公开(公告)号：US20180120694A1

公开(公告)日：2018-05-03

申请号：US15565784

申请日：2016-02-01

Applicant: SONY CORPORATION

Inventor： Eri IGARASHI ,  Yuko TAKI ,  Hisaya HARA ,  Daisuke HOBARA

IPC: G03F7/00 ,  G03F7/029 ,  G03F7/035 ,  G03H1/02

CPC classification number: G03F7/001 ,  G03F7/0047 ,  G03F7/029 ,  G03F7/033 ,  G03F7/035 ,  G03F7/038 ,  G03H1/024 ,  G03H1/0248 ,  G03H1/0272 ,  G03H2001/0264 ,  G03H2260/12 ,  G03H2260/33 ,  G11B7/245

Abstract: A hologram recording composition includes at least: a photopolymerizable compound containing at least a first photopolymerizable monomer; binder resin that is inactive to photopolymerization; and a photopolymerization initiator. A change in polarity of the first photopolymerizable monomer by photopolymerization reduces compatibility with the binder resin of the photopolymerizable compound than that before polymerization, the compatibility of the photopolymerizable compound before the polymerization being high.

公开(公告)号：US08728685B2

公开(公告)日：2014-05-20

申请号：US13028807

申请日：2011-02-16

Applicant: Andrew A. Burns ,  Sumeet Jain ,  Pradeep Jeevaji Nadkarni ,  Shantaram Narayan Naik ,  Arunkumar Natarajan ,  Kiran ArunKumar Puthamane ,  Michael T. Takemori ,  Vinodkumar Vasudevan

Inventor： Andrew A. Burns ,  Sumeet Jain ,  Pradeep Jeevaji Nadkarni ,  Shantaram Narayan Naik ,  Arunkumar Natarajan ,  Kiran ArunKumar Puthamane ,  Michael T. Takemori ,  Vinodkumar Vasudevan

IPC: G03H1/04 ,  G03H1/00

CPC classification number: G03H1/22 ,  G03H1/0011 ,  G03H1/0248 ,  G03H1/0256 ,  G03H1/04 ,  G03H2001/0016 ,  G03H2001/0264 ,  G03H2001/0413 ,  G03H2001/0415 ,  G03H2210/22 ,  G03H2222/15 ,  G03H2240/22 ,  G03H2250/33 ,  G03H2250/34 ,  G03H2250/42 ,  G03H2260/30 ,  G03H2260/31 ,  G03H2260/33 ,  G03H2260/52 ,  G03H2270/21 ,  G11B7/24044 ,  G11B7/245 ,  G11B7/246

Abstract: Articles for recording a holographic image are described. The articles include a holographic recording medium having a plurality of surfaces, having a transparent polymeric binder and a photochemically active dye, the holographic recording medium having a holographic image recorded therein formed by exposed areas of the photochemically active dye and unexposed areas of the photochemically active dye; and a first light-blocking layer or material over a first surface of the holographic recording medium from which surface the holographic image is viewed, the light blocking layer or material absorbing light in the wavelength range to which the photochemically active dye is sensitive and allowing transmission of light in a different wavelength range for viewing the holographic image.

Abstract translation: 描述用于记录全息图像的物品。 所述制品包括具有多个表面的全息记录介质，其具有透明聚合物粘合剂和光化学活性染料，所述全息记录介质具有记录在其中的全息图像，所述全息图像由光化学活性染料的曝光区域和光化学活性染料的未曝光区域形成 染料; 以及在所述全息记录介质的第一表面上的第一遮光层或材料，从所述第一表面观察所述全息图像，所述光阻挡层或材料吸收光化学活性染料敏感的波长范围内的光并允许透射 的不同波长范围的光，用于观看全息图像。

公开(公告)号：US20140080040A1

公开(公告)日：2014-03-20

申请号：US13828520

申请日：2013-03-14

Applicant: DREXEL UNIVERSITY

Inventor： Adam K. Fontecchio ,  Kashma Rai

IPC: G03H1/02 ,  G03H1/04

CPC classification number: G03H1/024 ,  G02F1/13342 ,  G03H1/0248 ,  G03H1/04 ,  G03H1/2286 ,  G03H1/28 ,  G03H2001/0439 ,  G03H2001/0491 ,  G03H2001/2263 ,  G03H2260/12 ,  G03H2260/33

