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1. 发明授权

US06211511B1 Dual-wavelength optical pickup head 有权
标题翻译：双波长光学拾音头
公开(公告)号：US06211511B1
公开(公告)日：2001-04-03
申请号：US09227678
申请日：1999-01-08
申请人： Hsi-Fu Shih , Tzu-Ping Yang , Mark O. Freeman , Jinn-Kang Wang
发明人： Hsi-Fu Shih , Tzu-Ping Yang , Mark O. Freeman , Jinn-Kang Wang
IPC分类号： H10J4014
CPC分类号： G11B7/1353 , G11B7/123 , G11B7/127 , G11B7/131 , G11B7/1356 , G11B7/1372 , G11B7/1381 , G11B7/139 , G11B2007/0006 , H01S5/02216 , H01S5/02292 , H01S5/02296 , H01S5/0683 , H01S5/4087
摘要： A dual-wavelength holographic laser module is provided. The dual-wavelength holographic laser module includes a holographic optical element (HOE), a multiple-element photodetector, and a laser light source that can produce a laser light with a wavelength that has, for example, two desired quantities. The laser light emitted from the laser light source with a desired wavelength can travel through the HOE and an objective lens unit, which is used to focus the laser light onto an optical disk of the DVD system, the CD system, or the CD-R system, depending on which wavelength quantity is chosen. The objective lens unit includes a single lens with a changeable NA quantity or a two-lens system that can be switched to put one lens at a time in the optical path. The optical disk reflects the laser light back to the HOE along the same light path. The reflected laser light is diffracted by the HOE to reach to the multiple-element photodetector. The photodetector receives the reflected laser light to obtain a signal, which is used for focusing and tracking, and further reads the information in the DVD system, the CD system, or the CD-R system. The laser light has a single light path even though the laser light can have two different wavelength quantities.
摘要翻译：提供双波长全息激光模块。双波长全息激光器模块包括全息光学元件（HOE），多元件光电探测器和能产生具有例如两个所需量的波长的激光的激光光源。从激光光源发射的具有所需波长的激光可以穿过HOE和物镜单元，该物镜单元用于将激光聚焦到DVD系统，CD系统或CD-R的光盘上系统，取决于选择的波长数量。物镜单元包括具有可变NA量的单透镜或双透镜系统，该双透镜系统可以在光路中一次将一个透镜切换。光盘将激光沿相同的光路反射回HOE。反射的激光被HOE衍射以到达多元件光电探测器。光电检测器接收反射的激光以获得用于聚焦和跟踪的信号，并进一步读取DVD系统，CD系统或CD-R系统中的信息。即使激光可以具有两个不同的波长数量，激光也具有单个光路。

2. 发明授权

US06377520B2 Robust and versatile focus/tracking method and system for optical pickup heads 失效
标题翻译：强大的多功能聚焦/跟踪方法和系统的光学拾音头
公开(公告)号：US06377520B2
公开(公告)日：2002-04-23
申请号：US09063946
申请日：1998-04-21
申请人： Mark O. Freeman , Jinn-Kang Wang , Hsi-Fu Shih
发明人： Mark O. Freeman , Jinn-Kang Wang , Hsi-Fu Shih
IPC分类号： G11B700
CPC分类号： G11B7/131 , G11B7/0901 , G11B7/0912 , G11B7/0943 , G11B7/127 , G11B7/1353 , G11B7/1356 , G11B7/1365 , G11B7/1384 , G11B2007/0006
摘要： A focus/tracking method and system is provided for use in an optical drive with a possibly multiple-wavelength laser source for control of the focus/tracking of the pickup head of the optical drive. The use of a multiple-wavelength laser source allows the optical drive to read data from various types of optical discs. The focus/tracking method and system combines the use of a differential, dual optical channel method for focusing control of the laser beam used to read data from the optical disc and the use of the single-beam tracking method for tracking control of the same. The focus error signal and the tracking error signal can be obtained from the same set of multi-element photodetectors. The structure of the system can therefore be simplified to include a reduced number of constituent components thus allowing a reduction in manufacturing cost.
摘要翻译：提供了一种用于具有可能的多波长激光源的光学驱动器中的焦点/跟踪方法和系统，用于控制光学驱动器的拾取头的聚焦/跟踪。使用多波长激光源允许光驱从各种类型的光盘读取数据。聚焦/跟踪方法和系统结合了使用差分双光道方法来聚焦用于从光盘读取数据的激光束的控制，以及使用单光束跟踪方法来跟踪其控制。聚焦误差信号和跟踪误差信号可以从同一组多元件光电探测器获得。因此，可以将系统的结构简化为包括减少数量的组成部件，从而允许降低制造成本。

