AU2018240181A1 - Stacked waveguides having different diffraction gratings for combined field of view - Google Patents

Stacked waveguides having different diffraction gratings for combined field of view Download PDF

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Publication number
AU2018240181A1
AU2018240181A1 AU2018240181A AU2018240181A AU2018240181A1 AU 2018240181 A1 AU2018240181 A1 AU 2018240181A1 AU 2018240181 A AU2018240181 A AU 2018240181A AU 2018240181 A AU2018240181 A AU 2018240181A AU 2018240181 A1 AU2018240181 A1 AU 2018240181A1
Authority
AU
Australia
Prior art keywords
light
color
diffraction grating
waveguide
diffract
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
AU2018240181A
Other languages
English (en)
Inventor
Chulwoo Oh
Vik PARTHIBAN
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Magic Leap Inc
Original Assignee
Magic Leap Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Magic Leap Inc filed Critical Magic Leap Inc
Publication of AU2018240181A1 publication Critical patent/AU2018240181A1/en
Abandoned legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/26—Optical coupling means
    • G02B6/34—Optical coupling means utilising prism or grating
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/0093—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 with means for monitoring data relating to the user, e.g. head-tracking, eye-tracking
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays
    • G02B27/017—Head mounted
    • G02B27/0172—Head mounted characterised by optical features
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays
    • G02B27/0189—Sight systems
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/42—Diffraction optics, i.e. systems including a diffractive element being designed for providing a diffractive effect
    • G02B27/4261—Diffraction optics, i.e. systems including a diffractive element being designed for providing a diffractive effect having a diffractive element with major polarization dependent properties
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/18—Diffraction gratings
    • G02B5/1833—Diffraction gratings comprising birefringent materials
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/18—Diffraction gratings
    • G02B5/1842—Gratings for image generation
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
    • G02B6/0015—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/0016—Grooves, prisms, gratings, scattering particles or rough surfaces
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0075—Arrangements of multiple light guides
    • G02B6/0076—Stacked arrangements of multiple light guides of the same or different cross-sectional area
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/26—Optical coupling means
    • G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
    • G02B6/293—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means
    • G02B6/29304—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means operating by diffraction, e.g. grating
    • G02B6/29316—Light guides comprising a diffractive element, e.g. grating in or on the light guide such that diffracted light is confined in the light guide
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1343—Electrodes
    • G02F1/134309—Electrodes characterised by their geometrical arrangement
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/29—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the position or the direction of light beams, i.e. deflection
    • G02F1/292—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the position or the direction of light beams, i.e. deflection by controlled diffraction or phased-array beam steering
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • H04N9/3129—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM] scanning a light beam on the display screen
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2113/00—Combination of light sources
