What is CRT Technology
How It Works
CRT (Cathode Ray Tubes) technology enables the projection of artefact free images with excellent colour reproduction, grey scale adjustment, and unbeatable contrast ratio.
CRT-based projectors are the ideal solution for big screen entertainment, providing the best video performances for a real cinema-like atmosphere.
CRT: How it works: A video projector is equipped with 3 CRTs: each displaying one single colour image of red, green and blue and an optical lens to display the 3 separated colour images on screen.
CRT technology produces the highest contrast ratio, resulting in a better black level detail than its rival projection technologies. This is achieved by the ability of CRT technology to literally ‘switch off’ when a black image is displayed, resulting in a ‘true
black’ level detail. The opposite occurs when a bright image is displayed, concentrating all of its power into the brightness of image. As CRT technology is not based on a matrix concept, it is able to display a very high resolution, without artefacts, from direct input
sources. An impressively long tube life of 12,000 hrs at full brightness can be enjoyed, with a further 3000-5000 hrs of very good image quality as the tubes begin to fade ‘very slowly’ in brightness: this tube life equates to one movie per night for 20 years, before the
tubes will need to be replaced!