High intensity discharge device containing oxytrihalides

Patent · Thu Jan 01 00:00:00 EST 1987

OSTI ID:866274

Lapatovich, Walter P ^[1]; Keeffe, William M ^[2]; Liebermann, Richard W ^[3]; Maya, Jakob ^[4]

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1. Hudson, MA
2. Rockport, MA
3. Danvers, MA
4. Brookline, MA

A fill composition for a high intensity discharge device including mercury, niobium oxytrihalide, and a molecular stabilization agent is provided. The molar ratio of niobium oxytrihalide to the molecular stabilization agent in the fill is in the range of from about 5:1 to about 7.5:1. Niobium oxytrihalide is present in the fill in sufficient amount to produce, by dissociation in the discharge, atomic niobium, niobium oxide, NbO, and niobium dioxide, NbO.sub.2, with the molar ratio of niobium-containing vapor species to mercury in the fill being in the range of from about 0.01:1 to about 0.50:1; and mercury pressure of about 1 to about 50 atmospheres at lamp operating temperature. There is also provided a high intensity discharge device comprising a sealed light-transmissive arc tube; the arc tube including the above-described fill; and an energizing means for producing an electric discharge within the arc tube.

• Research Organization: GTE Products Corp
• DOE Contract Number: AC03-84SF12235
• Assignee: GTE Laboratories Incorporated (Waltham, MA); GTE Products Corporation (Danvers, MA)
• Patent Number(s): US 4672267
• OSTI ID: 866274
• Country of Publication: United States
• Language: English

Related Subjects

intensity
discharge
device
containing
oxytrihalides
fill
composition
including
mercury
niobium
oxytrihalide
molecular
stabilization
agent
provided
molar
ratio
range
sufficient
amount
produce
dissociation
atomic
oxide
nbo
dioxide
niobium-containing
vapor
species
01
50
pressure
atmospheres
lamp
operating
temperature
comprising
sealed
light-transmissive
tube
above-described
energizing
means
producing
electric
niobium oxide
intensity discharge
device containing
vapor species
sufficient amount
discharge device
tube including
molar ratio
operating temperature
device comprising
device including
electric discharge
niobium oxytrihalide
stabilization agent
including mercury
containing vapor
/313/