Electric lamp and discharge devices – With temperature modifier – Double wall – jacket or casing for envelope
Patent
1988-11-16
1990-08-21
Wieder, Kenneth
Electric lamp and discharge devices
With temperature modifier
Double wall, jacket or casing for envelope
313634, H01J 6134
Patent
active
049509381
ABSTRACT:
A high-pressure discharge lamp having an internal metal shield for containing fragments in the event the lamp discharge vessel ruptures. The metal shield is mounted in an electrically isolated condition to avoid acceleration of sodium loss from the discharge vessel due to the proximity of the discharge vessel and the metal shield.
REFERENCES:
patent: 314208 (1885-03-01), White
patent: 4625141 (1986-11-01), Keeffe et al.
patent: 4678960 (1987-07-01), Reiling
patent: 4721876 (1988-01-01), White et al.
Lobato Emmanuel J.
North American Philips Corp.
Wieder Kenneth
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