知搜-全球专利检索

  1. Login
  2. Sign Up

Search Results

224 records (took 0.022 seconds)

    VOLUME HOLOGRAPHIC OPTICAL ELEMENTS WITH EXPANDED ANGULAR ACCEPTANCE
    1.
    发明公开
    VOLUME HOLOGRAPHIC OPTICAL ELEMENTS WITH EXPANDED ANGULAR ACCEPTANCE 审中-公开

    公开(公告)号：US20240345540A1

    公开(公告)日：2024-10-17

    申请号：US18443008

    申请日：2024-02-15

    Applicant: A9.com, Inc.

    Inventor： Arkady Bablumyan

    IPC: G03H1/02 ,  G02B5/32 ,  G03H1/04

    CPC classification number: G03H1/0248 ,  G02B5/32 ,  G03H1/0408

    Abstract: The present invention features VHOEs with expanded acceptance angle ranges as well as various systems and methods for fabricating VHOEs with expanded acceptance angle ranges. The VHOE with expanded acceptance angle range may include two or more individual Bragg gratings. In preferred embodiments, the two or more individual Bragg gratings have the same diffraction geometry but with shifted Bragg conditions. Having the same diffraction geometry means when light is incident on the VHOE including two or more individual Bragg gratings, the diffracted light from each of the Bragg gratings is co-linear or overlapping with the diffracted light from the other Bragg gratings. The Bragg condition for each of the Bragg gratings are shifted with respect to each neighboring Bragg grating by an amount up to the acceptance angle range of each individual Bragg grating.

    Methods for Fabricating Optical Waveguides
    2.
    发明公开
    Methods for Fabricating Optical Waveguides 审中-公开

    公开(公告)号：US20230359146A1

    公开(公告)日：2023-11-09

    申请号：US18311844

    申请日：2023-05-03

    Applicant: DigiLens Inc.

    Inventor： Jonathan David Waldern ,  Milan Momcilo Popovich ,  Alastair John Grant

    IPC: G03H1/20 ,  G03H1/04 ,  G03H1/02 ,  G02B6/00 ,  G02B27/01 ,  G02B27/00

    CPC classification number: G03H1/20 ,  G03H1/0408 ,  G03H1/0248 ,  G02B6/00 ,  G02B27/0172 ,  G02B27/0081 ,  G02B27/0093 ,  G03H2223/16 ,  G03H2260/00

    Abstract: Mastering systems and methods of fabricating waveguides and waveguide devices using such mastering systems are described. Mastering systems for fabricating holographic waveguides can include using a master to control the application of energy (e.g. a laser, light, or magnetic beam) onto a liquid crystal substrate to fabricate a holographic waveguide into the liquid crystal substrate. Mastering systems for fabricating holographic waveguides in accordance with embodiments of the invention can include a variety of features. These features include, but are not limited to: chirp for single input beam copy (near i.e. hybrid contact copy), dual chirped gratings (for input and output), zero order grating for transmittance control, alignment reference gratings, 3:1 construction, position adjustment tooling to enable rapid alignment, optimization of lens and window thickness for multiple RKVs simultaneously, and avoidance of other orders and crossover of the diffraction beam.

    METHODS AND SYSTEMS FOR GENERATING VIRTUAL CONTENT DISPLAY WITH A VIRTUAL OR AUGMENTED REALITY APPARATUS
    7.
    发明申请
    METHODS AND SYSTEMS FOR GENERATING VIRTUAL CONTENT DISPLAY WITH A VIRTUAL OR AUGMENTED REALITY APPARATUS 审中-公开
    用虚拟现实设备生成虚拟内容显示的方法和系统

    公开(公告)号：US20150346490A1

    公开(公告)日：2015-12-03

    申请号：US14726424

    申请日：2015-05-29

    Applicant: MAGIC LEAP, INC.

    Inventor： Robert D. TEKOLSTE ,  Michael KLUG

    IPC: G02B27/01 ,  G02F1/1334 ,  G02B27/22 ,  G02B27/00 ,  G02B5/18

    CPC classification number: G02B27/0101 ,  G02B5/1842 ,  G02B5/1871 ,  G02B27/0081 ,  G02B27/0172 ,  G02B27/225 ,  G02B27/2264 ,  G02B2005/1804 ,  G02B2027/0109 ,  G02B2027/0123 ,  G02B2027/0125 ,  G02B2027/0134 ,  G02F1/1334 ,  G03H1/0408

    Abstract: Several unique configurations for interferometric recording of volumetric phase diffractive elements with relatively high angle diffraction for use in waveguides are disclosed. Separate layer EPE and OPE structures produced by various methods may be integrated in side-by-side or overlaid constructs, and multiple such EPE and OPE structures may be combined or multiplexed to exhibit EPE/OPE functionality in a single, spatially-coincident layer. Multiplexed structures reduce the total number of layers of materials within a stack of eyepiece optics, each of which may be responsible for displaying a given focal depth range of a volumetric image. Volumetric phase type diffractive elements are used to offer properties including spectral bandwidth selectivity that may enable registered multi-color diffracted fields, angular multiplexing capability to facilitate tiling and field-of-view expansion without crosstalk, and all-optical, relatively simple prototyping compared to other diffractive element forms, enabling rapid design iteration.

