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Optical waveguide device and near-eye display device

A technology of optical waveguides and devices, applied in the direction of light guides, optical components, instruments, etc., can solve problems such as image information distortion, and achieve the effect of improving image information distortion

Active Publication Date: 2021-06-04
北京至格科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide an optical waveguide device, which can improve the distortion of image information in existing optical waveguide solutions

Method used

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  • Optical waveguide device and near-eye display device
  • Optical waveguide device and near-eye display device
  • Optical waveguide device and near-eye display device

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Embodiment Construction

[0038] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described The embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0039] An embodiment of the present invention provides an optical waveguide device, including a waveguide base and a first optical element, the first optical element is used to diffract the beam propagating in the waveguide base to change the propagation form of at least a part of the beam;

[0040] The first optical element includes peri...

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Abstract

The invention discloses an optical waveguide device. A first optical element diffracts the propagating light beam in the waveguide matrix to change at least a part of the propagating form of the light beam. Wherein, the first optical element includes a unit structure arranged periodically, and the preset parameters of the unit structure change with the position of the unit structure, which can make the propagation step of the large beam change the energy sum of the part of the propagation form at each position within the same range , which is consistent with the sum of the energy of the light beam with a small propagation step in the same range where the propagation form changes at each position, which can improve the existing optical waveguide scheme. The situation where image information is distorted. The invention also discloses a near-eye display device.

Description

technical field [0001] The invention relates to the technical field of optical devices, in particular to an optical waveguide device. The invention also relates to a near-eye display device. Background technique [0002] The near-eye display device is a device used to realize augmented reality display. It is usually worn in the same way as ordinary glasses. Its characteristic is that it can pass through the light emitted by objects in the real world and can also enter the light of virtual images into the human eye. [0003] The imaging system of the near-eye display device includes two parts: an optical-mechanical system and an optical waveguide. The optical-mechanical system is a micro-projector or a screen, which is responsible for converting electrical signals into optical signals and outputting virtual images; the optical waveguide is responsible for converting the output The virtual image light is transmitted to the position in front of the human eye, and the light ent...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B6/00G02B27/01
Inventor 王启蒙赵宇暄冒新宇
Owner 北京至格科技有限公司