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US 6,656,006 B2Granted
Fluorescent lamp and method for production
AssigneeHewlett-Packard Development Company, L.P.
InventorsYohei Yamamuro, Thomas Louchard, Thomas J. Roetker
Life of this patent
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Abstract
A method and lamp produced by using this method for evenly disbursing mercury and other lamp compounds throughout the entire length of assembled fluorescent lamps by uniformly and thoroughly heating each lamp's sealed chamber containing these materials to a temperature high enough to vaporize the mercury therein.
Claims16
A method of producing a fluorescent lamp, said method comprising:
- inserting mercury into a chamber having a length, said chamber containing phosphor;
- securing electrodes to said chamber;
- sealing said chamber;
- and
- uniformly heating said chamber along said length of said chamber to a temperature above a vaporization temperature of said mercury for a defined period to vaporize said mercury and thereby evenly disburse said mercury within said chamber.
2 more elements
A method of reducing warm-up times of a plurality of assembled and sealed fluorescent lamps, said method comprising:
- placing the plurality of assembled lamps on a structure such that each lamp of said plurality are spaced apart from each other by a defined distance;
- and
- evenly heating said plurality of lamps in a rack such that mercury in said plurality of said lamps vaporizes and thereby becomes evenly distributed through each said lamp of said plurality of assembled and sealed fluorescent lamps.
Dependencies are inferred from the claim text.