WO2017071458A1 - Dispositif de visiocasque à dioptrie auto-adaptative - Google Patents

Dispositif de visiocasque à dioptrie auto-adaptative Download PDF

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Publication number
WO2017071458A1
WO2017071458A1 PCT/CN2016/101554 CN2016101554W WO2017071458A1 WO 2017071458 A1 WO2017071458 A1 WO 2017071458A1 CN 2016101554 W CN2016101554 W CN 2016101554W WO 2017071458 A1 WO2017071458 A1 WO 2017071458A1
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WO
WIPO (PCT)
Prior art keywords
optical lens
display screen
distance
image
diopter
Prior art date
Application number
PCT/CN2016/101554
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English (en)
Chinese (zh)
Inventor
覃政
Original Assignee
北京蚁视科技有限公司
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 北京蚁视科技有限公司 filed Critical 北京蚁视科技有限公司
Publication of WO2017071458A1 publication Critical patent/WO2017071458A1/fr

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    • 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
    • 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
    • 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

Definitions

  • the present invention relates to a head mounted display device, and more particularly to a diopter adaptive head mounted display device that can be adapted to the human eye.
  • the display screen of the head-mounted display device is within ten centimeters of the eyeball, so that the near image is conventionally invisible to the human eye.
  • the wearer actively adjusts the line of sight direction of the eye and the focal length of the eye lens in real time for the fast three-dimensional dynamic picture, due to the long-term eye-to-eye Adjustments made by the department can cause eye strain in the wearer and affect the visual experience of the device.
  • the device invents an adaptive diopter head-mounted display device by adjusting the display screen and the optical lens, thereby preventing the wearer from actively adjusting the line of sight direction of the eye and the focal length of the eye lens. Enhance the user experience.
  • a diopter adaptive head mounted display device includes a display screen facing the human eye, an optical lens between the display screen and the human eye, and an eyeball tracking module: Presenting a picture toward the human eye, the distance from the center of the optical lens is an object distance u; the optical lens is used to focus the picture of the display screen into an image that can be seen by the human eye, the virtual image of the image and the person The eyes are respectively located on two sides of the display screen, the distance between the virtual image and the center of the optical lens is the image distance v, and the optical lens further has a focal length f; the eyeball tracking module is used for real-time detection of binocular line of sight direction for positioning Positioning the user's observation point, adjusting the relative position of the display screen and the optical lens according to the position of the observation point; the display screen and the optical lens are arranged to be independently or collectively movable in the optical axis direction, respectively, and Adjusting a distance between the center of the optical lens and the display according to the position
  • the relative movement of the display screen and the optical lens is set such that the optical lens is fixed, and the display screen moves in the optical axis direction.
  • the relative movement of the display screen and the optical lens is further set to be fixed by the display screen, and the optical lens moves in the optical axis direction.
  • the relative movement of the display screen and the optical lens is further configured to move the display screen and the optical lens in cooperation with each other in the optical axis direction.
  • the optical lens is provided with an ultrasonic motor for controlling the movement of the optical lens in the optical axis direction.
  • the optical lens is arranged as an array optical lens.
  • the display screen is provided with a power driver for controlling the movement of the display screen in the direction of the optical axis.
  • the display screen is configured as an LCD display or an LED display.
  • a method of diopter adaptive head mounted display device comprising a display screen facing the human eye, an optical lens between the display screen and the human eye, and an eyeball tracking module
  • the method comprises the steps of: a) detecting a binocular line of sight position by an eye tracking module; b) calculating a distance of the image point from the center of the optical lens according to a position of the binocular line of sight, ie, an image distance v; c) adjusting according to the image distance v
  • the relative distance between the display screen and the optical lens can be adjusted by the device, instead of the wearer's initiative, the eye line direction and the eye lens focal length are adjusted, which helps to protect. Eyes, avoid visual fatigue; the device is small in size, easy to install, comfortable to wear, and its wide range of passes, suitable for 3D visual experience.
  • Figure 1 (a) is a view schematically showing a state of use of a diopter adaptive head mounted display device according to the present invention
  • Figure 1 (b) is a view schematically showing the main structure of a diopter adaptive head mounted display device according to the present invention
  • FIG. 2 is a view schematically showing the relationship between the relative movement of the display screen and the optical lens of the diopter adaptive head mounted display device and the optical path diagram according to the present invention
  • Fig. 3 is a schematic flow chart showing the operation of a diopter adaptive head mounted display device in accordance with the present invention.
  • FIG. 6(a)-6(b) schematically illustrate an embodiment of a diopter adaptive head mounted display device in accordance with the present invention.
  • FIG. 1(a) is a view showing a state of use of a diopter adaptive head mounted display device according to the present invention; as shown in FIG. 1(a), a viewer wears the head mounted display device 110 to view an ambient image 120.
  • FIG. 1(b) is a view schematically showing the main structure of a diopter adaptive head mounted display device according to the present invention
  • the head mounted display device 110 includes a display screen 103 facing the human eye and is located on the display screen.
  • the display screen 103 is used to present a picture toward the human eye, and the distance from the center of the optical lens is the object distance u;
  • the display screen 103 is provided with a power driver for controlling the movement of the display screen in the direction of the optical axis.
  • the display screen 103 is provided as an LCD display or an LED display.
