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公开(公告)号：US20060061887A1
公开(公告)日：2006-03-23
申请号：US11226203
申请日：2005-09-15
Applicant: Byung-youn Song , Hyung-loo Kang , Sang-yol Yoon , Pyong-yong Seong , Young-won Lee
Inventor： Byung-youn Song , Hyung-loo Kang , Sang-yol Yoon , Pyong-yong Seong , Young-won Lee
IPC: G02B7/02
CPC classification number: G11B7/1369 , G11B7/0932 , G11B7/0956 , G11B7/13925 , H05K1/189 , H05K3/3405
Abstract: An optical pickup actuator including a multi-conductive suspension. The optical pickup actuator may include a base, a holder fixed to the base, a bobbin holding an object lens and having a plurality of driving coils, and a plurality of suspensions connected between the bobbin and the holder and movably supporting the bobbin toward the holder, wherein each of the suspensions may be a multi-conductive suspension including a flexible substrate and a plurality of wires, formed on the flexible substrate, applying currents to the coils.
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公开(公告)号：US06873592B2
公开(公告)日：2005-03-29
申请号：US10188860
申请日：2002-07-05
Applicant: Cheol-sung Yeon , Pyong-yong Seong
Inventor： Cheol-sung Yeon , Pyong-yong Seong
CPC classification number: G11B7/1365 , G11B7/123
Abstract: A slim optical pickup apparatus which records/reads information from a recording medium includes a light source, an objective lens which focuses a beam incident from the light source on the recording medium, an optical device which is provided on an optical path between the light source and the objective lens, and converts the beam incident from the light source into a parallel beam, an optical axis shifting unit which is provided on an optical path between the optical device and the objective lens, and shifts an optical axis of the parallel beam passing through the optical device in parallel in a direction, a reflecting mirror which is provided on an optical path between the optical axis shifting unit and the objective lens, and reflects the parallel beam passing through the optical axis shifting unit toward the recording medium, and a photodetector which receives a beam reflected from the recording medium and passed through the optical axis shifting unit, and performs a photoelectric conversion. Use of the optical path shifting unit reduces the height of an optical pickup apparatus, thereby providing a slim optical pickup apparatus using an existing light source and photodetector of a conventional size.
Abstract translation: 从记录介质记录/读取信息的细长光学拾取装置包括光源，将从光源入射的光束聚焦在记录介质上的物镜，设置在光源之间的光路上的光学装置 和物镜，并将从光源入射的光束转换为平行光束;光轴移动单元，设置在光学设备和物镜之间的光路上，并使平行光束通过的光轴移动 通过光学装置沿一个方向平行地设置反射镜，该反射镜设置在光轴移动单元和物镜之间的光路上，并将通过光轴移动单元的平行光束反射到记录介质，以及 光接收器，其接收从记录介质反射并通过光轴移动单元的光束，并执行光电 转换。 使用光路移动单元降低了光学拾取装置的高度，从而提供了使用现有的光源和常规尺寸的光电检测器的超薄光学拾取装置。
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公开(公告)号：US20050052968A1
公开(公告)日：2005-03-10
申请号：US10751114
申请日：2004-01-05
Applicant: Dong-ryeol Lee , Pyong-yong Seong , Kun-soo Kim
Inventor： Dong-ryeol Lee , Pyong-yong Seong , Kun-soo Kim
CPC classification number: G11B7/1365 , G11B7/1275 , G11B7/13922 , G11B7/1395 , G11B2007/0006
Abstract: A compatible type optical pickup using a wedge type beam splitter that can record and/or reproduce information on/from optical recording media having different formats. The compatible type optical pickup includes: a first light source that generates and emits a first light beam of a predetermined wavelength; a second light source that generates and emits a second light beam having a different wavelength from that of the first light beam; a wedge type beam splitter disposed in an optical path between the first and second light sources, which changes the traveling paths of the first and second light beams to allow the first and second light beams to travel along the same optical path and minimizes aberrations; a main beam splitter disposed in an optical path between the wedge type beam splitter and an optical recording medium, which changes the traveling paths of incident light beams; an objective lens that focuses the first and second light beams entered via the main beam splitter onto the optical recording medium; and a main photodetector that receives the first and second light beams reflected from the optical recording medium detects an information signal and an error signal.
