专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

US20070258118A1 HOLOGRAM RECORDING AND RECONSTRUCTION APPARATUS 失效
标题翻译： HOLOGRAM记录和重建装置
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。

2. 发明授权

US08134765B2 Hologram recording and reconstruction apparatus 失效
标题翻译：全息记录和重建装置
公开(公告)号：US08134765B2
公开(公告)日：2012-03-13
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： G03H1/22
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. The apparatus includes an objective lens, a spatial light modulator on which a reference light beam pattern for generating a 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 a 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在全息记录介质的记录层中记录和重构全息图。该装置包括物镜，空间光调制器，其上显示用于产生参考光束的参考光束图案，用于检测全息记录介质的温度的温度传感器，以及用于控制空间光调制器的控制单元以减小参考光束图案，使得参考光束通过物镜的更多内部部分或放大参考光束图案，使得参考光束根据物镜透过物镜的更外部部分温度。

3. 发明授权

US07502151B2 Holographic recording and reconstructing apparatus and method 失效
标题翻译：全息记录和重建装置及方法
公开(公告)号：US07502151B2
公开(公告)日：2009-03-10
申请号：US11388473
申请日：2006-03-24
申请人： Mitsuru Toishi , Tomiji Tanaka , Mikio Sugiki
发明人： Mitsuru Toishi , Tomiji Tanaka , Mikio Sugiki
IPC分类号： G03H1/02
CPC分类号： G11B7/0065 , G11B7/00781 , G11B7/126
摘要： A holographic recording and reconstructing apparatus includes a light source having a variable oscillation wavelength; a temperature sensing unit operable to sense temperature; and a control unit operable to record information about a temperature sensed by the temperature sensing unit on a holographic recording medium during recording, to obtain the information about the temperature from the holographic recording medium and obtain a temperature sensed by the temperature sensing unit during reconstruction, to determine the amount of wavelength shift to counteract the effects of a change in the dimension of the holographic recording medium between recording and reconstruction based on the difference between the temperatures, and to shift the oscillation wavelength of the light source by the determined amount.
摘要翻译：全息记录和重建装置包括具有可变振荡波长的光源; 温度检测单元，其可操作以感测温度; 以及控制单元，其可操作以在记录期间在全息记录介质上记录关于由温度感测单元感测的温度的信息，以获得关于来自全息记录介质的温度的信息，并获得在重建期间由温度感测单元感测的温度，确定波长偏移的量，以抵消在记录和重构之间的全息记录介质的尺寸变化的影响，基于温度之间的差异，并且将光源的振荡波长移动所确定的量。

4. 发明申请

US20070146838A1 Hologram recording device, hologram reproductive device, hologram recording method, hologram reproduction method, and hologram recording medium 审中-公开
标题翻译：全息记录装置，全息图再现装置，全息记录方法，全息图再现方法和全息记录介质
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。

5. 发明申请

US20060232841A1 Holographic recording and reconstructing apparatus and method 失效
公开(公告)号：US20060232841A1
公开(公告)日：2006-10-19
申请号：US11388473
申请日：2006-03-24
申请人： Mitsuru Toishi , Tomiji Tanaka , Mikio Sugiki
发明人： Mitsuru Toishi , Tomiji Tanaka , Mikio Sugiki
IPC分类号： G03H1/28
CPC分类号： G11B7/0065 , G11B7/00781 , G11B7/126
摘要： A holographic recording and reconstructing apparatus includes a light source having a variable oscillation wavelength; a temperature sensing unit operable to sense temperature; and a control unit operable to record information about a temperature sensed by the temperature sensing unit on a holographic recording medium during recording, to obtain the information about the temperature from the holographic recording medium and obtain a temperature sensed by the temperature sensing unit during reconstruction, to determine the amount of wavelength shift to counteract the effects of a change in the dimension of the holographic recording medium between recording and reconstruction based on the difference between the temperatures, and to shift the oscillation wavelength of the light source by the determined amount.

