Projection device and method for holographic reconstruction of scenes

摘要

A holographic reconstruction of scenes includes a light modulator, an imaging system with at least two imaging means and an illumination device with sufficient coherent light for illumination of hologram coded in the light modulator. The at least two imaging means are arranged such that a first imaging means is provided for the magnified imaging of the light modulator on a second imaging means. The second imaging means is provided for imaging of a plane of a spatial frequency spectrum of the light modulator in a viewing plane at least one viewing window. The viewing window corresponds to a diffraction order of the spatial frequency spectrum.

主权项

1. A method for the holographic reconstruction of scenes, comprising:
imaging sufficiently coherent light of an illumination device having at least one light source into an observer plane by an imaging system having at least two imaging means, illuminating a light modulator encoded with a hologram by the at least one light source, generating a spatial frequency spectrum as a Fourier transform of the encoded hologram in a plane of a first imaging means, imaging the light modulator into a plane of a second imaging means by the first imaging means, imaging the spatial frequency spectrum from the plane of the first imaging means into at least one virtual observer window in the observer plane by the second imaging means, and presenting a reconstructed scene to at least one observer in an enlarged fashion in a reconstruction space, where the size of the reconstruction space is expanded due to the enlarged imaging of the light modulator.