利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

18 条记录 (耗时 0.012 秒)

    Holographic recording medium and method for preparing the same
    1.
    发明授权
    Holographic recording medium and method for preparing the same 有权
    制备该介质的全息记录介质和方法

    公开(公告)号：EP2073203B1

    公开(公告)日：2010-10-27

    申请号：EP08305902.2

    申请日：2008-12-09

    申请人： Thomson Licensing

    发明人： Trautner, Heiko ,  Richter, Hartmut

    IPC分类号： G11B7/24 ,  G11B7/0065

    CPC分类号： G11B7/24044 ,  G03H2250/34 ,  G11B7/0065 ,  G11B7/0938

    摘要： The present invention relates to a holographic recording medium (9) with an improved servo structure. The holographic recording medium (9) has a hologram layer (96) for storing holograms and a servo layer (92) for positioning a light beam for reading and/or recording of a hologram relative to the holographic recording medium. The servo layer (92) is an essentially flat dye recording layer (98). A holographic pickup (1) for use with such a holographic recording medium (9) includes a light source (13) for generating a light beam (14), which interacts with the dye recording layer (98) for recording servo information (99).

    Method for producing a security mark on an optical data carrier
    2.
    发明公开
    Method for producing a security mark on an optical data carrier 有权
    一种用于光学数据载体上产生安全标记方法

    公开(公告)号：EP1918915A2

    公开(公告)日：2008-05-07

    申请号：EP07301468.0

    申请日：2007-10-16

    申请人： Thomson Licensing

    发明人： Knittel, Joachim ,  Richter, Hartmut

    IPC分类号： G11B7/0065 ,  G11B23/38

    CPC分类号： G11B20/00355 ,  G11B7/0053 ,  G11B7/0065 ,  G11B7/00736 ,  G11B7/24088 ,  G11B7/26 ,  G11B20/00086 ,  G11B20/0034 ,  G11B20/00876 ,  G11B23/0035 ,  G11B23/281 ,  G11B23/38 ,  G11B23/40 ,  G11B2220/2541 ,  G11B2220/2545 ,  G11B2220/2562

    摘要： The device comprises directing means (8a,8b,11) for directing a first and a second light beam (7,6) onto a hologram area (10) of the optical data carrier (1), wherein the first and second light beams (7,6) are coherent light beams. The directing means (8a,8b,11) are adapted to direct the first light beam (7) onto the hologram area (10) along a first direction, and the second light beam (6) onto the hologram area (10) along a second direction. Tilting means (12) are provided for tilting the second direction by a predefined tilt angle with respect to the first direction.
    Generating the security mark (30) through interference of the first and second light beam, wherein an information bit is encoded by the sign and/or the value of the tilt angle.

    摘要翻译： 该装置包括用于引导第一和第二光束（7.6）到光学数据载体（1）的全息图区域（10），worin第一和第二光束导向装置（8A，8B，11）（ 7.6）是相干光束。 所述引导装置（8A，8B，11）是angepasst以引导所述第一光束（7）到全息区域（10）沿着第一方向，和所述第二光束（6）安装到沿所述全息区域（10） 第二方向。 提供了用于通过预定的倾斜角相对于所述第一方向倾斜的第二方向的倾斜装置（12）。 通过第一和第二光束的干涉生成的安全标记（30），将信息比特的worin由符号和/或倾斜角的值进行编码。

    Apparatus for writing to an optical recording medium
    4.
    发明公开
    Apparatus for writing to an optical recording medium 审中-公开
    用于写入光学记录介质的设备

