EYEPIECE FOR VIRTUAL, AUGMENTED, OR MIXED REALITY SYSTEMS
First Claim
1. An eyepiece waveguide for a virtual reality, augmented reality, or mixed reality system, the eyepiece waveguide comprising:
- a substrate that is at least partially transparent;
an input coupler region formed on or in the substrate and configured to divide and re-direct at least one input light beam that is externally incident on the input coupler region into first and second guided light beams that propagate inside the substrate;
a first orthogonal pupil expander (OPE) region formed on or in the substrate and configured to divide the first guided light beam from the input coupler region into a plurality of parallel, spaced-apart light beams;
a second OPE region formed on or in the substrate and configured to divide the second guided light beam from the input coupler region into a plurality of parallel, spaced-apart light beams; and
a common exit pupil expander (EPE) region formed on or in the substrate and configured to re-direct the light beams from both the first and second OPE regions such that they exit the substrate,wherein the input coupler region is positioned between the first OPE region and the second OPE region and is configured to direct the first guided light beam toward the first OPE region and to direct the second guided light beam toward the second OPE region.
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Accused Products
Abstract
An eyepiece waveguide for an augmented reality. The eyepiece waveguide can include a transparent substrate with an input coupler region, first and second orthogonal pupil expander (OPE) regions, and an exit pupil expander (EPE) region. The input coupler region can be positioned between the first and second OPE regions and can divide and re-direct an input light beam that is externally incident on the input coupler region into first and second guided light beams that propagate inside the substrate, with the first guided beam being directed toward the first OPE region and the second guided beam being directed toward the second OPE region. The first and second OPE regions can respectively divide the first and second guided beams into a plurality of replicated, spaced-apart beams. The EPE region can re-direct the replicated beams from both the first and second OPE regions such that they exit the substrate.
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Citations
23 Claims
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1. An eyepiece waveguide for a virtual reality, augmented reality, or mixed reality system, the eyepiece waveguide comprising:
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a substrate that is at least partially transparent; an input coupler region formed on or in the substrate and configured to divide and re-direct at least one input light beam that is externally incident on the input coupler region into first and second guided light beams that propagate inside the substrate; a first orthogonal pupil expander (OPE) region formed on or in the substrate and configured to divide the first guided light beam from the input coupler region into a plurality of parallel, spaced-apart light beams; a second OPE region formed on or in the substrate and configured to divide the second guided light beam from the input coupler region into a plurality of parallel, spaced-apart light beams; and a common exit pupil expander (EPE) region formed on or in the substrate and configured to re-direct the light beams from both the first and second OPE regions such that they exit the substrate, wherein the input coupler region is positioned between the first OPE region and the second OPE region and is configured to direct the first guided light beam toward the first OPE region and to direct the second guided light beam toward the second OPE region. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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Specification