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    • 3. 发明公开
    • THREE-DIMENSIONAL OPTICAL MEMORY
    • 三维光学记忆
    • EP1269469A2
    • 2003-01-02
    • EP01919724.3
    • 2001-03-28
    • Mempile Inc.
    • ALPERT, Ortal
    • G11B7/24G11B7/00
    • G11B7/245B82Y10/00G11B7/00455G11B7/24G11B7/244Y10S430/146
    • The present invention is directed to a three-dimensional memory apparatus for storing information in a volume comprising of an active medium. The active medium is capable of changing from a first to a second isomeric form as a response to radiation of a light beam having an energy substantially equal to a first threshold energy. The concentration ratio between a first and a second isomeric form in any given volume portion represents a data unit. The active medium in the memory apparatus comprises of diarylalkene derivatives, triene derivatives, polyene derivatives or a mixture thereof. The invention is further directed to means for reading the data units from the isomeric states of the active medium in different portions of said active medium where the two isomeric forms have a substantially different absorption coefficient for absorbing energy of a second threshold energy. Reading may also be carried out by measuring the scattering pattern of the two isomeric forms.
    • 本发明涉及一种用于在包含活动介质的卷中存储信息的三维存储装置。 作为对具有基本上等于第一阈值能量的能量的光束的辐射的响应,活性介质能够从第一异构形式变为第二异构形式。 任何给定体积部分中第一和第二异构体形式之间的浓度比代表数据单元。 记忆装置中的活性介质包含二芳基烯衍生物,三烯衍生物,多烯衍生物或其混合物。 本发明还涉及用于从所述活性介质的不同部分中的活性介质的异构状态读取数据单元的装置,其中两种异构形式具有用于吸收第二阈值能量的能量的基本不同的吸收系数。 读取也可以通过测量两种异构形式的散射模式来进行。