公开(公告)号：USRE43743E1

公开(公告)日：2012-10-16

申请号：US11106732

申请日：2005-04-15

申请人： Kun-ho Cho ,  Seung-Tae Jung ,  Jang-hoon Yoo ,  Chul-woo Lee

发明人： Kun-ho Cho ,  Seung-Tae Jung ,  Jang-hoon Yoo ,  Chul-woo Lee

IPC分类号： G03B21/00 ,  G03B21/26 ,  G03B21/14

CPC分类号： G03B21/005 ,  H04N9/3117 ,  H04N13/305 ,  H04N13/324 ,  H04N13/337 ,  H04N13/363

摘要： A projection-type image display apparatus having a structure adapted so that the efficiency of the use of light and resolving power thereof can be enhanced. The projection-type image display apparatus includes a light source; a color separation unit separating incident rays according to predetermined wavelengths, and directing the separated rays at different angles; a lens array dividing the rays separated by the color separation unit into predetermined pixels; a driving portion driving the lens array to change the proceeding paths of the color rays; a polarizing beam splitter changing a proceeding path of incident rays depending on a direction of polarization; a reflection-type display device producing a color image using the rays entering via the polarizing beam splitter, and reflecting the color image toward the polarizing beam splitter; and a projection lens unit magnifying and projecting an incident image onto a screen. In addition, the projection-type image display apparatus may comprise. Alternative designs include a transmission-type display device in place of the reflection-type display device and a deflector changing the proceeding paths of the individual color rays separated by the color separation unit instead of the driving portion.

摘要翻译： 一种投影型图像显示装置，其具有能够提高光的使用效率和分辨能力的结构。 投影型图像显示装置包括光源; 分离单元，根据预定波长分离入射光线，并以不同的角度引导分离的光线; 透镜阵列，将由分色单元分离的光线划分成预定的像素; 驱动所述透镜阵列以改变所述彩色光线的前进路径的驱动部; 偏振分束器根据偏振方向改变入射光线的行进路径; 反射型显示装置，使用通过偏振分束器进入的光线产生彩色图像，并将彩色图像反射向偏振分束器; 以及将投影图像放大并投影到屏幕上的投影透镜单元。 此外，投影型图像显示装置可以包括。 替代设计包括代替反射型显示装置的透射型显示装置和改变由分色单元分离的各个色光的行进路径而不是驱动部分的偏转器。

公开(公告)号：US07613095B2

公开(公告)日：2009-11-03

申请号：US11290457

申请日：2005-12-01

申请人： Bong-Gi Kim ,  Soo-Han Park ,  Young-Man Ahn ,  Jang-Hoon Yoo

发明人： Bong-Gi Kim ,  Soo-Han Park ,  Young-Man Ahn ,  Jang-Hoon Yoo

IPC分类号： G11B7/00

CPC分类号： G11B7/1356 ,  G11B7/123 ,  G11B7/1275 ,  G11B7/1374 ,  G11B7/13927 ,  G11B7/1395 ,  G11B2007/0006

摘要： An optical pickup apparatus according to an embodiment of the present invention, comprises an optical unit for projecting a plurality of wavelengths of light, the light including a celadon light, toward a recording medium and receiving the light reflected from the recording medium to thereby detect an information signal and an error signal, and a compatible objective lens for focusing a light projected from the optical unit to thereby form an optical spot on a recording surface of the recording medium and applying at least three light having different wavelength ranges to be compatibly used for both the high-density and the low-density recording mediums. Accordingly, the optical pickup apparatus is capable of compatibly employing a high-density recording medium, which uses a celadon light and is slimmer than a digital versatile disc (DVD), and at least one low-density recording medium.

