OPTICAL PICKUP, OPTICAL INFORMATION RECORDING AND REPRODUCING APPARATUS AND METHOD FOR OPTICALLY RECORDING AND REPRODUCING INFORMATION
    1.
    发明申请
    OPTICAL PICKUP, OPTICAL INFORMATION RECORDING AND REPRODUCING APPARATUS AND METHOD FOR OPTICALLY RECORDING AND REPRODUCING INFORMATION 有权
    光学拾取,光学信息记录和再现设备以及用于光学记录和再现信息的方法

    公开(公告)号:US20080219128A1

    公开(公告)日:2008-09-11

    申请号:US12038174

    申请日:2008-02-27

    IPC分类号: G11B7/00

    摘要: An optical pickup for recording a hologram by using an angle multiplexing method. An optical beam is separated into two beams, a signal beam and a reference beam having different convergence/divergence degrees, by using an optical component such as a diffraction lens. The signal and reference beams are made incident upon the same objective, and the optical component or the objective lens is moved in a direction perpendicular to an optical axis, to thereby realize angle multiplex recording. If an optical information recording medium is inclined, the optical component or the objective lens is moved along the direction along which the optical information recording medium moved to change an angle of the reference beam incident upon the optical information recording medium and compensate for degradation of a reproduction signal.

    摘要翻译: 一种用于通过使用角度复用方法记录全息图的光学拾取器。 通过使用诸如衍射透镜的光学部件,将光束分离成两束,信号光束和具有不同会聚/发散度的参考光束。 信号和参考光束入射到相同的物镜上,并且光学部件或物镜在垂直于光轴的方向上移动,从而实现角度多路复用记录。 如果光学信息记录介质倾斜,则光学部件或物镜沿着光学信息记录介质移动的方向移动以改变入射在光学信息记录介质上的参考光束的角度并补偿光学信息记录介质的劣化 再现信号。

    Optical pickup, optical information recording and reproducing apparatus and method for optically recording and reproducing information
    2.
    发明授权
    Optical pickup, optical information recording and reproducing apparatus and method for optically recording and reproducing information 有权
    用于光学记录和再现信息的光学拾取器,光学信息记录和再现装置和方法

    公开(公告)号:US08004950B2

    公开(公告)日:2011-08-23

    申请号:US12038174

    申请日:2008-02-27

    IPC分类号: G11B7/00

    摘要: An optical pickup for recording a hologram by using an angle multiplexing method. An optical beam is separated into two beams, a signal beam and a reference beam having different convergence/divergence degrees, by using an optical component such as a diffraction lens. The signal and reference beams are made incident upon the same objective, and the optical component or the objective lens is moved in a direction perpendicular to an optical axis, to thereby realize angle multiplex recording. If an optical information recording medium is inclined, the optical component or the objective lens is moved along the direction along which the optical information recording medium moved to change an angle of the reference beam incident upon the optical information recording medium and compensate for degradation of a reproduction signal.

    摘要翻译: 一种用于通过使用角度复用方法记录全息图的光学拾取器。 通过使用诸如衍射透镜的光学部件,将光束分离成两束,信号光束和具有不同会聚/发散度的参考光束。 信号和参考光束入射到相同的物镜上,并且光学部件或物镜在垂直于光轴的方向上移动,从而实现角度多路复用记录。 如果光学信息记录介质倾斜,则光学部件或物镜沿着光学信息记录介质移动的方向移动以改变入射在光学信息记录介质上的参考光束的角度并补偿光学信息记录介质的劣化 再现信号。

    OPTICAL INFORMATION RECORDING MEDIUM, OPTICAL INFORMATION RECORDING/REPRODUCING DEVICE AND OPTICAL INFORMATION RECORDING/REPRODUCING METHOD
    3.
    发明申请
    OPTICAL INFORMATION RECORDING MEDIUM, OPTICAL INFORMATION RECORDING/REPRODUCING DEVICE AND OPTICAL INFORMATION RECORDING/REPRODUCING METHOD 有权
    光信息记录介质,光信息记录/再现设备和光信息记录/再现方法

