公开(公告)号：US20100039918A1

公开(公告)日：2010-02-18

申请号：US12505242

申请日：2009-07-17

申请人： Tomiji Tanaka

发明人： Tomiji Tanaka

IPC分类号： G11B7/00

CPC分类号： G03H1/22 ,  G03H1/2249 ,  G03H2001/2223 ,  G11B7/0065 ,  G11B7/00772 ,  G11B7/00781 ,  G11B7/083 ,  G11B7/127

摘要： A hologram recording/reproducing device includes an optical section which irradiates a holographic recording medium with an optical beam; and a control unit which controls the optical section. The optical section includes a laser light source which emits the optical beam, and a spatial modulator which modulates the optical beam. By controlling the spatial modulator, the control unit displays a tilt-standard reference light pixel and a tilt-standard signal light pixel, and records a tilt-standard hologram.

摘要翻译： 全息记录/再现装置包括用全息记录介质照射光束的光学部分; 以及控制单元，其控制光学部分。 光学部分包括发射光束的激光光源和调制光束的空间调制器。 通过控制空间调制器，控制单元显示倾斜标准参考光像素和倾斜标准信号光像素，并记录倾斜标准全息图。

公开(公告)号：US07580433B2

公开(公告)日：2009-08-25

申请号：US11742800

申请日：2007-05-01

申请人： Tomiji Tanaka ,  Kageyasu Sako ,  Ryo Kasegawa ,  Shinji Yamada ,  Katsuhiro Agatsuma

发明人： Tomiji Tanaka ,  Kageyasu Sako ,  Ryo Kasegawa ,  Shinji Yamada ,  Katsuhiro Agatsuma

IPC分类号： H01S3/04

CPC分类号： G01J9/00 ,  G01J9/0246 ,  G01J2009/0234 ,  H01S5/0014 ,  H01S5/0071 ,  H01S5/0612 ,  H01S5/0654 ,  H01S5/141 ,  H01S5/143

摘要： A laser system includes a laser diode that oscillates in a multi-mode and has characteristics in which its oscillation wavelength varies with temperature, a grating that receives a light beam emitted from the laser diode and returns a diffracted beam to the laser diode, a mechanism that changes the wavelength of the diffracted beam returned to the laser diode, a wavelength detector that detects the wavelength of an output beam which is the same as that of the diffracted beam returned to the laser diode, a temperature regulator that maintains the laser diode at a predetermined temperature, and a control unit that controls the mechanism so that the output beam having a predetermined wavelength is output and controls the temperature regulator so that the laser diode oscillates at the predetermined wavelength.

摘要翻译： 激光系统包括以多模振荡并具有其振荡波长随温度变化的特性的激光二极管，接收从激光二极管发射的光束并将衍射光束返回到激光二极管的光栅，机构 其改变了返回到激光二极管的衍射光束的波长，检测与返回到激光二极管的衍射光束相同的输出光束的波长的波长检测器，将激光二极管保持在 以及控制单元，其控制机构，使得具有预定波长的输出光束被输出并控制温度调节器，使得激光二极管以预定波长振荡。

公开(公告)号：US07426222B2

公开(公告)日：2008-09-16

申请号：US11425005

申请日：2006-06-19

申请人： Tomiji Tanaka ,  Kageyasu Sako ,  Ryo Kasegawa

发明人： Tomiji Tanaka ,  Kageyasu Sako ,  Ryo Kasegawa

IPC分类号： H01S5/0683 ,  H01S5/14

CPC分类号： G01J9/0246

摘要： A laser apparatus is disclosed. An optical element receives at least a part of laser light emitted from a laser generation source and generates interference fringes. Each of first and second two-divided detectors has two detectors arranged in the direction of which the interference fringes appear. Each of the detectors detects an amount of light of the interference fringes. These two-divided detectors are spaced apart for an odd-number multiple of nearly ¼ period of interference fringes and disposed on a plane perpendicular to an optical path of the interference fringes. Each of first and second calculation sections calculates a first difference signal of detection signals of two detectors of the two-divided detector. A selection section selects one of the first and second difference signals. A determination section determines a wavelength of the laser light corresponding to a value of the difference signal selected from the first and second difference signals.