摘要翻译： 根据本发明实施例的光学拾取装置包括一个光学单元，用于将多个波长的光（包括青瓷光的光）投射到记录介质上，并接收从记录介质反射的光，从而检测一个 信息信号和误差信号，以及用于聚焦从光学单元投影的光的兼容物镜，从而在记录介质的记录表面上形成光点，并且将至少三个具有不同波长范围的光并入，用于 高密度和低密度记录介质。 因此，光拾取装置能够兼容使用青瓷光的高密度记录介质，并且比数字通用盘（DVD）更薄，以及至少一种低密度记录介质。

公开(公告)号：US20080049581A1

公开(公告)日：2008-02-28

申请号：US11733345

申请日：2007-04-10

申请人： Myoung Seok Kim ,  Jang Hoon Yoo

发明人： Myoung Seok Kim ,  Jang Hoon Yoo

IPC分类号： G11B7/00

CPC分类号： G11B7/0903 ,  G11B7/1353 ,  G11B7/1374 ,  G11B2007/0006

摘要： An optical pick-up including a first objective lens having a numerical aperture (NA) suitable for a BD, a second objective lens having an NA suitable for an HD-DVD, a light source to emit light beams suitable for the BD and the HD-DVD, a first beam splitter to transmit and reflect the emitted beams emitted to be selectively guided to one of the first and second objective lenses, a grated diffraction element to split the emitted beams into a zeroth order main beam and ±1st order sub-beams that can be projected on a single track of the BD and the HD-DVD in series, a first optical detector to receive a beam reflected by and returned from the BD, and a second optical detector to receive a beam reflected by and returned from the HD-DVD, wherein the first and second optical detectors are positioned at similar distances from the first beam splitter.

摘要翻译： 一种光学拾取器，包括具有适用于BD的数值孔径（NA）的第一物镜，具有适合于HD-DVD的NA的第二物镜，用于发射适用于BD的光束的光源和HD -DVD，第一分束器，用于透射和反射被发射的发射光束，以被选择性地引导到第一和第二物镜之一;衍射元件，用于将发射的光束分裂成零级主光束; 可以投射在BD和HD-DVD的单个轨道上的第一<！ - SIPO - >次级子束，用于接收由BD反射并从BD返回的光束的第一光学检测器，以及第二光学检测器 接收由HD-DVD反射和返回的光束，其中第一和第二光学检测器位于与第一分束器相似的距离处。

公开(公告)号：US20080019232A1

公开(公告)日：2008-01-24

申请号：US11767163

申请日：2007-06-22

申请人： Jang Hoon YOO ,  Myoung Seok KIM ,  Se June PARK

发明人： Jang Hoon YOO ,  Myoung Seok KIM ,  Se June PARK

IPC分类号： G11B7/00

CPC分类号： G11B7/1374 ,  G11B7/1275 ,  G11B7/1353 ,  G11B2007/0006

摘要： An object lens and an optical pick-up device having the same capable of recording and/or reproducing a plurality of types of optical discs, the optical pick-up device including: a light emitting part that emits lights having different wavelengths corresponding to the plurality of types of optical discs, and a light collecting part that focuses a light having a wavelength corresponding to a type of a loaded optical disc and emitted from the light emitting part to form spots on the loaded optical disc. Accordingly, various types of optical discs using different wavelengths can be compatibly driven in an optical recording/reproducing apparatus capable of recording and/or reproducing high/low density optical discs.

摘要翻译： 具有能够记录和/或再现多种类型的光盘的物镜和光学拾取装置，该光学拾取装置包括：发光部，其发射与多个光盘对应的不同波长的光 的光盘类型，以及聚光部件，其聚焦具有对应于装载的光盘类型的波长并从发光部分发射的光，以在装载的光盘上形成光斑。 因此，可以在能够记录和/或再现高/低密度光盘的光记录/再现装置中兼容地驱动使用不同波长的各种类型的光盘。

公开(公告)号：US20060274631A1

公开(公告)日：2006-12-07

申请号：US11430847

申请日：2006-05-10

申请人： Jang-hoon Yoo ,  Hag-hyun Jang ,  Soo-han Park ,  Soo-jin Jeong ,  Tae-youn Heor ,  Bong-gi Kim

发明人： Jang-hoon Yoo ,  Hag-hyun Jang ,  Soo-han Park ,  Soo-jin Jeong ,  Tae-youn Heor ,  Bong-gi Kim

IPC分类号： G11B7/135

CPC分类号： G11B7/1275 ,  G11B7/1353 ,  G11B2007/0006

摘要： An optical recording/reproducing apparatus featuring stable information signal detection ability and reduced number of components. The optical recording/reproducing apparatus includes: a plurality of light sources emitting lights with different wavelengths for use in recording/reproducing information onto/from various types of optical recording media of different recording densities, in which at least two lights emitted from the light sources have polarization components orthogonal to each other; an objective lens for focusing a light from each of the light sources to a corresponding optical recording medium; a collimating lens disposed between the light sources and the objective lens for collimating lights from the light sources; a hologram element installed between the collimating lens and the objective lens for refracting a light emitted from one of the light sources, in which the light to be refracted is selected by wavelength and polarization components; and a photodetector receiving a light that is reflected from the corresponding optical recording medium after being focused by the objective lens.

