What is the focus performance of CRT tubes
Updated: December 5, 2007 20:50:08 Author:
Focusing performance of CRT tube: The CRT projector decomposes the input source signal to the fluorescent screen of three CRT tubes R (red), G (green), and B (blue), and emits light under high voltage. After signal amplification and convergence, a color image is displayed on the large screen. The focus of CRT tubes is divided into three types: electrostatic focus, magnetic focus and electromagnetic composite focus. Electromagnetic composite focus is more common. The advantages of CRT tube focus performance are good focus performance and high focus accuracy. It can be divided into focus and corner focus to make the projected picture clear.
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