    公开(公告)号:US20100271921A1

    公开(公告)日:2010-10-28

    申请号:US12680612

    申请日:2008-08-06

    IPC分类号: G11B7/00

    摘要: A holographic recording medium in which information can be reproduced by phase conjugate beam without requiring a mirror for obtaining the phase conjugate beam and its driving part and recording density is not reduced. The recording medium includes a recording layer in which an interference pattern is recorded and a light absorption/transmission layer which can be reversibly changed to be in a first state where signal beam and reference beam passed through the recording layer are absorbed at the time of recording of information and a second state where the reference beam is transmitted at the time of reproduction of information, and the reference beam transmitted through the light absorption/transmission layer is reflected by a reflection layer to produce the phase conjugate beam.

    摘要翻译: 可以通过相位共轭光再现信息的全息记录介质,而不需要用于获得相位共轭光束的反射镜及其驱动部分和记录密度。 记录介质包括其中记录有干涉图案的记录层和可以可逆地改变为在记录时吸收信号束和参考光束通过记录层的第一状态的光吸收/透射层 的信息和在再现信息时发送参考光束的第二状态,并且通过光吸收/透射层透射的参考光束被反射层反射以产生相位共轭光束。

    OPTICAL INFORMATION STORAGE APPARATUS AND OPTICAL RECORDING MEDIUM
    4.
    发明申请
    OPTICAL INFORMATION STORAGE APPARATUS AND OPTICAL RECORDING MEDIUM 审中-公开
    光学信息存储设备和光学记录介质

    公开(公告)号:US20080170479A1

    公开(公告)日:2008-07-17

    申请号:US11829121

    申请日:2007-07-27

    IPC分类号: G11B7/00

    摘要: In an information recording apparatus using a hologram, a signal area of the light flux to be recorded is secured to be as wide as possible and the optical power loss is depressed during reproduction process. For this reason, almost the entire surface of the spatial light modulator is allocated as a signal area and the reference beam is collected on a micro mirror placed on its optical axis.

    摘要翻译: 在使用全息图的信息记录装置中,要记录的光束的信号区域被确保为尽可能宽并且在再现处理期间光功率损失被抑制。 为此,将空间光调制器的整个表面几乎分配为信号区域,并将参考光束收集在放置在其光轴上的微镜上。

    Optical information recording medium, optical information recording/reproducing device and optical information recording/reproducing method
    5.
    发明授权
    Optical information recording medium, optical information recording/reproducing device and optical information recording/reproducing method 有权
    光信息记录介质,光信息记录/再现装置和光信息记录/再现方法

    公开(公告)号:US08699310B2

    公开(公告)日:2014-04-15

    申请号:US12680612

    申请日:2008-08-06

    IPC分类号: G11B7/0065

    摘要: A holographic recording medium in which information can be reproduced by phase conjugate beam without requiring a mirror for obtaining the phase conjugate beam and its driving part and recording density is not reduced. The recording medium includes a recording layer in which an interference pattern is recorded and a light absorption/transmission layer which can be reversibly changed to be in a first state where signal beam and reference beam passed through the recording layer are absorbed at the time of recording of information and a second state where the reference beam is transmitted at the time of reproduction of information, and the reference beam transmitted through the light absorption/transmission layer is reflected by a reflection layer to produce the phase conjugate beam.

    摘要翻译: 可以通过相位共轭光再现信息的全息记录介质,而不需要用于获得相位共轭光束的反射镜及其驱动部分和记录密度。 记录介质包括其中记录有干涉图案的记录层和可以可逆地改变为在记录时吸收信号束和参考光束通过记录层的第一状态的光吸收/透射层 的信息和在再现信息时发送参考光束的第二状态,并且通过光吸收/透射层透射的参考光束被反射层反射以产生相位共轭光束。

    Optical pickup device
    6.
    发明申请
    Optical pickup device 审中-公开
    光学拾取装置

    公开(公告)号:US20060262702A1

    公开(公告)日:2006-11-23

    申请号:US11329142

    申请日:2006-01-11

    IPC分类号: G11B7/135

    摘要: The compatible type optical pickup device is capable of recording and reproducing optical disks in different disk substrate thickness such as BD and HD DVD or the like. In more detail, an optical pickup can record and reproduce the media of two or more kinds in different substrate thickness using almost identical wavelength or the identical laser source. One is provided as the infinite type optical system and the other is provided as the finite type optical system using an expander lens. Accordingly, the optical disks of different substrate thickness such as BD and HD DVD can be recorded and reproduced with compatibility using the identical wavelength of light.

