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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.
The camera had an image orthicon tube for the luminance channel and three vidicon tubes for the colour channels. In addition, the camera was fully transistorized, apart from the four pick-up tubes. The camera went into full production in 1963 and sales of several hundred of the model were achieved over the next few years.
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]
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 the primary camera tube used in American television broadcasting from 1936 until 1946, when it was replaced by the image orthicon tube. [9] [10] October - In his continued attempts to improve his image dissector, the inventor Philo Farnsworth introduced a multipactor in October 1933.
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 other half of the light passes to the other side, through a 45-degree angle mirror and into a video camera tube. Because the camera dollies had to support two cameras—one conventional electronic image orthicon TV camera tube, and one 35mm motion picture camera—the system was bulky and heavy, and somewhat clumsy in operation.
Albert Rose (30 March 1910 – 26 July 1990) was an American physicist, who made major contributions to TV video camera tubes such as the orthicon, image orthicon, and vidicon. [ 1 ] [ 2 ] According to the New York Times, Albert Rose is credited as the father of the orthicon television camera tube, which was developed during World War II, and ...
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