    • F21Y2113/10—Combination of light sources of different colours
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays
    • G02B27/0101—Head-up displays characterised by optical features
    • G02B2027/0123—Head-up displays characterised by optical features comprising devices increasing the field of view
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays
    • G02B27/0101—Head-up displays characterised by optical features
    • G02B2027/0127—Head-up displays characterised by optical features comprising devices increasing the depth of field
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays
    • G02B27/0101—Head-up displays characterised by optical features
    • G02B2027/0132—Head-up displays characterised by optical features comprising binocular systems
    • G02B2027/0134—Head-up displays characterised by optical features comprising binocular systems of stereoscopic type
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays
    • G02B27/0179—Display position adjusting means not related to the information to be displayed
    • G02B2027/0185—Displaying image at variable distance
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays
    • G02B27/0179—Display position adjusting means not related to the information to be displayed
    • G02B2027/0187—Display position adjusting means not related to the information to be displayed slaved to motion of at least a part of the body of the user, e.g. head, eye
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
    • G02F2201/30—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 grating
    • G02F2201/305—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 grating diffraction grating
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F2203/00—Function characteristic
    • G02F2203/22—Function characteristic diffractive

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • General Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Geometry (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Diffracting Gratings Or Hologram Optical Elements (AREA)
  • Optical Integrated Circuits (AREA)
  • Liquid Crystal (AREA)
AU2018240181A 2017-03-21 2018-03-20 Stacked waveguides having different diffraction gratings for combined field of view Abandoned AU2018240181A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201762474529P 2017-03-21 2017-03-21
US62/474,529 2017-03-21
PCT/US2018/023425 WO2018175488A1 (en) 2017-03-21 2018-03-20 Stacked waveguides having different diffraction gratings for combined field of view

Publications (1)

Publication Number Publication Date
AU2018240181A1 true AU2018240181A1 (en) 2019-09-26

Family

ID=63582398

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2018240181A Abandoned AU2018240181A1 (en) 2017-03-21 2018-03-20 Stacked waveguides having different diffraction gratings for combined field of view

Country Status (9)

Country Link
US (4) US11269144B2 (https=)
EP (1) EP3602173B1 (https=)
JP (3) JP2020512578A (https=)
KR (2) KR102699560B1 (https=)
CN (2) CN115576048A (https=)
AU (1) AU2018240181A1 (https=)
CA (1) CA3056771A1 (https=)
IL (2) IL299401A (https=)
WO (1) WO2018175488A1 (https=)

Families Citing this family (130)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11726332B2 (en) 2009-04-27 2023-08-15 Digilens Inc. Diffractive projection apparatus
US9274349B2 (en) 2011-04-07 2016-03-01 Digilens Inc. Laser despeckler based on angular diversity
WO2016020630A2 (en) 2014-08-08 2016-02-11 Milan Momcilo Popovich Waveguide laser illuminator incorporating a despeckler
EP2842003B1 (en) 2012-04-25 2019-02-27 Rockwell Collins, Inc. Holographic wide angle display
US9933684B2 (en) 2012-11-16 2018-04-03 Rockwell Collins, Inc. Transparent waveguide display providing upper and lower fields of view having a specific light output aperture configuration
WO2016042283A1 (en) 2014-09-19 2016-03-24 Milan Momcilo Popovich Method and apparatus for generating input images for holographic waveguide displays
