Discharge lamp having two-band phosphor

Details Discharge lamp having two-band phosphor Discharge lamp having two-band phosphor

2007-04-03

2007-04-03

Santiago, Mariceli (Department: 2879)

Electric lamp and discharge devices

With luminescent solid or liquid material

With gaseous discharge medium

C313S485000, C313S487000

Reexamination Certificate

active

10858202

ABSTRACT:
A discharge lamp (1) having a discharge vessel (2) that surrounds a discharge medium that emits electromagnetic radiation in the VUV region during operation of the lamp, has on the inner side of the discharge vessel wall a yellow phosphor layer facing the discharge medium, and a blue phosphor layer lying therebelow. By contrast with a conventional three-band phosphor mixture, a higher luminous flux and a smaller color locus displacement are thereby achieved.

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