Holographic system with improved projection quality

Research output: Patent


The invention relates to a method for generating a pixelated projection in a reconstmction 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 reconstmction space; determination of a second discretized hologram having a phase distribution deterrnined to create a desired projection in the reconstmction 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 deterrnined subject to an output pixel constraint determined based on a dimension ofthe amplitude profile ofthe output pixel in the reconstmction space and a pixel pitch in the reconstmction 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
Original languageEnglish
Patent numberWO 2023/208843 A1
Priority date25/04/2022
Priority numberEP20220169752
Publication statusPublished - 2. Nov 2023


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