US10437064B2 (en) 2015-01-12 2019-10-08 Digilens Inc. Environmentally isolated waveguide display
US9632226B2 (en) 2015-02-12 2017-04-25 Digilens Inc. Waveguide grating device
NZ773822A (en) 2015-03-16 2022-07-29 Magic Leap Inc Methods and systems for diagnosing and treating health ailments
IL256276B (en) 2015-06-15 2022-09-01 Magic Leap Inc Display system with optical components for coupling multiple light streams
WO2017060665A1 (en) 2015-10-05 2017-04-13 Milan Momcilo Popovich Waveguide display
FR3046850B1 (fr) * 2016-01-15 2018-01-26 Universite De Strasbourg Guide optique ameliore et systeme optique comportant un tel guide optique
JP6895451B2 (ja) 2016-03-24 2021-06-30 ディジレンズ インコーポレイテッド 偏光選択ホログラフィー導波管デバイスを提供するための方法および装置
EP3440497B1 (en) 2016-04-08 2023-08-16 Magic Leap, Inc. Augmented reality systems and methods with variable focus lens elements
IL312713A (en) 2016-11-18 2024-07-01 Magic Leap Inc Waveguide light multiplexer using crossed gratings
KR102533671B1 (ko) 2016-11-18 2023-05-16 매직 립, 인코포레이티드 공간 가변적 액정 회절 격자들
KR102506485B1 (ko) 2016-11-18 2023-03-03 매직 립, 인코포레이티드 넓은 입사 각도 범위들의 광을 방향전환시키기 위한 다중층 액정 회절 격자들
US11067860B2 (en) 2016-11-18 2021-07-20 Magic Leap, Inc. Liquid crystal diffractive devices with nano-scale pattern and methods of manufacturing the same
EP3548939A4 (en) 2016-12-02 2020-11-25 DigiLens Inc. UNIFORM OUTPUT LIGHTING WAVEGUIDE DEVICE
IL304304B2 (en) 2016-12-08 2024-08-01 Magic Leap Inc Diffractive devices based on cholesteric liquid crystal
KR102550742B1 (ko) 2016-12-14 2023-06-30 매직 립, 인코포레이티드 표면 정렬 패턴들의 소프트-임프린트 복제를 이용한 액정들의 패터닝
US10545346B2 (en) 2017-01-05 2020-01-28 Digilens Inc. Wearable heads up displays
AU2018210527B2 (en) 2017-01-23 2022-12-01 Magic Leap, Inc. Eyepiece for virtual, augmented, or mixed reality systems
IL307602A (en) 2017-02-23 2023-12-01 Magic Leap Inc Variable focus virtual imagers based on polarization conversion
CN115576048A (zh) 2017-03-21 2023-01-06 奇跃公司 用于组合视场的具有不同衍射光栅的堆叠波导
IL269317B2 (en) 2017-03-21 2023-11-01 Magic Leap Inc An eye imaging device that uses optical refractive elements
WO2019018851A1 (en) * 2017-07-21 2019-01-24 California Institute Of Technology PLANAR ULTRAMINOUS PHOTOGRAPHIC CAMERA WITHOUT LENS
US11882371B2 (en) 2017-08-11 2024-01-23 California Institute Of Technology Lensless 3-dimensional imaging using directional sensing elements
US11789265B2 (en) 2017-08-18 2023-10-17 A9.Com, Inc. Waveguide image combiners for augmented reality displays
US11668935B2 (en) * 2017-08-18 2023-06-06 A9.Com, Inc. Waveguide image combiners for augmented reality displays
US11698492B2 (en) * 2017-08-18 2023-07-11 A9.Com, Inc. Waveguide image combiners for augmented reality displays
EP3685215B1 (en) 2017-09-21 2024-01-03 Magic Leap, Inc. Augmented reality display with waveguide configured to capture images of eye and/or environment
KR102478497B1 (ko) * 2017-09-22 2022-12-16 삼성디스플레이 주식회사 표시 장치 및 헤드 마운트 표시 장치
CA3084011C (en) 2017-12-15 2024-06-11 Magic Leap, Inc. Eyepieces for augmented reality display system
JP7404243B2 (ja) 2018-01-08 2023-12-25 ディジレンズ インコーポレイテッド 導波管セル内のホログラフィック格子の高スループット記録のためのシステムおよび方法
CN114721242B (zh) 2018-01-08 2025-08-15 迪吉伦斯公司 用于制造光学波导的方法
JP7456929B2 (ja) 2018-01-08 2024-03-27 ディジレンズ インコーポレイテッド 導波管セルを製造するためのシステムおよび方法
KR20250002804A (ko) 2018-01-16 2025-01-07 퍼시픽 라이트 앤드 홀로그램 인크. 전자기 필드 컴퓨팅들을 이용한 3차원 디스플레이들
DE102018211747B4 (de) * 2018-07-13 2021-02-25 Audi Ag Anzeigevorrichtung für ein Kraftfahrzeug, Verfahren zur Erzeugung einer virtuellen Darstellung von optischen Bildinformationen, sowie Kraftfahrzeug
US10725291B2 (en) * 2018-10-15 2020-07-28 Facebook Technologies, Llc Waveguide including volume Bragg gratings
US20200117005A1 (en) * 2018-10-15 2020-04-16 Facebook Technologies, Llc Waveguide for conveying multiple portions of field of view
CN116559993A (zh) * 2018-10-16 2023-08-08 元平台技术有限公司 具有颜色交叉耦合的显示波导组件
US20200116996A1 (en) * 2018-10-16 2020-04-16 Facebook Technologies, Llc Display waveguide assembly with color cross-coupling
