Several aspects of graphic codes of computer-generated holograms are d
iscussed. This is in contrast to the algorithmic studies that have dom
inated research in the field of computer holography in recent years. W
e study the graphic cells of binary cell-oriented holograms under the
aspects of specific fabrication and performance problems such as the p
en-width problem and zero-order scattering. As result; we present expe
riments with new or modified cell structures that avoid some of these
problems.