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21. 发明授权

US6081498A Optical pickup compatible with recordable compact disk and digital video disk using plane parallel plates 失效
标题翻译：光拾取器兼容可记录光盘和使用平面平行板的数字视频盘
公开(公告)号：US6081498A
公开(公告)日：2000-06-27
申请号：US14621
申请日：1998-01-28
申请人： Jang-hoon Yoo , Chul-woo Lee , Chong-sam Chung
发明人： Jang-hoon Yoo , Chul-woo Lee , Chong-sam Chung
IPC分类号： G11B7/135 , G11B7/00 , G11B7/12 , G11B7/125
CPC分类号： G11B7/1365 , G11B7/13922 , G11B2007/0006
摘要： An optical pickup is compatible with at least two types of optical recording media each using light beams having different wavelengths from one another and which are used for recording and reproducing information. The optical pickup includes a first laser light source for emitting a first light beam having a relatively long wavelength, and a second laser light source for emitting a second light beam having a relatively short wavelength. A beam splitting plate transmits the first light beam and reflects the second light beam toward a collimator. The collimator collimates the light beam incident from the beam splitting plate to transmit the collimated light beam into an objective lens. The objective lens is designed so that the second light beam is focused on the information recording surface of a second optical recording medium whose information recording surface is closer to the objective lens than the information recording surface of the first optical recording medium, to form an optical spot optimized to the second optical recording medium. The optical distance from the first laser light source to the information recording surface of a first optical recording medium whose information recording surface is relatively farther from the objective lens, is shorter than the optical distance from the second laser light source to the information recording surface of the second optical recording medium so that spherical aberration occurring when the first light beam is used is removed. An aberration correction plate is located on an optical path between the first laser light source and the beam splitting plate, and corrects an optical aberration occurring when the beam splitting plate is used.
摘要翻译：光学拾取器与至少两种类型的光学记录介质兼容，每种光学记录介质使用彼此不同波长的光束并且用于记录和再现信息。光学拾取器包括用于发射具有较长波长的第一光束的第一激光光源和用于发射具有较短波长的第二光束的第二激光光源。分束板透射第一光束并将第二光束反射到准直仪。准直器准直从分束板入射的光束，将准直光束传输到物镜中。物镜被设计成使得第二光束聚焦在其信息记录表面比第一光学记录介质的信息记录表面更靠近物镜的第二光学记录介质的信息记录表面上，以形成光学对第二光记录介质进行优化。从第一激光光源到其信息记录表面相对远离物镜的第一光记录介质的信息记录表面的光学距离比从第二激光光源到信息记录表面的光学距离短第二光学记录介质，使得当使用第一光束时发生的球面像差被去除。像差校正板位于第一激光光源和分束板之间的光路上，并且校正当使用分束板时发生的光学像差。

22. 发明授权

US5991254A Optical pickup having a multi-coated polarization holographic element 失效
标题翻译：具有多层偏振全息元件的光学拾取器
公开(公告)号：US5991254A
公开(公告)日：1999-11-23
申请号：US903063
申请日：1997-07-30
申请人： Chul-woo Lee , Keon-ho Cho , Chong-sam Chung
发明人： Chul-woo Lee , Keon-ho Cho , Chong-sam Chung
IPC分类号： G11B7/00
CPC分类号： G11B7/1365 , G11B7/1353
摘要： An optical pickup adopting a multi-coated polarization holographic optical element (HOE). The optical pickup has a light source, an objective lens for converging light emitted from the light source on a recording medium, a holographic optical element (HOE) arranged along an optical path between the light source and the objective lens, for changing traveling of the incident light, a phase delay plate arranged between the HOE and the recording medium, for changing a polarization direction of the incident light, and a photodetector for receiving the light reflected by the recording medium, wherein the HOE includes a polarization beam splitter for transmitting one polarized light component of the incident light and reflecting the other polarized light component thereof; and a reflection member having a hologram pattern for diffracting the light passed through the polarization beam splitter, for reflecting the incident light, and wherein the HOE is arranged at an angle between the light source and the phase delay plate. Also, when a transmission-type HOE is adopted, the phase delay plate is arranged at an angle along the optical path between the HOE and the objective lens and includes multiple coating layers for transmitting one polarized light component of the light incident from the light source and reflecting the other polarized light component, and a reflection layer formed on one side of the multiple coating layers, for completely reflecting the incident light.
摘要翻译：采用多层偏振全息光学元件（HOE）的光学拾取器。光拾取器具有光源，用于将从光源发射的光会聚在记录介质上的物镜，沿着光源和物镜之间的光路布置的全息光学元件（HOE），用于改变入射光，布置在HOE和记录介质之间的相位延迟板，用于改变入射光的偏振方向;以及光电检测器，用于接收由记录介质反射的光，其中HOE包括偏振分束器，用于传输一个入射光的偏振光分量并反射其他偏振光分量; 以及反射构件，其具有用于衍射穿过偏振分束器的光用于反射入射光的全息图，并且其中HOE以光源和相位延迟板之间的角度布置。此外，当采用透射型HOE时，相位延迟板沿着HOE和物镜之间的光路以一定角度布置，并且包括多个涂覆层，用于透射从光源入射的光的一个偏振光分量并且反射另一个偏振光分量，以及形成在多个涂层的一侧上的反射层，用于完全反射入射光。

