公开(公告)号：US07218597B2

公开(公告)日：2007-05-15

申请号：US10778311

申请日：2004-02-17

申请人： Shin Yasuda ,  Katsunori Kawano ,  Jiro Minabe ,  Tatsuya Maruyama ,  Norie Matsui

发明人： Shin Yasuda ,  Katsunori Kawano ,  Jiro Minabe ,  Tatsuya Maruyama ,  Norie Matsui

IPC分类号： G11B7/00

CPC分类号： G03H1/0248 ,  G03H1/0486 ,  G03H1/265 ,  G03H1/28 ,  G03H2240/50 ,  G11B7/0065 ,  G11B7/00772 ,  G11B7/245 ,  G11B7/2467

摘要： In the disclosed holographic recording method, when multiplex recording of data of a plurality of pages is performed, exposure time of a hologram of a final page to be recorded is fixed irrespective of a degree of multiplicity while an exposure time of each page is changed and diffraction efficiencies of the holograms of the plurality of pages becomes equal.

摘要翻译： 在所公开的全息记录方法中，当执行多页数据的多路记录时，要记录的最终页的全息图的曝光时间是固定的，而不管多页的曝光时间如何变化， 多页的全息图的衍射效率相等。

公开(公告)号：US07064875B2

公开(公告)日：2006-06-20

申请号：US10660485

申请日：2003-09-12

申请人： Katsunori Kawano ,  Jiro Minabe ,  Tatsuya Maruyama ,  Shin Yasuda ,  Norie Matsui ,  Tsutomu Ishii ,  Kazuhiro Hama

发明人： Katsunori Kawano ,  Jiro Minabe ,  Tatsuya Maruyama ,  Shin Yasuda ,  Norie Matsui ,  Tsutomu Ishii ,  Kazuhiro Hama

IPC分类号： G03H1/12

CPC分类号： G11B7/245 ,  G03H2222/31 ,  G11B7/0065 ,  G11B7/128 ,  G11B7/1353 ,  G11B7/1356 ,  G11B7/1369 ,  G11B7/2467 ,  G11B7/25 ,  G11B7/2531 ,  G11B7/2533 ,  G11B7/2534 ,  G11B7/2535

摘要： An optical recording/reproducing apparatus having excellent resistance against vibration and noise is provided. In recording, coherent light is polarization-modulated with a spatial light modulator to generate signal light and reference light whose polarization directions are crossed at right angles with each other. The signal light permeates a polarizing beam splitter, and is incident to a quarter wavelength plate. The reference light passes through a passing hole, is diffused by a light diffuser and is incident to the quarter wavelength plate. The reference and signal light are converted into circularly polarized light which revolve in directions opposite to each other and condensed by a condenser lens, and then a predetermined area of an optical recording medium is irradiated with the reference and signal light. Thus, the reference and signal light are generated by modulating the incident light from the same light source and are coaxially incident to the polarizing beam splitter.

摘要翻译： 提供具有优异的抗振动和噪声的光学记录/重放装置。 在记录中，相干光利用空间光调制器进行偏振调制，以产生信号光和偏振方向相互交叉的参考光。 信号光透过偏振分束器，并入射到四分之一波长板上。 参考光通过通孔，被光扩散器扩散并入射到四分之一波长板。 参考信号光和信号光被转换为以相反方向旋转并由聚光透镜聚光的圆偏振光，然后用参考信号光照射光记录介质的预定区域。 因此，通过调制来自相同光源的入射光并同轴地入射到偏振分束器来产生参考信号光和信号光。

公开(公告)号：US06909684B2

公开(公告)日：2005-06-21

申请号：US10011710

申请日：2001-12-11

申请人： Katsunori Kawano ,  Jiro Minabe ,  Masaaki Shimizu ,  Tatsuya Maruyama ,  Shin Yasuda

发明人： Katsunori Kawano ,  Jiro Minabe ,  Masaaki Shimizu ,  Tatsuya Maruyama ,  Shin Yasuda

IPC分类号： G11B7/0065 ,  G11B7/125 ,  G11B7/24 ,  G11B7/25 ,  G11B7/00

CPC分类号： G11B7/128 ,  G11B7/0065 ,  G11B7/24 ,  G11B7/25

摘要： A holographic recording and/or retrieval method and apparatus are provided. An optical recording medium is used which has a recording layer, formed on a surface of a transparent substrate, through which light having an incident angle of a predetermined value or more with respect to the surface is guided, and which changes a refractive index or absorption coefficient upon simultaneous irradiation of signal light of a predetermined wavelength and reference light, and can record holograms by holding the changed refractive index or absorption coefficient. During recording, a hologram is recorded by simultaneously irradiating the recording layer with signal light of predetermined wavelength and reference light. During retrieval, reading light of wavelength that does not change a refractive index or absorption coefficient of the recording layer is guided through the recording layer, and a hologram is retrieved by diffracted light produced when the reading light is guided through the recording layer.

