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    Optical memory disc
    1.
    发明授权
    Optical memory disc 失效
    光存储盘

    公开(公告)号：US4634617A

    公开(公告)日：1987-01-06

    申请号：US638674

    申请日：1984-08-08

    申请人： Kenji Ohta ,  Akira Takahashi ,  Tetsuya Inui ,  Takao Hyuga ,  Hideyoshi Yamaoka

    发明人： Kenji Ohta ,  Akira Takahashi ,  Tetsuya Inui ,  Takao Hyuga ,  Hideyoshi Yamaoka

    IPC分类号： G11B7/24 ,  G11B7/26 ,  G11B23/00 ,  B32B3/02

    CPC分类号： G11B7/26 ,  G11B23/0035 ,  G11B7/24

    摘要： Concentric guide grooves are formed on a glass substrate, and recording medium is disposed on the glass substrate having the concentric grooves. A centering device is secured to the glass substrate in a manner that the center of the centering device is positioned at the center of the concentric guide grooves. In a preferred form, photopolymer is disposed between the centering device and the glass substrate as adhesive. The centering device is provided with an aperture through which ultraviolet rays are applyed to the photo-polymer to cure it.

    摘要翻译： 在玻璃基板上形成同心引导槽，在具有同心槽的玻璃基板上配置记录介质。 定心装置以定心装置的中心位于同心引导槽的中心的方式固定到玻璃基板。 在优选形式中，光聚合物作为粘合剂设置在定心装置和玻璃基板之间。 定心装置设置有孔，通过该孔将紫外线施加到光聚合物上以使其固化。

    Optical memory disc
    2.
    发明授权
    Optical memory disc 失效
    光存储盘

    公开(公告)号：US4658393A

    公开(公告)日：1987-04-14

    申请号：US671865

    申请日：1984-11-15

    申请人： Kenji Ohta ,  Akira Takahashi ,  Tetsuya Inui ,  Takao Hyuga ,  Hideyoshi Yamaoka

    发明人： Kenji Ohta ,  Akira Takahashi ,  Tetsuya Inui ,  Takao Hyuga ,  Hideyoshi Yamaoka

    IPC分类号： G11B7/24 ,  G11B7/26 ,  G11B23/00 ,  G11B3/70

    CPC分类号： G11B7/26 ,  G11B23/0035 ,  G11B7/24

    摘要： An optical memory disc includes a glass substrate on which a plurality of concentric circular guide grooves (or a spiral groove) are formed for tracking purposes. A centering plate is secured to the glass substrate in a manner that the center of a circular opening formed in the centering plate is exactly adjusted to the center of the plurality of concentric circular guide grooves (spiral groove). The circular opening formed in the centering plate is utilized to drive the optical memory disc on a turntable. Since the circular opening is not formed directly in the glass substrate, the center adjustment is easily conducted, and there is no possibility that the glass substrate is damaged when the circular opening is formed.

    摘要翻译： 光存储盘包括玻璃基板，其上形成有用于跟踪目的的多个同心圆形导向槽（或螺旋槽）。 中心板以将中心盘中形成的圆形开口的中心精确地调整到多个同心圆形导向槽（螺旋槽）的中心的方式固定到玻璃基板。 在定心板上形成的圆形开口用于驱动旋转台上的光学存储盘。 由于圆形开口不直接形成在玻璃基板中，因此容易进行中心调整，并且在形成圆形开口时玻璃基板不可能被损坏。

    Magneto-optical head assembly with improved detection means
    7.
    发明授权
    Magneto-optical head assembly with improved detection means 失效
    具有改进检测手段的磁光头组件

    公开(公告)号：US4573149A

    公开(公告)日：1986-02-25

    申请号：US437504

    申请日：1982-10-28

    申请人： Toshihisa Deguchi ,  Kenji Ohta ,  Akira Takahashi ,  Hideyoshi Yamaoka

    发明人： Toshihisa Deguchi ,  Kenji Ohta ,  Akira Takahashi ,  Hideyoshi Yamaoka

    IPC分类号： G11B7/08 ,  G11B11/105 ,  H04N1/21 ,  G11B11/00

    CPC分类号： H04N1/2195 ,  G11B11/10532 ,  G11B7/08 ,  H04N1/2175 ,  H04N2201/0084 ,  H04N2201/0089

    摘要： A magneto-optical head assembly for a reflection type magneto-optical memory apparatus uses a laser beam for recording, retrieving, and erasing data on a recording medium comprised of a vertical, magnetic, and anisotropic thin film. The light beam emitted from the head assembly is guided to a fixed position on said recording medium. Included are a light detection apparatus for receiving a control signal, and a separate light detection apparatus for receiving a data signal. A beam splitter, to which has been applied a multicoated thin film dielectric body capable of increasing the Kerr rotation angle of the laser beam reflected from the recording medium, is positioned in the optical system through which the laser beam passes.

