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1. 发明授权

US06430138B2 Bifocal optical pickup head 有权
标题翻译：双焦光学拾音头
公开(公告)号：US06430138B2
公开(公告)日：2002-08-06
申请号：US09799382
申请日：2001-02-27
申请人： Hung-Lu Chang , Tzu-Ping Yang , Der-Ray Huang
发明人： Hung-Lu Chang , Tzu-Ping Yang , Der-Ray Huang
IPC分类号： G11B700
CPC分类号： G11B7/1353 , G11B7/0948 , G11B7/1365 , G11B7/1367 , G11B2007/0006 , G11B2007/13727
摘要： A bifocal optical pickup head is disclosed for use in a optical pickup apparatus having a single objective lens, for generating two different focuses (bifocus) to access a compact disc (CD) and a digital versatile disc (DVD), which the thickness is different. When a beam passes through an optical element disclosed in the present invention, numerical aperture is controlled and spherical aberration is reduced by the optical element due to variations in optical path and radius. Therefore, after beams having different numerical apertures are focused by an objective lens, various focuses can be obtained.
摘要翻译：公开了一种用于具有单个物镜的光学拾取装置的双焦点光学拾取头，用于产生两个不同的焦点（双焦点）以访问光盘（CD）和数字通用光盘（DVD），其厚度不同。当光束通过本发明公开的光学元件时，由于光路和半径的变化，数值孔径被控制，光学元件减小了球面像差。因此，在具有不同数值孔径的光束被物镜聚焦之后，可获得各种焦点。

2. 发明授权

US06236633B1 Bifocal optical pickup head 有权
标题翻译：双焦光学拾音头
公开(公告)号：US06236633B1
公开(公告)日：2001-05-22
申请号：US09262962
申请日：1999-03-04
申请人： Hung-Lu Chang , Tzu-Ping Yang , Der-Ray Huang
发明人： Hung-Lu Chang , Tzu-Ping Yang , Der-Ray Huang
IPC分类号： G11B700
CPC分类号： G11B7/1353 , G11B7/1365 , G11B7/1367 , G11B7/139 , G11B7/13922 , G11B7/1395 , G11B2007/0006 , G11B2007/13727
摘要： A bifocal optical pickup head is disclosed for use in a optical pickup apparatus having a single objective lens, for generating two different focuses (bifocus) to access a compact disc (CD) and a digital versatile disc (DVD), which the thickness is different. When a beam passes through an optical element disclosed in the present invention, numerical aperture is controlled and spherical aberration is reduced by the optical element due to variations in optical path and radius. Therefore, after beams having different numerical apertures are focused by an objective lens, various focuses can be obtained.
摘要翻译：公开了一种用于具有单个物镜的光学拾取装置的双焦点光学拾取头，用于产生两个不同的焦点（双焦点）以访问光盘（CD）和数字通用光盘（DVD），其厚度不同。当光束通过本发明公开的光学元件时，由于光路和半径的变化，数值孔径被控制，光学元件减小了球面像差。因此，在具有不同数值孔径的光束被物镜聚焦之后，可获得各种焦点。

3. 发明授权

US06369377B1 Multiple-beam holographic optical pick-up head 失效
标题翻译：多光束全息光学拾光头
公开(公告)号：US06369377B1
公开(公告)日：2002-04-09
申请号：US09615412
申请日：2000-07-13
申请人： Hsi-Fu Shih , Jau-Jiu Ju , Tzu-Ping Yang , Wei-Chih Lu , Mark O. Freeman , Der-Ray Huang , Carl Y. Yang
发明人： Hsi-Fu Shih , Jau-Jiu Ju , Tzu-Ping Yang , Wei-Chih Lu , Mark O. Freeman , Der-Ray Huang , Carl Y. Yang
IPC分类号： G11B700
CPC分类号： G11B7/1353 , G11B7/14
摘要： The present invention discloses a multiple-beam holographic optical pick-up head, which has the advantages of the multiple-beam optical pick-up head and the holographic optical pick-up head and can increase the light usage efficiency. This invention uses the property that a polarized diffractive optical element can generate different optical effects for laser beam with different polarizations and places a polarized multiple-beam grating and polarized hologram on the optical path for splitting the incident light toward the disc into multiple reading beams by the multiple-beam grating. The returning laser beams reflected from the disc are diffracted and diverted by the hologram to reach a photodetector. Both the incident and reflective beams are diffracted once only; thus the light usage efficiency can be increased.
摘要翻译：本发明公开了一种多光束全息光学拾波头，其具有多光束拾取头和全息光学拾取头的优点，可以提高光的使用效率。本发明使用偏振衍射光学元件可以对具有不同偏振度的激光束产生不同光学效应的特性，并且在光路上放置偏振多光束光栅和偏振全息图，以将入射光朝向盘分离为多个读取光束多光束光栅。从盘反射的返回激光束被全息图衍射并转移到光电检测器。入射光束和反射光束都被衍射一次; 从而可以提高光的使用效率。