US11454809B2 (en) * 2018-10-16 2022-09-27 Meta Platforms Technologies LLC Display waveguide assembly with color cross-coupling
WO2020106824A1 (en) 2018-11-20 2020-05-28 Magic Leap, Inc. Eyepieces for augmented reality display system
JP7153087B2 (ja) * 2018-12-11 2022-10-13 富士フイルム株式会社 導光素子、画像表示装置およびセンシング装置
KR102683759B1 (ko) 2018-12-18 2024-07-10 삼성전자주식회사 영상을 표시하는 장치, 방법 및 컴퓨터 프로그램
CN109445108A (zh) * 2018-12-26 2019-03-08 北京枭龙科技有限公司 一种大视场衍射波导元件及显示装置
WO2020149956A1 (en) 2019-01-14 2020-07-23 Digilens Inc. Holographic waveguide display with light control layer
DE102019102609A1 (de) 2019-02-01 2020-08-06 Carl Zeiss Jena Gmbh Funktionalisierter Wellenleiter für ein Detektorsystem sowie ein Beleuchtungs- und/oder Projektionssystem
DE102019102608A1 (de) 2019-02-01 2020-08-06 Carl Zeiss Jena Gmbh Funktionalisierter Wellenleiter für ein Detektorsystem
DE102019102614A1 (de) 2019-02-01 2020-08-06 Carl Zeiss Jena Gmbh Bildschirm mit einem transparenten Basiskörper
WO2020160188A1 (en) * 2019-02-01 2020-08-06 Magic Leap, Inc. Inline in-coupling optical elements
DE102019102605A1 (de) * 2019-02-01 2020-08-06 Carl Zeiss Jena Gmbh Funktionalisierter Wellenleiter für ein Detektorsystem
DE102019102604A1 (de) 2019-02-01 2020-08-06 Carl Zeiss Jena Gmbh Funktionalisierter Wellenleiter für ein Detektorsystem
US20200247017A1 (en) 2019-02-05 2020-08-06 Digilens Inc. Methods for Compensating for Optical Surface Nonuniformity
EP3924768B1 (en) * 2019-02-13 2026-01-21 Corning Incorporated Waveguide for transmitting light
US20220283377A1 (en) 2019-02-15 2022-09-08 Digilens Inc. Wide Angle Waveguide Display
EP3924759B1 (en) 2019-02-15 2025-07-30 Digilens Inc. Methods and apparatuses for providing a holographic waveguide display using integrated gratings
US10976483B2 (en) 2019-02-26 2021-04-13 Facebook Technologies, Llc Variable-etch-depth gratings
WO2020185832A1 (en) * 2019-03-12 2020-09-17 Magic Leap, Inc. Method of fabricating display device having patterned lithium-based transition metal oxide
EP3980825A4 (en) 2019-06-07 2023-05-03 Digilens Inc. WAVEGUIDES WITH TRANSMITTING AND REFLECTING GRIDS AND RELATED MANUFACTURING PROCESSES
EP3983838A4 (en) * 2019-06-14 2023-10-25 Magic Leap, Inc. OPTICAL EYEPIECE USING SINGLE-SIDED PATTERNING OF ARRAY COUPLER
CN114286962A (zh) 2019-06-20 2022-04-05 奇跃公司 用于增强现实显示系统的目镜
CN118226651A (zh) * 2019-06-24 2024-06-21 奇跃公司 用于增强现实/混合现实应用的定制聚合物/玻璃衍射波导堆叠
JP7161623B2 (ja) * 2019-07-26 2022-10-26 富士フイルム株式会社 バックライトユニットおよび液晶表示装置
DE102019212988A1 (de) 2019-08-29 2021-03-04 Audi Ag Kameravorrichtung zum Erzeugen eines Abbilds einer Umgebung
JP2022546413A (ja) * 2019-08-29 2022-11-04 ディジレンズ インコーポレイテッド 真空回折格子および製造方法
CN114710965A (zh) * 2019-09-19 2022-07-05 交互数字Ce专利控股公司 用于耦合入射光的高视场的光学装置
US11054566B2 (en) * 2019-10-25 2021-07-06 Facebook Technologies, Llc Display waveguide with a high-index layer
RU2721670C1 (ru) * 2019-11-15 2020-05-21 Самсунг Электроникс Ко., Лтд. Система расширения области выходного зрачка визуальной оптической системы
CN114761861B (zh) * 2019-11-26 2023-11-10 富士胶片株式会社 导光元件及图像显示装置
JP2021086073A (ja) * 2019-11-29 2021-06-03 セイコーエプソン株式会社 画像表示装置
US11474395B2 (en) * 2019-12-18 2022-10-18 Meta Platforms Technologies, Llc Birefringent polymer based surface relief grating
CN113009690B (zh) * 2019-12-20 2023-02-17 杭州海康威视数字技术股份有限公司 图像显示方法、近眼显示设备和装置
US11669012B2 (en) * 2020-02-21 2023-06-06 Applied Materials, Inc. Maskless lithography method to fabricate topographic substrate
CN115398283B (zh) * 2020-04-01 2025-06-03 富士胶片株式会社 导光元件
CN115398317B (zh) * 2020-04-03 2026-03-10 富士胶片株式会社 光学元件及图像显示装置
CN111474711B (zh) * 2020-04-09 2021-04-06 谷东科技有限公司 全息波导显示装置和增强现实显示设备
JP7479945B2 (ja) * 2020-06-09 2024-05-09 株式会社小糸製作所 光学素子および画像投影装置
CN111679360A (zh) * 2020-06-22 2020-09-18 北京理工大学 一种大视场光栅波导元件及近眼显示装置
EP4211390A1 (en) * 2020-07-23 2023-07-19 Apple Inc. Optical system having edge-coupled media layers
WO2022046648A1 (en) * 2020-08-24 2022-03-03 Vuzix Corporation Dual input imaging light guide