摘要翻译： 公开了一种激光装置。 光学元件接收从激光发生源发射的至少一部分激光，并产生干涉条纹。 第一和第二二分割检测器中的每一个具有布置在干涉条纹出现的方向上的两个检测器。 每个检测器检测干涉条纹的光量。 这两个分开的检测器间隔开几个1/4的干涉条纹的奇数倍，并设置在与干涉条纹的光路垂直的平面上。 第一和第二计算部分中的每一个计算双分割检测器的两个检测器的检测信号的第一差分信号。 选择部分选择第一和第二差分信号之一。 确定部分确定与从第一和第二差分信号中选择的差分信号的值相对应的激光的波长。

公开(公告)号：US20080037088A1

公开(公告)日：2008-02-14

申请号：US11824518

申请日：2007-06-29

申请人： Kageyasu Sako ,  Tomiji Tanaka

发明人： Kageyasu Sako ,  Tomiji Tanaka

IPC分类号： G03H1/04

CPC分类号： G03H1/0486 ,  G03H1/202 ,  G03H2001/0296 ,  G11B7/0065 ,  G11B7/261

摘要： An apparatus for producing a duplicate hologram recording medium includes: a positioning section configured to place the duplication master and the duplicate hologram recording medium at predetermined relative positions; an angle selective plate arranged between the duplication master and the duplicate hologram recording medium, the angle selective plate having an angle selective film whose transmittance changes in accordance with an incidence angle of a light beam; and a duplicating-reference-beam generating and radiating section generating a duplicating reference beam, and radiating the duplicating reference beam at such an incidence angle that the duplicating reference beam is transmitted through a predetermined region of a recording layer of the duplication master and is reflected by the angle selective film.

摘要翻译： 一种重复全息图记录介质的制造装置，其特征在于，具备：将复制主体和复制全息图记录介质配置在规定的相对位置的定位部， 布置在复制主体和复制全息图记录介质之间的角度选择板，所述角度选择板具有根据光束的入射角而透射率变化的角度选择膜; 以及生成复制参考光束的复制参考光束产生和辐射部分，并且以复制参考光束通过复制主记录的记录层的预定区域传播的入射角辐射复制参考光束，并被反射 通过角度选择膜。

公开(公告)号：US07310173B2

公开(公告)日：2007-12-18

申请号：US10541608

申请日：2003-12-26

申请人： Tomiji Tanaka ,  Mikio Sugiki ,  Shigeo Kobayashi ,  Koji Ishioka ,  Kazuo Takahashi ,  Toshiyuki Nakagawa

发明人： Tomiji Tanaka ,  Mikio Sugiki ,  Shigeo Kobayashi ,  Koji Ishioka ,  Kazuo Takahashi ,  Toshiyuki Nakagawa

IPC分类号： G02B5/32

CPC分类号： G11B7/0065 ,  G03H2225/11 ,  G03H2225/24

摘要： In the hologram recording and hologram-record reproduction using a one-dimensional optical modulator, the one-dimensional optical modulator where a plurality of light-modulating pixels are arranged modulates a laser beam to record a digital-data signal on a hologram recording medium, and part of the light-modulating pixels record sync signals in two or more positions on the hologram recording medium with retaining a predetermined interval, thereby improving hindrance to reproduction or readout of information recorded on the hologram recording medium, a decrease in S/N, and so on due to deformation or the like of the hologram recording medium.

摘要翻译： 在使用一维光调制器的全息图记录和全息记录再现中，其中布置多个光调制像素的一维光调制器调制激光束以在全息图记录介质上记录数字数据信号， 并且光调制像素的一部分以保持预定间隔在全息图记录介质上的两个或更多个位置记录同步信号，从而改善对记录在全息图记录介质上的信息的再现或读出的阻碍，S / N的减小， 由于全息记录介质的变形等而导致的。

公开(公告)号：US20070258118A1

公开(公告)日：2007-11-08

申请号：US11683249

申请日：2007-03-07

申请人： Mitsuru Toishi ,  Tomiji Tanaka ,  Atsushi Fukumoto ,  Kenjiro Watanabe

发明人： Mitsuru Toishi ,  Tomiji Tanaka ,  Atsushi Fukumoto ,  Kenjiro Watanabe

IPC分类号： G03H1/12

CPC分类号： G11B7/0065 ,  G03H1/12 ,  G11B7/00781 ,  G11B7/0938 ,  G11B7/126 ,  G11B7/128 ,  G11B7/1378 ,  G11B2007/13727

摘要： A hologram recording and reconstruction apparatus records and reconstructs a hologram in a recording layer of a holographic recording medium using a signal light beam and a reference light beam is provided. The hologram recording and reconstruction apparatus includes an objective lens for allowing the signal light beam, the reference light beam, and a diffracted light beam to pass therethrough, a spatial light modulator on which a reference light beam pattern for generating the reference light beam is displayed, a temperature sensor for detecting the temperature of the holographic recording medium, and a control unit for controlling the spatial light modulator to reduce the reference light beam pattern so that the reference light beam passes through the more inner portion of the objective lens or enlarge the reference light beam pattern so that the reference light beam passes through the more outer portion of the objective lens in accordance with the temperature.

