Metal vapor discharge lamp

Details Metal vapor discharge lamp Metal vapor discharge lamp

1986-09-22

1988-09-06

Moore, David K.

Electric lamp and discharge devices

With gas or vapor

With particular gas or vapor

313639, 313642, H01J 6118, H01J 6120

Patent

active

047695765

ABSTRACT:
A metal vapor discharge lamp includes a light-emitting tubing in which a halogen and iron at least 0.005 mg per cc of the internal volume of the light-emitting tubing are filled together with mercury and a rare gas in amounts sufficient to retain a discharge. Magnesium is additionally filled in at a magnesium-to-iron ratio of 1/40-2/3 in terms of gram atom number so as to prevent iron from depositing on the inner wall of the light-emitting tubing and forming a thin film thereon.

REFERENCES:
patent: 2701849 (1955-02-01), Penning et al.
patent: 3319119 (1967-05-01), Rendina
patent: 3740605 (1973-06-01), Divoix et al.
patent: 3867665 (1975-02-01), Furmidge et al.
patent: 4155025 (1979-05-01), Dobrusskin et al.
patent: 4158789 (1979-06-01), Scholz et al.
patent: 4360758 (1982-11-01), Thornton, Jr. et al.
Author: Browner et al., Title: Improvements in Electrodeless Discharge Lamp Radiant Flux and Stability by Precise Temperature Control, Date: 3/7/72 p.: 5.

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