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    Multi Layer Variable Refractive Index Unit
    2.
    发明申请
    Multi Layer Variable Refractive Index Unit 审中-公开
    多层可变折射率单位

    公开(公告)号：US20080253262A1

    公开(公告)日：2008-10-16

    申请号：US10598991

    申请日：2005-03-08

    申请人： Ole Klembt Andersen ,  Marcello Leonardo Mario Balistreri

    发明人： Ole Klembt Andersen ,  Marcello Leonardo Mario Balistreri

    IPC分类号： G11B7/135

    CPC分类号： G11B7/13927 ,  G02F1/134309 ,  G02F1/13471 ,  G11B7/0948 ,  G11B7/1369

    摘要： A variable refractive index unit (140) includes an optical axis and a first layer (144a, 146a, 146a′ of controllably variable refractive index extending in a first predetermined configuration in a first plane transverse the optical axis. A second, different layer (144b, 146b, 146b′ of controllably variable refractive index extends in a second predetermined configuration in a second, different plane transverse the optical axis. The second layer (144b, 146b, 146b′) overlaps the first layer (144a, 146a, 146a′).

    摘要翻译： 可变折射率单元（140）包括光轴和在第一平面中沿第一预定结构延伸的可控地可变的折射率的第一层（144a，146a，146a'），横向于光轴;第二，不同的 第二层（144b，146b，146b'）与第一层（144b，146b，146b'）重叠在第一层 层（144a，146a，146a'）。

    Optical disc drive apparatus, method for measuring tilt of an optical disc, and method for correcting tilt of an optical disc
    3.
    发明授权
    Optical disc drive apparatus, method for measuring tilt of an optical disc, and method for correcting tilt of an optical disc 有权
    光盘驱动装置，用于测量光盘倾斜的方法以及用于校正光盘倾斜的方法

    公开(公告)号：US07116619B2

    公开(公告)日：2006-10-03

    申请号：US10521867

    申请日：2003-06-26

    申请人： Ole Klembt Andersen ,  Jacobus M. Den Hollander

    发明人： Ole Klembt Andersen ,  Jacobus M. Den Hollander

    IPC分类号： G11B7/00

    CPC分类号： G11B7/0956 ,  G11B11/10576

    摘要： Tilt (θ(r, φ)) is measured in a measuring location (P(r, φ) optical disc (2). A pivotable objective lens (34) is brought to a first focus measuring location such as to focus a light beam (32) in a first anchor point (P1(r−Δr1, φ))having the same angular coordinate φ as said measuring location (P(r, φ)) and having a small radial distance Δr1 from said measuring location. The objective lens is brought to a second focus measuring location such as to focus the light beam in a second anchor point (P2(r+Δr2, φ)) having the same angular coordinate φ as said measuring location and having a small radial distance Δr2 from said measuring location, wherein said first and second anchor pints are located on opposite sides of said measuring location. Tilt in said measuring location is calculated from the coordinates of said two focus measuring locations of said objective lens.

    摘要翻译： 在测量位置（P（r，phi））光盘（2）上测量倾斜（theta（r，phi））。可枢转物镜（34）被带到第一焦点测量位置， （P（r，phi））具有相同角度坐标phi并且具有距离所述测量位置的小的径向距离Deltar 1的第一锚点（P 1（r-Deltar 1，phi）） 将物镜带到第二焦点测量位置，以将光束聚焦在具有与所述测量位置相同的角坐标phi的第二锚定点（P 2（r + Deltar 2，phi））中，并且具有小的 从所述测量位置的径向距离Deltar 2，其中所述第一和第二锚定点位于所述测量位置的相对侧上。根据所述物镜的所述两个焦点测量位置的坐标来计算所述测量位置中的倾斜度。

    Method and device for measuring the tilt of an optical disc
    4.
    发明授权
    Method and device for measuring the tilt of an optical disc 失效
    用于测量光盘倾斜的方法和装置

    公开(公告)号：US07457217B2

    公开(公告)日：2008-11-25

    申请号：US10549636

    申请日：2004-03-10

    申请人： Sjoerd Stallinga ,  Ole Klembt Andersen ,  Juil Lee

    发明人： Sjoerd Stallinga ,  Ole Klembt Andersen ,  Juil Lee

    IPC分类号： G11B7/08

    CPC分类号： G11B7/1275 ,  G11B7/0945 ,  G11B7/0956 ,  G11B2007/0006

    摘要： A method and device for measuring the tilt in an optical disc drive (1) is disclosed. The optical disc drive (1) comprises two lasers (31, 41) generating two laser beams (32, 42) having mutually different optical characteristics. One of these laser beams (32) is continuously ON, and is used for writing or reading data to or form the disc. The other laser beam (42) is repeatedly switched ON and OFF. Tilt is measured by comparing a normalized error signal (RES(ON)) during the ON-phase (TON) with a normalized error signal (RES(OFF)) during the OFF-phase.

