Backlit illumination definition
Backlit illumination means a method of illumination by which the sign is illuminated from within and the light is projected back onto the support surface to create a halo effect around the sign copy. Such signs are usually fabricated from opaque materials which do not allow light to filter through the face or sides of the sign, and thus only illuminate the wall the sign is affixed to. “Backlit illumination” also is commonly referred to or known as “halo” illumination.