An augmented reality planar waveguide optical device having multiple layers of microstructures

Abstract

The invention is to solve the problem of providing an augmented reality planar waveguide optical device having multiple layers of microstructures. The technical scheme is characterized in that the optical device comprises an integrated main body. The main body surface is provided with an incident surface, a top surface, a bottom surface, a plurality of microstructure surfaces and a plurality of resin compensation layers. The main body is formed by optical resin; the incident surface is a free-form surface of the main body surface; the top surface is a section of plane of the main body surface;the bottom surface is a plane of the main body surface, and is parallel with the plane where the top surface locates; each microstructure surface is a sunken surface of the main body surface; and theplanes where the microstructure surfaces locate are parallel with the planes where the top surface and the bottom surface locate. Each microstructure surface is formed by a plurality of same microstructure units. Each microstructure unit comprises a first microstructure unit surface and a second microstructure unit surface. The beneficial effects are that the augmented reality planar waveguide optical device is larger in eye movement range, smaller in structure and lighter and more favorable for enhancing mass production of intelligent glasses.

Description

technical field [0001] The invention relates to the field of augmented reality technology, in particular to an augmented reality planar waveguide optical device with a multilayer microstructure. Background technique [0002] Augmented Reality (AR for short) is a technology that calculates the position and angle of camera images in real time and adds corresponding images, videos, and 3D models. The goal of this technology is to put the virtual world on the screen. the real world and interact with it. This technique was proposed in 1990. With the improvement of the CPU computing power of portable electronic products, it is expected that the application of augmented reality will become more and more extensive. [0003] Augmented reality glasses (AR glasses) are an important means of expression of augmented reality technology. There are a variety of optical solutions in the prior art that can realize the display effect of augmented reality to varying degrees. [0004] The op...

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Problems solved by technology

[0005] Our company applied for the patent No. CN201620380830.6 in 2016, which involves this field. However, during the implementation of this patent, there are shortcomings such as small eye movement range and excessive overall optical volume, which have caused serious damage to the layout of the AR glasses. Due to the impact, it is not suitable as an implementation of new AR glasses

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