The optical problems in the visualization of information, including optical
information technologies and their optical element base, are analyzed. The
main areas analyzed are: optical information technologies, optical informa
tion carriers, optically controlled transparencies or spatial light modulat
ors, deflectors, optical screens, and the optics of projection systems. Pro
mising optical methods and displays are singled out. (C) 2000 The Optical S
ociety of America. [S1070-9762(00)00302-X].