INCANDESCENT LIGHT SOURCE MANUFACTURING PROCESS Russian patent published in 2000 - IPC

FIELD: electrical engineering; miscellaneous incandescent light sources. SUBSTANCE: process includes gettering of electrodes, pin installation and wiring, sealing, evacuation, filling, and base-connection of lamp; novelty is that gettering of incandescent source electrodes is effected using method of ion-plasma evaporation of titanium getter layer onto middle part of electrode internal section within working chamber in glow discharge of inert gas at pressure of 1•10^-6 to 2•10^-6 mm of mercury, current of 70-80 A, and voltage of 40-50 V; evaporation time is 5-10 min. Evaporated layer length on middle part of electrode internal section between pin blade and wiring of incandescent light sources may be 20-25 mm at layer thickness of 2.5-5 mcm depending on evaporation time. EFFECT: increased service life, reduced decay of heat flux, improved reliability of performance characteristics. 2 cl, 7 dwg, 1 tbl