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1. 发明申请

US20070268539A1 APPARATUS AND METHOD FOR HOLOGRAPHIC RECORDING AND REPRODUCING 审中-公开
标题翻译：用于全息记录和再现的装置和方法
公开(公告)号：US20070268539A1
公开(公告)日：2007-11-22
申请号：US11745931
申请日：2007-05-08
申请人： Mitsuru Toishi , Masaaki Hara , Kenji Tanaka , Koji Ishioka , Atsushi Fukumoto
发明人： Mitsuru Toishi , Masaaki Hara , Kenji Tanaka , Koji Ishioka , Atsushi Fukumoto
IPC分类号： G03H1/12
CPC分类号： G03H1/28 , G03H2001/2675 , G03H2225/60 , G11B7/00772 , G11B7/083
摘要： A holographic recording and reproducing apparatus is provided. The holographic recording and reproducing apparatus includes a signal-beam spatial light modulating unit that displays a signal beam pattern for a signal beam, a reference-beam spatial light modulating unit that displays a reference beam pattern for a reference beam, and a controller that controls the mode of the signal beam pattern and that of the reference beam pattern. The controller controls the modes of at least two signal beam patterns and the modes of at least two reference beam patterns. A first reference beam is made to interfere with a first signal beam based on first recording data to record the data as a first hologram in a predetermined area of the holographic recording medium. A second reference beam is made to interfere with a second signal beam based on second recording data to record the data as a second hologram such that the second hologram is superimposed on the first hologram.
摘要翻译：提供全息记录和再现装置。全息记录和再现装置包括：信号束空间光调制单元，其显示用于信号光束的信号光束图案;参考光束空间光调制单元，其显示用于参考光束的参考光束图案;以及控制器，信号光束图案的模式和参考光束图案的模式。控制器控制至少两个信号光束图案的模式和至少两个参考光束图案的模式。基于第一记录数据使第一参考光束与第一信号光束相干扰，以在全息记录介质的预定区域中将数据记录为第一全息图。基于第二记录数据使第二参考光束与第二信号光束相干以将数据记录为第二全息图，使得第二全息图叠加在第一全息图上。

2. 发明授权

US07965607B2 Hologram recording/reproducing device and recording/reproducing optical apparatus 失效
标题翻译：全息记录/再现装置和记录/再现光学装置
公开(公告)号：US07965607B2
公开(公告)日：2011-06-21
申请号：US11520481
申请日：2006-09-13
申请人： Atsushi Fukumoto , Mikio Sugiki , Kenji Tanaka , Naoto Kojima , Mitsuru Toishi
发明人： Atsushi Fukumoto , Mikio Sugiki , Kenji Tanaka , Naoto Kojima , Mitsuru Toishi
IPC分类号： G11B7/0065 , G11B7/00
CPC分类号： G11B7/1374 , G03H1/0465 , G03H1/12 , G03H2223/13 , G03H2223/17 , G03H2225/55 , G11B7/0065 , G11B7/00772
摘要： A hologram recording/reproducing device includes a recording/reproducing optical unit performing recording and reproducing operations on a hologram recording/reproducing medium. The optical unit includes a laser light source emitting laser light; a spatial-light modulator generating signal light and reference light from the laser light, the signal light and reference light having a common light path; a phase mask disposed near the modulator or in a conjugate plane of the modulator and transmitting at least the reference light; and an objective lens including a first lens portion and a second lens portion. The first lens portion is disposed at an inner peripheral portion of the objective lens and serves as a Fourier transformation lens focusing the signal light to a predetermined point. The second lens portion is disposed at an outer peripheral portion of the objective lens and has focuses continuously or discretely disposed in an optical-axis direction of the objective lens and at portions in the medium near the predetermined point.
摘要翻译：全息记录/再现装置包括在全息记录/再现介质上执行记录和再现操作的记录/再现光学单元。光学单元包括发射激光的激光光源; 产生来自激光的信号光和参考光的空间光调制器，信号光和参考光具有公共光路; 设置在所述调制器附近或所述调制器的共轭平面中并且至少透射所述参考光的相位掩模; 以及包括第一透镜部分和第二透镜部分的物镜。第一透镜部分设置在物镜的内周部分，并且用作将信号光聚焦到预定点的傅里叶变换透镜。第二透镜部分设置在物镜的外周部分处，并且在物镜的光轴方向上以及介质中靠近预定点的部分连续地或离散地设置。

