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    Dye precursor molecules chemically reactive with the light-altered form of light-sensitive molecules to form stable fluorescent dye, particularly for optical memories including two-photon three-dimensional optical memories
    91.
    发明申请
    Dye precursor molecules chemically reactive with the light-altered form of light-sensitive molecules to form stable fluorescent dye, particularly for optical memories including two-photon three-dimensional optical memories 审中-公开
    染料前体分子与光改变形式的光敏分子化学反应以形成稳定的荧光染料，特别是对于包括双光子三维光学存储器的光学存储器

    公开(公告)号：US20030073031A1

    公开(公告)日：2003-04-17

    申请号：US10218685

    申请日：2002-08-13

    Inventor： Peter M. Rentzepis ,  Alexander Dvornikov

    IPC: G11B007/24

    CPC classification number: G11B7/246 ,  B82Y10/00 ,  G11B7/00455 ,  G11B7/0052 ,  G11B7/244 ,  G11B7/245 ,  G11B2007/0009 ,  G11B2007/24624

    Abstract: Dye precursor moleculesnullnormally rhodamine basenullheld in a transparent matrix are reactive with acids, bases, ions or radicalsnulland in the case of rhodamine are reactive with acidsnullto produce dye moleculesnulli.e., rhodaminenullhaving markedly different spectroscopic properties. Light-sensitive moleculesnullnormally a compound of ortho-nitro-aldehyde, in particular o-nitro-benzaldehyde or, preferably, 1-nitro-2-naphthaldehydenullin the same matrix undergo photochemical reaction when selectively exposed to light so as to form at least one of the acids, bases, ions or radicals with which the dye precursor molecules are reactivenullpreferably nitroso acid. Chemical reaction of rhodamine base dye precursor molecules with photochemically produced nitroso acid within domains that are radiatively-selected two-dimensionally, or within voxels that are radiatively-selected three-dimensionally, by first-frequency nullwritenull radiationnullincluding as may be realized by two-photon absorptionnullproduces stable rhodamine dye in the radiatively-selected domains/voxels. Subsequent illumination with a single second-frequency nullreadnull radiation induces strong fluorescence in the dye of the written domains/voxels while leaving all chemicals/photochemicals unchanged. The induced fluorescence may be imaged to a detector, such as a charge coupled device (CCD), to reliably realize a high signal-to-noise, non-degrading, optical memory of the write once, read many (WORM) type.

    Abstract translation: 染料前体分子 - 通常罗丹明碱保持在透明基质中与酸，碱，离子或自由基反应 - 在罗丹明的情况下与酸反应 - 产生染料分子 - 即罗丹明 - 具有明显不同的光谱性质。 光敏分子通常是邻硝基醛的化合物，特别是邻硝基苯甲醛或优选1-硝基-2-萘甲醛在同一基质中，当选择性地暴露在光下时会发生光化学反应，形成 染料前体分子与其反应的酸，碱，离子或自由基中的至少一种 - 优选亚硝酸。 罗丹明碱性染料前体分子与光化学产生的亚硝酸在二维辐射选择的三维内部或通过第一频率“写入”辐射被辐射选择的体素内的化学反应 - 包括可被实现 通过双光子吸收 - 在辐射选择的结构域/体素中产生稳定的罗丹明染料。 随后的单次二次“读取”辐射的照射在书面结构域/体素的染料中引起强烈的荧光，同时使所有化学物质/光化学物质保持不变。 诱导的荧光可以被成像到诸如电荷耦合器件（CCD）的检测器，以可靠地实现一次写入（WORM）写入一次读取（WORM）类型的高信噪比，非降级光学存储器。

    Optical storage media and method for optical data storage via local changes in reflectivity of a format grating
    92.
    发明授权
    Optical storage media and method for optical data storage via local changes in reflectivity of a format grating 有权
    用于光学数据存储的光存储介质和方法，通过格式光栅的反射率的局部变化

    公开(公告)号：US06512606B1

    公开(公告)日：2003-01-28

    申请号：US09364324

    申请日：1999-07-29

    Applicant: Matthew Lipson ,  Sergei Sochava ,  Lambertus Hesselink ,  Brian H. Cumpston ,  Robert R. MeLeod ,  Charles D. Claude

    Inventor： Matthew Lipson ,  Sergei Sochava ,  Lambertus Hesselink ,  Brian H. Cumpston ,  Robert R. MeLeod ,  Charles D. Claude

    IPC: G03H118

    CPC classification number: B82Y10/00 ,  C01P2004/64 ,  C09C1/56 ,  G03F7/001 ,  G03H2001/0264 ,  G03H2001/303 ,  G11B7/00455 ,  G11B7/0052 ,  G11B7/0065 ,  G11B7/24 ,  G11B7/26

    Abstract: An optical data storage system and method comprising a photopolymer medium having generally a polymerizable monomer, an active binder, a first, hologram recording polymerization initiator, and a second, data writing polymerization initiator. The monomer is preferably a cationic ring-opening monomer. The hologram recording polymerization initiator preferably comprises a sensitizer and photoacid generator which initiate a first polymerization in the medium which defines a format hologram. The format hologram recording is carried out via interference of a signal and reference beam, with the sensitizer being specific for the wavelength(s) of the signal and reference beams. The hologram recording polymerization is only partial and does not consume all of the monomer present in the photopolymer medium. A second stage, a data writing polymerization initiator, specific to a data writing beam, locally advances polymerization at selected data storage locations to alter the previously recorded format hologram, resulting in optical data storage as localized alterations in the format hologram.

