Universal burning ceramic lamp

Details Universal burning ceramic lamp Universal burning ceramic lamp

H - Electricity

01

J

313/10, 313/137

H01J 61/20 (2006.01) H01J 61/24 (2006.01) H01J 61/30 (2006.01)

Patent

CA 1165374

LD 8432 UNIVERSAL BURNING CERAMIC LAMP ABSTRACT A high pressure alkali metal vapor lamp envelope of alumina ceramic has an externally projecting metal tube serving as an inlead and as a reservoir for excess sodium-mercury amalgam. The ability of the lamp to withstand heavy vibration without the occurrence of voltage rise and drop-out caused by expulsion of amal- gam droplets from the reservoir is-enhanced by flatten- ing the end portion of the metal tube to a least di- mension adequate to increase the capillary attraction to better than twice the force of gravity.

373462

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