Patent ID: 8149266

Claim:
Holographic projection system for the reconstruction of scenes with at least one wave front modulated by video holograms, where light capable of generating interference illuminates a two-dimensional, encoded modulator cell matrix of spatial light modulator means, and where optical focussing means realise a Fourier transform of the modulated wave front in their focal plane, characterised in that Hologram computing means, which compute for each video hologram multiple strip holograms, each comprising multiple hologram segments, Encoding means, which encode the strip holograms in the time division multiplex mode and the hologram segments in the spatial division multiplex mode on the modulator cell matrix such that a wave front sequence modulated by the strip holograms is generated, which carry the modulation of the assigned hologram segments in partial light waves, propagating parallel First optical deflecting means which deflect the partial light waves propagating parallel such that their Fourier transforms appear in a step-like manner in the focal plane, A spatial frequency filter which lies in the focal plane and which lets pass the same diffraction order of all modulated partial light waves, Second optical deflection means which string together the passing diffraction orders of the partial light waves so to form a wave front strip, A time division multiplex controller which discretely controls adjustable third deflection means such that the third deflection means position the wave front strips side by side so to form the modulated wave front which reconstructs the scene.