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。

公开(公告)号：US06835924B2

公开(公告)日：2004-12-28

申请号：US10229040

申请日：2002-08-28

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

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

IPC分类号： G01D534

CPC分类号： G01D5/38

摘要： Laser light emitted from a laser light source is irradiated onto a transmission-type scale, and is diffracted by a polarization hologram recorded on the transmission-type scale. Only polarization directions of ±1-order diffracted lights, among diffracted lights, are rotated by 90°. The ±1-order diffracted lights interfere with one another such that interference fringes are formed on a light-receiving surface of a photo-detector. Interference light of the ±1-order diffracted lights is transmitted through a polarizing plate. A portion of transmitted light is passed through respective slits of a slit plate and is irradiated onto the photo-detector, and intensity of irradiated light is detected. On the other hand, 0-order diffracted light, ±2-order diffracted lights, and the like, whose polarization directions are not rotated, cannot pass through the polarizing plate, and are blocked before being detected at the photo-detector.

摘要翻译： 从激光光源发射的激光照射到透射型标尺上，并被记录在透射型标尺上的偏振全息图衍射。 衍射光中只有±1级衍射光的偏振方向旋转90°。 ±1级衍射光彼此干涉，使得干涉条纹形成在光检测器的光接收表面上。 ±1级衍射光的干涉光透过偏光板。 透射光的一部分通过狭缝板的相应狭缝并照射到光检测器上，并且检测照射光的强度。 另一方面，偏振方向不旋转的0级衍射光，±2级衍射光等不能通过偏振片，并且在光检测器被检测之前被阻挡。

公开(公告)号：US07501210B2

公开(公告)日：2009-03-10

申请号：US11696017

申请日：2007-04-03

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

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

IPC分类号： G03H1/02

CPC分类号： G11B7/25

摘要： In the present invention, a photosensitive layer of an optical recording medium includes a photo-responsive high-molecular compound comprising a photo-responsive group (e.g., an azobenzene derivative) which is geometrically isomerized by light radiation, and a liquid crystal linear mesogen group (e.g., a biphenyl derivative), wherein the photo-responsive group and the linear mesogen group are respectively bonded as side chains. The invention provides an optical recording medium enabling large scale recording by making the photosensitive layer thick without impairing recording characteristics. The photo-responsive high-molecular compound preferably comprises an aromatic ring on a main chain. Further, the photo-responsive high-molecular compound preferably comprises a structural unit which is capable of forming a liquid-crystalline or crystalline polymer and a structural unit which is capable of forming an amorphous polymer.

摘要翻译： 在本发明中，光记录介质的感光层包括光反应性高分子化合物，其包含通过光辐射几何异构化的光响应性基团（例如偶氮苯衍生物）和液晶线性介晶基 （例如联苯衍生物），其中光敏反应基团和线性介晶基团分别作为侧链键合。 本发明提供一种能够通过使光敏层厚而不损害记录特性而进行大规模记录的光记录介质。 光敏高分子化合物优选在主链上包含芳香环。 此外，光敏高分子化合物优选包含能够形成液晶或结晶聚合物的结构单元和能够形成无定形聚合物的结构单元。

公开(公告)号：US07154646B2

公开(公告)日：2006-12-26

申请号：US11411873

申请日：2006-04-27

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. 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. 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： 具有优异的耐振动和噪音的光学记录/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以直角交叉的参考光。 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：US07154645B2

公开(公告)日：2006-12-26

申请号：US10796033

申请日：2004-03-10

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： G03H1/12

CPC分类号： G03H1/265 ,  G03H1/16 ,  G03H1/26 ,  G03H2260/35 ,  G11B7/0065

摘要： A holographic recording method and a holographic recording apparatus capable of selectively rewriting or erasing only desired data without degrading data other than the desired data are provided. Holograms are multiple recorded per file, and page data in one file is multiple recorded, while page data in one file and page data in another file are not multiple recorded. Therefore, only the desired file can be selectively rewritten or erased without degrading the other files.

摘要翻译： 提供了一种全息记录方法和全息记录装置，其能够仅选择性地重写或擦除所需数据，而不会降低除所需数据以外的数据。 全息图是每个文件多个记录，一个文件中的页面数据被多次记录，而一个文件中的页面数据和另一个文件中的页面数据不被多重记录。 因此，只有期望的文件可以选择性地重写或删除，而不会降低其他文件。

公开(公告)号：US20060092488A1

公开(公告)日：2006-05-04

申请号：US11291912

申请日：2005-12-02

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： G03H1/02

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.

公开(公告)号：US20110013156A1

公开(公告)日：2011-01-20

申请号：US12726599

申请日：2010-03-18

申请人： Katsunori Kawano ,  Jiro Minabe

发明人： Katsunori Kawano ,  Jiro Minabe

IPC分类号： G03B27/00 ,  G02B5/32

CPC分类号： G02B5/32 ,  G03H2001/0434 ,  G03H2260/12 ,  G03H2270/54 ,  H04N1/506

摘要： An exposure apparatus according to an exemplary embodiment of the invention includes a substrate in which plural light-emitting devices are arrayed one-dimensionally or two-dimensionally; and a hologram recording layer that is disposed on the substrate, plural holograms being recorded in the hologram recording layer by holographic interference between a first beam and a second beam such that a predetermined number of beam spots are disposed in the hologram recording layer in a predetermined array direction according to a portion of light-emitting devices, the portion of light-emitting devices being selected as emitters from the plural light-emitting devices, the beam spot being formed by a light beam of the second beam, the first beam passing through an optical path of diffusion light that passes through the emitter, the second beam passing through an optical path of convergent light that converges at a predetermined distance outside the optical path of the first beam.

