Fluorescent lamp with integral circuitry
AssigneeKoninklijke Philips Electronics N.V.
InventorsGert W. Bruning, Jose Azevedo
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Abstract
A tubular fluorescent lamp has a light emissive portion and an integral adjacent portion for containing power circuitry, such as an electronic ballast for providing high voltage power to electrodes of the lamp. All necessary electrical connections between the power circuitry and the electrodes are provided either within or on the lamp structure itself.
Claims22
A fluorescent lamp comprising a tubular envelope having a sealed light-emissive portion for containing longitudinally separated first and second electrodes and an ionizable gaseous medium and having an adjacent portion for containing power circuitry for electrical connection to at least one of the electrodes, said adjacent portion being isolated from the light-emissive portion by a sealed end of said light-emissive portion.
A fluorescent lamp comprising:
- a. a first tubular envelope portion for containing an ionizable gaseous medium and having first and second electrodes disposed within said medium adjacent respective sealed first and second ends of said envelope portion;
- b. a second tubular envelope portion integrally attached to the first end for containing power circuitry for the lamp;
- c. a conductor supported by the first tubular envelope portion for electrically connecting said power circuitry to the second electrode.
Dependencies are inferred from the claim text.