Large-field light freeform surface waveguide-type visual optical imaging device and near-eye display system comprising same

Abstract

The invention relates to a large-field light freeform surface waveguide-type visual optical imaging device and a near-eye display system comprising the same. The near-eye display system is formed by bilaterally symmetrically arranging two left and right same visual optical imaging devices, wherein each visual optical imaging device comprises a freeform surface waveguide element and a projection optical component; each projection optical component is used for projecting an image optical signal emitted from an image source element into the corresponding freeform surface waveguide element; and ahollow cavity is formed in the middle part of each freeform surface waveguide element, so that the weight of the waveguide elements is greatly reduced, light travels towards a pupil exit direction inthe freeform surface waveguide elements through the total reflection condition, exits through an emission surface after not meeting the total internal reflection condition and then enters eyes of a user, and meanwhile, the light in a transmission direction can be normally transmitted to directly enter human eyes, thereby achieving ultrathin light near-eye display.

Description

technical field [0001] The invention relates to the field of visual display technology, in particular to a light-weight free-form surface waveguide visual optical imaging device with a large field of view and a near-eye display system thereof. Background technique [0002] As an essential part of people's life, display technology has been playing an important role in various fields. In recent years, with the development and popularization of various flat panel display technologies, the simple display of real world information or virtual image information has been unable to meet people's needs for display. For richer visual perception effects, Augmented Reality (AR) technology emerges as the times require. [0003] Augmented reality technology is different from virtual reality technology that completely replaces the user's real-world environment. It is an interactive experience of the real-world environment in which objects residing in the real world are not replaced but are...

AI Technical Summary

Problems solved by technology

In recent years, with the development and popularization of various flat panel display technologies, pure real world information or virtual image information display can no longer meet people's needs for display.

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