US11314093B2 (en) * 2020-08-27 2022-04-26 Facebook Technologies, Llc Light guide display assembly for providing expanded field of view
US11762333B2 (en) 2020-09-17 2023-09-19 Pacific Light & Hologram, Inc. Reconstructing objects with display zero order light suppression
US11709422B2 (en) 2020-09-17 2023-07-25 Meta Platforms Technologies, Llc Gray-tone lithography for precise control of grating etch depth
US20220113459A1 (en) * 2020-10-08 2022-04-14 Facebook Technologies, Llc Polarization selective optical element and fabrication method
KR102827800B1 (ko) * 2020-11-05 2025-06-30 주식회사 엘지화학 회절 도광판 디스플레이
KR102827801B1 (ko) * 2020-11-05 2025-06-30 주식회사 엘지화학 회절 도광판 디스플레이
US12326561B2 (en) * 2020-11-09 2025-06-10 Htc Corporation Waveguide device and optical engine
WO2022104776A1 (zh) * 2020-11-23 2022-05-27 瑞仪光电(苏州)有限公司 光学元件、影像波导方法、头戴式显示装置和绕射式波导显示器
WO2022119396A1 (en) 2020-12-04 2022-06-09 Samsung Electronics Co., Ltd. Mid-air image display device and method of operating the same
RU2751405C1 (ru) * 2020-12-04 2021-07-13 Самсунг Электроникс Ко., Лтд. Устройство для отображения "парящего" изображения и способ его работы (варианты)
WO2022150841A1 (en) 2021-01-07 2022-07-14 Digilens Inc. Grating structures for color waveguides
US11650429B2 (en) * 2021-02-24 2023-05-16 Meta Platforms Technologies, Llc Thin liquid crystal stack for polarization conversion
KR20230153459A (ko) 2021-03-05 2023-11-06 디지렌즈 인코포레이티드. 진공 주기적 구조체 및 제조 방법
KR102676604B1 (ko) * 2021-07-04 2024-06-18 루머스 리미티드 시야의 다양한 부분을 제공하는 적층형 도광 요소를 갖는 디스플레이
CN117813544A (zh) * 2021-08-23 2024-04-02 索尼集团公司 图像显示装置和显示装置
EP4381340A4 (en) * 2021-09-22 2024-11-20 Samsung Electronics Co., Ltd. AUGMENTED REALITY DEVICE BASED ON VARIABLE CURVATURE WAVEGUIDE, METHOD FOR OPERATING THE AUGMENTED REALITY DEVICE, AUGMENTED REALITY GLASSES, OPTICAL COMPENSATOR
JP2023050616A (ja) * 2021-09-30 2023-04-11 セイコーエプソン株式会社 虚像表示装置
KR102660339B1 (ko) * 2021-10-22 2024-04-26 인하대학교 산학협력단 핀미러 홀로그래픽 광학 소자 배열을 이용해 확장된 아이박스를 갖는 도파관 형태의 투과형 맥스웰리안 근안 디스플레이
US11962351B2 (en) * 2021-12-01 2024-04-16 X Development Llc Multilayer photonic devices with metastructured layers
US20250053011A1 (en) * 2021-12-23 2025-02-13 Vuzix Corporation Multi-input image light guide system
CN114236819B (zh) * 2021-12-29 2022-09-27 东南大学 一种基于偏振体全息光栅的波导显示二维扩瞳方法
US12461363B1 (en) * 2022-01-20 2025-11-04 Meta Platforms Technologies, Llc Dispersion-compensated optical assembly and system
CN116068768B (zh) * 2022-03-15 2026-03-03 嘉兴驭光光电科技有限公司 衍射光波导以及具有其的显示设备
WO2023215339A1 (en) * 2022-05-06 2023-11-09 Google Llc Waveguide input coupler multiplexing to reduce exit pupil expansion ray footprint
CN119452292A (zh) * 2022-07-18 2025-02-14 谷歌有限责任公司 使用电致变色面的视野区域选择
US12416813B1 (en) 2022-08-16 2025-09-16 Amazon Technologies, Inc. Waveguide combiner with dynamic grating activation
CN117930417A (zh) * 2022-10-14 2024-04-26 Oppo广东移动通信有限公司 光波导组件及增强现实设备
US12529936B1 (en) * 2022-11-22 2026-01-20 Amazon Technologies, Inc. Waveguide combiner with multiple image planes
US12288490B2 (en) 2023-05-12 2025-04-29 Pacific Light & Hologram, Inc. Holographically displaying three-dimensional objects
US12272279B2 (en) 2023-05-12 2025-04-08 Pacific Light & Hologram, Inc. Holographically displaying three-dimensional objects
US12266280B2 (en) 2023-05-12 2025-04-01 Pacific Light & Hologram, Inc. Holographically displaying three-dimensional objects
US12254798B2 (en) 2023-05-12 2025-03-18 Pacific Light & Hologram, Inc. Holographically displaying three-dimensional objects
US12374247B2 (en) 2023-05-12 2025-07-29 Pacific Light & Hologram, Inc. Holographically displaying live scenes including three-dimensional objects
US12293687B2 (en) 2023-05-12 2025-05-06 Pacific Light & Hologram, Inc. Holographically displaying live scenes including three-dimensional objects
US12266279B2 (en) 2023-05-12 2025-04-01 Pacific Light & Hologram, Inc. Holographically displaying three-dimensional objects with optical devices having in-coupling and out-coupling diffractive structures
