Dimmable electrodeless light source

Dimmable electronic transformer circuit

Dimmer adaptable to either two or three active wires

Dimmer circuit for gas discharge lamps having electronic ballast

Dimmer for electrodeless discharge lamp

Dimmer for energy saving lamp

Dimmer switch for a fluorescent lamp

Dimming circuit for controlling electrical power

Dimming system and method for magnetically ballasted gaseous...

Direct current power supply device, power supply device for...

Direct view storage tube having improved readout performance

Direct-current power supply device, power supply device for...

Discharge device ballast component which provides both voltage t

Discharge lamp and lighting system having a discharge lamp

Discharge lamp ballast circuit

Discharge lamp ballast circuit having snubber circuit

Discharge lamp control circuit with feedback loop to lower harmo

Discharge lamp drive apparatus and liquid crystal display...

Discharge lamp drive apparatus and liquid crystal display...

Discharge lamp having an improved temperature homogeneity