3. 发明申请

US20070153663A1 Hologram recording/reproducing device and recording/reproducing optical apparatus 失效
标题翻译：全息记录/再现装置和记录/再现光学装置
公开(公告)号：US20070153663A1
公开(公告)日：2007-07-05
申请号：US11520481
申请日：2006-09-13
申请人： Atsushi Fukumoto , Mikio Sugiki , Kenji Tanaka , Naoto Kojima , Mitsuru Toishi
发明人： Atsushi Fukumoto , Mikio Sugiki , Kenji Tanaka , Naoto Kojima , Mitsuru Toishi
IPC分类号： G11B7/00
CPC分类号： G11B7/1374 , G03H1/0465 , G03H1/12 , G03H2223/13 , G03H2223/17 , G03H2225/55 , G11B7/0065 , G11B7/00772
摘要： A hologram recording/reproducing device includes a recording/reproducing optical unit performing recording and reproducing operations on a hologram recording/reproducing medium. The optical unit includes a laser light source emitting laser light; a spatial-light modulator generating signal light and reference light from the laser light, the signal light and reference light having a common light path; a phase mask disposed near the modulator or in a conjugate plane of the modulator and transmitting at least the reference light; and an objective lens including a first lens portion and a second lens portion. The first lens portion is disposed at an inner peripheral portion of the objective lens and serves as a Fourier transformation lens focusing the signal light to a predetermined point. The second lens portion is disposed at an outer peripheral portion of the objective lens and has focuses continuously or discretely disposed in an optical-axis direction of the objective lens and at portions in the medium near the predetermined point.
摘要翻译：全息记录/再现装置包括在全息记录/再现介质上执行记录和再现操作的记录/再现光学单元。光学单元包括发射激光的激光光源; 产生来自激光的信号光和参考光的空间光调制器，信号光和参考光具有公共光路; 设置在所述调制器附近或所述调制器的共轭平面中并且至少透射所述参考光的相位掩模; 以及包括第一透镜部分和第二透镜部分的物镜。第一透镜部分设置在物镜的内周部分，并且用作将信号光聚焦到预定点的傅里叶变换透镜。第二透镜部分设置在物镜的外周部分处，并且在物镜的光轴方向上以及介质中靠近预定点的部分连续地或离散地设置。

4. 发明申请

US20070268538A1 HOLOGRAPHIC RECONSTRUCTION APPARATUS, HOLOGRAPHIC RECORDING/RECONSTRUCTION APPARATUS, AND HOLOGRAPHIC RECONSTRUCTION METHOD 审中-公开
标题翻译：全息重建装置，全息记录/重建装置和全息重建方法
公开(公告)号：US20070268538A1
公开(公告)日：2007-11-22
申请号：US11749571
申请日：2007-05-16
申请人： Koji Ishioka , Mikio Sugiki , Atsushi Fukumoto , Masaaki Hara
发明人： Koji Ishioka , Mikio Sugiki , Atsushi Fukumoto , Masaaki Hara
IPC分类号： G03H1/10
CPC分类号： G03H1/22 , G03H1/2286 , G11B7/005 , G11B7/0065 , G11B7/128
摘要： A holographic reconstruction apparatus is provided. The holographic reconstruction apparatus reconstructs recording data recorded on a holographic recording medium from diffracted light generated by emitting reference light from a laser light source to the holographic recording medium. The apparatus includes a spatial light modulator applying spatial modulation on a light beam to form a predetermined reference light pattern for generating the reference light; an array optical detector detecting the luminance of a reconstructed image generated by the diffracted light and generating reconstruction data based on the luminance; and a controller controlling the spatial light modulator to form, as the predetermined reference light pattern, a first reference light pattern and a second reference light pattern, which is a reversal of the first reference light pattern, and reconstructing the recording data on the basis of after-calculation reconstruction data according to a difference between first and second reconstruction data based on the first and second reference light patterns.
摘要翻译：提供全息重建装置。全息重建装置从由激光光源发出的参考光产生的衍射光全息记录介质上，记录在全息记录介质上记录的数据。该装置包括空间光调制器，其对光束施加空间调制以形成用于产生参考光的预定参考光图案; 阵列光学检测器，检测由衍射光产生的重建图像的亮度，并基于亮度生成重建数据; 以及控制所述空间光调制器的控制器，作为所述预定参考光图案，形成作为所述第一参考光图案的反转的第一参考光图案和第二参考光图案，并且基于根据第一和第二参考光图案，根据第一和第二重建数据之间的差异来计算后重建数据。

