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11.发明申请Multiplex recording type hologram recording device, method, hologram reproduction device, and method 失效多重记录型全息记录装置，方法，全息图再生装置及方法公开(公告)号：US20050232125A1
公开(公告)日：2005-10-20
申请号：US10514815
申请日：2003-05-19
申请人： Kazuo Kuroda , Satoshi Sugiura , Shuuici Yanagisawa , Satoru Tanaka , Yoshihisa Itoh , Akihiro Tachibana , Yoshihisa Kubota
发明人： Kazuo Kuroda , Satoshi Sugiura , Shuuici Yanagisawa , Satoru Tanaka , Yoshihisa Itoh , Akihiro Tachibana , Yoshihisa Kubota
IPC分类号： G03H1/10 , G03H1/26 , G06K7/12 , G11B7/0065 , G11B7/125 , G11B7/135 , G11B7/24 , G11C13/04 , G11B7/00
CPC分类号： G11B7/128 , G03H1/26 , G03H1/265 , G03H2001/0232 , G11B7/0065 , G11B7/135 , G11C13/042
摘要： A hologram record apparatus (100) includes a parameter set device (19), a move device (20), and a control device (18). The parameter set device (19) modifies parameters for multiple recordings such as a record angle and a focal depth in relation to at least one of signal light (L3) and reference light (L2) and can fix the parameters. The move device (20) relatively moves the focus position of the signal light and the reference light in the direction along the record surface of a hologram record medium. The control device (18) performs control so that the parameter for the last recording used for recording at the m-th focus position is used as the parameter for the first recording at the m+1-th focus position.
摘要翻译： 全息记录装置（100）包括参数设定装置（19），移动装置（20）和控制装置（18）。 相对于信号光（L 3）和参考光（L 2）中的至少一个，参数设定装置（19）修改诸如记录角度和焦点深度的多个记录的参数，并且可以固定参数。 移动装置（20）沿着全息图记录介质的记录表面的方向相对地移动信号光和参考光的聚焦位置。 控制装置（18）进行控制，使得将用于第m个对焦位置的记录的最后记录的参数用作在第m + 1个焦点位置处的第一次记录的参数。
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公开(公告)号：US20050141067A1
公开(公告)日：2005-06-30
申请号：US11000523
申请日：2004-12-01
申请人： Masakazu Ogasawa , Michio Sakano , Satoru Tanaka , Akihiro Tachibana , Yoshihisa Kubota , Yoshihisa Itoh , Michikazu Hashimoto , Kazuo Kuroda , Satoshi Sugiura
发明人： Masakazu Ogasawa , Michio Sakano , Satoru Tanaka , Akihiro Tachibana , Yoshihisa Kubota , Yoshihisa Itoh , Michikazu Hashimoto , Kazuo Kuroda , Satoshi Sugiura
IPC分类号： G02B5/18 , G02B27/42 , G03H1/00 , G03H1/02 , G03H1/04 , G03H1/10 , G03H1/22 , G03H1/26 , G11B7/00 , G11B7/0065 , G11B7/125 , G11B7/135 , G11B7/24 , G11B7/241
CPC分类号： G03H1/02 , G03H1/0256 , G11B7/0065 , G11B7/1356 , G11B7/1365 , G11B7/2403 , G11B7/24044 , G11B7/241 , G11B7/2531 , G11B7/2533 , G11B7/2585
摘要： A hologram recording medium is a hologram recording medium which is irradiated with light for recording information therein or reproducing information therefrom. The hologram recording medium has a recording layer made of a photo-sensitive material capable of preserving an optical interference pattern, a reflective layer disposed on one side of the recording layer opposite to the side on which an light beam impinges, and a quarter wavelength plate interposed between the recording layer and the reflective layer.
