Low profile optical head
    1.
    发明授权
    Low profile optical head 失效
    低调光学头

    公开(公告)号:US07227817B1

    公开(公告)日:2007-06-05

    申请号:US09457104

    申请日:1999-12-07

    IPC分类号: G11B7/00

    摘要: An optical head of a type useable in a optical disk reader/writer is provided. The optical head has a low profile, e.g., in a vertical direction parallel to the disk spin axis, such as less than about 5 mm preferably less than about 3 mm. Substantially all components of the optical system, including a laser source, objective lens, intervening optics and photo detector are provided in the optical head and mounted in a fixed position with respect to one another. Substantially all optical components of the optical head are moved as a unit, e.g., during tracking and/or focusing. Preferably, the optical head is fabricated using wafer scale and/or stacking technologies, e.g., stacking substantially planar components to achieve the final optical head configuration.

    摘要翻译: 提供了一种可用于光盘读写器的光头。 光学头具有低轮廓,例如在平行于盘旋转轴线的垂直方向上,例如小于约5mm,优选小于约3mm。 包括激光源,物镜,中间光学元件和光电检测器在内的光学系统的基本上所有部件都设置在光学头中并相对于彼此安装在固定位置。 例如,在跟踪和/或聚焦期间,光学头的基本上所有的光学部件作为一个单元被移动。 优选地,使用晶片刻度和/或堆叠技术制造光学头,例如堆叠基本上平面的部件以实现最终的光学头结构。

    Low profile optical head
    2.
    发明授权
    Low profile optical head 失效
    低调光学头

    公开(公告)号:US06914868B1

    公开(公告)日:2005-07-05

    申请号:US09540657

    申请日:2000-03-31

    IPC分类号: G11B7/00

    摘要: An optical head of a type useable in a optical disk reader/writer is provided. The optical head has a low profile, e.g., in a vertical direction parallel to the disk spin axis, such as less than about 5 mm preferably less than about 3 mm. Substantially all components of the optical system, including a laser source, objective lens, intervening optics and photo detector are provided in the optical head and mounted in a fixed position with respect to one another. Substantially all optical components of the optical head are moved as a unit, e.g., during tracking and/or focusing. Preferably, the optical head is fabricated using wafer scale and/or stacking technologies, e.g., stacking substantially planar components to achieve the final optical head configuration.

    摘要翻译: 提供了一种可用于光盘读写器的光头。 光学头具有低轮廓,例如在平行于盘旋转轴线的垂直方向上,例如小于约5mm,优选小于约3mm。 包括激光源,物镜,中间光学元件和光电检测器在内的光学系统的基本上所有部件都设置在光学头中并相对于彼此安装在固定位置。 例如,在跟踪和/或聚焦期间,光学头的基本上所有的光学部件作为一个单元被移动。 优选地,使用晶片刻度和/或堆叠技术制造光学头,例如堆叠基本上平面的部件以实现最终的光学头结构。

    Beamshaper for optical head
    3.
    发明授权

    公开(公告)号:US07079472B2

    公开(公告)日:2006-07-18

    申请号:US09764026

    申请日:2001-01-16

    IPC分类号: G11B7/135

    摘要: An optical head of a type useable in a optical disk reader/writer is provided. One of the optical elements is provided in a fashion that one or more optical parameters or characteristics of the system are invariant, regardless of whether the one optical element is used, or not. In one embodiment the optical element is a beamshaper. In order to provide the desired invariant property, the surfaces of the optical element are preferably formed with high accuracy. One manner of economically achieving high accuracy is to measure errors or imperfections in a first formed, preferably etched, surface and adjust the shape or position of a second aligned etched surface so as to at least partially compensate for the errors or imperfections.

