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1.发明申请公开(公告)号：US20060159143A1
公开(公告)日：2006-07-20
申请号：US10562285
申请日：2004-06-24
IPC分类号： H01S3/00
CPC分类号： G11B7/126 , G11B7/00456
摘要： A system and method is provided which compensates for the effects of relaxation oscillations and turn-on delays of diode laser devices. In particular, there is provided a method and system for tuning the shape of the power profile of an output optical signal and its position with respect to a channel bit clock of an optical recording system.
摘要翻译： 提供了补偿二极管激光器件的弛豫振荡和导通延迟的影响的系统和方法。 具体地，提供了一种用于调整输出光信号的功率曲线的形状及其相对于光学记录系统的通道位时钟的位置的方法和系统。
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2.发明申请公开(公告)号：US20050275917A1
公开(公告)日：2005-12-15
申请号：US10523384
申请日：2003-08-04
申请人： Nobuyoshi Mori , Katsuya Yagi , Bernardus Hendrikus Hendriks , Johannes Joseph Schleipen , Marco Van As
发明人： Nobuyoshi Mori , Katsuya Yagi , Bernardus Hendrikus Hendriks , Johannes Joseph Schleipen , Marco Van As
CPC分类号： G11B7/1374 , G11B7/121
摘要： An optical scanning device (1) for scanning an information layer (4) of an optical record carrier (2), the device (1) comprising a radiation source (11) for generating a radiation beam (12, 15, 20) and an objective system (18) for converging the radiation beam on the information layer, the information layer being covered by a transparent layer (3) of thickness td and refractive index nd. The objective system comprises a lens having a protection device projecting away from the lens towards the optical record carrier such that the distance between the protection device and the optical record carrier is less than the free working distance. The lens satisfies the condition: where D is the entrance pupil diameter, FWD is the free working distance, and D, FWD, t and td are all expressed in millimeters and where FWD+td/nd
摘要翻译： 一种用于扫描光学记录载体（2）的信息层（4）的光学扫描装置（1），所述装置（1）包括用于产生辐射束（12,15,20）的辐射源（11）和 目标系统（18），用于将辐射束会聚在信息层上，信息层被厚度为td的透明层（3）和折射率nd覆盖。 物镜系统包括具有保护装置的透镜，该保护装置从透镜朝向光学记录载体突出，使得保护装置与光学记录载体之间的距离小于自由工作距离。 透镜满足条件：其中D是入射光瞳直径，FWD是自由工作距离，D，FWD，t和td都以毫米表示，其中FWD + td / nd <0.51。
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公开(公告)号：US20060072387A1
公开(公告)日：2006-04-06
申请号：US10515734
申请日：2003-05-16
IPC分类号： G11B7/00
CPC分类号： G11B7/127 , G11B7/08576 , G11B7/0932 , G11B7/131 , G11B7/1384
摘要： The invention relates to an optical disk drive, which can be built very small. In order to solve cooling problems and collecting light reflected from the disk with maximum efficiency an optical disk drive is proposed comprising:—a laser diode for generating a laser beam, said laser diode being located at a fixed position in the drive,—an objective for focussing said laser beam on an optical disk,—a light guide for guiding said laser beam from said laser diode to said objective,—a detector for detecting light reflected from the optical disk, and—a movable swing arm for carrying said objective and said detector, said detector being arranged close to said objective such that the light reflected from the optical disk through said objective is detected.
摘要翻译： 本发明涉及一种可以非常小的光盘驱动器。 为了解决冷却问题并以最大的效率收集从光盘反射的光，提出了一种光盘驱动器，其包括： - 用于产生激光束的激光二极管，所述激光二极管位于驱动器中的固定位置， - 目标 用于将所述激光束聚焦在光盘上， - 用于将所述激光束从所述激光二极管引导到所述物镜的光导， - 用于检测从光盘反射的光的检测器，以及用于承载所述物镜的可动摆臂 所述检测器，所述检测器布置成靠近所述物镜，以便检测从光盘反射的光。
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公开(公告)号：US20060209643A1
公开(公告)日：2006-09-21
申请号：US10552810
申请日：2004-04-05
IPC分类号： G11B7/00
CPC分类号： G11B7/1392 , G11B7/0909 , G11B7/0916 , G11B7/1378 , G11B2007/13727
摘要： The invention relates to an optical scanning device and to an optical wavefront modifier for use therein, for scanning an optical record carrier, such as an optical disk comprising an information layer. The device comprises a radiation source (9) for emitting an incident radiation beam; a detection system comprising an information signal detector (25) arranged to receive radiation reflected from the information layer and to detect an information signal therein; an optical system (14, 12) for focusing the incident radiation beam to a spot on in the record carrier, and for directing the reflected radiation beam onto the information signal detector; and an optical wavefront modifier (10) arranged in the path of the incident radiation beam and the reflected radiation beam. The incident radiation beam has a first wavefront shape at a given location (L) prior to its incidence on the optical wavefront modifier and the reflected radiation beam has a second wavefront shape at the given location after passing through the optical wavefront modifier. In embodiments of the invention, the optical wavefront modifier is arranged to perform wavefront modification on the incident and reflected radiation beams such that the second wavefront shape is substantially different to the first wavefront shape. The second wavefront shape is of such a form that the optical path of the reflected radiation beam is less than the optical path of the incident radiation beam so that the optical scanning device can be further miniaturised.