Abstract translation: 一种使用楔型分光器的兼容型光学拾取器，其可以在具有不同格式的光学记录介质上记录和/或再现信息。 兼容型光学拾取器包括：产生并发射预定波长的第一光束的第一光源; 产生和发射具有与第一光束的波长不同的波长的第二光束的第二光源; 设置在第一和第二光源之间的光路中的楔形分束器，其改变第一和第二光束的行进路径，以允许第一和第二光束沿着相同的光路行进并使像差最小化; 设置在楔形分束器和光学记录介质之间的光路中的主分束器，其改变入射光束的行进路径; 将通过主分束器进入的第一和第二光束聚焦在光学记录介质上的物镜; 并且接收从光记录介质反射的第一和第二光束的主光电检测器检测信息信号和误差信号。
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54.发明申请Front photo detector having no gain selection switch, optical pick-up including the front photo detector, and optical recording and/or playing apparatus including the front photo detector 失效没有增益选择开关的前光检测器，包括前光检测器的光学拾取器和包括前光检测器的光记录和/或播放装置公开(公告)号：US20050025023A1
公开(公告)日：2005-02-03
申请号：US10792917
申请日：2004-03-05
Applicant: Hong-kyu Lee , Hee-dong Kim , Pyong-yong Seong
Inventor： Hong-kyu Lee , Hee-dong Kim , Pyong-yong Seong
CPC classification number: G11B31/02
Abstract: A front photo detector (FPD) of an optical pick-up for an optical recording and playing apparatus having no gain selection switch, a simplified configuration, an improved prevention of an abnormal operation due to an error in gain selection, and improved reliability. The front photo detector includes a photo diode unit, a current-voltage amplifying circuit, and a voltage amplifying unit. The photo diode unit outputs current proportional to the power of the light emitted from one of a plurality of laser diodes. The current-voltage amplifying circuit converts the current output from the photo diode unit into a voltage. The voltage amplifying circuit amplifies the voltage output from the current-voltage amplifying circuit by a predetermined gain.
Abstract translation: 用于没有增益选择开关的光学记录和播放装置的光学拾取器的前光检测器（FPD），简化的配置，改善了由增益选择中的错误引起的异常操作的防止以及提高的可靠性。 前光检测器包括光电二极管单元，电流 - 电压放大电路和电压放大单元。 光电二极管单元输出与从多个激光二极管中的一个发射的光的功率成比例的电流。 电流 - 电压放大电路将来自光电二极管单元的电流输出转换为电压。 电压放大电路将从电流 - 电压放大电路输出的电压放大预定的增益。
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Patent Agency Ranking
公开(公告)号：US06449241B1
公开(公告)日：2002-09-10
申请号：US09433301
申请日：1999-11-03
Applicant: Pyong-yong Seong , Jung-wan Ko , In-sik Park
Inventor： Pyong-yong Seong , Jung-wan Ko , In-sik Park
IPC: G11B724
CPC classification number: G11B7/24085 , G11B7/007 , G11B7/24
Abstract: An optical disk having an improved structure is provided so that about 15 gigabytes or more can be recorded on each information recording surface. The optical disk includes at least one information substrate having an incident surface where light for recording/reproducing signals is input and a recording surface where information signals are recorded, and at least one reflection layer formed by being coated on the recording surface for reflecting at least a part of incident light. In the optical disk, assuming that the entire thickness of the optical disk is D and the distance between the incident surface and the recording surface of the information substrate is D1, the inequality 0.20≦D1/D≦0.38 is satisfied. Also, the optical disk includes a first information substrate having an incident surface where light for recording/reproducing signals is input and a first recording surface where information signals are recorded, a first reflection layer formed by being coated on the first recording surface for reflecting at least a part of incident light, and a second reflection layer formed on the second recording surface for reflecting at least a part of incident light. In the optical disk, assuming that the entire thickness of the optical disk is D and the distance between the incident surface and the first recording surface of the first information substrate is D1, the inequality 0.20≦D1/D≦0.38 is satisfied.
