PROBLEM TO BE SOLVED: To provide a light source device for an endoscope, in which a plurality of integrated circuits provided together with a light source lamp or the like inside a housing can be efficiently cooled using a low-cost configuration and which can demonstrate an effect in reduction of radiation noise.SOLUTION: In the light source device for an endoscope in which a circuit board 6 provided with an electronic circuit including a plurality of integrated circuits 11, 12 and 13 is arranged inside a housing, a heat radiation plate 7 which is made of a metal plate and comes in surface contact simultaneously with the plurality of integrated circuits 11, 12 and 13 directly or through heat transfer sheets 16 and 17 is arranged inside the housing with a gap from the circuit board 6.COPYRIGHT: (C)2013,JPO&INPIT【課題】ハウジング内に光源ランプ等と併設されている複数の集積回路を低コストの構成で効率よく冷却することができ、しかも放射ノイズの低減にも効果を発揮することができる内視鏡用光源装置を提供すること【解決手段】複数の集積回路11,12,13を含む電子回路が設けられた回路基板6がハウジング内に配置された内視鏡用光源装置において、複数の集積回路11,12,13と直接又は伝熱シート16,17を介して同時に面接触する金属板製の放熱板7が、回路基板6との間に隙間をあけてハウジング内に配置されている。【選択図】図1
