公开(公告)号：EP1962286A1

公开(公告)日：2008-08-27

申请号：EP08002853.3

申请日：2008-02-15

申请人： Sony Corporation

发明人： Tanaka, Tomiji ,  Hara, Masaaki ,  Tokuyama, Kazutatsu ,  Seko, Satoru ,  Yamada, Shinji ,  Okada, Hitoshi

IPC分类号： G11B7/0065 ,  G11B7/135 ,  G03H1/22 ,  G02F1/1343

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，引导来自激光光源的激光，使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。

公开(公告)号：EP1955117A1

公开(公告)日：2008-08-13

申请号：EP06808548.9

申请日：2006-11-15

申请人： Evans, Richard Howard

发明人： WINTERBOTTOM, David, Roy ,  WILTSHIRE, John, David ,  EVANS, Richard, Howard

IPC分类号： G03H1/30

CPC分类号： G03H1/268 ,  G03H1/0248 ,  G03H1/181 ,  G03H1/202 ,  G03H1/265 ,  G03H2001/0027 ,  G03H2001/0417 ,  G03H2001/0482 ,  G03H2001/0497 ,  G03H2001/186 ,  G03H2001/2271 ,  G03H2001/2273 ,  G03H2222/15 ,  G03H2222/18 ,  G03H2240/42 ,  G03H2240/53 ,  G03H2250/40 ,  G03H2260/16

摘要： The present invention relates to a method and apparatus for producing a hologram, in particular a dot matrix volume hologram. A holographic recording system (1) comprises a source of optical radiation (7), a transparent or partially transparent holographic recording medium 6 and an optical system (10). The recording medium (6) has a first side (25), a second side (26) and a recording volume (36), the second side (26) being opposite to said first side (25) and the recording volume (36) being between said sides (25, 26). The recording medium (6) is positioned between the source of optical radiation (7) and the optical system (10) so that the first side (25) is presented towards the source of optical radiation (7) and the second side (26) is presented towards the optical system. The source (7) is arranged to project incident optical radiation (20) onto the first side (25) and through the recording volume (36) towards the optical system (10). The optical system (10) is arranged to redirect (32) the optical radiation back onto said second side (26) and into the recording volume (36) so that said incident (20) and redirected (32) optical radiation intersect within the recording volume (36) at an obtuse angle (34) to create an interference pattern (38) from which a holographic recording may be made.

公开(公告)号：EP1949186A2

公开(公告)日：2008-07-30

申请号：EP06837762.1

申请日：2006-11-15

申请人： CALIFORNIA INSTITUTE OF TECHNOLOGY

发明人： CHAO, Tien-Hsin

IPC分类号： G03H1/28 ,  G11C13/04

CPC分类号： G03H1/28 ,  G03H1/265 ,  G03H2001/0268 ,  G11C11/56 ,  G11C13/042

摘要： A holographic memory system and apparatus, and a method provide the ability to store mulitbit holograms in a photorefractive crystal. A single laser diode is configured to emit a collimated laser beam to both write a page of multibit data to and read the page of multibit data from the photorefractive crystal. A multilevel spatial light modulator (DMDSLM) is configured to encode the page of multibit data on an input beam split from the collimated laser beam. A first imaging relay lens pair is positioned between the multilevel spatial light modulator and the photorefractive crystal to image a multibit spatial light modulator image on a plane behind the photorefractive crystal. One or more mirrors are configured to steer a reference beam, split from the collimated laser beam, at high speed to the photorefractive crystal to read or write a page of the multi-bit data.

公开(公告)号：EP1936613A1

公开(公告)日：2008-06-25

申请号：EP06127030.2

申请日：2006-12-22

申请人： Deutsche Thomson OHG

发明人： Knittel, Joachim

IPC分类号： G11B7/0065 ,  G11B7/135

CPC分类号： G11B7/0065 ,  G03H1/0402 ,  G03H1/265 ,  G03H2223/16 ,  G11B7/1384

摘要： The present invention relates to a reference beam coupler (50) for an apparatus for reading from and/or writing to holographic storage media (36), to a multiplexing scheme using the reference beam coupler (50), and to an apparatus for reading from and/or writing to holographic storage media (36) using such reference beam coupler (50) or multiplexing scheme. According to the invention, the reference beam coupler (50) has:
- a substrate (51);
- one or more optical fibers (25) passing through the substrate (51) for coupling one or more reference beams (41); and
- a reflective area (53) on the substrate (51) for reflecting an object beam (26).

摘要翻译： 本发明涉及一种用于在装置的参考光束耦合器（50），用于读和/或使用该参考光束耦合器（50）写入到全息存储介质（36），以复用方案，并且向装置用于读 和/或写入到使用检查参考光束耦合器（50）或复用方案的全息存储介质（36）。 。根据本发明，参考光束耦合器（50）具有： - 一个基片（51）; - 一个或多个光纤（25）穿过所述基板（51），用于将一个或多个参考光束（41）; 和 - 在基板（51），用于反射在物体光束（26）的反射区域（53）。

公开(公告)号：EP1686434A1

公开(公告)日：2006-08-02

申请号：EP04817430.4

申请日：2004-11-04

申请人： DAI NIPPON PRINTING CO., LTD.

