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1. 发明申请

US20100265808A1 HOLOGRAM DEVICE, TILT DETECTION METHOD, AND TILT CORRECTION METHOD 失效
标题翻译： HOLOGRAM装置，倾斜检测方法和倾斜校正方法
公开(公告)号：US20100265808A1
公开(公告)日：2010-10-21
申请号：US12731306
申请日：2010-03-25
申请人： Akio YAMAKAWA , Yoshiki Okamoto , Kenji Tanaka , Kazutatsu Tokuyama , Koji Takasaki
发明人： Akio YAMAKAWA , Yoshiki Okamoto , Kenji Tanaka , Kazutatsu Tokuyama , Koji Takasaki
IPC分类号： G11B7/00
CPC分类号： G11B7/0956 , G11B7/0065 , G11B7/083
摘要： A hologram device includes: a light source for applying light to a hologram recording medium having a recording layer in which information recording is performed by interference fringes between signal light and reference light; a spatial modulation unit that generates the signal light and/or the reference light and generates a marker light in a predetermined position within an incident surface of the light from the light source by performing spatial light modulation on the light from the light source; a light applying unit that applies the light subjected to spatial light modulation by the spatial light modulation unit to the hologram recording medium via an objective lens; a light receiving unit that receives the light applied via the objective lens through the hologram recording medium; and a tilt detection unit that obtains a tilt error signal representing an error from an ideal angle of a tilt angle as an incident angle of the applied light via the objective lens to an information recording surface of the hologram recording medium based on a result of detection of an error between an ideal light reception position of the marker light in the light receiving unit and a real light reception position of the marker light by the light receiving unit.
摘要翻译：全息装置包括：光源，用于向具有记录层的全息记录介质施加光，其中通过信号光与参考光之间的干涉条纹执行信息记录; 空间调制单元，通过对来自光源的光进行空间光调制，生成信号光和/或参考光，并通过对来自光源的光的入射表面中的预定位置产生标记光; 照射单元，经由物镜将经空间光调制单元经空间光调制的光施加到全息图记录介质上; 光接收单元，其接收通过所述全息图记录介质经由所述物镜施加的光; 以及倾斜检测单元，其基于检测结果，从倾斜角的理想角度获得表示误差的倾斜误差信号作为经由物镜的所施加的光的入射角到全息图记录介质的信息记录表面在光接收单元中的标记光的理想光接收位置与由光接收单元的标记光的实际光接收位置之间的误差。

2. 发明授权

US08121010B2 Hologram device, tilt detection method, and tilt correction method 失效
标题翻译：全息装置，倾斜检测方法和倾斜校正方法
公开(公告)号：US08121010B2
公开(公告)日：2012-02-21
申请号：US12731306
申请日：2010-03-25
申请人： Akio Yamakawa , Yoshiki Okamoto , Kenji Tanaka , Kazutatsu Tokuyama , Koji Takasaki
发明人： Akio Yamakawa , Yoshiki Okamoto , Kenji Tanaka , Kazutatsu Tokuyama , Koji Takasaki
IPC分类号： G11B7/00
CPC分类号： G11B7/0956 , G11B7/0065 , G11B7/083
摘要： A hologram device includes: a light source for applying light to a hologram recording medium having a recording layer in which information recording is performed by interference fringes between signal light and reference light; a spatial modulation unit that generates the signal light and/or the reference light and generates a marker light in a predetermined position within an incident surface of the light from the light source by performing spatial light modulation on the light from the light source; a light applying unit that applies the light subjected to spatial light modulation by the spatial light modulation unit to the hologram recording medium via an objective lens; a light receiving unit that receives the light applied via the objective lens through the hologram recording medium; and a tilt detection unit that obtains a tilt error signal representing an error from an ideal angle of a tilt angle as an incident angle of the applied light via the objective lens to an information recording surface of the hologram recording medium based on a result of detection of an error between an ideal light reception position of the marker light in the light receiving unit and a real light reception position of the marker light by the light receiving unit.
摘要翻译：全息装置包括：光源，用于向具有记录层的全息记录介质施加光，其中通过信号光与参考光之间的干涉条纹执行信息记录; 空间调制单元，通过对来自光源的光进行空间光调制，生成信号光和/或参考光，并通过对来自光源的光的入射表面中的预定位置产生标记光; 照射单元，经由物镜将经空间光调制单元经空间光调制的光施加到全息图记录介质上; 光接收单元，其接收通过所述全息图记录介质经由所述物镜施加的光; 以及倾斜检测单元，其基于检测结果，从倾斜角的理想角度获得表示误差的倾斜误差信号作为经由物镜的所施加的光的入射角到全息图记录介质的信息记录表面在光接收单元中的标记光的理想光接收位置与由光接收单元的标记光的实际光接收位置之间的误差。