    Illuminative treatment of holographic media
    5.
    发明申请
    Illuminative treatment of holographic media 审中-公开
    全息介质的照明处理

    公开(公告)号:US20060281021A1

    公开(公告)日:2006-12-14

    申请号:US11440370

    申请日:2006-05-25

    IPC分类号: G03C5/00

    摘要: The present invention relates to embodiments of a process for subjecting a holographic storage medium to illuminative treatment to: (1) enhance or optimize recording of holographic data; (2) enhance or optimize reading of recorded holographic data; and/or (3) erase recorded holographic data. The present invention also relates to embodiments of a system comprising: (a) an illuminative treatment beam; (b) means for reducing the coherence of the beam and (c) means for transmitting the reduced coherence beam to cause illuminative treatment of: (1) an unrecorded portion of a holographic storage medium to provide pre-cured portions having increased ability to stably record holographic data; (2) a recorded portion of a holographic storage medium to provide a post-cured portion having reduced residual sensitivity; and/or (3) a recorded portion of a holographic storage medium having holographic data to provide an erased portion wherein at least some of the recorded holographic data is erased.

    摘要翻译: 本发明涉及对全息存储介质进行照明处理的方法的实施例:(1)增强或优化全息数据的记录; (2)增强或优化记录全息数据的阅读; 和/或(3)擦除所记录的全息数据。 本发明还涉及一种系统的实施例,包括:(a)照明处理光束; (b)用于减小光束的相干性的装置,(c)用于透射减小的相干光束的装置,以引起照明处理:(1)全息存储介质的未记录部分,以提供具有增强的稳定能力的预固化部分 记录全息数据; (2)全息存储介质的记录部分,以提供具有降低的残留灵敏度的后固化部分; 和/或(3)具有全息数据的全息存储介质的记录部分以提供擦除部分,其中记录的全息数据中的至少一些被擦除。

    Erasing holographic media
    7.
    发明申请
    Erasing holographic media 审中-公开
    擦除全息媒体

    公开(公告)号:US20060280096A1

    公开(公告)日:2006-12-14

    申请号:US11440366

    申请日:2006-05-25

    IPC分类号: G11B7/00

    摘要: The present invention relates to embodiments of a process for subjecting a holographic storage medium to illuminative treatment to: (1) enhance or optimize recording of holographic data; (2) enhance or optimize reading of recorded holographic data; and/or (3) erase recorded holographic data. The present invention also relates to embodiments of a system comprising: (a) an illuminative treatment beam; (b) means for reducing the coherence of the beam and (c) means for transmitting the reduced coherence beam to cause illuminative treatment of: (1) an unrecorded portion of a holographic storage medium to provide pre-cured portions having increased ability to stably record holographic data; (2) a recorded portion of a holographic storage medium to provide a post-cured portion having reduced residual sensitivity; and/or (3) a recorded portion of a holographic storage medium having holographic data to provide an erased portion wherein at least some of the recorded holographic data is erased.

    摘要翻译: 本发明涉及对全息存储介质进行照明处理的方法的实施例:(1)增强或优化全息数据的记录; (2)增强或优化记录全息数据的阅读; 和/或(3)擦除所记录的全息数据。 本发明还涉及一种系统的实施例,包括:(a)照明处理光束; (b)用于减小光束的相干性的装置,(c)用于透射减小的相干光束的装置,以引起照明处理:(1)全息存储介质的未记录部分,以提供具有增强的稳定能力的预固化部分 记录全息数据; (2)全息存储介质的记录部分,以提供具有降低的残留灵敏度的后固化部分; 和/或(3)具有全息数据的全息存储介质的记录部分以提供擦除部分,其中记录的全息数据中的至少一些被擦除。

    Stabilizing holographic disk medium against vibrations and/or controlling deflection of disk medium
    8.
    发明申请
    Stabilizing holographic disk medium against vibrations and/or controlling deflection of disk medium 审中-公开
    稳定全息光盘介质抵抗振动和/或控制盘介质的偏转