摘要翻译： 全息记录介质是用光照射的全息图记录介质，用于在其中记录信息或从其再现信息。 全息图记录介质具有由能够保持光学干涉图案的光敏材料制成的记录层，设置在与光束入射的一侧相对的记录层的一侧的反射层和四分之一波长板 介于记录层和反射层之间。
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13.发明授权Holographic recording/reproducing apparatus having relative speed controller and method 失效具有相对速度控制器和方法的全息记录/再现装置公开(公告)号：US07688699B2
公开(公告)日：2010-03-30
申请号：US11896402
申请日：2007-08-31
申请人： Akihiro Tachibana , Satoru Tanaka , Yoshihisa Itoh , Yoshihisa Kubota , Kazuo Kuroda , Satoshi Sugiura
发明人： Akihiro Tachibana , Satoru Tanaka , Yoshihisa Itoh , Yoshihisa Kubota , Kazuo Kuroda , Satoshi Sugiura
IPC分类号： G11B7/00
CPC分类号： G11B7/0938 , G11B7/0065 , G11B7/083 , G11B7/1362
摘要： A holographic recording and reproducing apparatus comprises: a pickup for moving an objective lens that focuses a coherent light beam along a recording track on a holographic recording medium and for detecting reflected light from the recording track to perform focus- and tracking-servo control; a relative velocity determination unit for determining a relative velocity of a converging position of the objective lens with respect to the holographic recording medium; a driving unit for changing a relative position of the objective lens with respect to an optical path of the coherent light beam so as to make the relative velocity fall within a predetermined range at least during a predetermined period; and a control unit for performing recording or reproduction for a recording layer during the predetermined period. The holographic recording medium includes a plurality of markers used for positioning an optical interference pattern of the coherent light beam.
摘要翻译： 一种全息记录和再现装置，包括：拾取器，用于移动物镜，沿着记录轨道将相干光束聚焦在全息记录介质上，并用于检测来自记录轨道的反射光，以执行对焦和跟踪伺服控制; 相对速度确定单元，用于确定物镜相对于全息记录介质的会聚位置的相对速度; 驱动单元，用于相对于所述相干光束的光路改变所述物镜的相对位置，以使所述相对速度至少在预定时段期间落在预定范围内; 以及控制单元，用于在预定时段期间执行记录层的记录或再现。 全息记录介质包括用于定位相干光束的光学干涉图案的多个标记。
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14.发明申请Holographic recording/reproducing apparatus having relative speed controller and method 失效具有相对速度控制器和方法的全息记录/再现装置公开(公告)号：US20080002553A1
公开(公告)日：2008-01-03
申请号：US11896402
申请日：2007-08-31
申请人： Akihiro Tachibana , Satoru Tanaka , Yoshihisa Itoh , Yoshihisa Kubota , Kazuo Kuroda , Satoshi Sugiura
发明人： Akihiro Tachibana , Satoru Tanaka , Yoshihisa Itoh , Yoshihisa Kubota , Kazuo Kuroda , Satoshi Sugiura
IPC分类号： G11B7/00
CPC分类号： G11B7/0938 , G11B7/0065 , G11B7/083 , G11B7/1362
摘要： A holographic recording and reproducing apparatus comprises: a pickup for moving an objective lens that focuses a coherent light beam along a recording track on a holographic recording medium and for detecting reflected light from the recording track to perform focus- and tracking-servo control; a relative velocity determination unit for determining a relative velocity of a converging position of the objective lens with respect to the holographic recording medium; a driving unit for changing a relative position of the objective lens with respect to an optical path of the coherent light beam so as to make the relative velocity fall within a predetermined range at least during a predetermined period; and a control unit for performing recording or reproduction for a recording layer during the predetermined period. The holographic recording medium includes a plurality of markers used for positioning an optical interference pattern of the coherent light beam.
摘要翻译： 一种全息记录和再现装置，包括：拾取器，用于移动物镜，沿着记录轨道将相干光束聚焦在全息记录介质上，并用于检测来自记录轨道的反射光，以执行对焦和跟踪伺服控制; 相对速度确定单元，用于确定物镜相对于全息记录介质的会聚位置的相对速度; 驱动单元，用于相对于所述相干光束的光路改变所述物镜的相对位置，以使所述相对速度至少在预定时段期间落在预定范围内; 以及控制单元，用于在预定时段期间执行记录层的记录或再现。 全息记录介质包括用于定位相干光束的光学干涉图案的多个标记。
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15.发明申请Hologram recording/reproducing method and hologram recording/reproducing device 审中-公开全息记录/再现方法和全息记录/再现装置公开(公告)号：US20050231775A1
公开(公告)日：2005-10-20
申请号：US10522687
申请日：2003-07-30
申请人： Yoshihisa Kubota , Satoru Tanaka , Yoshihisa Itoh , Akihiro Tachibana , Kazuo Kuroda , Satoshi Sugiura
发明人： Yoshihisa Kubota , Satoru Tanaka , Yoshihisa Itoh , Akihiro Tachibana , Kazuo Kuroda , Satoshi Sugiura
CPC分类号： G11B7/128 , G03H1/0402 , G03H1/0404 , G03H1/0493 , G03H1/16 , G03H1/26 , G03H2001/0419 , G03H2210/22 , G11B7/0065 , G11B7/1353 , G11B7/24
摘要： A method for holographic recording and reproducing includes a recording process and a reproducing process. In the recording process, a coherent reference beam is spatially modulated in accordance with information to be recorded to generate a signal beam, and the signal beam is converged. The converged signal beam enters and passes through a recording medium made of a photosensitive material. A diffraction grating area according to a light interference pattern is created in a portion where a 0th-order beam and a diffraction beam of the signal beam interfere with each other inside the recording medium. In the reproducing process, a reproduced wave corresponding to the signal beam is generated by illuminating the diffraction grating area with the reference beam.