    公开(公告)号：EP2187392A1

    公开(公告)日：2010-05-19

    申请号：EP08305811.5

    申请日：2008-11-18

    申请人： Thomson Licensing

    发明人： Knittel, Joachim ,  Richter, Hartmut

    IPC分类号： G11B7/135

    CPC分类号： G11B7/1392 ,  G11B7/1275 ,  G11B7/1378 ,  G11B7/139 ,  G11B7/1398

    摘要： The present invention relates to an apparatus (19) for writing to an optical recording medium (7) intended to be read at a first wavelength, which uses a light beam (2) of a second wavelength for writing and is based on an apparatus for writing to an optical recording medium intended to be read at the second wavelength. The invention further relates to an optical compensation element (12) and an optical pickup for use in such an apparatus.
    According to the invention, an optical compensation element (12) is provided for use in an optical pickup for recording on an optical recording medium (7) intended to be read with a light beam (2') at a first wavelength and with a first numerical aperture, which result in a first spot size of the light beam (2') on the optical recording medium (7), the optical pickup having a light source (1) for generating a light beam (2) at a second wavelength and an objective lens (6) with a second numerical aperture different from said first numerical aperture. The optical compensation element (12) adapts a spot size of the light beam (2) on the optical recording medium (7) to said first spot size.

    摘要翻译： 本发明涉及一种用于写入以第一波长读取的光学记录介质（7）的设备（19），该设备使用第二波长的光束（2）进行写入并且基于用于 写入旨在以第二波长读取的光学记录介质。 本发明还涉及光学补偿元件（12）和用于这种设备的光学拾取器。 根据本发明，提供光学补偿元件（12）用于光学拾取器中，用于在光学记录介质（7）上进行记录，所述光学记录介质（7）旨在用第一波长的光束（2'）读取并且具有第一波长 其产生光记录介质（7）上的光束（2'）的第一光斑尺寸，所述光学拾取器具有用于产生第二波长的光束（2）的光源（1），以及 具有不同于所述第一数值孔径的第二数值孔径的物镜（6）。 光学补偿元件（12）将光学记录介质（7）上的光束（2）的光斑尺寸调整为所述第一光斑尺寸。

    Holographic disk medium with servo marks
    5.
    发明公开
    Holographic disk medium with servo marks 审中-公开
    与伺服标记全息磁盘介质

    公开(公告)号：EP1691356A3

    公开(公告)日：2008-12-03

    申请号：EP06300068.1

    申请日：2006-01-25

    申请人： Thomson Licensing

    发明人： Knittel, Joachim ,  Richter, Hartmut ,  Knappmann, Stephan

    IPC分类号： G11B7/0065 ,  G11B7/09

    CPC分类号： G11B7/0938 ,  G11B7/00772 ,  G11B7/24044

    摘要： The present invention relates to a holographic disk medium (1) with servo marks (7), and more specifically to a holographic disk medium (1) having a common reflective layer (3) for reflecting a servo beam (9) and object and reference beams (8). According to the invention, a holographic disk medium (1) with a recording layer (2) for recording holograms (6) and a reflective layer (3) for reflecting a servo beam (9) and object and reference beams (8), includes servo marks (7) which are located in the reflective layer (3) at least partly below the holograms (6), wherein the servo marks (7) are designed such that their influence on the object and reference beams (8) is minimized.

    Compatible optical recording medium
    6.
    发明公开
    Compatible optical recording medium 审中-公开
    兼容的光学记录介质

    公开(公告)号：EP1933313A1

    公开(公告)日：2008-06-18

    申请号：EP06301252.0

    申请日：2006-12-14

    申请人： Thomson Licensing

    发明人： Knittel, Joachim ,  Richter, Hartmut ,  Hamersley, Alan Bruce

    IPC分类号： G11B7/007 ,  G11B7/135 ,  G11B7/0045 ,  G11B7/005 ,  G11B7/125

    CPC分类号： G11B7/24097 ,  G11B7/0045 ,  G11B7/005 ,  G11B7/24079

    摘要： The optical recording medium has a recording layer (2) sensitive for recording at a first wavelength and sensitive for reading at a second wavelength, the recording layer (2) having a groove structure (4), wherein at the first wavelength the groove structure (4) has a diffraction efficiency into a first diffraction order sufficiently large to generate a push-pull signal, and at the second wavelength it has a diffraction efficiency into a first diffraction order close to zero.
    The optical pickup has a light source for generating a light beam (6) at a first wavelength and a numerical aperture given by the second numerical aperture multiplied with the ratio of the first wavelength and the second wavelength.