6. 发明授权

US07236442B2 Holographic recording/reproducing apparatus and reproducing apparatus for holographically recorded information 失效
标题翻译：用于全息记录信息的全息记录/再现装置和再现装置
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。

7. 发明授权

US07729400B2 External cavity type semiconductor laser 失效
标题翻译：外腔型半导体激光器
公开(公告)号：US07729400B2
公开(公告)日：2010-06-01
申请号：US10579903
申请日：2004-11-30
申请人： Tomiji Tanaka , Kazuo Takahashi , Motonobu Takeya
发明人： Tomiji Tanaka , Kazuo Takahashi , Motonobu Takeya
IPC分类号： H01S5/18 , H01S5/16
CPC分类号： H01S5/141 , H01S5/02212 , H01S5/02248 , H01S5/02296 , H01S5/02415 , H01S5/02438 , H01S5/0655 , H01S5/2219 , H01S5/32341
摘要： An external cavity type semiconductor laser that has a larger output and a more excellent single mode characteristic than a conventional external cavity type semiconductor laser is provided. The external cavity type semiconductor laser has a laser diode 11, a window glass 16, a grating, and a lens. The external cavity type semiconductor laser has several modifications over the conventional one. A first modification is that the window glass 16 is inclined to a beam emission surface 19 of a laser diode 11 for a predetermined angle. A second modification is that arrangements of the laser diode 11 and so forth are adjusted so that a S wave reaches the grating. A third modification is that when an output power of the laser diode 11 is 45 mW or less, a kink is suppressed. The other modifications are that a reflectance of a beam emission surface of the laser diode 11, a numerical aperture of the lens, an external cavity length, and a reflectance of a first order beam of the grating are optimized to their proper values.
摘要翻译：提供具有比常规的外腔型半导体激光器更大的输出和更优异的单模特性的外腔型半导体激光器。外腔型半导体激光器具有激光二极管11，窗玻璃16，光栅和透镜。外腔型半导体激光器与常规半导体激光器相比有若干种修改。第一修改是窗玻璃16以预定角度倾斜于激光二极管11的光束发射表面19。第二修改是调整激光二极管11等的配置，使得S波到达光栅。第三变形例是当激光二极管11的输出功率为45mW以下时，抑制了扭结。其他修改是将激光二极管11的光束发射表面的反射率，透镜的数值孔径，外部空腔长度和光栅的一阶光束的反射率优化为其适当的值。

8. 发明申请

US20090316239A1 RECORDING APPARATUS AND RECORDING METHOD 审中-公开
标题翻译：记录装置和记录方法
公开(公告)号：US20090316239A1
公开(公告)日：2009-12-24
申请号：US12475098
申请日：2009-05-29
申请人： Hitoshi OKADA , Masaaki Hara , Satoru Seko , Tomiji Tanaka , Yoshiki Okamoto
发明人： Hitoshi OKADA , Masaaki Hara , Satoru Seko , Tomiji Tanaka , Yoshiki Okamoto
IPC分类号： G03H1/08
CPC分类号： G11B7/00781 , G11B7/0065
摘要： A recording apparatus includes a drive unit that rotationally drives a holographic recording medium including a recording layer and a track forming layer that includes guide tracks formed at constant intervals in a radial direction, where a signal beam and a reference beam are emitted to the recording layer so that a hologram is recorded in accordance with the signal beam, a signal beam generating unit, a reference beam generating unit, a recording unit that emits the signal beam and reference beam into the medium and records the hologram, a rotation control unit that controls the drive unit so that the medium is rotationally driven at a constant rotation speed, and a recording control unit that selects some of the guide tracks so that radial-direction recording intervals of the holograms are statistically decreased towards the outer periphery and controls the recording unit to record the holograms along the selected tracks.
摘要翻译：记录装置包括：驱动单元，其旋转地驱动包括记录层的全息记录介质和轨道形成层，该轨道形成层包括沿径向恒定间隔形成的导轨，其中信号光束和参考光束被发射到记录层使得根据信号束记录全息图，信号光束产生单元，参考光束产生单元，将信号光束和参考光束发射到介质中并记录全息图的记录单元，控制旋转控制单元所述驱动单元使得所述介质以恒定的旋转速度被旋转地驱动;以及记录控制单元，其选择一些所述导轨，使得所述全息图的径向记录间隔向外周界统计地减小，并且控制所述记录单元沿所选轨道记录全息图。