摘要翻译： 本发明涉及一种用于扫描光学记录载体（例如包括信息层的光盘）的光学扫描装置和光学波前修正器。 该装置包括用于发射入射辐射束的辐射源（9） 检测系统，包括信息信号检测器（25），其被布置为接收从所述信息层反射的辐射并检测其中的信息信号; 用于将入射的辐射束聚焦到记录载体上的点上并用于将反射的辐射束引导到信息信号检测器上的光学系统（14,12） 以及布置在入射辐射束和反射辐射束的路径中的光波前修正器（10）。 入射辐射束在入射到光波前修正器之前在给定位置（L）处具有第一波前形状，并且反射的辐射束在通过光波前修正器之后具有在给定位置处的第二波前形状。 在本发明的实施例中，光波前修正器被布置成对入射和反射的辐射束执行波前修改，使得第二波阵面形状与第一波前形状基本不同。 第二波前形状是这样的形式：反射辐射束的光路小于入射辐射束的光路，使得光学扫描装置可以进一步小型化。
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公开(公告)号：US20050243688A1
公开(公告)日：2005-11-03
申请号：US10498141
申请日：2002-11-27
CPC分类号： G11B7/14 , G11B7/09 , G11B7/0953 , G11B7/1356 , G11B7/1376 , G11B7/13925 , G11B7/1395 , G11B2007/0013
摘要： An optical head for scanning a dual-layer disk includes a polarising beam splitter for splitting an input beam (7) from a single radiation source to form two separate, orthogonally polarised beams (9, 10). One of the beams is passed trough a fixed collimator lens (13), whilst the other is passed trough a movable collimator lens (21). The beams are directed along a common beam path through a common objective lens (17) which is itself movably mounted. Focusing and terror correction is provided separately for each layer when scanning the two layers by actuation of the objective (17) and movable collimator (21), respectively. The use of a single radiation source and a single objective provides a reduction in the number of components, and the complexity of components, required to read a dual-layer disk.
摘要翻译： 用于扫描双层盘的光学头包括偏振分束器，用于从单个辐射源分离输入光束（7）以形成两个分离的正交偏振光束（9,10）。 一个光束通过固定的准直透镜（13），而另一个光束通过可移动的准直透镜（21）。 光束沿着公共光束路径被引导通过本身可移动地安装的公共物镜（17）。 当通过物镜（17）和可移动准直器（21）的驱动分别扫描两层时，为每个层分别提供聚焦和恐怖校正。 使用单个辐射源和单个物镜可以减少组件的数量以及读取双层盘所需的组件的复杂性。
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公开(公告)号：US20060077866A1
公开(公告)日：2006-04-13
申请号：US10540707
申请日：2003-12-18
IPC分类号： G11B7/00
CPC分类号： G11B7/08576 , G11B7/0903 , G11B7/1353 , G11B7/1362
摘要： An optical scanning device for scanning tracks of an optical record carrier (OD) using a radiation beam, the device including an optical head (16), defining an optical axis (OA), for converging the radiation beam to a spot when scanning the record carrier; and a rotary arm (2) for moving the optical head across the record carrier. The device further comprises a rotatably mounted diffraction grating (8) for generating satellite beams for performing multi-spot tracking. Rotation of the grating is arranged to move the satellite beams, relative to the optical axis of the optical head, in correspondence with rotation of the rotary arm.
