公开(公告)号：US20120124601A1

公开(公告)日：2012-05-17

申请号：US13138905

申请日：2010-04-26

申请人： Gael Pilard ,  Herbert Hoelzemann ,  Alois Kern ,  Frank Przygodda ,  Stephan Knappmann

发明人： Gael Pilard ,  Herbert Hoelzemann ,  Alois Kern ,  Frank Przygodda ,  Stephan Knappmann

IPC分类号： G11B7/24 ,  G11B7/1374

CPC分类号： G11B7/24079 ,  G11B7/0901 ,  G11B7/24 ,  G11B7/24085

摘要： The optical storage medium comprises a substrate layer and a data layer disposed on the substrate layer, the data layer having a mark/space data structure being arranged in tracks, wherein on a first track, the marks are enlarged in length and the spaces are shortened in length, and on an adjacent track, the marks are shortened in length and the spaces are enlarged in length. The track pitch between adjacent tracks is particularly below a diffraction limit of λ/2*NA of a pickup for reading of the data.

摘要翻译： 光学存储介质包括衬底层和设置在衬底层上的数据层，数据层具有布置在轨道中的标记/空间数据结构，其中在第一轨道上标记被长度增大并且空间被缩短 并且在相邻的轨道上，标记的长度被缩短，并且空间的长度被扩大。 相邻轨道之间的轨道间距特别低于用于读取数据的拾取器的λ/ 2 * NA的衍射极限。

公开(公告)号：US08493832B2

公开(公告)日：2013-07-23

申请号：US13138905

申请日：2010-04-26

申请人： Gael Pilard ,  Herbert Hoelzemann ,  Alois Kern ,  Frank Przygodda ,  Stephan Knappmann

发明人： Gael Pilard ,  Herbert Hoelzemann ,  Alois Kern ,  Frank Przygodda ,  Stephan Knappmann

IPC分类号： G11B7/24

CPC分类号： G11B7/24079 ,  G11B7/0901 ,  G11B7/24 ,  G11B7/24085

摘要： The optical storage medium comprises a substrate layer and a data layer disposed on the substrate layer, the data layer having a mark/space data structure being arranged in tracks, wherein on a first track, the marks are enlarged in length and the spaces are shortened in length, and on an adjacent track, the marks are shortened in length and the spaces are enlarged in length. The track pitch between adjacent tracks is particularly below a diffraction limit of λ/2*NA of a pickup for reading of the data.

摘要翻译： 光学存储介质包括衬底层和设置在衬底层上的数据层，数据层具有布置在轨道中的标记/空间数据结构，其中在第一轨道上标记被长度增大并且空间被缩短 并且在相邻的轨道上，标记的长度被缩短，并且空间的长度被扩大。 相邻轨道之间的轨道间距特别低于用于读取数据的拾取器的λ/ 2 * NA的衍射极限。

公开(公告)号：US08619534B2

公开(公告)日：2013-12-31

申请号：US13518076

申请日：2010-12-07

申请人： Stephan Knappmann ,  Frank Przygodda

发明人： Stephan Knappmann ,  Frank Przygodda

IPC分类号： G11B7/00

CPC分类号： G11B7/0956 ,  G11B7/0948 ,  G11B7/1353 ,  G11B7/1369 ,  G11B7/1387 ,  G11B7/13925

摘要： An apparatus for reading from or writing to a near-field optical recording medium capable of detecting tilt and spherical aberration is described. The apparatus comprises a light source for generating a reading light beam, a near-field lens, an aberration compensation element, and a diffractive optical element. The diffractive optical element is switchable between a far-field mode and a near-field mode and is adapted to generate a main light beam and four or more sub-beams from the reading light beam for determining at least a cover layer thickness error signal. For this purpose it has an outer region with a first grating period and an inner region having a diameter smaller than an effective numerical aperture of the near-field lens, which in the near-field mode has a second grating period and which has a switchable inner area having a diameter smaller than a far-field numerical aperture of the near-field lens, which in the far-field mode has the first grating period. The aberration compensation element is adapted to be adjusted based on the thickness error signal when the diffractive optical element is in the near-field mode.

摘要翻译： 描述了一种用于读取或写入能够检测倾斜和球面像差的近场光学记录介质的装置。 该装置包括用于产生读取光束的光源，近场透镜，像差补偿元件和衍射光学元件。 衍射光学元件可以在远场模式和近场模式之间切换，并且适于从读取光束产生主光束和四个或更多个子光束，用于至少确定覆盖层厚度误差信号。 为此，它具有具有第一光栅周期的外部区域和具有小于近场透镜的有效数值孔径的直径的内部区域，其在近场模式中具有第二光栅周期并且具有可切换的 内部区域的直径小于近场透镜的远场数值孔径，其在远场模式中具有第一光栅周期。 当衍射光学元件处于近场模式时，像差补偿元件适于基于厚度误差信号进行调整。

