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    • 41. 发明授权
    • Optical information recording member comprising Au, TeO.sub.2 and Te
    • 包含Au,TeO 2和Te的光学信息记录部件
    • US4587209A
    • 1986-05-06
    • US715395
    • 1985-03-25
    • Eiji OhnoKunio KimuraNoboru YamadaNobuo Akahira
    • Eiji OhnoKunio KimuraNoboru YamadaNobuo Akahira
    • G03C1/72G11B7/243G11B7/257G03C1/94
    • G11B7/257G11B7/243G11B2007/24308G11B2007/24316G11B2007/2432G11B2007/25706G11B2007/25708Y10S430/146Y10S430/165
    • Disclosed is an optical information recording member which permits recording of optical information at a high speed and high density by means of energy of light or heat, as well as a high speed reproduction of the recorded information. The optical information recording member has a thin film formed on a substrate which thin film is made of TeOx constituted by a mixture of Te and TeO.sub.2 with a small amount of Au being added such that the contents of Te, O and Au in the thin film falls within a predetermined region limited in terms of atomic percent. The optical information recording member of the invention having the thin film of Te-O-Au system permits the information to be recorded in quite a short time thus allowing quite high speed of recording and reproduction as compared with the conventional recording film of TeOx system. The optical information recording member of the invention also brings about a higher recording sensitivity and a higher C/N ratio. Further, the optical information recording member may have a thermal diffusion layer of a metal having a higher heat conductivity than the thin film, formed on at least one side of the recording thin film, thereby making uniform and stabilizing the recording bits. In consequence, undesirable distortion of the recording bits is prevented even when an excessively large recording power is irradiated, thus affording a wider adaptability of the optical information recording member.
    • 公开了一种光信息记录部件,其允许通过光或热能量以高速和高密度记录光信息,以及记录信息的高速再现。 光学信息记录部件具有形成在基板上的薄膜,该薄膜由Te和TeO 2的混合物构成的TeOx和少量的Au相加,使得薄膜中的Te,O和Au的含量 落在受原子百分比限制的预定区域内。 具有Te-O-Au系统薄膜的本发明的光学信息记录部件允许在相当短的时间内记录信息,从而与TeOx系统的常规记录膜相比,可以实现相当高的记录和再现速度。 本发明的光信息记录部件也具有较高的记录灵敏度和较高的C / N比。 此外,光学信息记录部件可以具有形成在记录薄膜的至少一侧上的具有比薄膜更高的导热性的金属的热扩散层,从而使记录位均匀稳定。 因此,即使当照射过大的记录功率时也防止了记录位的不期望的失真,从而提供了光信息记录部件的更宽的适应性。
    • 46. 发明授权
    • Method of measuring a film thickness of multilayer thin film
    • 测量多层薄膜膜厚的方法
    • US5883720A
    • 1999-03-16
    • US883530
    • 1997-06-26
    • Tetsuya AkiyamaEiji OhnoNobuo Akahira
    • Tetsuya AkiyamaEiji OhnoNobuo Akahira
    • G01B11/06
    • G01B11/0625
    • A method of manufacturing an optical information recording medium comprising the steps of: forming a plurality of component thin films on a substrate or on a sample at a predetermined film-forming speed and within a predetermined film-forming time in sequence; measuring spectral reflectance of the multilayer thin film formed on the substrate or on the sample; comparing the measured value of the spectral reflectance and the standard value of the spectral reflectance to detect the difference between them; compensating at least one of the film-forming speed and the film-forming time based on the detected difference; and forming a plurality of thin films based on the compensated film-forming speed and with the compensated film-forming time. Consequently, a thickness of each component thin film of the optical information recording medium can be measured easily and production loss in measuring a film-forming speed can be decreased.
