The present invention provides an apparatus for forming an asymmetric
illumination beam pattern that can be advantageous when illuminating
channel letters in addition to enabling the creation of cove lighting, as
well as other applications benefiting from asymmetric illumination
patterns. The apparatus comprises one or more light-emitting elements for
creating the illumination. A first optical element is operatively
associated with each of the light-emitting elements and provides a means
for manipulating the illumination in a first direction. A second optical
element is operatively associated with predetermined light-emitting
elements and provides a means for manipulating the illumination in a
second direction. Upon the interaction of the illumination with both the
first and second optical elements, the illumination being created can
have an asymmetric beam pattern.