“He took a sheet of an electronegative alloy of his own contriving and, by a most ingenious process, deposited upon it ultramicroscopic globules of silver, each so tiny that its diameter is less than a single wave length of light. Silver is, of course, electropositive. Accordingly, when a beam of light falls upon this mosaic, a small electrical charge is built up on each of the countless little globules of deposited silver. Condensers store up these charges, which are directly proportional to the intensity of the original light beam, and the silver globule pattern thus formed represents an electrical image of the source of illumination.

“An electronic scanning beam, so narrow it covers only a single one of the ultramicroscopic silver beads at a time, sweeps at tremendous speed over the mosaic. This has the effect of discharging the silver-alloy photo-electric cells one by one, and releasing, simultaneously, the condenser charges. A current passes from the condenser, is stepped up and amplified enormously in like fashion, as in radio communication, and a visual image is reproduced in the form of light waves by another electronic beam and fluorescent screen. This magnification alone had been set at ten thousand times.