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1.发明授权Optical memory medium and its information recording and erasing method and apparatus 失效光存储介质及其信息记录和擦除方法及装置
公开(公告)号：US5177717A
公开(公告)日：1993-01-05
申请号：US754229
申请日：1991-08-28
申请人： Yoshio Sato , Atsumi Watanabe , Satoshi Shimada , Hiroshi Sasaki , Nobuyoshi Tsuboi , Hideki Nihei , Norifumi Miyamoto , Hiroaki Koyanagi , Hiroyuki Minemura
发明人： Yoshio Sato , Atsumi Watanabe , Satoshi Shimada , Hiroshi Sasaki , Nobuyoshi Tsuboi , Hideki Nihei , Norifumi Miyamoto , Hiroaki Koyanagi , Hiroyuki Minemura
IPC分类号： G11B7/0055 , G11B7/007 , G11B7/24
CPC分类号： G11B7/24 , G11B7/00557 , G11B7/00745
摘要： An information recording and erasing method and apparatus of an optical memory medium including a substrate, a guard film, and an intermediate layer portion so disposed between said substrate and said guard film as to include at least a recording material layer having a phase changing with temperature and include at least one good conductor layer, comprising the steps of supplying magnetic flux varying relatively to said good conductor layer to generate eddy currents within said good conductor layer, and heating said recording material layer with heat generated in said good conductor due to the eddy current loss to effect information recording and erasing with respect to said recording material layer.
摘要翻译： 一种光学存储介质的信息记录和擦除方法和装置，包括基板，保护膜和中间层部分，其设置在所述基板和所述保护膜之间，至少包括具有相变温度的记录材料层 并且包括至少一个良好导体层，包括以下步骤：提供相对于所述良好导体层变化的磁通量，以在所述良好导体层内产生涡流，并且由于涡流而在所述良导体中产生的热量加热所述记录材料层 影响相对于所述记录材料层的信息记录和擦除的电流损耗。
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2.发明授权
公开(公告)号：US4718053A
公开(公告)日：1988-01-05
申请号：US795313
申请日：1985-11-06
申请人： Yoshio Sato , Satoshai Shimada , Hiroshi Sasaki , Norifumi Miyamoto , Nobuyoshi Tsuboi , Hideki Nihei , Ryuji Watanabe , Atsumi Watanabe , Tetsuo Ito , Hiroaki Koyanagi
发明人： Yoshio Sato , Satoshai Shimada , Hiroshi Sasaki , Norifumi Miyamoto , Nobuyoshi Tsuboi , Hideki Nihei , Ryuji Watanabe , Atsumi Watanabe , Tetsuo Ito , Hiroaki Koyanagi
IPC分类号： G11B7/0055 , G11B7/013 , G11B7/09 , G11B7/135 , G11B7/24085 , G11B7/243 , G11B7/257 , G11B7/095 , G11B7/24
CPC分类号： G11B7/257 , G11B7/00557 , G11B7/135 , G11B7/24085 , G11B7/243 , G11B2007/13727 , G11B2007/24304 , G11B2007/24308 , G11B7/0909
摘要： The present invention employs as a recording medium a metal or alloy which exhibits an intercrystalline transition before and after writing. In the present invention, two light beams of unequal wavelengths are used so as to write information with the light beam of the longer wavelength and to erase information with the light beam of the shorter wavelength. In changing a written content, a wavelength with which the reflection rate of the recording medium increases is used.