    • 一种制造光学信息记录介质的方法,包括以下步骤:在预定的成膜速度和预定的成膜时间内依次在基板或样品上形成多个成分薄膜; 测量形成在衬底或样品上的多层薄膜的光谱反射率; 比较光谱反射率的测量值和光谱反射率的标准值,以检测它们之间的差异; 基于检测到的差异补偿成膜速度和成膜时间中的至少一个; 并且基于补偿的成膜速度和补偿的成膜时间形成多个薄膜。 因此,可以容易地测量光学信息记录介质的每个组分薄膜的厚度,并且可以降低测量成膜速度时的生产损失。
    • 47. 发明授权
    • Optical information recording method and apparatus
    • 光信息记录方法和装置
    • US5745467A
    • 1998-04-28
    • US725944
    • 1996-10-08
    • Yoshitaka SakaueKenichi NishiuchiEiji Ohno
    • Yoshitaka SakaueKenichi NishiuchiEiji Ohno
    • G11B20/10G11B7/00G11B7/0045G11B7/0055G11B7/006G11B7/125G11B7/30
    • G11B7/126G11B7/0045G11B7/00454G11B7/006G11B7/00557
    • In mark length modulation recording, a mark end portion correction pulse train is added to a recording pulse train, or laser radiation with bias power is applied between the recording pulse train and laser radiation with cooling power or the mark end portion correction pulse train, furthermore, the start time of the cooling power radiation, the duration of the cooling power radiation, and the shape of the mark end portion correction pulse train are varied in accordance with the mark length to be recorded, further, in CAV mode, the start time of the cooling power radiation or the duration of the cooling power radiation is varied in accordance with disk radius position, and when the recording pulse train consists of a start pulse, an end pulse, and pulses between the start and end pulses, laser radiation with cooling power is applied, or laser radiation with bias power is applied between the recording pulse train and cooling power application, and when the recording pulse train is varied in accordance with mark length and mark spacing, the timing to start the laser radiation with cooling power is delayed by a predetermined amount from the end pulse or determined based on the clock.
    • 在标记长度调制记录中,将标记结束部分校正脉冲串加到记录脉冲串上,或者在记录脉冲串和具有冷却功率的激光辐射或标记端部校正脉冲串之间施加偏置功率的激光辐射 冷却功率辐射的开始时间,冷却功率辐射的持续时间和标记端部校正脉冲串的形状根据要记录的标记长度而变化,进一步在CAV模式下,开始时间 的冷却功率辐射或冷却功率辐射的持续时间根据盘半径位置而变化,并且当记录脉冲串由起始脉冲,结束脉冲和起始和结束脉冲之间的脉冲组成时,激光辐射与 施加冷却功率,或者在记录脉冲串和冷却功率施加之间施加具有偏置功率的激光辐射,并且当记录脉冲串变化时 根据标记长度和标记间隔,用冷却功率开始激光辐射的时间从结束脉冲延迟预定量或基于时钟确定。
    • 50. 发明授权
    • Reversible optical information recording medium
    • 可逆光信息记录介质
    • US4656079A
    • 1987-04-07
    • US743801
    • 1985-06-12
    • Noboru YamadaEiji OhnoKunio Kimura
    • Noboru YamadaEiji OhnoKunio Kimura
    • G11B7/243G11B7/253G11B7/2533B32B15/04G01D15/14G01D15/34
    • G11B7/243G11B2007/24308G11B2007/24312G11B2007/24316G11B2007/2432G11B7/2533Y10S428/913Y10S430/146Y10S430/165Y10T428/24917Y10T428/31507Y10T428/31692Y10T428/31699
    • A reversible optical information recording medium which permits recording, reproducing, erasing and rewriting at high speeds by means of laser beams. The reversible optical information recording medium has a recording thin film which is essentially constituted by Te-Au-O, and Ge or Se. In the system which employs Ge, the recording thin film is formed by addition of at least one selected from a group consisting of Sn, In, Bi and Sb, such as to reduce the Au content in the film composition. On the other hand, in the system which employs Se, a further improvement in the stability of the recorded signal is achievable by the addition of Ge, and an improvement in the recording/erasing sensitivities, particularly erasing sensitivity, can be enhanced by addition of at least one element selected from a group consisting of Sn, In, Bi and Sb. The recording/erasing mechanism in the reversible optical information recording medium of the invention mainly relies upon a change in the optical characteristic which in turn is caused mainly by a reversible phase change of Te. The phase change in the recording medium of the invention can be effected by a laser beam of an extremely low light power density and short irradiation time as compared with that required by the conventional optical information recording medium. This in turn permits much higher speed of recording and erasing of information over the conventional optical information recording medium.
    • 一种可逆光信息记录介质,其允许通过激光束以高速记录,再现,擦除和重写。 可逆光信息记录介质具有基本上由Te-Au-O和Ge或Se构成的记录薄膜。 在采用Ge的系统中,通过添加选自由Sn,In,Bi和Sb组成的组中的至少一种来形成记录薄膜,以减少膜组成中的Au含量。 另一方面,在采用Se的系统中,通过添加Ge可以实现记录信号的稳定性的进一步提高,并且通过添加Ge可以提高记录/擦除灵敏度的提高,特别是擦除灵敏度 选自由Sn,In,Bi和Sb组成的组中的至少一种元素。 本发明的可逆光信息记录介质中的记录/擦除机制主要依赖于光学特性的变化,其特征在于主要由Te的可逆相变引起。 本发明的记录介质的相位变化可以通过与传统的光学信息记录介质所需的相比,具有极低的光功率密度和短的照射时间的激光束来实现。 这又允许在常规光学信息记录介质上记录和擦除信息的速度更高。