Holographic projector and method

A holographic projector comprising:

• a display device arranged to form a holographic wavefront by spatially modulating light in accordance with a hologram of a picture displayed thereon;
• a magnification system comprising a first lens and a second lens, the first lens being arranged to form a holographic reconstruction of the picture by focusing the holographic wavefront substantially at a focal plane of the first lens, wherein the holographic reconstruction of the picture comprises a plurality of pixels;
• a kinoform being disposed between the first lens and the second lens and being arranged to apply a phase-delay to each pixel of the holographic reconstruction such that the phase-delay applied to each pixel is different to the phase-delay of the adjacent pixels;
• and
• a movement assembly arranged to move the kinoform such that a plurality of different phase-delays are applied to each pixel of the holographic reconstruction within the integration time of the human eye;
• wherein the kinoform comprises an array of zones and is arranged such that the width and/or the height of each zone is substantially equal to the distance between adjacent pixels of the holographic reconstruction, and
• wherein each zone of the kinoform is arranged to apply a different single phase delay to incident light to a single phase delay applied by an adjacent zone.