5. 发明授权

US07606133B2 Hologram recording/reproducing device and hologram reproducing device 失效
标题翻译：全息记录/再现装置和全息图再现装置
公开(公告)号：US07606133B2
公开(公告)日：2009-10-20
申请号：US11527836
申请日：2006-09-27
申请人： Atsushi Fukumoto , Kenji Tanaka , Koji Ishioka
发明人： Atsushi Fukumoto , Kenji Tanaka , Koji Ishioka
IPC分类号： G11B7/00 , G03H1/00
CPC分类号： G11B7/0065
摘要： A hologram recording/reproducing device records information onto a medium by a light beam emitted from a laser light source and passing through a forward path, the forward path having optical components in an area extending from the laser light source to the medium, and reproduces the recorded information by the light beam passing through a backward path, the backward path having optical components in an area extending from the medium to an array light detector. The device includes a spatial-light modulator and a first objective lens disposed in the forward path, and a second objective lens and a polarization-dependent diffraction element disposed in the backward path. The modulator generates signal light and reference light from the light beam emitted from the laser light source, the signal light and the reference light being spatially divided from each other and having a common light path. The first objective lens focuses the signal light and the reference light from the modulator onto the medium. The second objective lens forms a hologram image on the light detector based on reproduction light from the medium. The diffraction element is disposed in a hologram real-image plane and diffracts the reference light incident upon the light detector from the second objective lens.
摘要翻译：全息记录/再现装置通过从激光光源发射并穿过前进路径的光束将信息记录到介质上，前向路径在从激光光源延伸到介质的区域中具有光学部件，并且再现由通过反向路径的光束记录的信息，后向路径在从介质延伸到阵列光检测器的区域中具有光学部件。该装置包括设置在前向路径中的空间光调制器和第一物镜，以及设置在后向路径中的第二物镜和偏振相关衍射元件。调制器产生来自激光光源发射的光束的信号光和参考光，信号光和参考光在空间上彼此分开并具有公共光路。第一个物镜将来自调制器的信号光和参考光聚焦到介质上。第二物镜基于来自介质的再现光在光检测器上形成全息图。衍射元件设置在全息图实像平面中，并从第二物镜衍射入射到光检测器上的参考光。

6. 发明申请

US20070104069A1 Hologram recording/reproducing device and hologram reproducing device 失效
标题翻译：全息记录/再现装置和全息图再现装置
公开(公告)号：US20070104069A1
公开(公告)日：2007-05-10
申请号：US11527836
申请日：2006-09-27
申请人： Atsushi Fukumoto , Kenji Tanaka , Koji Ishioka
发明人： Atsushi Fukumoto , Kenji Tanaka , Koji Ishioka
IPC分类号： G11B7/00
CPC分类号： G11B7/0065
摘要： A hologram recording/reproducing device records information onto a medium by a light beam emitted from a laser light source and passing through a forward path, the forward path having optical components in an area extending from the laser light source to the medium, and reproduces the recorded information by the light beam passing through a backward path, the backward path having optical components in an area extending from the medium to an array light detector. The device includes a spatial-light modulator and a first objective lens disposed in the forward path, and a second objective lens and a polarization-dependent diffraction element disposed in the backward path. The modulator generates signal light and reference light from the light beam emitted from the laser light source, the signal light and the reference light being spatially divided from each other and having a common light path. The first objective lens focuses the signal light and the reference light from the modulator onto the medium. The second objective lens forms a hologram image on the light detector based on reproduction light from the medium. The diffraction element is disposed in a hologram real-image plane and diffracts the reference light incident upon the light detector from the second objective lens.
摘要翻译：全息记录/再现装置通过从激光光源发射的光束并且通过正向路径将信息记录在介质上，前向路径在从激光光源延伸到介质的区域中具有光学部件，并且再现由通过反向路径的光束记录的信息，后向路径在从介质延伸到阵列光检测器的区域中具有光学部件。该装置包括设置在前向路径中的空间光调制器和第一物镜，以及设置在后向路径中的第二物镜和偏振相关衍射元件。调制器产生来自激光光源发射的光束的信号光和参考光，信号光和参考光在空间上彼此分开并具有公共光路。第一个物镜将来自调制器的信号光和参考光聚焦到介质上。第二物镜基于来自介质的再现光在光检测器上形成全息图。衍射元件设置在全息图实像平面中，并从第二物镜衍射入射到光检测器上的参考光。

