公开(公告)号：US06540397B2

公开(公告)日：2003-04-01

申请号：US09828693

申请日：2001-04-05

申请人： Jiro Yoshinari ,  Takuya Tsukagoshi ,  Hideki Hirata ,  Naoki Hayashida ,  Tokuyuki Honda ,  Mark E. McDonald ,  Michael V. Morelli ,  Andrew J. Daiber ,  Sanjoy Ghose ,  Lambertus Hesselink ,  Shunichi Nishimura ,  Sergei Sochava

发明人： Jiro Yoshinari ,  Takuya Tsukagoshi ,  Hideki Hirata ,  Naoki Hayashida ,  Tokuyuki Honda ,  Mark E. McDonald ,  Michael V. Morelli ,  Andrew J. Daiber ,  Sanjoy Ghose ,  Lambertus Hesselink ,  Shunichi Nishimura ,  Sergei Sochava

IPC分类号： G04B3700

CPC分类号： G11B7/0065 ,  G11B7/007 ,  G11B7/0938 ,  G11B7/24 ,  G11B7/243 ,  G11B7/244 ,  G11B7/2534 ,  G11B7/2595 ,  G11B2007/0013

摘要： An optical information medium comprising at least two data layers for bearing recorded information, and a servo layer for bearing tracking servo, information which is independently formed from the data layers; wherein the medium is used with a recording or reading system wherein a data beam for recording or reading the data in the data layer and a servo beam for reading the tracking servo information in the servo layer are used, and the servo layer is read by the servo beam that had passed through the data layer; and a filter layer is disposed between the data layer and the servo layer, and the filter layer exhibits higher absorption to the data beam than to the servo beam.

摘要翻译： 一种光信息介质，包括用于承载记录信息的至少两个数据层，以及用于承载跟踪伺服的伺服层，由数据层独立地形成的信息; 其中介质与记录或读取系统一起使用，其中使用用于记录或读取数据层中的数据的数据束和用于读取伺服层中的跟踪伺服信息的伺服光束，并且伺服层被读取 通过数据层的伺服光束; 并且在数据层和伺服层之间设置过滤层，并且过滤层对数据束的吸收比对伺服光束的吸收更高。

公开(公告)号：US07796312B2

公开(公告)日：2010-09-14

申请号：US10584410

申请日：2004-12-21

申请人： Takuya Tsukagoshi ,  Jiro Yoshinari ,  Hideaki Miura ,  Tetsuro Mizushima

发明人： Takuya Tsukagoshi ,  Jiro Yoshinari ,  Hideaki Miura ,  Tetsuro Mizushima

IPC分类号： G03H1/04 ,  G03H1/10 ,  G02B5/32

CPC分类号： G11B7/1275 ,  G03H1/16 ,  G03H1/2645 ,  G03H1/28 ,  G03H2001/2655 ,  G03H2210/22 ,  G03H2225/24 ,  G06K19/06037 ,  G06K2019/0629 ,  G11B7/0065 ,  G11B7/128

摘要： A holographic recording apparatus 10 realizes multilevel gray-scale recording by: controlling a reflection type spatial light modulator (DMD 18D) via a control unit 24 so that an object beam in an object optical system 18 is reflected in an exposure direction so as to be incident on a holographic recording medium 16 or in a non-exposure direction so as not to be incident thereon selectively pixel by pixel in accordance with a data page to be recorded; and making (N+1) levels of gradation exposure with a single exposure time t1 given by dividing t0 by N, where t0 is an exposure time necessary for rendering a single pixel of the data page as an ON pixel, and N is an integer of not less than 2.

摘要翻译： 全息记录装置10通过以下方式实现多级灰度记录：通过控制单元24控制反射型空间光调制器（DMD 18D），使得物体光学系统18中的物体光束以曝光方向反射，以便 在全息记录介质16上或非曝光方向入射，以便不会根据要记录的数据页被逐个入射到其上; 并且通过将t0除以N而给出的单个曝光时间t1来进行（N + 1）级别曝光，其中t0是将数据页的单个像素渲染为ON像素所需的曝光时间，N是整数 不低于2。

