HOLOGRAPHIC SYSTEM WITH IMPROVED PROJECTION QUALITY

The invention relates to a method for generating a pixelated projection in a reconstruction space. The method includes determination of a first discretized hologram, wherein the first discretized hologram is determined to generate a desired amplitude profile of an output pixel in the reconstruction space; determination of a second discretized hologram having a phase distribution determined to create a desired projection in the reconstruction space; determination of a tiled hologram by tiling the second discretized hologram a number of one or more times in one or two directions, wherein the number of tilings and the first discretized hologram are determined subject to an output pixel constraint determined based on a dimension of the amplitude profile of the output pixel in the reconstruction space and a pixel pitch in the reconstruction space. A composite hologram is determined based on a phasor multiplication of the first discretized hologram and the tiled hologram. A coherent input beam is phase modulated based on the composite hologram so that the phase modulated beam generates the pixelated projection in the reconstruction space. A particular application of the invention is the use for volumetric additive manufacturing (VAM), especially for medical use, such as implants.