摘要翻译： 本发明在记录介质之前和之后使用表现出晶间转变的金属或合金作为记录介质。 在本发明中，使用两个不等波长的光束，以便用较长波长的光束写入信息，并用较短波长的光束擦除信息。 在改变书写内容时，使用记录介质的反射率增加的波长。
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公开(公告)号：US4773060A
公开(公告)日：1988-09-20
申请号：US804163
申请日：1985-12-03
申请人： Satoshi Shimada , Yoshio Sato , Hiroshi Sasaki , Nobuyoshi Tsuboi , Tetsuo Ito , Hideki Nihei , Norifumi Miyamoto , Hiroaki Koyanagi , Kanji Kawakami
发明人： Satoshi Shimada , Yoshio Sato , Hiroshi Sasaki , Nobuyoshi Tsuboi , Tetsuo Ito , Hideki Nihei , Norifumi Miyamoto , Hiroaki Koyanagi , Kanji Kawakami
IPC分类号： G11B7/00 , G11B7/003 , G11B7/0055 , G11B7/013 , G11B7/24 , G11B7/243 , G11B7/30 , G11B11/00 , G11B13/00
CPC分类号： G11B7/00454 , G11B7/003 , G11B7/243 , G11B2007/24306 , G11B2007/24308 , G11B2007/2431 , G11B2007/24312
摘要： A film of a crystal - crystal phase transformation type optical recording alloy is formed on an insulating substrate. Information is erased from the alloy film by heating it with an expedient other than a laser beam. Information is read by sensing reflected light of light projected on the alloy film.
摘要翻译： 在绝缘基板上形成晶体相变型光学记录合金的膜。 通过加热除了激光束以外的其它方法，从合金膜中消除信息。 通过感测投射在合金膜上的光的反射光来读取信息。
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公开(公告)号：US4811328A
公开(公告)日：1989-03-07
申请号：US803611
申请日：1985-12-02
申请人： Tetsuo Ito , Hiroshi Sasaki , Yoshio Sato , Satoshi Shimada , Norifumi Miyamoto , Nobuyoshi Tsuboi , Hideki Nihei , Hiroaki Koyanagi
发明人： Tetsuo Ito , Hiroshi Sasaki , Yoshio Sato , Satoshi Shimada , Norifumi Miyamoto , Nobuyoshi Tsuboi , Hideki Nihei , Hiroaki Koyanagi
IPC分类号： G11B7/00 , G11B7/0055 , G11B7/125 , G11B7/135 , G11B7/30
CPC分类号： G11B7/1395
摘要： A laser light flux is divided and synthesized so that its light intensity distribution is changed from a Gaussian distribution to a non-Gaussian distribution. When a laser light flux having a Gaussian distribution is irradiated onto a dividing prism, it is divided into a left part and a right part which are refracted right and left inversely from each other. When the right and left parts are incident on a synthesizing prism, they are refracted again and travel to be overlapped with each other on a recording medium. The light intensity distribution on a segment at the apex of the synthesizing prism is weaker at the central part and stronger at the peripheral part. This is because the light fluxes resulting from the division are inverted in their position so that the central part of the Gaussian distribution is separated left and right while the peripheral part with a weaker light intensity is centered.
摘要翻译： 激光光束被分割和合成，使其光强分布从高斯分布变为非高斯分布。 当具有高斯分布的激光束被照射到分割棱镜上时，它被分成左右折射，左右折射。 当左右部分入射到合成棱镜上时，它们被再次折射并在记录介质上相互重叠。 合成棱镜顶点的光束强度分布在中心部分较弱，周边部分强度分布较强。 这是因为由分割产生的光束在其位置反转，使得高斯分布的中心部分左右分离，而具有较弱光强度的周边部分居中。
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公开(公告)号：US4775967A
公开(公告)日：1988-10-04
申请号：US786499
申请日：1985-10-11
申请人： Satoshi Shimada , Hiroshi Sasaki , Nobuyoshi Tsuboi , Hideki Nihei , Norifumi Miyamoto , Ito Tetsuo , Yoshio Sato , Atsumi Watanabe , Ryo Hiraga
发明人： Satoshi Shimada , Hiroshi Sasaki , Nobuyoshi Tsuboi , Hideki Nihei , Norifumi Miyamoto , Ito Tetsuo , Yoshio Sato , Atsumi Watanabe , Ryo Hiraga
CPC分类号： G11B7/1353 , G11B7/08 , G11B7/0937 , G11B7/1372 , G11B7/0909
摘要： In the present invention, a micro Fresnel lens in the shape of a thin film is used. A lens driving member constructed of piezoelectric transducers or of magnets and coils is disposed around the lens. The focus of the lens is adjusted by controlling applied voltages to the piezoelectric transducers or the coils.
