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1 WO2020010134A1
OUT-OF-PLANE COMPUTER-GENERATED MULTICOLOR WAVEGUIDE HOLOGRAPHY
Publication/Patent Number: WO2020010134A1 Publication Date: 2020-01-09 Application Number: 2019040388 Filing Date: 2019-07-02 Inventor: Marks, Daniel L.   Smith, David R.   Huang, Zhiqin   Assignee: Duke University   IPC: G02B5/32 Abstract: Various examples of out-of-plane multicolor waveguide holography systems, methods of manufacture, and methods of use are described herein. In some examples, a multicolor waveguide holography system includes a planar waveguide to convey optical radiation between a grating coupler and a metasurface hologram. The grating coupler may be configured to couple out-of-plane optical radiation of three different color incident at three different angles into the planar waveguide. The combined multicolor optical radiation may be conveyed by the waveguide to the metasurface hologram. The metasurface hologram may diffractively decouple the three colors of optical radiation for off-plane propagation to form a multicolor holographic image in free space.
2 CN108279457B
一种可实现新型防伪技术的位移编码型超表面矢量全息元件
Valid
Publication/Patent Number: CN108279457B Publication Date: 2020-09-04 Application Number: 201810106621.6 Filing Date: 2018-02-02 Inventor: 邓子岚   王帅   叶旋   李向平   Assignee: 暨南大学   IPC: G02B5/32 Abstract: 本发明公开了一种可实现新型防伪技术的位移编码型超表面矢量全息元件,包括构成超表面的两个相互垂直的金属纳米棒的超构分子结构;金属‑介质‑金属三明治结构所产生的偏振选择型衍射效率增强效应;超构分子内垂直的两金属纳米棒之间的局部位移对偏振态相位的线性调制方式,相邻超构分子之间的全局位移对波前总体相位的线性调制方式,以及金属纳米棒转角对偏振态振幅比例的线性调制方式。本发明公开的位移编码型超表面矢量全息元件具有制备控制精度要求低、结构简单、宽入射角度宽工作频段、无色散等优点,能够对具有任意形式的相位和偏振态空间分布的波前进行调控,大大增强了全息防伪与加密技术的安全级别。
3 US10578787B2
Hologram generating method and hologram generating apparatus
Publication/Patent Number: US10578787B2 Publication Date: 2020-03-03 Application Number: 15/629,163 Filing Date: 2017-06-21 Inventor: Lee, Jin-sung   Ro, Yongman   Kim, Hak Gu   Min, Jong-sul   Assignee: SAMSUNG ELECTRONICS CO., LTD.   KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY   IPC: G02B5/32 Abstract: A hologram generating apparatus is provided. The apparatus includes a hologram signal generating unit configured to, based on light projected on at least some points corresponding to an object, generate a hologram signal corresponding to the at least some points on at least one two-dimensional plane, a processor configured to calculate a sparsity corresponding to the two-dimensional plane based on the hologram signal, and to calculate a fringe pattern based on at least some of the hologram signal, and a pattern writing unit configured to record the fringe pattern on a computer-generated holography (CGH) plane, wherein the processor is further configured to repeatedly calculate a fringe pattern until a number of dominant signals of the calculated fringe pattern coincides with a predetermined threshold value determined based on the sparsity.
