Holoprojection of Images by a Double Diffraction Process

Abstract

Three dimensional images having continuous horizontal parallax were developed by wavelength enconding of view followed by a natural decoding process of projection onto a diffractive screen. It allows for the direct criation of "holoimages" by using projected images of a real object substituting holographic images for some applications in the visual aarts. It also allows for the enlargement of holograms performing simultaneously its conversion to the white light observation. White light is employed in this process, since laser light is only necessary for constructing the diffractive components.