| 摘要 |
PROBLEM TO BE SOLVED: To provide a discharge tube that prevents loss of light quantity and prevents peeling-off of a reflecting film from the outer peripheral surface of a glass bulb, and a strobe device. SOLUTION: The discharge tube 2 is configured such that a reflecting film 10 is formed by metal vapor-deposition on the outer peripheral surface of a cylindrical glass bulb 9. The reflecting film 10 is vapor-deposited in the area of 240°or more in the circumferential direction and covered with a sintered silica film 15 from the outside. The strobe device 1 includes the discharge tube 2. COPYRIGHT: (C)2011,JPO&INPIT
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