Object recognition system including an adaptive light source

Occupancy sensor and method of operating same

Occupancy sensors programmed to determine loss of lamp life...

Oil well heater cable

Oled with contrast enhancement features

On-off lamp regulator for an electro-optical sensor

Open coil electric heater supporting structure

Open coil electric resistance heater using twisted...

Open coil resistance heater with right and left hand...

Open loop current control ballast for low pressure mercury...

Operating appliance and an operating method for...

Operating circuit for a dielectrically impeded discharge...

Operating circuit for a discharge lamp with early eol detection

Operating circuit for a discharge lamp with preheatable...

Operating circuit for a discharge lamp with...

Operating circuit for an electrodeless low-pressure...

Operating circuit for at least one low-pressure discharge...

Operating circuit for discharge lamps with switchable...

Operating circuit for electric discharge lamp

Operating circuit for flash lamp directly coupled to ac source