WO2020042635A1 - Dispositif d'affichage optique proche de l'œil muni d'une pupille de sortie bidimensionnelle et de guides d'ondes d'expansion - Google Patents

Dispositif d'affichage optique proche de l'œil muni d'une pupille de sortie bidimensionnelle et de guides d'ondes d'expansion Download PDF

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Publication number
WO2020042635A1
WO2020042635A1 PCT/CN2019/083925 CN2019083925W WO2020042635A1 WO 2020042635 A1 WO2020042635 A1 WO 2020042635A1 CN 2019083925 W CN2019083925 W CN 2019083925W WO 2020042635 A1 WO2020042635 A1 WO 2020042635A1
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WO
WIPO (PCT)
Prior art keywords
waveguide device
vertical
waveguide
horizontal
exit pupil
Prior art date
Application number
PCT/CN2019/083925
Other languages
English (en)
Chinese (zh)
Inventor
宋强
彭雅珮
苏鹏华
马国斌
许恒深
Original Assignee
深圳珑璟光电技术有限公司
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Application filed by 深圳珑璟光电技术有限公司 filed Critical 深圳珑璟光电技术有限公司
Publication of WO2020042635A1 publication Critical patent/WO2020042635A1/fr

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Classifications

    • 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
    • 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
    • G02B2027/011—Head-up displays characterised by optical features comprising device for correcting geometrical aberrations, distortion
    • 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

