公开(公告)号：US20180329127A1

公开(公告)日：2018-11-15

申请号：US15775649

申请日：2016-11-18

Applicant: Covestro Deutschland AG

Inventor： Thomas FÄCKE ,  Friedrich-Karl BRUDER ,  Günther WALZE ,  Andrey PUTILIN

IPC: G02B5/32 ,  G03H1/02 ,  G03H1/04

CPC classification number: G02B5/32 ,  G03H1/0248 ,  G03H1/0404 ,  G03H1/28 ,  G03H2001/2226 ,  G03H2240/52 ,  G03H2240/54 ,  G03H2240/55 ,  G03H2260/12

Abstract: The invention relates to a method for recording a plurality of scatter volume holograms in a photopolymeric recording medium, the method comprising at least the following steps providing a first laser light source, providing a photopolymeric recording medium comprising a substrate and a photoactive layer, wherein the photopolymeric recording medium has an index modulation Δn of at least 0.04 and a thickness d of the photoactive layer of at least 25 μm, irradiating the photopolymeric recording medium with the first laser light beam generated by the first laser light source with a minimum irradiation energy dosage of 3*Di, Di; being the inhibition dosage of the photoactive layer, wherein the irradiation of the photopolymeric recording medium is performed such that the light of the irradiating first laser light beam is scattered at scattering centers, the scattering centers being generated by the chemical react ion in the photoactive layer induced by the first laser light beam thus forming a plurality of scatter volume holo grams by interaction between the irradiating first laser light beam and the scattered light of the first laser light beam.

公开(公告)号：US09599959B2

公开(公告)日：2017-03-21

申请号：US14427223

申请日：2013-09-10

Applicant: Universite Libre de Bruxelles

Inventor： Frank Dubois ,  Catherine Yourassowsky

IPC: G03H1/04 ,  G02B6/06 ,  G03H1/26 ,  G03H1/02 ,  G03H1/00

CPC classification number: G03H1/0404 ,  G02B6/06 ,  G03H1/0005 ,  G03H1/02 ,  G03H1/0402 ,  G03H1/0443 ,  G03H1/26 ,  G03H1/265 ,  G03H2001/005 ,  G03H2001/0216 ,  G03H2001/0413 ,  G03H2001/0447 ,  G03H2001/0471 ,  G03H2223/16 ,  G03H2223/17

Abstract: The present invention is related to an holographic probe device for recording a gabor hologram comprising: a coherent optical fiber bundle comprising a distal end and a proximal end; a recording medium optically coupled to the proximal end of the coherent optical fiber bundle; a light source producing in use a single light beam, illuminating the distal end of the coherent optical fiber bundle and the object to be observed.

公开(公告)号：US20150248110A1

公开(公告)日：2015-09-03

申请号：US14427223

申请日：2013-09-10

Applicant: UNIVERSITE LIBRE DE BRUXELLES

Inventor： Frank Dubois ,  Catherine Yourassowsky

IPC: G03H1/04 ,  G02B6/06 ,  G03H1/26 ,  G03H1/02 ,  G03H1/00

CPC classification number: G03H1/0404 ,  G02B6/06 ,  G03H1/0005 ,  G03H1/02 ,  G03H1/0402 ,  G03H1/0443 ,  G03H1/26 ,  G03H1/265 ,  G03H2001/005 ,  G03H2001/0216 ,  G03H2001/0413 ,  G03H2001/0447 ,  G03H2001/0471 ,  G03H2223/16 ,  G03H2223/17

Abstract: The present invention is related to an holographic probe device for recording gabor hologram comprising: a coherent optical fiber bundle comprising a distal end and a proximal end; a recording medium optically coupled to the proximal end of the coherent optical fiber bundle; a light source producing in use a single light beam, illuminating the distal end of the coherent optical fiber bundle and the object to be observed.

Abstract translation: 本发明涉及一种用于记录gabor全息图的全息探针装置，包括：包括远端和近端的相干光纤束; 光学耦合到相干光纤束的近端的记录介质; 在使用中产生单个光束的光源，照射相干光纤束的远端和要观察的物体。

公开(公告)号：US08014255B2

公开(公告)日：2011-09-06

申请号：US12024151

申请日：2008-02-01

Applicant: Katsunori Kawano ,  Makoto Furuki ,  Jiro Minabe

Inventor： Katsunori Kawano ,  Makoto Furuki ,  Jiro Minabe

IPC: G11B7/00

CPC classification number: G11B7/1395 ,  G03H1/0404 ,  G03H1/12 ,  G03H2210/22 ,  G03H2223/13 ,  G11B7/0065 ,  G11B7/1362

Abstract: A holographic recording apparatus is provided and includes: a signal light generation section that generates signal light modulated according to digital data; a reference light generation section that generates reference light modulated by means of a pixel pitch; a adding section that adds, in proximity to a light-convergence position where the signal light and the reference light come close to each other or overlap each other, a low-order component of the signal light obtained by Fourier transform and a high-order component of the reference light obtained by Fourier transform, the high-order component of the reference light having a spatial frequency region differing from that of the low-order component of the signal light; and an illumination optical system that irradiate an optical recording medium with the added signal and reference light.

