Patent ID: 6982817
Filing Date: 2006-01-03
Classification: G02B,G03H

Abstract:
1. A method of producing a video screen hologram for forming a projected video image thereon, said video screen hologram being formed as a holographic image of a real video screen by illuminating the real video screen with narrowband light to generate a hologram of the real video screen, said method comprising: making a plurality of individual recordings by sequentially illuminating a plurality of different partial areas of the real video screen; and forming a video screen hologram of the entire video screen by a composition of the individual recordings; wherein illumination of the video screen is performed by guiding a scanning pulsed laser beam over the video screen; and the video screen hologram is one of a contact hologram and an image plane hologram, whereby during reconstruction of said holographic image of a real video screen, said projected video image appears in a hologram plane of said video screen hologram.