Briefly, in accordance with one or more embodiments, a buried numerical
aperture expander may be utilized to provide a head-up or virtual display
at a larger field of view without requiring a larger amount of space,
larger sized display, or larger sized optics. The buried numerical
aperture expander is capable of selectively reflecting light emanating
from a display such that the reflected light is expanded into a larger
field of view, while simultaneously allowing other light to be
transmitted through the buried numerical aperture expander without
expansion so that the buried numerical aperture expander may be deployed
in conjunction with a windshield or window without adversely affecting
the ability to see through buried numerical aperture expander.