摘要翻译： 一种用于全息记录和再现的方法包括记录处理和再现处理。 在记录过程中，根据待记录的信息对相干参考光束进行空间调制以产生信号光束，信号光束会聚。 会聚的信号光束进入并通过由感光材料制成的记录介质。 在信号光束的0级光束和衍射光束在记录介质内部彼此干扰的部分中产生根据光干涉图案的衍射光栅区域。 在再现处理中，通过用参考光束照射衍射光栅区域来产生对应于信号光束的再生波。
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公开(公告)号：US20050169094A1
公开(公告)日：2005-08-04
申请号：US10516692
申请日：2003-05-16
申请人： Yoshihisa Itoh , Satoru Tanaka , Akihiro Tachibana , Yoshihisa Kubota , Kazuo Kuroda , Satoshi Sugiura
发明人： Yoshihisa Itoh , Satoru Tanaka , Akihiro Tachibana , Yoshihisa Kubota , Kazuo Kuroda , Satoshi Sugiura
CPC分类号： G03H1/265 , G03H1/16 , G03H1/26 , G03H2260/54 , G11B7/0065
摘要： A hologram recording and reproducing system having compatibility has: a supporting unit for freely attachably supporting a recording medium including a photosensitive material; a signal light-generating unit for projecting a coherent light beam modulated according to a predetermined data into a recording medium and generating a diffraction grating by providing a three-dimensional light interference pattern in the recording medium; a detector unit for detecting and photoelectrically converting a diffracted light from the diffraction grating; and a demodulating unit for demodulating a predetermined data from an output from the detector unit. The detector unit has an intermediate data-generating unit for generating an intermediate data, and the demodulating unit has a conversion table in which the intermediate data and the predetermined data are uniquely associated, and demodulates the predetermined data by performing a computation based on a correlation in the conversion table.
摘要翻译： 具有兼容性的全息图记录和再现系统具有：用于可自由连接地支撑包括感光材料的记录介质的支撑单元; 信号光产生单元，用于将根据预定数据调制的相干光束投射到记录介质中，并通过在记录介质中提供三维光干涉图案来产生衍射光栅; 用于检测和光电转换衍射光栅的衍射光的检测器单元; 以及解调单元，用于从检测器单元的输出解调预定数据。 检测器单元具有用于产生中间数据的中间数据生成单元，并且解调单元具有其中中间数据和预定数据唯一相关联的转换表，并且通过基于相关性执行计算来解调预定数据 在转换表中。
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17.发明授权Optical pickup device with two independent light beams and an integrated prism for providing return light with astigmatism 失效具有两个独立光束的光学拾取装置和用于提供散光的返回光的集成棱镜
公开(公告)号：US5999509A
公开(公告)日：1999-12-07
申请号：US22521
申请日：1998-02-12
CPC分类号： G11B7/1356 , G11B7/0909 , G11B2007/0006
摘要： An optical pickup or an optical head capable of favorably irradiating a plurality of independent different light beams and receiving return light with a simple structure. The optical pickup is composed of a beam emitting unit for supplying at least two independent light beams, a common light converging optical system for converging the light beams from the beam emitting unit to a recording medium, an integrated prism for guiding each of the light beams from the beam emitting unit incident thereto to the light converging optical system and for providing return light from the recording medium incident thereto with astigmatism, and a light receiving element for receiving the return light provided with astigmatism by the prism.