摘要翻译： 一种具有稳定的信息信号检测能力和数量减少的光记录/再现装置。 光记录/重放装置包括：多个光源，发射不同波长的光，用于在各种不同记录密度的光学记录介质上记录/再现信息，其中从光源发出的至少两个光 具有彼此正交的极化分量; 用于将来自每个光源的光聚焦到相应的光学记录介质的物镜; 设置在光源和物镜之间的准直透镜，用于准直来自光源的光; 安置在准直透镜和物镜之间的全息元件，用于折射从其中一个光源发射的光，其中通过波长和偏振分量选择待折射的光; 以及光接收器，其在被物镜聚焦之后接收从对应的光记录介质反射的光。

公开(公告)号：US20060176789A1

公开(公告)日：2006-08-10

申请号：US11331317

申请日：2006-01-13

申请人： Jong-Uk Kim ,  Jang-Hoon Yoo ,  Hag-Hyeon Jang ,  Young-Sun Jeon ,  Hyung-Jin Kim

发明人： Jong-Uk Kim ,  Jang-Hoon Yoo ,  Hag-Hyeon Jang ,  Young-Sun Jeon ,  Hyung-Jin Kim

IPC分类号： G11B5/09

CPC分类号： G11B20/10 ,  G11B2007/0006 ,  G11B2020/10879

摘要： A data line switching circuit of an optical pickup device is disclosed. In order to drive multiple formats of optical disks, the data line switching circuit applies data signals of a corresponding format to the optical pickup device through a common connector by connecting data lines of the corresponding format to the common connector according to control signals from a control unit, thereby minimizing the number of terminals of the connector to obtain a miniaturized optical pickup device.

摘要翻译： 公开了一种光拾取装置的数据线切换电路。 为了驱动多种格式的光盘，数据线切换电路根据来自控制器的控制信号，将相应格式的数据线连接到公共连接器，通过公共连接器将相应格式的数据信号应用于光学拾取装置 从而最小化连接器的端子数以获得小型化的光学拾取装置。

公开(公告)号：US20060164708A1

公开(公告)日：2006-07-27

申请号：US11332243

申请日：2006-01-17

申请人： Soo-han Park ,  Jang-hoon Yoo ,  Hang-hyeon Jang ,  Yong-han Yoon ,  Soo-jin Jung

发明人： Soo-han Park ,  Jang-hoon Yoo ,  Hang-hyeon Jang ,  Yong-han Yoon ,  Soo-jin Jung

IPC分类号： G02B26/08

CPC分类号： G11B7/1275 ,  G11B7/1353 ,  G11B7/1376 ,  G11B7/1378 ,  G11B7/13922 ,  G11B7/13925 ,  G11B2007/0006 ,  G11B2007/0013 ,  G11B2007/13727

摘要： An optical pickup device according to an embodiment of the present invention comprises a light source for projecting a beam of light to record and reproduce information with respect to an optical recording medium. A collimating lens is disposed on a path of the light to converge and convert the light into a parallel beam. An object lens condenses the parallel beam from the collimating lens and projects the parallel beam onto the optical recording medium. An optical element is disposed between the collimating lens and the object lens. A first actuator moves the collimating lens along the optical axis to thereby control a distance between the collimating lens and the optical element. A first controller drives the first actuator to find a position for the collimating lens, for reducing aberration generated in the light being projected to the optical recording medium. Accordingly, the aberration can be effectively prevented, thereby improving recording and reproducing performance of the optical pickup device.

