Holographic projection device for the enlargement of a reconstruction volume

Method for enlarging a reconstruction volume for viewing a reconstructed scene, where at least one light source emits sufficiently coherent light, comprising imaging the sufficiently coherent light on to a screen, where at least one mirror element of at least one wave front modulator device is moved by at least one actuator so to effect a phase shift in order to modulate the incident light, thus directly forming a wave front, according to the reconstructed scene, the wavefront originates from the light source, and is imaged by an optical system into at least one virtual observer window in an observer plane where an observer eye is located, and the Fourier transform of the formed wave front is imaged by the optical system onto the screen.

Holographic projection device having a matrix of mirror elements, which comprises for an enlargement of a reconstruction volume for a reconstructed scene at least one wave front modulator device with an array of mirror elements, where the mirror elements have at least one actuator each, and where the mirror elements can be tilted in at least one direction and/or can be axially displaced with the help of the at least one actuator such to effect a phase shift, thereby directly forming a wave front for the representation of the reconstructed scene, and where the holographic projection device further comprises an optical system for imaging the wave front into at least one virtual observer window in an observer plane.