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1. 发明授权

US5822135A Lens device including a light controlling mechanism and an optical pickup apparatus using a lens device 失效
公开(公告)号：US5822135A
公开(公告)日：1998-10-13
申请号：US640474
申请日：1996-05-01
申请人： Chul-woo Lee , Dong-ho Shin , Kyung-hwa Rim , Chong-sam Chung , Kun-ho Cho , Pyong-yong Seong , Jang-hoon Yoo , Yong-hoon Lee
发明人： Chul-woo Lee , Dong-ho Shin , Kyung-hwa Rim , Chong-sam Chung , Kun-ho Cho , Pyong-yong Seong , Jang-hoon Yoo , Yong-hoon Lee
IPC分类号： B29D11/00 , G02B3/10 , G02B27/58 , G11B7/00 , G11B7/0045 , G11B7/005 , G11B7/09 , G11B7/13 , G11B7/135 , G02B9/00
CPC分类号： G11B7/1353 , B29D11/00009 , G02B27/58 , G02B3/10 , G11B7/0909 , G11B7/133 , G11B7/1367 , G11B7/1374 , G11B7/1381 , G11B7/13922 , G11B2007/0006 , G11B2007/13727 , G11B7/0045 , G11B7/005 , Y10S425/808
摘要： A lens device which can be used as an objective lens in an optical pickup apparatus includes an objective lens provided along a light path facing a disc and having a predetermined effective diameter, and light controlling means provided along the light path for controlling the light in an intermediate region between near and far axes of an incident light beam, thus providing a simplified and inexpensive device for using discs of differing thickness in a single disc drive, by reducing the spherical aberration effect.

2. 再颁专利

USRE39025E1 Lens device including a light controlling mechanism and an optical pickup apparatus using a lens device 有权
标题翻译：包括光控制机构的透镜装置和使用透镜装置的光学拾取装置
公开(公告)号：USRE39025E1
公开(公告)日：2006-03-21
申请号：US09689757
申请日：2000-10-13
申请人： Chul-woo Lee , Dong-ho Shin , Kyung-hwa Rim , Chong-sam Chung , Kun-ho Cho , Pyong-yong Seong , Jang-hoon Yoo , Yong-hoon Lee
发明人： Chul-woo Lee , Dong-ho Shin , Kyung-hwa Rim , Chong-sam Chung , Kun-ho Cho , Pyong-yong Seong , Jang-hoon Yoo , Yong-hoon Lee
IPC分类号： G02B9/00
CPC分类号： G11B7/1353 , G02B3/10 , G02B27/58 , G11B7/0909 , G11B7/133 , G11B7/1367 , G11B7/1374 , G11B2007/0006 , G11B2007/13727
摘要： A lens device which can be used as an objective lens in an optical pickup apparatus includes an objective lens provided along a light path facing a disc and having a predetermined effective diameter, and light controlling means provided along the light path for controlling the light in an intermediate region between near and far axes of an incident light beam, thus providing a simplified and inexpensive device for using discs of differing thickness in a single disc drive, by reducing the spherical aberration effect.
摘要翻译：可以在光学拾取装置中用作物镜的透镜装置包括沿着光盘面向盘并具有预定有效直径的物镜，沿着光路设置的光控制装置，用于控制光入射光束的近轴和远轴之间的中间区域，从而通过减小球面像差效应来提供在单个盘驱动器中使用不同厚度的盘的简化且便宜的装置。

3. 发明授权

US5987924A Lens mold and method of manufacturing a lens 失效
标题翻译：透镜模具及其制造方法
公开(公告)号：US5987924A
公开(公告)日：1999-11-23
申请号：US122846
申请日：1998-07-27
申请人： Chul-woo Lee , Dong-ho Shin , Kyung-hwa Rim , Chong-sam Chung , Kun-ho Cho , Pyong-yong Seong , Jang-hoon Yoo , Yong-hoon Lee
发明人： Chul-woo Lee , Dong-ho Shin , Kyung-hwa Rim , Chong-sam Chung , Kun-ho Cho , Pyong-yong Seong , Jang-hoon Yoo , Yong-hoon Lee
IPC分类号： B29D11/00 , G02B3/10 , G02B27/58 , G11B7/00 , G11B7/0045 , G11B7/005 , G11B7/09 , G11B7/13 , G11B7/135 , C03B11/00
CPC分类号： G11B7/1353 , B29D11/00009 , G02B27/58 , G02B3/10 , G11B7/0909 , G11B7/133 , G11B7/1367 , G11B7/1374 , G11B7/1381 , G11B7/13922 , G11B2007/0006 , G11B2007/13727 , G11B7/0045 , G11B7/005 , Y10S425/808
摘要： A lens device which can be used as an objective lens in an optical pickup apparatus includes an objective lens provided along a light path facing a disc and having a predetermined effective diameter, and light controlling means provided along the light path for controlling the light in an intermediate region between near and far axes of an incident light beam, thus providing a simplified and inexpensive device for using discs of differing thickness in a single disc drive, by reducing the spherical aberration effect.
摘要翻译：可以在光学拾取装置中用作物镜的透镜装置包括沿着光盘面向盘并具有预定有效直径的物镜，沿着光路设置的光控制装置，用于控制光入射光束的近轴和远轴之间的中间区域，从而通过减小球面像差效应来提供在单个盘驱动器中使用不同厚度的盘的简化且便宜的装置。