Definitions

  • the present invention relates to the field of optical display technology, and particularly to a two-dimensional exit pupil expanding waveguide near-eye optical display device.
  • Head-mounted displays refer to sending optical signals to the eyes through various head-mounted displays, which can implement Virtual Reality (VR), Augmented Reality (AR), and Hybrid Different effects such as mixed reality (MR) are widely used in virtual reality systems to enhance the visual immersion of users.
  • VR Virtual Reality
  • AR Augmented Reality
  • MR mixed reality
  • a head-mounted display for augmented reality allows people to project a virtual image to the human eye while viewing the surrounding environment, and the projected virtual image can be superimposed on the real world perceived by the user.
  • Entertainment, medical, transportation and other fields are of great significance.
  • Transmissive head-mounted displays currently used for augmented reality will inevitably lead to an increase in the volume of the optical display device if the field of view is to be enlarged, and the existing head-mounted displays usually use off-axis aspherical surfaces to constitute a refracting reflection.
  • the system realizes large viewing angle viewing, such a system generally generates large vertical axis aberrations, field curvature, and distortion, deforms the virtual picture, and affects the user experience.
  • the object of the present invention is to provide a two-dimensional exit pupil expanding waveguide near-eye optical display device, which can reduce the volume of the device while expanding the field of view angle, and overcome the shortcomings of vertical axis aberration, field curvature and distortion. .
  • a two-dimensional exit pupil expanding waveguide near-eye optical display device includes: a micro display screen, an eyepiece group, a vertically expanding waveguide device, and a horizontally expanding waveguide device;
  • the micro display screen is disposed on a focal plane of the eyepiece group, and the vertical extension waveguide device is disposed on Said eyepiece group is on an outgoing light path, said eyepiece group is used to collimate the light beams emitted by said micro display screen into parallel light beams and exit; said horizontal waveguide device is disposed on the outgoing light path of said vertical waveguide device;
  • the vertical expansion waveguide device and the horizontal expansion waveguide device are both trapezoidal prisms formed by sequentially bonding at least two parallelogram prisms and at least one trapezoidal prism in order, and a horizontal coupling incident surface of the horizontal waveguide device Parallel to the upper and lower bottom surfaces of the vertical waveguide device, the horizontal coupling incident surface is at an angle of 45 ° with the plane of the base of the horizontal waveguide device;
  • the vertical extension waveguide device is used for vertical beams emitted by the eyepiece group in a vertical direction
  • the equivalent size increase is performed in the direction to obtain a vertically expanded beam and exit;
  • the horizontal waveguide device is configured to increase the equivalent size of the vertically expanded beam emitted by the vertically expanded waveguide device in the horizontal direction to obtain a two-dimensional expansion.
  • the light beam exits the pupil of the human eye.
  • the micro display screen is an organic light emitting diode, a silicon-based liquid crystal screen, or a micro display chip with a light emitting function.
  • the eyepiece group is composed of a single lens or multiple lenses, and the lens material is optical glass or optical plastic, and the distortion of the full field of view is less than 1%.
  • the vertical coupling incident surface of the vertical waveguide device is made of optical glass, optical plastic, or relief grating.
  • the slopes of the vertical expansion waveguide device and the horizontal expansion waveguide device are slopes of parallelogram prisms, and metal wire grids coated with dielectric film layers of different reflectivities, and the slope reflectance is 1% -50%, which is used to split the received light into two rays, one is a parallel ray that reflects and propagates in accordance with the law of reflection, and one is a parallel ray that carries energy increase or decrease.
  • a slope distance between adjacent slopes of a plurality of slopes of the vertically expanding waveguide device is set to 1 to 8 mm.
  • a gap between two mutually parallel planes of the horizontal expansion waveguide device and the vertical expansion waveguide device is set to 0-10 mm.
  • the overall thickness of the horizontally extending waveguide device is 2 mm.
  • the present invention provides a two-dimensional exit pupil expanding waveguide near-eye optical display device.
  • a virtual image is emitted from a microdisplay, and is coupled to a vertically expanding waveguide device after passing through an eyepiece system.
  • the pseudo-image light is coupled into the horizontally extending waveguide device, and finally the virtual image light is reflected and output from the bevels of the four parallel prisms of the horizontally expanding waveguide device.
  • the virtual image light finally enters the human eye to realize virtual display, and the virtual display screen is real-time and real-world scene Overlapping together and existing in the same space at the same time, the user can not only view the information of the virtual screen, but also the information of various scenes in the real world, and achieve a large field of view and a large exit pupil while reducing the scope of the pupil.
  • the volume of the device solves the contradiction between the large field of view and the volume of the device in the prior art, and overcomes the shortcomings of vertical axis aberration, field curvature and distortion, and improves the sharpness of the screen display.
  • FIG. 1 is a schematic structural diagram of a two-dimensional exit pupil expanding waveguide near-eye optical display device according to the present invention
  • FIG. 2 is a front view of a two-dimensional exit pupil expanding waveguide near-eye optical display device according to the present invention
  • FIG 3 is a top view of a two-dimensional exit pupil expanding waveguide near-eye optical display device according to the present invention.
  • micro display screen 1 eyepiece group 2
  • vertical expansion waveguide device 3 and horizontal expansion waveguide device 4
  • human eye pupil incident light 6
  • vertical coupling incidence surface 301 horizontal coupling incidence Surface 401
  • vertically-extending waveguide sloping surface 302 horizontally-extending waveguide sloping surface 402
  • An object of the present invention is to provide a two-dimensional exit pupil expanding waveguide near-eye optical display device, which can expand the visual field.
  • the field angle reduces the volume of the device at the same time, and overcomes the shortcomings of vertical aberration, field curvature and distortion.
  • FIG. 1 is a schematic structural diagram of a two-dimensional exit pupil expanding waveguide near-eye optical display device of the present invention
  • FIG. 2 is a front view of the two-dimensional exit pupil expanding waveguide near-eye optical display device of the present invention
  • FIG. 3 is a two-dimensional exit pupil of the present invention
  • a two-dimensional exit pupil expansion waveguide near-eye optical display device includes: a micro display screen 1, an eyepiece group 2, a vertical expansion waveguide device 3, and a horizontal expansion waveguide device 4;
  • the micro display screen 1 is disposed on a focal plane of the eyepiece group 2, and the vertical expansion waveguide device 3 is disposed on
  • the light path of the eyepiece group 2 is used to collimate the light beams emitted by the micro display screen 1 into parallel light beams and emit them;
  • the horizontal waveguide device 4 is disposed on the vertical waveguide The exit light path of the device 3;
  • the vertical extension waveguide device 3 and the horizontal extension waveguide device 4 are both trapezoidal prisms formed by sequentially bonding at least two parallelogram prisms and at least one trapezoidal prism in order, and the horizontal coupling of the horizontal waveguide device
  • the incident surface 401 is parallel to the upper and lower bottom surfaces of the vertical waveguide device 3, and the horizontal coupling incident surface 401 is at an angle of 45 ° with the base plane of the horizontal waveguide device.
  • the vertically extended waveguide device 3 is used to combine the eyepiece group.
  • the parallel beams emitted by 2 are increased in an equivalent size in the vertical direction to obtain a vertically expanded beam and emitted; the horizontal waveguide device 4 is configured to perform the vertically expanded beams emitted by the vertically expanded waveguide device 3 in a horizontal direction, etc.
  • the effect size is increased, and a two-dimensional expanded beam is obtained and emitted to the eye pupil 5 of the human eye.
  • the micro display screen 1 is an organic light emitting diode, a silicon-based liquid crystal screen, or a micro display chip with a light emitting function.
  • the eyepiece group 2 is composed of a single lens or multiple lenses, and the lens material is optical glass or optical plastic, and the distortion of the entire field of view is less than 1%.
  • the vertical coupling incident surface 301 is a polished plane of optical glass or optical plastic
  • the vertically coupled incident surface 301 is a relief grating
  • nl refers to the refractive index of the incident medium
  • n2 indicates the refractive index of the incident medium
  • I is the angle of incidence, which is the angle between the incident light and the normal of the incident surface
  • 0 the angle of exit, which indicates the angle of the light and the normal of the incident surface
  • d is the corresponding grating constant
  • m is the diffraction order
  • k is the corresponding Light wavelength
  • the inclined surface 402 of the vertical expansion waveguide device 3 and the horizontally extended waveguide device is an inclined surface of a parallelogram prism, and a metal wire grid plated with a dielectric film layer having different reflectances.
  • the reflectivity of the inclined surface 402 is 1%- 50%
  • it is 10% -30%, which is used to split the received light into two rays, one is a parallel ray that reflects and propagates according to the law of reflection, and one is a parallel ray that carries energy increase or decrease.
  • the slope distance between adjacent slopes of the multiple slopes of the vertical expansion waveguide device 3 is set to 1-8 mm, preferably 3-5 mm.
  • a gap between two mutually parallel planes of the horizontally extending waveguide device 4 and the vertically extending waveguide device 3 is set to 0-10 mm, and preferably 0.5 mm.
  • the overall thickness of the horizontally extending waveguide device 4 is 2 mm.
  • the micro display screen emits light 6, collimated into parallel light 601 through the eyepiece group 2;
  • the parallel light 601 irradiates the inclined surface 302 of the vertically expanding waveguide device 3.
  • the light follows the law of refraction and is transmitted inside the waveguide substrate, and the equivalent size of the light beam increases in the vertical direction;
  • the light continues to propagate to the inclined surface 402 of the horizontally expanding waveguide device 4.
  • the light follows the law of refracting reflection and is transmitted inside the waveguide substrate.
  • the equivalent size of the light beam increases in the horizontal direction, thereby entering the human eye.
  • the included angle (acute angle) a of the large plane of the horizontal coupling incident surface 401 and the substrate of the horizontally expanding waveguide device 4 is between 30 and 80 °.
  • the included angle a Preferably, we set the included angle a to 45 °, then the angle of incidence of the 0 field of view light (ie, the parallel light 106) in the large plane of the substrate is 45 °, which satisfies the principle of total reflection, and the parallel light 106 propagates through the reflection of the horizontally extending waveguide 4 substrate.
  • the exit pupil size after the two-dimensional exit pupil expansion by the vertical expansion waveguide 3 and the horizontal expansion waveguide 4 is 24 * 16 mm °