3. 发明授权

US08432591B2 Light irradiation device for recording information in a hologram recording medium 失效
标题翻译：用于在全息图记录介质中记录信息的光照射装置
公开(公告)号：US08432591B2
公开(公告)日：2013-04-30
申请号：US12704587
申请日：2010-02-12
申请人： Akio Yamakawa , Yoshiki Okamoto , Kenji Tanaka , Kazutatsu Tokuyama , Koji Takasaki
发明人： Akio Yamakawa , Yoshiki Okamoto , Kenji Tanaka , Kazutatsu Tokuyama , Koji Takasaki
IPC分类号： G03H1/04
CPC分类号： G11B7/1275 , G11B7/00781 , G11B7/083 , G11B7/0908 , G11B7/128 , G11B7/1374 , G11B7/1378 , G11B7/24038 , G11B7/24044
摘要： A light irradiation device includes: a focus servo control unit including a light source, a spatial light modulating unit, and a light irradiating unit, for focus servo control so that the ideal focal position of light via an objective lens is such that distance between an ideal focal position and a hologram recording medium surface is smaller than distance from the surface to the lower layer side face of the recording layer, and the focal position of light via the objective lens is constant at the ideal focal position; an objective-lens/relay-lens distance adjusting unit to adjust distance between the objective lens and a relay lens close to the objective lens; a light reception unit to receive marker light; and a constant distance control unit to control the objective-lens/relay-lens distance adjusting unit based on error between the ideal position of the marker light, and the actual position of the marker light.
摘要翻译：光照射装置包括：聚焦伺服控制单元，包括光源，空间光调制单元和光照射单元，用于聚焦伺服控制，使得经由物镜的光的理想焦点位置使得理想焦点位置和全息图记录介质表面小于记录层的表面到下层侧面的距离，并且通过物镜的光的焦点位置在理想焦点位置处是恒定的; 物镜/中继透镜距离调节单元，用于调整物镜与靠近物镜的中继透镜之间的距离; 光接收单元，用于接收标记光; 以及恒定距离控制单元，其基于标记光的理想位置与标记光的实际位置之间的误差来控制物镜/中继透镜距离调节单元。

4. 发明申请

US20100060960A1 REPRODUCTION DEVICE AND REPRODUCTION METHOD 审中-公开
标题翻译：复制设备和复制方法
公开(公告)号：US20100060960A1
公开(公告)日：2010-03-11
申请号：US12538318
申请日：2009-08-10
申请人： Kenji Tanaka , Koji Takasaki , Kazutatsu Tokuyama , Atsushi Fukumoto , Hidenori Mori , Yoshiki Okamoto
发明人： Kenji Tanaka , Koji Takasaki , Kazutatsu Tokuyama , Atsushi Fukumoto , Hidenori Mori , Yoshiki Okamoto
IPC分类号： G03H1/12 , G03H1/22 , G03H1/14
CPC分类号： G03H1/22 , G03H1/2286 , G03H2240/52 , G11B7/0065 , G11B7/128 , G11B7/1395
摘要： A reproduction device includes a light-emitting unit that emits reference light and coherent light, which is generated so as to have uniform light intensity and uniform phase, onto a hologram recording medium on which data is recorded by an interference pattern of signal light and the reference light, and a light-attenuating unit that attenuates the light intensity of the coherent light.
摘要翻译：一种再现装置包括发射单元，其发射参考光和相干光，其被产生以具有均匀的光强度和均匀相位到其上通过信号光的干涉图案记录数据的全息图记录介质上，并且以及衰减相干光的光强度的光衰减单元。

