ARC LAMP ASSEMBLY WITH IMPROVED CONTAINMENT

ARC LAMP ASSEMBLY WITH IMPROVED CONTAINMENT A metal halide arc lamp assembly has a configuration which provides improved containment performance in the event that the arc tube bursts. The lamp assembly includes a metal halide arc tube, a cylindrical quartz shroud surrounding the arc tube and a seale...

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Bibliographic Details
Main Authors PARROTT, RICHARD A, NORTRUP, EDWARD H
Format Patent
LanguageEnglish
French
Published 12.03.1992
Edition5
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
ELECTRICITY
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Summary:ARC LAMP ASSEMBLY WITH IMPROVED CONTAINMENT A metal halide arc lamp assembly has a configuration which provides improved containment performance in the event that the arc tube bursts. The lamp assembly includes a metal halide arc tube, a cylindrical quartz shroud surrounding the arc tube and a sealed outer envelope enclosing the shroud and the arc tube. The arc tube has press seals with a generally I-shaped cross section. The maximum dimension of the press seals perpendicular to the arc tube axis is not substantially greater than the maximum dimension of the bulb portion of the arc tube. The spacing between the outside surface of the bulb portion and the inside surface of the shroud is not greater than about three millimeters.
Bibliography:Application Number: CA19912051023