The first practical television-camera for picture pickup

• Television tube
• The tube that made TV possible
• Invented in 1923 by Vladimir Kosma Zworykin

Wiktionary Word definitions in Wiktionary
n. an early television camera having a mosaic of photoactive cells

WordNet Word definitions in WordNet
n. the first practical television-camera for picture pickup; invented in 1923 by Vladimir Kosma Zworykin

Wikipedia Word definitions in Wikipedia
The Iconoscope (from the Greek : εἰκών "image" and σκοπεῖν "to look, to see") was the first practical video camera tube to be used in early television cameras . The iconoscope produced a much stronger signal than earlier mechanical designs , and could be ...