H - Electricity – 01 – J
Patent
H - Electricity
01
J
H01J 61/34 (2006.01) H01J 61/04 (2006.01) H01J 61/50 (2006.01) H01J 61/82 (2006.01)
Patent
CA 2119336
Abstract of the Disclosure METAL HALIDE ARC LAMP HAVING GLASS CONTAINMENT SHROUD A double-enveloped lamp assembly includes a light-source capsule, which is substantially surrounded by a light-transmissive shroud made of glass, preferably aluminosilicate glass. In a preferred embodiment, the lamp assembly is a metal halide arc discharge lamp, and the shroud is a cylindrical, open-ended tube. For metal halide lamps having a power rating of 150 watts or less, the shroud preferably has a wall thickness of one millimeter. The thin wall glass shroud meets or exceeds containment performance requirements.
Marlor Richard C.
Nortrup Edward H.
Parrott Richard A.
Osram Sylvania Inc.
R. William Wray & Associates
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