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1. 发明授权

US07606135B2 Optical recording/reproducing apparatus capable of recording/reproducing information onto/from various types of optical recording media of different recording densities and different thicknesses 有权
标题翻译：能够在不同记录密度和不同厚度的各种类型的光学记录介质上记录/再现信息的光学记录/再现设备
公开(公告)号：US07606135B2
公开(公告)日：2009-10-20
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： G11B7/00
CPC分类号： G11B7/1275 , G11B7/1353 , G11B2007/0006
摘要： An optical recording/reproducing apparatus including 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：一种光学记录/再现装置，包括发射具有不同波长的光的多个光源，用于在/不同记录密度的各种类型的光学记录介质上记录/再现信息，其中从光源发射的至少两个光具有极化分量彼此正交; 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。

2. 发明申请

US20070070825A1 Optical pick-up apparatus for multi recording/reproducing 有权
标题翻译：用于多重记录/再现的光学拾取装置
公开(公告)号：US20070070825A1
公开(公告)日：2007-03-29
申请号：US10577441
申请日：2004-04-09
申请人： Bong-gi Kim , Tae-youn Heor , Seong-su Park , Chun-seong Park , Soo-han Park
发明人： Bong-gi Kim , Tae-youn Heor , Seong-su Park , Chun-seong Park , Soo-han Park
IPC分类号： G11B11/00
CPC分类号： G11B7/1275 , G11B7/123 , G11B7/131 , G11B7/1353 , G11B2007/0006
摘要： An optical pickup apparatus is provided for use in a recording/reproducing apparatus to record/reproduce information on/from recording media having different formats. Such an optical pickup apparatus comprises a dual wavelength laser diode; a hologram module arranged to split a light which is incident to a recording medium into a plurality of beams; and a photo-detector arranged to receive a light beam reflected from the recording medium and detect an information signal and a signal for servo control. Each of the split beams is focused on a predetermined position corresponding to a format of the recording medium. The light beams reflected from the recording medium are detected by the photo-detector to generate a focus error signal and a tracking error signal. Thus, the optical pickup apparatus records and reproduces information on and from recording media having different formats by using a hologram of a simple pattern. The optical structure of the optical pickup apparatus is simple which enables easy assembly and manufacture and provides signal regeneration when operating in a high temperature.
摘要翻译：提供一种用于记录/再现装置的光拾取装置，用于在具有不同格式的记录介质上记录/再现信息。这种光拾取装置包括双波长激光二极管; 全息图模块，被布置成将入射到记录介质的光分成多个光束; 以及光检测器，其布置成接收从记录介质反射的光束，并检测信息信号和用于伺服控制的信号。每个分割光束聚焦在对应于记录介质的格式的预定位置上。由光检测器检测从记录介质反射的光束，以产生聚焦误差信号和跟踪误差信号。因此，光学拾取装置通过使用简单图案的全息图在具有不同格式的记录介质上记录和再现信息。光学拾取装置的光学结构简单，能够容易地进行组装和制造，并且在高温操作时提供信号再生。

3. 发明申请

US20050161579A1 Optical pickup 有权
标题翻译：光学拾音
公开(公告)号：US20050161579A1
公开(公告)日：2005-07-28
申请号：US11035042
申请日：2005-01-14
申请人： Tae-kyung Kim , Young-man Ahn , Chong-sam Chung , Seok-jung Kim , Tae-youn Heor
发明人： Tae-kyung Kim , Young-man Ahn , Chong-sam Chung , Seok-jung Kim , Tae-youn Heor
IPC分类号： G11B7/09 , G11B7/13 , G11B7/135 , G11B7/24 , G02B7/04 , H01J5/16
CPC分类号： G11B7/1353 , G11B7/0903 , G11B7/131
摘要： An optical pickup including an optical member which inhibits interference light reflected from an adjacent layer from being received by a photodetector when an optical information storage medium includes a plurality of recording layers on at least one side thereof. The optical pickup suppresses a photodetector, especially first and second sub-photodetectors of the photodetector, from receiving the interference light reflected from the adjacent layer.
摘要翻译：一种光学拾取器，当光学信息存储介质在其至少一侧包括多个记录层时，该光学拾取器包括抑制从相邻层反射的干涉光被光电检测器接收的光学部件。光学拾取器抑制光电检测器，特别是光电检测器的第一和第二子光电检测器，以接收从相邻层反射的干涉光。