4 CN111247465A
梳状移位式斜交镜
Under Examination
Publication/Patent Number: CN111247465A Publication Date: 2020-06-05 Application Number: 201880064411.3 Filing Date: 2018-09-27 Inventor: A·乌尔讷斯   M·r·艾尔斯   J·菲佛   F·施洛托   K·e·安德森   Assignee: 阿科尼亚全息有限责任公司   IPC: G02B5/32 Abstract: 公开了在光栅介质的不同区域上具有梳状移位全息图组的光学系统。第一组全息图可在光栅介质的第一区域中形成,并且第二组全息图可在光栅介质的第二区域中形成。第一组中的全息图中的每个全息图可具有与第一组光栅频率不同的相应光栅频率。第二组中的全息图中的每个全息图可具有与第二组光栅频率不同的相应光栅频率。第二组光栅频率可位于第一组光栅频率中的光栅频率之间的相邻频率间隙内。梳状移位全息图组可用于执行光瞳均衡、输出耦合、输入耦合、交叉耦合或其他操作。
5 EP3692400A1
COMB-SHIFTED SKEW MIRRORS
Publication/Patent Number: EP3692400A1 Publication Date: 2020-08-12 Application Number: 18793082.1 Filing Date: 2018-09-27 Inventor: Urness, Adam   Ayres, Mark R.   Pfeiffer, Jonathan   Schlottau, Friso   Anderson, Kenneth E.   Assignee: Akonia Holographics, LLC   IPC: G02B5/32
6 CN111965749A
基于点光源照射的多功能超构表面光器件及其设计方法
Public
Publication/Patent Number: CN111965749A Publication Date: 2020-11-20 Application Number: 202010930519.5 Filing Date: 2020-09-07 Inventor: 包燕军   Assignee: 暨南大学   IPC: G02B5/32 Abstract: 本发明公开了一种基于点光源照射的多功能超构表面光器件及其设计方法,所述光器件包括超构表面,所述超构表面旁侧一定垂直距离处设有点光源,所述超构表面包括介质衬底,介质衬底上集成有各向异性的电介质纳米棒阵列,纳米棒为长方体状或椭球状,本发明利用点光源与超构表面的光程差依赖于点光源的波长、偏振及其与超构表面的相对位置的特点,打破传统平面波入射产生的全息图像相互关联的限制,实现多个全息图像独立显示。
7 US2020012031A1
IMAGE DISPLAY DEVICE
Publication/Patent Number: US2020012031A1 Publication Date: 2020-01-09 Application Number: 16/574,949 Filing Date: 2019-09-18 Inventor: Mukawa, Hiroshi   Assignee: Sony Corporation   IPC: F21V8/00 Abstract: An image display device includes an image forming device, collimating optical system, and optical device, with the optical device including a light guide plate, first diffraction grating member and second diffraction grating member which are made up of a volume hologram diffraction grating, and with central light emitted from the pixel of the center of the image forming device and passed through the center of the collimating optical system being input to the light guide plate from the near side of the second diffraction grating member with a certain angle. Thus, the image display device capable of preventing occurrence of color irregularities, despite the simple configuration, can be provided.
8 CN110888194A
一种柔性全息基元膜及其制备方法和应用
Under Examination
Title (English): A Flexible Holographic Primer and Its Preparation Method and Application
Publication/Patent Number: CN110888194A Publication Date: 2020-03-17 Application Number: 201911202617.0 Filing Date: 2019-11-29 Inventor: 王广军   余为伟   Assignee: 荆门市探梦科技有限公司   IPC: G02B5/32 Abstract: 本发明涉及3D显示领域,公开了一种柔性全息基元膜,基元膜整体为柔性可弯曲薄膜结构,由若干单面镀有反射膜的柔性透明薄膜或是若干双面均镀有反射膜的柔性透明薄膜通过透明胶水粘接形成的反射层与透明层相间排列的结构,反射膜形成反射层,用于反射光线,柔性的透明薄膜和/或透明胶水形成透明层,用于透射光线,柔性全息基元膜的水平夹持下垂长度L(cm)与可对折次数n之间满足:n*L>9或L≥5cm,本发明所述制备方法的材料成本以及加工工艺成本都较低,适合大范围推广,同时应用本发明所述的柔性全息基元膜制备的3D显示全息膜,可以做成卷轴式屏幕、曲面屏幕等,灵活度较高,不使用时方便收纳,占用空间较小。
9 US2020292745A1
Holographic Waveguide Backlight and Related Methods of Manufacturing
Publication/Patent Number: US2020292745A1 Publication Date: 2020-09-17 Application Number: 16/817,524 Filing Date: 2020-03-12 Inventor: Waldern, Jonathan David   Popovich, Milan   Grant, Alastair John   Assignee: DigiLens Inc.   IPC: F21V8/00 Abstract: Systems and methods for holographic waveguide backlights in accordance with various embodiments of the invention are illustrated. One embodiment includes an optical illumination device including at least one waveguide, a source of light optically coupled to the at least one waveguide configured to emit light having a first polarization state, a first plurality of grating elements for diffracting the light having the first polarization state out of the at least one waveguide into a first set of output paths, a second plurality of grating elements for diffracting the light having the first polarization state light out of the at least one waveguide into a second set of output paths, and at least one input coupler configured to couple at least a portion of the light having the first polarization state towards the first and second pluralities of grating elements.
