cathode ray

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cathode ray

[′kath‚ōd ¦rā]
(electronics)
A stream of electrons, such as that emitted by a heated filament in a tube, or that emitted by the cathode of a gas-discharge tube when the cathode is bombarded by positive ions.

cathode ray

In the early part of the 20th century, it was the first name given to electron beams emitted from a negatively charged cathode in a vacuum tube. The term has been used ever since. See CRT.
References in periodicals archive ?
Almunia said the violations were especially harmful for consumers, as cathode-ray tubes accounted for 50 to 70 percent of the price of a screen.
These are likely to be the integrated digital televisions, whereas at the moment people are using cathode-ray tube TVs and set top boxes which give off a lot of energy as heat.
Existing cathode-ray tube displays for professional use have contrast ratios of roughly 10,000-100,000 to 1.
Compared with ink on paper, cathode-ray tubes and liquid crystal displays are bulky and heavy and they consume considerable amounts of power.
In Japan, more and more cathode-ray tube televisions are replaced by liquid crystal, plasma, and other types of television, the association said.
Although analog-based cathode-ray tube (CRT) medical display monitors dominated the market until recently due to favorable pricing and economies of scale, liquid crystal display (LCD) monitors are fast gaining ground over them.
Until now, the only FDA approved equipment for all soft copy mammography reviews employed cathode-ray tube (CRT) displays, limiting choice and excluding radiologists from flat-panel technology's image quality, ergonomic and quality-assurance benefits.
founded in 1980, focused on designing, manufacturing and marketing cathode-ray tube (CRT) displays that were sold to original equipment manufacturers and display system integrators.
The CyberPro5350 merges multiple, independent sources of audio, video, text, graphics and animation simultaneously and delivers a high-quality output stream to devices such as traditional cathode-ray tube television, digital television panel displays and other graphics-intense multiple display devices.
The Dell 1900FP greatly improves viewing area compared with traditional 19-inch cathode-ray tube (CRT) monitors, and allows for viewing angles of up to 85 degrees from all sides of the monitor.