Abstract: A hyperspectral holographic polymer dispersed liquid crystal (HPDLC) medium comprising broadband reflective properties may comprise dopants that result in a hyperspectral HPDLC with fast transitional switching speeds. Dopants may include alliform carbon particles, carbon nanoparticles, piezoelectric nanoparticles, multiwalled carbon nanotubes, a high dielectric anisotropy compound, semiconductor nanoparticles, electrically conductive nanoparticles, metallic nanoparticles, or the like. A technique for fabrication of hyperspectral broadband HPDLC mediums may involve dynamic variation of the holography setup during HPDLC formation and spatial multiplexing that may enable broadening of the HPDLC medium's wavelength response. Fabrication may include concurrently running multiple exposures and exploiting superpositioning of the resultant gratings. The hyperspectral HPDLC may be capable of blocking and/or filtering wavelengths in the range of approximately 390 nm to approximately 12 μm.

Abstract translation: 包含宽带反射性质的高光谱全息聚合物分散液晶（HPDLC）介质可以包括导致​​具有快速过渡切换速度的高光谱HPDLC的掺杂剂。 掺杂剂可以包括全形碳颗粒，碳纳米颗粒，压电纳米颗粒，多壁碳纳米管，高介电各向异性化合物，半导体纳米颗粒，导电纳米颗粒，金属纳米颗粒等。 用于制造高光谱宽带HPDLC介质的技术可能涉及在HPDLC形成期间的全息设置的动态变化和空间复用，其可以使得扩展HPDLC介质的波长响应。 制造可以包括同时运行多次曝光并利用所得光栅的叠加。 高光谱HPDLC可能能够阻挡和/或滤除在约390nm至约12μm范围内的波长。

公开(公告)号：US20130250381A1

公开(公告)日：2013-09-26

申请号：US13846920

申请日：2013-03-18

Applicant: STANLEY ELECTRIC CO., LTD.

Inventor： Yasuo Toko ,  Hidefumi Okamoto

IPC: G03H1/00

CPC classification number: G03H1/0005 ,  F21S41/13 ,  F21S41/16 ,  F21S41/285 ,  F21S41/645 ,  F21V9/30 ,  F21V14/003 ,  F21Y2115/10 ,  F21Y2115/30 ,  G02B5/32 ,  G03H1/30 ,  G03H2001/0413 ,  G03H2001/0439 ,  G03H2001/2218 ,  G03H2001/2234 ,  G03H2222/35 ,  G03H2260/33

Abstract: A lighting optical system is electrically (instead of mechanically) controlled in terms of light distribution, while miniaturization of the optical system can be achieved with suppressed production costs. The lighting optical system can include a light source which emits light beams, a holographic liquid crystal element which converts the light beams from the light source to regeneration light beams forming a prescribed light distribution pattern or alternatively which allows the light beams to pass therethrough as they are, in accordance with a voltage applied thereto, a phosphor plate which can be excited by the regeneration light beams from the holographic liquid crystal element and emit visible light beams, and a lens which projects the visible light beams from the phosphor plate.

Abstract translation: 照明光学系统在光分布方面是电的（而不是机械的）控制的，而可以在抑制生产成本的情况下实现光学系统的小型化。 照明光学系统可以包括发射光束的光源，将来自光源的光束转换成形成规定的光分布图案的再生光束的全息液晶元件，或者允许光束通过的全息液晶元件 根据施加到其上的电压，可以由来自全息液晶元件的再生光束激发并发射可见光的荧光体板，以及从磷光体板投射可见光的透镜。

公开(公告)号：US08310746B2

公开(公告)日：2012-11-13

申请号：US12364037

申请日：2009-02-02

Applicant: Sunil Kim ,  Yoonsun Choi

Inventor： Sunil Kim ,  Yoonsun Choi

IPC: G03H1/22

CPC classification number: G02B5/32 ,  G02B27/2278 ,  G03H2001/0439 ,  G03H2001/226 ,  G03H2223/12 ,  G03H2225/31 ,  G03H2260/12 ,  G03H2260/33 ,  H04N13/395

Abstract: The image display device including a lighting unit having a plurality of light source units, a hologram optical unit, which reproduces light to form a plurality of screen images spatially apart from each other when light is incident from the lighting unit, and a display panel, which modulates light reproduced by the hologram optical unit according to image signals.

