Waveguide device and AR display equipment

Abstract

The invention discloses a waveguide device which comprises a waveguide unit, a coupling-in grating, a refraction coupling-out element and a refraction lens. The waveguide unit and the refraction coupling-out element are jointly embedded into a refraction lens and are perpendicular to an optical axis of the refraction lens; the refraction lens is a light-transmitting lens with diopter; and deflection directions of different positions on the refraction coupling-out element to projection light in the waveguide unit are different, and the refraction coupling-out element is used for converting theprojection light in the waveguide unit into converged light or diffused light together with the side, close to the human eyes, of the refraction lens so that the projection light is imaged at a presetposition. In the invention, the waveguide unit and the refraction coupling-out element are jointly embedded into the refraction lens, on the basis that diopter adjustment is carried out on a picturein the eyes of a wearer with abnormal input vision in the implementation process, a space size of the AR display device is reduced, and light energy losses are decreased. The invention further provides AR display equipment which has the above beneficial effects.

Description

technical field [0001] The present invention relates to the field of AR display technology, in particular to a waveguide device and an AR display device. Background technique [0002] With the rapid development of AR technology, augmented reality display devices such as AR glasses are widely used in various industries. However, the working principle of traditional AR display devices is designed on the basis that the vision of the human eye is normal, and the projection light received by the human eye is generally parallel light. [0003] However, among the groups that actually use AR display devices, the myopia group accounts for a relatively large proportion, and it is likely to become larger and larger. If a user with myopia wears the AR display device, he needs to wear his own myopia glasses at the same time, which brings inconvenience to the user when using the AR display device and reduces the user experience. Contents of the invention [0004] The purpose of the pr...

AI Technical Summary

Problems solved by technology

[0003] However, among the groups that use AR display devices in reality, the proportion of myopia is relatively large, and it may become larger and larger

If a user with myopia wears the AR display device, he needs to wear his own myopia glasses at the same time, which will bring inconvenience to the user when using the AR display device and reduce the user experience

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