High-pressure discharge lamp

Details High-pressure discharge lamp High-pressure discharge lamp

1996-03-27

1998-05-26

Williams, Hezron E.

Electric lamp and discharge devices

With gas or vapor

Having electrode lead-in or electrode support sealed to...

313624, H01J 6100

Patent

active

057571350

ABSTRACT:
The invention relates to an electric lamp provided with a body which radiates light in the operational state of the lamp and which is enclosed with intervening space by an outer lamp envelope which is provided at one end with a stemtube with a pinch and which supports a lamp cap shell, through which pinch current lead-through conductors extend, each current lead through conductor being connected to a contact point of the lamp cap shell via an external conductor. According to the invention, each of the current lead-through conductors and the accompanying external conductors is provided with a moisture-repelling coating at least at the area of a mutual welded joint.

REFERENCES:
patent: Re30165 (1979-12-01), Mason et al.
patent: 3742117 (1973-06-01), Levand, Jr. et al.
patent: 3984590 (1976-10-01), Mason et al.
patent: 4027073 (1977-05-01), Clark
patent: 4106840 (1978-08-01), Tyson
patent: 4691142 (1987-09-01), Dohmen
patent: 5064395 (1991-11-01), Kling et al.
patent: 5155612 (1992-10-01), Adachi et al.
patent: 5387840 (1995-02-01), Noteleteirs et al.
patent: 5498927 (1996-03-01), Vervecken et al.

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