Patent ID: 8724668

Claim:
A light source device having a plurality of laser modules, in each of which a semiconductor laser is arranged on one side of a stem and electricity-receiving terminals, which receive electricity for driving the semiconductor laser, are arranged on the other side of the stem, and configured to concentrate laser beams emitted from the laser modules and emit the concentrated laser beams, the light source device comprising: a module fixing body having a plurality of mounting holes into which the laser modules are fitted and accommodated, respectively; an electricity-supplying member is connected to the electricity-receiving terminals of the laser module accommodated in the mounting hole; and a cooling member that cools each of the laser modules, wherein a groove in which the electricity-supplying member is accommodated is formed in a back surface of the module fixing body, and the cooling member is closely arranged on the back surface of the module fixing body where the groove is formed, and wherein the electricity-supplying member is a flexible printed board, branched off in the groove and electricity-supplying terminals are formed at respective ends of branched-off flexible printed boards so that the electricity-supplying terminals are connected with respective electricity-receiving terminals.