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)

Abstract

L'invention porte sur un dispositif d'affichage optique proche de l'œil muni d'une pupille de sortie bidimensionnelle et de guides d'ondes d'expansion. Le dispositif comprend : un micro-écran d'affichage (1), un ensemble lentille oculaire (2), un dispositif guide d'ondes d'expansion verticale (3) et un dispositif guide d'ondes d'expansion horizontale (4). Le micro-écran d'affichage (1) et le dispositif guide d'ondes d'expansion verticale (3) sont respectivement disposés sur un plan focal et un trajet optique émergent de l'ensemble lentille oculaire (2). L'ensemble lentille oculaire (2) est utilisé pour collimater un faisceau lumineux (6) émis par le micro-écran d'affichage (1) dans un faisceau lumineux collimaté (601). Le dispositif guide d'ondes d'expansion horizontale (4) est disposé sur un trajet optique émergent du dispositif guide d'ondes d'expansion verticale (3). Une surface incidente de couplage horizontale (401) est parallèle à une surface arrière verticale du dispositif guide d'ondes d'expansion verticale (3). Le dispositif guide d'ondes d'expansion verticale (3) est utilisé pour agrandir uniformément les dimensions verticales du faisceau lumineux collimaté (601) qui émerge de l'ensemble lentille oculaire (2). Le dispositif guide d'ondes d'expansion horizontale (4) est utilisé pour agrandir uniformément les dimensions horizontales du faisceau lumineux à expansion verticale pour obtenir un faisceau lumineux à expansion bidimensionnelle (602) et émettre celui-ci dans la pupille de l'œil d'un utilisateur. Tout en fournissant un champ de vision étendu et un volume réduit, le présent dispositif d'affichage surmonte les défauts de l'aberration de l'axe vertical, de la courbure de champ et de la distorsion.
PCT/CN2019/083925 2018-08-29 2019-04-23 Dispositif d'affichage optique proche de l'œil muni d'une pupille de sortie bidimensionnelle et de guides d'ondes d'expansion WO2020042635A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201810993880.5A CN108983425A (zh) 2018-08-29 2018-08-29 一种二维出瞳扩展波导近眼光学显示装置
CN201810993880.5 2018-08-29

