An augmented reality device and wearable device

Abstract

The invention provides an augmented reality device and a wearable device. The augmented reality device comprises an optical engine system for emitting N first light beams and transmitting the N firstlight beams to an optical waveguide system, wherein each first light beam corresponds to a part of field angle, the N parts of field angles corresponding to the N first light beams being spliced to form a field angle of the augmented reality device. N first areas are used for receiving the N first light beams and coupling the N first light beams into an optical waveguide to obtain N first light beams coupled into the optical waveguide, wherein the optical waveguide is used for transmitting the N first light beams coupled into the optical waveguide to N second regions of a pupil expanding grating; the N second regions are used for expanding the N first light beams coupled into the optical waveguide to obtain N expanded first light beams; and the N expanded first light beams are transmittedto N third regions in each group of regions of a decoupling grating through the optical waveguide, wherein the N third regions are used for decoupling the N expanded first light beams to human eyes for imaging. The field angle of the augmented reality device is increased.

Description

technical field [0001] The present application relates to the field of display technology, in particular to an augmented reality device and a wearable device. Background technique [0002] Augmented reality (augmented reality, AR) technology is a technology that calculates the position and angle of an image emitted by a light engine system (also called a projector or light machine) in real time and adds a corresponding image. Augmented reality technology can realize the virtual world on the screen and interact with the real world, that is, the physical information (such as visual information, sound, or touch, etc.) that is difficult to experience in the real world within the time and space range can be passed After the computer simulation is superimposed, the virtual information is applied to the real world. Because augmented reality technology makes it possible to interact between the virtual world and the real world, it has been widely used in augmented reality devices, s...

AI Technical Summary

Problems solved by technology

It can be seen that the size of the transmission angle limits the viewing angle of one of the more critical performance parameters of the augmented reality device

Moreover, the horizontal field of view of the human eye is greater than 120 degrees, and the field of view of the current augmented reality device is far from meeting the field of view of the human eye.

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