公开(公告)号：US20060152638A1

公开(公告)日：2006-07-13

申请号：US11327394

申请日：2006-01-09

申请人： Jong-chul Choi ,  Hee-Kyung Kim ,  Tae-Kyung Kim

发明人： Jong-chul Choi ,  Hee-Kyung Kim ,  Tae-Kyung Kim

IPC分类号： G02F1/13

CPC分类号： G02F1/1393 ,  G02F1/133371 ,  G02F1/134309 ,  G11B7/1369

摘要： A liquid crystal device for birefringence compensation and an optical pickup and an optical recording and/or reproducing apparatus that employ the liquid crystal device as a birefringence compensation device are provided. The liquid crystal device includes a liquid crystal layer in which liquid crystal is vertically aligned when an electric field is not applied thereto, and is radially aligned in axial symmetry when the electric field is applied thereto. As a result, phase variation distribution corresponding to birefringence distribution occurring on an optical information storage medium is formed and a phase variation is adjusted according to the magnitude of the applied electric field.

摘要翻译： 提供了一种用于双折射补偿的液晶装置以及采用液晶装置作为双折射补偿装置的光拾取器和光学记录和/或再现装置。 液晶装置包括在不施加电场时液晶垂直取向的液晶层，并且当施加电场时，液晶层在轴向对称地径向对准。 结果，形成对应于在光学信息存储介质上出现的双折射分布的相位变化分布，并且根据所施加的电场的大小来调整相位变化。

公开(公告)号：US07321542B2

公开(公告)日：2008-01-22

申请号：US11033625

申请日：2005-01-13

申请人： Jong-chul Choi ,  Tae-kyung Kim

发明人： Jong-chul Choi ,  Tae-kyung Kim

IPC分类号： G11B7/00 ,  G02B5/04

CPC分类号： G02B5/04 ,  G02B19/0028 ,  G02B19/0052 ,  G02B27/0972

摘要： A beam shaping prism used in an optical pickup, the beam shaping prism includes a first prism having an incident surface and a second prism having an inclined surface. Since a beam entering the beam shaping prism makes right angles with a beam emerging therefrom, it is easy to optically arrange and assemble elements.

摘要翻译： 在光学拾取器中使用的光束整形棱镜，光束整形棱镜包括具有入射表面的第一棱镜和具有倾斜表面的第二棱镜。 由于进入光束整形棱镜的光束与从其出射的光束成直角，因此易于光学地布置和组装元件。

公开(公告)号：US06847499B2

公开(公告)日：2005-01-25

申请号：US10460670

申请日：2003-06-13

申请人： Jong-chul Choi ,  Jin-kyung Lee ,  Chong-sam Chung ,  Tae-kyung Kim ,  Kwang Kim ,  Jin-won Lee

发明人： Jong-chul Choi ,  Jin-kyung Lee ,  Chong-sam Chung ,  Tae-kyung Kim ,  Kwang Kim ,  Jin-won Lee

IPC分类号： G11B7/08 ,  G11B7/12 ,  G11B7/135 ,  G11B7/22 ,  G02B7/02

CPC分类号： G11B7/22 ,  G11B7/123

摘要： An optical head includes a substrate, a laser diode, a photodetector, an objective lens, a prism, and an optical element. The laser diode is installed on the substrate and emits light. The photodetector is installed on the substrate and receives the light. The objective lens is installed on a first side of the substrate and focuses the light emitted from the laser diode onto a recording surface of a disc. The prism is installed on a second side of the substrate, transmits the light emitted from the laser diode toward the objective lens, and transmits the light reflected from the recording surface toward the photodetector. The optical element adjusts an optical path formed between the substrate and the prism.

摘要翻译： 光头包括基板，激光二极管，光电检测器，物镜，棱镜和光学元件。 激光二极管安装在基板上并发光。 光电检测器安装在基板上并接收光。 物镜安装在基板的第一侧上，并将从激光二极管发出的光聚焦到光盘的记录表面上。 棱镜安装在基板的第二面上，将从激光二极管发射的光透射到物镜，并将从记录表面反射的光透射到光电检测器。 光学元件调节在基板和棱镜之间形成的光路。

公开(公告)号：US20050152051A1

公开(公告)日：2005-07-14

申请号：US11033625

申请日：2005-01-13

申请人： Jong-chul Choi ,  Tae-kyung Kim

发明人： Jong-chul Choi ,  Tae-kyung Kim

IPC分类号： G02B5/04 ,  G02B27/09 ,  G11B7/12

CPC分类号： G02B5/04 ,  G02B19/0028 ,  G02B19/0052 ,  G02B27/0972

摘要： A beam shaping prism used in an optical pickup, the beam shaping prism includes a first prism having an incident surface and a second prism having an inclined surface. Since a beam entering the beam shaping prism makes right angles with a beam emerging therefrom, it is easy to optically arrange and assemble elements.