  • the optical lens 102 is used to focus the image of the display screen 103 into an image that can be seen by the human eye.
  • the virtual image of the image and the human eye are respectively located on both sides of the display screen 103, and the distance between the virtual image and the center of the optical lens is the image distance v, the optical lens.
  • 102 also has a focal length f;
  • the optical lens 102 is provided with an ultrasonic motor for controlling the movement of the optical lens in the optical axis direction.
  • the optical lens is arranged as an array of optical lenses.
  • the eyeball tracking module 101 is configured to detect the direction of the line of sight of the eyes in real time to locate the position of the user's observation point, and adjust the relative position of the display screen 103 and the optical lens 102 according to the position of the observation point;
  • the optical lens 201 has a focal length f, the first image 202a. Having an object distance u1, the second image 202b has an object distance u2, and the first image 202a and the second image 202b are respectively images having different spatial positions in the three-dimensional picture in the display screen; as shown in the optical path diagram in FIG. 2, the first image 202a and the second image 202b are concentrated by the optical lens 201.
  • the virtual images presented in the eye are the first virtual image 203a and the second virtual image 203b, respectively, and the first virtual image 203a and the second virtual image 203b have an image distance v1 and an image distance v2, respectively; Therefore, since the object distance u changes in real time, the image distance v of the virtual image presented in the eye also changes in real time. Since the focal length f of the optical lens 201 is a fixed characteristic, the viewer can actively adjust the line of sight direction of the eye and the focal length of the eye lens according to the object distance u to view the image of the next moment, thus causing fatigue to the human eye.
  • the diopter adaptive head mounted display device of the present invention adjusts the relative distance between the optical lens and the display screen in the direction of the optical axis 204 such that objects having different object distances u are in the eye
  • the diopter adaptive head mounted display device of the present invention there are three ways to adjust the relative distance between the optical lens and the display screen in the direction of the optical axis 204, respectively:
  • a diopter adaptive head mounted display device diopter adaptive head mounted display device, the device including a human eye-oriented display a screen, an optical lens between the display screen and the human eye, and an eyeball tracking module, the method comprising the steps of:
  • Step 301 detecting a binocular line of sight position by an eyeball tracking module
  • Step 302 Calculate the distance between the image point and the center of the optical lens according to the position of the line of sight of the binocular, that is, the image distance v;
  • Step 303 Adjust the distance between the center of the optical lens and the display according to the image distance v, that is, the object distance u;
  • the current image 402 in the display screen has an object distance u1, and the optical lens shown has a focal length f.
  • the current image 402 is concentrated by the optical lens 401 and the current virtual image 403a presented in the eye has an image distance v1.
  • the virtual image 403b of the image at the previous moment has an image distance v2, in order to avoid The viewer avoids actively adjusting the eyesight direction of the eye and the eye lens focal length to generate fatigue.
  • the present invention takes the position of the display screen, that is, adjusts the object distance u1, so that the virtual image 403a of the current image 402 in the display screen 402 also has the same image. From v2.
  • the optical lens 401 is fixed in position to adjust the position of the display screen when the display screen is
  • the image of the virtual image 403b of the previous moment image is equal to v2.
  • the position of the virtual image 403a is the same as the position of the virtual image 403b of the image of the previous moment, so that the viewer does not have to actively adjust the line of sight direction of the eye and the focal length of the eye lens, which can reduce or eliminate eye fatigue.
  • Figure 5 is a schematic illustration of an embodiment of a diopter adaptive head mounted display device in accordance with the present invention: the relative movement of the display screen and optical lens 501 is also set to the optical lens 501 fixed, the display screen being on the optical axis
  • the current image 502 in the display screen has an object distance u1, and the optical lens shown has a focal length f.
  • the current image 502 is concentrated by the optical lens 501.
  • the current virtual image 503a presented in the eye has an image distance v1.
  • the virtual image 503b of the image at the previous moment has an image distance v2.
  • the present invention adopts adjusting the position of the display screen, that is, adjusting the object distance u1, so that the display screen is in the display screen.
  • the virtual image 503a of the current image 502 also has the same image distance v2.
  • the position of the display screen is fixed, and the position of the optical lens 501 is adjusted, when the display screen is
  • the position of the virtual image 503a is the same as the position of the virtual image 503b of the image of the previous moment, so that the viewer does not have to actively adjust the eye.
  • the direction of the line of sight and the focal length of the lens of the eye can reduce or eliminate eye fatigue.
  • the current image 602 in the display screen has an object distance u1
  • the optical lens 601 has a focal length f
  • the current image 602 is concentrated by the optical lens 601.
  • the current virtual image 603a presented in the eye has an image distance v1.
  • the virtual image 603b of the image at the previous moment has an image distance v2.
  • the present invention adopts an adjustment of the relative orientation of the display screen and the optical lens 601 in the direction of the optical axis 604.
  • the position i.e., the adjustment object distance u1
  • the display screen and the optical lens 601 are mutually in the direction of the optical axis 604.
  • the position of the current virtual image 603a presented in the eye is the same as the position of the virtual image 603b of the image of the previous moment, so that the viewer does not have to actively adjust the line of sight direction of the eye and the focal length of the eye lens, which can reduce or eliminate eye fatigue.

