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A cathode-ray tube (CRT) is a vacuum tube containing one or more electron guns, which emit electron beams that are manipulated to display images on a phosphorescent screen. [2] The images may represent electrical waveforms on an oscilloscope , a frame of video on an analog television set (TV), digital raster graphics on a computer monitor , or ...
After the electrons strike the back of the tube they make their way to the anode, then travel through the anode wire through the power supply and back through the cathode wire to the cathode, so cathode rays carry electric current through the tube. The current in a beam of cathode rays through a vacuum tube can be controlled by passing it ...
Campbell-Swinton's concept was central to the cathode ray television because of his proposed modification of the CRT that allowed its use as both a transmitter and receiver of light. [1] The CRT was the system of electronic television that was subsequently developed in later years, as technology caught up with Campbell-Swinton's initial ideas.
This was a personal transport system originally developed in 1915. ... The television goggles used small cathode-ray tubes for the display and included a separate screen for each eye, much like ...
Flying-spot scanner technology was later implemented by DuMont Laboratories in the Vitascan color television system, released in 1956. Vitascan produced NTSC color video using a camera that acted in reverse by housing the flying-spot CRT which was projected through the camera's lens and illuminated the subject in a special light-tight studio.
Braun's original cold-cathode CRT, the Braun tube, 1897. The enduring fame of Ferdinand Braun is largely due to his invention of the cathode-ray tube, which is still commonly referred to as the "Braun tube." Today, the term typically refers to a high-vacuum tube in which an electron beam can be deflected in both horizontal and vertical directions.
U.S. patent 2,455,992, filed by Goldsmith and Estle Ray Mann on January 25, 1947, describes the world's first cathode ray tube based game, the "Cathode-ray tube amusement device". It was inspired by the radar displays used in World War II. [13]
The Chromatron is a color television cathode ray tube design invented by Nobel prize-winner Ernest Lawrence and developed commercially by Paramount Pictures, Sony, Litton Industries and others. The Chromatron offered brighter images than conventional color television systems using a shadow mask, but a host of development problems kept it from ...