4. 发明授权

US07715297B2 Optical pickup apparatus and method to reproduce information onto and from discs having different thicknesses and storage capacities 失效
标题翻译：在具有不同厚度和存储容量的光盘上再现信息的光学拾取装置和方法
公开(公告)号：US07715297B2
公开(公告)日：2010-05-11
申请号：US11150116
申请日：2005-06-13
申请人： Tae-youn Heor , Bong-gi Kim , Seong-su Park
发明人： Tae-youn Heor , Bong-gi Kim , Seong-su Park
IPC分类号： G11B7/00
CPC分类号： G11B7/1353 , G11B7/0903 , G11B2007/0006
摘要： An optical pickup apparatus and method for recording and/or reproducing information onto and/or from optical discs having diverse specifications. Particularly, a diffraction grating for use in the optical pickup apparatus includes a substrate for refracting an output beam from a laser diode at a predetermined refractive index, a liquid crystal for refracting the beam, which is transmitted through the substrate, at a different refractive index and direction according to a track pitch of the optical disc, an electrode material for supplying power to the liquid crystal, and a switch for controlling power supply to the electrode material. Electrode materials are aligned with various spacing in order to change the refractive index of the liquid crystal according to the wavelength of a laser and the specification of an optical disc used. Also, power supply to the electrode materials is controlled depending on the optical disc specification.
摘要翻译：一种用于在具有不同规格的光盘上和/或从其上记录和/或再现信息的光学拾取装置和方法。特别地，用于光学拾取装置的衍射光栅包括用于以预定折射率折射来自激光二极管的输出光束的衬底，用于折射透射通过衬底的光束的液晶以不同的折射率和根据光盘的轨道间距的方向，用于向液晶供电的电极材料和用于控制对电极材料的电力供给的开关。为了根据激光的波长和使用的光盘的规格来改变液晶的折射率，电极材料以各种间隔对准。此外，根据光盘规格来控制对电极材料的供电。

5. 发明申请

US20060136954A1 Optical pickup actuator and optical recording and/or reproducing apparatus 失效
标题翻译：光拾取器致动器和光学记录和/或再现装置
公开(公告)号：US20060136954A1
公开(公告)日：2006-06-22
申请号：US11311390
申请日：2005-12-20
申请人： Seok-jung Kim , Jung-gug Pae , Hyung-hoon Kang , Young-man Ahn , Tae-youn Heor
发明人： Seok-jung Kim , Jung-gug Pae , Hyung-hoon Kang , Young-man Ahn , Tae-youn Heor
IPC分类号： G11B7/09 , G11B7/085 , G11B7/08
CPC分类号： G11B7/0935 , G11B7/0933 , G11B7/0956 , G11B2007/0006
摘要： An optical pickup actuator comprises a lens holder having an object lens which focuses a laser beam onto an optical information storage medium mounted thereon. In the optical pickup actuator the lens holder is movably supported by a support member with respect to a base. The optical pickup actuator also comprises a magnetic circuit to drive the lens holder in a focusing direction and a tilt direction independently.
摘要翻译：光拾取器致动器包括具有将激光束聚焦到安装在其上的光学信息存储介质上的物镜的透镜保持器。在光学拾取器致动器中，透镜保持器相对于基座由支撑构件可移动地支撑。光拾取器致动器还包括一个磁路，用于在聚焦方向和倾斜方向上独立地驱动透镜架。

