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    • 32. 发明专利
    • Vibration detector, hologram device, vibration detection method of vibration detector, and recording method of hologram device
    • 振动检测器,霍尔装置,振动检测器的振动检测方法和霍尔姆装置的记录方法
    • JP2007212221A
    • 2007-08-23
    • JP2006030917
    • 2006-02-08
    • Inphase Technologies IncSanyo Electric Co Ltdインフェイズ テクノロジーズ インコーポレイテッド三洋電機株式会社
    • KOGURE KAZUYACURTIS KEVINANDERSON KEN
    • G01B11/00G03H1/04G03H1/26G11B7/0065G11B7/125G11B7/135
    • G11B7/0065G03H1/0486G11B7/0948
    • PROBLEM TO BE SOLVED: To provide a vibration detector, a hologram device, a vibration detection method of the vibration detector, and a recording method of the hologram device capable of controlling irradiation of a hologram recording medium with a laser beam from a laser device according to a vibration level. SOLUTION: In the hologram device in which a coherent data beam corresponding to data to be recorded and a reference beam are incident on a recording medium and which records the data on the recording medium as a hologram, the hologram device includes a vibration detection beam generation part in which a vibration detection beam for detecting the existence/absence of the vibration having incoherence to the data beam and the reference beam is incident on the recording medium; a light reception determination part determining whether or not the position where the vibration detection beam propagated and emitted after incidence is received is within a prescribed range; and a shielding part for shielding at least one of the data beam and the reference beam incident on the recording medium when the light reception determination part determines that it is not within the prescribed range. COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:提供一种振动检测器,全息图装置,振动检测器的振动检测方法以及能够利用激光束照射全息图记录介质的全息图设备的记录方法 激光装置根据振动级别。 解决方案:在与要记录的数据相关联的相干数据波束和参考光束入射到记录介质上并将数据记录在记录介质上作为全息图的全息装置中,全息装置包括振动 检测光束产生部分,其中用于检测与数据光束不一致的振动的存在/不存在的振动检测光束和参考光束入射到记录介质上; 确定接收到入射后传播和发射的振动检测光束的位置是否在规定范围内的光接收确定部分; 以及屏蔽部分,用于当光接收确定部分确定其不在规定范围内时,屏蔽入射在记录介质上的数据束和参考光束中的至少一个。 版权所有(C)2007,JPO&INPIT
    • 40. 发明专利
    • Holographic memory medium, holographic memory device and holographic recording device
    • 全息记忆媒体,全息记忆装置和全息记录装置
    • JP2007256949A
    • 2007-10-04
    • JP2007063744
    • 2007-03-13
    • Inphase Technologies IncSanyo Electric Co Ltdインフェイズ テクノロジーズ インコーポレイテッド三洋電機株式会社
    • MATSUMURA YOSHIKUNIREDMOND IAN RMALANG KEITH
    • G03H1/26G11B7/004G11B7/0065
    • G11B7/0956G03H2001/0473G11B7/0065G11B7/00772
    • PROBLEM TO BE SOLVED: To suppress a tilt error even when the tilt error is caused in a holographic memory in a direction perpendicular to a surface including optical axes of a signal beam and a reference beam (radial tilt direction).
      SOLUTION: A reference tilt hologram for specifying a reference incident angle in the radial tilt direction is recorded in advance on a holographic memory medium. During recording and reproducing operations, the reference beam is emitted to a recording position of the reference tilt hologram and the reference incident angle (reference angle Sr) of the reference beam in the radial tilt direction is detected based on a received light state. A tilt actuator 19 for displacing the holographic memory medium in the radial tilt direction is driven to adjust an incident angle of the reference beam in the radial tilt direction to the reference angle Sr. Then, the signal beam and the reference beam are emitted to the holographic memory medium to execute the recording and reproducing operations.
      COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:即使当在垂直于包括信号光束和参考光束的光轴的表面的方向(径向倾斜方向)的全息存储器中引起倾斜误差时,也抑制倾斜误差。 解决方案:预先在全息存储介质上记录用于指定径向倾斜方向的参考入射角的参考倾斜全息图。 在记录和再现操作期间,参考光束被发射到参考倾斜全息图的记录位置,并且基于接收到的光状态来检测参考光束在径向倾斜方向上的参考入射角(参考角度Sr)。 驱动用于使全息存储介质沿径向倾斜方向移位的倾斜致动器19,以将参考光束在径向倾斜方向上的入射角度调整为参考角度Sr.然后,将信号光束和参考光束发射到 全息存储介质来执行记录和再现操作。 版权所有(C)2008,JPO&INPIT