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A near-eye display system and a head-mounted display device

A near-eye display and optical system technology, applied in optical components, instruments, optics, etc., can solve the problem of small field of view, and achieve the effect of three-dimensional effect

Active Publication Date: 2019-02-22
CHENGDU IDEALSEE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Both near-eye display technologies have the problem of small field of view. The field of view of the former is about 14°, and the field of view of the latter is about 30°, which cannot meet the needs of current consumer products.

Method used

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  • A near-eye display system and a head-mounted display device
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  • A near-eye display system and a head-mounted display device

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Embodiment Construction

[0038] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0039] Holographic technology is a kind of virtual imaging technology, which uses the principles of interference and diffraction to record and reproduce the real three-dimensional image of an object.

[0040] Computational holography is based on mathematical calculation and modern optics. It uses computer codes to make holograms. It can fully record the amplitude and phase of light waves, with low noise and high repeatability. It can record holograms of any object, ...

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PUM

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Abstract

The invention discloses a near-to-eye display system, which comprises a light source system, a light guide system and an image display system, wherein the image display system is used for displaying a hologram; the light source system is used for inputting a lighting beam to the light guide system; and the light guide system is used for carrying out transmission and expansion on the lighting beam and then enabling the beam to irradiate on the hologram displayed by the image display system to activate the hologram in a transmission mode. Correspondingly, the invention also discloses a head-mounted display device. The waveguide light guide technology and the computational holography technology are integrated fully, and thus, the near-to-eye display system is light and delicate, and large-view field display and depth adjustment through computational holography can be realized.

Description

technical field [0001] The present invention relates to the field of near-eye display, in particular to a near-eye display system and a head-mounted display device. Background technique [0002] With the advancement of technology, augmented reality smart glasses have gradually appeared in the public eye, such as Google's Google Glass and Microsoft's Hololens. Google Glass projects the image on the LCOS microdisplay through a projection optical system, passes through a prism and mirror, and reflects the projected image to the user's eyes through a beam splitter built into the prism. Hololens couples the image on the LCOS or DLP microdisplay into the waveguide through the holographic grating, transmits it through the waveguide, and finally couples it out through the corresponding holographic grating right in front of the human eye, and projects it into the human eye. Both near-eye display technologies have the problem of small field of view. The field of view of the former is...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B27/01
CPCG02B27/0103G02B27/0172G02B2027/0123G02B2027/0174
Inventor 周旭东黄琴华
Owner CHENGDU IDEALSEE TECH
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