Working principle:
Holographic printer uses series of digital images of the three-dimensional scene and converts them into 3D hologram. Since information for digital 3D hologram is obtained from digital pictures pixels, so the hologram itself always has pixelated structure. Those holographic pixels are called holopixels (or hogels), currently the size of those is 0.8 x 0.8 mm or 1.6×1.6mm, each holopixel contains information from 600-1200 usual pixels with corresponding coordinates that are taken from different views of 3D scene imprinted. Depending on the holographic printer’s model, each holopixel is exposed ether three times with red, green and blue laser radiation, or simultaneously with all three colours lasers.
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