公开(公告)号：US06728177B2

公开(公告)日：2004-04-27

申请号：US09946814

申请日：2001-09-06

申请人： Pyong-yong Seong ,  Kyu-hwan Jung

发明人： Pyong-yong Seong ,  Kyu-hwan Jung

IPC分类号： G11B700

CPC分类号： G11B7/0045 ,  G11B7/0037

摘要： An optical disc recording method to record data on a disc using multiple speeds by dividing a disc region into an inner circumference region and an outer circumference region depending on radii of the disc, setting a multiple recording speed for each region; setting optical recording power in a lead-in region of the inner circumference region and a lead-out region of the outer circumference region, by performing optimum power controls therein; determining in which one of the divided regions data is to be recorded using an address detected from the disc, rotating the disc at the multiple recording speed set for the one region in which the data is to be recorded, and recording the data in the one region using the set optical recording power for the one region.

摘要翻译： 一种光盘记录方法，用于根据盘的半径将光盘区域划分成内周区域和外周区域，通过多个速度记录数据到盘上，为每个区域设定多个记录速度; 通过在其中执行最佳功率控制，在内周区域的引入区域和外周区域的引出区域中设置光学记录功率; 使用从盘检测到的地址来确定分割区域数据中的哪一个数据，以对要记录数据的一个区域设置的多个记录速度旋转盘，并将数据记录在一个中 区域，使用该区域的设定光学记录功率。

公开(公告)号：US06636464B1

公开(公告)日：2003-10-21

申请号：US09588224

申请日：2000-06-06

申请人： Yong-jae Lee ,  Pyong-yong Seong ,  Jang-hoon Yoo ,  Byung-ryul Ryoo ,  Yong-ki Son

发明人： Yong-jae Lee ,  Pyong-yong Seong ,  Jang-hoon Yoo ,  Byung-ryul Ryoo ,  Yong-ki Son

IPC分类号： G11B700

CPC分类号： G11B7/1353 ,  G11B7/0901 ,  G11B7/0912 ,  G11B7/094 ,  G11B7/131

摘要： An optical pickup device employing a signal detection unit including a hologram element having a plurality of pattern regions for diffracting and/or focusing light reflected and incident from a recording medium, a photodetector having a plurality of light receiving regions for receiving and photoelectrically converting the light diffracted by the hologram element and a signal operation unit for generating a focus error signal and/or a track error signal from a signal detected from the photodetector. The optical pickup device can implement a stable servo operation even at deviations of the photodetector, a change in the wavelength of light emitted from the light source, and/or shift of focusing means such as an objective lens, and can record and/or reproduce high-density information on/from the recording medium.

摘要翻译： 一种采用信号检测单元的光学拾取装置，包括具有多个图案区域的全息元件，用于衍射和/或聚焦从记录介质反射和入射的光;具有多个光接收区域的光电检测器，用于接收和光电转换光 由全息元件衍射，以及用于从从光电检测器检测的信号产生聚焦误差信号和/或轨道误差信号的信号操作单元。 光拾取装置即使在光电检测器的偏差，光源发射的光的波长变化和/或诸如物镜的聚焦装置的移动中也能够实现稳定的伺服操作，并且可以记录和/或再现 来自记录介质的高密度信息。

公开(公告)号：US06587481B1

公开(公告)日：2003-07-01

申请号：US09552621

申请日：2000-04-19

申请人： Pyong-yong Seong ,  Yong-jae Lee ,  Byung-ryul Ryoo ,  Yong-ki Son

发明人： Pyong-yong Seong ,  Yong-jae Lee ,  Byung-ryul Ryoo ,  Yong-ki Son

IPC分类号： H01S310

CPC分类号： G11B7/1353 ,  G11B7/0903 ,  G11B7/0909 ,  G11B7/123 ,  G11B7/127 ,  G11B7/131 ,  G11B7/1356 ,  G11B7/1362 ,  G11B7/22 ,  G11B2007/0006

摘要： A light emitting module packaging two light sources emitting two light beams of different wavelengths, and a compatible optical pickup device adopting the module are provided. The light emitting module includes a base, first and second light sources installed on the base, for emitting laser beams in different wavelength regions, a beam splitter and a monitoring photodetector for monitoring the optical outputs of the first and second light sources by receiving the beams emitted from the first and second light sources and split from the beam splitter in one direction. Also, another light emitting module includes a substrate, first and second light sources installed on the substrate for emitting laser beams of first and second wavelengths from both lateral sides thereof, a reflection member for reflecting the laser beam emitted from one lateral side of each of the first and second light sources to proceed in one direction, and first and second monitoring photodetectors for monitoring optical outputs of the first and second light sources. The compatible optical pickup device includes the light emitting module having the above structure, an objective lens for focusing first and second laser beams on an optical recording medium, an optical path converting device, a grating arranged on an optical path between the light emitting module and the optical path converting device for diffracting and transmitting an incident light, a photodetector.