3. 发明授权

US06188132B1 Two-wavelength semiconductor laser diode package for use on the read/write head of an optical drive capable of reading different types of optical discs 失效
标题翻译：双波长半导体激光二极管封装，用于能够读取不同类型光盘的光驱的读/写头
公开(公告)号：US06188132B1
公开(公告)日：2001-02-13
申请号：US09063738
申请日：1998-04-21
申请人： Hsi-Fu Shih , Tzu-Ping Yang , Jinn-Kang Wang , Mark O. Freeman
发明人： Hsi-Fu Shih , Tzu-Ping Yang , Jinn-Kang Wang , Mark O. Freeman
IPC分类号： H01L2334
CPC分类号： H01S5/02252 , H01L27/14618 , H01L27/14625 , H01L2224/48091 , H01L2224/49171 , H01S5/02212 , H01S5/02292 , H01S5/4012 , H01S5/4043 , H01S5/4087 , H01L2924/00014
摘要： A two-wavelength laser diode package is provided, which can be utilized in the read/write head of an optical drive capable of reading data from different types of optical discs, such as CD (compact disc), CD-R (CD Recordable) and DVD (digital versatile disc). The laser diode package includes a pair of laser diodes of two different specifications in wavelength, which are disposed on one or two submounts, either horizontally or vertically oriented with each other. Further, a beam coinciding means, such as a micro dichroic prism, a micro dichroic plate, a micro dichroic beam-splitter, or an external dichroic beam-splitter, is used to make the two respective laser beams from the two laser diodes to propagate on the same propagation axis when in use.
摘要翻译：提供了一种双波长激光二极管封装，其可用于能够从不同类型的光盘读取数据的光驱的读/写头，诸如CD（光盘），CD-R（CD可记录）和DVD（数字通用光盘）。激光二极管封装包括一对波长不同规格的激光二极管，它们设置在一个或两个子安装件上，水平或垂直定向。此外，使用诸如微分色棱镜，微二向色板，微分色光束分离器或外部二向色分光器的光束重合装置来使来自两个激光二极管的两个相应的激光束传播在使用时在相同的传播轴上。

4. 发明申请

US20060028958A1 Alignment apparatus in an optical pickup device 审中-公开
标题翻译：光拾取装置中的对准装置
公开(公告)号：US20060028958A1
公开(公告)日：2006-02-09
申请号：US10911346
申请日：2004-08-03
申请人： Chin-Sung Liu , Jinn-Kang Wang
发明人： Chin-Sung Liu , Jinn-Kang Wang
IPC分类号： G11B7/00
CPC分类号： G11B7/125 , G11B7/22
摘要： An alignment apparatus in an optical pickup device is provided. It comprises a laser diode, a first coupling carrier, an optical assembly, a signal detector, a record medium and a second coupling carrier. The first coupling carrier bears the laser diode while the second coupling carrier bears the optical assembly and the signal detector. The first coupling carrier has a coupling structure of a spherical curved surface. The second coupling carrier has a coupling structure of a curved surface or a plane tangential to the spherical curved surface of the first coupling carrier. The first and the second coupling carriers couple each other. The inclination angles with respect to two-axes and the polarization direction of the laser beam are adjusted by rotating the coupling structure of the spherical curved surface, which significantly reduces the time interval of calibration optimization of searching laser beam and also reaches the goal of optimization of light energy characteristics of the laser beam.
摘要翻译：提供了一种光拾取装置中的对准装置。它包括激光二极管，第一耦合载体，光学组件，信号检测器，记录介质和第二耦合载体。第一耦合载体承载激光二极管，而第二耦合载体承载光学组件和信号检测器。第一耦合载体具有球形曲面的耦合结构。第二耦合载体具有与第一耦合载体的球形曲面切线的曲面或平面的耦合结构。第一和第二耦合载体彼此耦合。通过旋转球面曲面的耦合结构来调节相对于两轴的倾斜角度和激光束的偏振方向，这显着缩短了搜索激光束校准优化的时间间隔，并达到了优化目标的光能特性的激光束。

