OPTICAL INFORMATION RECORDING MEDIUM
    24.
    发明申请
    OPTICAL INFORMATION RECORDING MEDIUM 有权
    光信息记录介质

    公开(公告)号:US20130128710A1

    公开(公告)日:2013-05-23

    申请号:US13739668

    申请日:2013-01-11

    Abstract: Optical information recording medium comprises: a plurality of recording layers 14, each of which undergoes a change in refractive index by irradiation with recording beam; and an intermediate layer 15 provided between recording layers 14. The recording layer 14 contains polymer binder and dye dispersed in the polymer binder, and at least in proximity to an interface (far-side interface 18) between the intermediate layer 15 and a recording layer 14 disposed adjacent to incident side of the intermediate layer 15 from which the recording beam enters the intermediate layer, the intermediate layer 15 has refractive index different from that of the recording layer 14. Glass transition temperature of the polymer binder is lower than melting point and decomposition point of the dye, and refractive index of the polymer binder changes by receiving heat generated when the dye absorbs the recording beam, whereby information is recordable in the recording layer.

    Abstract translation: 光信息记录介质包括:多个记录层14,每个通过记录光束的照射而经历折射率的变化; 以及设置在记录层14之间的中间层15.记录层14包含分散在聚合物粘合剂中的聚合物粘合剂和染料,并且至少在中间层15与记录层之间的界面(远侧界面18)附近 14与中间层15的入射侧相邻设置,记录光从该入射侧入射到中间层,中间层15的折射率与记录层14的折射率不同。聚合物粘合剂的玻璃化转变温度低于熔点, 染料的分解点和聚合物粘合剂的折射率通过接收当染料吸收记录光束时产生的热量而改变,由此信息可记录在记录层中。

    METHOD FOR RECORDING ON AND READING OUT FROM OPTICAL INFORMATION RECORDING MEDIUM
    25.
    发明申请
    METHOD FOR RECORDING ON AND READING OUT FROM OPTICAL INFORMATION RECORDING MEDIUM 有权
    用于记录和读取光信息记录介质的方法

    公开(公告)号:US20130121123A1

    公开(公告)日:2013-05-16

    申请号:US13713888

    申请日:2012-12-13

    Abstract: Recording and reading method for optical information recording medium comprising: recording layer having thickness not less than 2λ/n, where λ is wavelength of recording beam and n is refractive index of the recording layer, and configured to undergo a change in the refractive index by irradiation with the recording beam; and adjacent layer adjacent to the recording layer at a side opposite to an incident side, comprises the steps of: recording a recording spot by irradiating with the recording beam, while shifting focal position by offset amount d, which satisfies ω0d3ω0, where ω0 is radius of the recording spot, from interface between recording layer and adjacent layer toward the incident side at a time of recording, whereby the refractive index of recording layer changes at a recording position to record recording spot; and reading out the information by irradiating with reading beam, while bringing it into focus on the interface.

    Abstract translation: 用于光信息记录介质的记录和读取方法,包括:具有不小于2λ/ n的厚度的记录层,其中λ是记录光束的波长,n是记录层的折射率,并且被配置为经历折射率的变化 用记录光束照射; 以及在与入射侧相对的一侧与记录层相邻的相邻层包括以下步骤:通过照射记录光束来记录记录点,同时将焦点位置移动偏移量d,该偏移量d满足omega0d3omega0,其中ω=半径 在记录时从记录层和相邻层之间的界面向入射侧记录记录点,由此记录层的折射率在记录位置改变以记录记录点; 并通过用读取光束照射来读出信息,同时将其重点放在界面上。

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