9. 发明申请

US20080198432A1 HOLOGRAM REPRODUCING APPARATUS, HOLOGRAM REPRODUCING METHOD, AND PHASE MODULATING ELEMENT 失效
标题翻译： HOLOGRAM复制设备，HOLOGRAM复制方法和相位调制元件
公开(公告)号：US20080198432A1
公开(公告)日：2008-08-21
申请号：US12032536
申请日：2008-02-15
申请人： Tomiji Tanaka , Masaaki Hara , Kazutatsu Tokuyama , Satoru Seko , Shinji Yamada , Hitoshi Okada
发明人： Tomiji Tanaka , Masaaki Hara , Kazutatsu Tokuyama , Satoru Seko , Shinji Yamada , Hitoshi Okada
IPC分类号： G03H1/22 , G02F1/137
CPC分类号： G11B7/1362 , G03H1/22 , G03H1/265 , G03H2001/0441 , G03H2210/562 , G11B7/0065 , G11B7/1369
摘要： A hologram reproducing apparatus includes a first reference light path leading laser light from a laser light source so that a hologram recording medium is irradiated with first reference light; a diffracted light path leading diffracted light, generated from the hologram recording medium by irradiation with the first reference light, to a light receiving element having a plurality of pixels; and a second reference light path leading second reference light, having the same polarization direction as that of the diffracted light, from the laser light source to the light receiving element. The second reference light path is provided with a phase modulating element so that the phase difference between the diffracted light and the second reference light in a light receiving surface of the light receiving element is adjusted within a predetermined range.
摘要翻译：全息图再现装置包括：第一参考光路，其引导来自激光光源的激光，使得全息图记录介质用第一参考光照射; 通过照射第一参考光从全息图记录介质产生的衍射光的衍射光路到具有多个像素的光接收元件; 以及第二参考光路，其将具有与衍射光的偏振方向相同的偏振方向的第二参考光从激光光源引导到光接收元件。第二参考光路设置有相位调制元件，使得光接收元件的光接收表面中的衍射光和第二参考光之间的相位差被调节在预定范围内。

10. 发明授权

US4878132A Thermomagnetic recording method applying power modulated laser on a magnetically coupled multi-layer structure of perpendicular anisotropy magnetic film 失效
标题翻译：将功率调制激光器应用于垂直各向异性磁性膜的磁耦合多层结构的热磁记录方法
公开(公告)号：US4878132A
公开(公告)日：1989-10-31
申请号：US184783
申请日：1988-04-22
申请人： Katsuhisa Aratani , Ariyoshi Nakaoki , Tomiji Tanaka
发明人： Katsuhisa Aratani , Ariyoshi Nakaoki , Tomiji Tanaka
IPC分类号： G11B11/105
CPC分类号： G11B11/10519 , G11B11/10506 , G11B11/10591 , Y10S428/928 , Y10T428/12632 , Y10T428/12951
摘要： A thermomagnetic recording method is disclosed using a thermomagnetic recording medium where first, second and third magnetic thin films each formed of rare-earth and transition metals are sequentially superposed to form layers in a magnetically coupled manner. The recording is carried out by heating the thermomagnetic recording medium under a predetermined magnetic field perpendicular to the film plane thereof while selectively modulating, in accordance with data to be recorded, a first heating state at a first temperature T1 substantially above the Curie point Tc1 of the first magnetic thin film and adequate to hold the sublattice magnetization of the transition metal of the second magnetic thin film in a predetermined direction, and a second heating state at a second temperature T2 substantially above the Curie point Tc1 and adequate to invert the sublattice magnetization of the transition metal of the second magnetic thin film to the reverse of the predetermined direction. In a cooling step subsequent to the first and second heating states, maintaining the sublattice magnetization of the third magnetic thin film in a predetermined direction while orienting the sublattice magnetization of said second magnetic thin film to be directionally coincident with that of the third magnetic thin film at a temperature below the first temperature T1 without directionally inverting the sublattice magnetization of the first magnetic thin film.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式