摘要翻译： 本发明提供一种封装发射两个不同波长光束的两个光源的发光模块，以及采用该模块的兼容的光拾取装置。 发光模块包括安装在基座上的用于发射不同波长区域的激光束的基座，第一和第二光源，分束器和监视光电检测器，用于通过接收光束来监测第一和第二光源的光输出 从第一和第二光源发射并沿一个方向从分束器分离。 此外，另一发光模块包括基板，安装在基板上的第一和第二光源，用于从其两个侧面发射第一和第二波长的激光束;反射构件，用于反射从每个的一个侧面发射的激光束 第一和第二光源沿一个方向进行，以及第一和第二监视光电检测器，用于监视第一和第二光源的光输出。 兼容的光学拾取装置包括具有上述结构的发光模块，用于将第一和第二激光束聚焦在光学记录介质上的物镜，光路转换装置，布置在发光模块与发光模块之间的光路上的光栅 用于衍射和透射入射光的光路转换装置，光电检测器。

公开(公告)号：US06567366B2

公开(公告)日：2003-05-20

申请号：US09144639

申请日：1998-08-31

申请人： Tae-Kyung Kim ,  Pyong-Yong Seong ,  Chul-Woo Lee

发明人： Tae-Kyung Kim ,  Pyong-Yong Seong ,  Chul-Woo Lee

IPC分类号： G11B700

CPC分类号： G11B7/1356

摘要： An optical pickup records information on a recordable and reproducible disk and reads information therefrom. The optical pickup includes a laser light source for emitting first laser light in case of a reproduction mode for reproducing information from the disk and emitting second laser light in case of a recording mode for recording information on the disk. A collimating lens collimates the laser light emitted from the laser light source. A chromatic aberration corrector includes prisms of respectively different material properties, for beam-shaping and dispersing the laser light collimated by the collimating lens so that chromatic aberration of an optical spot formed on the disk is corrected in which the chromatic aberration is generated by a difference between the wavelengths of the first and second laser lights. The beam-shaped and dispersed first and second laser lights are focused on the disk by an objective lens.

摘要翻译： 光学拾取器记录关于可记录和可重现的盘的信息并从中读取信息。 光拾取器包括用于在用于从盘再现信息的再现模式中发射第一激光的激光光源，并且在用于在盘上记录信息的记录模式的情况下发射第二激光。 准直透镜准直激光源发出的激光。 色差校正器包括分别具有不同材料特性的棱镜，用于对由准直透镜准直的激光进行光束整形和分散，从而校正在光盘上形成的光点的色差，其中通过差产生色差 在第一和第二激光的波长之间。 束状分散的第一和第二激光通过物镜聚焦在盘上。

公开(公告)号：US06449237B1

公开(公告)日：2002-09-10

申请号：US09425673

申请日：1999-10-22

申请人： Jang-Hoon Yoo ,  Chul-Woo Lee ,  Kun-Ho Cho ,  Pyong-Yong Seong

发明人： Jang-Hoon Yoo ,  Chul-Woo Lee ,  Kun-Ho Cho ,  Pyong-Yong Seong

IPC分类号： G11B700

CPC分类号： G11B7/1353 ,  G02B5/1876 ,  G11B7/1275 ,  G11B7/1378 ,  G11B7/13922 ,  G11B2007/0006

摘要： An optical recording and pickup head having a flat plate lens of a staircase type diffraction grating structure is compatible with a DVD and a CD-RW. The optical recording and pickup head includes a first optical source for emitting first light having a relatively short wavelength, a second optical source for emitting second light having a relatively long wavelength, a photo detector, an objective lens for focusing the light emitted from the first and second optical sources on the information recording surfaces of the optical discs, respectively, an optical path altering unit for transferring the light emitted from the first and second optical sources to the objective lens and transferring the first and second light reflected from the information recording surfaces of the plurality of discs to the photo detector, respectively, and a flat plate lens for substantially totally transmitting the first light proceeding from the optical path altering unit to the objective lens and diffracting the second light proceeding from the optical path altering unit to the optical axis of the objective lens.

