| 摘要 |
PROBLEM TO BE SOLVED: To provide a fluorescent lamp high in luminance at an end of a glass bulb, and small in luminance irregularity in the tube axial direction of the glass bulb. SOLUTION: This fluorescent lamp 1 is provided with: the glass bulb 10 having a discharge space 11 in the inside, and having a phosphor layer 20 emitting light by receiving an ultraviolet ray formed on the inside surface; and stems 30 sealing ends of the glass bulb 10. A reflecting layer 50 reflecting the ultraviolet ray toward the discharge space 11 of the glass bulb 10 is formed on the stem 30. COPYRIGHT: (C)2008,JPO&INPIT
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