摘要翻译： 提供全息记录和/或检索方法和装置。 使用具有记录层的光学记录介质，该记录层形成在透明基板的表面上，通过该记录层具有相对于表面的预定值或更大的入射角的光，并且其改变折射率或吸收 同时照射预定波长的信号光和参考光，并且可以通过保持改变的折射率或吸收系数来记录全息图。 在记录期间，通过用预定波长的信号光和参考光同时照射记录层来记录全息图。 在检索期间，读取不改变记录层的折射率或吸收系数的波长的光被引导通过记录层，并且当读取光被引导通过记录层时产生的衍射光引起全息图。

公开(公告)号：US20050041270A1

公开(公告)日：2005-02-24

申请号：US10799659

申请日：2004-03-15

申请人： Shin Yasuda ,  Katsunori Kawano ,  Jiro Minabe ,  Tatsuya Maruyama ,  Norie Matsui

发明人： Shin Yasuda ,  Katsunori Kawano ,  Jiro Minabe ,  Tatsuya Maruyama ,  Norie Matsui

IPC分类号： G03H1/04 ,  G03H1/26 ,  G11B7/00 ,  G11B7/0065 ,  G11B7/245 ,  G11C13/04 ,  G03H1/00

CPC分类号： G11B7/245 ,  G03H1/26 ,  G03H2260/35 ,  G11B7/0065 ,  G11B7/00772 ,  G11B7/083 ,  G11B7/28 ,  G11B2007/0009 ,  G11C13/042

摘要： Information recorded as a hologram in a predetermined position of an optical recording medium is reproduced, and subsequently the reproduced information is re-recorded and retained in the same position as the predetermined position as a hologram. Alternatively, information recorded as a hologram in a predetermined position of an optical recording medium is reproduced, and subsequently the reproduced information is re-recorded and retained in a position different from the predetermined position as a hologram easily.

摘要翻译： 在光记录介质的预定位置记录为全息图的信息被再现，并且随后将再现信息重新记录并保持在与作为全息图的预定位置相同的位置。 或者，再现在光学记录介质的预定位置记录为全息图的信息，并且随后将再现的信息重新记录并保持在与预定位置不同的位置作为全息图。

公开(公告)号：US20050012971A1

公开(公告)日：2005-01-20

申请号：US10782903

申请日：2004-02-23

申请人： Katsunori Kawano ,  Jiro Minabe ,  Shin Yasuda ,  Tatsuya Maruyama ,  Norie Matsui

发明人： Katsunori Kawano ,  Jiro Minabe ,  Shin Yasuda ,  Tatsuya Maruyama ,  Norie Matsui

IPC分类号： G03H1/04 ,  G03H1/10 ,  G03H1/16 ,  G03H1/26 ,  G11B7/00 ,  G11B7/0045 ,  G11B7/0065

CPC分类号： G02B27/0944 ,  G03H1/04 ,  G03H1/10 ,  G03H1/16 ,  G03H1/26 ,  G11B7/0065 ,  G11B2007/0009 ,  Y10S359/90

摘要： A hologram is recorded by irradiating, with a reference light beam, a region corresponding to an intensity distribution of a signal light beam on an optical recording medium. For example, the reference light beam having the intensity distribution which substantially coincides with the intensity distribution of the signal light beam is generated, and only the region which substantially coincides with the region irradiated by the signal light beam (i.e., the signal light beam defocused region) is irradiated with the reference light beam. This enables only the necessary region to be exposed and the regions which need not be exposed not to be exposed. Accordingly, the hologram can be recorded without losing information of the signal light beam and thus high-density recording can be realized.

