Iconoscope
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The iconoscope 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 used under
Zworykin holding the iconoscope tube, in a 1950 magazine article
A graphic from Kálmán Tihanyi's "Radioskop" patent from 1926 (part of the UNESCO's Memory of the World Programme)
Two iconoscope tubes. The type 1849 (top) was the common tube used in studio television cameras. The camera's lens focused the image through the tube's transparent "window" (right) and onto the dark rectangular "target" surface visible inside. The type 1847 (bottom) was a smaller version.
Iconoscope and mosaic from a TV camera, circa 1955.
Philo Farnsworth
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Philo Taylor Farnsworth was an American inventor who was granted the first patent for the television by the United States government. He also invented a video camera tube and the image dissector. He s
Iconoscope
…service employing the super-emitron began at studios in Alexandra Palace in 1936, and a patent was issued in the US in 1937. Meanwhile, in 1933, Philo Farnsworth had also applied for a patent for a device that used a charge storage plate and a low-velocity electron scanning beam. A corresponding patent was issued…
Farnsworth in 1939
Yearbook photo of Farnsworth, 1924
Plaque at the location of Farnsworth's San Francisco laboratory on Green Street.
1943 company advertisement.