摘要翻译： 全息记录和重建装置使用信号光束和参考光束来记录和重建全息记录介质的记录层中的全息图。 全息记录重建装置包括用于允许信号光束，参考光束和衍射光束通过的物镜，其上显示用于产生参考光束的参考光束图案的空间光调制器 ，用于检测全息记录介质的温度的温度传感器，以及控制单元，用于控制空间光调制器以减小参考光束图案，使得参考光束通过物镜的更多内部，或者扩大 参考光束图案，使得参考光束根据温度通过物镜的更外部部分。

公开(公告)号：US20070146838A1

公开(公告)日：2007-06-28

申请号：US10593564

申请日：2005-03-25

申请人： Mitsuru Toishi ,  Hitoshi Okada ,  Tomiji Tanaka

发明人： Mitsuru Toishi ,  Hitoshi Okada ,  Tomiji Tanaka

IPC分类号： G03H1/12

CPC分类号： G11B7/0065 ,  G03H1/28 ,  G11B7/00772 ,  G11B7/128

摘要： A hologram recording device can easily perform multiplex recording/reproduction on a hologram recording medium. The hologram recording device includes an optical system and a distance controlling mechanism. The optical system focuses on a substantially same location of a hologram recording medium a signal light modulated at a light modulating element and a reference light whose phase has been modulated at a phase modulating element. The distance controlling mechanism controls a distance between the phase modulating element and the hologram recording medium. By controlling the distance between the phase modulating element and the hologram recording medium, multiplex recording can be performed on the hologram recording medium. In an ordinary phase-correlation multiplexing method, multiplex recording is performed as a result of shifting a light-focusing location in the direction of a surface of the hologram recording medium, whereas, in the present invention, it is possible to perform the multiplex recording without shifting the light-focusing location in the direction of the surface of the hologram recording medium. It is possible to further increase recording capacity as a result of shifting the light-focusing location in the direction of the surface of the hologram recording medium. Here, compared to the ordinary phase-correlation multiplexing method, it is possible to perform shifting by a sufficient amount.

摘要翻译： 全息记录装置可以容易地在全息图记录介质上执行多重记录/再现。 全息记录装置包括光学系统和距离控制机构。 光学系统集中在全息图记录介质的基本相同的位置处，在光调制元件处调制的信号光和其相位已经在相位调制元件被调制的参考光。 距离控制机构控制相位调制元件与全息图记录媒体之间的距离。 通过控制相位调制元件和全息图记录介质之间的距离，可以对全息图记录介质进行多重记录。 在通常的相位相关复用方法中，作为在全息图记录介质的表面方向移动聚光位置的结果进行复用记录，而在本发明中，可以执行多路记录 而不会在全息图记录介质的表面的方向上移动聚焦位置。 可以通过沿全息图记录介质的表面方向移动聚光位置来进一步提高记录容量。 这里，与普通相位相关复用方式相比，能够进行足够的移位。

公开(公告)号：US07236442B2

公开(公告)日：2007-06-26

申请号：US10702446

申请日：2003-11-07

申请人： Mikio Sugiki ,  Kazuo Takahashi ,  Shigeo Kobayashi ,  Tomiji Tanaka ,  Koji Ishioka ,  Kenjiro Watanabe

发明人： Mikio Sugiki ,  Kazuo Takahashi ,  Shigeo Kobayashi ,  Tomiji Tanaka ,  Koji Ishioka ,  Kenjiro Watanabe

IPC分类号： G11B7/00

CPC分类号： G11B7/1356 ,  G03H1/16 ,  G11B7/0065 ,  G11B7/128 ,  G11B7/1365

摘要： A holographic recording/reproducing apparatus includes a splitter unit for splitting a laser beam into a first laser beam for generating a signal beam and a second laser beam which serves as a reference beam, a spatial light modulator for spatially modulating the first laser beam in accordance with information to be recorded, the modulated first laser beam serving as the signal beam, and a first lens system for focusing the signal beam and the reference beam onto a holographic recording medium. In a recording process, the signal beam and the reference beam are guided through one and the other half-regions separated along the optical axis of the first lens system. In a reproduction process, only the reference beam is guided through one of the half-regions and a signal reproduction beam from the holographic recording medium is guided through a second lens system in the other half-region.

