Electron gun cathode support structure

Electron gun design using a lanthanum hexaboride cathode

Electron gun for cathode ray tube with improved cathode structur

Electron gun structure including cathode support strap with...

Electron tube having a low impedance reduced stress anode struct

Electron tube having linear damper

Electron tube sealing structure

Electron tube with stepped fixing portion

Electronic tubes

Electrostatic focusing arrangements

Elongate tubular incandescent lamp with filament shorting bars

Envelope for metal halide discharge lamp with protective layer c

Fast warm up cathode for a cathode ray tube

Field emission devices having corrugated support pillars...

Filament alignment spud for incandescent lamps

Filament array for incandescent lamp

Filament electrode and fluorescent lamp

Filament structure and method of making such structure

Filament structure for incandescent lamps

Filament support for incandescent lamps