Holography

accordance acoustic angle antenna aperture apparatus appear Application arrangement British cause character coherent light color comprises contains corresponding described desired detection detector developed diffraction diffuser directed display distance diverging effect element embodiment employed emulsion example exposure field film filter frequency fringes front function hologram HOLOGRAPHY illuminated illustrated incident includes indicated intensity invention laser layer length lens letter light source located manner material means medium method micro-hologram mirror modulated moving object obtained operation Opt Soc optical output parallel passes Patented path pattern phase photographic plate placed plane portion position present prism produce projected radiation rays received reconstruction recording recording medium reference beam reflected RELATING relative respect result scan screen selected separate shown side signal single spacing spatial station suitable surface transducers transmitted transparency viewing virtual wave wavelength