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61. 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。

62. 发明申请

US20060239137A1 Optical pickup actuator and optical recording and/or reproducing apparatus 失效
公开(公告)号：US20060239137A1
公开(公告)日：2006-10-26
申请号：US11315195
申请日：2005-12-23
申请人： Seok-jung Kim , Hyung-hoon Kang , Jung-gug Pae , Young-man Ahn , Soo-han Park
发明人： Seok-jung Kim , Hyung-hoon Kang , Jung-gug Pae , Young-man Ahn , Soo-han Park
IPC分类号： G11B7/00
CPC分类号： G11B7/0956 , G11B7/093 , G11B7/0933 , G11B7/0935
摘要： An optical pickup actuator, including a lens holder movably installed on a base, and mounted with an objective lens to transmit an incident light to an optical information recording medium, and a magnetic circuit to independently drive the lens holder in a focusing direction, a tilting direction and a tracking direction, respectively.

63. 发明申请

US20060233067A1 Optical pickup actuator and optical recording and/or reproducing apparatus having the same 失效
标题翻译：光拾取器致动器及具有该拾取器执行器的光学记录和/或再现装置
公开(公告)号：US20060233067A1
公开(公告)日：2006-10-19
申请号：US11402990
申请日：2006-04-13
申请人： Seok-jung Kim , Moon-whan Lee , Do-hoan Nam , Jung-gug Pae , Soo-han Park
发明人： Seok-jung Kim , Moon-whan Lee , Do-hoan Nam , Jung-gug Pae , Soo-han Park
IPC分类号： G11B7/00
CPC分类号： G11B7/0933 , G11B7/0935 , G11B7/0956 , G11B2007/0006
摘要： An optical pickup actuator independently drivable in focusing, tilting and tracking directions. The optical pickup includes a lens holder movably installed on a base, and mounted with an objective lens for transmitting an incident light to an optical information recording medium; and a magnetic circuit to independently driving the lens holder in the focusing, tilting and tracking directions. The magnetic circuit includes opposing magnets; a focusing coil and tilting coils interposed between the magnets, mounted inside the lens holder, and wound around respective axes parallel to the focusing direction; and a plurality of tracking coils mounted outside the lens holder, interposed between the magnets and wound around respective axes transverse to the focusing direction. The magnetic fields of the magnets are guided by outer yokes partially encompassing the magnets and inner yokes positioned within the focusing coil and the tilting coils.
摘要翻译：光学拾音器执行器可以在聚焦，倾斜和跟踪方向上独立驱动。光学拾取器包括可移动地安装在基座上的透镜保持器，并且安装有用于将入射光传输到光学信息记录介质的物镜; 以及用于在聚焦，倾斜和跟踪方向独立地驱动透镜架的磁路。磁路包括相对的磁体; 聚焦线圈和夹在所述磁体之间的倾斜线圈，安装在所述透镜保持器内部，并围绕平行于所述聚焦方向的相应轴线缠绕; 以及多个跟踪线圈，其安装在透镜保持器的外部，插入在磁体之间并围绕横向于聚焦方向的各个轴线缠绕。磁体的磁场由位于聚焦线圈和倾斜线圈内部的磁体和内轭铁的部分包围的外轭引导。

64. 发明申请

US20060176790A1 Optical disk writing and reading apparatus, and method thereof 审中-公开
标题翻译：光盘写入读取装置及其方法
公开(公告)号：US20060176790A1
公开(公告)日：2006-08-10
申请号：US11348339
申请日：2006-02-07
申请人： Jang-hoon Yoo , Soo-han Park , Chun-seong Park , Tae-hoon Lee
发明人： Jang-hoon Yoo , Soo-han Park , Chun-seong Park , Tae-hoon Lee
IPC分类号： G11B5/09 , G11B7/00
CPC分类号： G11B7/1369 , G11B7/0948 , G11B7/1267 , G11B7/1376 , G11B7/13927 , G11B2007/0013
摘要： An optical disk writing and reading apparatus and a method thereof is provided. The optical disk writing and reading apparatus has an optical pick-up for writing or reading data on an optical disk by using a laser light of a certain wavelength, an optical power calculation part for calculating an optical power of the laser light generated from the optical pick-up, and a micom operating the optical power calculation part by every certain time to detect the optical power of the laser light and adjusting the optical power of the laser light based on a preset optimum optical power to be optimized while writing the data on the optical disk.
摘要翻译：提供了一种光盘写入读取装置及其方法。光盘写入读取装置具有通过使用一定波长的激光在光盘上写入或读取数据的光学拾取器，用于计算从光学产生的激光的光学功率的光学功率计算部拾取器和微型计算机，每隔一定时间操作光功率计算部件，以检测激光的光功率，并且基于在将数据写入时优化的预设最佳光功率来调整激光的光功率光盘。