发明人： TANAKA, Akiko, DAI NIPPON PRINTING CO. LTD. ,  KITAMURA, Mitsuru, DAI NIPPON PRINTING CO. LTD.

IPC分类号： G03H1/08 ,  G06T15/00 ,  G06T17/40

CPC分类号： G03H1/08 ,  G03H1/0005 ,  G03H1/02 ,  G03H1/265 ,  G03H1/268 ,  G03H2001/0204 ,  G03H2001/0478 ,  G03H2001/0482 ,  G03H2001/0497 ,  G03H2001/303 ,  G03H2210/33 ,  G03H2210/36 ,  G03H2210/42 ,  G03H2210/441 ,  G03H2210/45 ,  G03H2210/454

摘要： The present invention relates to a method for fabricating a computer-generated hologram or a holographic stereogram which can reconstruct a three-dimensional object having visualized cross-sectional surfaces, wherein the three-dimensional object composed only of surface data is processed to have the visualized cross-sectional surfaces on a given cross section thereof by adding surface data to the cross-sectional surfaces. The method includes a step (ST11) of obtaining a number of two-dimensional cross-sectional image data of a three-dimensional object, a step (ST12) of producing three-dimensional object image data composed only of surface data of the three-dimensional object from the two-dimensional cross-sectional image data obtained in the above step, a step (ST13) of cutting the three-dimensional obj ect composed only of the surface data along a predetermined cross section, a step (ST14) of defining the shape of the three-dimensional object to be recorded as a hologram by adding surface data representing cross-sectional surfaces on the cut cross section to the same, steps (ST15)-(ST17) of defining the arrangement of the defined three-dimensional object, a hologram plane, and a reference beam to compute interference fringes on the hologram plane, and steps (ST18)-(ST20) of recording the thus computed interference fringes on a recording medium.

摘要翻译： 本发明涉及一种用于制造计算机产生全息图或全息立体图哪可以重建具有可视化横截面表面的三维物体，worin只有表面数据组成的三维物体被处理以具有可视化 通过添加表面数据，以横截面其表面上的给定横截面的横截面表面。 该方法包括：获取一个数仅产生的三维的表面数据组成的三维物体的图像数据的三维物体，步骤（ST12）的二维剖面图像数据的步骤（ST11） 从二维截面的imageData三维物体在切割三维OBJ ECT沿着预定的横截面，一个步骤（ST14）中，只有表面数据构成的上述步骤中，步骤（ST13）中获得的限定 的（ST17），定义所定义的三维的排列 - 的三维物体的形状，以通过将表示上切割的横截面的相同，步骤（ST15）的横截面表面的表面的数据被记录为全息图 对象，计划一个全息图，和参考光束来计算所述全息图平面的干涉条纹，及步骤（ST18） - 记录的（ST20），从而在记录介质上计算出的干涉条纹。

公开(公告)号：EP1671318A2

公开(公告)日：2006-06-21

申请号：EP04794683.5

申请日：2004-10-08

申请人： Aprilis, Inc.

发明人： WALDMAN, David, A. ,  JOSEPH, Joby

IPC分类号： G11B7/0065 ,  G11C13/04 ,  G03H1/02

CPC分类号： G03H1/265 ,  G03H1/16 ,  G03H1/26 ,  G03H2225/32 ,  G11B7/0065

摘要： An apparatus for writing and reading holograms, comprising a spatial light modulator (SLM,104) operable in phase mode, having a plurality of pixels (103) for generating an object beam (110) that overlaps with a reference beam (120); a holographic recording medium (HRM,114) in the path of the object beam; and a first lens element (108) disposed in the path of the object beam between the SLM and the HRM; wherein the HRM is disposed at or near the Fourier transform plane of the first lens element.

公开(公告)号：EP1638090A1

公开(公告)日：2006-03-22

申请号：EP04745457.4

申请日：2004-05-31

申请人： TDK Corporation

发明人： TSUKAGOSHI, Takuya, TDK Corporation ,  YOSHINARI, Jiro, TDK Corporation

IPC分类号： G11B7/0045 ,  G11B7/0065 ,  G11B7/135 ,  G03H1/04 ,  G03H1/26 ,  G02B26/04

CPC分类号： G02B26/04 ,  G03H1/26 ,  G03H1/265 ,  G11B7/1374 ,  G11B7/1378

摘要： A holographic recording system with a simple structure is provided that can make a holographic recording beam follow a recording medium traveling even at high speed. The holographic recording system 10 includes a chopper lens 30 that travels in synchronization with and in a same direction as the holographic recording medium 14. The chopper lens 30 is formed so as to move the axes of incident information and reference beams relative to the recording medium and the chopper lens, and to irradiate them to an identical information recording region 15 in the holographic recording medium 14.

摘要翻译： 提供具有简单结构的全息记录系统，其可以使全息记录光束跟随高速行进的记录介质。 全息记录系统10包括与全息记录介质14同步且沿相同方向行进的斩波透镜30.斩波透镜30被形成为使得相对于记录介质移动入射信息和参考光束的轴 和斩波透镜，并将其照射到全息记录介质14中的相同信息记录区域15。

公开(公告)号：EP1630627A2

公开(公告)日：2006-03-01

申请号：EP05254838.5

申请日：2005-08-03

申请人： ALPS ELECTRIC CO., LTD.

