FLUORESCENT LAMP AND LIGHTING SYSTEM

摘要

PROBLEM TO BE SOLVED: To attain enhancement of starting characteristics under a dark state by providing a material with an n-type semiconductor characteristic in a glass bulb of an aperture fluorescent lamp having external electrodes or providing a conductive material between the glass bulb and a fluorescent material film. SOLUTION: This fluorescent lamp has an opening along the tube axis direction of a tubular glass bulb 1. A fluorescent material film 2 is formed inner surface of the glass bulb 1. A pair of external electrodes 4 and 5 are formed on the outer surface along the tube axis direction. Rare gas including xenon gas is sealed in the glass bulb 1. A conductive material 8 is formed in a ribbon shape between the glass bulb 1 and the fluorescent material film 2 along the peripheral direction of the glass bulb 1. The both ends of the conductive material 8 are exposed to the discharge space.