    Abstract translation: 公开了用于在波导中使用相对高角度衍射的体相相位衍射元件的干涉记录的几种独特配置。 通过各种方法产生的分离层EPE和OPE结构可以整合在并排或重叠的结构中，并且可以将多个这样的EPE和OPE结构组合或复用以在单个空间重合层中展现EPE / OPE功能。 多路复用结构减少了目镜光学器件堆叠内的材料层总数，其中的每一个可能负责显示体积图像的给定焦点深度范围。 体积相位衍射元件用于提供包括光谱带宽选择性的性质，其可以实现注册的多色衍射场，有利于平铺的角度多路复用能力和无串扰的视场扩展以及全光学相对简单的原型相比 其他衍射元件形式，实现快速设计迭代。

    OPTICAL DEVICE AND VIRTUAL IMAGE DISPLAY
    8.
    发明申请
    OPTICAL DEVICE AND VIRTUAL IMAGE DISPLAY 有权
    光学设备和虚拟图像显示

    公开(公告)号：US20130077141A1

    公开(公告)日：2013-03-28

    申请号：US13677588

    申请日：2012-11-15

    Applicant: Sony Corporation

    Inventor： Katsuyuki Akutsu ,  Satoshi Nakano ,  Hiroshi Mukawa

    IPC: G03H1/04

    CPC classification number: G02B27/0172 ,  G02B5/203 ,  G02B5/32 ,  G02B6/00 ,  G02B6/124 ,  G02B27/0081 ,  G02B2027/011 ,  G02B2027/0112 ,  G02B2027/0116 ,  G02B2027/0118 ,  G02B2027/0125 ,  G02B2027/0174 ,  G03H1/04 ,  G03H1/0408

    Abstract: An optical device includes: a light guide plate receiving, for each of N types of wavelength bands, a plurality of parallel light beams with different incident angles each corresponding to view angles, and guiding the received parallel light beams; a first and a second volume hologram gratings of reflection type having a diffraction configuration which includes N types of interference fringes each corresponding to the N types of wavelength bands, and diffracting/reflecting the parallel light beams. The optical device satisfies for each wavelength band, a relationship of ‘P>L’, where ‘L’ represents a central diffraction wavelength in the first and second volume hologram gratings, defined for a parallel light beam corresponding to a central view angle, and ‘P’ represents a peak wavelength of the parallel light beams.

    Abstract translation: 光学装置包括：导光板，对于N种类型的波段中的每一种，接收具有各自对应于视角的不同入射角的多个平行光束，并且引导所接收的平行光束; 具有衍射构造的第一和第二体积全息图光栅，其具有N个各自对应于N种波长带的干涉条纹以及衍射/反射平行光束的衍射构造。 该光学器件满足每个波长带，P> L的关系，其中L表示在对应于中心视角的平行光束中定义的第一和第二体积全息图光栅中的中心衍射波长，P表示峰值 平行光束的波长。

    Two-dimensional surface normal slow-light photonic crystal waveguide optical phased array
    10.
    发明授权
    Two-dimensional surface normal slow-light photonic crystal waveguide optical phased array 有权
    二维表面正光慢光光子晶体光波导相控阵

    公开(公告)号：US08200055B2

    公开(公告)日：2012-06-12

    申请号：US12804263

    申请日：2010-07-19

    Applicant: Harish Subbaraman ,  Ray T Chen

    Inventor： Harish Subbaraman ,  Ray T Chen

    IPC: G02B6/34

    CPC classification number: G02B5/32 ,  B82Y20/00 ,  G02B1/005 ,  G02B6/1225 ,  G02F1/2955 ,  G02F2202/32 ,  G03H1/0408 ,  G03H1/30 ,  G03H2001/0264

    Abstract: Methods and devices for optical beam steering are disclosed including coupling a laser light into an apparatus comprising a first substrate; an array of air core photonic crystal waveguides; columnar members etched around each air core waveguide; a pair of metal electrodes around the columnar members; a trench around the pair of metal electrodes surrounding each air core photonic crystal waveguide; a second substrate coupled to the first substrate comprising electrical interconnection lines; and a holographic fanout array comprising a third substrate; a photopolymer film coated on the third substrate; a hologram written in the photopolymer film configured to couple the laser light into the third substrate; and an array of holograms recorded in the photopolymer film configured to couple a portion of the laser light into the waveguides; and passing a current through the electrodes to induce a refractive index change in the first substrate to control the phase of the portion of the laser light that passes through each waveguide. Other embodiments are described and claimed.

    Abstract translation: 公开了用于光束转向的方法和装置，包括将激光耦合到包括第一基板的装置中; 一系列空心光子晶体波导; 围绕每个空气芯波导蚀刻的柱状构件; 柱状构件周围的一对金属电极; 围绕每个空心光子晶体波导的一对金属电极周围的沟槽; 耦合到包括电互连线的第一衬底的第二衬底; 以及包括第三基板的全息扇出阵列; 涂覆在第三基板上的光聚合物膜; 写入光聚合物膜中的全息图，被配置为将激光耦合到第三基板中; 以及记录在所述光聚合物膜中的全息图阵列，其被配置为将所述激光的一部分耦合到所述波导中; 并且使电流通过电极以在第一衬底中引起折射率变化，以控制通过每个波导的部分激光的相位。 描述和要求保护其他实施例。

Patent Agency Ranking