PAR lamp having an integral photoelectric circuit arrangement
Penlight and touch screen data input system and method for...
Phosphorescent display system
Photo-feedback drive system
Photocell-controlled lighting system
Photocontrol arrangement with mechanically held contacts for...
Photocontrol for electric lamps
Photocontroller diagnostic system
Photographic flash apparatus
Photographic illumination apparatus
Photometry power supply for automatic electronic flash
Photosensitive control with dynamic calibration
Photosensitive illuminating display
Photosensor and control system for dimming lighting fixtures...
Positive space-charge closing switch apparatus
Power saver for discharge lamps
Power saving circuit
Power saving voltage reduction system for high intensity dischar
Processor controlled fluorescent lamp dimmer for aircraft liquid
Projector