摘要翻译： 根据本发明的实施例的光学拾取装置包括用于投射光束以记录和再现关于光学记录介质的信息的光源。 准直透镜设置在光的路径上以会聚并将光转换成平行光束。 物镜将来自准直透镜的平行光束会聚并将平行光束投影到光记录介质上。 光学元件设置在准直透镜和物镜之间。 第一致动器沿着光轴移动准直透镜，从而控制准直透镜和光学元件之间的距离。 第一控制器驱动第一致动器以找到用于准直透镜的位置，用于减少投射到光记录介质的光中产生的像差。 因此，可以有效地防止像差，从而提高光拾取装置的记录和再现性能。

公开(公告)号：US20060163459A1

公开(公告)日：2006-07-27

申请号：US11329119

申请日：2006-01-11

申请人： Soo-Han Park ,  Jang-Hoon Yoo ,  Hag-Hyeon Jang ,  Ho-Sik You

发明人： Soo-Han Park ,  Jang-Hoon Yoo ,  Hag-Hyeon Jang ,  Ho-Sik You

IPC分类号： G01D5/34

CPC分类号： G11B7/1376 ,  G11B7/1263 ,  G11B7/1275 ,  G11B7/1356 ,  G11B7/1374 ,  G11B7/13925 ,  G11B2007/0006

摘要： An optical pickup apparatus includes a first objective lens having a low numerical aperture (NA) suitable for a low density recording medium, a second objective lens having a high NA suitable for a high density recording medium, a first light source that emits short wavelength light which is focused onto an optical recording medium by the first and second objective lenses, a first photodetector that receives a returning reflected light from the optical recording medium, and a first optical path converter for selectively guiding part of the light emitted from the first light source towards the first or the second objective lens, and guiding the reflected light towards the first photodetector.

摘要翻译： 一种光学拾取装置包括具有适用于低密度记录介质的低数值孔径（NA）的第一物镜，具有适用于高密度记录介质的高NA的第二物镜，发射短波长光的第一光源 其通过第一和第二物镜聚焦到光学记录介质上，第一光电检测器，其接收来自光学记录介质的返回反射光;以及第一光路转换器，用于选择性地引导从第一光源发射的光的一部分 朝向第一或第二物镜，并且将反射光引向第一光电检测器。

公开(公告)号：US07072254B2

公开(公告)日：2006-07-04

申请号：US10217330

申请日：2002-08-13

申请人： Dae-sik Kim ,  Soon-kyo Hong ,  Chul-woo Lee ,  Ho-cheol Lee ,  Kun-ho Cho ,  Jang-hoon Yoo

发明人： Dae-sik Kim ,  Soon-kyo Hong ,  Chul-woo Lee ,  Ho-cheol Lee ,  Kun-ho Cho ,  Jang-hoon Yoo

IPC分类号： G11B5/09 ,  G11B7/24

CPC分类号： G11B7/13922 ,  G11B7/123 ,  G11B7/1356 ,  G11B7/1374 ,  G11B7/139 ,  G11B7/24056

摘要： An optical pickup device includes a light unit for irradiating a light beam having a wavelength longer than 650 nm onto a recording medium and receiving and detecting a light beam reflected by the recording medium, and an objective tens formed of a single lens having an NA of 0.7 or more to form a light spot on the recording medium by condensing an incident light beam emitted from the light unit. A recording medium has a recording density of a DVD family or more and is formed of a material suitable for a long wavelength of 700 nm or more so that a reproduction signal by a reflectance of a recording surface is optimized. Thus, a compact high density optical recording/reproducing apparatus which is inexpensive and has high performance can be realized.

摘要翻译： 一种光学拾取装置，包括用于将长度大于650nm的波长的光束照射到记录介质上并接收和检测由记录介质反射的光束的光单元，以及由具有NA 0.7以上，通过会聚来自光单元的入射光束，在记录介质上形成光斑。 记录介质具有DVD系列以上的记录密度，并且由适合于700nm以上的长波长的材料形成，使得通过记录面的反射率的再现信号被优化。 因此，可以实现廉价且具有高性能的紧凑型高密度光学记录/再现装置。

公开(公告)号：US07016291B2

公开(公告)日：2006-03-21

申请号：US10869096

申请日：2004-06-17

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： G11B7/00

CPC分类号： G11B7/1353 ,  G02B5/1876 ,  G11B7/127 ,  G11B7/1367 ,  G11B7/1374 ,  G11B7/1378 ,  G11B7/139 ,  G11B7/13922 ,  G11B2007/0006 ,  G11B2007/13727

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.