5. 发明申请

US20080144147A1 REPRODUCING APPARATUS AND REPRODUCING METHOD 失效
标题翻译：再现设备和再现方法
公开(公告)号：US20080144147A1
公开(公告)日：2008-06-19
申请号：US11947637
申请日：2007-11-29
申请人： Masaaki Hara , Mikio Sugiki , Kazutatsu Tokuyama , Mitsuru Toishi , Kenji Tanaka , Kazuyuki Hirooka
发明人： Masaaki Hara , Mikio Sugiki , Kazutatsu Tokuyama , Mitsuru Toishi , Kenji Tanaka , Kazuyuki Hirooka
IPC分类号： G03H1/02 , G03H1/12 , G03H1/22
CPC分类号： G03H1/22 , G03H2001/0441 , G03H2210/562 , G03H2223/12 , G03H2223/13 , G11B7/0065 , G11B7/083 , G11B7/128 , G11B7/1369
摘要： In a reproducing apparatus adapted to reproduce data recorded on a holographic recording medium, a reference light generator generates reference light for illuminating the holographic recording medium, and a coherent light generator generates coherent light having an intensity greater than the absolute value of a minimum amplitude of a reproduced image and having a phase equal to the phase of the reproduced image. An image signal acquisition unit senses the reproduced image produced by illuminating the holographic recording medium with the reference light and the coherent light, and acquires an image signal based on the reproduced image. A square root calculation unit calculates the square root of each of values constituting the image signal. A removal unit removes the component of the coherent light from the calculated square root, whereby the data recorded on the holographic recording medium is correctly reproduced.
摘要翻译：在适于再现记录在全息记录介质上的数据的再现装置中，参考光发生器产生用于照亮全息记录介质的参考光，并且相干光发生器产生具有大于最小幅度绝对值的强度的相干光再现图像并且具有等于再现图像的相位的相位。图像信号获取单元通过用参考光和相干光来感测通过照射全息记录介质产生的再现图像，并且基于再现的图像获取图像信号。平方根计算单元计算构成图像信号的每个值的平方根。去除单元从计算的平方根去除相干光的分量，由此记录在全息记录介质上的数据被正确地再现。

6. 发明授权

US07835049B2 Reproducing apparatus and reproducing method 失效
标题翻译：再现装置和再现方法
公开(公告)号：US07835049B2
公开(公告)日：2010-11-16
申请号：US11947637
申请日：2007-11-29
申请人： Masaaki Hara , Mikio Sugiki , Kazutatsu Tokuyama , Mitsuru Toishi , Kenji Tanaka , Kazuyuki Hirooka
发明人： Masaaki Hara , Mikio Sugiki , Kazutatsu Tokuyama , Mitsuru Toishi , Kenji Tanaka , Kazuyuki Hirooka
IPC分类号： G03H1/20
CPC分类号： G03H1/22 , G03H2001/0441 , G03H2210/562 , G03H2223/12 , G03H2223/13 , G11B7/0065 , G11B7/083 , G11B7/128 , G11B7/1369
摘要： In a reproducing apparatus adapted to reproduce data recorded on a holographic recording medium, a reference light generator generates reference light for illuminating the holographic recording medium, and a coherent light generator generates coherent light having an intensity greater than the absolute value of a minimum amplitude of a reproduced image and having a phase equal to the phase of the reproduced image. An image signal acquisition unit senses the reproduced image produced by illuminating the holographic recording medium with the reference light and the coherent light, and acquires an image signal based on the reproduced image. A square root calculation unit calculates the square root of each of values constituting the image signal. A removal unit removes the component of the coherent light from the calculated square root, whereby the data recorded on the holographic recording medium is correctly reproduced.
摘要翻译：在适于再现记录在全息记录介质上的数据的再现装置中，参考光发生器产生用于照亮全息记录介质的参考光，并且相干光发生器产生具有大于最小幅度绝对值的强度的相干光再现图像并且具有等于再现图像的相位的相位。图像信号获取单元通过用参考光和相干光来感测通过照射全息记录介质产生的再现图像，并且基于再现的图像获取图像信号。平方根计算单元计算构成图像信号的每个值的平方根。去除单元从计算的平方根去除相干光的分量，由此记录在全息记录介质上的数据被正确地再现。

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

US20100182662A1 RECORDING/REPRODUCTION METHOD AND HOLOGRAM RECORDING MEDIUM 审中-公开
标题翻译：记录/复制方法和HOLOGRAM记录介质
公开(公告)号：US20100182662A1
公开(公告)日：2010-07-22
申请号：US12648635
申请日：2009-12-29
申请人： Akio YAMAKAWA , Kenji Tanaka
发明人： Akio YAMAKAWA , Kenji Tanaka
IPC分类号： G03H1/02
CPC分类号： G11B7/0908 , G11B7/00772 , G11B7/083
摘要： A recording/reproduction method of performing recording/reproduction of a hologram by illuminating a hologram recording medium, which has a recording layer in which information is recorded by interference fringes between signal light and reference light, with the signal light and/or the reference light as recording/reproduction light through an objective lens includes the step of: setting a focal position of the recording/reproduction light such that a distance from a surface of the hologram recording medium to the focal position of the recording/reproduction light is larger than a distance from the surface to a lower-layer-side surface of the recording layer and illuminating the hologram recording medium including an angle-selective reflective layer, which is formed below the recording layer and has a selective light reflection/transmission characteristic depending on a light incidence angle, with the recording/reproduction light the focal position of which has been set.
摘要翻译：通过照亮具有信号光和参考光之间的干涉条纹记录信息的记录层的全息图记录介质与信号光和/或参考光进行全息图的记录/再现的记录/再现方法作为通过物镜的记录/再现光包括以下步骤：设置记录/再现光的焦点位置，使得从全息图记录介质的表面到记录/再现光的焦点位置的距离大于从记录层的表面到下层侧表面的距离，并照射包括形成在记录层下方并具有取决于光的选择性光反射/透射特性的角度选择反射层的全息图记录介质入射角，其焦点位置设定的记录/再现光。