4. 发明授权

US5665957A Lens device comprising light blocking means and an optical pickup apparatus using the lens device 失效
标题翻译：包括遮光装置的透镜装置和使用透镜装置的光学拾取装置
公开(公告)号：US5665957A
公开(公告)日：1997-09-09
申请号：US640553
申请日：1996-05-01
申请人： Chul-woo Lee , Dong-ho Shin , Kyung-hwa Rim , Chong-sam Chung , Kun-ho Cho , Pyong-yong Seong , Jang-hoon Yoo , Yong-hoon Lee
发明人： Chul-woo Lee , Dong-ho Shin , Kyung-hwa Rim , Chong-sam Chung , Kun-ho Cho , Pyong-yong Seong , Jang-hoon Yoo , Yong-hoon Lee
IPC分类号： B29D11/00 , G02B3/10 , G02B27/58 , G11B7/00 , G11B7/0045 , G11B7/005 , G11B7/09 , G11B7/13 , G11B7/135 , G01S1/20 , H01J3/14
CPC分类号： G11B7/1353 , B29D11/00009 , G02B27/58 , G02B3/10 , G11B7/0909 , G11B7/133 , G11B7/1367 , G11B7/1374 , G11B7/1381 , G11B7/13922 , G11B2007/0006 , G11B2007/13727 , G11B7/0045 , G11B7/005 , Y10S425/808
摘要： A lens device which can be used as an objective lens in an optical pickup apparatus includes an objective lens provided along a light path facing a disc and having a predetermined effective diameter, and light controlling means provided along the light path for controlling the light in an intermediate region between near and far axes of an incident light beam, thus providing a simplified and inexpensive device for using discs of differing thickness in a single disc drive, by reducing the spherical aberration effect.
摘要翻译：可以在光学拾取装置中用作物镜的透镜装置包括沿着光盘面向盘并具有预定有效直径的物镜，沿着光路设置的光控制装置，用于控制光入射光束的近轴和远轴之间的中间区域，从而通过减小球面像差效应来提供在单个盘驱动器中使用不同厚度的盘的简化且便宜的装置。

5. 发明授权

US5594714A Focus error detection with two symmetrically splitted reflected beams 失效
标题翻译：使用两个对称分裂的反射光束进行聚焦误差检测
公开(公告)号：US5594714A
公开(公告)日：1997-01-14
申请号：US366255
申请日：1994-12-29
申请人： Chul-woo Lee , Kyung-hwa Rim , Pyong-yong Seong , Chong-sam Chung
发明人： Chul-woo Lee , Kyung-hwa Rim , Pyong-yong Seong , Chong-sam Chung
IPC分类号： G11B7/13 , G11B7/09 , G11B7/135 , G11B7/00
CPC分类号： G11B7/131 , G11B7/0908 , G11B7/0917 , G11B7/0943
摘要： In an optical pickup, a focus error detector for detecting a focus error of an objective lens for an optical disk includes a focusing lens for focusing the reflected light of the optical disk, a diffraction optical device for diffracting the reflected light focused by the focusing lens into two light rays, two bi-segmented photo-detectors for receiving the two split light rays, respectively, and a circuit for outputting a desired focus error signal from the signal detected from the photo-detectors. The circuit outputs a pure focus error signal without errors created by the deviation of the light amount in the photo-detectors due to the tilt or shift of the reflected light, thereby contributing to the stable operation and miniaturization of the optical pickup.
摘要翻译：在光拾取器中，用于检测光盘的物镜的聚焦误差的聚焦误差检测器包括：用于聚焦光盘的反射光的聚焦透镜;用于衍射由聚焦透镜聚焦的反射光的衍射光学装置分别用于接收两个分开的光线的两个双段光电检测器和用于从从光电检测器检测的信号中输出所需的聚焦误差信号的电路。由于反射光的倾斜或偏移，电路输出纯聚焦误差信号，而不会由于光检测器中光量的偏差而产生误差，从而有助于光拾取器的稳定操作和小型化。