摘要翻译： 通过用参考光束照射与光学记录介质上的信号光束的强度分布相对应的区域来记录全息图。 例如，具有与信号光束的强度分布基本一致的强度分布的参考光束被产生，并且仅仅与由信号光束照射的区域（即，信号光束散焦 区域）照射参考光束。 这使得只有必要的区域被暴露，并且不需要暴露的区域不被暴露。 因此，可以在不损失信号光束的信息的情况下记录全息图，从而可以实现高密度记录。

公开(公告)号：US07666473B2

公开(公告)日：2010-02-23

申请号：US11291912

申请日：2005-12-02

申请人： Matsui Norie ,  Katsunori Kawano ,  Jiro Minabe ,  Tatsuya Maruyama ,  Shin Yasuda ,  Kazuhiro Hama ,  Tsutomu Ishii

发明人： Matsui Norie ,  Katsunori Kawano ,  Jiro Minabe ,  Tatsuya Maruyama ,  Shin Yasuda ,  Kazuhiro Hama ,  Tsutomu Ishii

IPC分类号： B05D3/12 ,  B05D1/38

CPC分类号： G11B7/266 ,  G03H2001/0264 ,  G03H2001/2615 ,  G03H2260/12 ,  G11B7/245 ,  G11B2007/0009 ,  G11B2007/0013 ,  Y10S359/90

摘要： The present invention relates to a method for producing an optical recording medium. In the method, on the surface of a recording layer formed by spin-coating a first coating solution containing a photo-isomerizable component, a second coating solution that contains a photo-isomerizable component that can be isomerized by radiation having the same wavelength as radiation used for isomerizing the photo-isomerizable component contained in the recording layer and incapable of dissolving the recording layer is spin-coated to form an intermediate layer. Since the intermediate layer thus formed cannot be dissolved by the first coating solution, a recording layer is further laminated on this layer. Thus, it becomes possible to make the recording layer thicker and also to provide a high-density recording characteristic.

摘要翻译： 本发明涉及一种光记录介质的制造方法。 在该方法中，在通过旋涂含有光可异构化组分的第一涂布溶液形成的记录层的表面上，含有可通过与辐射相同波长的辐射异构化的光可异构化组分的第二涂层溶液 用于异构化包含在记录层中并且不能溶解记录层的光可异构化组分被旋涂以形成中间层。 由于如此形成的中间层不能被第一涂布溶液溶解，所以在该层上进一步层压记录层。 因此，可以使记录层更厚并且还提供高密度记录特性。

公开(公告)号：US07426168B2

公开(公告)日：2008-09-16

申请号：US10782758

申请日：2004-02-23

申请人： Katsunori Kawano ,  Jiro Minabe ,  Shin Yasuda ,  Tatsuya Maruyama ,  Norie Matsui

发明人： Katsunori Kawano ,  Jiro Minabe ,  Shin Yasuda ,  Tatsuya Maruyama ,  Norie Matsui

IPC分类号： G11B7/00

CPC分类号： G11B7/0055 ,  G11B7/0065

摘要： The present invention discloses a hologram erasing method, in which a predetermined hologram is erased by irradiating a predetermined region of a hologram recording medium in which the hologram to be erased is recorded with a reference light beam and a signal light beam holding a random data pattern at the same time. In this method, the signal light beam and the reference light beam interfere with each other in the medium, and a Fourier transform hologram recorded in the region where the interference occurs is destroyed and erased by interference light beam. That is, a data page for erasing including a random pattern is overwritten to erase an original data page. According to the present invention, the hologram recorded in the optical recording medium can be selectively and completely erased in a simple method.

摘要翻译： 本发明公开了一种全息擦除方法，其中通过用参考光束照射其中记录要擦除的全息图的全息图记录介质的预定区域和保持随机数据图案的信号光束来擦除预定的全息图 与此同时。 在这种方法中，信号光束和参考光束在介质中彼此干涉，并且记录在发生干涉的区域中的傅立叶变换全息图被干涉光束破坏并被擦除。 也就是说，覆盖包括随机模式的用于擦除的数据页被覆盖以擦除原始数据页。 根据本发明，记录在光学记录介质中的全息图可以以简单的方法被选择性地和完全地擦除。

公开(公告)号：US07034970B2

公开(公告)日：2006-04-25

申请号：US10657147

申请日：2003-09-09

申请人： Norie Matsui ,  Katsunori Kawano ,  Jiro Minabe ,  Tatsuya Maruyama ,  Shin Yasuda ,  Kazuhiro Hama ,  Tsutomu Ishii

发明人： Norie Matsui ,  Katsunori Kawano ,  Jiro Minabe ,  Tatsuya Maruyama ,  Shin Yasuda ,  Kazuhiro Hama ,  Tsutomu Ishii

IPC分类号： G03H1/04

CPC分类号： G11B7/266 ,  G03H2001/0264 ,  G03H2001/2615 ,  G03H2260/12 ,  G11B7/245 ,  G11B2007/0009 ,  G11B2007/0013 ,  Y10S359/90

摘要： The present invention relates to a method for producing an optical recording medium. In the method, on the surface of a recording layer formed by spin-coating a first coating solution containing a photo-isomerizable component, a second coating solution that contains a photo-isomerizable component that can be isomerized by radiation having the same wavelength as radiation used for isomerizing the photo-isomerizable component contained in the recording layer and incapable of dissolving the recording layer is spin-coated to form an intermediate layer. Since the intermediate layer thus formed cannot be dissolved by the first coating solution, a recording layer is further laminated on this layer. Thus, it becomes possible to make the recording layer thicker and also to provide a high-density recording characteristic.

