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    • 2. 发明申请
    • Optical information carrier comprising thermochromic or photochromic material
    • 包含热变色或光致变色材料的光学信息载体
    • US20060187806A1
    • 2006-08-24
    • US10548939
    • 2004-03-17
    • Marcello BalistreriAndrei MijiritskiiJohannes Theodorus WilderbeekChristopher BuschBin YinHubert Martens
    • Marcello BalistreriAndrei MijiritskiiJohannes Theodorus WilderbeekChristopher BuschBin YinHubert Martens
    • G11B7/24
    • G11B7/242G11B7/14G11B7/24038
    • The present invention relates to an optical information carrier for recording information by means of an optical beam, said optical information carrier comprising a substrate layer (S), a recording layer (P) including a thermochromic material having temperature-dependent optical characteristics or a photochromic material having light dependent optical characteristics for selectively improving the sensitivity during recording and/or read-out, and a cover layer (C). To achieve an increase reflectivity the recording layer (P) at elevated temperature or high light intensity, respectively, and a very high transmission and low reflectivity at ambient temperature or low light intensity, respectively, it is proposed to use a thermochromic or photochromic material that has an imaginary part k of the complex refractive index ñ being larger than 0 at elevated temperature or high light intensity, respectively. The present invention relates also to a method of determining the thickness of a recording layer of such an optical information carrier and to a read-out device for reading data from such an optical information carrier.
    • 本发明涉及用于通过光束记录信息的光学信息载体,所述光学信息载体包括基底层(S),包括具有温度依赖性光学特性的热变色材料的记录层(P)或光致变色 具有光依赖光学特性的材料,用于选择性地提高记录和/或读出期间的灵敏度,以及覆盖层(C)。 为了分别在升高的温度或高的光强度下分别提高记录层(P)和环境温度或低光强度下的非常高的透射率和低反射率,提出了使用热致变色或光致变色材料 在高温或高光强度下,复数折射率的虚部k分别大于0。 本发明还涉及一种确定这种光学信息载体的记录层的厚度的方法以及用于从这种光学信息载体读取数据的读出装置。