Incandescent lamps including a combined getter
AssigneeGTE Products Corporation
InventorJohn W. Shaffer
Life of this patent
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Abstract
This invention relates to incandescent lamps and more particularly to the gettering of such lamps. In accordance with the present invention, there is provided an incandescent lamp comprising an envelope, a tungsten filament mounted within the envelope, a fill gas, and a getter comprising silane and phosphorus. In accordance with another aspect of the present invention, there is provided a method of gettering an incandescent lamp. The method comprises providing a getter comprising phosphorus and silane in an unsealed lamp envelope; sealing the lamp envelope; and activating the phosphorus source and silane located within the sealed envelope.
Claims23
A method of gettering an incandescent lamp comprising the steps of:
- providing a getter comprising phosphorus and silane in an unsealed lamp envelope;
- sealing the lamp envelope;
- and
- activating the phosphorus and silane contained in the sealed envelope.
A method of gettering an incandescent lamp comprising the steps of:
- introducing a phosphorus source into an unsealed envelope;
- treating the phosphorus source contained in the unsealed envelope to produce elemental phosphorus within the unsealed envelope;
- introducing a fill gas and silane into the unsealed lamp envelope;
- sealing the lamp envelope;
- and
- activating the elemental phosphorus and silane contained in the sealed envelope.
An incandescent lamp comprising:
- an envelope;
- a tungsten filament mounted within the envelope;
- a fill gas;
- and
- a getter comprising silane and phosphorus.
A tungsten halogen incandescent lamp comprising:
- an envelope;
- a tungsten filament mounted within the envelope;
- a fill gas comprising a halogen, hydrogen and an inert gas;
- and
- a getter comprising silane and phosphorus.
An incandescent lamp comprising:
- a sealed envelope;
- a tungsten filament mounted within the envelope;
- and
- a fill gas;
- a getter comprising silane and phosphorus being provided in the sealed envelope during manufacture of the lamp to getter impurities therein.
Dependencies are inferred from the claim text.