Patent ID: 7749160

Claim:
An endoscope device comprising an insertion portion configured to be inserted into a lumen of a subject, the endoscope device comprising: an objective lens group positioned at a distal end of the insertion portion and used to observe or to photograph the subject; and an illumination device positioned at the distal end of the insertion portion and configured to illuminate the subject and including a LED including LED chips and an LED chip supporting block that supports the LED chips, and at least a portion of the objective lens group is mounted on the LED supporting block, wherein a lens adapter is provided with the LED chips and the LED supporting block and is positioned at a distal end of an insertion portion main body of the insertion portion, the lens adapter comprising: a substantially cylindrical outer cylinder portion positioned at a front end portion and through which is inserted the LED supporting block; a substantially cylindrical connecting portion inserted through the outer cylinder portion and fixed to a rear end portion of the outer cylinder portion; and a substantially cylindrical connecting ring mounted on the connecting portion so as to be freely rotatable, and configured to connect the LED supporting block to a distal end of the insertion portion main body so as to be freely attached thereto and to be removed therefrom, and a threaded portion screwed into a distal end of the insertion portion main body is formed on the connecting ring, wherein an abutting wall portion that protrudes inwards is provided at a front end portion of the outer cylindrical portion, and when the LED supporting block is inserted from a rear end portion of the outer cylindrical portion, a front end portion of the LED supporting block that is positioned at the front in the insertion direction of the LED supporting block abuts against the abutting wall portion.