公开(公告)号：US20110222164A1

公开(公告)日：2011-09-15

申请号：US13046881

申请日：2011-03-14

Applicant: Jung-pa Seo ,  Jang-hoon Yoo

Inventor： Jung-pa Seo ,  Jang-hoon Yoo

IPC: G02B15/04

CPC classification number: G02B15/04 ,  G02B15/173 ,  G02B15/177

Abstract: 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.

Abstract translation: 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

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：US20100295952A1

公开(公告)日：2010-11-25

申请号：US12683506

申请日：2010-01-07

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

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

IPC: H04N5/228 ,  G03B17/00

CPC classification number: G03B17/00 ,  H04N5/2254 ,  H04N5/23248

Abstract: 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.

Abstract translation: 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：US07529039B2

公开(公告)日：2009-05-05

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: G02B13/18 ,  G02B3/02 ,  G02B3/08 ,  G11B7/00 ,  G11B7/135

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 元件设置在第一和第二表面中的至少一个上，并且具有fD / f <5的折射率，fD是衍射光学元件的焦距，f是物镜的焦距。 物镜的数值孔径为0.75以上。

公开(公告)号：US20080068957A1

公开(公告)日：2008-03-20

申请号：US11944863

申请日：2007-11-26

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: G11B5/58

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。

公开(公告)号：US20060092789A1

公开(公告)日：2006-05-04

申请号：US11304636

申请日：2005-12-16

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: G11B7/00

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划分成多个扇区的装置，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报头区检测器，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;以及用于计算的平衡计算器 幅度Ivfo 1和幅度Ivfo 3的平衡。

公开(公告)号：US06938890B2

公开(公告)日：2005-09-06

申请号：US09725879

申请日：2000-11-30

Applicant: Jang-hoon Yoo ,  Kun-ho Cho ,  Seung-tae Jung ,  Chul-woo Lee ,  Dong-ho Shin

Inventor： Jang-hoon Yoo ,  Kun-ho Cho ,  Seung-tae Jung ,  Chul-woo Lee ,  Dong-ho Shin

IPC: G02B13/00 ,  G02B3/08 ,  G02B13/18 ,  G11B7/085 ,  G11B7/09 ,  G11B7/095 ,  G11B7/135 ,  G11B7/24 ,  G11B7/00

CPC classification number: G11B7/13927 ,  G11B7/1362 ,  G11B7/1374 ,  G11B7/1378 ,  G11B2007/13725

Abstract: An optical pickup includes a light source emitting a laser beam and an optical path changing unit altering a traveling path of an incident beam. An objective lens, disposed on an optical path between the optical path changing unit and an optical disk, focuses the incident beam from the light source to form a light spot on the optical disk of the objective lens. The optical pickup further includes a photodetector and an detecting-correcting unit, arranged on the optical path between the optical path changing unit and the objective lens, performing at least one of detecting the thickness of the optical disk and correcting aberration caused by thickness variations of the optical disk. The objective lens includes a first transmitting portion divergently transmitting an incident beam, where the first transmitting portion is at a relatively near-axis region from an optical axis of the objective lens. A second transmitting portion transmits the incident beam, where the second transmitting portion is arranged facing the first transmitting portion. A first reflecting portion condenses and reflects the incident beam from the first transmitting portion, where the first reflecting portion is formed around the second transmitting portion. A second reflecting portion condenses and reflects the incident beam from the first reflecting portion towards the second transmitting portion, where the second reflecting portion is formed around the first transmitting portion.

Abstract translation: 光拾取器包括发射激光束的光源和改变入射光束的行进路径的光路改变单元。 设置在光路改变单元和光盘之间的光路上的物镜聚焦来自光源的入射光束，以在物镜的光盘上形成光斑。 光学拾取器还包括光电检测器和检测校正单元，其布置在光路改变单元和物镜之间的光路上，执行检测光盘的厚度和校正由厚度变化引起的像差中的至少一个 光盘。 物镜包括发射入射光束的第一透射部分，其中第一透射部分处于距离物镜的光轴的相对近轴的区域。 第二发送部分透射入射光束，其中第二透射部分布置成面对第一透射部分。 第一反射部分将来自第一透射部分的入射光束冷凝并反射，其中第一反射部分围绕第二透射部分形成。 第二反射部分将来自第一反射部分的入射光束聚集并反射到第二透射部分，其中第二反射部分围绕第一透射部分形成。

公开(公告)号：US06657942B2

公开(公告)日：2003-12-02

申请号：US09778856

申请日：2001-02-08

Applicant: Chul-woo Lee ,  Joong-eon Seo ,  Seung-tae Jung ,  Myong-do Ro ,  Kun-ho Cho ,  Dong-seob Jang ,  Jang-hoon Yoo ,  Dae-sik Kim

Inventor： Chul-woo Lee ,  Joong-eon Seo ,  Seung-tae Jung ,  Myong-do Ro ,  Kun-ho Cho ,  Dong-seob Jang ,  Jang-hoon Yoo ,  Dae-sik Kim

IPC: G11B700

CPC classification number: G11B7/1356 ,  G11B7/08576 ,  G11B7/0908 ,  G11B7/122 ,  G11B7/1362 ,  G11B7/1376 ,  G11B7/1384 ,  G11B7/24

Abstract: A swing-arm type optical recording and reproducing apparatus and an optical disk applicable to the same. The optical disk includes a substrate having an information recording surface to record and reproduce an information signal, and a protective layer which is provided on the information recording surface and whose surface facing a slider is a flat even surface so that variations in a floating height of the slider can be reduced. The optical recording and reproducing apparatus further includes, an optical head having a light source provided at a swing arm to emit light of a predetermined wavelength; an optical path changing means provided in the optical path of the light emitted from the light source for changing the proceeding path of incident light; a collimating lens installed at the slider to preliminarily converge the light emitted from the light source and entering via the optical path changing means; an objective lens installed at the slider to converge the light which is emitted from the light source and enters via the optical path changing means to form an optical spot on the optical disk; and a photodetector to receive the light which is reflected from the optical disk and enters via the objective lens, the collimating lens, and the optical path changing means. The optical head detects an information signal and an error signal in order to reduce defocus due to variations in ambient temperature and variations in the wavelength of the light of the light source.

