公开(公告)号：US06865002B2

公开(公告)日：2005-03-08

申请号：US10362420

申请日：2002-06-19

申请人： Nobuhiro Kihara ,  Megumi Ezura ,  Akira Shirakura

发明人： Nobuhiro Kihara ,  Megumi Ezura ,  Akira Shirakura

IPC分类号： G03H1/04 ,  G03H1/26

CPC分类号： G03H1/26 ,  G03H1/0493 ,  G03H1/268 ,  G03H2001/026 ,  G03H2001/0415 ,  G03H2001/0495 ,  G03H2001/2276 ,  G03H2001/267 ,  G03H2001/2685 ,  G03H2210/22 ,  G03H2222/31 ,  G03H2240/15 ,  G03H2250/41 ,  G03H2260/51

摘要： An image exposure recorder for exposure-recording a holographic stereogram image or a hologram image on a recording medium for hologram. The recorder has an inverse correction system for rotating the polarization plane of a reference light (R) by means of a half-wave plate (11), directing the reference light (R) to a hologram recording medium (3), and measuring the intensity of a part of the reference light (R) transmitted through a polarizer (12) out of the reference light (R) transmitted through a part of the area of the hologram recording medium by means of a photodetector (13). In the inverse correction system, the angle of rotation of the half-wave plate is so determined that the intensity of the reference light (R) determined by the photodetector may be minimum or maximum. Therefore the degradation of the coherence between the object light and the reference light attributed to the transmission of the object and reference lights through the hologram recording medium having birefringence is prevented, and thus a holographic stereogram for reproducing a bright holographic stereogram image is fabricated.

摘要翻译： 一种用于在全息图的记录介质上曝光记录全息立体图像或全息图像的图像曝光记录器。 记录仪具有用于通过半波片（11）旋转参考光（R）的偏振面的逆校正系统，将参考光（R）引导到全息图记录介质（3），并测量 通过借助于光电检测器（13）透射通过全息图记录介质的一部分区域的参考光（R）透射通过偏振器（12）的参考光（R）的一部分的强度。 在逆校正系统中，半波片的旋转角被确定为由光电检测器确定的参考光（R）的强度可以是最小或最大。 因此，防止由于物体和参考光通过具有双折射的全息图记录介质而导致的对象光和参考光之间的相干性的劣化，因此制造了用于再现亮全息立体图像的全息立体图。

公开(公告)号：US20060221421A1

公开(公告)日：2006-10-05

申请号：US11276527

申请日：2006-03-03

申请人： Tomoki Kanesaka ,  Nobuhiro Kihara ,  Shigeyuki Baba ,  Hisayuki Yamatsu ,  Megumi Ezura

发明人： Tomoki Kanesaka ,  Nobuhiro Kihara ,  Shigeyuki Baba ,  Hisayuki Yamatsu ,  Megumi Ezura

IPC分类号： G03H1/02

CPC分类号： G11C13/042 ,  G03H1/16 ,  G03H2225/55 ,  G11B7/0065 ,  G11B7/00781 ,  G11B7/1392

摘要： A hologram recording device for recording interference fringes between reference light and signal light modulated by data displayed in a spatial modulator in a hologram recording material, the hologram recording device including a phase mask for diffusing light, the phase mask being disposed in an optical system that the signal light passes, wherein a minimum unit of a light diffusing pattern formed in the phase mask is a natural number of times a minimum unit of display data of the spatial modulator.

摘要翻译： 一种全息记录装置，用于记录参考光和由全息图记录材料中的空间调制器中显示的数据调制的信号光之间的干涉条纹，所述全息图记录装置包括用于漫射光的相位掩模，所述相位掩模设置在光学系统中， 信号光通过，其中形成在相位掩模中的光漫射图案的最小单位是空间调制器的显示数据的最小单位的自然次数。

