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1. 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。

2. 发明授权

US06466529B1 Optical pickup assembly and method of detecting tilt 失效
标题翻译：光拾取组件和倾斜检测方法
公开(公告)号：US06466529B1
公开(公告)日：2002-10-15
申请号：US09680463
申请日：2000-10-06
申请人： Seok-jung Kim , Yong-hoon Lee , Tae-kyung Kim , Jang-hoon Yoo
发明人： Seok-jung Kim , Yong-hoon Lee , Tae-kyung Kim , Jang-hoon Yoo
IPC分类号： G11B700
CPC分类号： G11B7/0935 , G11B7/0933 , G11B7/0956
摘要： An optical pickup assembly having an elastically supported tilt mechanism. The optical pickup assembly includes a bobbin at which an objective lens is mounted and an elastic support member which supports the bobbin in elastic motion with respect to a holder installed at a base. A focus coil and a tracking coil are installed at the bobbin and form a conducting path for driving the objective lens in a focusing direction and a tracking direction. Tilt coils are installed at one side of the bobbin and form a conductive path for driving tilt of the objective lens. A first magnet and a first yoke generate an electromagnetic force to driving the objective lens together with the current carrying focus coil and tracking coil. A second magnet and a second yoke generate an electromagnetic force to driving the objective lens together with the current carrying tilt coils. A position detecting sensor measures relative inclination of the objective lens with respect to a disk, and a balance member coupled to the bobbin to balance the weight of the tilt coils by applying weight corresponding to the weight of the tilt coils at positions symmetrically opposite to the positions of the tilt coils.
摘要翻译：一种具有弹性支撑的倾斜机构的光学拾取器组件。光拾取器组件包括安装物镜的筒管和相对于安装在基座上的保持器弹性运动地支撑筒管的弹性支撑构件。聚焦线圈和跟踪线圈安装在线轴上并形成用于沿聚焦方向和跟踪方向驱动物镜的导电路径。倾斜线圈安装在线轴的一侧，形成用于驱动物镜倾斜的导电路径。第一磁体和第一磁轭一起产生电磁力以与载流聚焦线圈和跟踪线圈一起驱动物镜。第二磁体和第二磁轭产生电磁力以与载流倾斜线圈一起驱动物镜。位置检测传感器测量物镜相对于盘的相对倾斜度，以及平衡构件，其耦合到筒管，以通过将对应于倾斜线圈的重量的重量施加在倾斜线圈的重量上来平衡倾斜线圈的重量，倾斜线圈的位置。

3. 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。

4. 发明申请

US20050018560A1 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：US20050018560A1
公开(公告)日：2005-01-27
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 , G11B7/125 , G11B7/135
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。

5. 发明申请

US20070053274A1 Compatible optical pickup and optical recording and/or reproducing apparatus employing the same 审中-公开
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：US20070053274A1
公开(公告)日：2007-03-08
申请号：US11514253
申请日：2006-09-01
申请人： Jang-hoon Yoo , Soo-han Park , Young-man Ahn , Tae-kyung Kim , Yong-han Yoon , Young-sun Jeon
发明人： Jang-hoon Yoo , Soo-han Park , Young-man Ahn , Tae-kyung Kim , Yong-han Yoon , Young-sun Jeon
IPC分类号： G11B7/135
CPC分类号： G11B7/1369 , G11B7/1353 , G11B7/1365 , G11B7/139 , G11B2007/0006
摘要： An optical pickup and an optical recording and/or reproducing apparatus include a light source which emits light having a first wavelength, an objective lens that focuses incident light on an information storage medium and is optimized for a first information storage medium of a predetermined standard, a polarization changer which changes the light with the first wavelength incident from the light source into light beams with first and second polarizations that are orthogonal to each other, a polarization hologram element which has a varying refractive power according to the polarization of the light with the first wavelength that passes through the polarization changer, a photodetector which receives light after the light has been emitted from the light source, focused on the information storage medium by the objective lens, and reflected by the information storage medium, and an optical path changer which guides the light reflected by the information storage medium toward the photodetector, wherein the optical pickup can compatibly adopt the first information storage medium and a second information storage medium which has a different thickness from the first information storage medium.
摘要翻译：光学拾取器和光学记录和/或再现装置包括发射具有第一波长的光的光源，将入射光聚焦在信息存储介质上并针对预定标准的第一信息存储介质进行了优化的物镜，将从光源入射的第一波长的光改变为具有彼此正交的第一和第二偏振光束的偏振光改变器，根据光的偏振具有变化的屈光力的偏振全息元件通过偏振光变换器的第一波长，从光源发光后接收光的光电检测器，由物镜聚焦在信息存储介质上，并由信息存储介质反射;以及光路改变器，将由信息存储介质反射的光引向光电二极管检测器，其中所述光学拾取器可兼容地采用所述第一信息存储介质和与所述第一信息存储介质具有不同厚度的第二信息存储介质。

