公开(公告)号：KR100297772B1

公开(公告)日：2001-08-07

申请号：KR1019980018385

申请日：1998-05-21

Applicant: 삼성전자주식회사

Inventor： 유장훈 ,  주성신 ,  이용재 ,  양창진

IPC: G11B7/005

Abstract: PURPOSE: A method and an apparatus for playing a disk are provided to prevent the degradation of regenerative signals and to accurately regenerate information signals by selectively outputting the regenerative signals. CONSTITUTION: A disk player has an optical pickup including a photo detector. The photo detector includes a first and a second light receiving regions placed in radial of a disk. The disk player includes a first deciding unit(30) for selectively outputting a signal by comparing a first detecting signal(RF) and a second detecting signal(FR) detected by the first and second light receiving units, an adding unit(40) for adding the signals, and a second deciding unit(50) for outputting a high quality signal by comparing the output signal of the first deciding unit to the output signal of the adding unit.

公开(公告)号：KR1020010048112A

公开(公告)日：2001-06-15

申请号：KR1019990052657

申请日：1999-11-25

Applicant: 삼성전자주식회사

Inventor： 조건호 ,  유장훈 ,  정승태 ,  이철우

IPC: G11B7/122 ,  G11B7/1395

Abstract: PURPOSE: An optical head for recording reproduction is provided to make composition simply and have a good reproduction signal by arranging an optical path conversion device composed of a complex beam divider between an objective lens and an optical cable. CONSTITUTION: An objective lens(140) is installed at a slider which is moved on an optical disc(100) in state of being floated by air dynamic pressure, and focuses a projected light, and forms an optical spot on the optical disc(100). A light source(110), arranged in a long distance relatively from the objective lens(140), generates and emits a light. An optical cable for transmitting light(120) transmits lights emitted from the light source to the objective lens(140). An optical cable for receiving light(151,155) transmits lights which is reflected at the optical disc(100) and pass it through the objective lens(140) in a long distance relatively. An optical detector(161,165) is arranged to be facing with exits of the optical cable for receiving light and is reflected at the optical disc(100), and receives light transmitted by way of the objective lens(140). An optical path conversion device is arranged between entrance of the optical cable and the objective lens(140), and converts a process path of the incidence light.

Abstract translation: 目的：提供一种用于记录再现的光学头，通过在物镜和光缆之间布置由复光束分隔器构成的光路转换装置，简单地构成并具有良好的再现信号。 构成：物镜（140）安装在滑块上，该滑块在被空气动压悬浮的状态下在光盘（100）上移动，并且聚焦投影光，并在光盘（100）上形成光点 ）。 相对于物镜140设置的光源（110）产生并发出光。 用于透射光的光缆（120）将从光源发射的光透射到物镜（140）。 用于接收光的光缆（151,155）透射在光盘（100）处被反射并使其相对长距离地通过物镜（140）的光。 光检测器（161,165）被布置成面向光缆的出口，用于接收光，并在光盘（100）处被反射，并且接收通过物镜（140）传输的光。 光路转换装置设置在光缆的入口和物镜（140）之间，并且转换入射光的处理路径。

公开(公告)号：KR1020010046628A

公开(公告)日：2001-06-15

申请号：KR1019990050464

申请日：1999-11-13

Applicant: 삼성전자주식회사

Inventor： 유장훈 ,  문정호 ,  정승태 ,  이철우

IPC: G11B7/122 ,  G11B7/14

Abstract: PURPOSE: An optical head for recording reproduction and optical recording playback adopting this is provided to realize high speed record and/or reproduction speed by making a recording and/or reproduction simultaneously at least more than one of track. CONSTITUTION: A light source(110) emits at least more than one of light simultaneously. An optical path conversion device is arranged at an optical path between the light source(110) and an optical disc(60), and converts a proceeding path of the incidence angle. An objective lens(130) is installed at a slider(75) which is moving at the optical disc(60) with being floated by air dynamic pressure to be occurred by rotation of the optical disc(60), and is emitted from the light source(110), and focuses lights which is made an incidence by way of the optical path conversion device, and then forms this at the optical disc(60). An optical detector(150) is installed at one side of the optical path conversion device, and is reflected at the optical disc(60), and receives lights which is made an incidence by way of the optical path conversion device and the objective lens(130).