    摘要翻译： 用于反射型磁光存储装置的磁光头组件使用激光束在由垂直，磁和各向异性薄膜组成的记录介质上记录，取出和擦除数据。 从头组件发射的光束被引导到所述记录介质上的固定位置。 包括用于接收控制信号的光检测装置和用于接收数据信号的单独的光检测装置。 已经施加有能够增加从记录介质反射的激光束的克尔旋转角度的多层薄膜电介质的分束器位于激光束通过的光学系统中。

    Optical recording element and driving system
    10.
    发明授权
    Optical recording element and driving system 失效
    光学记录元件和驱动系统

    公开(公告)号：US5335220A

    公开(公告)日：1994-08-02

    申请号：US821361

    申请日：1992-01-16

    申请人： Kenji Ohta ,  Tetsuya Inui ,  Hiroyuki Katayama ,  Akira Takahashi ,  Junji Hirokane ,  Yukinori Nishitani ,  Michinobu Mieda ,  Kazuo Van

    发明人： Kenji Ohta ,  Tetsuya Inui ,  Hiroyuki Katayama ,  Akira Takahashi ,  Junji Hirokane ,  Yukinori Nishitani ,  Michinobu Mieda ,  Kazuo Van

    IPC分类号： G11B7/0045 ,  G11B7/013 ,  G11B7/09 ,  G11B7/125 ,  G11B7/24 ,  G11B7/24085 ,  G11B11/105 ,  G11B19/02 ,  G11B3/78

    CPC分类号： G11B7/0045 ,  G11B11/10528 ,  G11B11/10578 ,  G11B11/10595 ,  G11B19/02 ,  G11B7/0938 ,  G11B7/126 ,  G11B7/24 ,  G11B7/24085

    摘要： An optical recording element comprising a recording medium which includes an information recording area formed at every unit in a non-continuous condition, the recording medium further including sample pits disposed at intervals of a fixed distance for providing basic information about the locations of the recording units in same track. Each sample pit comprises a plurality of pits disposed next to the sequence of the recording units so that the spacing between the pits differs from the spacing between the recording units. At least one of the plurality of pits is a long-sized inclined pit which is inclined at an angle in the range of 6.degree. to 80.degree. to a recording track. A driving system for driving the optical recording element for recording information in the non-continuous recording area or erasing information stored therein with a light beam the output of which is varied as required and checking whether said recording or erasing has been correctly performed, within a very short time in which the light beam passes through the non-continuous recording area. By using the optical recording element in combination with its driving system, the processing speed for reducing, erasing and verifying these functions can be greatly improved and the irradiating position of the light beam at every recording unit can be correctly controlled.

    摘要翻译： 一种光记录元件，包括记录介质，该记录介质包括在非连续状态下在每个单元处形成的信息记录区域，所述记录介质还包括以固定距离间隔设置的样品坑，以提供关于记录单元的位置的基本信息 在同一轨道。 每个采样坑包括靠近记录单元序列设置的多个凹坑，使得凹坑之间的间隔与记录单元之间的间隔不同。 多个凹坑中的至少一个是相对于记录轨道以6°至80°的角度倾斜的长尺寸倾斜凹坑。 一种驱动系统，用于驱动用于在非连续记录区域中记录信息的光学记录元件，或者用存储在其中的光束擦除信息，该光束的输出根据需要变化，并且检查是否正确地执行了所述记录或擦除 光束通过非连续记录区域的非常短的时间。 通过与其驱动系统结合使用光学记录元件，可以大大提高用于减少，擦除和验证这些功能的处理速度，并且可以正确地控制每个记录单元处的光束的照射位置。