4. 发明授权

US06320660B1 Sieving apparatus for a bio-chip 有权
标题翻译：用于生物芯片的筛分设备
公开(公告)号：US06320660B1
公开(公告)日：2001-11-20
申请号：US09545954
申请日：2000-04-10
申请人： Jau-Jiu Ju , Der-Ray Huang , Tzu-Ping Yang
发明人： Jau-Jiu Ju , Der-Ray Huang , Tzu-Ping Yang
IPC分类号： G01N2125
CPC分类号： G01N21/6452 , G01N21/251 , G01N2021/6478
摘要： The invention is directed to a sieving apparatus for a bio-chip, which has a light source, a HOE unit, a splitter, an objective lens, a filter, and an optical signal sensor. The HOE unit is coupled with a light source, so as to diffract the light into a zeroth order beam and a first order beam. The zeroth order beam has no deflection but the first order beam has a deflection from the zeroth order beam. The splitter is coupled to the HOE unit, so as to lead the two beams to the objective lens, which further leads the two beams to the bio-chip, in which the first order beam is incident onto the bio-chip from an incident angle, causing a florescent light from the sample. The bio-chip also reflects the zeroth order beam. Both the reflected zeroth order beam and the fluorescent light travel through the objective lens and the splitter. The filter is coupled to the splitter, so that an undesired portion of the light beams incident on the splitter is filtered. The optical sensor receives the light beams after the filter. The zeroth order beam is used to generate a focusing signal and a tracking signal. The focussing signal and the tracking signal are used to control the servo, so as to align the optical sensor to the samples for detecting the florescent light. Alternatively, the sensor can be fixed but the bio-chip is shifted by the servo system.
摘要翻译：本发明涉及一种用于生物芯片的筛分装置，其具有光源，HOE单元，分裂器，物镜，滤光器和光信号传感器。 HOE单元与光源耦合，以将光衍射成零级光束和一级光束。零级光束没有偏转，但是第一级光束具有来自零级光束的偏转。分离器耦合到HOE单元，以便将两个光束引导到物镜，该物镜进一步将两个光束引导到生物芯片，其中一阶光束从入射角入射到生物芯片上，引起来自样品的荧光。生物芯片还反映了零级光束。反射的零级光束和荧光都穿过物镜和分光镜。滤波器耦合到分路器，使得入射在分路器上的不期望的部分光束被过滤。光学传感器接收过滤器后的光束。零级光束用于产生聚焦信号和跟踪信号。聚焦信号和跟踪信号用于控制伺服，以便将光学传感器对准样品以检测荧光。或者，传感器可以被固定，但是生物芯片被伺服系统移位。

5. 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。

6. 发明授权

US07853966B2 Optical recording and/or reproducing apparatus with protection shield 失效
标题翻译：具有保护屏蔽的光学记录和/或再现装置
公开(公告)号：US07853966B2
公开(公告)日：2010-12-14
申请号：US11858912
申请日：2007-09-21
申请人： Yen-Wen Wang , Xue-Dong Tang , Tzu-Ping Yang
发明人： Yen-Wen Wang , Xue-Dong Tang , Tzu-Ping Yang
IPC分类号： G11B7/00
CPC分类号： G11B7/121
摘要： According to another aspect, an optical recording and/or reproducing apparatus includes a frame, a spindle motor, a pair of parallel guide rails, an optical pickup head, and a shield mounted on the guide rails. The shield extends a protection surface higher than a lens of the optical pickup head. The protection surface is in an optical disc region and lowers than the optical disc when the optical disc is supported on the spindle motor.
摘要翻译：根据另一方面，光学记录和/或再现装置包括框架，主轴电机，一对平行导轨，光学拾取头和安装在导轨上的屏蔽。屏蔽件将保护表面延伸得比光拾取头的透镜高。当光盘被支撑在主轴电机上时，保护表面在光盘区域中并且比光盘低。

7. 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。

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