Iconoscope

Vladimir Zworykin's camera tube at RCA, named in 1931 Farnsworth's dissector needed floods of light. The iconoscope solved that with charge storage: each point of its target kept building up charge for the whole interval between scans, so the camera became sensitive enough for real studios and outdoor events. RCA settled on the name on October 23, 1931. Credit is contested, and fairly so: Hungarian engineer Kálmán Tihanyi had published a charge-storage tube design, RCA approached him in 1930, and Britain's EMI followed the same storage principle for its own camera. Storage tubes like these made live electronic television practical on both sides of the Atlantic.