公开(公告)号：US07760407B2

公开(公告)日：2010-07-20

申请号：US10577245

申请日：2004-09-03

申请人： Takuya Tsukagoshi ,  Jiro Yoshinari ,  Hideaki Miura ,  Tetsuro Mizushima

发明人： Takuya Tsukagoshi ,  Jiro Yoshinari ,  Hideaki Miura ,  Tetsuro Mizushima

IPC分类号： G03H1/26 ,  G03H1/30 ,  G03H1/22

CPC分类号： G03H1/26 ,  G03H1/265 ,  G03H2001/2615 ,  G11B7/0065 ,  G11B7/24038 ,  G11B7/24044 ,  G11B2007/0013

摘要： A multilayer holographic recording medium that improves recording density and data transfer rates. The multilayer holographic recording medium, from which information is reproduced by a multilayer holographic memory reproducing apparatus, includes a plurality of deposited holographic recording layers. During recording, a reference beam is common to those holographic recording layers and an incident angle of an object beam is modulated for each holographic recording layer. During reproduction, a laser beam for reproduction having the same condition as that of the reference beam used for recording is projected thereonto, so that diffraction beams are simultaneously generated in the respective holographic recording layers to directions that are the same as incident directions of the object beam used for recording.

摘要翻译： 一种提高记录密度和数据传输速率的多层全息记录介质。 由多层全息记录再现装置再现信息的多层全息记录介质包括多个沉积的全息记录层。 在记录期间，对于这些全息记录层，参考光束是共同的，并且每个全息记录层调制对象光束的入射角。 在再现期间，将与用于记录的参考光束相同条件的用于再现的激光束投影到其上，使得在各个全息记录层中同时产生衍射光束至与物体的入射方向相同的方向 用于记录的光束。

公开(公告)号：US07672210B2

公开(公告)日：2010-03-02

申请号：US11587042

申请日：2005-04-01

申请人： Takuya Tsukagoshi ,  Tetsuro Mizushima ,  Jiro Yoshinari ,  Hideaki Miura

发明人： Takuya Tsukagoshi ,  Tetsuro Mizushima ,  Jiro Yoshinari ,  Hideaki Miura

IPC分类号： G11B7/00

CPC分类号： G03H1/0252 ,  G03H1/02 ,  G03H1/0256 ,  G03H1/0486 ,  G03H1/265 ,  G03H2001/026 ,  G03H2001/0432 ,  G03H2001/186 ,  G11B7/0065 ,  G11B7/2403 ,  G11B7/24044

摘要： A holographic recording medium 10 is configured to have a recording layer 12 on which information can be recorded as holograms; and first and second heat generating layers 14A and 14B provided in a pair so as to sandwich the recording layer 12. Then, the first and second heat generating layers 14A and 14B are allowed to generate heat by being irradiated with a heat generating laser beam LB3 having a wavelength that is different from that of a signal beam LB1 or a reference beam LB2 for reproducing or recording information. The holographic recording medium and a method for recording and reproducing the same, and a recording and reproducing apparatus can compensate for shrinkage of the recording layer due to recording or variations in temperature, thereby allowing for reproduction of the holograms under optimum conditions.

摘要翻译： 全息记录介质10被配置为具有其上可以记录信息作为全息图的记录层12; 并且一对设置成夹持记录层12的第一和第二发热层14A和14B。然后，通过用发热激光束LB3照射第一和第二发热层14A和14B来产生热量 具有与用于再现或记录信息的信号光束LB1或参考光束LB2不同的波长。 全息记录介质及其记录和再现方法，以及记录和再现装置可以补偿由于记录或温度变化引起的记录层的收缩，从而允许在最佳条件下再现全息图。

公开(公告)号：US07583422B2

公开(公告)日：2009-09-01

申请号：US10568594

申请日：2004-08-20

申请人： Tetsuro Mizushima ,  Takuya Tsukagoshi ,  Hideaki Miura ,  Jiro Yoshinari

发明人： Tetsuro Mizushima ,  Takuya Tsukagoshi ,  Hideaki Miura ,  Jiro Yoshinari

IPC分类号： G03H1/02

CPC分类号： G03H1/02 ,  G03H1/16 ,  G03H1/24 ,  G03H2250/37 ,  G03H2260/30 ,  G03H2270/20

摘要： A white-light reconstruction hologram and a Fourier hologram for data can be recorded in a same holographic recording medium. The holographic recording medium includes, in a substantially identical plane, a white-light reconstruction holographic recording layer region capable of forming a white-light reconstruction hologram, having a thickness of 2 μm to 80 μm, and a Fourier holographic recording layer region capable of multiplexed hologram recording, having a thickness of 100 μm to 2 cm.