Abstract translation: 提供一种全息记录装置，包括：信号光生成部，生成根据数字数据调制的信号光; 参考光生成部，其生成通过像素间距调制的参照光; 附加部分，其在信号光和参考光彼此靠近或彼此重叠的光会聚位置附近增加通过傅立叶变换和高阶获得的信号光的低阶分量 通过傅里叶变换获得的参考光的分量，具有与信号光的低阶分量不同的空间频率区域的参考光的高阶分量; 以及照射光学系统，其对添加的信号和参考光照射光学记录介质。

公开(公告)号：US20100097676A1

公开(公告)日：2010-04-22

申请号：US12587182

申请日：2009-10-02

Applicant: Joachim Knittel ,  Frank Przygodda

Inventor： Joachim Knittel ,  Frank Przygodda

IPC: G03H1/16

CPC classification number: G11B7/1381 ,  G03H1/0404 ,  G03H1/12 ,  G03H1/16 ,  G03H2001/0415 ,  G03H2222/35 ,  G11B7/0065 ,  G11B7/127 ,  G11B2007/13727

Abstract: A holographic storage system having an improved data page quality is described. The holographic storage system includes a special optical filter or a special light source for emphasizing the high frequency components of a reference beam and/or an object beam. This is achieved by an optical filter arranged in a Fourier plane, which has a higher attenuation at the center than at the edge. Alternatively, an adapted light source for generating the reference beam and/or the object beam is arranged in a Fourier plane. The light beam emitted by the light source has a higher intensity close to the edge than at is the center.

Abstract translation: 描述了具有改进的数据页面质量的全息存储系统。 全息存储系统包括专用光学滤波器或用于强调参考光束和/或物体光束的高频分量的专用光源。 这通过布置在傅立叶平面中的滤光器来实现，其在中心处具有比在边缘处更高的衰减。 或者，用于产生参考光束和/或物体光束的适配光源被布置在傅立叶平面中。 由光源发射的光束靠近边缘具有比在中心处更高的强度。

公开(公告)号：US20070263268A1

公开(公告)日：2007-11-15

申请号：US11880129

申请日：2007-07-20

Applicant: Hiroyasu Yoshikawa ,  Kouichi Tezuka ,  Kazushi Uno

Inventor： Hiroyasu Yoshikawa ,  Kouichi Tezuka ,  Kazushi Uno

IPC: G03H1/10

CPC classification number: G03H1/0404 ,  G03H1/0402 ,  G03H2001/0415 ,  G03H2223/13 ,  G03H2223/17 ,  G03H2225/24 ,  G03H2250/42 ,  G11B7/0065 ,  G11B7/1395 ,  G11C13/042

Abstract: A hologram recorder A1 includes a light source (1) of a coherent light beam and a spatial light modulator (5A) for modulating a part of the light beam from the light source (1) into a recording beam which carries two-dimensional information. Another part of the light beam is used as a reference beam to interfere with the recording beam. The recording beam and the reference beam are directed to a hologram recording medium (B). A semi-translucent optical device (4) is disposed between the light source (1) and the spatial light modulator (SA) for letting a part of the beam travel to the spatial light modulator (5A) as a transmitted beam while letting another part of the beam travel to the hologram recording medium (B) as a reflected beam. The recording beam and the reference beam, after being separated from each other by the optical device (4) as the transmitted beam and the reflected beam, travel along the same optical path (L) to irradiate the hologram recording medium (B).

