Electrodeless discharge lamp and device for increasing the lamp'

Details Electrodeless discharge lamp and device for increasing the lamp' Electrodeless discharge lamp and device for increasing the lamp'

1996-05-06

1997-12-16

Pascal, Robert

Electric lamp and discharge devices: systems

Pulsating or a.c. supply

Induction-type discharge device load

445 41, 445 55, 313565, H05B 4116

Patent

active

056989512

ABSTRACT:
An electrodeless fluorescent lamp containing a fill of a rare gas and mercury and a flag (14) disposed therein at a predetermined location in the lamp for increasing the rate of luminous development in the lamp. The flag (14) includes a pair of spaced-apart metallic foil sections (31) and a metallic mesh substrate (30) disposed between the foil sections (31) whereby to be shielded from ion bombardment of the discharge. A coating (30a) of indium which is adapted to amalgamate with the mercury is disposed on the mesh (30). The sections are joined together by spot-welding (32) to enable migration of mercury into and out of the space between the sections thereby enable the atoms to form an amalgam with the indium and be rapidly released therefrom.

REFERENCES:
patent: 4622495 (1986-11-01), Smeelen
patent: 5187412 (1993-02-01), El-Hamamsy et al.
patent: 5308533 (1994-05-01), Hotaling et al.
patent: 5412288 (1995-05-01), Borowiec et al.
patent: 5412289 (1995-05-01), Thomas et al.
patent: 5500567 (1996-03-01), Wilson et al.
patent: 5598069 (1997-01-01), Van Os et al.
patent: 5621266 (1997-04-01), Popov et al.

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