摘要翻译： 具有楼梯型衍射光栅结构的平板透镜的光学记录和拾取头与DVD和CD-RW兼容。 光学记录和拾取头包括用于发射具有相对较短波长的第一光的第一光源，用于发射具有较长波长的第二光的第二光源，光检测器，用于将从第一光发射的光聚焦的物镜 和第二光源分别设置在光盘的信息记录表面上，光路改变单元，用于将从第一和第二光源发射的光转移到物镜，并传送从信息记录表面反射的第一和第二光 以及平板透镜，用于将从光路改变单元前进的第一光基本上全部透射到物镜，并将从光路改变单元行进的第二光衍射到光学检测器 物镜的轴线。

公开(公告)号：US06295255B1

公开(公告)日：2001-09-25

申请号：US09315989

申请日：1999-05-21

申请人： Young-sun Seo ,  Han-kook Choi ,  Pyong-yong Seong ,  In-sik Park ,  Hee-deuk Park ,  Young-min Cheong ,  Dong-ho Shin

发明人： Young-sun Seo ,  Han-kook Choi ,  Pyong-yong Seong ,  In-sik Park ,  Hee-deuk Park ,  Young-min Cheong ,  Dong-ho Shin

IPC分类号： G11B700

CPC分类号： G11B7/1362 ,  G11B7/0932 ,  G11B7/0935 ,  G11B7/0956

摘要： An optical pickup includes a rotary block rotatably installed on a fixed base; a holder integrally coupled to the rotary block; a bobbin supported by a wires of the holder to be movable; a base plate fixed to the fixed base and placed between the rotary block and the bobbin; an objective lens mounted in the bobbin, for focusing an incident light to form a spot of light on a recording medium; a focusing coil and tracking coils installed in the bobbin, serving as a current flow path for focusing and tracking operations; first magnets and first inner and outer yokes installed in the base plate, facing the focusing coil and the tracking coils, for producing magnetic fields perpendicular to the current flowing through the focusing coil and the tracking coils to produce an electromagnetic force for driving the bobbin; a fixed optical system for irradiating light toward the recording medium and receiving the light reflected by the recording medium and then passed through the objective lens; a reflecting mirror for changing the traveling path of the incident light, the reflecting mirror installed in the rotary block to be arranged between the objective lens and the fixed optical system; tilt coils serving as a current flow path, the tilt coils installed at both sides of the rotary block; and second magnets and second inner and outer yokes installed facing the tilt coils, for producing magnetic fields perpendicular to the current flowing through the tilt coils to produce an electromagnetic force for rotating the rotary block. Therefore, the tilt of the optical axis of the light incident onto and reflected by an optical disk through the reflecting mirror and the objective lens can be adjusted according to the tilt of the recording medium, such that the light is perpendicularly incident onto and reflected by the recording medium all the time.

摘要翻译： 光学拾取器包括可旋转地安装在固定基座上的旋转块; 一体地联接到所述旋转块的保持器; 由保持器的电线支撑的可绕动的线轴; 固定在所述固定基座上并设置在所述旋转块和所述筒管之间的基板; 安装在筒管中的物镜，用于聚焦入射光以在记录介质上形成光斑; 安装在筒管中的聚焦线圈和跟踪线圈，用作用于聚焦和跟踪操作的电流流动路径; 第一磁体和安装在基板中的面对聚焦线圈和跟踪线圈的第一内外轭，用于产生垂直于流过聚焦线圈和跟踪线圈的电流的磁场，以产生用于驱动线轴的电磁力; 用于向记录介质照射光并接收由记录介质反射的光然后通过物镜的固定光学系统; 用于改变入射光的行进路径的反射镜，安装在旋转块中以设置在物镜和固定光学系统之间的反射镜; 倾斜线圈用作电流流路，倾斜线圈安装在旋转块的两侧; 并且第二磁体和第二内外轭安装成面对倾斜线圈，用于产生垂直于流过倾斜线圈的电流的磁场，以产生用于旋转旋转块的电磁力。 因此，可以根据记录介质的倾斜度，通过反射镜和物镜入射到光盘并由其反射的光的光轴的倾斜，使得光垂直入射到其上并由 记录介质。

