Metal vapor discharge lamp

Details Metal vapor discharge lamp Metal vapor discharge lamp

1994-06-27

1996-03-19

O'Shea, Sandra L.

Electric lamp and discharge devices

With gas or vapor

Envelope with particular structure

313489, 313623, H01J 1716, H01J 6135, H01J 6136, H01J 1718

Patent

active

055005713

ABSTRACT:
A metal vapor discharge lamp includes an arc tube having on an inner surface a coating of multi-layer construction including a layer preferably facing the interior discharge space of the arc tube and formed with a strongly covalent bonded material and at least another layer made to have a function of shielding water, whereby reaction of enclosed materials with the arc tube and oozing of water from the arc tube can be prevented, and cracking and peeling of the coating can be effectively prevented from occurring.

REFERENCES:
patent: Re30165 (1979-12-01), Mason et al.
patent: 3334261 (1967-08-01), Butler
patent: 3350598 (1967-10-01), Corbin
patent: 3900754 (1975-08-01), Mason et al.
patent: 3984590 (1976-10-01), Mason et al.
patent: 4591759 (1986-05-01), Chalek
patent: 4899347 (1990-02-01), Kuchar
patent: 5021711 (1991-06-01), Madden
patent: 5032762 (1991-07-01), Spacil et al.
patent: 5168193 (1992-12-01), Hoegler
patent: 5346729 (1994-09-01), Pitts

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