US12230176B2 (en) 2023-05-12 2025-02-18 Pacific Light & Hologram, Inc. Holographically displaying three-dimensional objects
US12300132B2 (en) 2023-05-12 2025-05-13 Pacific Light & Hologram, Inc. Holographically displaying three-dimensional objects
US12315403B2 (en) 2023-05-12 2025-05-27 Pacific Light & Hologram, Inc. Holographically displaying three-dimensional objects
US11900842B1 (en) 2023-05-12 2024-02-13 Pacific Light & Hologram, Inc. Irregular devices
US12243453B2 (en) 2023-05-12 2025-03-04 Pacific Light & Hologram, Inc. Holographically displaying three-dimensional objects
US12254797B2 (en) 2023-05-12 2025-03-18 Pacific Light & Hologram, Inc. Holographically displaying live scenes including three-dimensional objects
US12236816B2 (en) 2023-05-12 2025-02-25 Pacific Light & Hologram, Inc. Holographically displaying live scenes including three-dimensional objects
US12281984B1 (en) 2023-12-21 2025-04-22 Pacific Light & Hologram, Inc. Optical measurements
IL310351B2 (en) * 2024-01-23 2025-04-01 Lumus Ltd Stacked optical waveguide with matching face angles
CN117950105B (zh) * 2024-02-05 2024-12-03 嘉兴驭光光电科技有限公司 近眼显示波导装置和近眼显示设备
CN118050903B (zh) * 2024-03-18 2024-10-15 江西凤凰光学科技有限公司 一种单光机双目双层显示系统
TWI884089B (zh) * 2024-09-30 2025-05-11 友達光電股份有限公司 具有低折射率與大視野之光學模組及增強實境顯示器

Family Cites Families (94)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US580879A (en) * 1897-04-20 Holdback for vehicles
US4991924A (en) 1989-05-19 1991-02-12 Cornell Research Foundation, Inc. Optical switches using cholesteric or chiral nematic liquid crystals and method of using same
US5082354A (en) 1989-08-29 1992-01-21 Kaiser Aerospace And Electronics Corporation Optical switch and color selection assembly
US6222525B1 (en) 1992-03-05 2001-04-24 Brad A. Armstrong Image controllers with sheet connected sensors
US6219015B1 (en) 1992-04-28 2001-04-17 The Board Of Directors Of The Leland Stanford, Junior University Method and apparatus for using an array of grating light valves to produce multicolor optical images
US5670988A (en) 1995-09-05 1997-09-23 Interlink Electronics, Inc. Trigger operated electronic device
US6188462B1 (en) 1998-09-02 2001-02-13 Kent State University Diffraction grating with electrically controlled periodicity
JP2001133628A (ja) * 1999-08-26 2001-05-18 Nippon Mitsubishi Oil Corp 偏光回折性フィルムの製造方法
US6816290B2 (en) * 2000-07-05 2004-11-09 Sony Corporation Image display element, and image display device
KR100403599B1 (ko) * 2001-11-06 2003-10-30 삼성전자주식회사 조명계 및 이를 채용한 프로젝션 시스템
GB0215153D0 (en) * 2002-07-01 2002-08-07 Univ Hull Luminescent compositions
US6982818B2 (en) 2002-10-10 2006-01-03 Nuonics, Inc. Electronically tunable optical filtering modules
JP2004247947A (ja) 2003-02-13 2004-09-02 Olympus Corp 光学装置
DE602004023641D1 (de) 2003-11-27 2009-11-26 Asahi Glass Co Ltd Optisches element mit einem flüssigkristall mit optischer isotropie
US7385660B2 (en) 2003-12-08 2008-06-10 Sharp Kabushiki Kaisha Liquid crystal display device for transflector having opening in a first electrode for forming a liquid crystal domain and openings at first and second corners of the domain on a second electrode
GB2411735A (en) 2004-03-06 2005-09-07 Sharp Kk Control of liquid crystal alignment in an optical device
US20050232530A1 (en) 2004-04-01 2005-10-20 Jason Kekas Electronically controlled volume phase grating devices, systems and fabrication methods
USD514570S1 (en) 2004-06-24 2006-02-07 Microsoft Corporation Region of a fingerprint scanning device with an illuminated ring
US7206107B2 (en) * 2004-12-13 2007-04-17 Nokia Corporation Method and system for beam expansion in a display device
US8537310B2 (en) 2005-03-01 2013-09-17 North Carolina State University Polarization-independent liquid crystal display devices including multiple polarization grating arrangements and related devices
US7573640B2 (en) 2005-04-04 2009-08-11 Mirage Innovations Ltd. Multi-plane optical apparatus
