an interlaced image element with segments each comprising an elongate strip of an image, wherein the segments are organized into sets and wherein the interlaced image segment comprises at least one illumination gap proximate to each of the sets, the illumination gaps being at least translucent to light; and

a reflective substrate comprising a plurality of reflectors each having an elongate reflective surface extending parallel to the segments of the interlaced image and having a focal point proximate to a surface of the interlaced image element, wherein the interlaced image element is spaced apart from the reflective surface and wherein light passing through the illumination gaps is focused by the reflectors onto a subset of the segments to illuminate the subset of the segments.