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    Hologram recording device and hologram reproduction device
    1.
    发明授权
    Hologram recording device and hologram reproduction device 失效
    全息记录装置和全息图再现装置

    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。

    Hologram system
    2.
    发明申请
    Hologram system 审中-公开
    全息图系统

    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。

    Optical pickup apparatus
    3.
    发明授权
    Optical pickup apparatus 失效
    光拾取装置

    公开(公告)号：US6130872A

    公开(公告)日：2000-10-10

    申请号：US81982

    申请日：1998-05-20

    申请人： Satoshi Sugiura ,  Akihiro Tachibana ,  Yoshihisa Kubota

    发明人： Satoshi Sugiura ,  Akihiro Tachibana ,  Yoshihisa Kubota

    IPC分类号： G02B5/32 ,  G02B13/00 ,  G11B7/00 ,  G11B7/09 ,  G11B7/125 ,  G11B7/13 ,  G11B7/135

    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。

    Optical pickup device having heat radiating mechanism
    5.
    发明授权
    Optical pickup device having heat radiating mechanism 失效
    具有散热机构的光拾取装置

    公开(公告)号：US6084841A

    公开(公告)日：2000-07-04

    申请号：US021938

    申请日：1998-02-11

    申请人： Satoshi Sugiura ,  Akihiro Tachibana ,  Yoshihisa Kubota

    发明人： Satoshi Sugiura ,  Akihiro Tachibana ,  Yoshihisa Kubota

    IPC分类号： G11B7/09 ,  G11B7/00 ,  G11B7/125

    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。

    Optical pickup device
    6.
    发明授权
    Optical pickup device 失效
    光学拾取装置

    公开(公告)号：US6031667A

    公开(公告)日：2000-02-29

    申请号：US35444

    申请日：1998-03-05

    申请人： Satoshi Sugiura ,  Akihiro Tachibana ,  Yoshihisa Kubota

    发明人： Satoshi Sugiura ,  Akihiro Tachibana ,  Yoshihisa Kubota

    IPC分类号： G11B7/00 ,  G11B7/125 ,  G11B7/135 ,  G02B27/10 ,  G02B27/30

    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。

    Hologram recording device and hologram reproduction device
    9.
    发明申请
    Hologram recording device and hologram reproduction device 失效
    全息记录装置和全息图再现装置

    公开(公告)号：US20050185230A1

    公开(公告)日：2005-08-25

    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： G02F1/01 ,  G02F1/061 ,  G02F1/13 ,  G03H1/04 ,  G03H1/16 ,  G03H1/26 ,  G11B7/0065 ,  G11B7/125 ,  G11C13/04 ,  G03H1/02

    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。