    摘要翻译： 公开了一种用于测量光盘驱动器（1）中的倾斜的方法和装置。 光盘驱动器（1）包括产生具有相互不同的光学特性的两个激光束（32,42）的两个激光器（31,41）。 这些激光束（32）中的一个连续地被接通，并用于将数据写入或读取或形成光盘。 另一个激光束（42）被重复地打开和关闭。 倾斜是通过在ON期（TON）期间的归一化误差信号（RES（ON））与归一化误差信号（RES（OFF））在断相期间进行比较来测量的。

    Method and Device For Compensating Tilt of an Optical Data Carrier
    5.
    发明申请
    Method and Device For Compensating Tilt of an Optical Data Carrier 审中-公开
    用于补偿光学数据载体倾斜的方法和装置

    公开(公告)号：US20080232207A1

    公开(公告)日：2008-09-25

    申请号：US10575423

    申请日：2004-10-01

    申请人： Teunis Willem Tukker ,  Ole Klembt Andersen ,  Coen Theodorus Liedenbaum

    发明人： Teunis Willem Tukker ,  Ole Klembt Andersen ,  Coen Theodorus Liedenbaum

    IPC分类号： G11B7/095

    CPC分类号： G11B7/13927 ,  G11B7/0956 ,  G11B7/1353

    摘要： The invention relates to a method of and a device for compensating tilt of an optical or magneto-optical disc (1) exhibiting unknown tilt when placed in an apparatus for reading and/or writing data from and/or onto the optical or magneto-optical disc. A holographic optical element (23) containing a plurality of holograms each defining a phase profile able to compensate at least a specific coma amount is placed in a light path of an optical read/write unit (4) of the apparatus. The amount of tilt of the disc or coma introduced by the tilt is detected (14, 21), and a hologram defining a phase profile corresponding to the detected amount of tilt or coma is selected and accessed among the plurality of holograms of the holographic optical element for compensating the detected amount of tilt or coma. The invention applies to any type of optical data carrier such as so-called LD, CD, R-CD, DVD, DVD+R, DVD+RW, DVD-RW, DVR (Blue Ray).

    摘要翻译： 本发明涉及一种用于补偿显示未知倾斜的光学或磁光盘（1）的倾斜的方法和装置，当放置在用于从光学或磁光学上读取和/或写入数据的装置中时 光盘。 包含多个全息图的全息光学元件（23）被放置在装置的光学读取/写入单元（4）的光路中，每个全息图限定能够补偿至少特定的彗差量的相位分布。 检测由倾斜引起的盘或彗差的倾斜量（14,21），并且在全息光学的多个全息图中选择和访问定义与检测到的倾斜或彗差量对应的相位轮廓的全息图 用于补偿检测到的倾斜或昏迷量的元件。 本发明适用于任何类型的光数据载体，例如所谓的LD，CD，R-CD，DVD，DVD + R，DVD + RW，DVD-RW，DVR（蓝光）。

    Optical scanning device with tilt detection
    6.
    发明授权
    Optical scanning device with tilt detection 有权
    具有倾斜检测功能的光学扫描装置

    公开(公告)号：US07359294B2

    公开(公告)日：2008-04-15

    申请号：US10531014

    申请日：2003-09-15

    申请人： Teunis Willem Tukker ,  Ole Klembt Andersen

    发明人： Teunis Willem Tukker ,  Ole Klembt Andersen

    IPC分类号： G11B7/00

    CPC分类号： G11B7/1353 ,  G11B7/0956 ,  G11B2007/0006

    摘要： This invention relates to an optical scanning device for scanning an optical record carrier and detecting a tilt characteristic of the optical record carrier during scanning. The device includes a redirecting structure (26) arranged on an objective lens (10) to redirect a part of a radiation beam, when travelling towards the record carrier, differently to a main part of the radiation beam. The redirected beam part follows a path which is different to that of a path followed by the main beam part, towards a position sensitive detector in a detection system (16).

    摘要翻译： 本发明涉及一种用于扫描光学记录载体并在扫描期间检测光学记录载体的倾斜特性的光学扫描装置。 所述装置包括布置在物镜（10）上的重定向结构（26），以在朝向记录载体行进时重新定向辐射束的一部分，不同于辐射束的主要部分。 重定向的光束部分遵循与检测系统（16）中的位置敏感检测器相对应的跟随主光束部分的路径不同的路径。