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Splicing type head-mounted display device

A head-mounted display and splicing technology, which is applied in the field of virtual reality, can solve the problems of limiting the commercialization and generalization of optical splicing head-mounted display devices, increasing system processing costs and assembly costs, and not being able to achieve high resolution, etc., to achieve a compact structure , the effect of small F number and large exit pupil diameter

Inactive Publication Date: 2015-09-23
BEIJING INSTITUTE OF TECHNOLOGYGY
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Problems solved by technology

[0006] Most of the existing optical splicing head-mounted display devices use no more than three optical lenses for each display channel. Although a large field of view is realized, high resolution cannot be achieved because the image quality cannot meet the requirements; many devices use non- Spherical surfaces, diffractive surfaces, free-form surfaces, and off-axis structures, however, will greatly increase the processing and assembly costs of the system, thereby limiting the commercialization and generalization of optical splicing head-mounted display devices

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  • Splicing type head-mounted display device
  • Splicing type head-mounted display device
  • Splicing type head-mounted display device

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Embodiment Construction

[0024] The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0025] The coordinate system of the splicing helmet display device of the present invention is defined as: the global coordinate origin O is located at the exit pupil center (eye pupil), the Z axis is the line of sight direction of the human eye, the Y axis is perpendicular to the Z axis and the direction is directly above the human eye; X The axis is perpendicular to the Y axis and the Z axis, forming a Cartesian coordinate system.

[0026] The splicing helmet display device of the present invention includes a plurality of display channels located in front of the human eyes and symmetrically distributed relative to the direction of the human eye's line of sight; the exit pupil centers of each display channel are located at the center of the human eye pupil, and the overlapping parts of adjacent display channels Combined by cutting and splicing. Multiple ...

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Abstract

The invention discloses a splicing type head-mounted display device, which comprises a plurality of display channels, wherein the display channels are positioned in front of human eyes and distributed relative to gazing directions of the human eyes symmetrically; and an exit pupil center of each display channel is positioned at the eye pupil center of each human eye, and overlapping parts of the adjacent display channels are combined together by adopting a method of splicing after cutting. The splicing type head-mounted display device can be applied to virtual reality and augmented reality, has the advantages of large exit pupil diameter, long exit pupil distance, large field angle, uniform image plane illumination and small F value, is composed of optical components all of which consist of spherical lenses, and adopts the cutting and splicing method, so that the display device is compact in structure, easy to process and convenient adjust.

Description

technical field [0001] The invention relates to the field of virtual reality technology, in particular to a spliced ​​helmet display device based on spherical lens coaxial eyepieces. Background technique [0002] The head-mounted display device for virtual reality and augmented reality has been a popular product in the display field in recent years because it provides a strong sense of immersion, good privacy, and strong mobility for displayed objects. The helmet image display device can be applied to applications such as 3D movies, video games, and sports, as well as high-end applications such as scientific research, medical / business training, flight training, and immersive entertainment. [0003] For a conventional HMD optical system using a single display channel with a single microdisplay for each eye, the field of view and resolution have the following relationship: R=N / FOV; [0004] Among them, R is the resolution of the display system, N is the resolution of a single...

Claims

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Application Information

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IPC IPC(8): G02B27/01G02B27/00
CPCG02B27/0172G02B27/0081G02B2027/0123G02B2027/0127
Inventor 程德文宋维涛王涌天刘越
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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