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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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12.发明授权Astigmatism generating device to remove comma aberration and spherical aberration 失效散光产生装置去除逗号差异和球面像差公开(公告)号：US06445668B2
公开(公告)日：2002-09-03
申请号：US09085229
申请日：1998-05-27
IPC分类号： G11B700
CPC分类号： G11B7/1365 , G11B7/0909 , G11B7/1353 , G11B7/1381 , G11B2007/0006
摘要： An optical pickup device includes a photodetector divided into four light-receiving elements by two dividing lines, an incident optical system for irradiating a light beam onto an optical recording medium, and a receiving optical system for guiding a return light from the optical recording medium to the photodetector, wherein the receiving optical system includes astigmatism generating means for generating astigmatism having an astigmatism axis at an angle of 45 degree with respect to the two dividing lines.
摘要翻译： 光拾取装置包括通过两条分割线分成四个光接收元件的光电检测器，用于将光束照射到光记录介质上的入射光学系统和用于将来自光记录介质的返回光引导到 所述光检测器，其中所述接收光学系统包括散光产生装置，用于产生具有相对于所述两条分割线成45度角的像散轴的像散。
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公开(公告)号：US07206105B2
公开(公告)日：2007-04-17
申请号：US10514826
申请日：2003-05-19
申请人： Kazuo Kuroda , Satoshi Sugiura , Shuuichi Yanagisawa , Satoru Tanaka , Yoshihisa Itoh , Akihiro Tachibana , Yoshihisa Kubota
发明人： Kazuo Kuroda , Satoshi Sugiura , Shuuichi Yanagisawa , Satoru Tanaka , Yoshihisa Itoh , Akihiro Tachibana , Yoshihisa Kubota
IPC分类号： G02B1/02
CPC分类号： G11B7/128 , G03H1/0841 , G03H1/16 , G03H1/26 , G03H2210/22 , G03H2225/22 , G11B7/0065 , G11C13/042
摘要： A hologram record apparatus (100) includes a spatial light modulator (15) and a control device (18). The spatial light modulator (15) is arranged on an optical path of signal light (L1) and divided into a plurality of cell blocks (151) arranged in a matrix. Each of the cell blocks (151) is further divided into a plurality of cells (152) arranged in a matrix. The spatial light modulator (15) can perform modulation on the cell basis. The control device (18) controls the spatial light modulator so as to modulate the signal light according to a plurality of record information sets to be recorded on a hologram record medium (200). Pluralities of modulation units (153) existing in the same cell block are not made into identical patterns. Since a plurality of cell blocks having a large pitch as compared to the pixel pitch are simultaneously or successively turned on/off, it is possible to reduce the distance between the zeroth-order light and the higher-order light.
摘要翻译： 全息记录装置（100）包括空间光调制器（15）和控制装置（18）。 空间光调制器（15）被布置在信号光（L 1）的光路上，并被分成以矩阵排列的多个单元块（151）。 每个单元块（151）进一步被划分成矩阵排列的多个单元（152）。 空间光调制器（15）可以基于单元进行调制。 控制装置（18）控制空间光调制器，以便根据要记录在全息记录介质（200）上的多个记录信息集来调制信号光。 存在于相同单元块中的多个调制单元（153）不被制成相同的模式。 由于与像素间距相比具有大间距的多个单元块同时或连续地导通/截止，所以可以减少零级光和高阶光之间的距离。
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公开(公告)号：US20060164705A1
公开(公告)日：2006-07-27
申请号：US10522679
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
IPC分类号： G02B5/32
CPC分类号： G06K7/10663 , G11B7/0065
摘要： A compatible hologram system has a supporting part for loadably supporting a recording medium made of a photosensitive material, a signal generating part for allowing a coherent beam modulated in response to predetermined data to enter the recording medium and providing a three-dimensional light interference pattern therewithin to produce a diffraction grating, and a data processing part for detecting reproduced data by diffracted light from the diffraction grating and demodulating the data to the predetermined data. The recording medium has a reference data area in which a reference diffraction grating corresponding to a three-dimensional light interference pattern of a coherent light beam modulated in response to reference data has been stored in advance, a sector data area in which sector data is recorded, and a user data area in which user data is recorded. The hologram system corrects the reproduced data in response to the reference data reproduced from the reference diffraction grating stored in the reference data area, the sector data reproduced from the sector area, and reference data provided within a reference memory of the data processing part, and demodulates the data to the predetermined data.
摘要翻译： 兼容的全息图系统具有用于负载地支撑由感光材料制成的记录介质的支撑部件，用于允许响应于预定数据调制的相干光束进入记录介质并在其中提供三维光干涉图案的信号产生部件 以产生衍射光栅，以及数据处理部分，用于通过来自衍射光栅的衍射光检测再现数据，并将数据解调为预定数据。 记录介质具有参考数据区域，其中预先存储了对应于响应于参考数据调制的相干光束的三维光干涉图案的参考衍射光栅，其中记录了扇区数据的扇区数据区域 以及记录用户数据的用户数据区域。 全息图系统响应于从存储在参考数据区域中的参考衍射光栅再现的参考数据，从扇区区域再现的扇区数据和提供在数据处理部分的参考存储器内的参考数据，校正再现数据，以及 将数据解调为预定数据。
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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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18.发明授权Angle-multiplexing hologram recording device, method, hologram reproduction device, and method 失效角复用全息图记录装置，方法，全息图再现装置和方法公开(公告)号：US07339711B2
公开(公告)日：2008-03-04
申请号：US10514627
申请日：2003-05-19
申请人： Kazuo Kuroda , Satoshi Sugiura , Shuuichi Yanagisawa , Satoru Tanaka , Yoshihisa Itoh , Akihiro Tachibana , Yoshihisa Kubota
发明人： Kazuo Kuroda , Satoshi Sugiura , Shuuichi Yanagisawa , Satoru Tanaka , Yoshihisa Itoh , Akihiro Tachibana , Yoshihisa Kubota
IPC分类号： G11B7/00
CPC分类号： G11C13/042 , G03H1/265 , G03H2001/0232 , G11B7/0065 , G11B7/135
摘要： A hologram recording apparatus (100) includes a record angle change device (19) capable of relatively changing the record angle of a hologram recording medium (200) relative to signal light (L3) and reference light (L2); and a control device (18). The control device sets a record angle for recording a specific angle record plane as a standard record angle among a plurality of angle record planes on the hologram recording medium. Furthermore, the control device controls the record angle change device so as to change and fix the record angle after then by a predetermined angle from the set standard record angle.
摘要翻译： 全息记录设备（100）包括能够相对于信号光（L 3）和参考光（L 2）相对地改变全息图记录介质（200）的记录角度的记录角度改变装置（19）。 和控制装置（18）。 控制装置在全息图记录介质上的多个角度记录平面之间设置用于记录特定角度记录平面作为标准记录角度的记录角度。 此外，控制装置控制记录角度改变装置，从而从设定的标准记录角度改变并固定记录角度，然后固定预定角度。
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公开(公告)号：US07170661B2
公开(公告)日：2007-01-30
申请号：US11000523
申请日：2004-12-01
申请人： Masakazu Ogasawara , Michio Sakano , Satoru Tanaka , Akihiro Tachibana , Yoshihisa Kubota , Yoshihisa Itoh , Michikazu Hashimoto , Kazuo Kuroda , Satoshi Sugiura
发明人： Masakazu Ogasawara , Michio Sakano , Satoru Tanaka , Akihiro Tachibana , Yoshihisa Kubota , Yoshihisa Itoh , Michikazu Hashimoto , Kazuo Kuroda , Satoshi Sugiura
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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20.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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