    公开(公告)号:US20070242589A1

    公开(公告)日:2007-10-18

    申请号:US11402837

    申请日:2006-04-13

    IPC分类号: G11B7/00

    摘要: The present invention relates to: stabilizing a holographic disk medium against vibrations by engaging at least one of surface of a disk medium when coupled to a disk medium coupler and during recording or reading holograms to or from the disk; stabilizing the disk medium proximate the outer peripheral portion thereof, coupling and uncoupling the disk medium to and from the disk medium coupler and causing the stabilizing means to engage the disk medium when coupled to the disk medium coupler; imparting an axial offset proximate the peripheral portion to deflect a record and/or read portion of the disk medium towards a normal record and/or read plane when coupled to the disk medium coupler, and optionally stabilizing the disk medium against vibrations; and stabilizing the disk medium against vibrations when rotatably mounted on or within a data storage cartridge.

    摘要翻译: 本发明涉及:通过在耦合到盘介质耦合器时以及在将全息图记录到盘或从盘中记录或读取全息图时,通过接合盘介质的表面中的至少一个而使全息光盘介质抵抗振动; 稳定靠近其外围部分的磁盘介质,将磁盘介质耦合到磁盘介质耦合器并从磁盘介质耦合器解耦,并且当耦合到磁盘介质耦合器时使稳定装置接合磁盘介质; 当耦合到盘介质耦合器时,赋予靠近周边部分的轴向偏移以偏转盘介质的记录和/或读取部分朝向正常记录和/或读平面,并且可选地稳定盘介质以抵抗振动; 并且当可旋转地安装在数据存储盒上或内部时稳定盘介质免受振动。

    Holographic memory medium, holographic memory device and holographic recording device
    9.
    发明申请
    Holographic memory medium, holographic memory device and holographic recording device 失效
    全息存储介质,全息存储器和全息记录装置

    公开(公告)号:US20070216981A1

    公开(公告)日:2007-09-20

    申请号:US11378395

    申请日:2006-03-20

    IPC分类号: G03H1/28

    摘要: Even when a 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), the signal beam and the reference beam are allowed to enter the holographic memory at adequate angles relative thereto at all times by suppression of the tilt error. A reference tilt hologram for specifying a reference incident angle of the reference beam in a 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.

    摘要翻译: 即使当在垂直于包括信号光束和参考光束(径向倾斜方向)的光轴的表面的方向上在全息存储器中引起倾斜误差时,信号光束和参考光束被允许进入全息存储器 通过抑制倾斜误差始终相对于其有足够的角度。 用于在径向倾斜方向上指定参考光束的参考入射角的参考倾斜全息图被预先记录在全息存储介质上。 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)。 驱动用于沿径向倾斜方向移动全息存储介质的倾斜致动器(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,发射信号光束和参考光束 到全息存储介质以执行记录和再现操作。

    Optical delay line in holographic drive
    10.
    发明申请
    Optical delay line in holographic drive 审中-公开
    光学延迟线在全息驱动

    公开(公告)号:US20060291022A1

    公开(公告)日:2006-12-28

    申请号:US11440358

    申请日:2006-05-25

    IPC分类号: G02B5/32

    摘要: The present invention relates to a system comprising a holographic data storage drive that records holographic digital data in a holographic recording medium, and which comprises: a data beam path having a first optical path length; and a reference beam path having a second optical path length; wherein one of the data beam and reference beams paths comprise an optical delay line so that the difference between the first and second optical path lengths is less than the laser coherence length. The present invention further relates to a method for operating a laser in the holographic data storage drive in a multi-mode state during the recording of holographic digital data the holographic medium without adverse effects on the strength of the interference patterns formed.

    摘要翻译: 本发明涉及一种包括在全息记录介质中记录全息数字数据的全息数据存储驱动器的系统,包括:具有第一光程长度的数据光束路径; 以及具有第二光路长度的参考光束路径; 其中数据束和参考光束路径中的一个包括光学延迟线,使得第一和第二光路长度之间的差小于激光相干长度。 本发明还涉及一种用于在全息数据数据记录全息介质期间在多模态下在全息数据存储驱动器中操作激光的方法,而对所形成的干涉图案的强度没有不利影响。