Abstract translation: 全息记录器A 1包括相干光束的光源（1）和用于将来自光源（1）的光束的一部分调制成记录光束的空间光调制器（5A），该记录光束携带二维 信息。 光束的另一部分被用作参考光束以干涉记录光束。 记录光束和参考光束被引导到全息记录介质（B）。 半光半导体光学器件（4）设置在光源（1）和空间光调制器（SA）之间，用于使一部分光束作为透射光束行进到空间光调制器（5A），同时让另一个 光束的一部分作为反射光束行进到全息图记录介质（B）。 记录光束和参考光束在作为透射光束和反射光束的光学装置（4）彼此分离之后，沿着相同的光路（L）行进以照射全息图记录介质（B）。

公开(公告)号：US07099057B2

公开(公告)日：2006-08-29

申请号：US10657451

申请日：2003-09-08

Applicant: William P. Parker ,  Julie W. Parker

Inventor： William P. Parker ,  Julie W. Parker

IPC: G02B5/32

CPC classification number: G03F7/70408 ,  B23K26/066 ,  G02B5/32 ,  G03H1/0404 ,  G03H2001/0094 ,  G03H2001/2289 ,  G03H2210/12 ,  G03H2210/20 ,  G03H2240/52 ,  Y10S359/90

Abstract: A method of fabricating a holographic mask includes the steps of providing an illumination source and a non-opaque object mask. The source is for generating a coherent illumination beam directed along an axis. The object mask is capable of transmitting a portion of the illumination beam as undiffracted reference wavefronts. The object mask has one or more substantially transparent elements for creating overlapping object wavefronts when the illumination beam is incident thereon. The object mask is disposed in the illumination beam. A holographic recording medium is provided in the illumination beam in line optically with the object mask. The object mask is illuminated with the illumination beam, thereby causing the object mask to allow undiffracted reference wavefronts to pass therethrough. The illumination directed along the axis causes the one or more substantially transparent elements to create object wavefronts which interact with the undiffracted reference wavefronts to create an interference pattern.

Abstract translation: 制造全息掩模的方法包括提供照明源和不透明物体掩模的步骤。 光源用于产生沿轴线定向的相干照明光束。 物体掩模能够将照射束的一部分传输为非衍射参考波前。 物体掩模具有一个或多个基本上透明的元件，用于在照射光束入射时产生重叠物体波前。 物体掩模设置在照明光束中。 全息记录介质设置在与目标掩模光学成一直线的照明光束中。 物体掩模用照明光束照射，从而使物体掩模允许未衍射的参考波前通过。 沿着轴引导的照明使得一个或多个基本上透明的元件产生与未衍射的参考波前相互作用以产生干涉图案的物体波前。

公开(公告)号：US06198554B1

公开(公告)日：2001-03-06

申请号：US08741175

申请日：1996-10-29

Applicant: Tomoyuki Kanda ,  Kazutoshi Koie ,  Katsuyoshi Nishii ,  Masahiro Shiozawa ,  Katsumi Kamiya ,  Atsuo Ishizuka

Inventor： Tomoyuki Kanda ,  Kazutoshi Koie ,  Katsuyoshi Nishii ,  Masahiro Shiozawa ,  Katsumi Kamiya ,  Atsuo Ishizuka

IPC: G03H102

CPC classification number: G02B5/32 ,  G03H1/0256 ,  G03H1/04 ,  G03H1/0404 ,  G03H1/0486 ,  G03H1/22 ,  G03H1/265 ,  G03H1/28 ,  G03H2001/2239 ,  G03H2001/306 ,  G03H2223/14 ,  G03H2240/51 ,  G03H2240/53 ,  G03H2250/32 ,  G03H2260/10 ,  H04N7/144

Abstract: A method for producing a hologram recording an interference fringe formed by an object light and a reference light on a photosensitive dry plate, and the object light either having diffusing and scattering characteristics or being passed through an optical diffusion body, mainly includes the following steps: In a first step, a ratio &eegr;RO/&eegr;OO of a first diffraction efficiency &eegr;OO and a second diffraction efficiency &eegr;RO, is calculated. The diffraction efficiency &eegr;OO is dependent on two object light beams. The efficiency &eegr;RO is dependent on the object light and the reference light. In a second step, the intensity EO of the object light and the intensity ER of the reference light is adjusted in such a way that the ratio &eegr;RO/&eegr;OO is set to at least 10 and the efficiency &eegr;OO does not exceed 5%. A display device using the above hologram is structured by a display unit for generating a signal light; a hologram screen formed by either reflection or transmission hologram, and a projecting unit for projecting the signal light to the hologram screen. According to the present invention, it is possible to easily produce a hologram, for example, a screen hologram, having no cloudiness or cloudy state when an observer observes an image displayed on the screen, and to a display device using the above hologram screen.