摘要翻译： 一种用于使用辐射束扫描光学记录载体（OD）的轨道的光学扫描装置，该装置包括限定光轴（OA）的光学头（16），用于在扫描记录时将辐射束会聚到一个点 载体 以及用于使光头移动通过记录载体的旋转臂（2）。 该装置还包括可旋转地安装的衍射光栅（8），用于产生用于执行多点跟踪的卫星光束。 光栅的旋转被设置成相对于旋转臂的旋转相对于光学头的光轴移动卫星光束。
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7.发明申请Apparatus And Method For Generating A Scanning Beam In An Optical Pickup Head, Miniature Optical Pickup Head And Optical Storage System Incorporating A Miniature Pickup Head 审中-公开用于在光学拾音头中产生扫描光束的装置和方法，微型拾音头和光学存储系统的微型拾音头公开(公告)号：US20070223329A1
公开(公告)日：2007-09-27
申请号：US11568723
申请日：2005-06-14
CPC分类号： G11B7/1376 , G11B7/123
摘要： A miniaturised optical pickup head for an optical storage system in which a well-collimated beam is generated. The optical pickup head comprises an optical system comprising a collimator leans and a reflective or diffractive elements, such as a 45 degree mirror. The optical system is attached to a cover plate and extends into a cavity defined by the cover plate and a substrate on which a radiation source is provided. The cover plate, and therefore, the optical system including the collimator lens is movable relative to the radiation source in a direction parallel to the optical axis of the collimator lends and the substrate so as to adjust the alignment of the collimator lens relative to the radiation beam generated by the radiation source.
摘要翻译： 一种用于光学存储系统的小型化光学拾取头，其中产生准直的光束。 光学拾取头包括一个光学系统，该光学系统包括一个准直器斜面和一个反射或衍射元件，例如45度反射镜。 光学系统附接到盖板并延伸到由盖板和其上设置有辐射源的基板限定的空腔中。 因此，盖板，因此包括准直透镜的光学系统可以在平行于准直器透镜和基板的光轴的方向上相对于辐射源移动，以便调整准直透镜相对于辐射的对准 由辐射源产生的光束。
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公开(公告)号：US20050201218A1
公开(公告)日：2005-09-15
申请号：US10521658
申请日：2003-07-02
申请人： Michael Adrianus Van Der Aa , Gerardus Lucien Jansen , Gerard Nijsse , Johannes Joseph Schleipen , Aukje Kastelijn , Frank Penning , Willem Ophey
发明人： Michael Adrianus Van Der Aa , Gerardus Lucien Jansen , Gerard Nijsse , Johannes Joseph Schleipen , Aukje Kastelijn , Frank Penning , Willem Ophey
CPC分类号： G11B7/1359 , G02B26/108 , G11B7/08576 , G11B7/1362 , G11B7/1398
摘要： An optical scanning device for scanning an information layer of an optical record carrier and including a rotary aim (2; 102; 202; 302; 402; 502) which is arranged to swing about a rotation axis (CR) to alter an angular position of the rotary arm about the rotation axis; a detector arrangement (10) arranged separate from the rotary arm (2; 102; 202; 302; 402; 502) for detecting a radiation beam spot, the radiation beam spot (40; 140; 240; 340; 440; 540) having an angular disposition; a first reflective surface (4; 104; 204; 304; 404; 504) attached to the rotary arm (2; 102; 202; 302; 402; 502); a second reflective surface (6; 106; 206; 306; 406; 506) attached to the rotary arm (2; 102; 302; 402; 502); a first light path (LP 1; LP 1 O 1; LP201; LP301; LP401; LP501) running from a location on the record carrier to said first reflective surface; a second light path (LP2; LP102; LP202; LP302; LP402; LP502) running from said first reflective surface to said second reflective surface; a third light path (LP3; LP103; LP203; LP303; LP403; LP503) running from said second reflective surface to said detector arrangement (10). The rotary arm includes at least one optical inversion element (52; 54; 56; 58; 64; 66) arranged such that a dependence between variation of the angular disposition of the radiation beam spot and variation of the angular position of the rotary arm is reduced.
摘要翻译： 一种用于扫描光学记录载体的信息层并包括旋转瞄准镜（2; 102; 202; 302; 402; 502）的光学扫描装置，其被设置成围绕旋转轴线（CR）摆动以改变角度位置 旋转臂围绕旋转轴线; 与所述旋转臂（2; 102; 202; 302; 402; 502）分开布置的用于检测辐射束点的检测器装置（10），所述辐射束点（40; 140; 240; 340; 440; 540）具有 角度配置; 附接到旋转臂（2; 102; 202; 302; 402; 502）的第一反射表面（4; 104; 204; 304; 404; 504） 附接到旋转臂（2; 102; 302; 402; 502）的第二反射表面（6; 106; 206; 306; 406; 506） 从记录载体上的位置到所述第一反射表面的第一光路（LP 1; LP 1 O 1; LP 201; LP 301; LP 401; LP 501） 从所述第一反射表面延伸到所述第二反射表面的第二光路（LP 2; LP 102; LP 202; LP 302; LP 402; LP 502） 从所述第二反射表面延伸到所述检测器装置（10）的第三光路（LP 3; LP 103; LP 203; LP 303; LP 403; LP 503）。 旋转臂包括至少一个光学反转元件（52; 54; 56; 58; 64; 66），其布置成使得辐射束点的角度配置的变化与旋转臂的角位置的变化之间的依赖关系是 减少
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