Inventors:
Imre Szilagyi - Sunnyvale CA
Steven Alexander - San Jose CA
Assignee:
ILC Technology, Inc. - Sunnyvale CA
International Classification:
H01J 550
Abstract:
An improved high intensity metal halide lamp constructed from a lamp envelope assembly to which are fused a pair of mating prebeaded electrode assemblies. The lamp envelope assembly is formed from an arc discharge envelope to which are attached a pair of side arms coaxial with the arc discharge envelope and on opposite sides thereof. The prebeaded electrode assemblies are constructed from an electrode ribbon assembly which is encapsulated by vitreous quartz which has a lower hydroxyl ion content than the quartz used in the side arms of the lamp envelope.