7. 发明申请

US20100225985A1 REPRODUCING DEVICE AND REPRODUCING METHOD 审中-公开
标题翻译：重现设备和再现方法
公开(公告)号：US20100225985A1
公开(公告)日：2010-09-09
申请号：US12697639
申请日：2010-02-01
申请人： Atsushi Fukumoto , Kenji Tanaka , Masaaki Hara , Akio Yamakawa
发明人： Atsushi Fukumoto , Kenji Tanaka , Masaaki Hara , Akio Yamakawa
IPC分类号： G03H1/22
CPC分类号： G11B7/083 , G03H1/16 , G03H2225/32 , G03H2225/36 , G03H2225/60 , G11B7/0065 , G11B20/10009 , G11B2220/2504
摘要： A reproducing device including a light source that emits light for reproducing recorded information to a hologram recording medium subjected to recording of information by interference fringes of signal light and reference light, a light irradiating unit that generates the reference light for obtaining a reproduced image according to the recorded information and DC light having uniform intensity and phase, and irradiates the hologram recording medium with both the reference light and the DC light and with only the DC light, a light receiving unit that performs light-reception for the DC light and the reproduced image, and performs light-reception for the DC light, and a difference calculating unit that calculates a difference between an image signal obtained based on a light-reception result of the reproduced image and the DC light, and an image signal obtained based on a light-reception result of the DC light.
摘要翻译：一种再生装置，其特征在于，包括：光源，其向通过信号光和基准光的干涉条纹记录信息的全息图记录媒体发出记录信息的光;照射单元，生成用于获得根据所记录的信息和DC光具有均匀的强度和相位，并且仅用DC光照射具有参考光和DC光的全息图记录介质，对DC光进行光接收的光接收单元图像，并且对DC光进行光接收;以及差分计算单元，其计算基于再现图像的光接收结果获得的图像信号与DC光之间的差异，以及基于直流光的光接收结果。

8. 发明申请

US20090290471A1 RECORDING AND REPRODUCING DEVICE, RECORDING AND REPRODUCING METHOD, RECORDING DEVICE, RECORDING METHOD, REPRODUCING DEVICE, AND REPRODUCING METHOD 审中-公开
标题翻译：记录和再现装置，记录和再现方法，记录装置，记录方法，再现装置和再现方法
公开(公告)号：US20090290471A1
公开(公告)日：2009-11-26
申请号：US12429883
申请日：2009-04-24
申请人： Kenji TANAKA , Atsushi Fukumoto , Masaaki Hara , Kazutatsu Tokuyama
发明人： Kenji TANAKA , Atsushi Fukumoto , Masaaki Hara , Kazutatsu Tokuyama
IPC分类号： G11B7/00
CPC分类号： G11B7/1369 , G11B7/0065 , G11B7/128 , G11B7/1381 , G11B7/1392
摘要： A recording and reproducing device performs recording and reproduction on a hologram recording medium on which data is recorded by the use of interference fringes formed by signal light and reference light. The device includes: a light generation device including a spatial light modulator which performs spatial light modulation on incident light, and generating the signal and reference lights in the recording and the reference light in the reproduction; an image sensor for receiving the incident light and obtaining a light reception signal; an optical system for guiding the signal and reference lights to the hologram recording medium and reproduction light to the image sensor; and a band limiting device inserted on a Fourier plane in an optical path of the optical system, and having a transmittance set to be lower in a central area thereof than in a peripheral area thereof, to perform band limitation on the incident light.
摘要翻译：记录和再现装置在通过使用由信号光和参考光形成的干涉条纹记录数据的全息图记录介质上执行记录和再现。该装置包括：发光装置，其包括对入射光进行空间光调制的空间光调制器，并且在再现中产生记录中的信号和参考光; 用于接收入射光并获得光接收信号的图像传感器; 用于将信号和参考光引导到全息图记录介质并将光再现到图像传感器的光学系统; 以及插入光学系统的光路中的傅立叶平面上的带限制装置，并且在其中心区域具有比在其周边区域更低的透射率，以对入射光进行带限制。