Abstract translation: 目的：提供用于记录再现的光学头和采用该光学记录的光学记录，以通过至少多于一个轨道同时进行记录和/或再现来实现高速记录和/或再现速度。 构成：光源（110）同时发射至少一种以上的光。 光路转换装置设置在光源（110）和光盘（60）之间的光路上，并且转换入射角的前进路径。 物镜（130）安装在滑动器（75）上，该滑块（75）在光盘（60）上移动，由于由光盘（60）旋转而产生的空气动压浮动，并从光 源（110），并且通过光路转换装置对入射的光聚焦，然后在光盘（60）上形成。 光检测器（150）安装在光路转换装置的一侧，并在光盘（60）反射，并且通过光路转换装置和物镜接收入射的光 130）。

公开(公告)号：KR1020010009191A

公开(公告)日：2001-02-05

申请号：KR1019990027454

申请日：1999-07-08

Applicant: 삼성전자주식회사

Inventor： 유장훈 ,  조건호 ,  정승태 ,  이철우 ,  서중언 ,  신동호

IPC: G11B7/09

CPC classification number: B82Y10/00 ,  G11B7/08564 ,  G11B7/1356 ,  G11B7/139 ,  G11B11/10543 ,  G11B11/10576 ,  G11B2007/13725

Abstract: PURPOSE: An optical pickup device for stable tracking is provided to operate tracking while not translating an object lens not to generate offset in a track error signal. CONSTITUTION: Light from a light source(30) is inputted to a partial polarized beam splitter(40). 70% of P-polarized beam transmits the splitter while reflecting S-polarized beam. The P-polarized beam is reflected on a tracking mirror(50) and inputted to a relay lens(55). The beam is converted into a parallel beam and inputted to a first transmit unit(61) of an object lens(60). In the case of the beam deviated from an optical axis(c), the beam is inputted to the lens by moving the tracking mirror. The beam passes through the first transmit unit(61) and condensed on a recording medium(20) by passing through the second transmit unit(63). The beam passes the path in reverse direction. The beam reflected on the splitter is condensed and inputted to an optical detect unit.

Abstract translation: 目的：提供一种用于稳定跟踪的光学拾取装置，用于操作跟踪，而不转换物镜不在轨道误差信号中产生偏移。 构成：来自光源（30）的光被输入到偏振光束分离器（40）。 P偏振光束的70％透射分光镜同时反射S-偏光束。 P偏振光束在跟踪反射镜（50）上反射并输入到中继透镜（55）。 光束被转换为平行光束并输入到物镜（60）的第一发射单元（61）。 在光束偏离光轴（c）的情况下，通过移动跟踪反射镜将光束输入到透镜。 光束通过第一发射单元（61）并通过穿过第二发射单元（63）而聚集在记录介质（20）上。 光束通过反向路径。 在分路器上反射的光束被冷凝并输入到光学检测单元。

公开(公告)号：KR100274624B1

公开(公告)日：2000-12-15

申请号：KR1019970073052

申请日：1997-12-24

Applicant: 삼성전자주식회사

Inventor： 조건호 ,  유장훈

IPC: H04N5/74

Abstract: PURPOSE: A 3-D cubic image generating device is provided to generate a 3-D image having good cubic feeling and scene feeling by effectively mitigating a limitation that a viewing location of a viewer is fixed. CONSTITUTION: A 3-D cubic image generating device includes an adaptive liquid crystal display device(300) for sequentially displaying each of 2-D slice images through a liquid crystal display layer stacked in the order of depth information to produce 3-D cubic images through each of the 2-D slice images sequentially obtained depending on the depth information on the same subject. A back light illuminator(310) provides a light source to the adaptive liquid crystal display device(300). A slice image input(320) provides corresponding 2-D slice image signals of the adaptive liquid crystal display device(300). A liquid crystal driving controller (330) controls a liquid crystal voltage to sequentially drive each of the liquid crystal display layers corresponding to respective 2-D slice image signals in synchronism with the slice image input(320). A magnification lens(330) is intervened between the adaptive liquid crystal display device(300) and a viewer(400) and optically magnifies the 3-D cubic image viewed by the viewer(400).