    摘要翻译： 所述光学记录介质具有对第一波长的记录敏感并且对第二波长的读取敏感的记录层（2），所述记录层（2）具有凹槽结构（4），其中在所述第一波长处所述凹槽结构（ 4）具有足够大的第一衍射级以产生推挽信号的衍射效率，并且在第二波长具有接近零的第一衍射级的衍射效率。 光学拾取器具有用于产生第一波长的光束（6）的光源和由第二数值孔径给出的数值孔径乘以第一波长和第二波长的比率。

    Method for recording on an optical recording medium
    7.
    发明公开
    Method for recording on an optical recording medium 审中-公开
    用于在光学记录介质上进行记录的方法

    公开(公告)号：EP1814112A1

    公开(公告)日：2007-08-01

    申请号：EP06301205.8

    申请日：2006-12-01

    申请人： Thomson Licensing S.A.

    发明人： Braeuer, Dietmar ,  Hofmann, Holger ,  Richter, Hartmut ,  Pilard, Gael

    IPC分类号： G11B7/0045 ,  G11B7/0055 ,  G11B7/26 ,  G11B7/006

    CPC分类号： G11B7/00456 ,  G11B7/00557 ,  G11B7/0062 ,  G11B7/268

    摘要： The invention relates to a method for recording on an optical recording medium, to an optical recording medium suitable for this method, and to a device for writing to optical recording media using such method or optical recording medium.
    According to the invention the recording process is split into two tasks: Pre-writing (11) an optical recording medium, e.g. in a stationary device, and recording (13) on the optical recording medium with a low-power write strategy, e.g. in a mobile device.

    摘要翻译： 本发明涉及一种用于在光学记录介质上进行记录的方法，一种适用于该方法的光学记录介质，以及一种使用这种方法向光学记录介质进行写入的装置或光学记录介质。 根据本发明，记录过程分成两个任务：预写（11）光记录介质，例如， 在一个固定的装置中，并且用低功率写策略（例如在光盘上）记录（13）在光记录介质上。 在移动设备中。

    Pickup for optical recording medium
    8.
    发明公开
    Pickup for optical recording medium 有权
    欧洲食品安全中心（Aufzeichnungsmedium）

    公开(公告)号：EP1736977A1

    公开(公告)日：2006-12-27

    申请号：EP06300541.7

    申请日：2006-06-01

    申请人： Thomson Licensing

    发明人： Knittel, Joachim ,  Richter, Hartmut ,  Pilard, Gael

    IPC分类号： G11B7/135 ,  G11B7/14 ,  G02B5/18

    CPC分类号： G02B5/1828 ,  G11B7/0903 ,  G11B7/1353 ,  G11B7/1369 ,  G11B7/14 ,  G11B7/24

    摘要： The invention relates to an optical pickup for an optical recording medium (1), an electrically controlled diffraction grating (11) suitable for use in such a pickup, and to an apparatus for reading from and/or writing to optical recording media (1) using such an optical pickup or diffraction grating (11).
    According to the invention, an optical pickup for optical recording media (1) having two or more data tracks (4), with a light source (10) for emitting a light beam for reading from and/or writing to an optical recording medium (1), includes an electrically controlled diffraction grating (11), which is switchable between at least two states for generating one or more light beams from the light beam emitted by the light source (10) for reading from and/or writing to one or more of the data tracks (4).

    摘要翻译： 本发明涉及一种用于光学记录介质（1）的光学拾取器，适用于这种拾取器的电控衍射光栅（11）以及用于从光学记录介质（1）读取和/或写入光学记录介质的设备， 使用这种光学拾取器或衍射光栅（11）。 根据本发明，一种用于具有两个或更多个数据轨道（4）的光学记录介质（1）的光学拾取器，具有用于发出用于从光学记录介质读取和/或向光学记录介质写入的光束的光源（10） 1）包括电控衍射光栅（11），其可在至少两个状态之间切换，用于从由光源（10）发射的光束产生一个或多个光束，用于从一个或多个光源 更多的数据轨道（4）。