Electric lamp and discharge devices – With magnetic device – Field transverse to discharge
Patent
1975-04-23
1977-05-10
Demeo, Palmer C.
Electric lamp and discharge devices
With magnetic device
Field transverse to discharge
313229, H01J 6118
Patent
active
040230597
ABSTRACT:
Compositions are described including free-flowing particles of controlled size of purified metal halides such as sodium iodide and mixtures of sodium iodide with scandium iodide. These ultra-pure metal halide particles are particularly useful as a vaporizable fill disposed within an arc tube of a high pressure electric discharge device. The preparation and identification of the coordination entity Na.sup.+ScI.sub.4.sup.- (III) is also described. The apparatus for producing purified metal halides of accurately controlled particle size includes means for evaporating volatiles from the solid impure metal halide, melting the impure halide, passing hydrogen, hydrogen halide, hydrogen and halogen, or mixtures thereof through the halide, and then passing the molten halide through a vibrating discharge conduit or nozzle into an inert quenching atmosphere to form the particles of purified halide.
REFERENCES:
patent: 3234421 (1966-02-01), Reiling
patent: 3279877 (1966-10-01), Smith et al.
patent: 3334261 (1967-08-01), Butler et al.
patent: 3351798 (1967-11-01), Bauer
patent: 3407327 (1968-10-01), Koury et al.
patent: 3445719 (1969-05-01), Thouret et al.
patent: 3514659 (1970-05-01), Gungle et al.
patent: 3558963 (1971-01-01), Hanneman et al.
"High-Wattage High Density Line Spectra Metal Halide Lamp," by F. Koury et al., J. Illum. Eng. Soc. (USA), vol. 1, No. 3, pp. 216-221, Apr. 1972.
LandOfFree
High pressure light emitting electric discharge device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with High pressure light emitting electric discharge device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High pressure light emitting electric discharge device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1985437