Cathodic tube

The term cathode-ray tube, more commonly cathodic tube or CRT (acronym of the English term Cathode Ray Tube), commonly indicates the used technology for the visualization in the monitor and the televisori, that it consists ad hoc in the convogliare of the cathode rays on an sensitive surface, that reconstructs the visible image. The measure of monitor CRT is carried out on the diagonal of the visible area, in Inches.

The technology to the base cathodic tube was developed in 1897 from the German physicist Karl Ferdinand Braun who realized the first oscilloscope, while the first prototype of the type used in the modern televisori was realized from American inventor Philo Farnsworth.

Currently the technology of the cathodic tube is destined to a progressive obsolescence in favor of the technologies to the plasma, to crystals liquids and OLED, the less cumbersome, thriftier in the consumption electrical worker and with production costs in continuous reduction.
The cathodic tube monitor introduces the advantage, regarding the concurrent technologies, of a better speed than reaction (or minor appreciatedin the image and a lot, latenza use videogiochi) with more faithful colors.