Electric lamp and discharge devices – With luminescent solid or liquid material – With gaseous discharge medium
Patent
1995-12-07
1997-11-25
O'Shea, Sandra L.
Electric lamp and discharge devices
With luminescent solid or liquid material
With gaseous discharge medium
313 43, 313492, 313634, 315 58, H01J 162, H01J 6304, H01J 102, H01J 724
Patent
active
056915985
ABSTRACT:
A fluorescent lamp includes a lamp tube having first and second ends and containing fill materials for causing light generation when provided with electrical power. The lamp further includes first and second power-transferring means at the first and second ends of the lamp tube, respectively, for providing the fill materials in the lamp tube with electrical power. Also included is a thermal heat shield separating the first power-transferring means from ballast circuitry which supplies power to the first power-transferring means and which has a lifetime that becomes substantially less as its operating temperature increases. The thermal heat shield is constructed so that it reflects back to the first power-transferring means and any adjacent portion of the lamp tube sufficient radiant energy to reduce the operating temperature of the ballast circuitry by more than about one degree Celsius compared with the absence of the heat shield.
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Belle Kelvin B.
Chamberlain Leon F.
Fillion Raymond A.
Fulop Jozsef
Kachmarik David J.
General Electric Company
Hawranko George E.
Haynes Mack
O'Shea Sandra L.
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