METHODS AND SYSTEMS FOR GENERATING VIRTUAL CONTENT DISPLAY WITH A VIRTUAL OR AUGMENTED REALITY APPARATUS

摘要

Several unique configurations for interferometric recording of volumetric phase diffractive elements with relatively high angle diffraction for use in waveguides are disclosed. Separate layer EPE and OPE structures produced by various methods may be integrated in side-by-side or overlaid constructs, and multiple such EPE and OPE structures may be combined or multiplexed to exhibit EPE/OPE functionality in a single, spatially-coincident layer. Multiplexed structures reduce the total number of layers of materials within a stack of eyepiece optics, each of which may be responsible for displaying a given focal depth range of a volumetric image. Volumetric phase type diffractive elements are used to offer properties including spectral bandwidth selectivity that may enable registered multi-color diffracted fields, angular multiplexing capability to facilitate tiling and field-of-view expansion without crosstalk, and all-optical, relatively simple prototyping compared to other diffractive element forms, enabling rapid design iteration.

主权项

1. A method for generating stereoscopic images for virtual reality and/or augmented reality, comprising:
transmitting input light beams into a substrate of an eyepiece by using an in-coupling optic element; deflecting a first portion of the input light beams toward second diffractive elements on a first layer of the eyepiece by using at least first diffractive elements on the first layer; and directing first exiting light beams toward a viewer by deflecting some of the first portion of the input light beams with the second diffractive elements on the first layer.