METHOD FOR GENERATION OF REFLECTION HOLOGRAMS Russian patent published in 1999 - IPC

FIELD: optical instruments for generation of holograms from multiple-aspect stereoscopic images. SUBSTANCE: reference light beam is generated as zero-order diffraction beam, information beam is generated as diffraction beam of order minus-one. Information beam is directed through holographic plate or film, fine-definition lens raster or plate or film with source multiple-aspect photo images and is reflected back to opposite side of holographic plate or film using flat reflecting mirror which is mounted in hinder focal plane of fine-definition lens raster. Reference beam may be generated from part of information beam which is passed through plate or film with source multiple-aspect photo images which are arranged in random order, fine-definition lens raster which lenses are also arranged in random order, through holographic plate or film and diffraction pattern behind them. EFFECT: decreased requirements for coherence length of light sources. 5 cl, 3 dwg