Patent ID: 7513699

Claim:
A fiber optic receptacle to be connected to an optical fiber held by a ferrule, comprising: a tubular shaped sleeve comprising an inner bore into which the ferrule is to be inserted; a stopper member comprising a distal end face to be contacted to one end of the ferrule, a rear end face and a through hole penetrating from the distal end face to the rear end face, the stopper member being disposed in the inner bore of the tubular shaped sleeve so that the distal end face and the rear end face of the stopper member are positioned in the inner bore apart from both ends of the inner bore; wherein the inner bore of the tubular shaped sleeve has a contact area contacting with a circumference of the stopper member and non-contact area not contacting with a circumference of the stopper member, the non-contact area being disposed on both sides of the contact area, and wherein a diameter of the inner bore in the contact area is larger than a diameter of the inner bore in the non-contact area.