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1. 发明授权

US5909293A Hologram unit of optical pickup and method of attaching hologram plate using the same 失效
标题翻译：光拾取器的全息单元和使用其的全息板附接方法
公开(公告)号：US5909293A
公开(公告)日：1999-06-01
申请号：US772468
申请日：1996-12-23
申请人： Keun Young Yang
发明人： Keun Young Yang
IPC分类号： G11B7/12 , G11B7/08 , G11B7/135 , G11B7/22 , G03H1/00 , G02B5/32
CPC分类号： G11B7/1353 , G11B7/22 , G11B7/12
摘要： Disclosed are a hologram unit of an optical pickup which has a main hologram and auxiliary alignment holograms around the main hologram thereof and a method of attaching a hologram plate of the optical pickup comprising the steps of: illuminating an object with an LD; forming an LD radiant point on a monitor through a microscopic lens, and a plurality of radiant points around the LD radiant point by auxiliary alignment holograms; and aligning the LD with the hologram plate by moving the hologram plate so as to form the LD radiant point in the center of the plurality of radiant points.
摘要翻译：公开了一种光拾取器的全息图单元，其具有围绕其主要全息图的主全息图和辅助对准全息图以及附接光学拾取器的全息图板的方法，包括以下步骤：用LD照射物体; 通过微透镜在监视器上形成LD辐射点，以及通过辅助对准全息图在LD辐射点周围的多个辐射点; 并且通过移动全息图板来使LD与全息图板对齐，以便在多个辐射点的中心形成LD辐射点。

2. 发明授权

US6025953A Annular shutter mirror 失效
标题翻译：环形快门镜
公开(公告)号：US6025953A
公开(公告)日：2000-02-15
申请号：US887221
申请日：1997-07-02
申请人： Jong Uk Bu , Keun Young Yang , Sung Woo Noh
发明人： Jong Uk Bu , Keun Young Yang , Sung Woo Noh
IPC分类号： G11B7/13 , G02B5/10 , G02B26/08 , G11B7/00 , G11B7/135 , G02B5/08
CPC分类号： G11B7/1362 , G02B26/0825 , G11B2007/0006
摘要： An annular shutter mirror which can selectively shut off a part of light beams progressing toward a target in the progressing direction thereof. The annular shutter mirror utilizes a fixed reflection face to reflect an incident light beam at a constant angle in accordance with an incident angle of the incident light beam. Around the periphery of the fixed reflection face, at least one flexible reflection face is formed in a shape of annular band. This at least one flexible reflection face selectively reflects an incident light beam at an angle different from a reflective angle of the fixed reflection area in accordance with an application condition of an electrical field.
摘要翻译：一种环形快门反射镜，其能够选择性地切断在其前进方向朝向目标物行进的一部分光束。环形快门镜根据入射光束的入射角度利用固定的反射面以一定角度反射入射光束。在固定反射面的周围，至少一个柔性反射面形成为环形带状。该至少一个柔性反射面根据电场的应用条件选择性地以与固定反射区域的反射角不同的角度反射入射光束。

3. 发明授权

US6166835A Holographic memory 有权
标题翻译：全息记忆
公开(公告)号：US6166835A
公开(公告)日：2000-12-26
申请号：US320536
申请日：1999-05-27
申请人： Keun-Young Yang
发明人： Keun-Young Yang
IPC分类号： G03H1/00 , G11B7/0065 , G11B7/085 , G11B7/125 , G11B7/135 , G11C13/04 , G03H1/26 , G02B5/32 , G03H1/10 , G03H1/30
CPC分类号： G11B7/128 , G11B7/0065 , G11B7/08564 , G11B7/1353 , G11C13/042
摘要： Holographic memory including a beam source for emitting a beam, a beam splitter for splitting the beam into a reference beam and an object beam, a hologram memory unit for recording information designated to a cell when the reference beam and the object beam are incident thereto at a time, and reproducing the information recorded before when only the reference beam is incident thereto, a first optical path changing unit for directing the reference beam to be incident to the hologram memory unit at an arbitrary angle for recording and reproduction of the information, including a first deflector for deflecting the reference beam to an arbitrary angle, a second deflector for re-deflecting the reference beam deflected at the first deflector in a vertical direction, and a telescope having at least one composite HOE(Holographic Optical Element) for directing the reference beam re-deflected at the second deflector to be incident to the hologram memory unit, and a second optical path changing unit for adjusting an optical path of the object beam to be incident to the hologram memory unit for recording the information, whereby increasing a recording capacity and improving productivity and cost.
摘要翻译：包括用于发射光束的光束源的全息存储器，用于将光束分成参考光束的光束分离器和物体光束;全息图存储器单元，用于当参考光束和物体光束入射到其上时，记录指定给单元的信息一次，并且再现只有参考光束入射时记录的信息;第一光路改变单元，用于将参考光束以任意角度入射到全息图存储单元，用于记录和再现信息，包括用于将参考光束偏转到任意角度的第一偏转器，用于在垂直方向上重新偏转在第一偏转器处偏转的参考光束的第二偏转器，以及具有至少一个复合HOE（全息光学元件）的望远镜，用于引导参考光束在第二偏转器处被重新偏转以入射到全息图存储单元，以及第二光路改变单元，用于调整要入射到全息图存储单元的物体光束的光路以记录信息，从而增加记录容量并提高生产率和成本。