    Abstract translation: 一种光学数据存储系统和方法，其包括通常具有可聚合单体的光聚合物介质，活性粘合剂，第一全息记录聚合引发剂和第二数据书写聚合引发剂。 单体优选为阳离子开环单体。 全息记录聚合引发剂优选包括敏化剂和光致酸产生剂，其在介质中引发第一次聚合，其定义格式全息图。 格式全息图记录通过信号和参考光束的干涉进行，敏化剂特定于信号和参考光束的波长。 全息记录聚合仅仅是部分的，并且不消耗光聚合物介质中存在的所有单体。 第二阶段，特定于数据写入光束的数据写入聚合引发器在选定的数据存储位置局部地前进聚合以改变先前记录的格式全息图，导致光学数据存储为格式全息图中的局部改变。

    Medium and method for recording optical information
    93.
    发明授权
    Medium and method for recording optical information 有权
    介质和记录光信息的方法

    公开(公告)号：US06507547B1

    公开(公告)日：2003-01-14

    申请号：US09531208

    申请日：2000-03-20

    Applicant: Yoshikazu Takagishi ,  Takanori Yoshizawa ,  Kazuyuki Shibuya ,  Emiko Hamada

    Inventor： Yoshikazu Takagishi ,  Takanori Yoshizawa ,  Kazuyuki Shibuya ,  Emiko Hamada

    IPC: G11B700

    CPC classification number: G11B7/00455 ,  G11B7/24 ,  G11B7/2472 ,  G11B7/2531 ,  G11B7/2534 ,  G11B7/2542 ,  G11B7/259

    Abstract: Provided is a medium for recording optical information and a method for recording optical information that allow recording sensitivity to be increased, and particularly a prescribed recording sensitivity to be maintained together with reflectivity and other playback characteristics during high-speed recording, by employing the temperature dependence of recording sensitivity of the light-absorbing layer instead of the light attenuation coefficient of the light-absorbing layer, and selecting a material which is prone to increased absorption of a laser beam at high temperatures during recording. A distinctive feature is that the absorbance or recording sensitivity of the dye material film used in the medium for recording optical information that has a writable structure is dependent on temperature. Specifically, it was found that the absorption spectrum of the dye material varies at high temperatures, and a relation A2/A1≧1.30 was established. In this relation, A1 (Abs) is an absorbance of the light-absorbing layer at a wavelength of recording light under room-temperature conditions, T (°C.) is a pyrolysis temperature of the light-absorbing layer, and A2 (Abs) is an absorbance at a wavelength of recording light under T−50 (°C.) conditions.

    Abstract translation: 提供了一种用于记录光学信息的介质和用于记录允许记录灵敏度增加的光学信息的方法，特别是在高速记录期间通过采用温度依赖性与特定的记录灵敏度一起保持与反射率和其他重放特性 记录光吸收层的灵敏度而不是光吸收层的光衰减系数，并且在记录期间选择易于增加激光束在高温下的吸收的材料。 特别的特征是用于记录具有可写结构的光学信息的介质中的染料材料膜的吸光度或记录灵敏度取决于温度。 具体地说，发现染料的吸收光谱在高温下变化，建立了A2 / A1> = 1.30的关系。 在这种关系中，A1（Abs）是在室温条件下记录光波长处的光吸收层的吸光度，T（℃）是光吸收层的热解温度，A2（Abs ）是在T-50（℃）条件下记录光的波长处的吸光度。

    Molecular level optical information storage devices
    96.
    发明授权
    Molecular level optical information storage devices 失效
    分子级光学信息存储设备

    公开(公告)号：US06500510B1

    公开(公告)日：2002-12-31

    申请号：US09544767

    申请日：2000-04-07

    Applicant: Patrick Sanders ,  Carlo Alberto Bignozzi

    Inventor： Patrick Sanders ,  Carlo Alberto Bignozzi

    IPC: B32B302

    CPC classification number: G11B7/246 ,  G11B7/00455 ,  G11B7/0052 ,  G11B7/249 ,  G11B7/253 ,  G11B7/2542 ,  G11B7/26 ,  Y10T428/21

    Abstract: The present invention relates to use of transition metal complexes in photochromic devices, to the production of optical information storage devices based on a polymeric matrix and on metal oxides with adsorbed transition metal complexes, to the production of photochromic materials constituted by a film of metal oxide with adsorbed two different type of molecular systems, one acting as a charge transfer sensitizer and the second as an electron acceptor.

