Tungsten halogen lamp with coiled getter

Details Tungsten halogen lamp with coiled getter Tungsten halogen lamp with coiled getter

H - Electricity

01

K

313/104

H01K 1/54 (2006.01) H01J 7/18 (2006.01)

Patent

CA 1183571

-10- ABSTRACT A single-ended tungsten halogen lamp having a tubular hardglass envelope containing an inert gas and a halogen, preferably bromine. An improved halogen regenerative cycle in this type of lamp is achieved by minimizing the bromine and impurity attack on the tungsten filament, thus increasing lamp life over a wider application temperature range, through the use of a tantalum or zirconium getter which is in the form of a coil. This coil is particularly useful in small volume lamps, and in a preferred embodiment, is attached to the filament mounting structure (bridge) on the side thereof opposite the main filament body.

402080

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