Enlargement of viewing zone for CGH(computer-generated holography)using sampled hologram

Abstract

We studied the enlargement of viewing zone concerning a holography that has a sampled hologram by pixels and introduces a lens for reproducing 3-D images. We describe that higher-order reconstructed image reproduced from the fringe patterns containing aliasing components can be equivalent to original object. It is also shown that the viewing zone angle can be enlarged by the combination of these higher-order reconstructed images.