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

Abstract

L'invention concerne un dispositif de visiocasque à dioptrie auto-adaptative (110), comprenant un écran d'affichage (103) faisant face à des yeux humains, une lentille optique (102) située entre l'écran d'affichage (103) et les yeux humains, et un module de suivi de globe oculaire (101), l'écran d'affichage (103) étant utilisé pour présenter une image vers les yeux humains, et la distance au centre de la lentille optique (102) étant une distance d'objet u ; la lentille optique (102) est utilisée pour mettre au point l'image de l'écran d'affichage (103) en une image qui peut être clairement visible par les yeux humains, une image virtuelle de l'image et les yeux humains sont respectivement situés sur deux côtés de l'écran d'affichage (103), la distance entre l'image virtuelle et le centre de la lentille optique (102) est une distance image v, et la lentille optique (102) a également une distance focale f ; le module de suivi de globe oculaire (101) est utilisé pour détecter la direction du regard des deux yeux en temps réel pour positionner une position de point de vue d'un utilisateur et pour régler une position relative de l'écran d'affichage (103) par rapport à la lentille optique (102) selon la position de point de vue ; et l'écran d'affichage (103) et la lentille optique (102) sont configurés pour être aptes à se déplacer indépendamment ou conjointement l'un par rapport à l'autre le long d'une direction d'axe optique et pour régler la distance entre le centre de la lentille optique (102) et l'écran d'affichage (103) selon la position de point de vue acquise par le module de suivi de globe oculaire (101), de telle sorte que la distance d'objet réglée u satisfait une condition 1/f = 1/u-1/v.
PCT/CN2016/101554 2015-10-26 2016-10-09 Dispositif de visiocasque à dioptrie auto-adaptative WO2017071458A1 (fr)

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Application Number Priority Date Filing Date Title
CN201510702555.5 2015-10-26
CN201510702555.5A CN105929534A (zh) 2015-10-26 2015-10-26 一种屈光度自适应头戴式显示装置

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CN111487773B (zh) * 2020-05-13 2022-08-19 歌尔科技有限公司 头戴设备调节方法、头戴设备及计算机可读存储介质
CN111629198B (zh) * 2020-06-08 2022-08-09 京东方科技集团股份有限公司 成像系统及其控制方法、控制装置和存储介质
CN112649960B (zh) * 2020-12-08 2021-10-26 复旦大学 一种虚拟现实眼镜屈光度的精准调节方法
CN113359270B (zh) * 2021-05-25 2023-06-09 歌尔股份有限公司 头戴设备的屈光度调节方法及屈光度调节系统
CN114280778A (zh) * 2021-11-24 2022-04-05 歌尔光学科技有限公司 一种智能眼镜及其像距调节方法
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
CN117331232B (zh) * 2023-12-01 2024-04-09 玩出梦想(上海)科技有限公司 一种头戴式设备

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