Patent ID: 8593710
Filing Date: 2013-11-26
Classification: G03H

Abstract:
1. Holographic projection device for the reconstruction of two- or three-dimensional scenes to be viewed through at least one virtual observer window in an observer plane by an observer, the holographic projection device comprising at least one light source which emits sufficiently coherent light for the generation of a wave front, and with at least one light modulator device comprising modulation elements and which is of a two-dimensional design, wherein the light modulator device is provided for the modulation of the amplitude and/or phase of incident light, wherein at least one scanning system and one projection system are provided, where the scanning system comprises the at least one light source, the at least one light-modulator device and the at least one scanning element, and where the light modulator device and the scanning element are combined such that the light emitted by the scanning element scans one after another one-dimensional arrangements of modulation elements of the two-dimensional light modulator device, where the scanning system is designed such that it sequentially creates a wave front which contains the information required for reconstructing the two- or three-dimensional scene, and where the projection system comprises an optical element serving as a screen on which a Fourier transform is imaged and whose size is chosen such that a periodic continuation of diffraction orders lies outside of the screen, and at least one imaging means and the at least one virtual observer window where the projection system is designed such that it subsequently reconstructs the two- or three-dimensional scene.