| 摘要 |
PROBLEM TO BE SOLVED: To make it possible to surely mount an exposure lamp without moving a holder even in the case a lock screw loosens. SOLUTION: This exposure lamp mounting device includes the holder 6 for holding the exposure lamp 25 via a power feed blade 7, a base 5 for mounting the holder 6, the lock screw 9 for fixing the holder 6 to the base 5 and a long hole 10 (a small-hole part, large-hole part 10b) which is bored along the axial direction of the exposure lamp 25 and inserts the lock screw 9 into holder 6. In such a case the lock screw 9 has a large-diameter part 9c and a threaded part 9b formed to the diameter smaller than the diameter of the large-diameter part 9c along its screwing direction. The long hole 10 has the small-hole part which allows the insertion of the threaded part 9b of the lock screw 9 and prohibits the insertion of the large-diameter part 9c and the large- hole part 10b which is continuous with the small-hole part and allows the insertion of the large-diameter part 9c.
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