Cathode has incandescent emitter made from material, which emits electrons thermally, where emission layer is applied partially or completely on incandescent emitter

• Main Authors: NEUMEIER, ERNST, LENZ, EBERHARD
• Format: Patent
• Language: English; German
• Published: 29.10.2009
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS; ELECTRICITY

A cathode has an incandescent emitter (1), which is made from a material, which emits electrons thermally. An emission layer (3) having a thickness of 0.05-20mu m is applied partially or completely on the incandescent emitter, where the emission layer is made up of a material having a lower electron...