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Diopter self-adaptive head-mounted display device

A head-mounted display and adaptive technology, applied in optics, optical components, instruments, etc., can solve the wearer's eye fatigue and affect the visual experience of the device, and achieve the effects of avoiding visual fatigue, protecting eyes, and compact size

Inactive Publication Date: 2016-09-07
BEIJING ANTVR TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the three-dimensional images displayed by the head-mounted display device, because the images have three-dimensional space, the wearer will actively adjust the line of sight direction of the eyes and the focal length of the eye lens in real time for the fast three-dimensional space dynamic picture. Adjusting the part will cause eye fatigue of the wearer and affect the visual experience of the device

Method used

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  • Diopter self-adaptive head-mounted display device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Figure 4 schematically shows an embodiment of the diopter adaptive head-mounted display device according to the present invention: the relative movement of the display screen and the optical lens 401 is set so that the optical lens 401 is fixed, and the display screen is on the optical axis 404 direction, so that the adjusted object distance u2, image distance v3 and focal length f satisfy the first condition 1 / f=1 / u2−1 / v3.

[0048] As shown in Figure 4(a), the current image 402 in the display screen has an object distance u1, the optical lens shown has a focal length f, and the current virtual image 403a presented by the current image 402 through the optical lens 401 and converged 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 prevent the viewer from actively adjusting the line of sight direction of the eyes and the focal length of the eye lens to cause fatigue, the present invention ...

Embodiment 2

[0051] Figure 5 schematically shows an embodiment of the diopter adaptive head-mounted display device according to the present invention: the relative movement of the display screen and the optical lens 501 is also set to fix the optical lens 501, and the display screen is on the optical axis Move in direction 504 so that the adjusted object distance u2, image distance v3 and focal length f satisfy the first condition 1 / f=1 / u2−1 / v3.

[0052] As shown in Figure 5(a), the current image 502 in the display screen has an object distance u1, the optical lens shown has a focal length f, and the current virtual image 503a presented by the current image 502 through the optical lens 501 has an image distance v1. The virtual image 503b of the image at the previous moment has an image distance v2. In order to avoid fatigue caused by the viewer actively adjusting the line of sight direction of the eyes and the focal length of the eye lens, the present invention adjusts the position of the d...

Embodiment 3

[0055] Figure 6 schematically shows an embodiment of the diopter adaptive head-mounted display device according to the present invention: the relative movement of the display screen and the optical lens 601 is also set to the direction of the optical axis 604 between the display screen and the optical lens Both of them move in cooperation with each other, so that the adjusted object distance u2, image distance v3 and focal length f satisfy the first condition 1 / f=1 / u2−1 / v3.

[0056] As shown in Figure 6(a), the current image 602 in the display screen has an object distance u1, the optical lens 601 shown has a focal length f, and the current virtual image 603a presented by the current image 602 through the optical lens 601 has an image distance v1 , the virtual image 603b of the image at the previous moment has an image distance v2. In order to prevent the viewer from actively adjusting the line of sight direction of the eyes and the focal length of the eye lens to cause fatigue...

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Abstract

The invention provides a diopter self-adaptive head-mounted display device including a display facing people's eyes, an optical lens between the display and the people's eyes, and an eyeball tracking module, the display shows a frame by facing the people's eyes, the distance from the display to the center of the optical lens is object distance u, the optical lens is used for focusing the frame of the display to be an image to be clearly seen by the people's eyes, the virtual image of the image and the people's eyes are arranged at the two sides of the display, the distance from the virtual image to the center of the optical lens is image distance v, the optical lens is provided with a focal distance f, the eyeball tracking module is used for detecting the sight direction of the two eyes to position the observation point position of a user, the relative position of the display and the optical lens is adjusted based on the position of the observation point, the display and the optical lens can perform relative movement separately or together along the direction of an optical axis, the distance from the center of the optical lens to the display is adjusted based on the observation point position acquired by the eyeball tracking module to make the adjusted object distance u satisfy the condition of 1 / f=1 / u-1 / v.

Description

technical field [0001] The present invention relates to a head-mounted display device, in particular to a diopter-adaptive head-mounted display device that can adapt to human eyes. Background technique [0002] The display screen of the head-mounted display device is within ten centimeters from the eyeball, and such close images are conventionally invisible to the human eye. For the three-dimensional images displayed by the head-mounted display device, because the images have three-dimensional space, the wearer will actively adjust the line of sight direction of the eyes and the focal length of the eye lens in real time for the fast three-dimensional space dynamic picture. Adjusting the parts will cause eye fatigue of 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, which can prevent the wearer from actively adjusting the line of sight direction...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B27/01
CPCG02B27/01G02B27/0172G02B27/0179G02B2027/0187
Inventor 覃政
Owner BEIJING ANTVR TECH
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