5. 发明授权

US07358470B2 Optical pickup 失效
标题翻译：光学拾音
公开(公告)号：US07358470B2
公开(公告)日：2008-04-15
申请号：US11373379
申请日：2006-03-10
申请人： Jinn-Kang Wang , Tsung-Min Yang
发明人： Jinn-Kang Wang , Tsung-Min Yang
IPC分类号： G02B7/04 , G02B5/18 , G02F1/01 , G11B7/00
CPC分类号： G11B7/1365 , G11B7/1362
摘要： An optical pickup with a reflective coating device is provided, including a laser diode (LD), an optical element, and a photo detector integrated circuit (PDIC). The LD emits 1-3 lights with different wavelengths but the same polarization orientation. The beam transmits through the optical element set and focus on a recording media for data reading and writing. The beams are reflected by the recording media, through the optical element set, and detected by the PDIC for signal detection. The optical element set further includes a grating, a reflective coating device, and an objective lens. By using the reflective coating device to change the linear polarization orientation of the emitting light and the feedback light for 90° angle, the relative intensity noise caused by the feedback light in LD can be reduced.
摘要翻译：提供了具有反射涂覆装置的光学拾取器，其包括激光二极管（LD），光学元件和光电检测器集成电路（PDIC）。 LD发射1-3个具有不同波长但相同偏振方向的光。光束通过光学元件组传播并聚焦在用于数据读取和写入的记录介质上。光束被记录介质通过光学元件组反射，并被PDIC检测用于信号检测。光学元件组还包括光栅，反射涂层装置和物镜。通过使用反射涂层装置来改变发光的线偏振方向和反射光90°角，可以减少由LD中的反馈光引起的相对强度噪声。

6. 发明申请

US20070210243A1 Optical pickup 失效
标题翻译：光学拾音
公开(公告)号：US20070210243A1
公开(公告)日：2007-09-13
申请号：US11373379
申请日：2006-03-10
申请人： Jinn-Kang Wang , Tsung-Min Yang
发明人： Jinn-Kang Wang , Tsung-Min Yang
IPC分类号： G02F1/01
CPC分类号： G11B7/1365 , G11B7/1362
摘要： An optical pick with a reflective coating device is provided, including a laser diode (LD), an optical element, and a photo detector integrated circuit (PDIC). The LD emits 1-3 lights with different wavelengths but the same polarization orientation. The beam transmits the optical element set and focus on a recording media for data reading and writing. The beams are reflected by the recording media, through the optical element set, and detected by the PDIC for signal detection. The optical element set further includes a grating, a reflective coating device, and an objective lens. By using the reflective coating device to change the linear polarization orientation of the emitting light and the feedback light for 90° angle, the relative intensity noise caused by the feedback light in LD can be reduced.
摘要翻译：提供了具有反射涂层装置的光学拾取器，包括激光二极管（LD），光学元件和光电检测器集成电路（PDIC）。 LD发射1-3个具有不同波长但相同偏振方向的光。光束将光学元件组传输并聚焦在用于数据读取和写入的记录介质上。光束被记录介质通过光学元件组反射，并被PDIC检测用于信号检测。光学元件组还包括光栅，反射涂层装置和物镜。通过使用反射涂层装置来改变发光的线偏振方向和反射光90°角，可以减少由LD中的反馈光引起的相对强度噪声。