摘要翻译： 能够以简单的结构有利地照射多个独立的不同光束和接收返回光的光学拾取器或光学头。 光拾取器由用于提供至少两个独立光束的光束发射单元组成，用于将来自光束发射单元的光束会聚到记录介质的公共聚光光学系统，用于引导每个光束的一体化棱镜 从入射到其的光束发射单元到聚光光学系统，并用于从入射到其上的记录介质提供具有散光的返回光;以及光接收元件，用于接收由棱镜提供散光的返回光。
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公开(公告)号：US6130872A
公开(公告)日：2000-10-10
申请号：US81982
申请日：1998-05-20
CPC分类号： G11B7/1353 , G11B7/131 , G11B7/13922 , G11B2007/0006 , G11B7/0909
摘要： An optical pickup apparatus which can be designed compact while having a plurality of semiconductor lasers. The optical pickup apparatus, which reads recorded information from an optical recording medium, comprises an optical system including light intensity detection means having a quarter-split light receiving surface, two semiconductor lasers for emitting light beams of different wavelengths, an objective lens for directing each of the light beams onto an optical recording medium to form a light spot on a recording surface, and first and second holographic optical elements located between the quarter-split light receiving surface and the objective lens, whereby the first holographic optical element eliminates coma aberration and spherical aberration of a light beam of a first wavelength from one of the semiconductor lasers, traveled through the recording surface, thereby generating a predetermined amount of astigmatism, and the second holographic optical element eliminates coma aberration and spherical aberration of a light beam of a second wavelength from the other one of the semiconductor lasers, traveled through the recording surface, thereby generating a predetermined amount of astigmatism.
摘要翻译： 可以设计紧凑的光拾取装置，同时具有多个半导体激光器。 从光记录介质读取记录信息的光学拾取装置包括光学系统，其包括具有四分之一分裂光接收表面的光强度检测装置，用于发射不同波长的光束的两个半导体激光器，用于引导每个 的光束到光记录介质上以在记录表面上形成光点，以及位于四分之一分光接收表面和物镜之间的第一和第二全息光学元件，由此第一全息光学元件消除彗差， 来自一个半导体激光器的第一波长的光束的球面像差，行进通过记录表面，从而产生预定量的散光，并且第二全息光学元件消除第二个光束的彗形像差和球面像差 波长从另一个半导体 或激光器行进通过记录表面，从而产生预定量的像散。
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公开(公告)号：US6084841A
公开(公告)日：2000-07-04
申请号：US021938
申请日：1998-02-11
CPC分类号： G11B7/1359 , G11B7/121 , G11B7/1275 , G11B7/1362 , G11B7/1395 , G11B2007/0006
摘要： An optical pickup device includes at least four light-receiving-surface elements, at least two semiconductor lasers, and an optical system for irradiating a light beam onto an optical recording medium through an objective lens for forming a light spot onto an information recording surface thereof. The optical system guides the return light from the light spot to the four light-receiving-surface elements through the objective. The semiconductor lasers are mounted on a plurality of flat side surfaces of a single heat sink which do not exist on a common virtual plane.
摘要翻译： 光拾取装置包括至少四个光接收表面元件，至少两个半导体激光器和用于通过用于在其信息记录表面上形成光点的物镜将光束照射到光学记录介质上的光学系统 。 光学系统通过物镜将来自光点的返回光引导到四个光接收表面元件。 半导体激光器安装在不存在于公共虚拟平面上的单个散热器的多个平坦侧表面上。
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公开(公告)号：US6031667A
公开(公告)日：2000-02-29
申请号：US35444
申请日：1998-03-05
CPC分类号： G11B7/1359 , G11B7/1365 , G11B2007/0006 , G11B2007/13727
摘要： Disclosed is an optical pickup device which comprises a beam emitting system for supplying at least two independent light beams, a common light converging optical system for converging the light beams from the beam emitting system toward a recording medium, a first optical element for reflecting one of the light beams from the beam emitting system so as to guide the reflected light beam to the light converging optical system and for transmitting returning light beams from the recording medium therethrough without causing substantial aberration, a second optical element for causing astigmatic aberration to the returned light beams which pass through the first optical element, while transmitting the returning light beams therethrough, and a light receiving system for receiving the returning light beams which have passed through the second optical element.
摘要翻译： 公开了一种光拾取装置，其包括用于提供至少两个独立光束的光束发射系统，用于将来自光束发射系统的光束会聚到记录介质的公共聚光光学系统，用于反射 来自光束发射系统的光束，以将反射光束引导到聚光光学系统，并且用于从记录介质通过返回光束而不产生实质的像差;第二光学元件，用于引起对返回光的散光像差 通过第一光学元件的光束同时透射返回的光束;以及光接收系统，用于接收已经通过第二光学元件的返回光束。
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