公开(公告)号：US06272096B1

公开(公告)日：2001-08-07

申请号：US09726018

申请日：2000-11-30

申请人： Jang Hoon Yoo ,  Chul Woo Lee ,  Chong Sam Chung ,  Pyong Yong Seong ,  Kun Ho Cho ,  Hyun Seob Choi ,  Yong Hoon Lee ,  Tae Kyung Kim ,  No Kyong Park

发明人： Jang Hoon Yoo ,  Chul Woo Lee ,  Chong Sam Chung ,  Pyong Yong Seong ,  Kun Ho Cho ,  Hyun Seob Choi ,  Yong Hoon Lee ,  Tae Kyung Kim ,  No Kyong Park

IPC分类号： G11B700

摘要： An optical pickup apparatus having compatibility with a recodable compact disk (CD-R) and a digital video disk (DVD), which uses a wavelength of one of a first light beam and a second light beam according to the recording medium to be used. In the optical pickup apparatus, laser light sources emit a first light beam having a relatively shorter wavelength for the DVD and a second light beam having a longer wavelength for the CD-R, respectively. An objective lens has a predetermined focal length in accordance with the position of an information recording surface in the DVD. An optical path control unit controls the path of light beams so that the light beam emitted from one of the laser light sources is directed to the objective lens and the light output from the objective lens is directed to the optical detection unit. A phase shift unit which is located between the optical path control unit and the objective lens, shifts the phase of the second light proceeding from the optical path control unit to the objective lens, to thereby reduce the size of a beam spot which is formed on a position of the information recording surface in the CD-R.

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：US06222812B1

公开(公告)日：2001-04-24

申请号：US08921386

申请日：1997-08-29

申请人： Jang Hoon Yoo ,  Chul Woo Lee ,  Chong Sam Chung ,  Pyong Yong Seong ,  Kun Ho Cho ,  Hyun Seob Choi ,  Yong Hoon Lee ,  Tae Kyung Kim ,  No Kyong Park

发明人： Jang Hoon Yoo ,  Chul Woo Lee ,  Chong Sam Chung ,  Pyong Yong Seong ,  Kun Ho Cho ,  Hyun Seob Choi ,  Yong Hoon Lee ,  Tae Kyung Kim ,  No Kyong Park

IPC分类号： G11B712

CPC分类号： G11B7/1374 ,  G02B19/0028 ,  G02B19/0057 ,  G02B27/0944 ,  G11B7/127 ,  G11B7/1275 ,  G11B7/1353 ,  G11B7/1356 ,  G11B7/1367 ,  G11B7/139 ,  G11B7/13922 ,  G11B2007/0006

摘要： An optical pickup apparatus having compatibility with a recodable compact disk (CD-R) and a digital video disk (DVD), which uses a wavelength of one of a first light beam and a second light beam according to the recording medium to be used. In the optical pickup apparatus, laser light sources emit a first light beam having a relatively shorter wavelength for the DVD and a second light beam having a longer wavelength for the CD-R, respectively. An objective lens has a predetermined focal length in accordance with the position of an information recording surface in the DVD. An optical path control unit controls the path of light beams so that the light beam emitted from one of the laser light sources is directed to the objective lens and the light output from the objective lens is directed to the optical detection unit. A phase shift unit which is located between the optical path control unit and the objective lens, shifts the phase of the second light proceeding from the optical path control unit to the objective lens, to thereby reduce the size of a beam spot which is formed on a position of the information recording surface in the CD-R.

摘要翻译： 具有与使用根据要使用的记录介质的第一光束和第二光束中的一个的波长的可重写光盘（CD-R）和数字视频盘（DVD）兼容的光学拾取装置。 在光拾取装置中，激光光源分别发射具有相对较短波长的第一光束和用于CD-R的具有较长波长的第二光束。 根据DVD中的信息记录表面的位置，物镜具有预定焦距。 光路控制单元控制光束的路径，使得从一个激光源发射的光束被引导到物镜，并且从物镜输出的光被引导到光学检测单元。 位于光路控制单元和物镜之间的相移单元将从光路控制单元向物镜移动的第二光的相位偏移，从而减小形成在光路控制单元 信息记录表面在CD-R中的位置。