Abstract translation: 提供了具有改进结构的光盘，使得每个信息记录表面上可以记录大约15吉字节或更多。 光盘包括至少一个具有入射表面的信息衬底，其中输入用于记录/再现信号的光和记录信息信号的记录表面，以及至少一个反射层，其被形成在记录表面上以至少反射 一部分入射光。 在光盘中，假设光盘的整个厚度为D，信息基板的入射表面和记录表面之间的距离为D1，则满足不等式0.20 <= D1 / D <= 0.38。 此外，光盘包括具有入射面的第一信息基板，其中输入用于记录/再现信号的光，以及记录信息信号的第一记录表面，通过涂覆在第一记录表面上形成的第一反射层，用于反射 入射光的至少一部分，以及形成在第二记录面上的第二反射层，用于反射入射光的至少一部分。 在光盘中，假设光盘的整个厚度为D，并且第一信息基板的入射表面和第一记录表面之间的距离为D1，则满足不等式0.20 <= D1 / D <= 0.38。
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公开(公告)号：US5872760A
公开(公告)日：1999-02-16
申请号：US865141
申请日：1997-05-29
Applicant: Tae-kyoung Kim , Pyong-yong Seong , Chul-woo Lee
Inventor： Tae-kyoung Kim , Pyong-yong Seong , Chul-woo Lee
CPC classification number: G11B7/1376 , G11B7/1398
Abstract: An optical pickup for correcting an astigmatic difference of a light by using a collimating lens arranged at an angle with respect to the thickness direction of an active layer of a light source and parallel to the width direction of the active layer, for collimating the light emitted from the light source, is provided. The collimating lens is arranged between an edge emitting laser diode having an active layer and a beam splitter, and corrects the astigmatic difference of the light emitted from the edge emitting laser diode. Therefore, a compact optical pickup can be achieved since additional optical elements for correcting the astigmatic difference of the laser beam are not required.
Abstract translation: 一种光学拾取器，用于通过使用相对于光源的有源层的厚度方向成一定角度并平行于有源层的宽度方向布置的准直透镜来校正光的散光差异，用于准直发光的光 从光源提供。 准直透镜布置在具有有源层的边缘发射激光二极管和分束器之间，并且校正从边缘发射激光二极管发射的光的像散差。 因此，不需要用于校正激光束的像散差的附加光学元件，因此可以实现紧凑的光学拾取器。
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57.发明授权
公开(公告)号：US5870369A
公开(公告)日：1999-02-09
申请号：US799928
申请日：1997-02-13
Applicant: Chong-sam Chung , Chul-woo Lee , Pyong-yong Seong
Inventor： Chong-sam Chung , Chul-woo Lee , Pyong-yong Seong
CPC classification number: G11B7/1374 , G11B7/131 , G11B7/1381 , G11B7/13922 , G11B2007/0006 , G11B7/0901 , G11B7/0908
Abstract: An objective lens device having two light control surfaces and an optical pickup able to adopt disks having different thicknesses as a recording medium. The objective lens device includes an objective lens arranged along an optical path parallel to the disks, and first and second control portions formed in a light incident surface of the objective lens, a light emitting surface thereof, or an extra transparent member. Therefore, two disks having different thicknesses are compatible as a recording medium, and light interference occurring when using a thick disk can be decreased.