6. 发明申请

US20060136953A1 Optical pickup actuator and optical recording/reproducing apparatus 失效
标题翻译：光学拾音器致动器和光学记录/再现装置
公开(公告)号：US20060136953A1
公开(公告)日：2006-06-22
申请号：US11311350
申请日：2005-12-20
申请人： Seok-jung Kim , Jung-gug Pae , Hyung-hoon Kang , Young-man Ahn , Tae-youn Heor
发明人： Seok-jung Kim , Jung-gug Pae , Hyung-hoon Kang , Young-man Ahn , Tae-youn Heor
IPC分类号： G11B7/09 , G11B7/085 , G11B7/08
CPC分类号： G11B7/1374 , G11B7/0933 , G11B7/0935 , G11B7/0956 , G11B2007/0006
摘要： An optical pickup actuator is provided. The actuator comprises a bobbin, on which one or more objective lenses are mounted for allowing light to be incident onto an optical information storage medium, and which is supported by a support member to be movable in relation to a base. The actuator also comprises a magnetic circuit for independently driving the bobbin in focusing and tilt directions.
摘要翻译：提供光学拾取器致动器。致动器包括一个线轴，一个或多个物镜安装在该线轴上，用于允许光入射到光学信息存储介质上，并由相对于基座可移动的支撑构件支撑。致动器还包括用于在聚焦和倾斜方向独立地驱动线轴的磁路。

7. 发明授权

US07450487B2 Optical pickup apparatus 有权
标题翻译：光拾取装置
公开(公告)号：US07450487B2
公开(公告)日：2008-11-11
申请号：US11146189
申请日：2005-06-07
申请人： Tae-youn Heor , Tae-yun Kim , Jung-woo Hong
发明人： Tae-youn Heor , Tae-yun Kim , Jung-woo Hong
IPC分类号： G11B7/00
CPC分类号： G11B7/1381 , G11B7/0903 , G11B7/131 , G11B7/1369 , G11B2007/0006
摘要： A photo detector for use in an optical pickup apparatus that detects a beam reflected from the disc, and includes a substrate for transmitting one main beam and two sub beams reflected from the optical disc; a liquid crystal for refracting the two sub beams, that are transmitted through the substrate, at different refractive indexes according to the wavelength of a laser beam outputted from the laser diode; an electrode material for supplying power to the liquid crystal; a switch for adjusting the magnitude of an applied voltage to the electrode material; and a photodiode on which the main beam and the refracted sub beams while transmitting the substrate and the liquid crystal are projected, and transformed into electric signals. By refracting the beams refracted from the disc at a proper refractive index, the ±1st-order beams can be projected onto the same position, irrespective of the wavelengths.
摘要翻译：一种用于检测从光盘反射的光束的光学拾取装置中的光检测器，并且包括用于传输一个主光束的基板和从光盘反射的两个子光束; 用于根据从激光二极管输出的激光束的波长以不同的折射率折射通过基板的两个子光束的液晶; 用于向液晶供电的电极材料; 用于调节施加到电极材料的电压的大小的开关; 并且在将基板和液晶传送的同时投射主光束和折射子光束的光电二极管，并变换为电信号。通过以适当的折射率折射从光盘折射的光束，不管波长如何，可以将±1 秩光束投影到相同的位置。

8. 发明申请

US20060274631A1 Optical recording/reproducing apparatus 有权
标题翻译：光记录/重放装置
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。