10 CN111257990A
一种超表面全息器件、超表面动态全息显示装置和方法
Under Examination
Publication/Patent Number: CN111257990A Publication Date: 2020-06-09 Application Number: 202010184287.3 Filing Date: 2020-03-16 Inventor: 熊伟   高辉   夏金松   王玉西   焦玢璋   范旭浩   邓磊敏   Assignee: 华中科技大学   IPC: G02B5/32 Abstract: 本发明公开了一种超表面全息器件、超表面动态全息显示装置和方法,属于光学全息领域。包括:空间光编码模块用于将激光光束编码为结构光束;超表面全息器件用于根据结构光束开启超表面全息器件的不同空间信道,进行动态全息显示。本发明由多个独立空间信道组合构成静态超表面器件,利用DMD装置产生结构光场选择性开启不同空间信道,帧率和帧数都得到提高。利用空间信道的设计、不同空间信道重构的全息图形不同,将所处相对空间位置考虑进去,最终重构出的图形与开启的信道组合有关,N个信道可以产生2^N种变化。采用DMD对入射光的编码及4F系统对编码光束的缩束,产生照明结构光场,解决了结构光束与超表面器件空间信道严格对应问题。
11 CN109116577B
一种全息隐形眼镜及其应用
Valid
Publication/Patent Number: CN109116577B Publication Date: 2020-10-20 Application Number: 201810852780.0 Filing Date: 2018-07-30 Inventor: 张卓鹏   魏一振   钱伟   Assignee: 杭州光粒科技有限公司   IPC: G02C7/04 Abstract: 本发明公开了一种全息隐形眼镜,包括:透明基底,贴在眼球表面并与眼球曲面相吻合;透射型全息光栅组,贴附在透明基底的外表面,对透过的光线产生一级衍射作用并在人眼汇聚成像;透明防护层,用于封装透明基底和透射型全息光栅。该全息隐形眼镜可应用于虚拟现实,缩小虚拟现实装置的体积,还可应用于增强现实,扩大增强现实装置的视场角,增强显示效果,提高用户体验。本发明还提供了采用该全息隐性眼镜的虚拟现实装置和增强现实装置。
12 CN110832366A
光学构造体以及认证体
Under Examination
Title (English): Optical structures and certification bodies
Publication/Patent Number: CN110832366A Publication Date: 2020-02-21 Application Number: 201880044654.0 Filing Date: 2018-07-26 Inventor: 笼谷彰人   屋铺一寻   Assignee: 凸版印刷株式会社   IPC: G02B5/32 Abstract: 本公开的光学构造体为,在量子化相位差构造层的一个面具有量子化相位差构造的光学构造体,量子化相位差构造为,尺寸恒定的多个量子化凸部与尺寸恒定的多个量子化凹部排列,在多重衍射区域具有量子化凸部沿一个方向排列而成的肋状凸部与量子化凹部相对于上述肋状凸部并行地排列而成的槽状凹部相邻且交替地配置的量子化相位差构造,多重衍射区域对在1个方向上离散且规则地配置的多个再现点进行再现。
13 CN211454222U
透明全息成像膜
Valid
