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    • 7. 发明授权
    • Optical information recording medium, recording/reproducing method, and recording/reproducing device
    • 光信息记录介质,记录/再现方法和记录/再现装置
    • US07651832B2
    • 2010-01-26
    • US11083463
    • 2005-03-17
    • Nobuyuki TakamoriGo MoriHideharu TajimaMasaki Yamamoto
    • Nobuyuki TakamoriGo MoriHideharu TajimaMasaki Yamamoto
    • G11B7/24
    • G11B7/24038G11B7/24Y10S430/146
    • The subject invention achieves further improvement in recording density for an optical information recording medium using a medium super-resolution effect with a super-resolution film, by reduction of the effective spot diameter in a further effective way. According to the optical information recording medium of the present invention, information is recorded on a recording surface of a substrate 5 in the form of phase pits. On the recording surface, an information layer 4, composed of a reflection film 6, a light-absorbing film 3 and a temperature-responsive film 2, is formed. The temperature-responsive film 2 is made of a ZnO film, which is an inorganic super-resolution film whose complex refractive index changes according to intensity of incident light, the film is also superior in a light transmittance property. The light-absorbing film 3 is made of an Si film 3, which absorbs a part of the incident light so that the temperature of the information layer 4 increases. The reflection film 6 is made of an Al film.
    • 本发明通过以更有效的方式降低有效光斑直径,使用超分辨率膜的中等超分辨率效果进一步提高了用于光信息记录介质的记录密度。 根据本发明的光学信息记录介质,信息以相位坑的形式记录在基板5的记录表面上。 在记录表面上形成由反射膜6,光吸收膜3和温度响应膜2构成的信息层4。 温度响应膜2由ZnO膜制成,ZnO膜是复合折射率根据入射光的强度而变化的无机超分辨率膜,该膜也具有优异的透光性。 光吸收膜3由Si膜3制成,其吸收一部分入射光,使得信息层4的温度升高。 反射膜6由Al膜构成。
    • 8. 发明授权
    • Optical information recording medium, reproducting method using the same, and optical information processing device
    • 光信息记录介质,使用其的再现方法,以及光信息处理装置
    • US07556912B2
    • 2009-07-07
    • US10862187
    • 2004-06-04
    • Go MoriMasaki YamamotoHideharu TajimaNobuyuki Takamori
    • Go MoriMasaki YamamotoHideharu TajimaNobuyuki Takamori
    • G11B7/24
    • B82Y10/00G11B7/24G11B7/243G11B7/2534G11B7/257Y10S430/146
    • An optical information recording medium of the present invention includes a thin film section made up of one or more thin film, the thin film section being provided on a substrate. Thin films of the thin film section include a single optical multiple interference film which incites optical multiple interference in a thin film section, the optical multiple interference being incited by the change of complex refractive index in accordance with the intensity of incident light. Also, the composition and thickness of the optical multiple interference film are arranged in such a manner as to cause the wavelength distribution of the reflectance of the thin film section at room temperatures to have a minimum value within wavelengths of ±80 nm of the incident light for reproduction. With this, the design freedom of the optical multiple interference film which realizes super-resolution reproduction with a reduced effective reproduction spot is significantly increased.
    • 本发明的光学信息记录介质包括由一个或多个薄膜构成的薄膜部分,薄膜部分设置在基板上。 薄膜部分的薄膜包括在薄膜部分中引起光学多重干涉的单个光学多重干涉膜,根据入射光的强度,复数折射率的变化引起光学多重干涉。 此外,光学多重干涉膜的组成和厚度被布置成使得室温下的薄膜部分的反射率的波长分布在入射光的±80nm的波长内具有最小值 用于繁殖。 由此,实现具有降低的有效再现点的超分辨率再现的光学多重干涉膜的设计自由度显着增加。