Halogen lamps, fill material and methods of dosing halogen lamps
AssigneeAdvanced Lighting Technologies, Inc.
InventorSteven C. Hansen
Life of this patent
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Abstract
A pelletized lamp fill material suitable for delivering a precise quantity of rhenium and a halogen into the light emitting chamber of a tungsten halogen lamp. The pellet is formed by pressure aggregating a mixture of a metal powder and a rhenium-halogen compound. In a pellet suitable for delivering bromine into the lamp, the metal powder may be mixed with rhenium tribromide powder to form the pellet. The release of the bromine and rhenium is desirably controlled over time as a function of temperature.
Claims61
A pelletized fill material for a halogen lamp comprising rhenium and bromine.
A pelletized fill material for a halogen lamp comprising a mixture of a metal and a halide of rhenium.
A pellet suitable for delivering a predetermined amount of rhenium tribromide into a lamp, said pellet comprising a metal and rhenium tribromide.
A pellet suitable for delivering a predetermined amount of a halide of rhenium into the interior of the light emitting chamber of a lamp, said pellet comprising a metal and a halide of rhenium.
In a method of dosing a lamp with lamp fill material including the step of introducing a pellet comprising the lamp fill material into the interior of the light emitting chamber of the lamp, the improvement wherein the pellet comprises rhenium tribromide.
In a method of introducing a predetermined amount of rhenium and a halogen into the interior of the light emitting chamber of a halogen lamp, the improvement comprising the step of introducing a pellet comprising rhenium tribromide into the interior of the chamber.
A tungsten halogen lamp comprising:
- a sealed light emitting chamber formed from light transmissive material;
- a tungsten filament mounted internally of said chamber;
- and
- a pellet internally of said chamber, said pellet comprising rhenium tribromide.
A tungsten halogen lamp comprising:
- a sealed light emitting chamber formed from light transmissive material;
- a tungsten filament mounted internally of said chamber;
- and
- a pellet internally of said chamber, said pellet comprising a metal and a halide of rhenium.
A halogen lamp comprising a lamp fill pellet mechanically secured in a fixed position within the light emitting chamber of the lamp so that there is substantially no relative movement between said pellet and said light emitting chamber.
A pelletized fill material for a halogen lamp responsive to temperature for releasing bromine and rhenium over time.
Dependencies are inferred from the claim text.