65. 发明申请

US20060164953A1 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：US20060164953A1
公开(公告)日：2006-07-27
申请号：US11329069
申请日：2006-01-11
申请人： Bong-Gi Kim , Soo-Han Park , Jang-Hoon Yoo , Hag-Hyeon Jang , Ho-Sik You
发明人： Bong-Gi Kim , Soo-Han Park , Jang-Hoon Yoo , Hag-Hyeon Jang , Ho-Sik You
IPC分类号： G11B7/00
CPC分类号： G11B7/1275 , G11B7/1353 , G11B7/1376 , G11B7/13922 , G11B7/13925 , G11B2007/0006
摘要： An optical pickup which is compatible with different types of media is disclosed. A plurality of light sources emit light with different wavelengths. Light path changers change the path of light emitted by the plurality of light sources so that the light is incident upon an objective lens. The objective lens focuses the incident light onto a recording medium. A collimating lens is disposed in front of the objective lens to collimate the incident lights. The collimating lens is movable to correct a spherical aberration. A diffractive optical element is disposed in a path of a light with a short wavelength and has a diffractive surface to correct a chromatic aberration.
摘要翻译：公开了与不同类型的介质兼容的光学拾取器。多个光源发射具有不同波长的光。光路改变器改变由多个光源发射的光的路径，使得光入射到物镜上。物镜将入射光聚焦到记录介质上。准直透镜设置在物镜前面以准直入射光。准直透镜可移动以校正球面像差。衍射光学元件设置在具有短波长的光的路径中并且具有衍射面以校正色差。

66. 发明申请

US20060120248A1 Diffraction element and optical pick-up apparatus having the same 失效
$Diffraction element and optical pick-up apparatus having the same$
公开(公告)号：US20060120248A1
公开(公告)日：2006-06-08
申请号：US11337584
申请日：2006-01-24
申请人： Bong-gi Kim , Soo-han Park , Jang-hoon Yoo
发明人： Bong-gi Kim , Soo-han Park , Jang-hoon Yoo
IPC分类号： G11B7/135
CPC分类号： G11B7/1353 , G11B7/0903 , G11B7/0909 , G11B7/1381
摘要： A diffraction element for an optical pick-up apparatus is provided that enables more accurate focusing control. The diffraction element for an optical pick-up apparatus is divided into first and second regions, each being formed with a grid pattern in which grids are repeated with a predetermined pitch P. The grid pattern in at least one of the first and second regions is tilted by a predetermined angle with respect to a virtual line VL substantially perpendicular to a division line DL that divides the first and second regions.

67. 发明授权

US6023450A Multiple beam optical pickup using a vertical cavity surface emitting laser array 失效
标题翻译：使用垂直腔表面发射激光器阵列的多光束光学拾取器
公开(公告)号：US6023450A
公开(公告)日：2000-02-08
申请号：US960059
申请日：1997-10-29
申请人： Soo-han Park , Jong-hwa Won , Chun-seong Park
发明人： Soo-han Park , Jong-hwa Won , Chun-seong Park
IPC分类号： G11B7/08 , G11B7/00 , G11B7/125 , G11B7/13 , G11B7/135 , G11B7/14 , G11B19/12 , H01L31/12 , H01S5/022 , H01S5/183
CPC分类号： G11B7/1365 , G11B19/12 , G11B7/127 , G11B7/131 , G11B7/1369 , G11B7/139 , G11B7/14 , G11B2007/0006 , H01S5/005 , H01S5/423
摘要： An optical pickup capable of multiple track scanning, including a light source having at least two vertical cavity surface emitting lasers (VCSELs) to emit at least two or more light beams and a light controlling device for controlling the focal position of a light formed on one type of recording medium of two formats of different thicknesses, is provided. The light emitted from each VCSEL is focused on adjacent tracks of the recording medium via a polarization beam splitter, the light controlling device and an objective lens in sequence, and the light reflected from the recording medium is received by a photodetector via the objective lens, the light controlling device and the polarization beam splitter. The number of photodetectors correspond to the number of VCSELs to receive lights corresponding to each track.
摘要翻译：一种能够进行多轨扫描的光学拾取器，包括具有发射至少两个或更多个光束的至少两个垂直腔表面发射激光器（VCSEL）的光源和用于控制形成在一个光束上的光的焦点位置的光控制装置提供了不同厚度的两种格式的记录介质的类型。从每个VCSEL发射的光经由偏振分束器，光控制装置和物镜依次聚焦在记录介质的相邻轨道上，并且从记录介质反射的光被光检测器经由物镜接收，光控制装置和偏振分束器。光电检测器的数量对应于用于接收对应于每个轨道的光的VCSEL的数量。

