Fluorescent lamp with end of life arc quenching structure

Details Fluorescent lamp with end of life arc quenching structure Fluorescent lamp with end of life arc quenching structure

1996-03-14

1998-01-06

Williams, Hezron E.

Electric lamp and discharge devices

With luminescent solid or liquid material

With gaseous discharge medium

313631, 313626, 313331, H01J 162, H01J 1704, H01J 550

Patent

active

057058873

ABSTRACT:
A fluorescent lamp is disclosed containing a deposit of a dried metal hydride-containing paste. The dried metal hydride-containing paste has a decomposition temperature higher than the temperature present during normal lamp operation. At the end of the lamp life, an increase in lamp temperature decomposes the metal hydride-containing paste and releases hydrogen within the lamp. The presence of hydrogen causes the lamp to extinguish passively without significant end heating or glass cracking.

REFERENCES:
patent: 3560790 (1971-02-01), Vollmer
patent: 3629916 (1971-12-01), Vollmer
patent: 3840324 (1974-10-01), Shaffer et al.
patent: 4055686 (1977-10-01), Steinberg et al.
patent: 4105910 (1978-08-01), Evans
patent: 5098326 (1992-03-01), Groczyca et al.
patent: 5210461 (1993-05-01), Pai et al.
patent: 5449971 (1995-09-01), Scott et al.
patent: 5585693 (1996-12-01), Shaffer

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