摘要翻译： 在光学拾取器中使用的光束整形棱镜，光束整形棱镜包括具有入射表面的第一棱镜和具有倾斜表面的第二棱镜。 由于进入光束整形棱镜的光束与从其出射的光束成直角，因此易于光学地布置和组装元件。

公开(公告)号：US20070258343A1

公开(公告)日：2007-11-08

申请号：US11645679

申请日：2006-12-27

申请人： Moon-Il Jung ,  Jong-chul Choi ,  Taek-seong Jeong

发明人： Moon-Il Jung ,  Jong-chul Choi ,  Taek-seong Jeong

IPC分类号： G11B7/00 ,  G11B7/24

CPC分类号： G11B7/00781 ,  G11B7/0033 ,  G11B7/24044 ,  G11B7/24047

摘要： An optical recording medium in which interference patterns formed from interference between signal light and reference light are recorded as data and a recording/reproducing method and apparatus for the optical recording medium. The optical recording medium including at least a recording layer in which predetermined data is recorded, wherein a thickness of a portion of the recording layer is larger than a thickness of another portion of the recording layer, wherein data is recorded in the thicker region, and the additional information of a recording condition and/or a reproducing condition is recorded in the thinner region.

摘要翻译： 将由信号光和参考光之间的干涉形成的干涉图案作为数据记录的光记录介质和用于光记录介质的记录/再现方法和装置。 所述光记录介质至少包括其中记录有预定数据的记录层，其中所述记录层的一部分的厚度大于所述记录层的另一部分的厚度，其中数据被记录在较厚的区域中，以及 记录条件和/或再现条件的附加信息被记录在较薄区域中。

公开(公告)号：US09706902B2

公开(公告)日：2017-07-18

申请号：US13529086

申请日：2012-06-21

申请人： Sergey Menabde ,  Jong-chul Choi ,  Hae-in Chung

发明人： Sergey Menabde ,  Jong-chul Choi ,  Hae-in Chung

IPC分类号： G02B15/14 ,  A61B1/00 ,  G02B23/24

CPC分类号： A61B1/00096 ,  G02B23/243

摘要： An objective lens for an endoscope, an actuator for focusing the objective lens, and an endoscope system including the objective lens are provided. The objective lens for an endoscope includes a plurality of lenses and a stop, and an optical element disposed adjacent to the stop, wherein a focal length may be varied by moving the optical element in a direction different from an optical axis.

公开(公告)号：US07870573B2

公开(公告)日：2011-01-11

申请号：US11645679

申请日：2006-12-27

申请人： Moon-il Jung ,  Jong-chul Choi ,  Taek-seong Jeong

发明人： Moon-il Jung ,  Jong-chul Choi ,  Taek-seong Jeong

IPC分类号： G11B7/00

CPC分类号： G11B7/00781 ,  G11B7/0033 ,  G11B7/24044 ,  G11B7/24047

摘要： An optical recording medium in which interference patterns formed from interference between signal light and reference light are recorded as data and a recording/reproducing method and apparatus for the optical recording medium. The optical recording medium including at least a recording layer in which predetermined data is recorded, wherein a thickness of a portion of the recording layer is larger than a thickness of another portion of the recording layer, wherein data is recorded in the thicker region, and the additional information of a recording condition and/or a reproducing condition is recorded in the thinner region.