23. 发明授权

US06646976B1 Optical pickup apparatus capable of reducing cross talk by adjacent tracks and a method therefor 失效
标题翻译：能够减少相邻轨道串扰的光拾取装置及其方法
公开(公告)号：US06646976B1
公开(公告)日：2003-11-11
申请号：US09461290
申请日：1999-12-15
申请人： Chong-sam Chung , Young-man Ahn , Tae-kyung Kim , Hea-jung Suh , Seung-tae Jung , Chul-woo Lee , In-sik Park , Dong-ho Shin
发明人： Chong-sam Chung , Young-man Ahn , Tae-kyung Kim , Hea-jung Suh , Seung-tae Jung , Chul-woo Lee , In-sik Park , Dong-ho Shin
IPC分类号： G11B700
CPC分类号： G11B7/005 , G11B7/131 , G11B7/1353 , G11B20/22 , G11B2220/2579
摘要： An optical pickup apparatus which reduces cross talk by adjacent tracks. The optical pickup apparatus divides light reflected from an optical recording medium as a spot into center and side portions defined with respect to the radial direction of the recording medium and provides electrical signals corresponding to the reflected light in divided form. An operation unit multiplies signals corresponding to the side portions by an operation constant, adds the multiplication results and the detected signal of the center portion, and outputs an information signal of a main track with reduced cross talk by adjacent tracks in real time. The optical efficiency is sufficient that recording of an information signal can be performed with the optical pickup.
摘要翻译：一种减少相邻轨道串扰的光拾取装置。光学拾取装置将从光记录介质反射的光作为点分成中心和相对于记录介质的径向限定的侧部，并且以分开的形式提供对应于反射光的电信号。操作单元将与侧面部分对应的信号乘以运算常数，将相乘结果和检测到的中心部分的信号相加，并实时地通过相邻轨道输出具有减小的串扰的主轨道的信息信号。光学效率足以利用光学拾取器进行信息信号的记录。

