Patent ID: 8114013

Claim:
An endoscope insertion portion comprising: an insertion portion including a distal end surface; a first image pickup portion including a first optical member for introducing light from a subject, the first optical member being provided on the distal end surface; a second image pickup portion configured to obtain an observation image having an observation magnification in accordance with a zooming operation, including a second optical member for introducing light from the subject, the second optical member being provided on the distal end surface; a first illumination optical system having a first center, the first illumination optical system being provided on the distal end surface; and a second illumination optical system having a second center, the second illumination optical system being provided on the distal end surface such that the second optical member is disposed to approximately line up on a straight line connecting the first center and the second center, wherein the second optical member is more frequently used for observation than the first optical member, the second optical member is disposed near an approximate center of the distal end surface, and the second optical member has an outer surface area larger than that of the first optical member; and a region of the observation image obtained by the second image pickup portion, the region being capable of being displayed in an enlarged manner in accordance with the zooming operation, the region is provided where illumination lights respectively emitted from the first illumination optical system and the second illumination optical system overlap each other.