    Abstract translation: 本发明涉及过渡金属络合物在光致变色器件中的应用，以及生产基于聚合物基质的光学信息存储装置和具有吸附的过渡金属络合物的金属氧化物的制备，以制备由金属氧化物膜构成的光致变色材料 具有吸附的两种不同类型的分子系统，一种用作电荷转移敏化剂，另一种用作电子受体。

    Multi-layer optical recording media and system for recording and reproducing information data
    97.
    发明授权
    Multi-layer optical recording media and system for recording and reproducing information data 失效
    多层光记录介质和用于记录和再现信息数据的系统

    公开(公告)号：US06498775B1

    公开(公告)日：2002-12-24

    申请号：US09141063

    申请日：1998-08-27

    Applicant: Bunsen Fan ,  Sadeg M. Faris

    Inventor： Bunsen Fan ,  Sadeg M. Faris

    IPC: G11B374

    CPC classification number: G11B7/127 ,  G11B7/003 ,  G11B7/0033 ,  G11B7/0037 ,  G11B7/00455 ,  G11B7/005 ,  G11B7/0052 ,  G11B7/0908 ,  G11B7/0945 ,  G11B7/12 ,  G11B7/126 ,  G11B7/14 ,  G11B7/24 ,  G11B7/25 ,  G11B7/26 ,  G11B19/12 ,  G11B2007/0013 ,  Y10S425/81 ,  Y10T156/10

    Abstract: Disclosed is a novel multi-layered optical recording media and system for recording and reproducing information data. The multi-layered topical recording media has M information storage decks, and each information storage deck has N information storage layers, and each information storage layer has a pair of information storage structures. Each paired information storage structure has a characteristic wavelength and polarization state, and from which recorded information can be read by a laser beam having similar wavelength and polarization-state characteristics. In the illustrative embodiment, the multi-layered optical recording media of the present invention has MxNx2 information storage layers which can be read using only N laser lines (i.e. spectral components), thereby providing a 2M-fold increase in information storage capacity over prior art systems. The information storage and retrieval system of the present invention is completely backward compatible to allow for the reading of conventional CD-ROM devices.

    Abstract translation: 公开了一种用于记录和再现信息数据的新型多层光学记录介质和系统。 多层局部记录介质具有M个信息存储层，每个信息存储层具有N个信息存储层，并且每个信息存储层具有一对信息存储结构。 每个配对信息存储结构具有特征波长和偏振状态，并且可以由具有相似波长和偏振状态特性的激光束读取记录信息。 在说明性实施例中，本发明的多层光学记录介质具有可以仅使用N条激光线（即，光谱分量）读取的MxNx2信息存储层，从而相比于现有技术提供了2M倍的信息存储容量 系统。 本发明的信息存储和检索系统完全向下兼容以允许读取传统的CD-ROM设备。

    Optical recording medium, optical information processing apparatus and optical recording and reproducing method
    99.
    发明申请
    Optical recording medium, optical information processing apparatus and optical recording and reproducing method 审中-公开
    光记录介质，光信息处理装置和光记录和再现方法

    公开(公告)号：US20020122374A1

    公开(公告)日：2002-09-05

    申请号：US10086944

    申请日：2002-02-28

    Applicant: Matsushita Electric Industrial Co., Ltd

    Inventor： Hiroaki Yamamoto ,  Teruhiro Shiono ,  Tetsuo Saimi

    IPC: G11B007/00

    CPC classification number: G11B7/00455 ,  G11B7/24 ,  G11B7/244 ,  G11B7/248

    Abstract: An optical recording medium of the present invention includes a recording layer, in which information is recorded in a three-dimensional manner in an in-plane direction and a thickness direction of the recording layer. The recording layer includes a thermochromic material whose color changes reversibly according to a temperature. The thermochromic material converts absorbed light into heat, increases its light absorptance as the temperature rises and, when the temperature reaches a first predetermined temperature or higher, changes irreversibly to a translucent substance whose color does not change according to a temperature change. In this optical recording medium, since only the position on which irradiated light is focused develops color so as to increase light absorptance, this property is utilized for recording and reproducing information.

    Abstract translation: 本发明的光记录介质包括记录层，其中信息以三维方式记录在记录层的面内方向和厚度方向上。 记录层包括一种根据温度可逆地变色的热变色材料。 热变色材料将吸收的光转换成热，随着温度升高而增加其光吸收率，并且当温度达到第一预定温度或更高温度时，其颜色不随温度变化而变化的半透明物质不可逆地变化。 在这种光学记录介质中，由于仅照射被照射的光的位置才会产生颜色，以增加光吸收，所以该特性用于记录和再现信息。

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