecting in a direction of the optical axis to hold a compensating lens, a driving portion causing the moving member to move in a first direction perpendicular to the optical axis and in a second direction perpendicular to the optical axis and the first direction, four position determining portions formed in the first direction and the second direction on an outer circumferential surface of the lens holder of the moving member, and four stoppers projecting from an outer circumferential surface of the through hole of the fixing member to the moving member.

摘要翻译： 图像稳定装置可以包括固定构件，其设置在透镜组件上，该透镜组件具有中心与透镜组件的光轴重合的通孔，移动构件设置成相对于固定构件垂直于光轴移动， 沿着光轴的方向突出以保持补偿透镜的透镜保持器，使得移动构件沿垂直于光轴的第一方向和垂直于光轴和第一方向的第二方向移动的驱动部， 在移动构件的透镜架的外周面上形成在第一方向和第二方向上的四个位置判定部以及从固定部件的通孔的外周面向移动部件突出的四个止动件。

公开(公告)号：US20080068957A1

公开(公告)日：2008-03-20

申请号：US11944863

申请日：2007-11-26

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

发明人： 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分类号： G11B5/58

CPC分类号： G11B7/00718 ,  G11B7/0901 ,  G11B7/0938 ,  G11B7/0941 ,  G11B7/0956

摘要： 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.

摘要翻译： 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。