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    REWRITABLE OPTICAL INFORMATION RECORDING MEDIUM AND RECORDING/REPRODUCING METHOD, RECORDING/REPRODUCING DEVICE
    3.
    发明公开
    REWRITABLE OPTICAL INFORMATION RECORDING MEDIUM AND RECORDING/REPRODUCING METHOD, RECORDING/REPRODUCING DEVICE 审中-公开
    AUFZEICHNUNGS- / REPRODUZIERVORRICHTUNG的AUFZEICHNUNGS- / REPRODUZIERVERFAHREN日前宣布的最新消息

    公开(公告)号：EP1484191A4

    公开(公告)日：2005-03-02

    申请号：EP03743454

    申请日：2003-02-14

    申请人： SONY CORP ,  MITSUI CHEMICALS INC

    发明人： TAMADA SAKUYA ,  IWAMURA TAKASHI ,  SABI YUICHI ,  OYAMADA MITSUAKI ,  YAMAMOTO MASANOBU ,  KOIKE TADASHI ,  MISAWA TATSUMI ,  OGISO AKIRA ,  NARA RYOUSUKE ,  TOKUHIRO JUN ,  TSUKAHARA HISASHI

    IPC分类号： G11B7/0045 ,  G11B7/244 ,  G11B7/248 ,  G11B7/249 ,  B41M5/26 ,  G11B7/004 ,  G11B7/0055 ,  G11B7/24

    CPC分类号： G11B7/00452 ,  G11B7/244 ,  G11B7/248 ,  G11B7/249

    摘要： A rewritable optical information recording medium including a recording layer composed of an organic dye film is provided, in which recording and erasing information can be performed reversibly by laser light irradiation. A rewritable optical information recording medium including at least one organic dye film which is substantially made of only at least one kind of organic dye compounds as a recording film is provided. The recording and erasure of information are performed by a reversible physical change of the organic dye film substance caused by laser light irradiation. Specifically, data recording is performed by a physical change locally caused by the irradiation of recording laser light, data reproduction is performed by detecting change in intensity of returned light of reproducing laser light having less power than the recording laser light, and data erasure is performed by applying at least once continuous light or pulse light having laser power more than the reproducing laser light and less than the recording laser light. The physical change is a change in shape.

    摘要翻译： 提供了包括由有机染料膜组成的记录层的可重写光学信息记录介质，其中可以通过激光照射可逆地进行记录和擦除信息。 提供了包括至少一种仅由至少一种作为记录膜的有机染料化合物制成的有机染料膜的可重写光学信息记录介质。 通过激光照射引起的有机染料膜物质的可逆物理变化来进行信息的记录和擦除。 具体地，通过由记录激光的照射局部引起的物理变化来进行数据记录，通过检测具有比记录激光的功率更小的再现激光的返回光的强度的变化来执行数据再现，并且执行数据擦除 通过施加至少一次具有比再现激光更多的激光功率并小于记录激光的连续光或脉冲光。 物理变化是形状的变化。

    MULTILAYER OPTICAL RECORDING MEDIUM AND MANUFACTURING METHOD THEREOF
    4.
    发明公开
    MULTILAYER OPTICAL RECORDING MEDIUM AND MANUFACTURING METHOD THEREOF 审中-公开
    多层记录介质和光度用于生产

    公开(公告)号：EP1770695A4

    公开(公告)日：2008-12-24

    申请号：EP05765676

    申请日：2005-07-12

    申请人： SONY CORP

    发明人： NAKAOKI ARIYOSHI ,  YAMAMOTO MASANOBU

    IPC分类号： G11B7/24

    CPC分类号： G11B7/252 ,  G11B7/24038 ,  G11B7/2534 ,  G11B7/26

    摘要： A multilayer optical recording medium which satisfies a reflectance required for reproducing record of digital data which conform to the standards of CD (Compact Disc) and DVD (Digital Versatile Disc). In the multilayer optical recording medium, a first transparent board (12), an HD layer (11), a second transparent board (22) and a CD layer (21) are successively laminated. The HD layer is provided with one or more layers of semi-transparent films (31), which have reflection characteristics to a wavelength of a first reproducing signal, transmission characteristics to a wavelength of a second reproducing signal and a higher refraction index than that of the first transparent board. The CD layer is provided with a metal film (23) having reflection characteristics to the wavelength of the second reproducing signal. The total thickness of the semitransparent films is defined as a×m×?×n, where, ? is the wavelength of the second reproducing signal, and n is the refraction index of the first transparent board. An inequality of 1.0=a=1.3 is satisfied and m is an integer number of 1 or more.

    OPTICAL RECORDING MEDIUM INITIALIZATION METHOD
    10.
    发明公开
    OPTICAL RECORDING MEDIUM INITIALIZATION METHOD 有权
    启动过程光学记录介质

    公开(公告)号：EP1477971A4

    公开(公告)日：2008-03-19

    申请号：EP03705312

    申请日：2003-02-19

    申请人： SONY CORP

    发明人： KUROKAWA KOTARO ,  YAMASAKI TAKESHI ,  YUKUMOTO TOMOMI ,  YAMAMOTO MASANOBU ,  UEDA DAISUKE

    IPC分类号： G11B7/0055 ,  G11B7/242 ,  G11B7/26 ,  G11B7/24

    CPC分类号： G11B7/26 ,  G11B7/24038 ,  G11B7/268

    摘要： An optical recording medium initialization method for a recording medium having a plurality of optical recording layers capable of reducing initialization irregularities caused by optical interference upon initialization without deteriorating the information recording/reproduction signal characteristic of the recording layer. On a substrate (11), a second optical recording layer (12) and a first optical recording layer (16) are successively formed via an intermediate layer (17). Furthermore, on the first optical recording layer (16), a protection layer (18) is formed. At least the first optical recording layer (16) has a recording film having a phase change type recording material. In the optical recording medium initialization method, recording/reproduction light LTR is applied from the side of the protection layer (18) upon recording/reproduction. The intermediate layer (17) is made from a material having a sufficient transmittance with respect to the wavelength of the recording/reproduction light LTR and absorption with respect to the initialization light LTI. In the process of initialization by applying the initialization light LTI to the first optical recording layer (16)from the side of the protection layer (18), the initialization is performed by using a laser beam having a wavelength in the range from 200 to 400 nm as the initialization light LTI.