公开(公告)号：US20130003515A1

公开(公告)日：2013-01-03

申请号：US13518076

申请日：2010-12-07

申请人： Stephan Knappmann ,  Frank Przygodda

发明人： Stephan Knappmann ,  Frank Przygodda

IPC分类号： G11B7/1353

CPC分类号： G11B7/0956 ,  G11B7/0948 ,  G11B7/1353 ,  G11B7/1369 ,  G11B7/1387 ,  G11B7/13925

摘要： An apparatus for reading from or writing to a near-field optical recording medium capable of detecting tilt and spherical aberration is described. The apparatus comprises a light source for generating a reading light beam, a near-field lens, an aberration compensation element, and a diffractive optical element. The diffractive optical element is switchable between a far-field mode and a near-field mode and is adapted to generate a main light beam and four or more sub-beams from the reading light beam for determining at least a cover layer thickness error signal. For this purpose it has an outer region with a first grating period and an inner region having a diameter smaller than an effective numerical aperture of the near-field lens, which in the near-field mode has a second grating period and which has a switchable inner area having a diameter smaller than a far-field numerical aperture of the near-field lens, which in the far-field mode has the first grating period. The aberration compensation element is adapted to be adjusted based on the thickness error signal when the diffractive optical element is in the near-field mode.

摘要翻译： 描述了一种用于读取或写入能够检测倾斜和球面像差的近场光学记录介质的装置。 该装置包括用于产生读取光束的光源，近场透镜，像差补偿元件和衍射光学元件。 衍射光学元件可以在远场模式和近场模式之间切换，并且适于从读取光束产生主光束和四个或更多个子光束，用于至少确定覆盖层厚度误差信号。 为此，它具有具有第一光栅周期的外部区域和具有小于近场透镜的有效数值孔径的直径的内部区域，其在近场模式中具有第二光栅周期并且具有可切换的 内部区域的直径小于近场透镜的远场数值孔径，其在远场模式中具有第一光栅周期。 当衍射光学元件处于近场模式时，像差补偿元件适于基于厚度误差信号进行调整。

公开(公告)号：US20120257488A1

公开(公告)日：2012-10-11

申请号：US13517469

申请日：2010-12-07

申请人： Stephan Knappmann ,  Frank Przygodda

发明人： Stephan Knappmann ,  Frank Przygodda

IPC分类号： G11B7/1387 ,  G11B7/1395 ,  G11B7/1353 ,  G11B7/1376 ,  G11B7/125

CPC分类号： G02B27/56 ,  G11B7/1374 ,  G11B7/1387

摘要： A method and an apparatus for reading from a near-field optical recording medium are described. The apparatus includes: an optical system for generating a signal beam and a reference beam; a near-field lens for illuminating the signal beam onto the near-field optical recording medium, for collimating a reflected signal beam, and for reflecting the reference beam; and at least a first detector and a second detector for obtaining a homodyne detection signal from the reflected signal beam and the reflected reference beam.

摘要翻译： 描述用于从近场光学记录介质读取的方法和装置。 该装置包括：用于产生信号光束和参考光束的光学系统; 近场透镜，用于将信号光束照射到近场光学记录介质上，用于准直反射的信号光束，并用于反射参考光束; 以及至少第一检测器和第二检测器，用于从反射信号光束和反射参考光束获得零差检测信号。

公开(公告)号：US08432781B2

公开(公告)日：2013-04-30

申请号：US13517469

申请日：2010-12-07

申请人： Stephan Knappmann ,  Frank Przygodda

发明人： Stephan Knappmann ,  Frank Przygodda

IPC分类号： G11B7/00

CPC分类号： G02B27/56 ,  G11B7/1374 ,  G11B7/1387

摘要： A method and an apparatus for reading from a near-field optical recording medium are described. The apparatus includes: an optical system for generating a signal beam and a reference beam; a near-field lens for illuminating the signal beam onto the near-field optical recording medium, for collimating a reflected signal beam, and for reflecting the reference beam; and at least a first detector and a second detector for obtaining a homodyne detection signal from the reflected signal beam and the reflected reference beam.

摘要翻译： 描述用于从近场光学记录介质读取的方法和装置。 该装置包括：用于产生信号光束和参考光束的光学系统; 近场透镜，用于将信号光束照射到近场光学记录介质上，用于准直反射的信号光束，并用于反射参考光束; 以及至少第一检测器和第二检测器，用于从反射信号光束和反射参考光束获得零差检测信号。

公开(公告)号：US20110249540A1

公开(公告)日：2011-10-13

申请号：US12932186

申请日：2011-02-18

申请人： Frank Przygodda ,  Stephan Knappman ,  Herbert Hoelzemann

发明人： Frank Przygodda ,  Stephan Knappman ,  Herbert Hoelzemann

IPC分类号： G11B7/007 ,  G11B7/24

CPC分类号： G11B7/24085 ,  G11B7/0053 ,  G11B7/00736 ,  G11B7/00745 ,  G11B7/08505 ,  G11B7/126 ,  G11B7/24

摘要： Methods for operating an apparatus for reading from or writing to a Super-RENS optical recording medium, an apparatus for reading from Super-RENS optical recording media using such methods, and a Super-RENS optical recording medium suitable for such methods are described. The super-RENS optical recording medium has location information that is readable without super-RENS effect. The location information is provided as low-frequency information. For locating a position on the super-RENS optical recording medium, a reading light beam with a power below a power necessary for achieving a super-RENS effect is generated and the location information is retrieved from the super-RENS optical recording medium.

