公开(公告)号：US06509997B2

公开(公告)日：2003-01-21

申请号：US09938305

申请日：2001-08-24

Applicant: Jae-yong Eum ,  Seung-tae Jung

Inventor： Jae-yong Eum ,  Seung-tae Jung

IPC: G02B2608

CPC classification number: G02B26/004 ,  G02B1/06 ,  G02B26/08

Abstract: An optical scanning apparatus for performing scanning by focusing a beam scattered by a bubble which moves at a predetermined speed within a closed loop fluid pipe, thereby forming an image. The optical scanning apparatus includes a light source for emitting light; a closed loop fluid pipe; a fluid contained in the fluid pipe, transmitting the light emitted from the light source; at least one bubble contained in the fluid pipe, scattering incident light; a pump installed at one side of the fluid pipe, circulating the bubble at a predetermined speed; and an image formation lens focusing the light emitted by the light source and scattered by the at least one bubble to form an image on a predetermined scanning line. Accordingly, the volume of the optical scanning apparatus can be reduced, and the optical scanning apparatus can be easily manufactured. Consequently, productivity can be increased.

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：US5874132A

公开(公告)日：1999-02-23

申请号：US521846

申请日：1995-08-31

Applicant: Seung-tae Jung

Inventor： Seung-tae Jung

IPC: B32B37/00 ,  B29C43/18 ,  B29C43/22 ,  B29C67/00 ,  B29D17/00 ,  G11B7/24 ,  G11B7/26 ,  B05D3/12 ,  B05D3/00

CPC classification number: G11B7/263 ,  B29C43/18 ,  B29C43/222 ,  B29D17/005 ,  B29D17/007 ,  B29C2043/463

Abstract: An optical recording medium manufacturing apparatus includes transfer means, a substrate transfer table transferred by the transfer means at a predetermined speed, a drum facing the substrate transfer table and rotating so that the speed of its outer circumferential surface is the same as the speed of a substrate transfer table, a stamp installed on the outer circumferential surface of the drum forming an information recording pit pattern, and resin supply means for injecting molten resin between the stamp and the substrate supported on the table. Since a multi-layer unit can be molded continuously by using the molten resin according to the present invention, there is the advantage of improved productivity.

Abstract translation: 光记录介质制造装置包括转印装置，以预定速度由转印装置转印的基板转印工作台，面向基板转印工作台的转鼓，其旋转的外圆周表面的速度与 基板转印台，安装在形成信息记录凹坑图案的滚筒的外圆周表面上的印模，以及用于在印模和支撑在工作台上的基板之间注入熔融树脂的树脂供给装置。 由于可以通过使用根据本发明的熔融树脂连续地模制多层单元，所以具有提高的生产率的优点。

公开(公告)号：US5820794A

公开(公告)日：1998-10-13

申请号：US522489

申请日：1995-08-31

Applicant: Seung-tae Jung

Inventor： Seung-tae Jung

IPC: B29C43/20 ,  B29C35/08 ,  B29C43/34 ,  B29C45/26 ,  B29D17/00 ,  B29L17/00 ,  G11B7/24 ,  G11B7/26 ,  B29D11/00

CPC classification number: B29C35/0888 ,  B29C45/263 ,  B29D17/005 ,  G11B7/26 ,  G11B7/263 ,  B29L2017/005 ,  Y10S425/81 ,  Y10S425/812

Abstract: A multi-layer optical recording medium manufacturing method and apparatus thereof forms a resin layer having a second recording layer on a first recording layer. The first recording layer includes a reflecting layer and a first recording layer sequentially formed on a transparent substrate. The multi-layer optical recording medium manufacturing apparatus includes an upper and a lower mold on which is respectively fixed the transparent substrate and a stamp such that they are facing each other. Communicating holes formed in the transparent substrate and the stamp are formed in center portions of each of the molds. A punch member capable of vertical movement is established in the communicating hole of the lower mold, and resin supply established in the communicating hole of the upper mold. The above apparatus has the advantage of improving productivity of the manufacture of a multi-layer optical recording medium.

