raster scan

Definitions

Computing

  • noun one sweep of the picture beam horizontally across the front of a CRT screen

Electronics

  • A technique or technology for generating, recording, or presenting images, in which a beam is swept across a raster. In a CRT, for instance, the intensity of the electron beam is varied depending on the color and brightness a given pixel will have within the overall image.
  • In radars, horizontal or vertical scanning one line at a time to obtain the desired coverage, such as that having a desired shape, or encompassing a given plane.
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