Abstract translation: 该图像显示装置包括具有多个光源单元的照明单元，全息光学单元，当照明单元入射时，其再现光以形成彼此空间上分开的多个屏幕图像;以及显示面板， 其根据图像信号调制由全息图光学单元再现的光。

公开(公告)号：US07413678B1

公开(公告)日：2008-08-19

申请号：US11395161

申请日：2006-04-03

Applicant: Lalgudi V. Natarajan ,  Richard L. Sutherland ,  Vince P. Tondiglia ,  Timothy J. Bunning

Inventor： Lalgudi V. Natarajan ,  Richard L. Sutherland ,  Vince P. Tondiglia ,  Timothy J. Bunning

IPC: C09K19/52 ,  C09K19/38 ,  G02B5/32 ,  G03H1/04

CPC classification number: G03H1/0005 ,  G02B5/32 ,  G02B6/2713 ,  G02B6/2931 ,  G02B6/29311 ,  G02B6/29314 ,  G02B6/29395 ,  G02F1/13342 ,  G02F2201/305 ,  G03H1/02 ,  G03H1/0248 ,  G03H2001/026 ,  G03H2001/0264 ,  G03H2001/2615 ,  G03H2260/12 ,  G03H2260/33 ,  Y10T428/10

Abstract: A new photopolymerizable material allows single-step, fast recording of volume holograms with properties that can be electrically controlled. Polymer-dispersed liquid crystals (PDLCs) in accordance with the invention preferably comprise a homogeneous mixture of a nematic liquid crystal and a multifunctional pentaacrylate monomer in combination with photoinitiator, coinitiator and cross-linking agent. Optionally, a surfactant such as octanoic acid may also be added. The PDLC material is exposed to coherent light to produce an interference pattern inside the material. Photopolymerization of the new PDLC material produces a hologram of clearly separated liquid crystal domains and cured polymer domains.

Abstract translation: 新的可光聚合材料允许单步快速记录体积全息图，其性质可以被电控制。 根据本发明的聚合物分散液晶（PDLC）优选包含与光引发剂，共引发剂和交联剂组合的向列型液晶和多官能五丙烯酸酯单体的均匀混合物。 任选地，还可以加入表面活性剂如辛酸。 PDLC材料暴露于相干光以在材料内产生干涉图案。 新的PDLC材料的光聚合产生清晰分离的液晶畴和固化聚合物畴的全息图。

公开(公告)号：US20080089073A1

公开(公告)日：2008-04-17

申请号：US11719859

申请日：2005-11-21

Applicant: Rifat Hikmet

Inventor： Rifat Hikmet

IPC: G03H1/18 ,  F21V5/00 ,  G02B5/32 ,  G02F1/03 ,  G03F7/00

CPC classification number: G02B5/1876 ,  C09K19/12 ,  C09K19/2007 ,  C09K19/3068 ,  C09K19/3477 ,  C09K2019/0448 ,  G02B5/32 ,  G02F1/13342 ,  G02F1/292 ,  G03H1/02 ,  G03H1/22 ,  G03H2001/026 ,  G03H2260/12 ,  G03H2260/33

Abstract: A dynamic hologram is formed in anisotropic liquid crystal (LC) gel materials. By applying an electric field, the orientation of part of the liquid crystals can be altered and the hologram can be turned on and off. Using LC gels allows for holographic elements with no diffraction in the voltage off state so that the hologram appears only during application of an electric field. Also, the anisotropic LC gels maintain polarization dependence. The dynamic holograms are suitable in e.g. dynamic holographic optical components whereby an optical function can be included/excluded in a beam path without introducing or removing elements.

