What is another word for projection tube?
Pronunciation: [pɹəd͡ʒˈɛkʃən tjˈuːb] (IPA) 
A projection tube is an electronic device that generates images by directing an electron beam onto a surface coated with phosphors. There are a number of alternative names for this device, each reflecting different aspects of its design and intended application. One common synonym is cathode ray tube (CRT), which refers to the tube's use of a cathode to emit electrons. Other terms include image projection tube, electron gun tube, and picture tube. In addition to these specific names, there are also more general terms that describe the function and purpose of projection tubes, such as display device, monitor, or screen. Each of these terms emphasizes the importance of projection tubes in creating and displaying visual content for a wide range of applications.