9. 发明授权

US07995445B2 Optical pickup apparatus, reproduction apparatus, and reproduction method 失效
标题翻译：光学拾取装置，再现装置和再现方法
公开(公告)号：US07995445B2
公开(公告)日：2011-08-09
申请号：US12651715
申请日：2010-01-04
申请人： Akio Yamakawa , Kenji Tanaka
发明人： Akio Yamakawa , Kenji Tanaka
IPC分类号： G11B7/00
CPC分类号： G11B7/0065 , G11B7/13 , G11B7/1381
摘要： An optical pickup apparatus includes: a light source to irradiate light onto a hologram recording medium onto which information is recorded by interference fringes of signal light and reference light; a spatial light modulation portion to generate the reference light by performing a spatial light modulation on the light from the light source; and an optical system to irradiate the reference light onto the hologram recording medium via a relay lens system and an objective lens and guide reproduction light obtained from the hologram recording medium in accordance with the irradiation of the reference light to an image pickup device via the objective lens and the relay lens system, the optical system being provided with, in an optical path between the relay lens system and the image pickup device, an angle permselective device that selectively transmits light with an incidence angle of a predetermined angle or less.
摘要翻译：光学拾取装置包括：光源，用于将信号光和参考光的干涉条纹记录在其上记录信息的全息图记录介质上; 空间光调制部分，通过对来自光源的光进行空间光调制来产生参考光; 以及光学系统，用于经由中继透镜系统和物镜将参考光照射到全息图记录介质上，并且根据通过该目的将图像拾取装置的参考光照射从全息图记录介质获得的引导再现光透镜和中继透镜系统，光学系统在中继透镜系统和图像拾取装置之间的光路中设置有选择性地透射具有预定角度或更小的入射角的光的角度选择选择装置。

10. 发明申请

US20100172002A1 OPTICAL PICKUP APPARATUS, REPRODUCTION APPARATUS, AND REPRODUCTION METHOD 失效
标题翻译：光学拾取装置，复制装置和再现方法
公开(公告)号：US20100172002A1
公开(公告)日：2010-07-08
申请号：US12651715
申请日：2010-01-04
申请人： Akio Yamakawa , Kenji Tanaka
发明人： Akio Yamakawa , Kenji Tanaka
IPC分类号： G03H1/12 , G03H1/22
CPC分类号： G11B7/0065 , G11B7/13 , G11B7/1381
摘要： An optical pickup apparatus includes: a light source to irradiate light onto a hologram recording medium onto which information is recorded by interference fringes of signal light and reference light; a spatial light modulation portion to generate the reference light by performing a spatial light modulation on the light from the light source; and an optical system to irradiate the reference light onto the hologram recording medium via a relay lens system and an objective lens and guide reproduction light obtained from the hologram recording medium in accordance with the irradiation of the reference light to an image pickup device via the objective lens and the relay lens system, the optical system being provided with, in an optical path between the relay lens system and the image pickup device, an angle permselective device that selectively transmits light with an incidence angle of a predetermined angle or less.
摘要翻译：光学拾取装置包括：光源，用于将信号光和参考光的干涉条纹记录在其上记录信息的全息图记录介质上; 空间光调制部分，通过对来自光源的光进行空间光调制来产生参考光; 以及光学系统，用于经由中继透镜系统和物镜将参考光照射到全息图记录介质上，并且根据通过该目的将图像拾取装置的参考光照射从全息图记录介质获得的引导再现光透镜和中继透镜系统，光学系统在中继透镜系统和图像拾取装置之间的光路中设置有选择性地透射具有预定角度或更小的入射角的光的角度选择选择装置。

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