High-pressure gas discharge lamp and electron emissive electrode
High-pressure sodium vapor discharge lamp
High-pressure sodium vapor discharge lamp
High-pressure sodium-vapor discharge lamp
Hollow anode optical radiation source
Hollow cathode
Image display apparatus having ION pump including permanent...
Image tube with conditioned input screen
Indicator display tube
Intense ion beam producing reflex triode
Keep-alive electrode arrangement for display panel having memory
Lamp equipped with magnets
Lamp method and apparatus using multiple reflections
Light source lamp with particular envelope structure to accommod
Lighting apparatus using microwave energy
Lighting apparatus using microwave energy
Load current pulse control devices
Load current pulse control devices
Low pressure discharge lamp
Low pressure gas discharge switch