Vuzix Corporation
IMAGE LIGHT GUIDE WITH CIRCULAR POLARIZER

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Abstract:

An imaging apparatus for conveying a virtual image superimposed within a view of an ambient environment has a wave-guide having first and second surfaces. An in-coupling diffractive optic on one of the planar surfaces is disposed to direct image-bearing light beams into the waveguide. An out-coupling diffractive optic on one of the planar surfaces of the waveguide is disposed to direct the image-bearing light beams from the waveguide toward a viewer eyebox. An outer cover protects as least part of the waveguide from undesirable environmental influences of an ambient environment while supporting views of the ambient environment from the eyebox. A circular polarizer interposed between waveguide and the outer cover blocks the return of stray light into the waveguide.

Status:
Application
Type:

Utility

Filling date:

28 Jan 2019

Issue date:

26 Nov 2020