JP4862298B2 (ja) 2005-06-30 2012-01-25 ソニー株式会社 光学装置及び虚像表示装置
US20080043334A1 (en) 2006-08-18 2008-02-21 Mirage Innovations Ltd. Diffractive optical relay and method for manufacturing the same
US20070081123A1 (en) 2005-10-07 2007-04-12 Lewis Scott W Digital eyewear
US11428937B2 (en) 2005-10-07 2022-08-30 Percept Technologies Enhanced optical and perceptual digital eyewear
US8696113B2 (en) 2005-10-07 2014-04-15 Percept Technologies Inc. Enhanced optical and perceptual digital eyewear
CN101222009A (zh) * 2007-01-12 2008-07-16 清华大学 发光二极管
EP2137558B1 (en) 2007-04-16 2011-10-19 North Carolina State University Low-twist chiral liquid crystal polarization gratings and related fabrication methods
JP4518193B2 (ja) * 2008-06-10 2010-08-04 ソニー株式会社 光学装置および虚像表示装置
KR101542251B1 (ko) 2008-10-09 2015-08-05 노쓰 캐롤라이나 스테이트 유니버시티 복수의 편광 격자 배열을 포함하는 편광 독립적인 액정 디스플레이 장치 및 그와 관련된 장치
JP2010181473A (ja) * 2009-02-03 2010-08-19 Toppan Printing Co Ltd 位相型回折素子、その製造方法、および撮像装置
US11320571B2 (en) * 2012-11-16 2022-05-03 Rockwell Collins, Inc. Transparent waveguide display providing upper and lower fields of view with uniform light extraction
US8233204B1 (en) * 2009-09-30 2012-07-31 Rockwell Collins, Inc. Optical displays
JP5059079B2 (ja) 2009-10-21 2012-10-24 キヤノン株式会社 積層型回折光学素子および光学系
US9304319B2 (en) 2010-11-18 2016-04-05 Microsoft Technology Licensing, Llc Automatic focus improvement for augmented reality displays
US10156722B2 (en) 2010-12-24 2018-12-18 Magic Leap, Inc. Methods and systems for displaying stereoscopy with a freeform optical system with addressable focus for virtual and augmented reality
NZ706893A (en) 2010-12-24 2017-02-24 Magic Leap Inc An ergonomic head mounted display device and optical system
US9046729B2 (en) 2011-03-24 2015-06-02 The Hong Kong University Of Science And Technology Cholesteric liquid crystal structure
CA3035118C (en) 2011-05-06 2022-01-04 Magic Leap, Inc. Massive simultaneous remote digital presence world
GB201114149D0 (en) 2011-08-17 2011-10-05 Bae Systems Plc Projection display
EP2760363A4 (en) 2011-09-29 2015-06-24 Magic Leap Inc TACTILE GLOVE FOR HUMAN COMPUTER INTERACTION
RU2017115669A (ru) 2011-10-28 2019-01-28 Мэджик Лип, Инк. Система и способ для дополненной и виртуальной реальности
US9575366B2 (en) * 2011-12-29 2017-02-21 The Hong Kong University Of Science And Technology Fast switchable and high diffraction efficiency grating ferroelectric liquid crystal cell
BR112014024941A2 (pt) 2012-04-05 2017-09-19 Magic Leap Inc dispositivo de imagem de campo de visão amplo com capacidade de focalização ativa
US8989535B2 (en) 2012-06-04 2015-03-24 Microsoft Technology Licensing, Llc Multiple waveguide imaging structure
US9671566B2 (en) 2012-06-11 2017-06-06 Magic Leap, Inc. Planar waveguide apparatus with diffraction element(s) and system employing same
US8911080B2 (en) * 2012-08-27 2014-12-16 Johnson & Johnson Vision Care, Inc. Usage compliance indicator for contact lenses
WO2014037036A1 (en) 2012-09-05 2014-03-13 Seereal Technologies S.A. Controllable diffraction device for a light modulator device
JP2015534108A (ja) 2012-09-11 2015-11-26 マジック リープ， インコーポレイテッド 人間工学的な頭部搭載型ディスプレイデバイスおよび光学システム
WO2014043142A1 (en) 2012-09-11 2014-03-20 Augmented Vision, Inc. Compact eye imaging and eye tracking apparatus
US9933684B2 (en) * 2012-11-16 2018-04-03 Rockwell Collins, Inc. Transparent waveguide display providing upper and lower fields of view having a specific light output aperture configuration
US10192358B2 (en) * 2012-12-20 2019-01-29 Microsoft Technology Licensing, Llc Auto-stereoscopic augmented reality display
IL301489B2 (en) 2013-01-15 2024-08-01 Magic Leap Inc A system for scanning electromagnetic imaging radiation
KR102067759B1 (ko) * 2013-02-15 2020-01-17 삼성전자주식회사 파이버 스캐닝 프로젝터
KR20230044041A (ko) 2013-03-11 2023-03-31 매직 립, 인코포레이티드 증강 및 가상 현실을 위한 시스템 및 방법
CN105229719B (zh) 2013-03-15 2018-04-27 奇跃公司 显示系统和方法
US9874749B2 (en) 2013-11-27 2018-01-23 Magic Leap, Inc. Virtual and augmented reality systems and methods