Abstract translation: 多层光记录介质的制造方法和装置在第一记录层上形成具有第二记录层的树脂层。 第一记录层包括依次形成在透明基板上的反射层和第一记录层。 多层光记录介质制造装置包括上模和下模，其上分别固定透明基板和印模，使得它们彼此面对。 形成在透明基板和印模中的通孔形成在每个模具的中心部分。 在下模具的连通孔中建立能够垂直移动的冲头构件，并且在上模的连通孔中建立树脂供给。 上述装置具有提高制造多层光记录介质的生产率的优点。

公开(公告)号：US07088664B2

公开(公告)日：2006-08-08

申请号：US10078459

申请日：2002-02-21

Applicant: Dae-sik Kim ,  Seung-tae Jung ,  Cheol-sung Yeon ,  Kun-ho Cho

Inventor： Dae-sik Kim ,  Seung-tae Jung ,  Cheol-sung Yeon ,  Kun-ho Cho

IPC: G11B7/135

CPC classification number: G11B7/1356 ,  G02B5/04 ,  G11B7/12 ,  G11B7/124

Abstract: A reflection type compound prism and an optical pickup apparatus employing the same. As a light beam is passed through the compound prism, a size of the light beam in a direction perpendicular to a reference plane is reduced by a first reflection surface, propagated toward an objective lens by second and third reflection surfaces and the size restored by reflecting the light beam from a fourth reflection surface forming an angle less than 45° with respect to the reference plane so that a height of an optical system is reducible to obtain a small thin optical pickup with a desired NA. The second and third reflection surfaces are spaced apart in a direction perpendicular to the reference plane by an amount close to a diameter of the light beam at a point of incidence of the light beam with the compound prism.

公开(公告)号：US07020950B2

公开(公告)日：2006-04-04

申请号：US09955061

申请日：2001-09-19

Applicant: Soon-kyo Hong ,  Chul-woo Lee ,  Seung-tae Jung ,  Sung-hoon Choa

Inventor： Soon-kyo Hong ,  Chul-woo Lee ,  Seung-tae Jung ,  Sung-hoon Choa

IPC: G11B5/127 ,  H04R31/00

CPC classification number: G11B33/08 ,  B23K26/0823 ,  B23K26/1462 ,  Y10T29/49025 ,  Y10T29/49036 ,  Y10T29/53165

Abstract: A disc balancing device and a method thereof. The disc balancing device includes a disc assembly having a driving source, and a disc rotatably disposed at the driving source, a displacement measurement unit measuring vibration in the rotation of the disc assembly, a phase angle measurement unit measuring a phase angle from a reference point of the disc assembly in the rotation of the disc assembly, an operation/control unit calculating an eccentric mass and an eccentric position of the disc assembly, by using the biased vibration measured in the displacement measurement unit and the phase angle measured in the phase angle measurement unit, and a laser cutter tracking and laser-cutting the side portion of the disc corresponding to the eccentric position according to the information from the operation/control unit, whereby the eccentric mass of the disc assembly is balanced to reduce vibration in the rotation.

Abstract translation: 一种光盘平衡装置及其方法。 盘平衡装置包括具有驱动源的盘组件和可旋转地设置在驱动源处的盘，测量盘组件的旋转中的振动的位移测量单元，相位角测量单元，其从参考点 通过使用在位移测量单元中测量的偏置振动和在相位角测量的相位角来计算盘组件的偏心质量和偏心位置的操作/控制单元 测量单元和激光切割器根据来自操作/控制单元的信息跟踪和激光切割对应于偏心位置的盘的侧部，由此平衡盘组件的偏心质量以减少旋转中的振动 。

公开(公告)号：US5976617A

公开(公告)日：1999-11-02

申请号：US115241

申请日：1998-07-14

Applicant: Hyeon-chang Hong ,  Byung-il Cho ,  Seung-tae Jung

Inventor： Hyeon-chang Hong ,  Byung-il Cho ,  Seung-tae Jung

IPC: G11B7/00 ,  G11B7/0045 ,  G11B7/0055 ,  G11B7/125 ,  G11B7/24 ,  G11B7/26 ,  G11B7/30 ,  B05D5/06

CPC classification number: G11B7/126 ,  G11B7/26 ,  G11B7/00454 ,  G11B7/00557 ,  G11B7/24

Abstract: A method of initializing a phase transformation-type optical disk. The initialization method includes the steps of: (a) preparing a phase transformation-type optical disk in which a first dielectric layer, a recording layer including a small amount of crystalline structure in a major amorphous structure, a second dielectric layer and a reflective layer are sequentially deposited on a substrate; (b) irradiating a high power laser beam, which is enough to heat the recording layer to a temperature above its melting point, onto the optical disk, thereby transforming the crystalline structure in the recording layer into an amorphous structure; and (c) irradiating a lower power laser beam, which is capable of heating the recording layer to a temperature range above a recrystallization temperature and below its melting point, onto the optical disk, thereby transforming the amorphous structure of the recording layer into the crystalline structure.