Abstract translation: 在各向异性液晶（LC）凝胶材料中形成动态全息图。 通过施加电场，可以改变部分液晶的取向，并且可以打开和关闭全息图。 使用LC凝胶允许在电压关闭状态下没有衍射的全息元件，使得全息图仅在施加电场期间出现。 此外，各向异性LC凝胶保持偏振依赖性。 动态全息图适用于例如 动态全息光学部件，其中可以在光束路径中包括/排除光学功能，而不引入或去除元件。

公开(公告)号：US20060159864A1

公开(公告)日：2006-07-20

申请号：US11340681

申请日：2006-01-27

Applicant: Lalgudi Natarajan ,  Richard Sutherland ,  Vince Tondiglia ,  Timothy Bunning ,  Bob Epling ,  Donna Brandelik

Inventor： Lalgudi Natarajan ,  Richard Sutherland ,  Vince Tondiglia ,  Timothy Bunning ,  Bob Epling ,  Donna Brandelik

IPC: G02F1/1335 ,  G02B5/32 ,  G02B6/42

CPC classification number: G03H1/0005 ,  G02B5/32 ,  G02B6/2713 ,  G02B6/2931 ,  G02B6/29311 ,  G02B6/29314 ,  G02B6/29395 ,  G02F1/13342 ,  G02F2201/305 ,  G03H1/02 ,  G03H1/0248 ,  G03H2001/026 ,  G03H2001/0264 ,  G03H2001/2615 ,  G03H2260/12 ,  G03H2260/33 ,  Y10T428/10

Abstract: A new photopolymerizable material allows single-step, fast recording of volume holograms with properties that can be electrically controlled. Polymer-dispersed liquid crystals (PDLCs) in accordance with the invention preferably comprise a homogeneous mixture of a nematic liquid crystal and a multifunctional pentaacrylate monomer in combination with photoinitiator, coinitiator and cross-linking agent. Optionally, a surfactant such as octancic acid may also be added. The PDLC material is exposed to coherent light to produce an interference pattern inside the material. Photopolymerization of the new PDLC material produces a hologram of clearly separated liquid crystal domains and cured polymer domains. Volume transmission gratings made with the new PDLC material can be electrically switched between nearly 100% diffraction efficiency and nearly 0% diffraction efficiency. By increasing the frequency of the switching voltage, switching voltages in the range of 50 Vrms can be achieved. The optional use of a surfactant allows low switching voltages at lower frequencies than without a surfactant. In an alternative embodiment, a PDLC material in accordance with the invention can be utilized to form reflection gratings, including switchable reflection gratings. In still further embodiments, a PDLC material in accordance with the invention can be used to form switchable subwavelength gratings. By further processing, static transmission, reflection, and subwavelength PDLC materials can be formed. In addition, PDLC materials in accordance with the present invention can be used to form switchable slanted transmission gratings suitable for switchable optical coupling and reconfigurable optical interconnects.

公开(公告)号：US20050099662A1

公开(公告)日：2005-05-12

申请号：US11002116

申请日：2004-12-03

Applicant: Richard Sutherland ,  Bill Hagan ,  William Kelly ,  Bob Epling

Inventor： Richard Sutherland ,  Bill Hagan ,  William Kelly ,  Bob Epling

IPC: C09K19/54 ,  G02F1/1333 ,  G02F1/1334 ,  G02F1/137 ,  G02F1/31 ,  G03H1/02 ,  G02B5/32 ,  G02B6/34

CPC classification number: C09K19/544 ,  G02B5/32 ,  G02F1/1326 ,  G02F1/13342 ,  G02F1/31 ,  G02F2001/13712 ,  G02F2201/346 ,  G02F2203/05 ,  G02F2203/055 ,  G02F2203/585 ,  G03H1/02 ,  G03H2001/026 ,  G03H2001/0264 ,  G03H2001/2231 ,  G03H2001/2234 ,  G03H2260/12 ,  G03H2260/33

