Filling composition for incandescent lamp, and incandescent lamp containing the same and its use
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United States of America Patent
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Jul 11, 1995
Issued Date -
N/A
app pub date -
Dec 22, 1993
filing date -
Apr 9, 1991
priority date (Note) -
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Abstract
A filling composition consisting essentially of about 20-75% by volume of xenon gas and about 15-80% by volume of nitrogen gas exhibits excellent luminous characteristics and an extended life expectancy but hardly causes arc discharge when enclosed in incandescent lamp. Incandescent lamps using the filling composition emit a light which is natural, appropriately high in color temperature, excellent in color rendering properties and gentle to the eye when operated at a voltage exceeding their rating but not exceeding 150% thereof.
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