9. 发明授权

US07684097B2 Recording apparatus and phase modulation device 失效
标题翻译：记录装置和相位调制装置
公开(公告)号：US07684097B2
公开(公告)日：2010-03-23
申请号：US11862373
申请日：2007-09-27
申请人： Atsushi Fukumoto , Mikio Sugiki , Kenji Tanaka , Masaaki Hara , Kazuyuki Hirooka
发明人： Atsushi Fukumoto , Mikio Sugiki , Kenji Tanaka , Masaaki Hara , Kazuyuki Hirooka
IPC分类号： G03H1/12 , G03H1/04
CPC分类号： G11B7/0065 , G03H2223/13 , G03H2225/31 , G11B7/1367
摘要： A recording apparatus performing at least recording with respect to a hologram recording medium is disclosed. The recording medium includes: a light emitting means for emitting light to be radiated with respect to the hologram recording medium set at a prescribed position; a spatial light modulation means configured to be able to generate reference light and signal light to be radiated to the hologram recording medium by performing light intensity modulation to incident light in the unit of pixels; a phase modulation means for performing phase modulation to radiated light from the spatial light modulation means; and an optical system configured to guide light emitted from the light emitting means with respect to the hologram recording medium through the spatial modulation means and the phase modulation means.
摘要翻译：公开了至少对全息图记录介质进行记录的记录装置。记录介质包括：发光装置，用于发射相对于设置在规定位置的全息图记录介质辐射的光; 空间光调制装置，其被配置为能够通过对以像素为单位的入射光进行光强度调制来产生将被照射到全息图记录介质的参考光和信号光; 相位调制装置，用于对来自空间光调制装置的辐射光进行相位调制; 以及光学系统，被配置为通过空间调制装置和相位调制装置引导从发光装置相对于全息图记录介质发射的光。

10. 发明申请

US20090219798A1 REPRODUCTION METHOD AND HOLOGRAM RECORDING MEDIUM 审中-公开
标题翻译：复制方法和HOLOGRAM记录介质
公开(公告)号：US20090219798A1
公开(公告)日：2009-09-03
申请号：US12357865
申请日：2009-01-22
申请人： Kenji TANAKA , Atsushi Fukumoto , Masaaki Hara
发明人： Kenji TANAKA , Atsushi Fukumoto , Masaaki Hara
IPC分类号： G11B7/00 , G03H1/04
CPC分类号： G03H1/02 , G03H2001/0224 , G03H2223/13 , G03H2225/31 , G03H2225/33 , G03H2225/55 , G11B7/0065 , G11B7/1275 , G11B7/128 , G11B7/24044
摘要： Disclosed is a reproduction method for a hologram recording medium on which information is recorded with interference fringes of signal light and reference light, including: generating, based on light from a first light source, the reference light and coherent light caused to have uniform amplitude and phase, and irradiating the hologram recording medium with the reference light and the coherent light, the hologram recording medium including a recording layer on which the information is recorded with the interference fringes of the signal light and the reference light, a first reflection film formed on a lower surface side of the recording layer, and a gap layer formed between the recording layer and the first reflection film; and receiving the coherent light and a reproduction image that corresponds to recording information and is obtained as reflection light from the hologram recording medium through light irradiation in the light irradiation step, and reproducing the information based on a result of the light received.
摘要翻译：公开了一种全息图记录介质的再现方法，其上以信号光和参考光的干涉条纹记录信息，包括：基于来自第一光源的光，产生具有均匀振幅的参考光和相干光，以及相位，并且用参考光和相干光照射全息图记录介质，全息图记录介质包括记录有信号光和参考光的干涉条纹的信息的记录层，形成在第一反射膜上的第一反射膜记录层的下表面侧和形成在记录层和第一反射膜之间的间隙层; 并且在光照射步骤中通过光照射接收相干光和对应于记录信息并作为来自全息图记录介质的反射光获得的再现图像，并且基于所接收的光的结果再现信息。

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