Multi-tube fluorescent discharge lamp

Details Multi-tube fluorescent discharge lamp Multi-tube fluorescent discharge lamp

2007-01-16

2007-01-16

Santiago, Mariceli (Department: 2879)

Electric lamp and discharge devices

With temperature modifier

Double wall, jacket or casing for envelope

C313S324000, C313S036000, C313S609000, C313S610000, C313S611000, C313S634000

Reexamination Certificate

active

09681524

ABSTRACT:
A multi-tube fluorescent discharge lamp, which is constructed of multiple glass tubes of different caliber in coaxial structure, the both sides of the inner most tube are connected to a cathode respectively, by isolating, perforating and blocking the discharge path, forming a successive discharge path, and coating phosphor on surface of the discharge tubes. The Invention can then have more fluorescent area than a conventional fluorescent lamp of the similar size and higher lumen as well as power transfer factor. Compared with the power consumption of a conventional fluorescent discharge lamp, the Invention therefore has higher luminous flux.

REFERENCES:
patent: 2116720 (1938-05-01), Wiegand
patent: 4490642 (1984-12-01), Dobrusskin et al.
patent: 4839565 (1989-06-01), Osteen

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