Tungsten-halogen lamp with light-source capsule containment...

Details Tungsten-halogen lamp with light-source capsule containment... Tungsten-halogen lamp with light-source capsule containment...

H - Electricity

01

J

313/10

H01J 61/50 (2006.01) H01J 61/34 (2006.01) H01K 1/26 (2006.01)

Patent

CA 1214194

-13- ABSTRACT A double-enveloped tungsten halogen incandescent lamp having a light-source capsule containment device wherein a knitted wire mesh surrounds the light-source capsule and may be anchored to the capsule, stem, or lead-in wires. In the event of a burst of the light-source capsule, the containment mesh substantially restricts shards of the capsule from shattering the outer envelope of the lamp. In some embodiments, a crumpled portion of the containment mesh is positioned above the capsule and provides a collision-absorbing cushion in the event the capsule and mesh are propelled against the outer envelope by the burst of the light-source capsule whereby further protection against the shattering of the outer envelope is provided. Lamps with such containment devices have improved operational safety characteristics.

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