7. 发明授权

US07078674B2 Optical pickup device emitting linear polarized light with a 45 degree phase difference 有权
标题翻译：发射具有45度相位差的线性偏振光的光学拾取装置
公开(公告)号：US07078674B2
公开(公告)日：2006-07-18
申请号：US10751458
申请日：2004-01-06
申请人： Jinn-Kang Wang
发明人： Jinn-Kang Wang
IPC分类号： G02B27/28 , G02B27/40
CPC分类号： G11B7/1395
摘要： The present invention relates to an optical device which includes a first laser diode, a beam splitter, a first objective lens, a photo-detector, a second laser diode, a wedged plate beam splitter, a second objective lens and a collimator. The present invention deploys two independent transmitting paths. The retrieving paths share the beam splitter and the photo-detector commonly at the returning route.
摘要翻译：本发明涉及一种光学器件，其包括第一激光二极管，分束器，第一物镜，光检测器，第二激光二极管，楔形板分束器，第二物镜和准直器。本发明部署了两个独立的发送路径。检索路径在返回路线处共享光束分离器和光检测器。

8. 发明申请

US20110051587A1 Structure For Optical Pickup Head 审中-公开
标题翻译：光学拾音头结构
公开(公告)号：US20110051587A1
公开(公告)日：2011-03-03
申请号：US12546689
申请日：2009-08-25
申请人： Jinn-Kang Wang , Tsung-Min Yang , Chin-Sung Liu
发明人： Jinn-Kang Wang , Tsung-Min Yang , Chin-Sung Liu
IPC分类号： G11B7/00
CPC分类号： G11B7/1395 , G11B7/1275 , G11B7/1381
摘要： An optical pickup head is provided, including a laser diode set, an optical element set and an optical signal detector. The laser diode set is a laser light source capable of emitting single wavelength, two wavelengths or three wavelengths laser lights. Optical element set includes a low reflectivity beam-splitter and an objective lens. The low reflectivity beam-splitter has an average reflectivity ranging from 10% to 30%. After reflected twice by low reflectivity beam-splitter, the light fed back from recording medium to the laser diode set is reduced to avoid laser noise problem. Moreover, with the optical signal detector having a tilt θ ranging from 3° to 15° to optical axis, the optical signal detector can directly reflect the incident laser light into a different direction so that the reflected light will reduce the feedback light to the laser diode set.
摘要翻译：提供一种光拾取头，包括激光二极管组，光学元件组和光信号检测器。激光二极管组是能够发射单个波长，两个波长或三个波长的激光的激光光源。光学元件组包括低反射率分束器和物镜。低反射率分束器的平均反射率为10％至30％。在被低反射率分束器反射两次之后，从记录介质反馈到激光二极管组的光被减少以避免激光噪声问题。而且，光信号检测器具有倾斜角度; 光学信号检测器可以从3°到15°的范围内将入射的激光直接反射到不同的方向，使得反射光将减少到激光二极管组的反射光。

9. 发明申请

US20050145782A1 Optical pickup device 有权
标题翻译：光学拾取装置
公开(公告)号：US20050145782A1
公开(公告)日：2005-07-07
申请号：US10751458
申请日：2004-01-06
申请人： Jinn-Kang Wang
发明人： Jinn-Kang Wang
IPC分类号： G02B27/40 , G02F1/01 , G11B7/135
CPC分类号： G11B7/1395
摘要： The present invention relates to an optical device which includes a first laser diode, a beam splitter, a first objective lens, a photo-detector, a second laser diode, a wedged plate beam splitter, a second objective lens and a collimator. The present invention deploys two independent transmitting paths. The retrieving paths share the beam splitter and the photo-detector commonly at the returning route.
摘要翻译：本发明涉及一种光学器件，其包括第一激光二极管，分束器，第一物镜，光检测器，第二激光二极管，楔形板分束器，第二物镜和准直器。本发明部署了两个独立的发送路径。检索路径在返回路线处共享光束分离器和光检测器。

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