Abstract translation: 目的：提供3-D立体图像生成装置，通过有效地缓解观看者的观看位置固定的限制，生成具有良好立体感和场景感觉的3-D图像。 构成：3-D立体图像产生装置包括：自适应液晶显示装置（300），用于通过以深度信息的顺序层叠的液晶显示层顺序地显示2-D切片图像，以产生3-D立体图像 通过根据相同对象的深度信息顺序获得的每个2-D切片图像。 背光照明器（310）向自适应液晶显示装置（300）提供光源。 切片图像输入（320）提供自适应液晶显示装置（300）的对应的2-D切片图像信号。 液晶驱动控制器（330）控制液晶电压，以与切片图像输入（320）同步地依次驱动与各个2-D切片图像信号相对应的每个液晶显示层。 在自适应液晶显示装置（300）和观看者（400）之间插入放大透镜（330），并且对由观看者（400）观看的3-D立体图像进行光学放大。

公开(公告)号：KR100265732B1

公开(公告)日：2000-09-15

申请号：KR1019970061292

申请日：1997-11-19

Applicant: 삼성전자주식회사

Inventor： 성평용 ,  김태경 ,  이철우 ,  유장훈 ,  이용재

IPC: G11B7/1353 ,  G11B7/09

Abstract: PURPOSE: An optical pickup device is provided to promote a regular track servo control by detecting tracking error signals with +- error diffracted beam. CONSTITUTION: An LD(Laser Diode,20) emits laser beams. The laser beams are converted into parallel beams by a collimating lens(25). An objective lens(70) focuses the incident beam via a beam splitter(30) to form optical spots on the recording face of a disk(80). An actuator(60) drives the objective lens. A hologram element(40) passes the incident beams directly from the LD and diffracts the other incident beams reflected from the disk. The hologram element consists of a first and a second hologram region having different diffraction characteristics. A photodetector(90) includes a central beam receiving region for receiving 0th order diffracted beams via the hologram element, and neighboring receiving regions for receiving +- error diffracted beams divided in a cross direction by the hologram regions. An optical pickup device detects tracking error signals by using the +- error diffracted beams obtained by the hologram regions.

Abstract translation: 目的：提供一种光学拾取装置，通过用+误差衍射光束检测跟踪误差信号来促进正常轨道伺服控制。 构成：LD（激光二极管，20）发射激光束。 激光束通过准直透镜（25）转换为平行光束。 物镜（70）通过分束器（30）聚焦入射光束，以在光盘（80）的记录面上形成光斑。 致动器（60）驱动物镜。 全息元件（40）直接从LD通过入射光束并衍射从盘反射的其它入射光束。 全息元件由具有不同衍射特性的第一和第二全息图区域组成。 光电检测器（90）包括用于经由全息元件接收0级衍射光束的中央光束接收区域和用于接收由全息图区域在十字方向上分开的+误差衍射光束的相邻接收区域。 光学拾取装置通过使用由全息图区域获得的+误差衍射光束来检测跟踪误差信号。

