Patent ID: 8308637

Claim:
An endoscope specifically comprising: a distal-end adapter including light emitting devices constituting an illumination optical system, a substrate for the light emitting devices, a support member for supporting the substrate, a first heat-conducting member through which heat generated by the light emitting devices is conducted, and an objective optical system constituting an observation optical system, the light emitting devices being arranged in one surface of the distal-end adapter, the substrate having a first electric connecting unit for the light emitting devices which is arranged in the other surface of the distal-end adapter; and an insertion unit having a distal end portion from which the distal-end adapter is detachable, the distal end portion including an image pickup device constituting the observation optical system, a second electric connecting unit which is electrically connected to the first electric connecting unit in the substrate, a second heat-conducting member through which the heat transferred through the first heat-conducting member is further conducted, and a heat-radiating member for radiating the heat conducted through the second heat-conducting member from the distal end portion in the direction toward the proximal end of the endoscope.