Publication/Patent Number: CN211454222U Publication Date: 2020-09-08 Application Number: 202020261806.7 Filing Date: 2020-03-05 Inventor: 涂祥元   杨大海   Assignee: 国创视讯(广州)科技股份有限公司   IPC: G03B21/60 Abstract: 一种透明全息成像膜,其特征在于,其包括透明基材层、透明微结构、透光区、防眩光层,所述透明微结构均匀间隔的设置于所述透明基材层层上;所述透明微结构设有第一表面和第二表面;在所述第一表面上设有吸光材料涂层,在所述第二表面上设有成像材料涂层;所述透光区填充于所述透明微结构之间,并与所述透明微结构平齐;所述防眩光层,复合于所述透光区与所述透明微结构的表面。本实用新型的透明全息成像膜既可以投影成像,又可以观看后景内容,并且可保证成像画面的对比度和亮度,提高投影画面的显示效果。本实用新型的透明全息成像膜具有加工简单、功能实用、不受尺寸限制的特点,其具有很强的实用性,宜大力推广。
14 CN111819488A
光学装置、图像显示装置和显示设备
Public
Publication/Patent Number: CN111819488A Publication Date: 2020-10-23 Application Number: 201980017470.X Filing Date: 2019-02-15 Inventor: 加濑川亮   Assignee: 索尼公司   IPC: G02B27/02 Abstract: 该光学装置具备第一A偏振部件31、第一B偏振部件32、第一C偏振部件33、第二A偏振部件41、第二B偏振部件42和第二C偏振部件43,其中:从图像形成装置出射的光的一部分进入第一A偏振部件31,并从其通过第一B偏振部件32和第一C偏振部件33向观察者的瞳孔出射,而从图像形成装置出射的光的至少剩余部分进入第二A偏振部件41,并从其通过第二B偏振部件42和第二C偏振部件43向观察者的瞳孔出射;并使通过将由第一A偏振部件31偏振的光的传播方向正投影到光导板而确定的方向与通过将由第二A偏振部件41偏振的光的传播方向正投影到光导板而确定的方向相反。
15 KR102070601B1
IMAGE-FORM VARIABLE TYPE FLOATING HOLOGRAM DISPLAY DEVICE
Publication/Patent Number: KR102070601B1 Publication Date: 2020-01-29 Application Number: 20180146960 Filing Date: 2018-11-26 Inventor: Kim, Jee Hong   Assignee: BLUEWHALE   IPC: G03H1/22 Abstract: 본 발명은 플로팅 홀로그램 디스플레이장치에 관한 것으로, 더욱 상세하게는 영상출력기로부터 투사되어 투영스크린(clear screen)에 비춰지는 영상이 다채로운 형태로 보여질 수 있도록 한 영상형태 가변형 플로팅 홀로그램 디스플레이장치에 관한 것이다. 본 발명에 따르면, 홀로그램영상의 구현공간을 갖는 박스형의 장치바디; 상기 장치바디 내 정해진 위치에 설치된 상태로, 영상을 정의된 방향으로 투사하는 영상출력기; 상기 장치바디 내 정해진 위치에 배치된 상태로, 상기 영상출력기로부터 투사되는 영상을 상기 장치바디 내 정의된 방향으로 굴절시키는 제1반사패널 및 제2반사패널; 상기 장치바디 내 중앙에 견인설치된 상태로, 상기 제2반사패널을 통해 최종 굴절된 영상이 비춰지는 투영스크린; 및, 상기 제2반사패널 및 상기 투영스크린의 설치와 더불어, 상기 투영스크린의 위치·각도·방향조정 및 그에 대응한 상기 제2반사패널의 각도조정으로 상기 투영스크린에 비춰지는 영상의 형태를 다변화하고 이를 기반한 다채로운 홀로그램영상이 구현되도록 한 투영가변수단;을 포함하는 것을 특징으로 한다.