公开(公告)号：KR100263931B1

公开(公告)日：2000-08-16

申请号：KR1019930003026

申请日：1993-02-27

Applicant: 삼성전자주식회사

Inventor： 정종삼 ,  유장훈

IPC: H04N5/74

Abstract: PURPOSE: A projection lens system is provided to miniaturize a system by shortening a projection distance from an image generating plane of cathode rays pipe to a screen. CONSTITUTION: A projection lens system injects an image on an image generating plane of cathode rays pipe. The first lens group(G1) includes at least one of the aspherical lens and calibrates a spherical aberration of all of the optical system. The second lends group(G2) compounds a high dispersion lens having a negative power with a low dispersion lens having a positive power to remove chromatic aberration. The second lens group(G2) remove a chromatic aberration. The third lens group(G3) compounds at least one of the aspherical lens and calibrates an abaxial aberration of all of the optical system. A lens planes(S1,S2,S3,S4) conclude least of one of the aspherical lens. The third lens group(G3) concludes two aspherical plastic lens(5,7) and a spherical glass lens(6). An oil chamber(8) is installed to between the aspherical plastic lens(5,7) and a front plane lens(10).

Abstract translation: 目的：提供投影透镜系统，通过缩短从阴极射线管的图像产生面到屏幕的投影距离来使系统小型化。 构成：投影透镜系统将阴影射线管的图像生成面上的图像注入。 第一透镜组（G1）包括非球面透镜中的至少一个并校准所有光学系统的球面像差。 第二伸出组（G2）使具有正功率的低色散透镜具有负功率的高色散透镜，以去除色差。 第二透镜组（G2）去除色差。 第三透镜组（G3）组合至少一个非球面透镜并校准所有光学系统的背面像差。 透镜平面（S1，S2，S3，S4）至少得出非球面透镜中的一个。 第三透镜组（G3）结束了两个非球面塑料透镜（5,7）和球形玻璃透镜（6）。 油室（8）安装在非球面塑料透镜（5,7）和前平面透镜（10）之间。

公开(公告)号：KR1020000038998A

公开(公告)日：2000-07-05

申请号：KR1019980054189

申请日：1998-12-10

Applicant: 삼성전자주식회사

Inventor： 이용재 ,  성평용 ,  유장훈 ,  김태경

IPC: G11B7/095

Abstract: PURPOSE: A detecting method of tilt in an optical disc is provided to detect the tilt of the optical disc by using a detecting signal of a flag sensor to detect a moved amount of an objective lens and a reflective signal in the optical disc without a sensor for detecting the tilt of optical disc. CONSTITUTION: A light irradiated from a light resource and reflected from a mirror area of an optical disc(30) is collected into separating plates(A)(B) of an optical detector. A push-pull signal about the mirror area contained an offset by a shift of objective lens and a tilt of optical disc is detected by differing a detected signal of separating plates(A)(B). A signal contained the offset according to a moved amount of the objective lens is detected from a detected signal of a flag sensor(60). The tilt of optical disc is detected by differing the push-pull signal and the detected signal contained the offset according to the moved amount of the objective lens.

Abstract translation: 目的：提供光盘倾斜的检测方法，通过使用标志传感器的检测信号来检测光盘的倾斜度，以检测物镜的移动量和光盘中没有传感器的反射信号 用于检测光盘的倾斜。 构成：从光源照射并从光盘（30）的镜面区域反射的光被收集到光学检测器的分离板（A）（B）中。 关于反射镜区域的推挽信号包含物镜偏移的偏移，并且通过分离板（A）（B）的检测信号的不同来检测光盘的倾斜。 根据标志传感器（60）的检测信号检测到根据物镜移动量的偏移量的信号。 根据物镜的移动量，通过不同的推挽信号和包含偏移量的检测信号来检测光盘的倾斜。

