ACHROMATIZED TRANSMISSION-TYPE HOLOGRAPHIC SCREEN FOR A MULTIVIEW STEREOSCOPIC IMAGE SYSTEM

The main drawback of the use of transmission-type holographic screens is poor color reproduction caused by their high spectral dispersion. F or overcoming this drawback, a long, narrow diffusing slit is used as an object when recording the screen. The necessary size and position o f the slit relative to the photoplate and to the recording and reconst ruction beams are determined by the phase relations of the beams. By u se of the slit, holographic screens of 30 cm x 40 cm are recorded with a diverging reference beam and are used to display a multiview full-c olor stereoscopic image. The images displayed on the screen show no si gn bf color separation except near the edges of the screen. The image brightness on the screen is high enough that it can be watched in a no rmally illuminated room. (C) 1997 Optical Society of America.