68. 发明授权

US5986998A Optical head having two vertical cavity surface emitting lasers with different wavelengths 失效
标题翻译：具有两个具有不同波长的垂直腔面发射激光器的光头
公开(公告)号：US5986998A
公开(公告)日：1999-11-16
申请号：US956532
申请日：1997-10-23
申请人： Soo-han Park
发明人： Soo-han Park
IPC分类号： G11B7/135 , G11B7/00 , G11B7/125 , G11B7/13 , H01S5/40 , H01S5/42 , H01S3/19
CPC分类号： G11B7/127 , H01S5/423 , G11B2007/0006 , H01S5/4087
摘要： An optical pickup which can be employed for different formats of a disk recording medium is disclosed. The optical pickup device includes a light source including first and second vertical cavity surface emitting lasers closely disposed to each other for emitting light having different wavelengths and different radiation angles, an objective lens for focusing the light emitted from the light source on a recording surface of a recording medium, a photodetector for detecting information signals and error signals by receiving the light reflected from the recording medium, a polarized beam splitter disposed on an optical path between the light source and the objective lens to redirect a proceeding path of incident light, and a wavelength plate disposed on the optical path between the objective lens and the polarized beam splitter to convert a polarization component of incident light.
摘要翻译：公开了可用于不同格式的盘记录介质的光拾取器。光拾取装置包括：光源，包括彼此紧密配置的第一和第二垂直腔表面发射激光器，用于发射具有不同波长和不同辐射角的光;物镜，用于将从光源发射的光聚焦在记录介质，用于通过接收从记录介质反射的光来检测信息信号和误差信号的光电检测器，设置在光源和物镜之间的光路上的偏振分束器，以重定向入射光的行进路径，以及设置在物镜和偏振分束器之间的光路上的波长板，以转换入射光的偏振分量。

69. 发明授权

US5717666A Apparatus for aligning optical axis of optical pick-up 失效
标题翻译：用于对准光学拾取器的光轴的装置
公开(公告)号：US5717666A
公开(公告)日：1998-02-10
申请号：US628937
申请日：1996-04-08
申请人： Soo-Han Park
发明人： Soo-Han Park
IPC分类号： G11B7/08 , G11B7/095 , G11B7/22
CPC分类号： G11B7/22 , G11B7/0956
摘要： An optical axis alignment apparatus of an optical pick-up device for measuring and adjusting a shift amount between a central axis of an objective lens and an optical axis of a laser beam emitted from a light source includes a first photodetector positioned to reciprocate along a central axis of the objective lens, for detecting a shift amount of an optical axis of the laser beam with respect to the central axis of the objective lens and for generating a first detection signal; a second photodetector for detecting a distribution of the laser beam emitted from the laser source and for generating a second detection signal; a beam splitter for splitting the laser beam at a predetermined angle to direct the laser beam to said first and said second photodetectors, respectively; a driving mechanism for reciprocating the first photodetector along the central axis of the objective lens; and mechanism for adjusting the position and the angle of the laser source in dependence upon reception of the first and second detection signals.
摘要翻译：用于测量和调节从光源发射的激光束的物镜的中心轴和光轴之间的偏移量的光学拾取装置的光轴对准装置包括：第一光电检测器，其定位成沿着中心用于检测激光束的光轴相对于物镜的中心轴的偏移量并产生第一检测信号; 第二光电检测器，用于检测从激光源发射的激光束的分布并产生第二检测信号; 分束器，用于将激光束以预定角度分离，以将激光束分别引导到所述第一和所述第二光电检测器; 用于使第一光电检测器沿着物镜的中心轴线往复运动的驱动机构; 以及用于根据第一和第二检测信号的接收来调整激光源的位置和角度的机构。

70. 发明申请

US20110063968A1 OPTICAL PICKUP APPARATUS HAVING MULTI-SECTIONAL POLARIZER 有权
标题翻译：具有多分辨偏振器的光学拾取装置
公开(公告)号：US20110063968A1
公开(公告)日：2011-03-17
申请号：US12761495
申请日：2010-04-16
申请人： Seong-su PARK , Soo-han Park , Bong-gi Kim , Ichiro Morishita , Myoung-seok Kim , Jung-woo Hong
发明人： Seong-su PARK , Soo-han Park , Bong-gi Kim , Ichiro Morishita , Myoung-seok Kim , Jung-woo Hong
IPC分类号： G11B7/135
CPC分类号： G11B7/1398 , G11B7/1275 , G11B7/1367 , G11B2007/0006
摘要： An optical pickup apparatus includes a light generating unit to generate a light to record or reproduce information, an objective lens to focus the light generated from the light generating unit onto a disk, and a multi-sectional polarizer disposed on a light path between the light generating unit and the objective lens and divided into a plurality of sectors having their individual optical axes.
摘要翻译：一种光拾取装置，包括产生光以记录或再现信息的光产生单元，将从光产生单元产生的光聚焦到盘上的物镜，以及设置在光之间的光路上的多截面偏振片生成单元和物镜，并分成具有各自的光轴的多个扇区。

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