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024096924A1 (fr) * 2022-11-04 2024-05-10 Google Llc Expansion de pupille bidimensionnelle dans une structure de guide de lumière unique

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108983425A (zh) * 2018-08-29 2018-12-11 深圳珑璟光电技术有限公司 一种二维出瞳扩展波导近眼光学显示装置
CN109581664A (zh) * 2018-12-28 2019-04-05 北京灵犀微光科技有限公司 光学装置和增强现实显示装置
CN110146983B (zh) * 2018-12-29 2024-01-09 深圳珑璟光电科技有限公司 一种头戴显示装置
CN110146981A (zh) * 2018-12-29 2019-08-20 深圳珑璟光电技术有限公司 一种增强现实眼镜
CN109581669B (zh) * 2019-01-23 2021-07-13 歌尔股份有限公司 投影光路及头戴显示设备
CN110058410B (zh) * 2019-03-20 2020-12-15 华为技术有限公司 波导组件和近眼显示设备
CN111025661A (zh) * 2020-01-10 2020-04-17 深圳珑璟光电技术有限公司 一种光纤耦合波导近眼显示光学装置
CN111766707A (zh) * 2020-07-21 2020-10-13 谷东科技有限公司 二维扩瞳的波导显示装置和增强现实显示装置
CN114114519A (zh) 2020-08-28 2022-03-01 中强光电股份有限公司 波导的制作方法以及具有波导的头戴式显示装置
CN112462523A (zh) * 2020-12-08 2021-03-09 谷东科技有限公司 一种增强现实近眼显示波导装置
CN112904566A (zh) * 2021-03-22 2021-06-04 深圳珑璟光电科技有限公司 照明光学系统及光学显示设备
CN115509006A (zh) * 2021-06-23 2022-12-23 华为技术有限公司 光学设备及电子设备
CN114167601B (zh) * 2021-11-10 2022-11-18 北京灵犀微光科技有限公司 一种三次扩瞳装置
CN114236852B (zh) * 2022-01-20 2022-12-09 上海理湃光晶技术有限公司 一种光学显示装置
CN115166987B (zh) * 2022-06-30 2024-07-02 北京灵犀微光科技有限公司 实物全息复现装置和方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5076664A (en) * 1989-05-23 1991-12-31 Thomson-Csf Optical device enabling the introduction of a collimated image in an observer's field of vision
WO2006013565A1 (fr) * 2004-08-05 2006-02-09 Lumus Ltd. Dispositif optique pour couplage lumineux
CN104216120A (zh) * 2014-08-29 2014-12-17 中国科学院长春光学精密机械与物理研究所 半透膜阵列平板波导式头戴显示器光学系统
CN205982819U (zh) * 2016-04-29 2017-02-22 上海渺视光学科技有限公司 一种近眼显示波导阵列视频眼镜
CN108983425A (zh) * 2018-08-29 2018-12-11 深圳珑璟光电技术有限公司 一种二维出瞳扩展波导近眼光学显示装置
CN208569194U (zh) * 2018-08-29 2019-03-01 深圳珑璟光电技术有限公司 一种二维出瞳扩展波导近眼光学显示装置