摘要翻译： 用于数据的白光重构全息图和傅立叶全息图可以记录在相同的全息记录介质中。 全息记录介质在基本相同的平面中包括能够形成厚度为2μm至80μm的白光重建全息图的白光重建全息记录层区域和能够 多重全息图记录，厚度为100〜2cm。

公开(公告)号：US07518972B2

公开(公告)日：2009-04-14

申请号：US10579823

申请日：2004-11-04

申请人： Takuya Tsukagoshi ,  Jiro Yoshinari ,  Hideaki Miura ,  Tetsuro Mizushima

发明人： Takuya Tsukagoshi ,  Jiro Yoshinari ,  Hideaki Miura ,  Tetsuro Mizushima

IPC分类号： G11B7/00

CPC分类号： G03H1/26 ,  G11B7/0065 ,  G11B7/007 ,  G11B2007/0009

摘要： A holographic multiplex recording method is provided in which remaining dynamic range in each recording area is made more uniform upon holographic multiplex recording. In this holographic recording method, a first-stage recording spot row RX1 is formed by arranging recording spots RS in an X-axis direction without overlapping, and then a second-stage recording spot row RX2 formed of the recording spots RS without overlapping in the X-axis direction is recorded in a position for shift multiplex recording in a Y-axis direction. This is repeated to form a Y-axis direction first multiplex recording spot matrix TYX1. In this case, recording is performed to all recordable regions without shift multiplex recording in the X-axis direction. Subsequently, a Y-axis direction second multiplex recording spot matrix TYX2 is formed in a position shift-multiplexed in the X-axis direction with respect to the first-stage recording spot row RX1 initially recorded. The shift multiplex recording in the X-axis direction is performed in a similar manner up to a Y-axis direction last multiplex recording spot matrix TYXn to thereby complete the recording.

摘要翻译： 提供了一种全息多路复用记录方法，其中在全息多路复用记录时，使每个记录区域中的剩余动态范围更均匀。 在该全息记录方法中，通过在X轴方向上重叠记录点RS而形成第一级记录点列RX1，然后在记录点RS形成的第二级记录点列RX2 将X轴方向记录在Y轴方向的移动多路复用记录位置。 这被重复以形成Y轴方向的第一多路复用记录点矩阵TYX1。 在这种情况下，对X轴方向没有移位多路复用记录的所有可记录区域进行记录。 随后，相对于最初记录的第一级记录点列RX1在X轴方向上进行多位复用的位置上形成Y轴方向第二多路复用记录点矩阵TYX2。 以与Y轴方向最终多路复用记录点矩阵TYXn相同的方式进行X轴方向的移位复用记录，从而完成记录。

公开(公告)号：US07304774B2

公开(公告)日：2007-12-04

申请号：US10584130

申请日：2004-12-20

申请人： Takuya Tsukagoshi ,  Tetsuro Mizushima ,  Jiro Yoshinari ,  Hideaki Miura

发明人： Takuya Tsukagoshi ,  Tetsuro Mizushima ,  Jiro Yoshinari ,  Hideaki Miura

IPC分类号： G03H1/02

CPC分类号： G03H1/0256 ,  G03H1/02 ,  G03H2001/263 ,  G03H2250/34 ,  G03H2250/37 ,  G03H2250/39 ,  G03H2260/12 ,  G03H2260/30

摘要： A holographic recording medium 10 includes: a recording layer 12; two substrates 14 and 16 sandwiching the same; and a photosensitive protective layer 18 covering these recording layer 12 and substrates 14 and 16 entirely. The recording layer 12 is set so that its photosensitivity corresponding to a recording wavelength falls in the vicinity of the recording wavelength from shorter wavelengths to longer wavelengths. The photosensitive protective layer 18 is set so that its light transmittance corresponding to the recording wavelength falls in the vicinity of the recording wavelength from longer wavelengths to shorter wavelengths. This improves damage of the recording layer from ambient exposure without a drop in recording sensitivity.

摘要翻译： 全息记录介质10包括：记录层12; 两个基板14和16夹持它们; 以及完全覆盖这些记录层12和基板14和16的光敏保护层18。 记录层12被设定为使得其对应于记录波长的光敏性从较短波长延伸到记录波长附近。 感光保护层18被设定为使得其对应于记录波长的光透射率从较长的波长到较短的波长落在记录波长附近。 这改善了记录层对环境曝光的损害，而不会降低记录灵敏度。

公开(公告)号：US20070195390A1

公开(公告)日：2007-08-23

申请号：US11578330

申请日：2005-04-01

申请人： Takuya Tsukagoshi ,  Tetsuro Mizushima ,  Jiro Yoshinari ,  Hideaki Miura

发明人： Takuya Tsukagoshi ,  Tetsuro Mizushima ,  Jiro Yoshinari ,  Hideaki Miura

IPC分类号： G02B5/32

CPC分类号： G03H1/04 ,  G03H1/16 ,  G03H1/18 ,  G03H1/182 ,  G03H1/2286 ,  G03H1/26 ,  G03H1/265 ,  G03H2001/2289 ,  G03H2222/31 ,  G03H2222/34 ,  G03H2240/52 ,  G11B7/0065 ,  G11B7/083

