Photo-responsive high-molecular compound, photo-responsive high-molecular composition, dicarboxylic acid monomer, polyester, optical recording medium and optical record reproducing device
    81.
    发明授权
    Photo-responsive high-molecular compound, photo-responsive high-molecular composition, dicarboxylic acid monomer, polyester, optical recording medium and optical record reproducing device 有权
    光响应高分子化合物,光敏高分子组合物,二羧酸单体,聚酯,光记录介质和光记录再现装置

    公开(公告)号:US07501210B2

    公开(公告)日:2009-03-10

    申请号:US11696017

    申请日:2007-04-03

    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。

    Optical recording apparatus and optical recording/reproducing apparatus
    85.
    发明授权
    Optical recording apparatus and optical recording/reproducing apparatus 失效
    光记录装置和光记录/再现装置

    公开(公告)号:US07154646B2

    公开(公告)日:2006-12-26

    申请号:US11411873

    申请日:2006-04-27

    IPC分类号: G03H1/12

    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。

    Holographic recording method and apparatus
    86.
    发明授权
    Holographic recording method and apparatus 有权
    全息记录方法和装置

    公开(公告)号:US07154645B2

    公开(公告)日:2006-12-26

    申请号:US10796033

    申请日:2004-03-10

    IPC分类号: G03H1/12

    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。

    Optical information reading device
    90.
    发明申请
    Optical information reading device 有权
    光信息读取装置

    公开(公告)号:US20050207312A1

    公开(公告)日:2005-09-22

    申请号:US10939514

    申请日:2004-09-14

    摘要: The present invention provides an optical information reading device includes: a light source that irradiates, with reference beam, a hologram recorded in an optical recording medium; a reading unit that reads information from a holographic image reconstructed by the reference beam being diffracted by the hologram; a housing; a contact member of the housing contacting a paper; an open portion formed in the contact member, through which the optical recording medium is exposed and towards which the reference beam is emitted; an alignment mark formed at a periphery of the open portion, the reference beam irradiating the hologram satisfying a holographic image reconstruction condition by the alignment mark being aligned with an optical recording medium alignment mark recorded on the optical recording medium; and a viewing portion that is positioned in the housing and through which the alignment mark and the optical recording medium alignment mark are visible.

    摘要翻译: 本发明提供一种光学信息读取装置,包括:以参考光束照射记录在光学记录介质中的全息图的光源; 读取单元,其从由全息图衍射的参考光束重构的全息图像中读取信息; 房屋; 接触纸的接触构件; 形成在所述接触构件中的开口部分,所述光学记录介质暴露在所述开口部分中并且所述参考光束发射到所述开口部分; 形成在开口部分的周边的对准标记,通过对准标记照射满足全息图像重建条件的全息图的参考光束与记录在光学记录介质上的光学记录介质对准标记对齐; 以及位于壳体中并且对准标记和光学记录介质对准标记可见的观察部分。