Improved manufacturing for virtual and augmented reality systems and components

Abstract

Disclosed is an improved diffraction structure for 3D display systems. The improved diffraction structure includes an intermediate layer that resides between a waveguide substrate and a top grating surface. The top grating surface comprises a first material that corresponds to a first refractive index value, the underlayer comprises a second material that corresponds to a second refractive index value, and the substrate comprises a third material that corresponds to a third refractive index value. According to additional embodiments, improved approaches are provided to implement deposition of imprint materials onto a substrate, which allow for very precise distribution and deposition of different imprint patterns onto any number of substrate surfaces.

Description

Technical field [0001] The present disclosure relates to virtual reality and augmented reality imaging and visualization systems. Background technique [0002] Modern computing and display technologies have facilitated the development of systems for so-called "virtual reality" or "augmented reality" experiences, in which digitally reproduced images or parts of them are presented to users in a way that looks lifelike or can be perceived as lifelike. Virtual reality or "VR" scenarios generally involve the presentation of digital or virtual image information, but the actual real-world visualization input cannot be seen; augmented reality or "AR" scenarios generally involve the presentation of digital or virtual image information as a visual enhancement of the actual world around the user . For example, refer to figure 1 , Describes an augmented reality scene (4), where users of AR technology see a real-world setting (6) similar to a park, which features people, trees, buildings in ...

AI Technical Summary

Problems solved by technology

If the adaptive response to a displayed point does not correspond to the virtual depth at that point, as determined by convergence and binocular depth cues for stereopsis, the human visual system may experience adaptive conflict, resulting in unstable imaging, deleterious Eye strain, headaches, and, in the absence of adaptive information, an almost total non-existence of surface depth

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