4. 发明授权

US6043911A Optical source module with two wavelengths and optical pickup apparatus using the same 失效
标题翻译：具有两个波长的光源模块和使用其的光学拾取装置
公开(公告)号：US6043911A
公开(公告)日：2000-03-28
申请号：US52944
申请日：1998-04-01
申请人： Keun Young Yang
发明人： Keun Young Yang
IPC分类号： G11B7/08 , G02B5/32 , G11B7/00 , G11B7/125 , G11B7/135 , G03H1/00 , G03H1/02
CPC分类号： G11B7/1353 , G02B5/32 , G11B7/127 , G11B7/1356 , G11B7/1372 , G11B7/1392 , G11B2007/0006
摘要： A light source module with two wavelengths that is adapted to generate laser beams different in wavelength. In the light source module, a hologram optical element (HOE) is used to allow a first laser beam generated at a first light source and a second laser beam generated at a second light source to progress along same path. The HOE diffracts the second laser beam to change a progressive path of the second laser beam into that of the first laser beam. The first light source generates the first laser beam having a different wavelength from the second laser beam generated at the second light source.
摘要翻译：具有两个波长的光源模块，其适于产生不同波长的激光束。在光源模块中，使用全息光学元件（HOE）来允许在第一光源处产生的第一激光束和在第二光源处产生的第二激光束沿着相同的路径前进。 HOE衍射第二激光束以将第二激光束的渐进路径改变为第一激光束的渐进路径。第一光源产生与在第二光源处产生的第二激光束具有不同波长的第一激光束。

5. 发明授权

US5644563A Optical pickup system 失效
标题翻译：光学拾取系统
公开(公告)号：US5644563A
公开(公告)日：1997-07-01
申请号：US478751
申请日：1995-06-07
申请人： Keun Young Yang
发明人： Keun Young Yang
IPC分类号： G11B11/10 , G11B7/085 , G11B7/09 , G11B7/12 , G11B7/13 , G11B7/135 , G11B11/105
CPC分类号： G11B7/131 , G11B11/10545 , G11B7/0912
摘要： An optical pickup system capable of recording/reading out information on/from a mini disc or magneto-optical disc includes a polarized beam splitter (PBS) for fully reflecting beams of S-wave component from a laser diode or reflected from the disc while partially reflecting and partially transmitting beams of P-wave component, a reflection mirror placed between the PBS and disc for reflecting the beams transmitted through the PBS toward the disc while reflecting the beams reflected from the disc toward the PBS, a first photodetector having plural split areas for detecting a focus error and a tracking error according to the beams focusing on respective split areas, a hologram element for allowing three beams from a grating to be incident to the PBS or diffracting the beams of P-wave component transmitted through the PBS to focus the diffracted beams on the first photodetector, a second photodetector having six split areas for detecting the information recorded on the disc according to the beams focusing on respective split areas thereof, and a Wollaston prism placed between the PBS and second photodetector for separating mixed beams of P-wave and S-wave components from the PBS to allow the separated beams to be incident to the second photodetector, thereby decreasing the number of optical elements to improve readout speed of the information on the disc and simplifying the structure of the optical pickup system to reduce manufacturing cost.
摘要翻译：能够在迷你盘或磁光盘上记录/读出信息的光学拾取系统包括：偏振分束器（PBS），用于从激光二极管或从盘反射的S波成分的光束全部反射，同时部分反射和部分透射P波分量的波束，设置在PBS和光盘之间的反射镜，用于将从PBS反射的光束朝向盘反射向PBS传输的光束，第一光电检测器具有多个分割区域用于根据聚焦于相应分割区域的光束来检测聚焦误差和跟踪误差，用于允许来自光栅的三个光束入射到PBS或衍射透过PBS的P波分量束聚焦的全息元件第一光电检测器上的衍射光束，具有六个分离区域的第二光电检测器，用于检测根据t记录在盘上的信息他聚焦于其各自的分割区域，以及放置在PBS和第二光电检测器之间的沃拉斯顿棱镜，用于从PBS中分离出混合的P波和S波分量，以允许分离的光束入射到第二光电检测器，从而减少光学元件的数量以提高光盘上的信息的读出速度并且简化光学拾取系统的结构以降低制造成本。

