Illumination device
Image input device
Incandescent light bulb life extending apparatus
Incident illumination responsive light control
Incident metering electronic flash control
Infrared actuated control switch assembly
Infrared actuated control switch assembly
Infrared detection circuit
Infrared ray detector control illumination system
Infrared sensitive electric controlled lamp seat
Instrument panel and EL lamp thereof
Integrated LED drive electronics on silicon-on-insulator...
Intelligent wall switch
Interface system to control flash lamp
Inverter power supply for incandescent lamp
Lamp brightness control circuit with ambient light compensation
Lamp brightness control circuit with ambient light compensation
Lamp control circuit
Lamp control circuit using heater/thermistor time delay
Lamp control responsive to rapid increases in ambient light