摘要翻译： 用于操作用于从Super-RENS光学记录介质读取或写入的设备的方法，使用这种方法从Super-RENS光学记录介质读取的设备以及适用于这种方法的Super-RENS光学记录介质。 超级RENS光学记录介质具有可读取而不具有超RENS效果的位置信息。 位置信息作为低频信息提供。 为了定位超级RENS光学记录介质上的位置，产生功率低于实现超RENS效果所需的功率的读取光束，并且从超RENS光学记录介质检索位置信息。

公开(公告)号：US08605554B2

公开(公告)日：2013-12-10

申请号：US12932186

申请日：2011-02-18

申请人： Frank Przygodda ,  Stephan Knappman ,  Herbert Hoelzemann

发明人： Frank Przygodda ,  Stephan Knappman ,  Herbert Hoelzemann

IPC分类号： G11B7/007 ,  G11B7/24

CPC分类号： G11B7/24085 ,  G11B7/0053 ,  G11B7/00736 ,  G11B7/00745 ,  G11B7/08505 ,  G11B7/126 ,  G11B7/24

摘要： Methods for operating an apparatus for reading from or writing to a Super-RENS optical recording medium, an apparatus for reading from Super-RENS optical recording media using such methods, and a Super-RENS optical recording medium suitable for such methods are described. The super-RENS optical recording medium has location information that is readable without super-RENS effect. The location information is provided as low-frequency information. For locating a position on the super-RENS optical recording medium, a reading light beam with a power below a power necessary for achieving a super-RENS effect is generated and the location information is retrieved from the super-RENS optical recording medium.

摘要翻译： 用于操作用于从Super-RENS光学记录介质读取或写入的设备的方法，使用这种方法从Super-RENS光学记录介质读取的设备以及适用于这种方法的Super-RENS光学记录介质。 超级RENS光学记录介质具有可读取而不具有超RENS效果的位置信息。 位置信息作为低频信息提供。 为了定位超级RENS光学记录介质上的位置，产生功率低于实现超RENS效果所需的功率的读取光束，并且从超RENS光学记录介质检索位置信息。

公开(公告)号：US20070242326A1

公开(公告)日：2007-10-18

申请号：US11786345

申请日：2007-04-10

申请人： Joachim Knittel ,  Frank Przygodda

发明人： Joachim Knittel ,  Frank Przygodda

IPC分类号： G03H1/04

CPC分类号： G03H1/22 ,  G03H2001/2223 ,  G03H2001/2289 ,  G11B7/0065 ,  G11B7/1374 ,  G11B2007/13727 ,  Y10S359/90

摘要： The present invention relates to a method for compensating for a wavelength mismatch between a readout reference beam and a recording reference beam in a holographic storage system, and to a holographic storage system implementing the method.According to the invention, the wavelength mismatch is determined and the direction of at least part of the readout reference beam relative to a holographic storage medium is adjusted in dependence on the determined wavelength mismatch by defocusing the readout reference beam or by adjusting the focal length of an objective lens for focusing the readout reference beam into the holographic storage medium.

摘要翻译： 本发明涉及一种用于补偿全息存储系统中的读出参考光束和记录参考光束之间的波长不匹配的方法，以及实现该方法的全息存储系统。 根据本发明，确定波长不匹配，并且相对于全息存储介质的读出参考光束的至少一部分的方向根据所确定的波长失配进行调节，通过使读出的参考光束散焦或通过调整读出参考光束的焦距 用于将读出的参考光束聚焦到全息存储介质中的物镜。

公开(公告)号：US08208184B2

公开(公告)日：2012-06-26

申请号：US12587182

申请日：2009-10-02

申请人： Joachim Knittel ,  Frank Przygodda

发明人： Joachim Knittel ,  Frank Przygodda

IPC分类号： G03H1/10 ,  G03H1/12

CPC分类号： G11B7/1381 ,  G03H1/0404 ,  G03H1/12 ,  G03H1/16 ,  G03H2001/0415 ,  G03H2222/35 ,  G11B7/0065 ,  G11B7/127 ,  G11B2007/13727

摘要： A holographic storage system having an improved data page quality is described. The holographic storage system includes a special optical filter or a special light source for emphasizing the high frequency components of a reference beam and/or an object beam. This is achieved by an optical filter arranged in a Fourier plane, which has a higher attenuation at the center than at the edge. Alternatively, an adapted light source for generating the reference beam and/or the object beam is arranged in a Fourier plane. The light beam emitted by the light source has a higher intensity close to the edge than at the center.

摘要翻译： 描述了具有改进的数据页面质量的全息存储系统。 全息存储系统包括专用光学滤波器或用于强调参考光束和/或物体光束的高频分量的专用光源。 这通过布置在傅立叶平面中的滤光器来实现，其在中心处具有比在边缘处更高的衰减。 或者，用于产生参考光束和/或物体光束的适配光源被布置在傅立叶平面中。 由光源发射的光束比靠近中心处的边缘具有更高的强度。