Abstract translation: 一种摆臂式光学记录和再现装置以及可应用于其的光盘。 光盘包括具有信息记录表面以记录和再现信息信号的基板，以及设置在信息记录表面上并且其面向滑块的表面是平坦均匀表面的保护层，使得浮动高度的变化 滑块可以减少。 光学记录和再现装置还包括：光头，其具有设置在摆臂处以发射预定波长的光的光源; 光路改变装置，设置在从光源发射的光的光路中，用于改变入射光的行进路径; 准直透镜，安装在滑块上，以预先会聚从光源射出的光并通过光路改变装置进入; 安装在滑块上的物镜，其会聚从光源射出的光，经由光路改变装置进入，以在光盘上形成光点; 以及光电检测器，用于接收从光盘反射并经由物镜，准直透镜和光路改变装置进入的光。 光头检测信息信号和误差信号，以便减少由于环境温度的变化和光源的光的波长变化引起的散焦。

公开(公告)号：US6114689A

公开(公告)日：2000-09-05

申请号：US299664

申请日：1999-04-27

Applicant: Kun-ho Cho ,  Jang-hoon Yoo ,  Yong-hoon Lee ,  Chul-woo Lee ,  Chong-sam Chung

Inventor： Kun-ho Cho ,  Jang-hoon Yoo ,  Yong-hoon Lee ,  Chul-woo Lee ,  Chong-sam Chung

IPC: G02B3/08 ,  G02B5/18 ,  G02B13/00 ,  G11B7/1374 ,  G02B3/00 ,  G11B7/12

CPC classification number: G11B7/1353 ,  G02B3/08 ,  G02B5/1876 ,  G11B7/122 ,  G11B7/1362 ,  G11B7/1374 ,  G11B7/1384 ,  G11B7/1387

Abstract: An optical pickup device includes a light module, emitting light and receiving light reflected from a recording medium, and a solid immersion lens (SIL) member disposed in an optical path between the light module and the recording medium. The SIL has a planar surface facing the recording medium and a plurality of elliptically curved surfaces opposite the recording medium. The elliptically curved surfaces have different radii of curvature arranged symmetrical with respect to a central axis for focusing the incident light to form a tight beam spot on a recording plane of the recording medium.

Abstract translation: 一种光学拾取装置，包括发光和接收从记录介质反射的光的光模块和设置在光模块和记录介质之间的光路中的固体浸没透镜（SIL）部件。 SIL具有面向记录介质的平面和与记录介质相对的多个椭圆曲面。 椭圆曲面具有相对于中心轴对称布置的不同的曲率半径，用于聚焦入射光以在记录介质的记录平面上形成紧束光斑。

公开(公告)号：US6081498A

公开(公告)日：2000-06-27

申请号：US14621

申请日：1998-01-28

Applicant: Jang-hoon Yoo ,  Chul-woo Lee ,  Chong-sam Chung

Inventor： Jang-hoon Yoo ,  Chul-woo Lee ,  Chong-sam Chung

IPC: G11B7/135 ,  G11B7/00 ,  G11B7/12 ,  G11B7/125

CPC classification number: G11B7/1365 ,  G11B7/13922 ,  G11B2007/0006

Abstract: An optical pickup is compatible with at least two types of optical recording media each using light beams having different wavelengths from one another and which are used for recording and reproducing information. The optical pickup includes a first laser light source for emitting a first light beam having a relatively long wavelength, and a second laser light source for emitting a second light beam having a relatively short wavelength. A beam splitting plate transmits the first light beam and reflects the second light beam toward a collimator. The collimator collimates the light beam incident from the beam splitting plate to transmit the collimated light beam into an objective lens. The objective lens is designed so that the second light beam is focused on the information recording surface of a second optical recording medium whose information recording surface is closer to the objective lens than the information recording surface of the first optical recording medium, to form an optical spot optimized to the second optical recording medium. The optical distance from the first laser light source to the information recording surface of a first optical recording medium whose information recording surface is relatively farther from the objective lens, is shorter than the optical distance from the second laser light source to the information recording surface of the second optical recording medium so that spherical aberration occurring when the first light beam is used is removed. An aberration correction plate is located on an optical path between the first laser light source and the beam splitting plate, and corrects an optical aberration occurring when the beam splitting plate is used.

Abstract translation: 光学拾取器与至少两种类型的光学记录介质兼容，每种光学记录介质使用彼此不同波长的光束并且用于记录和再现信息。 光学拾取器包括用于发射具有较长波长的第一光束的第一激光光源和用于发射具有较短波长的第二光束的第二激光光源。 分束板透射第一光束并将第二光束反射到准直仪。 准直器准直从分束板入射的光束，将准直光束传输到物镜中。 物镜被设计成使得第二光束聚焦在其信息记录表面比第一光学记录介质的信息记录表面更靠近物镜的第二光学记录介质的信息记录表面上，以形成光学 对第二光记录介质进行优化。 从第一激光光源到其信息记录表面相对远离物镜的第一光记录介质的信息记录表面的光学距离比从第二激光光源到信息记录表面的光学距离短 第二光学记录介质，使得当使用第一光束时发生的球面像差被去除。 像差校正板位于第一激光光源和分束板之间的光路上，并且校正当使用分束板时发生的光学像差。