Compact augmented reality near-to-eye device

An augmented reality, compact technology, applied in optical components, optics, instruments, etc., can solve problems such as crosstalk of similar color lights, achieve the effect of improving bright and dark fringes, increasing dynamic range, and realizing pupil expansion

Pending Publication Date: 2021-03-16
谷东科技有限公司
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Problems solved by technology

[0004] The purpose of the present invention is to provide a compact augmented reality near-eye device to improve the light efficiency when the display device uses a composite grating to transmit color images, realize pupil expansion, ensure the continuity and integrity of the final image, and improve the brightness and darkness of the displayed image Stripes, solve the problem of serious crosstalk of similar color lights

Method used

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Embodiment Construction

[0022] 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.

[0023] It should be understood that the step numbers used herein are only for convenience of description, and are not intended to limit the execution order of the steps.

[0024] It should be understood that the terminology used in the description of the present invention is for the purpose of describing particular embodiments only and is not intended to limit the present invention. As used in this specification and the appended claims, the singular forms "a", "an"...

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Abstract

The invention discloses a compact augmented reality near-to-eye device, and relates to the technical field of augmented reality display. The compact augmented reality near-to-eye device comprises an LCoS module, an optical-mechanical system and a volume holographic planar waveguide group, wherein an incident plane of the optical-mechanical system is parallel to an emergent plane of the LCoS module, and the optical-mechanical system is used for receiving light emitted by the LCoS module; an emergent surface of the optical-mechanical system is adjacent to the upper surface of the volume holographic slab waveguide group, and the optical-mechanical system is used for converting the LED light source into polarized light and then emitting the polarized light to the volume holographic slab waveguide group; and the volume holographic planar waveguide group is used for diffracting and transmitting the polarized light and coupling out imaging. According to the compact augmented reality near-to-eye device, the light efficiency can be improved, pupil expansion is realized, the continuity and integrity of a final image are ensured, the bright and dark stripes of a display image are improved, and the problem of serious crosstalk of similar colored light is solved.

Description

technical field [0001] The invention relates to the technical field of augmented reality display, in particular to a compact augmented reality near-eye device. Background technique [0002] Augmented reality technology aims to superimpose the virtual image generated by the computer on the real environment in real time, so that the human eye can observe the scene of fusion of virtual and real, so as to realize the enhancement of the real environment information. Therefore, the primary problem in the near-eye display device based on augmented reality technology is how to reduce the volume and weight of the display device, and provide sufficient information and field of view to realize near-eye three-dimensional display with high spatial resolution and high angular resolution. rendering effect. [0003] However, microdisplays in near-eye display devices generally require high-power, high-brightness lighting units at this stage, which is not conducive to system integration and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B27/01G02B27/28
CPCG02B27/0172G02B27/286G02B2027/0174
Inventor 李艳崔海涛雍海波钱进毛鹏轩
Owner 谷东科技有限公司
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