24. 发明授权

US06430139B1 Objective lens for high-density optical focusing, and optical pickup using the same 失效
标题翻译：用于高密度光学聚焦的物镜，以及使用其的光学拾取器
公开(公告)号：US06430139B1
公开(公告)日：2002-08-06
申请号：US09671710
申请日：2000-09-28
申请人： Jang-hoon Yoo , Kun-ho Cho , Seung-tae Jung , Chul-woo Lee , Chong-sam Chung , Dong-ho Shin
发明人： Jang-hoon Yoo , Kun-ho Cho , Seung-tae Jung , Chul-woo Lee , Chong-sam Chung , Dong-ho Shin
IPC分类号： G11B712
CPC分类号： G11B7/13922 , G11B7/1374 , G11B2007/0006
摘要： A high-density focusing objective lens having a high numerical aperture (NA), which can be easily manufactured by an existing technique, and an optical pickup using the objective lens for high-density recording. The objective lens includes a first transmitting portion placed at a relatively near-axis region from the optical axis to divergently transmit an incident light beam; a first reflecting portion to divergently reflect the incident light beam, the first reflecting portion faces the first transmitting portion; a second reflecting portion, formed at a relatively far-axis region around the first transmitting portion that focuses and reflects the light reflected from the first reflecting portion; and a second transmitting portion, formed at a relatively far-axis region around the first reflecting portion, that refracts and transmits the light beam focused by the second reflecting portion as a peripheral light beam, wherein the maximum angle &agr; between the optical axis and the peripheral light beam satisfies the condition of 30° ≦&agr;≦65°. The optical pickup further includes the previously mentioned objective lens as a second objective lens, which is optionally placed into the optical path between a first objective lens and an optical medium. As a result, the NA of the objective lens unit can be increased up to 0.85 while the working distance d2 is maintained to be 0.2 mm.
摘要翻译：具有可以容易地通过现有技术制造的具有高数值孔径（NA）的高密度聚焦物镜和使用该物镜进行高密度记录的光学拾取器。物镜包括放置在与光轴相对靠近轴的区域的第一透射部分，以发散入射光束; 第一反射部分，其分散地反射入射光束，第一反射部分面向第一透射部分; 第二反射部，形成在第一透射部周围的相对远轴的区域，聚焦并反射从第一反射部反射的光; 以及第二透射部，形成在所述第一反射部周围的相对远轴的区域，所述第二透射部折射并透射由所述第二反射部聚焦的光束作为周边光束，其中，所述光轴与所述第二反射部之间的最大角度α 周边光束满足30°<=α<= 65°的条件。光拾取器还包括作为第二物镜的前述物镜，其可选地放置在第一物镜和光介质之间的光路中。结果，物镜单元的NA可以增加到0.85，而工作距离d2保持为0.2mm。

25. 发明授权

US6016293A Method of discriminating discs having different thickness and optical pickup device adopting the same 失效
标题翻译：鉴别具有不同厚度的光盘的方法以及采用该光盘的光拾取装置
公开(公告)号：US6016293A
公开(公告)日：2000-01-18
申请号：US797697
申请日：1997-02-11
申请人： Chul-woo Lee , Chong-sam Chung , Jang-hoon Yoo
发明人： Chul-woo Lee , Chong-sam Chung , Jang-hoon Yoo
IPC分类号： G11B7/004 , G11B7/00 , G11B7/0037 , G11B7/085 , G11B7/09 , G11B7/125 , G11B7/13 , G11B19/12
CPC分类号： G11B19/12 , G11B7/0037 , G11B7/131 , G11B2007/0006 , G11B2007/13727 , G11B7/0908
摘要： A disc discriminating method and an objective lens adopting the same, in which fast disc type discrimination and stable reproduction signal generation is performed. The method includes the steps of increasing and decreasing a focus voltage applied to an actuator of an objective lens facing a disc having an information-recorded plane to move the objective lens in a standby state at a neutral position to a focus position corresponding to the disc, detecting a movement distance value of the objectiveness from a focus signal applied to the actuator when the objective lens moves to the focus position, comparing the movement distance value with a reference value and determining the disc to be a thick disc if the movement distance value is greater than the reference value, and determining the disc to be a thin disc if the movement distance value is less than the reference value.
摘要翻译：一种光盘鉴别方法及采用该光盘鉴别方法的物镜，其中执行快盘类型识别和稳定再现信号产生。该方法包括以下步骤：增加和减少施加到面向具有信息记录平面的盘的物镜的致动器的聚焦电压，以将处于中性位置的待机状态的物镜移动到对应于光盘的对焦位置当物镜移动到对焦位置时，从施加到致动器的聚焦信号检测出物体的移动距离值，将移动距离值与参考值进行比较，并且如果移动距离值大于参考值，并且如果移动距离值小于参考值，则将盘确定为薄盘。

