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Image orthicons were used extensively in the early color television cameras such as the RCA TK-40/41, where the increased sensitivity of the tube was essential to overcome the very inefficient, beam-splitting optical system of the camera. [96] [97] The image orthicon tube was at one point colloquially referred to as an Immy.
An image (beam) splitter was used in the TK-40/41 to direct the incoming light into three image orthicon tubes for recording moving pictures in the red, green, and blue component colors. The early cameras required a very large amount of lighting , which caused television studios to become very warm due to the use of multi- kilowatt lamps (a ...
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]
1946 RCA's TK-10 studio camera used a 3" IO – Image Orthicon tube with a 4 lens turret. The RCA TK-30 (1946) was widely used as a field camera. A TK-30 is simply a TK-10 with a portable camera control unit. The 1948 Dumont Marconi MK IV was an Image Orthicon camera. Marconi's first camera was shown in 1938. [4]
The aims of the designers of the camera were, firstly, to produce a camera that was more tolerant to mis-registration and, secondly, to achieve a lighter camera by using smaller vidicon tubes to replace some of the large heavy IO tubes. The camera had an image orthicon tube for the luminance channel and three vidicon tubes for the colour channels.
In Australia we were using Image Orthicon cameras at least into the 1970's. Fernseh brought out the only solid state Image orthicon camera I know of in about 1968. We referred to the tubes as "IO's". Peter Resch 06:39, 28 April 2006 (UTC)
The Pye Mk6 image orthicon camera, known as the PC60, was the last version supplied to BBC Outside Broadcasts in 1963 for a new fleet of eight outside broadcast vans. These cameras were the first generation of outside broadcast cameras to feature a zoom lens, rather than a turret system. [ 4 ]
EMI 2001s on their last day in BBC Elstree Centre Studio C in July 1991. The last programme in the world to use EMI 2001s to record images was EastEnders. 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.
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