Abstract:
A hollow cathode lamp for generating an intense small light spot representative of the gas fill within the envelope and means associated with a baffle member provided between the hollow cathode and the anode of the lamp to permit low starting voltages.
Abstract:
A hollow cathode lamp of the type used as a source of spectral radiation characteristic of the materials within the hollow cathode. More particularly, the cathode is comprised of a body of material of which a characteristic radiation is desired having hollow within a front surface and an electrical conductive sleeve member surrounding said cathode body and extending beyond the front surface of the cathode body and electrically interconnected with the cathode lead-in.