| 摘要 |
PROBLEM TO BE SOLVED: To provide a fluorescent lamp with outer surface electrodes that have superior characteristics of luminous flux rise and starting property and is made long in service life. SOLUTION: In this florescent lamp a glass tube 4 has its inside coated with a plurality of fluorescent film strips 5 arranged with an empty strip-like interval between adjacent film strips 5 along the axis of the glass tube, containing a discharge medium including xenon gas in a sealed manner. A pair of longitudinal electrode strip layers 6a and 6b are deposited on the outside of the glass tube 4 with a given interval between them along the length of the glass tube, thus forming the external electrodes. A conductor or semiconductor layer 7 is partially deposited on the inside of the glass tube, corresponding to one end part of the electrode strip layers 6a and 6b so as to at least partially opposing both the electrode strip layers 6a and 6b. The surface of the conductor or semiconductor layer 7 exposed to the discharge space is at least partially coated with a protective layer 8.
|