摘要翻译： 在本发明中，使用薄膜形状的微型菲涅尔透镜。 由压电换能器或磁体和线圈构成的透镜驱动部件设置在透镜周围。 通过控制对压电换能器或线圈的施加电压来调整透镜的焦点。
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公开(公告)号：US4862440A
公开(公告)日：1989-08-29
申请号：US098969
申请日：1987-09-09
申请人： Norifumi Miyamoto , Yoshio Sato , Nobuyoshi Tsuboi , Satoshi Shimada , Hiroshi Sasaki , Hiroaki Koyanagi , Hiroyuki Minemura
发明人： Norifumi Miyamoto , Yoshio Sato , Nobuyoshi Tsuboi , Satoshi Shimada , Hiroshi Sasaki , Hiroaki Koyanagi , Hiroyuki Minemura
CPC分类号： G11B7/08547 , G11B7/1245 , G11B7/1369 , G11B7/0912
摘要： An optical head is disclosed, in which a plate-shaped optical wave guide comprises an optical system including a collimator lens, a beam splitter and an objective lens; a laser light source for emitting a laser light in the form of a light beam which is to be impinged on an optical recording medium; and electro-acoustic transducers are disposed between the beam splitter and the objective lens, the transducers being adapted to be driven by the outer electrical signal for producing surface acoustic waves in the optical wave guide, thereby establishing a condensation and rarefaction distribution in refractive index in the optical wave guide which distribution influences the direction of transmission and the degree of focusing of the light beam passing therethrough so that regulation of the tracking and the focal length can be effected without any mechanical movements.
摘要翻译： 公开了一种光学头，其中板状光波导包括包括准直透镜，分束器和物镜的光学系统; 用于发射将要照射在光学记录介质上的光束形式的激光的激光源; 并且电声换能器设置在分束器和物镜之间，换能器适于由外部电信号驱动，以在光波导中产生表面声波，由此在折射率中建立冷凝和稀疏分布 分布影响透射方向的光波导和通过其的光束的聚焦程度，从而可以在没有任何机械运动的情况下实现跟踪调节和焦距。
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公开(公告)号：US4937808A
公开(公告)日：1990-06-26
申请号：US151567
申请日：1988-02-02
申请人： Satoshi Shimada , Shinji Ohyama , Manabu Sato , Masahiko Ibamoto , Yoshio Sato , Nobuyoshi Tsuboi , Norifumi Miyamoto , Hiroyuki Minemura , Hiroaki Koyanagi
发明人： Satoshi Shimada , Shinji Ohyama , Manabu Sato , Masahiko Ibamoto , Yoshio Sato , Nobuyoshi Tsuboi , Norifumi Miyamoto , Hiroyuki Minemura , Hiroaki Koyanagi
CPC分类号： G02B6/124 , G02B6/12004 , G02B6/1245 , G11B7/0912 , G11B7/1245
摘要： An optical head including a substrate, an optical waveguide formed on the substrate, a light source formed on a portion of the substrate, a collimator lens for converting light from the light source into parallel light rays, an objective lens for focusing light from the collimator lens onto a recording medium and for converting reflected light from the recording medium into parallel light rays, a beam splitter for dividing light from the objective lens into two parts to send out one of the parts in a predetermined direction, a coupling lens for focusing light from the beam splitter on a position, and a photodetector for detecting light from the coupling lens, is disclosed, in which the collimator lens, the objective lens, the beam splitter, the coupling lens and the photodetector are integrated on the substrate, and the collimator lens or an objective lens supporting part is made flexible to vary the position of the focus of the collimator lens or objective lens by piezo-electric elements.