16 CN111158077A
图像显示装置
Under Examination
Publication/Patent Number: CN111158077A Publication Date: 2020-05-15 Application Number: 201911076062.X Filing Date: 2019-11-06 Inventor: 深濑章夫   井出光隆   野口俊幸   Assignee: 精工爱普生株式会社   IPC: G02B5/32 Abstract: 图像显示装置。可得到高对比度、高亮度的图像。图像显示装置具有图像光生成装置、第1光学部、第2光学部、第3光学部以及第4光学部。在第1光学部与第3光学部之间形成第1中间像,在第2光学部与第4光学部之间形成光瞳,在第3光学部与第4光学部之间形成第2中间像,在第4光学部的与第3光学部相反的一侧形成出射光瞳。图像光生成装置具有:第1自发光面板,其射出第1图像光;第2自发光面板,其射出第2图像光;第3自发光面板,其射出第3图像光;以及颜色合成元件,其对第1~第3图像光进行合成。颜色合成元件由具有互相交叉的第1二向色膜和第2二向色膜的十字分色棱镜构成,第1二向色膜和第2二向色膜分别不具有偏振分离特性。
17 CN211293326U
柔性基元膜、柔性全息膜和硬质基元膜、硬质全息膜
Valid
Publication/Patent Number: CN211293326U Publication Date: 2020-08-18 Application Number: 201922105772.2 Filing Date: 2019-11-29 Inventor: 王广军   余为伟   Assignee: 荆门市探梦科技有限公司   IPC: G02B5/32 Abstract: 本实用新型涉及3D显示领域,公开了一种柔性基元膜,整体为柔性可弯曲薄膜结构,由若干相间平行排列的反射层和透明层组成,反射层为具有反射光线功能的反射膜,透明层为透射光线的透明胶水固化层和/或通过透明胶水粘接的透射膜;柔性基元膜的水平夹持下垂长度为L(cm),可对折次数为n,满足:L≥5或者n*L>9。与现有高精度光学玻璃加工相比,一方面柔性基元膜的材料成本较低,另一方面在对其进行加工时,不容易碎,也不会出现光学玻璃加工过程中产生残余应力等问题,大大提高了良品率,适合大范围推广,同时基于柔性基元膜制备的柔性全息膜,可以做成卷轴式屏幕、曲面屏幕等,灵活度较高,不使用时方便收纳,占用空间较小。
18 US10726232B2
Flat panel display having optical sensor
Publication/Patent Number: US10726232B2 Publication Date: 2020-07-28 Application Number: 15/969,360 Filing Date: 2018-05-02 Inventor: Ryu, Seungman   Lee, Guensik   Hyun, Joobong   Yoon, Ara   Assignee: LG Display Co., Ltd.   IPC: G06K9/00 Abstract: The present disclosure relates to a flat panel display having an optical imaging sensor such as a fingerprint image sensor. The present disclosure provides a flat panel display having an image sensor comprising: a display panel including a display area and a non-display area, the display panel having a top surface; a directional optical unit attached to the top surface of the display panel, the directional optical unit having a length along a length axis of the display panel, a width along a width axis of the display panel and a thickness along a thickness axis of the display panel; a sensing light control film disposed under the display panel; and an image sensor disposed under the sensing light control film.
19 US2020264435A1
COMB-SHIFTED SKEW MIRRORS
Publication/Patent Number: US2020264435A1 Publication Date: 2020-08-20 Application Number: 16/646,935 Filing Date: 2018-09-27 Inventor: Urness, Adam   Ayres, Mark R.   Pfeiffer, Jonathan   Schlottau, Friso   Anderson, Kenneth E.   Assignee: Akonia Holographics LLC   IPC: G02B27/01 Abstract: Optical systems having comb-shifted sets of holograms across different regions of a grating medium are disclosed. A first set of holograms may be formed in a first region of the grating medium and a second set of holograms may be formed in a second region of the grating medium. Each of the holograms in the first set may have a different respective grating frequency from a first set of grating frequencies. Each of the holograms in the second set may have a different respective grating frequency from a second set of grating frequencies. The second set of grating frequencies may be located within adjacent frequency gaps between the grating frequencies in the first set of grating frequencies. Comb-shifted sets of holograms may be used to perform pupil equalization, output coupling, input coupling, cross coupling, or other operations.
20 EP3660558A1
OPTICAL STRUCTURE AND AUTHENTICATION BODY
Publication/Patent Number: EP3660558A1 Publication Date: 2020-06-03 Application Number: 18838018.2 Filing Date: 2018-07-26 Inventor: Kagotani, Akihito   Yashiki, Kazuhiro   Assignee: Toppan Printing Co., Ltd.   IPC: G02B5/32 Abstract: There is provided an optical structure having a quantization phase difference structure on one surface of a quantization phase difference structure layer, wherein in the quantization phase difference structure, a plurality of quantization projecting portions in a constant size and a plurality of quantization recessed portions in a constant size are aligned, wherein a multiple diffraction region has the quantization phase difference structure where ribbed projecting portions, in which the quantization projecting portions are aligned in one direction, are arranged adjacent to and alternately with groove-like recessed portions, in which the quantization recessed portions are aligned parallel to the ribbed projecting portions, and wherein the multiple diffraction region is a quantization phase difference structure configured to reproduce a plurality of reproduction points discrete in one direction and arranged regularly.