6. 发明申请

US20050147000A1 Actuator for optical pickup, optical pickup, and optical recording/reproducing apparatus employing the same 审中-公开
标题翻译：用于光学拾取器，光学拾取器以及采用该光学拾取器的光学记录/再现装置的致动器
公开(公告)号：US20050147000A1
公开(公告)日：2005-07-07
申请号：US10998172
申请日：2004-11-29
申请人： Seok-jung Kim , Young-man Ahn , Kwang Kim , Tae-kyung Kim , Jung-gug Pae , Tae-youn Heor , Chong-sam Chung
发明人： Seok-jung Kim , Young-man Ahn , Kwang Kim , Tae-kyung Kim , Jung-gug Pae , Tae-youn Heor , Chong-sam Chung
IPC分类号： G11B7/085 , G11B7/00 , G11B7/09 , G11B21/02
CPC分类号： G11B7/0932 , G11B7/0933 , G11B7/0935
摘要： An optical pickup actuator having: a moving part on which an objective lens to focus an incident beam onto an optical recording medium is mounted, a magnetic driver that drives the moving part in track and focus directions of the optical recording medium, and a support element that movably supports the moving part and has a first support portion with a first predetermined stiffness and a second support portion with a second predetermined stiffness different from the first predetermined stiffness. A center of gravity of the moving part, a center of support of the support element, and a center of a force determined by arrangement of the magnetic driver are coincident.
摘要翻译：一种光拾取器致动器，具有：安装用于将入射光束聚焦到光记录介质上的物镜的移动部件，驱动光记录介质的轨道和聚焦方向上的移动部分的磁驱动器，以及支撑元件其可移动地支撑所述移动部件并且具有第一预定刚度的第一支撑部分和具有与所述第一预定刚度不同的第二预定刚度的第二支撑部分。移动部件的重心，支撑元件的支撑中心和由磁驱动器的布置确定的力的中心一致。

7. 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。

8. 发明授权

US07372794B2 Compatible optical pickup applying tilt to objective lens in proportion to radial movement of objective lens 失效
标题翻译：与物镜的径向移动成比例的兼容的光学拾取器对物镜施加倾斜
公开(公告)号：US07372794B2
公开(公告)日：2008-05-13
申请号：US10454838
申请日：2003-06-05
申请人： Tae-kyung Kim , Chong-sam Chung , Young-man Ahn , Byung-in Ma , Jong-bae Kim , Seok-jung Kim
发明人： Tae-kyung Kim , Chong-sam Chung , Young-man Ahn , Byung-in Ma , Jong-bae Kim , Seok-jung Kim
IPC分类号： G11B7/09
CPC分类号： G11B7/131 , G11B7/09 , G11B7/0901 , G11B2007/0006
摘要： A compatible optical pickup compatibly using a high density recording medium and at least one low density recording medium, includes an objective lens to form a light spot suitable for use on a recording surface of the high density recording medium by focusing a corresponding incident light beam with a high NA suitable for the high density recording medium and a light spot suitable for use on another recording surface of the low density recording medium by focusing another corresponding incident light beam, and an actuator provided to apply tilt to the objective lens. The light beam for the low density recording medium is incident on the objective lens as a divergent beam. When the objective lens is shifted in a radial direction, a tilt is applied to the objective lens corresponding to the shift.
摘要翻译：兼容地使用高密度记录介质和至少一种低密度记录介质的兼容光学拾取器包括：物镜，用于通过将相应的入射光束聚焦在该高分辨率记录介质的记录表面上形成适于使用的光点适合于高密度记录介质的高NA和通过聚焦另一相应的入射光束适用于低密度记录介质的另一个记录表面上的光点，以及设置成向物镜施加倾斜的致动器。用于低密度记录介质的光束作为发散光束入射在物镜上。当物镜沿径向移动时，对应于偏移的物镜施加倾斜。

9. 发明授权

US07345981B2 Optical pickup 有权
标题翻译：光学拾音
公开(公告)号：US07345981B2
公开(公告)日：2008-03-18
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： G11B7/00
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。

10. 发明申请

US20060002247A1 Optical pickup and optical recording and/or reproducing apparatus adopting the same 审中-公开
标题翻译：采用该拾取器和光学记录和/或再现装置的光拾取器和/或再现装置
公开(公告)号：US20060002247A1
公开(公告)日：2006-01-05
申请号：US11172901
申请日：2005-07-05
申请人： Tae-kyung Kim , Seok-jung Kim , Hee-kyung Kim , Woo-seok Choi
发明人： Tae-kyung Kim , Seok-jung Kim , Hee-kyung Kim , Woo-seok Choi
IPC分类号： G11B7/00
CPC分类号： G11B7/1369 , G11B7/1374 , G11B2007/0006
摘要： An optical pickup and an optical recording and/or reproducing apparatus adopting the same are provided. The optical pickup includes an optical unit, first and second objective lenses, and an optical path switching unit. The optical unit illuminates light onto an information storage medium and receives light reflected from the information storage medium to detect an information signal and/or an error signal. The first and the second objective lenses focus incident light to form a light spot on an information storage surface of the information storage medium. The optical path switching unit selectively directs the light incident from the optical unit to one of the first and second objective lenses. In the optical pickup, since the light quantity directed to a plurality of objective lenses may be maximized, optical efficiency is increased and thus high-speed operation may be attained.
摘要翻译：提供了一种光拾取器和采用该拾取器的光学记录和/或再现装置。光学拾取器包括光学单元，第一和第二物镜以及光路切换单元。光学单元将光照射到信息存储介质上并接收从信息存储介质反射的光以检测信息信号和/或误差信号。第一和第二物镜聚焦入射光以在信息存储介质的信息存储表面上形成光斑。光路切换单元将从光学单元入射的光选择性地引导到第一和第二物镜之一。在光学拾取器中，由于可以使指向多个物镜的光量最大化，所以光学效率提高，因此可以实现高速运转。

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