摘要翻译： 根据本发明的示例性实施例的曝光装置包括其中多个发光器件被一维或二维排列的衬底; 以及设置在基板上的全息图记录层，通过第一光束和第二光束之间的全息干涉将多个全息图记录在全息图记录层中，使得预定数量的光束点以预定的方式设置在全息图记录层中 根据发光装置的一部分的阵列方向，从多个发光装置中选择发光装置的发光部，所述光束点由第二光束的光束形成，第一光束通过 通过发射器的扩散光的光路，第二光束通过在第一光束的光路外的预定距离会聚的会聚光的光路。

公开(公告)号：US06512085B1

公开(公告)日：2003-01-28

申请号：US09690589

申请日：2000-10-18

申请人： Jiro Minabe ,  Katsunori Kawano ,  Yasunari Nishikata

发明人： Jiro Minabe ,  Katsunori Kawano ,  Yasunari Nishikata

IPC分类号： C08F600

CPC分类号： G02B5/3083

摘要： A method of providing a polymeric film with optical anisotropy by applying a polarized light to a polymeric film is disclosed. In the method, a photoisomerizable group or a photoisomerizable molecule has a T (thermal) type photochromic property capable of being isomerized by a thermal back reaction after the isomerization by light. The method includes two successive steps, that is, a step of applying a polarized light to the polymeric film and a step of shutting off a polarized light and leaving the film as it is, and controls the temperature of the polymeric film for enhancing the orientation of the photoisomerizable group or the photoisomerizable molecule induced by the thermal back reaction. An apparatus for practicing the method and an optical anisotropic medium having the polymeric film with high optical anisotropy obtained by the method are also provided.

摘要翻译： 公开了一种通过向聚合物膜施加偏振光来提供具有光学各向异性的聚合物膜的方法。 在该方法中，光可异构化基团或光可异构化分子具有在通过光异构化之后能够通过热反向反应异构化的T（热）型光致变色性质。 该方法包括两个连续的步骤，即将偏振光应用于聚合物膜的步骤以及关闭偏振光并离开膜的步骤，并控制聚合物膜的温度以增强取向 的光可异构化基团或由热反应诱导的光致异构化分子。 还提供了一种用于实施该方法的装置和具有通过该方法获得的具有高光学各向异性的聚合物膜的光学各向异性介质。

公开(公告)号：US06285474B1

公开(公告)日：2001-09-04

申请号：US09577842

申请日：2000-05-25

申请人： Katsunori Kawano ,  Jiro Minabe ,  Takehiro Niitsu ,  Tsutomu Ishii ,  Yasunari Nishikata ,  Kazuo Baba

发明人： Katsunori Kawano ,  Jiro Minabe ,  Takehiro Niitsu ,  Tsutomu Ishii ,  Yasunari Nishikata ,  Kazuo Baba

IPC分类号： G03H116

CPC分类号： G03H1/00 ,  G03H2222/31 ,  G06K9/76

摘要： A method and an apparatus capable of filtering based on desired spatial frequency characteristics without loss of Fourier spectrum frequency components, and of matched filtering of high recognition capability without losing functions of data recording and reconstruction as well as high-speed transmission and retrieval features and mass storage capacity characteristic of a holographic memory. Fourier transformed object light with 0° polarization of a target image is stored as a hologram using reference light having a spatial polarization distribution such that a daughter wavelet on scale m has 90° polarization. The hologram is retrieved using the Fourier transformed object light with 0° polarization. The hologram yields diffracted light in the form of a spatial frequency component which corresponds to scale m and is polarized 90° with respect to the other spatial frequency components. A polarizing element is used to extract only the spatial frequency component corresponding to scale m. Given reference light having a spatial polarization distribution in conformity with a shape of a spatial frequency filter, retrieval light of 0° polarization is applied for low-pass and high-pass filtering upon reconstruction.

摘要翻译： 一种能够基于期望的空间频率特性进行滤波而不损失傅里叶谱频率分量的方法和装置，并且具有高识别能力的匹配滤波，而不失去数据记录和重建的功能，以及高速传输和检索特征和质量 全息存储器的存储容量特性。 使用具有空间极化分布的参考光，使得尺度为m的子小波具有90°偏振，将目标图像的0°偏振的傅里叶变换物体光存储为全息图。 使用具有0°极化的傅里叶变换的物体光来检索全息图。 全息图以空间频率分量的形式产生衍射光，其对应于刻度m并且相对于其它空间频率分量偏振90°。 偏振元件用于仅提取与刻度m对应的空间频率分量。 给定具有与空间频率滤波器的形状一致的空间极化分布的参考光，在重建时将0°偏振的检索光应用于低通和高通滤波。