US10262462B2 (en) 2014-04-18 2019-04-16 Magic Leap, Inc. Systems and methods for augmented and virtual reality
US9664905B2 (en) * 2013-06-28 2017-05-30 Microsoft Technology Licensing, Llc Display efficiency optimization by color filtering
US10533850B2 (en) 2013-07-12 2020-01-14 Magic Leap, Inc. Method and system for inserting recognized object data into a virtual world
JP6171740B2 (ja) * 2013-09-02 2017-08-02 セイコーエプソン株式会社 光学デバイス及び画像表示装置
EP3058418B1 (en) 2013-10-16 2023-10-04 Magic Leap, Inc. Virtual or augmented reality headsets having adjustable interpupillary distance
KR102651578B1 (ko) 2013-11-27 2024-03-25 매직 립, 인코포레이티드 가상 및 증강 현실 시스템들 및 방법들
US9857591B2 (en) 2014-05-30 2018-01-02 Magic Leap, Inc. Methods and system for creating focal planes in virtual and augmented reality
JP6322975B2 (ja) 2013-11-29 2018-05-16 セイコーエプソン株式会社 光学デバイスおよび電子機器
EP2887128B1 (en) 2013-12-18 2021-10-27 Microsoft Technology Licensing, LLC NED polarization system for wavelength pass-through
KR102162994B1 (ko) * 2013-12-18 2020-10-07 마이크로소프트 코포레이션 근안 디스플레이를 위한 파장 통과 제어용 편광 시스템 및 방법
JP6234208B2 (ja) 2013-12-18 2017-11-22 マイクロソフト テクノロジー ライセンシング，エルエルシー 波長通過のためのｎｅｄ偏光システム
NZ722903A (en) 2014-01-31 2020-05-29 Magic Leap Inc Multi-focal display system and method
KR102177133B1 (ko) 2014-01-31 2020-11-10 매직 립, 인코포레이티드 멀티-포컬 디스플레이 시스템 및 방법
US10203762B2 (en) 2014-03-11 2019-02-12 Magic Leap, Inc. Methods and systems for creating virtual and augmented reality
EP3140779A4 (en) 2014-05-09 2017-11-29 Google LLC Systems and methods for using eye signals with secure mobile communications
USD759657S1 (en) 2014-05-19 2016-06-21 Microsoft Corporation Connector with illumination region
NZ764905A (en) 2014-05-30 2022-05-27 Magic Leap Inc Methods and systems for generating virtual content display with a virtual or augmented reality apparatus
USD752529S1 (en) 2014-06-09 2016-03-29 Comcast Cable Communications, Llc Electronic housing with illuminated region
JP6726110B2 (ja) 2014-07-31 2020-07-22 イマジンオプティクス・コーポレイション 光学素子、及び回折光学素子
CN104656259B (zh) * 2015-02-05 2017-04-05 上海理湃光晶技术有限公司 共轭窄带三基色交错的体全息光栅波导近眼光学显示器件
EP3062142B1 (en) 2015-02-26 2018-10-03 Nokia Technologies OY Apparatus for a near-eye display
NZ773822A (en) 2015-03-16 2022-07-29 Magic Leap Inc Methods and systems for diagnosing and treating health ailments
USD758367S1 (en) 2015-05-14 2016-06-07 Magic Leap, Inc. Virtual reality headset
US10564336B2 (en) 2015-06-04 2020-02-18 Osaka University Reflective structure, device, and method for producing reflective structure
IL256276B (en) * 2015-06-15 2022-09-01 Magic Leap Inc Display system with optical components for coupling multiple light streams
DE102015122055B4 (de) * 2015-12-17 2018-08-30 Carl Zeiss Ag Optisches System sowie Verfahren zum Übertragen eines Quellbildes
USD805734S1 (en) 2016-03-04 2017-12-26 Nike, Inc. Shirt
USD794288S1 (en) 2016-03-11 2017-08-15 Nike, Inc. Shoe with illuminable sole light sequence
US20170373459A1 (en) * 2016-06-27 2017-12-28 University Of Central Florida Research Foundation, Inc. Volume polarization grating, methods of making, and applications
US10551622B2 (en) 2016-10-26 2020-02-04 Microsoft Technology Licensing, Llc Field of view tiling in waveguide-based near-eye displays
KR102533671B1 (ko) 2016-11-18 2023-05-16 매직 립, 인코포레이티드 공간 가변적 액정 회절 격자들
IL304304B2 (en) 2016-12-08 2024-08-01 Magic Leap Inc Diffractive devices based on cholesteric liquid crystal
KR102550742B1 (ko) 2016-12-14 2023-06-30 매직 립, 인코포레이티드 표면 정렬 패턴들의 소프트-임프린트 복제를 이용한 액정들의 패터닝
WO2018140502A1 (en) 2017-01-27 2018-08-02 Magic Leap, Inc. Antireflection coatings for metasurfaces
IL307602A (en) 2017-02-23 2023-12-01 Magic Leap Inc Variable focus virtual imagers based on polarization conversion
IL269317B2 (en) 2017-03-21 2023-11-01 Magic Leap Inc An eye imaging device that uses optical refractive elements
CN115576048A (zh) 2017-03-21 2023-01-06 奇跃公司 用于组合视场的具有不同衍射光栅的堆叠波导

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