SODIUM VAPOR LAMP FOR SONIC PULSE OPERATION

摘要

LD09971 IMPROVED SODIUM VAPOR LAMP FOR SONIC PULSE OPERATION An improved high pressure sodium vapor lamp construction is provided for operation on sonic frequency pulses without excessive acoustic noise. The novel jacketed lamp construction employs non-magnetostrictive metal for the frame employed to suspend a ceramic arc tube within the outer jacket in combination with a particular orientation or placement for ring getter elements located within said outer envelope. Various lamp constructions employing such improvement are disclosed to enable relatively noise free lamp operation.