公开(公告)号：KR100260704B1

公开(公告)日：2000-07-01

申请号：KR1019970041661

申请日：1997-08-27

Applicant: 삼성전자주식회사

Inventor： 유장훈 ,  이용훈 ,  이철우

IPC: G11B7/09

Abstract: PURPOSE: A slim-typed light pickup using total reflection prism is provided to enhance a productivity by using a prism having a non-reflection penetrating characteristic in a vertical incidence and a total reflection characteristic in an above 45 degree incidence. CONSTITUTION: When a laser diode light source(31) is operated, a light having a 650nm wave length and being outputted from the light source(31) is reflected and penetrated successively by the first light separator(321) and the second light separator(322) integrally mounted thereto. The first light separator(321) performs a total reflection of a linear polarized light of S wave from the 650nm wave length using a polarizing light separator for enhancing a light efficiency. The linear polarized light is penetrated by the second light separator(322) and becomes a circle polarized light through a phase plate(34). A collimating lens(33) collimates the light penetrated the phase plate(34) in parallel to a light axis which is vertical to a collimating lens surface. The collimated light is penetrated by a total reflection prism(35). The lights penetrating the total reflection prism(35) is inputted to a ring-shaped shield object lens(36).

Abstract translation: 目的：提供使用全反射棱镜的薄型光拾取器，以通过使用在垂直入射中具有非反射穿透特性的棱镜和在45度以上的全反射特性来提高生产率。 构成：当激光二极管光源（31）工作时，具有650nm波长并从光源（31）输出的光被第一光分离器（321）和第二光分离器（321）依次反射并穿透 322）。 第一光分离器（321）使用偏振光分离器从650nm波长进行S波的线偏振光的全反射，以提高光效。 线偏振光被第二光分离器（322）穿透，并且通过相位板（34）变成圆偏振光。 准直透镜（33）使穿透相位板（34）的光平行于垂直于准直透镜表面的光轴。 准直光被全反射棱镜（35）穿透。 穿透全反射棱镜（35）的光被输入到环形屏蔽物镜（36）。

公开(公告)号：KR1020000031073A

公开(公告)日：2000-06-05

申请号：KR1019980046935

申请日：1998-11-03

Applicant: 삼성전자주식회사

Inventor： 이용재 ,  김태경 ,  성평용 ,  유장훈 ,  유병열 ,  손용기 ,  김석중

IPC: G11B7/09 ,  G11B7/1353

CPC classification number: G11B7/131 ,  G11B7/094 ,  G11B7/0943 ,  G11B7/133 ,  G11B7/1353

Abstract: PURPOSE: An apparatus for detecting error signal of optical pickup adopting hologram grating is provided to depress the generation of focus and/or track error signal offset due to the torsion of light detector and the focus offset due to the wave change of the light source. CONSTITUTION: A light detecting lens(20) focuses light reflected from a recording medium. A hologram grating(30) is formed with first to fourth hologram pattern areas(A,B,C,D) having patterns to diffract incident light in different directions each other and arranged clockwise. A first focus of light(+1) diffracted at the first and the third hologram pattern areas is positioned remotely in comparison with a second focus(f2) of light(+1) diffracted at the second and the fourth hologram pattern areas. A light detector(50) has first to fourth light receiving parts arranged between the first and second focus for respectively receiving the lights diffracted by the first to fourth hologram pattern are as to independently perform photoelectric conversion. A signal operator(60) detects focus error signal and/or track error signal from the detection signals from the light receiving parts.

Abstract translation: 目的：提供一种用于检测采用全息光栅的光学拾取器的误差信号的装置，用于抑制由于光检测器的扭转引起的焦点和/或轨道误差信号偏移的产生以及由于光源的波动引起的聚焦偏移。 构成：光检测透镜（20）对从记录介质反射的光进行聚焦。 全息光栅（30）形成有具有将不同方向上的入射光衍射并且顺时针配置的图案的第一至第四全息图图案区域（A，B，C，D）。 与在第二和第四全息图图案区域衍射的光（+1）的第二焦点（f2）相比，在第一和第三全息图图案区域衍射的光（+1）的第一焦点位于远处。 光检测器（50）具有布置在第一和第二焦点之间的分别接收由第一至第四全息图图案衍射的光的第一至第四光接收部分，以独立地进行光电转换。 信号操作器（60）根据来自光接收部分的检测信号检测聚焦误差信号和/或轨道误差信号。