#Cathode ray tube diagram series
#Cathode ray tube diagram tv

The resulting image signal was carried out the left side of the tube and amplified. The cathode ray at the right swept the image plate, charging it, and the photoelectric cells emitted an electric charge in variance with the amount of light hitting them.

#Cathode ray tube diagram series

The image entered through the series of lenses at upper right, and hit the photoelectric cells on the image plate at left. The apparatus is similar to the iconoscope. A graphic from Kálmán Tihanyi's 'Radioskop' patent from 1926 (part of the UNESCO's Memory of the World Programme) Zworykin's patent diagram of a UV-microscope 1931. The iconoscope was replaced in Europe around 1936 by the much more sensitive Super-Emitron and Superikonoskop, while in the United States the iconoscope was the leading camera tube used for broadcasting from 1936 until 1946, when it was replaced by the image orthicon tube. The 'Olympic Cannon' television camera at the 1936 Summer Olympics in Berlin, developed by Emil Mechau at Telefunken and operated by Walter Bruch (inventor of the PAL-system.)

#Cathode ray tube diagram tv

The German company Telefunken bought the rights from RCA and built the superikonoskop camera used for the historical TV transmission at the 1936 Summer Olympics in Berlin. A research group at Westinghouse Electronic Company headed by Zworykin presented the iconoscope to the general public in a press conference in June 1933, and two detailed technical papers were published in September and October of the same year. Some of the principles of this apparatus were described when Vladimir Zworykin filed two patents for a television system in 19. This was the first fully electronic system to replace earlier cameras, which used special spotlights or spinning disks to capture light from a single very brightly lit spot. The iconoscope produced a much stronger signal than earlier mechanical designs, and could be used under any well-lit conditions. 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. Zworykin holding the iconoscope tube, in a 1950 magazine article