high-vacuum cathode ray tube

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• cathode ray tube — UK US noun [countable] [singular cathode ray tube plural cathode ray tubes] physics a piece of equipment in televisions and some computers that creates the image on the screen. A beam of high energy …   Useful english dictionary

• cathode ray tube — ► NOUN ▪ a high vacuum tube in which cathode rays produce a luminous image on a fluorescent screen, used in televisions and visual display units …   English terms dictionary

• Cathode ray tube — Cutaway rendering of a color CRT: 1. Three Electron guns (for red, green, and blue phosphor dots) 2. Electron beams 3. Focusing coils 4. Deflection coils 5. Anode connection 6. Mask for separating beams for red,… …   Wikipedia

• cathode-ray tube — /kath ohd ray / a vacuum tube generating a focused beam of electrons that can be deflected by electric fields, magnetic fields, or both. The terminus of the beam is visible as a spot or line of luminescence caused by its impinging on a sensitized …   Universalium

• cathode-ray tube — noun a vacuum tube in which a hot cathode emits a beam of electrons that pass through a high voltage anode and are focused or deflected before hitting a phosphorescent screen • Syn: ↑CRT • Hypernyms: ↑gas discharge tube • Hyponyms: ↑Crookes tube …   Useful english dictionary

• cathode ray tube — noun a high vacuum tube in which cathode rays produce a luminous image on a fluorescent screen …   English new terms dictionary

• cathode-ray tube (CRT) — Vacuum tube that produces images when its phosphorescent surface is struck by electron beams. CRTs can be monochrome (using one electron gun) or colour (typically using three electron guns to produce red, green, and blue images that, when… …   Universalium

• cathode ray — a flow of electrons emanating from a cathode in a vacuum tube and focused into a narrow beam. [1875 80] * * * Stream of electrons leaving the negative electrode, or cathode, in an evacuated or gas filled discharge tube or emitted by a heated… …   Universalium

• cathode ray — noun a beam of electrons emitted from the cathode of a high vacuum tube …   English new terms dictionary

• X-ray tube — An X ray tube is a vacuum tube that produces X rays. They are used in X ray machines. X rays are part of the electromagnetic spectrum, an ionizing radiation with wavelengths shorter than ultraviolet light. X ray tubes evolved from experimental… …   Wikipedia

• X-ray tube — noun a vacuum tube containing a metal target onto which a beam of electrons is directed at high energy for the generation of X rays • Hypernyms: ↑tube, ↑vacuum tube, ↑thermionic vacuum tube, ↑thermionic tube, ↑electron tube, ↑thermionic valve •… …   Useful english dictionary