| 摘要 |
PROBLEM TO BE SOLVED: To simply exchange the switch and exchange of a plurality of lamps in a short time without increasing the size of a device main body. SOLUTION: This light source device equipped with a plurality of illuminating light supplying lamps 3a and 3b in a housing is provided with a lamp switching mechanism for moving one of equipped lamps to a using position in a housing in order to switch using of the lamps among the plurality of equipped lamps, and a moving mechanism 10 for moving all of the equipped lamps to positions where lamp can be exchanged from the outside.
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