6. 发明授权

US5870369A Objective lens device including an objective lens and a transparent member having two light control portions and optical pickup using the objective lens device 失效
标题翻译：物镜包括物镜和具有两个光控制部分的透明部件和使用该物镜装置的光学拾取器
公开(公告)号：US5870369A
公开(公告)日：1999-02-09
申请号：US799928
申请日：1997-02-13
申请人： Chong-sam Chung , Chul-woo Lee , Pyong-yong Seong
发明人： Chong-sam Chung , Chul-woo Lee , Pyong-yong Seong
IPC分类号： G11B7/08 , G11B7/00 , G11B7/09 , G11B7/125 , G11B7/13 , G11B7/135
CPC分类号： G11B7/1374 , G11B7/131 , G11B7/1381 , G11B7/13922 , G11B2007/0006 , G11B7/0901 , G11B7/0908
摘要： 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.
摘要翻译：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。

7. 发明授权

US5699340A Method for correcting aberration due to optical disk tilt and apparatus therefor 失效
标题翻译：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
申请人： Chul-woo Lee , Kyung-hwa Rhim , Pyong-yong Seong , Chong-sam Chung
发明人： Chul-woo Lee , Kyung-hwa Rhim , Pyong-yong Seong , Chong-sam Chung
IPC分类号： G11B7/08 , G11B7/095 , G11B7/135
CPC分类号： G11B7/1365 , G11B7/0956
摘要： 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.
摘要翻译：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。

8. 发明授权

US06480222B1 Semiconductor laser and flying optical pickup for recording/reproducing using the same 失效
标题翻译：半导体激光器和飞行光学拾取器，用于使用其进行记录/再现
公开(公告)号：US06480222B1
公开(公告)日：2002-11-12
申请号：US08445509
申请日：1995-05-22
申请人： Chul-woo Lee , Jang-hoon Yoo , Pyong-yong Seong
发明人： Chul-woo Lee , Jang-hoon Yoo , Pyong-yong Seong
IPC分类号： B41J2700
CPC分类号： B82Y10/00 , G11B7/122
摘要： A semiconductor laser for generating a laser beam and an optical pickup for recording/reproducing information using the semiconductor laser as an optical source are provided. The semiconductor laser includes an aperture member on an emitting end thereof to perform high-density memory recording/reproducing through the reduction of an optical spot. The aperture has a hole whose diameter is smaller than the width of the active region of the semiconductor laser, to thereby restrictively emit the laser beam via the hole so that the optical spot formed on an optical disk is reduced. Thus, high-density memory recording/reproducing, which is useful for miniaturized information processors, can be realized.
摘要翻译：提供了一种用于产生激光束的半导体激光器和用于使用半导体激光器作为光源来记录/再现信息的光学拾取器。半导体激光器包括在其发射端上的孔径构件，以通过减少光点来执行高密度存储器记录/再现。孔具有直径小于半导体激光器的有源区的宽度的孔，从而通过孔限制性地发射激光束，使得形成在光盘上的光点减小。因此，可以实现对小型化信息处理器有用的高密度存储器记录/再现。