摘要翻译： 一种全息记录/再现装置，包括一个分离器单元，用于将激光束分成用于产生信号光束的第一激光束和用作参考光束的第二激光束;空间光调制器，用于按照第一激光束空间调制 具有要记录的信息，用作信号光束的调制的第一激光束，以及用于将信号光束和参考光束聚焦到全息记录介质上的第一透镜系统。 在记录过程中，信号光束和参考光束被引导通过沿着第一透镜系统的光轴分离的一个和另一个半区域。 在再现处理中，只有参考光束被引导通过半个区域之一，并且来自全息记录介质的信号再现光束被引导通过另一个半区域中的第二透镜系统。

公开(公告)号：US20060274811A1

公开(公告)日：2006-12-07

申请号：US11383854

申请日：2006-05-17

申请人： Tomiji Tanaka ,  Hiroyuki Yamagata ,  Masaki Chiba

发明人： Tomiji Tanaka ,  Hiroyuki Yamagata ,  Masaki Chiba

IPC分类号： H01S3/10 ,  H01S3/08

CPC分类号： H01S5/141 ,  H01S5/02248 ,  H01S5/02288 ,  H01S5/0687 ,  H01S5/32341

摘要： A laser apparatus is disclosed. The laser apparatus has a diffraction grating that receives laser light from a semiconductor laser, emits first order diffracted light having a predetermined wavelength to the semiconductor laser, and reflects zero-th order light, a reflection section that reflects the zero-th order light reflected by the diffraction grating, a hold section that holds the diffraction grating and the reflection section while an open angle of the diffraction grating and the reflection section is kept constant, the hold section being rotatable with a fulcrum of an intersection of an extended line of a front surface of the diffraction grating and an extended line of a front surface of the reflection section, and a linear drive section that rotates the hold section with a linear motion of a piezoelectric device that expands and shrinks by the piezoelectric effect.

摘要翻译： 公开了一种激光装置。 激光装置具有从半导体激光器接收激光的衍射光栅，向半导体激光器照射具有预定波长的一级衍射光，并反射零级光，反射零反射光的反射部 通过所述衍射光栅，所述保持部保持所述衍射光栅和所述反射部，同时所述衍射光栅和所述反射部的开放角度保持恒定，所述保持部能够与所述衍射光栅和所述反射部的延长线的交叉点的支点旋转， 衍射光栅的前表面和反射部分的前表面的延伸线，以及线性驱动部分，其通过由压电效应而膨胀和收缩的压电器件的线性运动来旋转保持部分。

公开(公告)号：US20060072421A1

公开(公告)日：2006-04-06

申请号：US10541608

申请日：2003-12-26

申请人： Tomiji Tanaka ,  Mikio Sugiki ,  Shigeo Kobayashi ,  Koji Ishioka ,  Kazuo Takahashi ,  Toshiyuki Nakagawa

发明人： Tomiji Tanaka ,  Mikio Sugiki ,  Shigeo Kobayashi ,  Koji Ishioka ,  Kazuo Takahashi ,  Toshiyuki Nakagawa

IPC分类号： G11B7/00

CPC分类号： G11B7/0065 ,  G03H2225/11 ,  G03H2225/24

摘要： In the hologram recording and hologram-record reproduction using a one-dimensional optical modulator, the one-dimensional optical modulator where a plurality of light-modulating pixels are arranged modulates a laser beam to record a digital-data signal on a hologram recording medium, and part of the light-modulating pixels record sync signals in two or more positions on the hologram recording medium with retaining a predetermined interval, thereby improving hindrance to reproduction or readout of information recorded on the hologram recording medium, a decrease in S/N, and so on due to deformation or the like of the hologram recording medium.

摘要翻译： 在使用一维光调制器的全息图记录和全息记录再现中，其中布置多个光调制像素的一维光调制器调制激光束以在全息图记录介质上记录数字数据信号， 并且光调制像素的一部分以保持预定间隔在全息图记录介质上的两个或更多个位置记录同步信号，从而改善对记录在全息图记录介质上的信息的再现或读出的阻碍，S / N的减小， 等等，由于全息图记录介质的变形等。