crt
Definition
Noun: 1. Cathode Ray Tube: A specialized vacuum tube in which a heated cathode emits a stream of electrons. This electron beam is accelerated and focused by high-voltage anodes and directed (or deflected) to strike a phosphorescent screen, creating a visible image. This technology was the foundation for traditional television sets, computer monitors, and oscilloscopes.
Usage Examples
- Noun:
- The old computer monitor used a bulky CRT, making it very deep and heavy.
- Before flat-screen LCDs became common, most televisions contained a CRT.
- The engineer adjusted the CRT in the oscilloscope to get a clearer signal reading.
Advanced Usage
- "CRT display/monitor/screen": A complete display device built around a cathode ray tube.
- The classic arcade game had an authentic feel due to its vibrant CRT monitor.
Variants and Related Words
- Cathode Ray Tube (full form): The complete technical name for a CRT.
- CRT display (n): A display device utilizing a cathode ray tube.
- Flat-panel display (n): A modern display technology (e.g., LCD, LED, plasma) that is thinner and lighter than a CRT, often mentioned in contrast.
Synonyms
- Picture tube (specifically for televisions)
- Display tube
- Braun tube (historical/technical term)
Related Terms (Technical Context)
- Phosphor (n): The coating on the inside of the screen that glows when struck by the electron beam.
- Electron gun (n): The assembly inside the CRT that produces and emits the electron beam.
- Deflection coils (n): Electromagnets that steer the electron beam across the screen.
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
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