Fluorescent lamp

Details Fluorescent lamp Fluorescent lamp

1997-07-29

1999-07-27

Patel, Ashok

Electric lamp and discharge devices

With gas or vapor

Having electrode exterior to envelope

313234, 313594, 313634, H01J 6504, H01J 6106

Patent

active

059295643

ABSTRACT:
Since the internal electrode of a fluorescent lamp comprises a base portion made from a transparent glass member having substantially the same thermal expansion coefficient as that of a tubular glass bulb and shaped like a pipe or rod and a conductive and transparent film formed on the surface of the base portion, the thermal expansion coefficient of the internal electrode is made equal to that of the tubular glass bulb to prevent damage caused by temperature variations, and the entire internal electrode 4 is transparent so that all the beams from the fluorescent film can be radiated to the outside without being shaded.

REFERENCES:
patent: 5006758 (1991-04-01), Gellert et al.
patent: 5343114 (1994-08-01), Beneking et al.
patent: 5581152 (1996-12-01), Matsuno et al.
patent: 5666026 (1997-09-01), Matsuno et al.

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