摘要： A holographic recording method and a holographic recording apparatus which can provide a shortened time for recording and an improved data rate during recording even when the recording material has a low photosensitivity or the light source has a low power. This is achieved by, before a minimum exposure time for forming a reproducible hologram is reached, completing an interference exposure using signal light and reference light to form an incomplete hologram; performing an independent exposure for irradiating the incomplete hologram with the reference light after the interference exposure to thereby produce diffracted light; and recording information by means of interference between the reference light and the diffracted light.

摘要翻译： 一种全息记录方法和全息记录装置，即使在记录材料具有低光敏性或光源具有低功率的情况下，其可以提供缩短的记录时间和记录期间的改善的数据速率。 这是通过在用于形成可再现的全息图的最小曝光时间达到之前完成使用信号光和参考光的干涉曝光以形成不完全全息图来实现的; 在干涉曝光之后，用参考光进行独立曝光以照射不全息图，从而产生衍射光; 并通过参考光和衍射光之间的干涉记录信息。

公开(公告)号：US20070146839A1

公开(公告)日：2007-06-28

申请号：US10584130

申请日：2004-12-20

申请人： Takuya Tsukagoshi ,  Tetsuro Mizushima ,  Jiro Yoshinari ,  Hideaki Miura

发明人： Takuya Tsukagoshi ,  Tetsuro Mizushima ,  Jiro Yoshinari ,  Hideaki Miura

IPC分类号： G02B5/32

CPC分类号： G03H1/0256 ,  G03H1/02 ,  G03H2001/263 ,  G03H2250/34 ,  G03H2250/37 ,  G03H2250/39 ,  G03H2260/12 ,  G03H2260/30

摘要： A holographic recording medium 10 includes: a recording layer 12; two substrates 14 and 16 sandwiching the same; and a photosensitive protective layer 18 covering these recording layer 12 and substrates 14 and 16 entirely. The recording layer 12 is set so that its photosensitivity corresponding to a recording wavelength falls in the vicinity of the recording wavelength from shorter wavelengths to longer wavelengths. The photosensitive protective layer 18 is set so that its light transmittance corresponding to the recording wavelength falls in the vicinity of the recording wavelength from longer wavelengths to shorter wavelengths. This improves damage of the recording layer from ambient exposure without a drop in recording sensitivity.

公开(公告)号：US20070104068A1

公开(公告)日：2007-05-10

申请号：US10579823

申请日：2004-11-04

申请人： Takuya Tsukagoshi ,  Jiro Yoshinari ,  Hideaki Miura ,  Tetsuro Mizushima

发明人： Takuya Tsukagoshi ,  Jiro Yoshinari ,  Hideaki Miura ,  Tetsuro Mizushima

IPC分类号： G11B7/00

CPC分类号： G03H1/26 ,  G11B7/0065 ,  G11B7/007 ,  G11B2007/0009

摘要： A holographic multiplex recording method is provided in which remaining dynamic range in each recording area is made more uniform upon holographic multiplex recording. In this holographic recording method, a first-stage recording spot row RX1 is formed by arranging recording spots RS in an X-axis direction without overlapping, and then a second-stage recording spot row RX2 formed of the recording spots RS without overlapping in the X-axis direction is recorded in a position for shift multiplex recording in a Y-axis direction. This is repeated to form a Y-axis direction first multiplex recording spot matrix TYX1. In this case, recording is performed to all recordable regions without shift multiplex recording in the X-axis direction. Subsequently, a Y-axis direction second multiplex recording spot matrix TYX2 is formed in a position shift-multiplexed in the X-axis direction with respect to the first-stage recording spot row RX1 initially recorded. The shift multiplex recording in the X-axis direction is performed in a similar manner up to a Y-axis direction last multiplex recording spot matrix TYXn to thereby complete the recording.

摘要翻译： 提供了一种全息多路复用记录方法，其中在全息多路复用记录时，使每个记录区域中的剩余动态范围更均匀。 在该全息记录方法中，通过在X轴方向上重叠记录点RS而形成第一级记录点列RX 1，然后将第二级记录点列RX _{初始记录。 以与Y轴方向最终多路复用记录点矩阵TYX N类似的方式执行X轴方向上的移位多路复用记录，从而完成记录。}