发明人： Someno, Yoshihiro, Alps Electric Co., Ltd. ,  Mitsuya, Shinji, Alps Electric Co., Ltd.

IPC分类号： G03H1/26 ,  G11B7/0065

CPC分类号： G03H1/22 ,  G03H1/2286 ,  G03H1/26 ,  G03H1/265 ,  G03H2222/34 ,  G03H2223/12 ,  G11B7/0065

摘要： A holographic device includes a reference beam unit (1) that makes reference beams (15) incident on a plurality of holograms (31) formed in a plate-shaped recording medium (30); and a light receiving unit (2) that receives exiting light (33) diffracted by the holograms. The reference beam unit includes a light emitting part (10) that emits the reference beams (15), and sets the incidence position and the incidence angle of each of the reference beams emitted from the light emitting part such that each of the reference beams is incident on one of the plurality of holograms disposed in the thicknesswise direction of the recording medium. The light receiving unit includes a light receiving part (20) that receives the exiting light from the holograms and a pin-hole filter (21) disposed between the light receiving part (20) and the recording medium (30). The pin-hole filter transmits only exiting light from one of the plurality of holograms disposed in the thicknesswise direction of the recording medium, the one of the plurality of holograms corresponding to the incidence position and the incidence angle set by the reference beam unit, and blocks exiting light from the other holograms.

摘要翻译： 全息装置包括：参考光束单元（1），其使参考光束（15）入射到形成在板状记录介质（30）中的多个全息图（31）上; 以及受光单元（2），其接收由全息图衍射的出射光（33）。 参考光束单元包括发射参考光束（15）的发光部分（10），并且设置从发光部分发射的每个参考光束的入射位置和入射角，使得每个参考光束为 入射到设置在记录介质的厚度方向上的多个全息图之一上。 光接收单元包括接收来自全息图的出射光的光接收部分（20）和设置在光接收部分（20）和记录介质（30）之间的针孔滤光器（21）。 针孔滤光器仅透射从设置在记录介质的厚度方向上的多个全息图中的一个的出射光，多个全息图中的一个对应于入射位置和由参考光束单元设置的入射角， 阻挡从其他全息图射出的光。

公开(公告)号：EP1616226A1

公开(公告)日：2006-01-18

申请号：EP03705542.3

申请日：2003-01-23

申请人： Fleming, John Stuart

发明人： Fleming, John Stuart

IPC分类号： G03H1/24 ,  G03H1/26

CPC分类号： G03H1/26 ,  G03H1/2286 ,  G03H1/24 ,  G03H1/265 ,  G03H2001/2223 ,  G03H2001/2273 ,  G03H2227/06

摘要： An improved system is disclosed for displaying multi-image or animated holograms, in which the angle at which the incoming light illuminates the hologram is varied over time. In a preferred form, the display includes an enclosure (76) having top and bottom portions (78, 80), two sides portions (82, 84), rear and front portions (86, 88) with a viewing opening (90). A hologram (10) is attached to the inner wall (86) of the enclosure. At one side (84) of the enclosure, a mirror (92) is mounted in place by bracket (94), and at the other side (82), a light assembly (96) directs light emitted by a movable lamp (110) to the mirror (92) from which it is reflected onto the hologram (10).

公开(公告)号：EP1482488A3

公开(公告)日：2006-01-04

申请号：EP04012605.4

申请日：2004-05-27

申请人： Daewoo Electronics Corporation

发明人： Park, Joo-Youn

IPC分类号： G11B7/0065 ,  G11B7/085 ,  G11B7/09 ,  G11B7/135

CPC分类号： G11B7/08564 ,  G03H1/265 ,  G03H2001/0473 ,  G03H2001/2223 ,  G11B7/0065 ,  G11B7/0937 ,  G11C13/042

摘要： A holographic apparatus including an actuated mirror includes a fixed body having a first piezo-actuator (522) protrudingly installed thereat; a movable body (530) rectilinearly movable and having a second piezo-actuator (532) protrudingly installed thereat; a rotatable body (540) mounting thereon a mirror (542) and rotatably installed at the movable body; and springs (550) for connecting the fixed body and the movable body and connecting the movable body and the rotatable body to enable a rotational movement of the rotatable body and a rectilinear movement of the movable body. A first prominence (533) is installed at the movable body and in contact with a first piezo-actuator (522) and a second prominence (543) is installed at the rotatable body (540) and in contact with a second piezo-actuator (532). Moreover, the first and the second piezo-actuators are controllable to be expanded or contracted.

摘要翻译： 该装置具有致动反射镜单元（500），其包括分别包括压电致动器的固定和可移动体。 可旋转体安装在反光镜上并可旋转地安装在可动体上。 两个突起（533,543）分别安装在与致动器分别接触的可动和可旋转体上。 两个致动器可控制以扩展或收缩。 全息方法也包括独立权利要求。