H - Electricity – 01 – K
Patent
H - Electricity
01
K
H01K 1/26 (2006.01) H01K 1/32 (2006.01)
Patent
CA 2243449
An incandescent lamp comprises a hermetically sealed hardglass envelope with a first fill gas including halogen contained by the envelope, at least one tungsten filament sealed in the envelope and supported by lead-in wires, and an infrared reflective coating on an outside surface of the envelope. An outer jacket encloses the envelope, the outer jacket having therein a second fill gas selected from a group of fill gases, the group consisting of (1) helium and (2) a mixture of helium and hydrogen.
Gagnon Peter R.
Montgomery William Eric
Puracchio Gerald A.
Fetherstonhaugh & Co.
Osram Sylvania Inc.
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