Abstract translation: 一种用于产生记录由感光干板上的物体光和参考光形成的干涉条纹的全息图的方法以及具有漫射和散射特性或通过光漫射体的目标光主要包括以下步骤： 在第一步骤中，计算第一衍射效率etaOO和第二衍射效率etaRO的比率ηηRO/ eta。 衍射效率etaOO取决于两个物体光束。 效率etaRO取决于物体光和参考光。 在第二步骤中，调整对象光的强度EO和参考光的强度ER，使得etaRO / eta00的比率设定为至少10，效率etaOO不超过5％.A显示 使用上述全息图的装置由用于产生信号光的显示单元构成; 通过反射或透射全息图形成的全息屏幕和用于将信号光投射到全息屏幕的投影单元。根据本发明，可以容易地生成全息图，例如没有浑浊的全息图 或观察者观察屏幕上显示的图像时的混浊状态，以及使用上述全息图的显示装置。

公开(公告)号：US06185019B2

公开(公告)日：2001-02-06

申请号：US09312224

申请日：1999-05-14

Applicant: Douglas S. Hobbs ,  Bruce D. MacLeod ,  Adam F. Kelsey

Inventor： Douglas S. Hobbs ,  Bruce D. MacLeod ,  Adam F. Kelsey

IPC: G03H104

CPC classification number: G03F7/70341 ,  G02B6/02133 ,  G03F7/7035 ,  G03F7/70408 ,  G03H1/00 ,  G03H1/0404

Abstract: A holographic lithography tool (110) for generating a light interference pattern used to expose a photosensitive medium (119) employs a refracting prism (121) in the optical path between divergent illuminating beams (127a, 127b). The prism is optically coupled to the photosensitive medium via an index matching fluid (123). By increasing the incident beam angle and the index of refraction, the prism reduces the size of features recorded in the photosensitive material. The divergent illuminating beams are generated by a beam delivery system which preferably employs easily adjustable fiber optic cables (176, 184). Use of the prism coupling technique facilitates use of fiber-optic-compatible wavelengths in the blue region of the spectrum in a variety of applications, such a distributed feedback grating fabrication.

Abstract translation: 用于产生用于曝光感光介质（119）的光干涉图案的全息光刻工具（110）在发散照明光束（127a，127b）之间的光路中采用折射棱镜（121）。 棱镜通过折射率匹配流体（123）光学耦合到感光介质。 通过增加入射光束角和折射率，棱镜减小了记录在感光材料中的特征的大小。 发散的照明光束由优选使用易于调节的光纤电缆（176,184）的光束传送系统产生。 使用棱镜耦合技术有助于在各种应用（例如分布式反馈光栅制造）中在光谱的蓝色区域中使用光纤兼容波长。

公开(公告)号：US5606435A

公开(公告)日：1997-02-25

申请号：US578007

申请日：1995-12-22

Applicant: Amy S. Kransteuber ,  Don A. Gregory

Inventor： Amy S. Kransteuber ,  Don A. Gregory

IPC: G01D5/353 ,  G03H1/04 ,  G06E3/00 ,  G03H1/16 ,  G02B27/46

CPC classification number: G03H1/0404 ,  G01D5/266 ,  G06E3/003

Abstract: The fiber optic-based correlating and sensing system (the System) utilizes length of optical fiber through which the object beam travels prior to being incident on the holographic plate. First, a matched filter is created on the holographic plate of the initial condition of the environment. Then when the plate is re-placed in its original position in the System and the reference beam is blocked from reaching the plate, a correlation peak appears as the object beam passes through the holographic plate. To use the System as a correlator, the object beam is transmitted through an input scene prior to its travel through the optical fiber. The changes in the input scene from the initial scene causes broadening of the shape of and degradation of intensity of the correlation peak. To use the System as a sensor, the object beam travels through the optical fiber acquiring information regarding the environment surrounding the fiber, such as pressure, temperature, sound, electric and magnetic fields. Again, the changes in the environment are indicated by the broadening shape and decreased intensity level of the correlation peak.

Abstract translation: 基于光纤的相关和感测系统（系统）利用一定长度的光纤，物体光束在入射到全息板之前行进。 首先，在环境的初始状态的全息板上创建匹配滤波器。 然后当板被重新放置在系统中的原始位置并且参考光束被阻挡到达板时，当物体光束通过全息板时出现相关峰值。 为了将系统用作相关器，物体光束在通过光纤行进之前通过输入场景传输。 从初始场景的输入场景的变化引起相关峰的强度形状的变宽和劣化。 为了使用系统作为传感器，物体光束通过光纤获取关于光纤周围的环境的信息，例如压力，温度，声音，电场和磁场。 再次，环境的变化由相关峰值的形状和强度水平的降低来表示。