Abstract translation: 具有两个光控制面的物镜装置和能够采用不同厚度的盘作为记录介质的光拾取器。 物镜装置包括沿着与盘平行的光路布置的物镜，以及形成在物镜的光入射面，其发光面或多透明构件中的第一和第二控制部。 因此，具有不同厚度的两个盘作为记录介质是兼容的，并且可以减少使用厚盘时发生的光干涉。
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58.发明授权Optical pickup device with light spot size adjustment for different density disks 失效具有不同密度盘的光斑尺寸调整的光学拾取装置
公开(公告)号：US5701288A
公开(公告)日：1997-12-23
申请号：US564430
申请日：1995-11-29
Applicant: Pyong-yong Seong
Inventor： Pyong-yong Seong
CPC classification number: G11B7/094 , G11B19/12 , G11B7/005 , G11B7/0945 , G11B2007/0006 , G11B7/0908
Abstract: An object pickup device includes a light source, an object lens for concentrating light generated from the light source onto an optical disk, a photodetector for detecting a signal from the light reflected from the optical disk, a disk detecting portion for detecting the light quantity in a light spot concentrated on the optical disk by the object lens and for detecting the optical disk type, a focus offset calculating portion for calculating a focus offset corresponding to the detected disk type, a focus servo portion for performing a focus servo mechanism according to the signal calculated from the focus offset and the signals detected in the photodetector, and a light output optimizing means for optimizing the light output of the light source according to the calculated focus offset signal. Meanwhile, a controlling method of a light output in the optical pickup device includes a disk kind detecting step, a focus offset calculating step, a focus offset adjusting step, and a compensating a focus and track error step.
Abstract translation: 一种物体拾取装置，包括光源，用于将从光源产生的光集中到光盘上的物镜，用于检测来自光盘反射的光的信号的光电检测器，用于检测来自光盘的光量的光盘检测部分 通过物镜集中在光盘上并用于检测光盘类型的光斑;聚焦偏移计算部分，用于计算与检测到的光盘类型相对应的聚焦偏移;聚焦伺服部分，用于执行根据所述光盘类型的聚焦伺服机构; 根据所述聚焦偏移和在所述光电检测器中检测到的信号计算的信号;以及光输出优化装置，用于根据所计算的聚焦偏移信号优化所述光源的光输出。 同时，光拾取装置中的光输出的控制方法包括盘类型检测步骤，聚焦偏移计算步骤，聚焦偏移调整步骤和补偿聚焦和轨道误差步骤。
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59.发明授权Method for correcting aberration due to optical disk tilt and apparatus therefor 失效用于校正由于光盘倾斜引起的像差的方法及其装置
公开(公告)号：US5699340A
公开(公告)日：1997-12-16
申请号：US585253
申请日：1995-12-26
Applicant: Chul-woo Lee , Kyung-hwa Rhim , Pyong-yong Seong , Chong-sam Chung
Inventor： Chul-woo Lee , Kyung-hwa Rhim , Pyong-yong Seong , Chong-sam Chung
CPC classification number: G11B7/1365 , G11B7/0956
Abstract: In a method and an apparatus for correcting aberration due to optical disk tilt, the apparatus includes a correction plate through which a first light beam passes by an object lens in an optical disk, a light source and a photo detector for generating and receiving a second light beam to detect the magnitude of the optical disk tilt, respectively, and an actuator for inclining the correction plate based on the detected signal. The correction plate has the same optical properties as those of the substrate of the optical disk, irrespective of the optical pick surroundings and offset the aberration due to the optical disk tilt. Therefore, while the best performance of the optical pickup is ensured, adverse effects caused by the aberration due to the optical disk tilt can be eliminated through simple circuitry.
Abstract translation: 在用于校正由于光盘倾斜引起的像差的方法和装置中，该装置包括：校正板，第一光束通过光盘中的物镜，光源和光电检测器，用于产生和接收第二光 光束分别检测光盘倾斜的大小，以及用于基于检测到的信号倾斜校正板的致动器。 校正板具有与光盘基板相同的光学特性，而与光拾取环境无关，并且偏移了由于光盘倾斜引起的像差。 因此，虽然确保了光学拾取器的最佳性能，但是可以通过简单的电路消除由于光盘倾斜引起的像差引起的不利影响。
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