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Volume holographic optical waveguide display device and augmented reality display equipment

A display device and optical waveguide technology, applied in optics, optical components, instruments, etc., can solve problems such as inability to have both, and achieve the effect of increasing the maximum viewing angle

Inactive Publication Date: 2020-11-17
谷东科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Moreover, when this solution is used in the volume holographic optical waveguide in the AR display field, due to the problems of wavelength selectivity and angle selectivity in the volume holographic optical waveguide, both cannot be achieved at the same time.

Method used

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  • Volume holographic optical waveguide display device and augmented reality display equipment
  • Volume holographic optical waveguide display device and augmented reality display equipment
  • Volume holographic optical waveguide display device and augmented reality display equipment

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Embodiment Construction

[0048] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatuses and methods consistent with aspects of the present disclosure as recited in the appended claims.

[0049] figure 1A schematic diagram of the exposure of the existing volume holographic optical waveguide is shown. Such as figure 1 As shown, light and dark fringes are formed by the interference of two beams of interference light K1 and K2, and the light and dark fringes are exposed to the photosensitive material to form a difference in refractive index, that is, to generate a gratin...

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Abstract

The invention relates to a volume holographic optical waveguide display device and augmented reality display equipment. The volume holographic optical waveguide display device comprises an optical-mechanical system and a waveguide system; the optical-mechanical system is used for emitting collimated light to the waveguide system; the waveguide system comprises a plurality of waveguide substrates,coupling-in gratings and coupling-out gratings, wherein the coupling-in gratings and the coupling-out gratings correspond to the waveguide substrates; the coupling-in gratings are arranged in the coupling-in areas of the waveguide substrates and used for coupling light emitted by the optical-mechanical system into the waveguide substrates; the waveguide substrates are used for transmitting the light coupled into the waveguide substrates to the coupling-out area in a total reflection mode; the coupling-out gratings are arranged in the coupling-out areas of the waveguide substrates and used forcoupling out the light transmitted to the coupling-out areas to human eyes; the coupling-in gratings corresponding to different waveguide substrates are obtained by exposing a photosensitive materialthrough light with different parameters, and the coupling-out gratings corresponding to different waveguide substrates are obtained by exposing the photosensitive material through light with differentparameters.

Description

[0001] The present invention claims the priority of the Chinese patent application CN202010375134.7, and the content described in the specification, drawings and claims of the priority document is incorporated into the specification of the present invention in its entirety and is regarded as a part of the original record of the specification of the present invention. The applicant further declares that the applicant has the right to amend the description and claims of the present invention based on the priority document. technical field [0002] The present disclosure relates to the technical field of augmented reality display, and in particular to a volume holographic optical waveguide display device and an augmented reality display device. Background technique [0003] Augmented reality technology, referred to as AR, is a new technology that "seamlessly" integrates real world information and virtual world information. Technology, after simulation and superposition, applies...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B27/01
CPCG02B27/0172G02B2027/0174
Inventor 崔海涛雍海波李艳钱进
Owner 谷东科技有限公司
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