An optically made, high-efficiency in-line holographic mask for in-line holographic patterning of a workpiece, and apparatus and methods for performing same. The memory device has a first and a second sector of memory cells. At least one separating bracket has a front side and a rear side with two parallel and joined cross-bars extending between the front side and the rear side. The label format created from the scanned label is thereafter useable to print labels similar in format to the label which was scanned. The strip lights can be installed at a later point in time.