9. 发明授权

US6167004A Error signal detecting apparatus of optical pickup adopting hologram grating 有权
标题翻译：采用全息光栅的光学拾取器的误差信号检测装置
公开(公告)号：US6167004A
公开(公告)日：2000-12-26
申请号：US433296
申请日：1999-11-03
申请人： Yong-jae Lee , Tae-Kyung Kim , Pyong-yong Seong , Jang-hoon Yoo , Byung-ryul Ryoo , Yong-ki Son , Seok-jung Kim
发明人： Yong-jae Lee , Tae-Kyung Kim , Pyong-yong Seong , Jang-hoon Yoo , Byung-ryul Ryoo , Yong-ki Son , Seok-jung Kim
IPC分类号： G11B7/09 , G11B7/13 , G11B7/135 , G11B7/00
CPC分类号： G11B7/131 , G11B7/094 , G11B7/0943 , G11B7/133 , G11B7/1353
摘要： An error signal detecting apparatus for an optical pickup employing a hologram grating, including a sensing lens for focusing light reflected from a recording medium, a hologram grating having first through fourth pattern regions arranged clockwise in a 2.times.2 matrix arrangement, for diffracting light incident from the sensing lens in different directions, wherein the first through fourth pattern regions a, b, c and d are formed such that a first focus of the +1st-order diffracted beams diffracted by the first and third pattern regions is relatively farther from the sensing lens than a second focus of the +1st-order diffracted beams diffracted by the second and fourth pattern regions, a photodetector disposed between the first and second focuses and having first through fourth light receiving units, for receiving the beams diffracted by the first through fourth pattern regions and independently photoelectrically converting the same, and a signal operation unit for detecting a focus error signal and/or a track error signal from detection signals of the light receiving parts. The error signal detecting apparatus can suppress generation of an offset of a focus error signal due to a change in the wavelength of a light source and an offsets of the focus error signal and track offset signal due to deviations of the photodetector.
摘要翻译：一种用于采用全息光栅的光学拾取器的误差信号检测装置，包括用于聚焦从记录介质反射的光的感测透镜，具有以2x2矩阵排列顺时针排列的第一至第四图案区域的全息图光栅，用于衍射从感光透镜，其中第一至第四图案区域a，b，c和d被形成为使得由第一和第三图案区域衍射的+ 1级衍射光束的第一焦点相对较远离感测透镜比由第二和第四图案区域衍射的+ 1级衍射光束的第二焦点，设置在第一和第二焦点之间并具有第一至第四光接收单元的光电检测器，用于接收由第一至第四图案衍射的光束区域并独立地对其进行光电转换;以及信号操作单元，用于检测聚焦误差信号和/或来自光接收部分的检测信号的轨道误差信号。误差信号检测装置可以抑制由于光源的波长的变化引起的聚焦误差信号的偏移的产生以及由于光电检测器的偏差引起的聚焦误差信号和光道偏移信号的偏移。

10. 发明授权

US06381207B1 Optical pickup movable to control beam shift and field angle in an optical disk drive 有权
标题翻译：光拾取器可移动以控制光盘驱动器中的光束偏移和场角
公开(公告)号：US06381207B1
公开(公告)日：2002-04-30
申请号：US09410627
申请日：1999-10-01
申请人： Byung-ryul Ryoo , Pyong-yong Seong , Seok-jung Kim , Yong-ki Son , Tae-kyung Kim , Yong-jae Lee , Jang-hoon Yoo
发明人： Byung-ryul Ryoo , Pyong-yong Seong , Seok-jung Kim , Yong-ki Son , Tae-kyung Kim , Yong-jae Lee , Jang-hoon Yoo
IPC分类号： G11B3302
CPC分类号： G11B7/22
摘要： An optical pickup of an optical disk drive. The optical pickup includes a laser beam source for generating a laser beam; a pickup base having an objective lens for projecting the laser beam generated from the laser beam source to an information recording surface of an optical disk; a variation adjusting plate which is movably disposed on the pickup base to be moved in vertical and lateral directions, and has a rotational hole formed at a central portion thereof; and a rotation adjusting plate including a rotational section having a predetermined curvature which is inserted into the rotational hole of the variation adjusting plate, and with a laser beam source fixed therein, the rotation adjusting plate being rotated with respect to the variation adjusting plate. An optical system including a collimating lens and a reflective mirror is fixed to the pickup base. Since the light path with respect to the field angle and the beam shift is adjusted by moving and/or rotating the light emitting point of the laser beam source with respect to the light axis of the collimating lens, the size of the optical pickup becomes smaller. Further, since the collimating lens and the light source are fixed to the respective structures, the light path is controlled regardless of the focal distance of the collimating lens. Accordingly, if the focal distance of the collimating lens has to be lengthened, the beam shift and the field angle can be precisely adjusted without enlarging the optical pickup.
摘要翻译：光盘驱动器的光学拾取器。光学拾取器包括用于产生激光束的激光束源; 具有用于将从激光束源产生的激光束投射到光盘的信息记录表面的物镜的拾取器基座; 可移动地设置在拾取器基座上以在垂直和横向方向上移动的变化调节板，并且具有形成在其中心部分的旋转孔; 以及旋转调节板，其包括插入到变化调节板的旋转孔中的具有预定曲率的旋转部分和固定在其中的激光束源，旋转调节板相对于变化调节板旋转。包括准直透镜和反射镜的光学系统固定在拾取器基座上。由于通过相对于准直透镜的光轴移动和/或旋转激光束源的发光点来调节相对于场角和光束偏移的光路，所以光拾取器的尺寸变小。此外，由于准直透镜和光源被固定到各个结构，所以不管准直透镜的焦距如何，都可以控制光路。因此，如果准直透镜的焦距必须延长，则可以在不放大光学拾取器的情况下精确地调整光束偏移和场角。

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