Beam-Deflection and Photo Devices

The development of practical beam-deflection and photo devices coincides with the lifetime of the Institute of Radio Engineers. The intimate association of these two electronic elements is illustrated by the development of the television camera tube. In more detail, both the historical development and the more significant recent advances are described for beam-deflection devices such as the cathode-ray oscillograph, storage tubes, and television display tubes. Similarly, advances are indicated in the field of photo devices such as photoemissive, photoconductive, and photovoltaic cells; multiplier photo-tubes; image tubes; and light amplifiers.