摘要翻译： 本发明涉及一种光记录介质的制造方法。 在该方法中，在通过旋涂含有光可异构化组分的第一涂布溶液形成的记录层的表面上，含有可通过与辐射相同波长的辐射异构化的光可异构化组分的第二涂层溶液 用于异构化包含在记录层中并且不能溶解记录层的光可异构化组分被旋涂以形成中间层。 由于如此形成的中间层不能被第一涂布溶液溶解，所以在该层上进一步层压记录层。 因此，可以使记录层更厚并且还提供高密度记录特性。

公开(公告)号：US06914234B2

公开(公告)日：2005-07-05

申请号：US10233438

申请日：2002-09-04

申请人： Shin Yasuda ,  Katsunori Kawano ,  Jiro Minabe ,  Tatsuya Maruyama ,  Masaaki Shimizu

发明人： Shin Yasuda ,  Katsunori Kawano ,  Jiro Minabe ,  Tatsuya Maruyama ,  Masaaki Shimizu

IPC分类号： G01D5/36 ,  G01D5/30 ,  G01D5/347 ,  G02B27/28 ,  G01D5/34

CPC分类号： G01D5/34715

摘要： Laser light output from a laser light source is irradiated onto a transmission-type scale. Due to movement of the transmission-type scale, a polarization angle of transmitted light varies in accordance with variations in orientations of half-wave plates arrayed in a longitudinal direction. It is difficult for the polarization angle to be affected by noise factors such as external light or the like. Light intensity of a polarized light component, which is transmitted through an analyzer and detected at a photo-detector, varies in accordance with the polarization angle. Thus, the light intensity varies as the transmission-type scale moves, and a detection signal is output to a movement amount computing device. When an amount of movement is computed on the basis of the signal, the exact amount of movement can be detected.

摘要翻译： 从激光光源输出的激光照射到透射型标尺上。 由于透射型刻度的移动，透射光的偏振角根据沿纵向方向排列的半波片的取向的变化而变化。 偏振角难以受到诸如外部光等的噪声因素的影响。 通过分析仪透射并在光检测器处检测的偏振光分量的光强度根据偏振角而变化。 因此，光强度随着透射型标尺移动而变化，并且检测信号被输出到移动量计算装置。 当基于该信号计算移动量时，可以检测精确的移动量。

公开(公告)号：US20050013231A1

公开(公告)日：2005-01-20

申请号：US10782758

申请日：2004-02-23

申请人： Katsunori Kawano ,  Jiro Minabe ,  Shin Yasuda ,  Tatsuya Maruyama ,  Norie Matsui

发明人： Katsunori Kawano ,  Jiro Minabe ,  Shin Yasuda ,  Tatsuya Maruyama ,  Norie Matsui

IPC分类号： G03H1/02 ,  G03H1/26 ,  G11B7/00 ,  G11B7/0055 ,  G11B7/0065 ,  G11B7/135

CPC分类号： G11B7/0055 ,  G11B7/0065

摘要： The present invention discloses a hologram erasing method, in which a predetermined hologram is erased by irradiating a predetermined region of a hologram recording medium in which the hologram to be erased is recorded with a reference light beam and a signal light beam holding a random data pattern at the same time. In this method, the signal light beam and the reference light beam interfere with each other in the medium, and a Fourier transform hologram recorded in the region where the interference occurs is destroyed and erased by interference light beam. That is, a data page for erasing including a random pattern is overwritten to erase an original data page. According to the present invention, the hologram recorded in the optical recording medium can be selectively and completely erased in a simple method.

摘要翻译： 本发明公开了一种全息擦除方法，其中通过用参考光束照射要记录要被擦除的全息图的全息图记录介质的预定区域和保持随机数据图案的信号光束来擦除预定全息图 与此同时。 在这种方法中，信号光束和参考光束在介质中彼此干涉，并且记录在发生干涉的区域中的傅立叶变换全息图被干涉光束破坏并被擦除。 也就是说，覆盖包括随机模式的用于擦除的数据页被覆盖以擦除原始数据页。 根据本发明，记录在光学记录介质中的全息图可以以简单的方法被选择性地和完全地擦除。