Victor D. Roberts

Combination lamp and integrating sphere for efficiently coupling radiant energy from a gas discharge to a lightguide

Integrated transformer and inductor

Discharge lamp using acoustic resonant oscillations to ensure high efficiency

Single-conductor power line communications system

Operation of standby filament associated with an AC arc discharge lamp ballast

Feedback system for stabilizing the arc discharge of a high intensity discharge lamp

Amalgam heating system for solenoidal electric field lamps

Electrostatic shield to reduce wall damage in an electrodeless high intensity discharge lamp

Integrated multi-stage electrical filter

Magnetically tunable starting circuit for an electrodeless high intensity discharge lamp