摘要翻译： 将由信号光和参考光之间的干涉形成的干涉图案作为数据记录的光记录介质和用于光记录介质的记录/再现方法和装置。 所述光记录介质至少包括其中记录有预定数据的记录层，其中所述记录层的一部分的厚度大于所述记录层的另一部分的厚度，其中数据被记录在较厚的区域中，以及 记录条件和/或再现条件的附加信息被记录在较薄区域中。

公开(公告)号：US20080316894A1

公开(公告)日：2008-12-25

申请号：US11960992

申请日：2007-12-20

申请人： Jong-chul Choi

发明人： Jong-chul Choi

IPC分类号： G11B7/00

CPC分类号： G11B7/083 ,  G11B7/0065 ,  G11B7/1369 ,  G11B7/139

摘要： Provided is a holographic recording/reproducing apparatus including an aperture device having aperture of variable size. The holographic recording/reproducing apparatus includes a light source, an optical system to divide light emitted from the light source into a recording reference beam and a recording signal beam, and direct the recording reference beam and the recording signal beam to a same location of a holographic recording medium, a spatial light modulator (SLM) to modulate the recording signal beam into a two-dimensional signal pattern, a two-dimensional photodetector to detect a reproducing signal beam that is refracted via the holographic recording medium, and the aperture to limit a size of a spot of the reproducing signal beam, wherein the size of the aperture is variable.

摘要翻译： 提供了一种包括具有可变尺寸孔径的孔径装置的全息记录/再现装置。 全息记录/再现装置包括光源，将从光源发射的光分成记录参考光束和记录信号光束的光学系统，并将记录参考光束和记录信号光束引导到相同的位置 全息记录介质，用于将记录信号光束调制为二维信号图案的空间光调制器（SLM）;二维光电检测器，用于检测通过全息记录介质折射的再现信号光束，以及限制光圈 再现信号光束的斑点的尺寸，其中孔径的尺寸是可变的。

公开(公告)号：US07440361B2

公开(公告)日：2008-10-21

申请号：US10778169

申请日：2004-02-17

申请人： Jin-won Lee ,  Kwang Kim ,  Seok-jung Kim ,  Chong-sam Chung ,  Hea-jung Suh ,  Jong-chul Choi

发明人： Jin-won Lee ,  Kwang Kim ,  Seok-jung Kim ,  Chong-sam Chung ,  Hea-jung Suh ,  Jong-chul Choi

IPC分类号： G11B7/00

CPC分类号： G11B7/127 ,  G11B7/122 ,  G11B7/123 ,  G11B7/22

摘要： An optical pickup apparatus including a swing arm pivotably installed in a tracking direction with respect to a disc, and an optical pickup unit supported by the swing arm and driven in a focusing direction, wherein the optical pickup unit includes a laser diode, an objective lens to focus light emitted from the laser diode on a recording surface of the disc, and a heat sink plate to dissipate heat generated from the laser diode, wherein the heat sink plate is provided close to the disc so as to be directly exposed to wind generated during rotation of the disc.

摘要翻译： 一种光拾取装置，其特征在于，包括：摆动臂，其以相对于盘的跟踪方向可枢转地安装;以及光拾取单元，其由所述摆臂支撑并沿着聚焦方向被驱动，其中所述光学拾取单元包括激光二极管，物镜 将从激光二极管发射的光聚焦在盘的记录表面上，以及散热板，以消散由激光二极管产生的热量，其中散热板靠近盘设置，以便直接暴露于产生的风 在盘旋转期间。

公开(公告)号：US07957248B2

公开(公告)日：2011-06-07

申请号：US11642779

申请日：2006-12-21

申请人： Jong-chul Choi ,  Taek-seong Jeong ,  Moon-Il Jung

发明人： Jong-chul Choi ,  Taek-seong Jeong ,  Moon-Il Jung

IPC分类号： G11B7/00

CPC分类号： G11B7/0065 ,  G11B7/00781

摘要： A hologram recording and/or reproducing apparatus, a hologram recording and/or reproducing method, and a hologram recording medium include a data processing unit to generate a data page which includes recording data and a reference page which includes predetermined patterns to prevent distortion of a signal from occurring when the data page is reproduced, and a light processing unit to record the data page and reference page on a hologram recording medium. The apparatus and method correct distortion and deformation that may occur in part of an image due to aberrations, enhancing compatibility between hologram recording and/or reproducing apparatuses.

摘要翻译： 全息记录和/或再现装置，全息图记录和/或再现方法以及全息图记录介质包括数据处理单元，用于生成包括记录数据的数据页和包括预定图案的参考页，以防止 当再现数据页时发生的信号，以及在全息图记录介质上记录数据页和参考页的光处理单元。 该装置和方法校正由于像差而在图像的一部分中可能发生的变形和变形，增强全息图记录和/或再现装置之间的兼容性。