Annulus fluorescent lamp with overheat protection
Cathode for an electron gun
Cathode structure for a cathode ray tube
Cathode structure for a high power laser
Cooling an electronic tube
Cooling structure for a screen grid electron tube such as a tran
Electron beam apparatus with adjusting mechanism for a thermally
Electron beam collector assembly for a velocity modulated tube
Fast warm-up cathode for high power vacuum tubes
Hot-cathode type low-pressure rare gas discharge lamp
Ion source having fluid-cooled supply conductors
Light emission device and display device
Line cathode heater and support structure for a flat panel displ
Metal halide arc discharge lamp having shielded electrode
Photomultiplier tube having a metal-made sidewall
Thermionic hairpin cathode