6. 发明授权

US5504724A Optical pick-up system with servo using reflection plate having aperture 失效
标题翻译：具有伺服的光学拾取系统使用具有孔径的反射板
公开(公告)号：US5504724A
公开(公告)日：1996-04-02
申请号：US70758
申请日：1993-06-03
申请人： Keun Young Yang
发明人： Keun Young Yang
IPC分类号： G11B7/00 , G11B7/005 , G11B7/09 , G11B7/095 , G11B7/13 , G11B7/135
CPC分类号： G11B7/133 , G11B7/0901 , G11B7/0912 , G11B7/0946 , G11B7/0956 , G11B7/1359 , G11B7/1362 , G11B7/1381
摘要： Optical pick-up system and method for accurately reading information recorded on an optical disc. The invention makes it possible to determine the kind of an error occurring upon reading information recorded on an optical disc by light beams from a light source, by using error detectors, and to correct accurately the error by driving a focusing lens, thereby capable of rapidly correcting errors such as tracking/focusing errors, providing a light and compact construction and improving a reliance, so as to solve problems of a high sensitivity to variations, a poor assembling ability, a bulky construction and a degraded reliance, encountered in optical devices which have been generally used for reading information recorded on optical discs.
摘要翻译：用于准确地读取记录在光盘上的信息的光学拾取系统和方法。本发明使得可以通过使用误差检测器来确定从光源读取记录在光盘上的信息时发生的错误的种类，并通过驱动聚焦透镜来准确地校正误差，由此能够快速地校正错误，例如跟踪/聚焦误差，提供轻巧紧凑的结构和改善依赖性，以解决在光学装置中遇到的对变化的高灵敏度，组装能力差，结构笨重和依赖性降低的问题通常用于读取记录在光盘上的信息。

7. 发明授权

US06038204A Optical source module for generating beams with different wavelengths 失效
标题翻译：用于生成不同波长的光束的光源模块
公开(公告)号：US06038204A
公开(公告)日：2000-03-14
申请号：US907886
申请日：1997-08-11
申请人： Keun Young Yang , Jong Uk Bu
发明人： Keun Young Yang , Jong Uk Bu
IPC分类号： G11B7/125 , G11B7/00 , G11B7/09 , G11B7/12 , G11B7/135 , G11B7/22
CPC分类号： G11B7/1362 , G11B7/123 , G11B7/127 , G11B7/22 , G11B2007/0006
摘要： A different wavelength type of optical source module which generates light beams different in wavelength. In the optical source module, laser diodes are provided to be opposed to each of reflective films which is arranged to make a shape of a mountain. These respective laser diodes generates laser light beams different in wavelength. The light beams generated at the laser diodes are reflected by the reflective films at a right angle to progress along the same path.
摘要翻译：产生波长不同的光束的不同波长类型的光源模块。在光源模块中，激光二极管设置成与设置成形成山形的反射膜相对。这些各自的激光二极管产生波长不同的激光束。在激光二极管处产生的光束被反射膜以直角反射，沿着相同的路径进行。

8. 发明授权

US06293898B1 Holographic memory 有权
标题翻译：全息记忆
公开(公告)号：US06293898B1
公开(公告)日：2001-09-25
申请号：US09382692
申请日：1999-08-25
申请人： Keun Young Yang
发明人： Keun Young Yang
IPC分类号： G03H126
CPC分类号： G11B7/1353 , G02B5/32 , G11B7/0065 , G11B7/08564 , G11C13/042
摘要： Holographic memory including a plurality of HOEs stacked in a vertical direction for two dimensional addressing of a recording medium for increasing a recording capacity and improving productivity and cost.
摘要翻译：全息存储器包括沿垂直方向堆叠的多个HOE，用于记录介质的二维寻址，用于增加记录容量并提高生产率和成本。

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