Abstract: Transmission and reflection type holograms may be formed utilizing a novel polymer-dispersed liquid crystal (PDLC) material and its unique switching characteristics to form optical elements. Applications for these switchable holograms include communications switches and switchable transmission, and reflection red, green, and blue lenses. The PDLC material of the present invention offers all of the features of holographic photopolymers with the added advantage that the hologram can be switched on and off with the application of an electric field. The material is a mixture of a polymerizable monomer and liquid crystal, along with other ingredients, including a photoinitiator dye. Upon irradiation, the liquid crystal separates as a distinct phase of nanometer-size droplets aligned in periodic channels forming the hologram. The material is called a holographic polymer-dispersed liquid crystal (H-PDLC).

Abstract translation: 透射和反射型全息图可以利用新型聚合物分散液晶（PDLC）材料和其独特的开关特性来形成光学元件。 这些可切换全息图的应用包括通信开关和可切换传输以及反射红色，绿色和蓝色透镜。 本发明的PDLC材料提供了全息光聚合物的全部特征，附加的优点是可以通过施加电场来打开和关闭全息图。 该材料是可聚合单体和液晶的混合物，以及其它成分，包括光引发剂染料。 在照射时，液晶分离为在形成全息图的周期性通道中对齐的纳米尺寸液滴的不同相位。 该材料称为全息聚合物分散液晶（H-PDLC）。

公开(公告)号：US20040008391A1

公开(公告)日：2004-01-15

申请号：US10395824

申请日：2003-03-24

Inventor： Christopher C. Bowley ,  Adam K. Fontecchio ,  Jaujeng Lin ,  Gregory P. Crawford ,  Sadeg M. Faris ,  Le Li

IPC: G03H001/02

CPC classification number: G03H1/28 ,  G02B5/203 ,  G02B5/32 ,  G02F1/13342 ,  G03H1/0236 ,  G03H1/0248 ,  G03H1/04 ,  G03H1/265 ,  G03H2001/2231 ,  G03H2223/12 ,  G03H2223/18 ,  G03H2260/12 ,  G03H2260/33

Abstract: A multicolored reflection liquid crystal display device includes a pair of substrates having a reflective holographic polymer dispersed liquid crystal (H-PDLC) film disposed therebetween. The H-PDLC film contains at least two different reflection gratings capable of reflecting two different wavelengths of light. A multicolored reflection H-PDLC is obtained by simultaneously illuminating a plurality of regions of a film comprised of a mixture of a liquid crystal and a photo-polymerizable monomer with a plurality of holographic light patterns capable of providing liquid crystal layers of different spacings so as to obtain different reflection gratings in each of the regions. A mask is placed between each of the laser light beams and the film to form a pattern of light and dark regions on the film. Each mask is positioned such that at least one light region of a first beam pair coincides with at least one dark region of a second beam pair within the film. A multiple grating liquid crystal display device including an H-PDLC film having a first region comprising liquid crystal and matrix polymer layers forming a transmission grating and a second region comprising liquid crystal and matrix polymer layers forming a reflection grating capable of reflecting a preselected wavelength of light also is described.

Abstract translation: 多彩反射液晶显示装置包括一对基板，其具有设置在其间的反射全息聚合物分散液晶（H-PDLC）膜。 H-PDLC膜包含能够反射两种不同波长的光的至少两种不同的反射光栅。 通过同时用能够提供不同间隔的液晶层的多个全息光图案同时照射由液晶和可光聚合单体的混合物组成的膜的多个区域来获得多色反射H-PDLC，从而 以在每个区域中获得不同的反射光栅。 在每个激光束和膜之间放置掩模以在膜上形成光和暗区域的图案。 每个掩模被定位成使得第一光束对的至少一个光区与膜内的第二光束对的至少一个暗区重合。 一种多光栅液晶显示装置，包括具有包括液晶的第一区域和形成透射光栅的基质聚合物层的H-PDLC膜，以及包含液晶的第二区域和形成能够反射预选波长的反射光栅的基质聚合物层 光也被描述。