26. 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。

27. 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。

28. 发明授权

US08493831B2 Compatible optical pickup and optical recording and/or reproducing apparatus employing the same 失效
标题翻译：兼容的光学拾取器和采用该光学拾取器的光学记录和/或再现装置
公开(公告)号：US08493831B2
公开(公告)日：2013-07-23
申请号：US10897015
申请日：2004-07-23
申请人： Ui-yol Kim , Tae-kyung Kim , Chong-sam Chung , Pyong-yong Seong
发明人： Ui-yol Kim , Tae-kyung Kim , Chong-sam Chung , Pyong-yong Seong
IPC分类号： G11B7/00
CPC分类号： G11B7/1353 , G11B7/1275 , G11B7/1374 , G11B2007/0006
摘要： A compatible optical pickup including an optical unit and a focusing unit. The optical unit emits a short wavelength light for high-density recording media and a long wavelength light for low-density recording media, directs the short and long wavelength light to a recording medium, receives lights reflected by the recording medium, and detects an information reproduction signal and/or an error signal from the received lights. The focusing unit focuses light received from the optical unit to form a light spot on a recording surface of the recording medium, diffracts the short wavelength light into a zero order light and the long wavelength light into a second order light to be used as effective light for recording and/or reproduction. Thus, a high-density recording medium and a low-density recording medium having different thicknesses can be compatibly used.
摘要翻译：一种兼容的光学拾取器，包括光学单元和聚焦单元。光学单元发射用于高密度记录介质的短波长光和用于低密度记录介质的长波长光，将短波长和长波长光引导到记录介质，接收由记录介质反射的光，并检测信息再现信号和/或来自接收到的光的误差信号。聚焦单元将从光学单元接收的光聚焦在记录介质的记录表面上形成光点，将短波长的光衍射成零级光，将长波长的光衍射成二阶光，作为有效光用于记录和/或再现。因此，可以兼容使用具有不同厚度的高密度记录介质和低密度记录介质。

29. 发明授权

US07817506B2 Method of transferring data with respect to an optical information storage medium having different track pitches 有权
标题翻译：相对于具有不同轨道间距的光学信息存储介质传送数据的方法
公开(公告)号：US07817506B2
公开(公告)日：2010-10-19
申请号：US11855449
申请日：2007-09-14
申请人： Kyung-geun Lee , In-sik Park , Chong-sam Chung , Du-seop Yoon , Chang-min Park
发明人： Kyung-geun Lee , In-sik Park , Chong-sam Chung , Du-seop Yoon , Chang-min Park
IPC分类号： G11B7/00
CPC分类号： G11B7/24079 , G11B7/00736 , G11B7/0906
摘要： An optical information storage medium includes a lead-in area, a lead-out area, and a user data area between the lead-in and lead-out areas and in which user data is recorded. Pits are formed in the lead-in area, the user data area, and the lead-out area, and a track pitch in all or a portion of the lead-in area is different from a track pitch in the remaining area of the optical information storage medium.
摘要翻译：光学信息存储介质包括在导入区和导出区之间的导入区，导出区和用户数据区，并且记录用户数据。在导入区，用户数据区和导出区形成凹坑，并且导入区的全部或一部分中的轨道间距与光学剩余区域中的轨道间距不同信息存储介质。

30. 发明申请

US20100002301A1 IMAGE STABILIZER 有权
标题翻译：图像稳定器
公开(公告)号：US20100002301A1
公开(公告)日：2010-01-07
申请号：US12494811
申请日：2009-06-30
申请人： Jin-won Lee , Chong-sam Chung , Min-jae Lee , Sung-hyun Kim , Hae-in Chung
发明人： Jin-won Lee , Chong-sam Chung , Min-jae Lee , Sung-hyun Kim , Hae-in Chung
IPC分类号： G02B27/64
CPC分类号： H04N5/23248 , G02B27/646 , H04N5/2328
摘要： An image stabilizer includes a rotor including a lens assembly, and configured to move perpendicular to an optical axis of light passing through the lens assembly, and a suspension unit configured to support movement of the rotor and to prevent the rotor from moving non-perpendicular to the optical axis of the light passing through the lens assembly. Accordingly, the image stabilizer prevents variance of characteristics of a rotor in a low frequency band according to the position and distortion of phase characteristics in a high frequency band. Therefore, the image stabilizer has consistent operation characteristics regardless of the position, posture, and movement of a person using an image capture device containing the image stabilizer.
摘要翻译：图像稳定器包括转子，该转子包括透镜组件，并且被配置为垂直于穿过透镜组件的光的光轴移动;以及悬架单元，其构造成支撑转子的运动并且防止转子非垂直于透过透镜组件的光的光轴。因此，图像稳定器根据高频带中的相位特性的位置和失真来防止低频带中的转子的特性的变化。因此，无论使用包含图像稳定器的图像捕获装置的人的位置，姿势和移动如何，图像稳定器具有一致的操作特性。

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