9. 发明申请

US20060181977A1 Optical pickup which is compatible with multiple types of media 有权
标题翻译：与多种介质兼容的光学拾音器
公开(公告)号：US20060181977A1
公开(公告)日：2006-08-17
申请号：US11272799
申请日：2005-11-15
申请人： Tae-Youn Heor
发明人： Tae-Youn Heor
IPC分类号： G11B7/00
CPC分类号： G11B7/1275 , G11B7/123 , G11B7/1356 , G11B2007/0006
摘要： A compatible optical pickup can be used with advanced optical discs (AODs), blu-ray discs (BDs), digital versatile discs (DVDs), and compact discs (CDs). The compatible optical pickup comprises a first light source unit for independently projecting first and second short-wavelength laser beams which have different polarizations, a second light source unit for independently projecting first and second long-wavelength laser beams which have different wavelength-range, a first objective lens that has a high numerical aperture suitable for a high density optical information recording medium, a second objective lens that has a low numerical aperture suitable for a low density optical information recording medium, and a light path changing unit for guiding the first short-wavelength laser beams to the first objective lens and guiding the second short-wavelength laser beams, the first long-wavelength laser beams, and the second long-wavelength laser beams to the second objective lens. The first short laser beams of, for example, P-polarized light are for use with a BD, the second short-wavelength laser beams of, for example, S-polarized light, are for use with an AOD, the first long-wavelength laser beams are for use with a DVD, and the second long-wavelength laser beams are for use with a CD.
摘要翻译：兼容的光学拾取器可用于高级光盘（AOD），蓝光光盘（BD），数字通用光盘（DVD）和光盘（CD）。兼容光学拾取器包括用于独立地投影具有不同偏振的第一和第二短波长激光束的第一光源单元，用于独立地投影具有不同波长范围的第一和第二长波长激光束的第二光源单元，具有适用于高密度光学信息记录介质的高数值孔径的第一物镜，具有适用于低密度光学信息记录介质的低数值孔径的第二物镜，以及用于引导第一短路的光路改变单元 - 将第一长波长激光束和第二长波长激光束引导到第二物镜，并将第二短波长激光束和第二长波长激光束引导到第二物镜。例如，P偏振光的第一短激光束用于BD，例如S偏振光的第二短波长激光束用于AOD，第一长波长激光束用于DVD，第二长波长激光束用于CD。

10. 发明授权

US07092325B2 Method of arranging optical pickup system and optical recording and/or reproducing apparatus having the arranged optical pickup system 有权
标题翻译：具有配置光拾取系统的光学拾取系统和光学记录和/或再现装置的布置方法
公开(公告)号：US07092325B2
公开(公告)日：2006-08-15
申请号：US10460655
申请日：2003-06-13
申请人： Bong-gi Kim , Chun-seong Park , Soo-han Park , Moon-whan Lee , Hyo-chan Lee , Jong-uk Kim , Seong-su Park , Tae-youn Heor , Do-hoan Nam
发明人： Bong-gi Kim , Chun-seong Park , Soo-han Park , Moon-whan Lee , Hyo-chan Lee , Jong-uk Kim , Seong-su Park , Tae-youn Heor , Do-hoan Nam
IPC分类号： G11B7/00
CPC分类号： G11B7/131 , G11B7/0903 , G11B7/0906 , G11B2007/0006
摘要： A method of arranging an optical pickup system on a deck of an optical recording and/or reproducing apparatus, which enables detection of a tracking error signal using one photodetector based on a three-beam method and by a differential phase detection method. The optical pickup system includes a light source, a diffractive optical element which diffracts a light beam incident from the light source and splits the same into at least three beams, a plate-type beam splitter which changes a propagation path of the light beam, and a photodetector including at least one main photodetector having at least four sections and a plurality of sub-photodetectors. The optical pickup system is constructed so as to have a reflecting mirror redirect the propagation path of the light beam emitted from the light source toward a recording medium. The method of arranging the optical pickup includes, where the propagation path of the light beam transmitted through the plate-type beam splitter to the photodetector is an optical path axis, arranging the optical pickup system so as to have the optical path axis tilted with respect to an axis in a tangential direction of the recording medium and have the photodetector placed away from a rotation center of a motor that rotates the recording medium, and selectively optimizing the arrangement of the photodetector to detect a tracking error signal by the differential phase detection method.
摘要翻译：一种在光学记录和/或再现装置的平台上布置光学拾取系统的方法，其能够使用基于三光束方法的一个光电检测器和通过差分相位检测方法检测跟踪误差信号。光拾取系统包括光源，衍射从光源入射的光束并衍射成至少三个光束的衍射光学元件，改变光束传播路径的板式分束器，以及光电检测器，其包括至少一个具有至少四个部分的主光电检测器和多个子光电检测器。光学拾取系统被构造成具有将从光源发射的光束的传播路径重定向到记录介质的反射镜。布置光学拾取器的方法包括：将透过板式分束器的光束的传播路径传播到光电检测器的方法是将光学拾取系统布置成使光学轴线相对于到记录介质的切线方向的轴线上，并且将光电检测器放置成远离旋转记录介质的马达的旋转中心，并且选择性地优化光电检测器的布置以通过差分相位检测方法检测跟踪误差信号。

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