Patent ID: 9195013
Filing Date: 2015-11-24
Classification: G02B

Abstract:
1. An optical connector plug configured to be fitted into a LC type adapter having an opening including a wide width opening at a lower part thereof and a narrow width opening at an upper part thereof, the optical connector plug comprising: a front housing having a hollow quadratic shape, the front housing having a guide portion which is formed at an upper part of the front housing, the guide portion accommodating a spring; a plug frame configured to retain a ferrule and that is slidable in the front housing; and a locking housing fixedly and integrally connected to the plug frame and configured to be fitted into and locked with the LC type adapter, wherein the guide portion has side wall surfaces that come in sliding contact with the narrow width opening at the upper part of the LC type adapter and a locking projection formed on each of the side wall surfaces, each of the locking projections of the guide portion is configured to abut against an edge portion of the opening of the LC type adapter to move the front housing rearward when the locking housing is fitted into the LC type adapter, so that a distal end portion of the ferrule projects outward from an opening of the front housing, and the front housing has a side wall which is configured to abut against the wide width opening at the lower part of the LC type adapter, the side wall of the front housing not being provided with any of the locking projections that abut against the edge portion of the opening of the LC type adapter, and the side wall of the front housing having no opening so that light is prevented from leaking out from an interior of the front housing.