Double-depth imaging method based on polarized light sensitive grating AR glasses waveguide

A technology of AR glasses and imaging methods, applied in the direction of light guides, optics, optical components, etc., can solve the problems of single depth of field display, optic nerve visual system disorder, and limit the large-scale application of products, and achieve the effect of no electronic control devices

Active Publication Date: 2019-08-16
LIGHTIN INC
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Problems solved by technology

[0003] At present, except for a few companies (such as Magic Leap), the vast majority of AR products can only display a single depth of field. As a result, in the scene of fusion of virtual and real, the human eye is

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  • Double-depth imaging method based on polarized light sensitive grating AR glasses waveguide
  • Double-depth imaging method based on polarized light sensitive grating AR glasses waveguide

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Embodiment Construction

[0018] Such as figure 1 As shown, the device involved in the present invention includes: a first waveguide substrate 1, a first couple-in grating 2, that is, a first coupling-in optical fiber, a first half-wave plate 3, and a second waveguide substrate 4 , the second couple-in grating 5, that is, the second coupling-in optical fiber, the first couple-out grating 6, that is, the coupling-out optical fiber, the second half-wave plate 7, and the output grating 8 with optical power. Make the first couple-in grating 2 and the first couple-out grating 6 on the left and right sides of the first waveguide substrate 1; glue the first half-wave plate 3 under the first couple-in grating 2; The second half-wave plate 7 is bonded under a couple-out grating 6; the second waveguide substrate 4 is bonded with the second half-wave plate 3 and the second half-wave plate 7; the second waveguide substrate 4 The second couple-in grating 5 and the output grating 8 with optical power are made respe...

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Abstract

The invention relates to a double-depth imaging method based on polarized light sensitive grating AR glasses waveguide. A first image source emits light, and the light is changed into P light througha polarization device to enter a first coupling grating; after being refracted by the first coupling grating, the light is totally reflected on a first waveguide substrate, and finally the light is introduced into the coupling grating; the light is led out by the coupling grating and then is changed into S light through a second half-wave plate, and the light is emitted through the output gratingwithout influence, so that optical imaging of one depth is formed in a human eye; a second image source emits light, and the light is changed into S light through the polarization device and enters asecond coupling grating; the light does not change when passing through the first coupling grating, and the light is refracted by the second coupling grating and is totally reflected on a second waveguide substrate, and finally the light is guided into the output grating, and the light is guided out by the output grating and then forms optical image of another depth in the human eye. The method has the advantages of simplicity, convenience, stability, high response speed and the like.

Description

technical field [0001] The invention relates to the field of augmented reality technology (AR), in particular to a dual-depth imaging method based on a polarization-sensitive grating AR glasses waveguide. Background technique [0002] AR is a new technology that integrates real world information and virtual world information. It applies visual information, sound, taste, touch, etc. to the real world through computer, sensor and other scientific and technological simulations, and is finally perceived by human senses. To achieve a sensory experience beyond reality. At present, companies such as Google and Microsoft have launched commercialized AR glasses, leading the development and application of AR technology. [0003] At present, except for a few companies (such as Magic Leap), the vast majority of AR products can only display a single depth of field. As a result, in the scene of fusion of virtual and real, the human eye is easy to switch between the physical depth of clos...

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Application Information

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IPC IPC(8): G02B6/124G02B6/126G02B27/01
CPCG02B6/124G02B6/126G02B27/0101G02B27/0172
Inventor 丁毅张卓鹏魏一振陈达如
Owner LIGHTIN INC
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