Abstract translation: 初始化相变型光盘的方法。 初始化方法包括以下步骤：（a）制备相变型光盘，其中第一介电层，主要非晶结构中包含少量晶体结构的记录层，第二介电层和反射层 顺序地沉积在基底上; （b）将足以将记录层加热到高于其熔点的温度的大功率激光束照射到光盘上，从而将记录层中的晶体结构转变为非晶结构; 和（c）将能够将记录层加热到高于再结晶温度并低于其熔点的温度范围的低功率激光束照射到光盘上，从而将记录层的非晶结构转变成晶体 结构体。

公开(公告)号：US5628468A

公开(公告)日：1997-05-13

申请号：US390865

申请日：1995-02-17

Applicant: Seung-tae Jung ,  Jung-hoe Kim ,  Dong-heon Kang ,  Hyeon-yong Jang

Inventor： Seung-tae Jung ,  Jung-hoe Kim ,  Dong-heon Kang ,  Hyeon-yong Jang

IPC: G11B7/00 ,  G11B7/003 ,  G11B23/08 ,  G11B23/087 ,  G11B23/093 ,  G11B23/00 ,  G11B25/00

CPC classification number: G11B7/0031 ,  G11B23/093

Abstract: An optical tape cassette and a player for using the cassette. The optical tape cassette includes a drum on which optical tape is wound and two tape reels for supplying and winding the tape. The cassette player includes a driver having two rotating members which can be connected to the drum and tape take-up reel for driving the drum and tape take-up reel, respectively, and an optical pickup for projecting a light beam onto the optical tape which is wound about the periphery of the drum, thereby realizing a simplified structure and easy handling for home use.

Abstract translation: 一种用于使用盒式磁带的光带盒和播放器。 该光带盒包括一卷筒，该卷筒上缠绕有光带，以及两个用于提供和卷绕带子的卷盘。 盒式录放机包括具有两个旋转构件的驱动器，该驱动器可以分别连接到用于驱动鼓和磁带收带卷轴的磁鼓和磁带卷取卷轴，以及用于将光束投射到光带上的光学拾取器 围绕滚筒的周边缠绕，从而实现了简化的结构，便于家庭使用。

公开(公告)号：US5478701A

公开(公告)日：1995-12-26

申请号：US242998

申请日：1994-05-16

Applicant: Seung-tae Jung

Inventor： Seung-tae Jung

IPC: G11B7/26

CPC classification number: G11B7/261 ,  Y10S430/146 ,  Y10S430/163

Abstract: A method and apparatus for fabricating a read only optical disc enables mass production of a read only optical disc at low cost in a short period of time. The method includes a source disc fabricating step and a duplicating step of duplicating information of the source disc to a target disc. The source disc has a transparent substrate and a predetermined opaque write layer coated thereon, and write holes for transmitting light on the write layer, thereby storing information according to the arrangement of the write holes. The target disc has a photochromic write layer which has different absorption coefficients before and after the duplication. Here, the method uses an optical writing apparatus for optically forming the write holes of the source disc and a duplicating apparatus for optically duplicating the information from the source disc to the target disc.

Abstract translation: 用于制造只读光盘的方法和装置能够在短时间内以低成本批量生产只读光盘。 该方法包括源盘制造步骤和将源盘的信息复制到目标盘的复制步骤。 源光盘具有涂覆在其上的透明基板和预定的不透明写入层，以及用于在写入层上传输光的写入孔，从而根据写入孔的布置来存储信息。 目标盘具有在复制之前和之后具有不同吸收系数的光致变色写层。 这里，该方法使用用于光学地形成源盘的写入孔的光学写入装置和用于将信息从源盘光学复制到目标盘的复制装置。