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公开(公告)号：US4841514A
公开(公告)日：1989-06-20
申请号：US919421
申请日：1986-10-16
IPC分类号： G11B7/00 , G11B7/0045 , G11B7/0055 , G11B7/006 , G11B7/125 , G11B7/135 , G11B7/30
摘要： A light spot determining a first condition that an optical recording medium is cooled after being heated to a temperature exceeding a first temperature and a light spot determining a second condition that the optical recording medium is cooled after being heated to a temperature exceeding a second temperature higher than the room temperature and not exceeding the first temperature higher than the second temperature, namely, the two light spots are radiated onto the optical recording medium and in the same guide track thereof wherein signals are recorded and erased on the optical recording medium by controlling the spot diameter of each light spot and/or the light intensity thereof.
摘要翻译： 确定光学记录介质在被加热到超过第一温度的温度后被冷却的第一条件的光点和确定光学记录介质在被加热到超过第二温度的温度之后被冷却的第二条件的光点 比室温高并且不超过高于第二温度的第一温度，即，两个光点被辐射到光记录介质上，并且在相同的导轨中，其中通过控制光记录介质在光记录介质上记录和擦除信号 每个光点的光斑直径和/或其光强度。
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9.发明授权
公开(公告)号：US4978187A
公开(公告)日：1990-12-18
申请号：US357171
申请日：1989-05-26
摘要： A waveguide path type optical pickup is provided for preventing a returning light from returning back to a light source. A filter for selectively allowing either Te polarized light or TM polarized light to pass through the filter is provided in an optical path from a light source to an optical path deflector. An optical part for changing the polarized state of light is provided in an optical path from the optical path changing part to an information recording medium, thereby prevent a reduction in S/N ratio or reproducing signal.
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10.发明授权Method and apparatus of optical modulation using superconductive oxide material 失效使用超导氧化物材料进行光学调制的方法和装置
公开(公告)号：US5110792A
公开(公告)日：1992-05-05
申请号：US431231
申请日：1989-11-03
申请人： Takahiro Nakayama , Kunihiro Tamahashi , Moriaki Fuyama , Hiroyuki Minemura , Yoshio Sato , Nobuyoshi Tsuboi , Hiroaki Koyanagi
发明人： Takahiro Nakayama , Kunihiro Tamahashi , Moriaki Fuyama , Hiroyuki Minemura , Yoshio Sato , Nobuyoshi Tsuboi , Hiroaki Koyanagi
IPC分类号： G02F1/01
CPC分类号： G02F1/01 , Y10S505/702 , Y10S505/828 , Y10S505/848
摘要： An optical modulation method and apparatus uses superconductive oxide material for the optical modulation element. The current, magnetic field, temperature or pressure applied to the superconductive oxide material is varied so as to induce a superconduction-normalconduction transition, and the resulting variation in optical characteristics such as the reflectivity, transmissivity or refractive index of the superconductive oxide material modulate the input light. The method and apparatus are fast in operation and simple in structure. The method and apparatus also detect the variation in the current, magnetic field, temperature or pressure as a change in the reflectivity, transmissivity or refractive index of the superconductive oxide material on the basis of a superconduction-normalconduction transition.
摘要翻译： 光调制方法和装置使用超导氧化物材料作为光调制元件。 改变施加到超导氧化物材料的电流，磁场，温度或压力，以便引起超导 - 正常的导电转变，并且由此导致的超导氧化物材料的光学特性如反射率，透射率或折射率的变化调制 输入光。 该方法和装置操作简单，结构简单。 该方法和装置还根据超导 - 正常的导电转变，检测电流，磁场，温度或压力的变化，作为超导氧化物材料的反射率，透射率或折射率的变化。
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