A vehicle window includes a first window side and a second window side. The first
window side includes an optical center and a plurality of grooves positioned about
the optical center. The grooves have a number of dimensions including a depth and
a width. The grooves define surfaces effective to redirect light that passes through
said window. At least one dimension of the grooves is varied about the optical
center. The window is effective to provide a plurality of angles of light redirection
about the optical center.