公开(公告)号：US20060126143A1

公开(公告)日：2006-06-15

申请号：US11281464

申请日：2005-11-18

申请人： Megumi Ezura ,  Tomoki Kanesaka ,  Nobuhiro Kihara

发明人： Megumi Ezura ,  Tomoki Kanesaka ,  Nobuhiro Kihara

IPC分类号： G03H1/28

CPC分类号： G11B7/0065 ,  G03H1/265

摘要： In recording of an interference fringe of a reference beam and a signal beam in a hologram recording medium, at the time of multiple recording of holograms in the same recording region by varying the angle of incidence of the reference beam on the hologram recording medium, the angular pitch of the incidence angle of the reference beam is varied according to the incidence angle of the reference beam in the manner of Δθ1, Δθ2, . . . , Δθm−1, and is thereby set to a minimum in such a range as not to worsen crosstalk. This makes it possible to increase the degree of multiplexing when the movable angle of the reference beam is the same, and to narrow the movable angle of the reference beam when the degree of multiplexing is the same, as compared with the related art.

公开(公告)号：US07061656B2

公开(公告)日：2006-06-13

申请号：US10468307

申请日：2002-02-20

申请人： Megumi Ezura ,  Nobuhiro Kihara

发明人： Megumi Ezura ,  Nobuhiro Kihara

IPC分类号： G03H1/20

CPC分类号： G03H1/268 ,  G03H1/0408 ,  G03H1/20 ,  G03H2001/2685 ,  G03H2001/269

摘要： A hologram duplicating apparatus (10) includes a first optical system (30) for carrying out exposure recording of holographic stereogram image on a recording medium for hologram to produce an original H1, a second optical system (60) for carrying out exposure recording of image recorded on the original H1 on a recording medium for hologram disposed at a predetermined distance from the original H1 by using diffracted light obtained by illuminating the original H1 to produce intermediate hologram H2, and a third optical system (70) for carrying out exposure recording of image recorded on the intermediate hologram H2 on a recording medium for hologram disposed at a predetermined distance from the intermediate hologram H2 by using diffracted light obtained by illuminating the intermediate hologram H2 to produce edge lit hologram H3.

摘要翻译： 全息复制装置（10）包括：第一光学系统（30），用于在全息图的记录介质上进行全息立体图像的曝光记录，以产生原始的H 1，第二光学系统（60 ），用于在通过使用由原始H 1 1获得的衍射光设置在与原始H 1 1预定距离的全息图的记录介质上进行在原始H 1 1上记录的图像的曝光记录 照亮原始H 1 1以产生中间全息图H 2 2，以及用于进行记录在中间全息图H 2上的图像的曝光记录的第三光学系统（70） 2在通过使用通过照射中间全息图H 2 2获得的衍射光而设置在距离中间全息图H 2 2 +预定距离的全息图的记录介质上，以产生 边缘照明全息图H 3 3。

公开(公告)号：US20060013104A1

公开(公告)日：2006-01-19

申请号：US11177429

申请日：2005-07-11

申请人： Nobuhiro Kihara ,  Hisayuki Yamatsu ,  Megumi Ezura

发明人： Nobuhiro Kihara ,  Hisayuki Yamatsu ,  Megumi Ezura

IPC分类号： G11B7/00

CPC分类号： G11B7/0065 ,  G11C13/042

摘要： The present invention provides a hologram apparatus for recording an interference fringe of a signal beam and a reference beam having a speckle pattern in a recording area of a hologram recording material. The hologram apparatus includes a speckle pattern generating unit for generating the speckle pattern so that the speckle pattern is different in form in the track direction and the cross-track direction of the recording area. With this configuration, it is possible to perform recording under an increased tolerance in the cross-track direction while securing the shift selectivity necessary in the track direction, and, hence, to easily and stably perform the tracking servo at the time of reproduction.

