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A vidicon tube is a video camera tube design in which the target material is a photoconductor. The vidicon was developed in 1950 at RCA by P. K. Weimer, S. V. Forgue and R. R. Goodrich as a simple alternative to the structurally and electrically complex image orthicon.
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The iconoscope was replaced in Europe around 1936 by the much more sensitive Super-Emitron and Superikonoskop, [7] [8] [9] 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. [10] [11]
Bosch Fernseh marketed a line of high end cameras (KCU, KCN, KCP, KCK) in the US ending with the tube camera KCK-40 (1978). Image Transform (in Universal City, California) used specially modified 24 frame KCK-40 for their "Image Vision" system. This had a 10 MHz bandwidth, almost twice NTSC bandwidth. This was a custom pre HDTV video System.
A Farnsworth image dissector tube. An image dissector, also called a dissector tube, is a video camera tube in which photocathode emissions create an "electron image" which is then swept up, down and across an anode to produce an electrical signal representing the visual image.
Electron gun from an oscilloscope CRT Setup of an electron gun. 1. Hot cathode.2. Wehnelt cylinder.3. Anode. A direct current, electrostatic thermionic electron gun is formed from several parts: a hot cathode, which is heated to create a stream of electrons via thermionic emission; electrodes generating an electric field to focus the electron beam (such as a Wehnelt cylinder); and one or more ...
The EMI 2001 broadcast studio camera was an early, very successful British made Plumbicon studio camera that included the lens within the body of the camera. Four 30 mm tubes allowed one tube to be dedicated solely to producing a relatively high resolution monochrome signal, with the other three tubes each providing red, green and blue signals.
(An alternative way of producing a sharp luminance image was the three tube luminance-red-blue camera (the 'YRB' camera). [10] However, this system was not favoured by most manufacturers, because it was deficient in colour hue fidelity. [11] [12]: 473 Even so, a 3-tube camera of this type was produced by Bosch/Fernseh, their type KCU40 [13] [14]).