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307 条记录 (耗时 0.04 秒)

    Readout method and apparatus for optical information medium
    4.
    发明授权
    Readout method and apparatus for optical information medium 有权
    光信息媒体的读出方法和装置

    公开(公告)号：US07016290B2

    公开(公告)日：2006-03-21

    申请号：US10270047

    申请日：2002-10-15

    申请人： Takashi Nakano ,  Hisako Fukuda ,  Junji Tominaga ,  Nobufumi Atoda ,  Takashi Kikukawa

    发明人： Takashi Nakano ,  Hisako Fukuda ,  Junji Tominaga ,  Nobufumi Atoda ,  Takashi Kikukawa

    IPC分类号： G11B7/00

    CPC分类号： B82Y10/00 ,  G11B7/0052 ,  G11B7/135 ,  G11B7/1356 ,  G11B7/24085

    摘要： In an optical information medium comprising an information recording layer having a mark train of marks and spaces, the mark train is read out by scanning it with a laser beam and detecting a light intensity change pattern of reflected laser beam. Provided that the reflected laser beam includes polarized light components which define an angle θ with the mark train, a polarized light component giving θ=0 is x0 component, and a polarized light component giving θ=90° is y0 component, the mark train is read out utilizing at least a light intensity change of x0 component. When pits or recorded marks having a size approximate to or below the resolution limit are read out, the present invention allows high read outputs to be obtained and prevents omission of readout signals.

    摘要翻译： 在包括具有标记和空格的标记列的信息记录层的光学信息介质中，通过用激光束扫描并检测反射的激光束的光强度变化图案来读出标记列。 假设反射的激光束包括与标记列限定角度θ的偏振光分量，则给出θ= 0的偏振光分量是x 0分量，并且给出θ= 90°的偏振光分量 是零分量，则利用至少x 0分量的光强度变化来读出标记列。 当读出尺寸接近或低于分辨率极限的凹坑或记录标记时，本发明允许获得高读取输出并且防止省略读出信号。

    Method and apparatus for reproducing an optical signal
    5.
    发明授权
    Method and apparatus for reproducing an optical signal 失效
    用于再现光信号的方法和装置

    公开(公告)号：US06901036B2

    公开(公告)日：2005-05-31

    申请号：US09942036

    申请日：2001-08-30

    申请人： Junji Tominaga ,  Takashi Nakano ,  Nobufumi Atoda ,  Akira Sato ,  Manami Kuiseko ,  Takashi Kikukawa

    发明人： Junji Tominaga ,  Takashi Nakano ,  Nobufumi Atoda ,  Akira Sato ,  Manami Kuiseko ,  Takashi Kikukawa

    IPC分类号： G11B7/005 ,  G11B7/013 ,  G11B7/13 ,  G11B7/135 ,  G11B7/00

    CPC分类号： G11B7/131 ,  G11B7/1381 ,  G11B7/24085

    摘要： An apparatus for reproducing information stored in an optical recording medium which comprises marks or pits which are arranged at a pitch less than λ/2NA, wherein λ is a wavelength of light used for reproduction and NA is an numerical aperture of an objective lens. The apparatus generally comprises a laser diode, a polarization beam splitter, an objective lens, beam splitters, a low-frequency light detecting system with a photodetector, a high-frequency light detecting system with a photodetector, and a signal processing circuit for combining detection signals from the photodetectors. In the high-frequency light detecting system, before a convergent lens, a shielding band is provided so as to shield the middle of a bundle of rays of reproduction light.

