Three-dimensional TV: a proposed system

A three-dimensional television system is proposed in which polarizing goggles are used to decode the odd-even TV screen line field differentiation of right- and left-eye images. The system, assuming only the modification of television hardware currently in use in Britain, would be entirely passive at the viewing end; and calls for a cost increment over existing color TV similar to that between color TV and black-and-white TV. The material proposed for use in the goggles is polycrystalline, lanthanum-modified lead zirconate titanate ceramic, sandwiched between polarizers to create a shutter that can be switched by the appropriate application of an electric field.