Theory Research on Fresnel Diffraction Hologram Display with DMD
数字微镜用于菲涅耳衍射全息显示的理论研究

The intensity expression of DMD reconstruction field from Fresnel diffraction holography was educed.Based on the principle of forming gray image by 8 sub-images in a display period,simulation example and digital holography reconstruction image were compared.The comparison result indicates that the quality of DMD reconstruction image is lower than the quality of digital holography reconstruction image.Two decomposing methods,which are 8 sub-images and 256 sub-images,were compared in theory.The quality of DMD reconstruction image with 256 sub-images is better.But the feasibility of improving display images exists through optimizing DMD controlling method.