公开(公告)号：US07576899B2

公开(公告)日：2009-08-18

申请号：US11276527

申请日：2006-03-03

申请人： Tomoki Kanesaka ,  Nobuhiro Kihara ,  Shigeyuki Baba ,  Hisayuki Yamatsu ,  Megumi Ezura

发明人： Tomoki Kanesaka ,  Nobuhiro Kihara ,  Shigeyuki Baba ,  Hisayuki Yamatsu ,  Megumi Ezura

IPC分类号： G02B5/32

CPC分类号： G11C13/042 ,  G03H1/16 ,  G03H2225/55 ,  G11B7/0065 ,  G11B7/00781 ,  G11B7/1392

摘要： A hologram recording device for recording interference fringes between reference light and signal light modulated by data displayed in a spatial modulator in a hologram recording material, the hologram recording device including a phase mask for diffusing light, the phase mask being disposed in an optical system that the signal light passes, wherein a minimum unit of a light diffusing pattern formed in the phase mask is a natural number of times a minimum unit of display data of the spatial modulator.

摘要翻译： 一种全息记录装置，用于记录参考光和由全息图记录材料中的空间调制器中显示的数据调制的信号光之间的干涉条纹，所述全息图记录装置包括用于漫射光的相位掩模，所述相位掩模设置在光学系统中， 信号光通过，其中形成在相位掩模中的光漫射图案的最小单位是空间调制器的显示数据的最小单位的自然次数。

公开(公告)号：US07496024B2

公开(公告)日：2009-02-24

申请号：US11177429

申请日：2005-07-11

申请人： Nobuhiro Kihara ,  Hisayuki Yamatsu ,  Megumi Ezura

发明人： Nobuhiro Kihara ,  Hisayuki Yamatsu ,  Megumi Ezura

IPC分类号： G11B7/00

CPC分类号： G11B7/0065 ,  G11C13/042

摘要： The present invention provides a hologram apparatus for recording an interference fringe of a signal beam and a reference beam having a speckle pattern in a recording area of a hologram recording material. The hologram apparatus includes a speckle pattern generating unit for generating the speckle pattern so that the speckle pattern is different in form in the track direction and the cross-track direction of the recording area. With this configuration, it is possible to perform recording under an increased tolerance in the cross-track direction while securing the shift selectivity necessary in the track direction, and, hence, to easily and stably perform the tracking servo at the time of reproduction.

摘要翻译： 本发明提供一种用于在全息图记录材料的记录区域中记录信号光束的干涉条纹和具有散斑图案的参考光束的全息图装置。 全息图装置包括用于产生斑纹图案的斑纹图案生成单元，使得斑点图案在记录区域的轨迹方向和横向方向上的形式不同。 利用这种配置，可以在确保沿轨道方向所需的移位选择性的同时，在跨轨道方向上增加的公差进行记录，并且因此在再现时容易且稳定地执行跟踪伺服。

公开(公告)号：US07489427B2

公开(公告)日：2009-02-10

申请号：US11281464

申请日：2005-11-18

申请人： Megumi Ezura ,  Tomoki Kanesaka ,  Nobuhiro Kihara

发明人： Megumi Ezura ,  Tomoki Kanesaka ,  Nobuhiro Kihara

IPC分类号： G03H1/10 ,  G03H1/26

CPC分类号： G11B7/0065 ,  G03H1/265

摘要： In recording of an interference fringe of a reference beam and a signal beam in a hologram recording medium, at the time of multiple recording of holograms in the same recording region by varying the angle of incidence of the reference beam on the hologram recording medium, the angular pitch of the incidence angle of the reference beam is varied according to the incidence angle of the reference beam in the manner of Δθ1, Δθ2, . . . , Δθm−1, and is thereby set to a minimum in such a range as not to worsen crosstalk. This makes it possible to increase the degree of multiplexing when the movable angle of the reference beam is the same, and to narrow the movable angle of the reference beam when the degree of multiplexing is the same, as compared with the related art.

摘要翻译： 在记录全息记录介质中的参考光束和信号光束的干涉条纹时，通过改变全息图记录介质上的参考光束的入射角，在同一记录区域中多次记录全息图时， 参考光束的入射角的角度距离根据参考光束的入射角以Deltatheta1，Deltatheta2的方式变化。 。 。 ，Deltathetam-1，从而在不会恶化串扰的范围内设定为最小。 这使得当参考光束的可移动角度相同时，可以增加多路复用度，并且在多路复用程度相同时缩小参考光束的可移动角度，与现有技术相比。