Unlock instant, AI-driven research and patent intelligence for your innovation.

Diffraction waveguide display method and system

A diffractive wave and optical waveguide technology, which is applied in the field of diffractive waveguide display methods and systems, can solve problems such as low compactness, insufficient efficiency, and complex display systems, and achieve the effects of increasing degrees of freedom, improving system compactness, and simplifying system structure

Active Publication Date: 2018-03-02
BEIJING INSTITUTE OF TECHNOLOGYGY
View PDF9 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention provides a diffraction waveguide display method and system to solve the problems of complex, low compactness and insufficient efficiency of the traditional diffraction waveguide display system in the prior art

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Diffraction waveguide display method and system
  • Diffraction waveguide display method and system
  • Diffraction waveguide display method and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0030] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0031] figure 2 It is a schematic flowchart of a diffraction waveguide display method according to a specific embodiment of the present invention. Such as figure 2 As shown, a diffractive waveguide display method includes: S1, the microdisplay 201 emits a signal light 205 of a virtual image; S2, the signal light 205 directly enters the optical waveguide element 202, and illuminates the optical waveguide element 202 obliquely On the input coupling diffraction element 203 provided on the side wall; S3, the input coupling diffraction element 203 modulates the signal light 205 into parallel light 206, and the parallel light 206 is totally reflected in the optical waveguide...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a diffraction waveguide display method and a system. The method comprises the following steps that S1, a micro-display emits signal light; S2, the signal light is directly emitted into an optical waveguide component and is irradiated on an input coupling diffraction component arranged on an optical waveguide component sidewall in an inclination mode; S3, the input coupling diffraction component modulates the signal light into parallel light, and the parallel light is spread in the optical waveguide component as a total reflection mode and is irradiated on an output coupling diffraction component arranged on the optical waveguide component sidewall; and S4, the output coupling diffraction component receives and modulates the parallel light and output light is emittedvertically to the optical waveguide component. By using the diffraction waveguide display method and the system, the input coupling diffraction component is applied to modulate the signal light into the parallel light, a relay collimation system is removed, the system structure is simplified and system compactness is increased. Besides, the signal light is irradiated on the input coupling diffraction component in the inclination mode, diffraction efficiency is improved, and a degree of freedom of raster position selection is increased.

Description

technical field [0001] The invention relates to the field of optical waveguide display, in particular to a diffraction waveguide display method and system. Background technique [0002] The diffractive waveguide display method combines micro-nano, holographic and other diffraction technologies with waveguide technology. Through the diffraction effect of the diffraction element, the amplitude or phase of the light wave is modulated, and the waveguide is used to propagate the light wave in a directional way, so that the virtual image can be projected and The purpose of overlaying external scene images together. This method effectively solves the problem of off-axis transmission of the optical path, and has the advantages of small volume, light weight and the like. [0003] In the diffractive waveguide display technology, the diffractive element acts as an optical lens. Compared with ordinary glass lenses, the diffractive optical element provides the function of a "thin-film o...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G02B6/00G02B5/10G02B5/32G02B6/10G02B27/42
Inventor 刘娟施学良
Owner BEIJING INSTITUTE OF TECHNOLOGYGY