    摘要翻译： 一种用于再现存储在光学记录介质中的信息的装置，包括以小于λ/ 2NA的间距排列的标记或凹坑，其中λ是用于再现的光的波长，NA是物镜的数值孔径。 该装置通常包括激光二极管，偏振分束器，物镜，分束器，具有光电检测器的低频光检测系统，具有光电检测器的高频光检测系统，以及用于组合检测的信号处理电路 来自光电探测器的信号。 在高频光检测系统中，在会聚透镜之前，设置屏蔽带以屏蔽再生光束的中间。

    Photolithographic pattern-forming material and method for formation of fine pattern therwith
    9.
    发明授权
    Photolithographic pattern-forming material and method for formation of fine pattern therwith 失效
    光刻图案形成材料和形成精细图案的方法

    公开(公告)号：US06692894B1

    公开(公告)日：2004-02-17

    申请号：US09651730

    申请日：2000-08-30

    申请人： Takashi Nakano ,  Masashi Kuwahara ,  Junji Tominaga ,  Nobufumi Atoda

    发明人： Takashi Nakano ,  Masashi Kuwahara ,  Junji Tominaga ,  Nobufumi Atoda

    IPC分类号： G03F700

    CPC分类号： G03F7/11 ,  G03F7/2008

    摘要： Disclosed is a photolithographic pattern-forming material capable of giving a fine patterned resist layer rapidly and being used repeatedly. The pattern-forming material is a multilayered body comprising a substrate and a photoresist layer thereon which is overlaid with a three-layered composite film for near-field light generation consisting of an intermediate layer of a non-linear optical material such as antimony sandwiched between two dielectric layers. When irradiated with active rays focused on the optically nonlinear layer, a fine optical window or light scattering point is formed therein where a near-field light is generated to pattern-wise expose the photoresist layer.

    摘要翻译： 公开了一种光刻图案形成材料，其能够快速赋予精细的图案化抗蚀剂层并重复使用。 图案形成材料是包括基板和其上的光致抗蚀剂层的多层体，其上覆盖有用于近场光产生的三层复合膜，由诸如锑之类的非线性光学材料的中间层夹在 两个电介质层。 当聚焦在光学非线性层上的活性射线照射时，在其中形成精细的光学窗口或光散射点，其中产生近场光以图案地曝光光致抗蚀剂层。

    Optical probe array head device
    10.
    发明授权
    Optical probe array head device 失效
    光探头阵列头装置

    公开(公告)号：US06542455B1

    公开(公告)日：2003-04-01

    申请号：US09651731

    申请日：2000-08-30

    申请人： Masashi Kuwahara ,  Takashi Nakano ,  Junji Tominaga ,  Nobufumi Atoda

    发明人： Masashi Kuwahara ,  Takashi Nakano ,  Junji Tominaga ,  Nobufumi Atoda

    IPC分类号： G11B700

    CPC分类号： H01L31/035281 ,  B82Y10/00 ,  G01Q80/00 ,  G11B7/0901 ,  G11B7/0943 ,  G11B7/0956 ,  G11B7/131 ,  G11B7/133 ,  G11B7/1387 ,  G11B7/14 ,  H01L31/02024 ,  H01L31/109 ,  Y02E10/50

    摘要： Provided is an optical probe array head device in which a single optical detector or a plurality of optical detectors are disposed to each of the optical probes constituting an optical probe array having a plurality of apertures. The optical detectors are arranged to surround the aperture so as to be able to efficiently detect scattering of a feeble near-field light enabling similtaneous detection of a multipilicity of optical signals. In this device, an optical lens system necessary for optical detection can be omitted by integrating the optical probe array and the optical detectors. In addition, the output signals from the optical detectors can be utilized for conducting position control of the optical probe array head.

    摘要翻译： 提供了一种光学探针阵列头装置，其中单个光学检测器或多个光学检测器设置在构成具有多个孔的光学探针阵列的每个光学探针中。 光学检测器被布置成围绕孔径，以便能够有效地检测弱视近场光的散射，从而能够进行光信号的多重性的即时检测。 在该装置中，通过集成光学探针阵列和光学检测器，可以省略光学检测所需的光学透镜系统。 此外，来自光学检测器的输出信号可以用于对光学探头阵列头进行位置控制。