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE60124961T2 (de) * 2001-09-25 2007-07-26 Cambridge Flat Projection Displays Ltd., Fenstanton Flachtafel-Projektionsanzeige
WO2007029034A1 (fr) * 2005-09-07 2007-03-15 Bae Systems Plc Affichage par projection avec un guide d'onde transversal rectangulaire en forme de tige et un guide d'onde en forme de plaque, chacun ayant un réseau de diffraction
US8194325B2 (en) * 2009-06-30 2012-06-05 Nokia Corporation Optical apparatus and method
JP5918758B2 (ja) * 2010-07-06 2016-05-18 シーリアル テクノロジーズ ソシエテ アノニムＳｅｅｒｅａｌ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｓ．Ａ． ホログラフィックディスプレイ又は立体ディスプレイのための、ビームの発散及び種々のコリメータ
US8736963B2 (en) * 2012-03-21 2014-05-27 Microsoft Corporation Two-dimensional exit-pupil expansion
CN103513422B (zh) * 2013-09-27 2017-02-01 上海理工大学 透视显示器件
WO2015114675A1 (fr) * 2014-01-28 2015-08-06 オリンパス株式会社 Dispositif d'affichage monté sur la tête et prisme guide-lumière
FR3020880B1 (fr) * 2014-05-09 2016-05-27 Thales Sa Visuel de tete comportant un melangeur optique a expansion de pupille pilotable
GB2529003B (en) * 2014-08-03 2020-08-26 Wave Optics Ltd Optical device
CN104536088B (zh) * 2015-01-24 2018-05-08 上海理湃光晶技术有限公司 齿形镶嵌平面波导光学器件
CN105116547B (zh) * 2015-09-24 2018-07-06 联想(北京)有限公司 一种头戴式显示装置
US10088620B2 (en) * 2015-09-29 2018-10-02 Ricoh Company, Ltd. Light guide, virtual image optical system, and virtual image display device
EP3420396B1 (fr) * 2016-06-20 2022-07-20 Akonia Holographics, LLC Guide d'ondes avec un réseau holographique de volume de type réflexion
CN107561699A (zh) * 2016-07-01 2018-01-09 成都理想境界科技有限公司 一种近眼显示系统、虚拟现实设备和增强现实设备
US10466479B2 (en) * 2016-10-07 2019-11-05 Coretronic Corporation Head-mounted display apparatus and optical system
TW201825932A (zh) * 2016-10-13 2018-07-16 美商亞克尼亞全像攝影有限責任公司 光瞳等化
CN108333749A (zh) * 2017-01-19 2018-07-27 中强光电股份有限公司 光学系统以及头戴式显示装置
CN106597672B (zh) * 2017-02-16 2020-06-16 上海鲲游光电科技有限公司 一种基于波导的增强现实显示装置
CN107703632A (zh) * 2017-10-23 2018-02-16 南京理湃光电技术有限公司 棱镜耦合的光折叠波导显示器件
CN107942430A (zh) * 2017-11-21 2018-04-20 上海理湃光晶技术有限公司 一种复合光学穿戴显示波导器件
CN108227072B (zh) * 2017-12-15 2019-08-27 北京理工大学 一种扩大出瞳紧凑型纳米结构波导显示方法及系统
CN108415162A (zh) * 2018-01-18 2018-08-17 北京灵犀微光科技有限公司 近眼显示设备

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5076664A (en) * 1989-05-23 1991-12-31 Thomson-Csf Optical device enabling the introduction of a collimated image in an observer's field of vision
WO2006013565A1 (fr) * 2004-08-05 2006-02-09 Lumus Ltd. Dispositif optique pour couplage lumineux
CN104216120A (zh) * 2014-08-29 2014-12-17 中国科学院长春光学精密机械与物理研究所 半透膜阵列平板波导式头戴显示器光学系统
CN205982819U (zh) * 2016-04-29 2017-02-22 上海渺视光学科技有限公司 一种近眼显示波导阵列视频眼镜
CN108983425A (zh) * 2018-08-29 2018-12-11 深圳珑璟光电技术有限公司 一种二维出瞳扩展波导近眼光学显示装置
CN208569194U (zh) * 2018-08-29 2019-03-01 深圳珑璟光电技术有限公司 一种二维出瞳扩展波导近眼光学显示装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024096924A1 (fr) * 2022-11-04 2024-05-10 Google Llc Expansion de pupille bidimensionnelle dans une structure de guide de lumière unique

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