    摘要翻译: 兼容型光学拾取装置能够记录和再现不同盘片厚度的光盘,例如BD和HD DVD等。 更详细地,光学拾取器可以使用几乎相同的波长或相同的激光源来记录和再现不同衬底厚度的两种或更多种介质。 提供一种作为无限型光学系统,另一种被提供为使用扩展器透镜的有限型光学系统。 因此,可以使用相同的光波长以兼容性来记录和再现BD和HD DVD等不同基板厚度的光盘。

    Optical disc drive apparatus, information reproducing or recording method
    7.
    发明申请
    Optical disc drive apparatus, information reproducing or recording method 失效
    光盘驱动装置,信息再现或记录方法

    公开(公告)号:US20050226111A1

    公开(公告)日:2005-10-13

    申请号:US10914194

    申请日:2004-08-10

    CPC分类号: G11B7/1353 G11B7/13927

    摘要: Disclosed here is a method for solving a conventional problem that no spherical aberration signal can be detected from any push-pull signal that is easy to adjust an object photodetector when a differential push-pull signal is obtained. To achieve the above object, sub-beams used to detect a differential push-pull signal are defocused from the main beam and spherical aberration signals are detected and the compensation of the spherical aberration is started while tracking controlling is off and detection of spherical aberration signals is held while the tracking controlling is on. The present invention can thus obtain both of the spherical aberration signal and the differential push-pull signal at the same time with use of the conventional detection system.

    摘要翻译: 这里公开了一种解决传统问题的方法,即当获得差分推挽信号时,任何容易调整物体光电检测器的推挽信号都不能检测到球面像差信号。 为了实现上述目的,用于检测差分推挽信号的子光束与主光束散焦,并且检测球面像差信号,并且在跟踪控制关闭并且检测球面像差信号时开始球面像差的补偿 在跟踪控制开启时保持。 因此,本发明可以使用传统的检测系统同时获得球面像差信号和差分推挽信号两者。

    Optical Information Recording and Reproducing Device
    8.
    发明申请
    Optical Information Recording and Reproducing Device 有权
    光信息记录和再现设备

    公开(公告)号:US20090080313A1

    公开(公告)日:2009-03-26

    申请号:US12116245

    申请日:2008-05-07

    IPC分类号: G11B7/00

    摘要: The optical information recording and reproducing device utilizing holography requires the optical system to generate the signal beam and the reference beam to be irradiated to the holographic storage medium as well as another optical system to generate the curing light beam to be irradiated to the holographic storage medium. Furthermore, from the viewpoint of backward compatibility, if the same device is used for recording or reproduction on the conventional optical discs represented by Blu-ray Disc, another optical system adaptable to recording and reproduction on these optical disks is required. This means the optical system configurations become complicated and larger in size. One solution for downsizing is to use the reference beam also as the curing light beam. Another way is sharing of optical path for curing light beam and for the reference beam. Furthermore, it is possible to share the light source for generating the curing light beam and for generating the recording or reproducing light beam. In such way, optical system configurations become simple.

    摘要翻译: 利用全息术的光学信息记录和再现装置需要光学系统产生要照射到全息存储介质的信号光束和参考光束以及另一个光学系统,以产生照射到全息存储介质的固化光束 。 此外,从向后兼容性的观点出发,如果在由蓝光光盘所表示的传统光盘上使用相同的设备进行记录或再现,则需要在这些光盘上适用于记录和再现的另一光学系统。 这意味着光学系统的配置变得复杂并且尺寸更大。 用于小型化的一个解决方案是使用参考光束也作为固化光束。 另一种方式是共享用于固化光束和参考光束的光路。 此外,可以共享用于产生固化光束的光源和用于产生记录或再现光束。 以这种方式,光学系统配置变得简单。